JP4147377B2 - Caulking machine and caulking method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of a caulking machine and a caulking method for caulking a work (parts) such as a linear solenoid cap used in an automatic transmission of an automobile, for example. In addition, the present invention belongs to the technical field of a caulking method capable of easily and reliably performing caulking work.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, an automatic transmission used in an automobile is an automatic transmission having a planetary gear unit having a plurality of rotating elements, and a plurality of friction engaging elements including clutches and brakes that respectively engage or lock the plurality of rotating elements. A transmission mechanism and a hydraulic control device for controlling the operation of the friction engagement element are provided.
[0003]
Incidentally, a hydraulic control device for an automatic transmission is provided with a linear solenoid valve for controlling supply and discharge of hydraulic pressure to and from the friction engagement element. When assembling the linear solenoid in this linear solenoid valve, the linear solenoid valve is assembled by caulking the cap with the spring contracted on the solenoid body.
[0004]
The caulking operation of the cap to the solenoid body generally includes a clamping process for clamping the solenoid body, a caulking process for caulking the cap to the solenoid body at four locations, and a discharging process for discharging the linear solenoid after the caulking process. It has become.
[0005]
Such a caulking operation is performed by a caulking machine, but a conventional caulking machine has seven air cylinders (for example, two clamping cylinders for performing a clamping cylinder clamping process, There are four clamping cylinders for performing the caulking process at four locations, and one dispensing cylinder for performing the dispensing process.
[0006]
[Problems to be solved by the invention]
However, since such a conventional caulking machine uses seven cylinders, there is a problem that the caulking machine is not only very large but also has a complicated structure. In addition, since the caulking machine is large, a large installation space for the caulking machine is required. In addition, since the seven cylinders must be operated and controlled in association with each other in a series of steps of the caulking work, the control becomes troublesome and the caulking work becomes complicated, and the caulking work is surely and quickly performed. There is also the problem that it is difficult to do. Furthermore, since seven cylinders are used, there is a problem that the cost is high.
[0007]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an inexpensive caulking machine that can be formed compactly with a simple structure and that can be easily controlled.
Another object of the present invention is to provide a caulking method that can perform caulking work more simply, reliably and quickly.
[0008]
[Means for Solving the Problems]
  In order to solve the above-mentioned problem, the caulking machine of the invention of claim 1A work receiving unit which is provided on the body frame of the caulking machine so as to be movable up and down and holds the solenoid body of the solenoid;
  One cylinder that moves up the workpiece receiving unit by the extension operation of the piston and lowers the workpiece receiving unit by the pulling-in operation of the piston, and is disposed above the workpiece receiving unit and holds the cap The cap holding member to besolenoidBodyTheBetween the work receiving unitClampAt the same time, the clamp of the solenoid body is released by the downward movement of the workpiece receiving unit.A clamp member;Provided in the body frame of the caulking machine,solenoidThe cap assembled to the cap mounting portion of the main body is moved upward by the work receiving unit.A caulking mechanism,The cap assembled with the capsolenoidBodyTheBy downward movement of the work receiving unitA payout means for paying out,Due to the upward movement of the workpiece receiving unit by the extension operation of the piston of the cylinder, the clamp member clamps the solenoid body to the workpiece receiving unit and moves the clamped solenoid body upward to move the cap of the solenoid body Assemble into the mounting part, and further assemble with the cap crimped by the caulking mechanism with a spring contracted to the solenoid body,By the downward movement of the workpiece receiving unit due to the pulling-in operation of the piston of the cylinder, the clamping of the solenoid body to the workpiece receiving unit by the clamp member is released, and the solenoid body with the cap assembled thereto is removed by the discharging means. Dispensing from the work receiving unitIt is characterized by that.
[0009]
  In the caulking machine according to a second aspect of the present invention, the clamp member is connected to the work receiving unit and the solenoid.BodyDo not clamp the unclamped position and the solenoidBodyAnd a force transmission rod for moving the clamp member between the non-clamping position and the clamping position is provided movably with respect to the workpiece receiving unit. A clamping spring for constantly urging the force transmission rod in a direction in which the clamp member moves to the clamping position is provided between the workpiece receiving unit and the force transmitting rod, and the workpiece receiving unit is inoperative. A stopper column is provided that sometimes contacts the force transmission rod to place the clamp member in the unclamped position, and separates the clamp member from the force transmission rod during operation of the workpiece receiving unit. It is characterized by being.
[0010]
  Furthermore, the caulking machine of the invention of claim 3The caulking mechanism includes a cam that operates when the workpiece receiving unit moves upward, and a caulking member that caulks the cap by operating the cam.It is characterized by that.
[0011]
  Furthermore, the crimping machine of the invention of claim 4The discharge means includes an air pump that operates when the workpiece receiving unit moves downward to discharge air, and a discharge cylinder that operates when the air discharged from the air pump is supplied to tilt the posture of the solenoid.It is characterized by that.
[0012]
  Furthermore, the crimping machine of the invention of claim 5 isThe caulking mechanism has a cam that operates when the work receiving unit moves upward, and a caulking member that caulks the cap by the operation of the cam, and the discharging means operates when the work receiving unit moves downward to operate the air. An air pump that discharges the air and a discharge cylinder that is actuated by the supply of air discharged from the air pump and tilts the solenoid.It is characterized by that.
[0013]
  Furthermore, the crimping machine of the invention of claim 6 isThe caulking member is a caulking pin for caulking the cap by the rotation of the cam, and a C-shaped ring member for rotating the cam is provided, and the C-shaped ring member is provided when the work receiving unit is not operated. A pressing shaft that does not press the C-shaped ring member apart from the cam and rotates the cam by pressing the C-shaped ring member in contact with the C-shaped ring member during operation of the work receiving unit Is providedIt is characterized by that.
[0014]
  Furthermore, the crimping machine of the invention of claim 7 isThe solenoid is a linear solenoid used in an automatic transmissionIt is characterized by that.
[0015]
  Furthermore, the caulking method of the invention of claim 8 isA step of holding a solenoid body of a solenoid on a work receiving unit provided on a body frame of a caulking machine so as to be movable up and down; a step of holding a cap on a cap holding member above the solenoid body; and a piston of one cylinder The workpiece receiving unit is moved upward by extending, and the clamp member is operated by the upward movement of the workpiece receiving unit.solenoidBodyTheBetween the work receiving unitA clamping process for clamping;A step of causing the cap mounting portion of the solenoid body to enter the cap by further upward movement of the work receiving unit; and by operating the caulking mechanism by further upward movement of the work receiving unit.A caulking process in which a cap is caulked and assembled in a state where a spring is contracted to the solenoid body;The step of lowering the workpiece receiving unit by retracting the piston of the cylinder to separate the cap holding member from the cap assembled to the solenoid body, and the further downward movement of the workpiece receiving unit Clamp releasing step of releasing the operation of the member and releasing the clamp between the solenoid body and the workpiece receiving unit by the clamp member, and operating the discharging cylinder before and after the clamp releasing step. And a step of paying out the solenoid from the work receiving unit by a cylinder for use.It is characterized by that.
[0016]
[Operation and effect of the invention]
  According to the caulking machine of the invention of claims 1 to 7 configured as described above, a single cylinder is used.By moving the work receiving unit that holds the solenoid body of the solenoid up and down,By clamp memberThe solenoid bodyClampOperation and solenoid body clamp release operationAnd the caulking mechanismRuClamp the cap with the spring retracted on the solenoid body.ActionIs doneFurthermore, a solenoid dispensing operation for dispensing the solenoid body with the cap assembled from the workpiece receiving unit by the dispensing means is performed.As a result, the structure of the caulking machine can be simplified, and the caulking machine can be made compact and compact. Thereby, the installation space of a caulking machine can be reduced and space saving can be achieved reliably.
[0017]
  Also,In the caulking work in which the cap is assembled to the solenoid body and the solenoid body with the cap assembled is paid out, the above clamping operation, caulking operation, and dispensing operation are performed.Since it is only necessary to control the operation of only one cylinder, the control can be simplified. Moreover, since only one cylinder is used, the cost can be effectively reduced.
[0018]
  MoreActuated by cylinder and solenoidBodyThe workpiece receiving unit that holds the clamp member,Caulking mechanism, And payout meansSo that the solenoidBodyClamp member in relation to the position of,Caulking mechanism, And payout meansWill be able to operate. As a result, the clamp member for the solenoid,Caulking mechanism, And payout meansbyeachThe process can be performed more accurately.
[0019]
  MoreThe solenoid is a clamp member that is activated by the operation of the workpiece receiving unit.BodyThus, the clamping process can be more reliably performed with a simple structure of the clamping means.
[0020]
  Further claims3According to the caulking machine of the invention, the cam is rotated by the operation of the work receiving unit, and the caulking member is operated by the rotation of the cam.capTherefore, the caulking process can be performed more reliably with a simple structure of caulking means.
[0021]
  Further claims4According to the caulking machine of the invention, the air pump is operated to discharge air by the operation of the work receiving unit, and the discharging cylinder is operated by this air to operate the solenoidBodyThe payout process can be more reliably performed with a simple structure of the payout means.
[0022]
  Further claims5According to the crimping machine of the invention, the above-mentioned claim3As in the invention of the above, the caulking process can be performed more reliably with a simple structure of the caulking means, and the above-mentioned claims.4Similar to the invention, the payout process can be performed more reliably with a simple structure of the payout means.Furthermore, according to the caulking machine of the invention of claim 6, the caulking process can be more reliably performed with the simple structure of the caulking means, similarly to the invention of claim 3 described above.
[0023]
  Further claims7According to the caulking machine of the invention, since the linear solenoid of the automatic transmission can be caulked reliably and easily with a caulking machine having a simple structure, the linear solenoid can be manufactured quickly and inexpensively. Thereby, the cost of an automatic transmission can be reduced.
[0024]
  Furthermore, according to the caulking method of the invention of claim 8, the solenoidBodyClamping process to clamp, Cap on solenoid bodyCaulkingAssemblyThe caulking process, And the payout process for paying out the solenoid body with the cap assembledInto one cylinderTo move the workpiece receiving unit up and downTherefore, it is possible to perform the caulking work more easily and reliably and quickly.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows an example of an embodiment of a caulking machine and a caulking method according to the present invention, where (a) is a front view, (b) is a right side view, and (c) is a top view.
[0026]
As shown in FIGS. 1 (a) and 1 (b), the caulking machine 1 of this example is disposed at the right edge of the main body lower frame 2, the main body upper frame 3, and the caulking machine 1 when viewed from the right side. Below, two first and second support columns 4 and 5 for connecting the upper frames 2 and 3 together are provided. A cylinder 6 composed of one air cylinder is attached to the upper part of the main body lower frame 2.
[0027]
Two first and second guide pillars 7 and 8 are erected between the main body lower frame 2 and the main body upper frame 3 and are fixed to the upper frames 2 and 3 below the main body, respectively. The first and second guide columns 7 and 8 are provided with a work receiving unit 9 which is guided by the first and second guide columns 7 and 8 so as to be movable up and down and to be kept horizontal.
[0028]
2A and 2B show the workpiece receiving unit 9 and clamping means described later. FIG. 2A is a front view and FIG. 2B is a right side view. 2A shows the back surface of FIG. 1A, and FIG. 2B shows the left side of FIG. 1A.
As shown in FIGS. 2A and 2B, the work receiving unit 9 includes a unit main body 10 that is guided by the first and second guide pillars 7 and 8 and can move up and down, and a solenoid main body of the linear solenoid 11. 11a (shown in FIG. 3 to be described later) 11a (shown in FIG. 3) is inserted into the recess 12a to hold the work receiver 12, and the support body that supports the work receiver 12 and the support column erected on the unit body 10 It consists of and.
[0029]
The piston rod 6a of the cylinder 6 is connected to the unit main body 10 via a connecting member 14, and the workpiece receiving unit 9 is moved up and down by the extending and retracting operations of the piston rod 6a. ,
[0030]
Further, as shown in FIGS. 1A and 1B and FIGS. 2A and 2B, the caulking machine 1 of this example includes a clamping means 15 that clamps the solenoid body 11a between the work receiver 12 and the clamping body 15. It has.
[0031]
As shown in FIGS. 2A and 2B, the clamp means 15 is fixed to a crank-shaped clamp member 16 that clamps the solenoid body 11 a by pressing the work body 12 and the work support support member 13. A clamp member support member 17 that rotatably supports the clamp member 16 and a pin 18 that passes through the elongated hole 16a of the clamp member 16 and is movable along the elongated hole 16a rotate the upper end portion of the clamp member 16. A force transmission rod 19 that is freely connected and movably passes through the unit body 10 and extends below the unit body 10, a spring receiver 19 a provided at the lower end of the force transmission rod 19, and a lower surface of the unit body 10 And a clamp spring 20 that constantly urges the force transmission rod 19 downward, and an upper surface of the main body lower frame 2. The stopper column 21 is provided upright and prevents further downward movement of the force transmission rod 19 by contacting the lower end of the force transmission rod 19.
[0032]
As shown in FIGS. 2A, 2B and 3A, the piston rod 6a of the cylinder 6 is retracted to the maximum, and the unit body 10 (that is, the workpiece receiving unit 9) is set to the lower limit position. Then, the lower end of the force transmission rod 19 abuts against the stopper column 21, and the stopper column 21 moves the unit body 10 up to the maximum against the urging force of the clamping spring 20. In a state where the force transmission rod 19 is moved to the maximum with respect to the unit main body 10, the clamp member 16 is turned to the maximum upward position, and the clamp portion 16b of the clamp member 16 is greatly separated from the solenoid main body 11a. The solenoid body 11a is set to an unclamping position where the solenoid body 11a is not clamped. That is, the clamping means 15 is in an unclamped state.
[0033]
3B, when the piston rod 6a of the cylinder 6 is extended to the maximum and the unit body 10 is set to the upper limit position, the force transmission rod 19 has its lower end from the stopper column 21. By being separated, the unit main body 10 is moved downward by the urging force of the clamp spring 20. When the force transmission rod 19 is moved downward with respect to the unit main body 10, the clamp member 16 is turned downward, and the clamp portion 16b of the clamp member 16 is in the step portion 11a of the solenoid main body 11a.₁Is pressed downward by the urging force of the clamp spring 20. Thereby, the clamp member 16 is set to a clamp position for clamping the solenoid main body 11a with a relatively large clamping force between the workpiece receiver 12. That is, the clamp means 15 is in a clamped state.
[0034]
Further, as shown in FIGS. 1 (a) and 1 (b) and FIGS. 4 (a) and 4 (b), the caulking machine 1 of this example includes a cap mounting portion 11a of the solenoid body 11a.₂In order to assemble the cap 11b, a caulking means 22 for caulking the cap 11b is provided.
[0035]
As shown in FIG. 1C and FIGS. 4A and 4B, the caulking means 22 extends downward to the four caulking mechanisms 23, 24, 25, 26 and the lower surface of the main body upper frame 3. The two guide columns 27 and 28 erected in such a manner are guided by these guide columns 27 and 28 by passing through the guide holes 29a and 29b, respectively, and are provided so as to be movable up and down. A C-shaped ring member 29 for operating 24, 25, and 26, and an upright extending from the upper surface of the unit body 10 and corresponding to the four caulking mechanisms 23, 24, 25, and 26, respectively. The four pressing shafts that can press the C-shaped ring member 29 upward (in FIGS. 4A and 4B, only the two pressing shafts 30 and 31 respectively corresponding to the caulking mechanisms 23 and 26 are provided. Illustration; for the sake of convenience, other caulking mechanisms The two pressing shafts corresponding to 24 and 25 are also described using reference numerals 30 and 31}.
[0036]
Since the four caulking mechanisms 23, 24, 25, and 26 have the same configuration, the caulking mechanism 23 will be described, and the other caulking mechanisms 24, 25, and 26 are respectively used in the caulking mechanism 23. The subscripts a, b, c, d,... Of 23 are attached to the reference numerals 24, 25, and 26 for the corresponding members, and detailed description thereof is omitted.
[0037]
As shown in FIG. 1 (c), the caulking mechanism 23 includes a pair of support members 23a and 23b erected on the lower surface of the main body upper frame 3 at a predetermined interval, and FIG. 1 (c). As shown in FIG. 4 (c), the pin 23c laid between the support members 23a and 23b is rotatably supported, and the upward pressing force from the C-shaped ring member 29 is given a predetermined boosting force. A cam 23d that converts to a pressing force in the lateral direction {leftward in FIG. 4 (c)} boosted by a ratio (for example, 1: 2) and a pin support member 32 that is erected on the lower surface of the main body upper frame 3 Pin guide hole 32a {FIG. 1 (c) and FIGS. 4 (a), 4 (b), and 4 (c) show the pin support member 32 in a cross-section, and thus are illustrated like grooves. } And is freely movable and the cam surface 23d of the cam 23d.₁Pointed caulking portion 23e provided so as to be moved in the caulking direction (leftward in FIG. 4C).₁And a caulking pin return spring 23f that constantly urges the caulking pin 23e in a direction opposite to the caulking direction. The cam 23d is always rotated in a direction {clockwise in FIG. 4 (c)} that does not press the caulking pin 23e by its own weight.
[0038]
Similarly, the other caulking mechanisms 24, 25, and 26 have a pair of support members 24a and 24b; 25a and 25b; 26a and 26b, pins 24c, 25c, and 26c, and a cam surface 24d, respectively.₁, 25d₁, 26d₁Cams 24d, 25d, and 26d, and pin guide holes 32b, 32c, and 32d of the pin support member 32, respectively, and pointed caulking portions 24e.₁, 25e₁, 26e₁, And caulking pin return springs 24f, 25f, and 26f. Some of these codes are not shown.
[0039]
As shown in FIG. 4C, the C-shaped ring member 29 has four pressed parts that are respectively pressed by the pressing shafts 30 and 31 (corresponding to the caulking mechanism 23 in FIG. 4C). Only one pressed portion 29c is shown; hereinafter, for convenience of explanation, three pressed portions corresponding to the other caulking mechanisms 24, 25, and 26 will also be described using the reference numeral 29c}, and cams 23d and 24d , 25d, and 26d, respectively. FIG. 4 (c) shows only one pressing portion 29d corresponding to the caulking mechanism 23; hereinafter, for the convenience of explanation, the other caulking mechanisms 24, 25, and 26 are respectively shown. The corresponding three pressing portions will also be described using the reference numeral 29d} corresponding to the caulking mechanisms 23, 24, 25, and 26, respectively.
[0040]
The lower limit position of the C-shaped ring member 29 is defined by stoppers 27a and 28a provided at the lower ends of the guide columns 27 and 28, and when the pressing force is removed after the C-shaped ring member 29 is moved upward by the upward pressing force. It returns to the lower limit position by its own weight. In the non-operating state of the caulking means 22, the C-shaped ring member 29 is lowered by the stoppers 27a and 28a provided at the lower ends of the guide columns 27 and 28 as shown in FIGS. 1 (a), 1 (b) and 4 (a). Set to position.
[0041]
Further, as shown in FIGS. 4A and 4B, the main body upper frame 3 is provided with a cap holding member 33 for holding the cap 11b so as to penetrate the main body upper frame 3 and move up and down. The cap holding member 33 is provided with a vacuum introduction hole 33a, and the cap 11b is sucked and held at the lower end of the cap holding member 33 by the vacuum introduced into the vacuum introduction hole 33a from a vacuum source (not shown). It has become so. In this case, although not shown, the lower end of the cap holding member 33 is configured such that the center of the cap holding member 33 and the cap 11b coincide with each other in the vertical direction.
[0042]
Further, the upper and lower limit positions of the cap holding member 33 are defined by the vertical positioning member 34 fixed to the main body upper frame 3 and are always urged downward by the spring 35. When the cap holding member 33 is not in operation, the lower limit stopper 34a of the vertical positioning member 34 sets the lower limit position shown in FIG. At this lower limit position, the cap holding member 33 protrudes below the caulking pins 23e, 24e, 25e, and 26e through the gaps between the caulking pins 23e, 24e, 25e, and 26e that are in an inoperative state. . At this time, the tip caulking portion 23e of each caulking pin 23e, 24e, 25e, 26e₁, 24e₁, 25e₁, 26e₁Is configured not to contact the cap holding member 33.
[0043]
In the state where the cap holding member 33 is raised and set to the upper limit position shown in FIG. 4B by the vertical positioning member 34, the cap holding member 33 is in the non-operating state of the caulking pins 23e, 24e, 25e, The cap 11b held upward at the lower end of the cap holding member 33 is released upward from the gap between the pin 26e, and the caulking portions 23e of the caulking pins 23e, 24e, 25e, and 26e.₁, 24e₁, 25e₁, 26e₁It comes to oppose.
[0044]
The center axis of the cylinder 6, the center of the recess 12 a of the work receiver 12, and the center axis of the cap holding member 33 are arranged on the same straight line in the vertical direction. Therefore, the center of the solenoid main body 11 a that is fitted and held in the recess 12 a of the workpiece receiver 12, the center of the cap 11 b that is held by the cap holding member 33 so as to coincide with each other, and the center axis of the cylinder 6 Matches the vertical direction.
[0045]
Furthermore, as shown in FIGS. 1A and 1B and FIGS. 2A and 2B, the caulking machine 1 of this example is a linear solenoid 11 completed by assembling a cap 11b to a solenoid body 11a. Dispensing means 36 for dispensing the caulking machine 1 is provided.
[0046]
As shown in FIGS. 2 (a) and 2 (b), the payout means 36 is fixed to the upper surface of the lower frame 2 of the main body, and has an air pump 37 having an air supply piston 37a to which the principle of inflating a bicycle is applied, for example. A piston pushing rod 38 which is erected on the lower surface of the unit main body 10 so as to extend downward and can press the air supply piston 37a downward, and is provided on the workpiece receiver 12 as shown in FIG. The payout cylinder 39 having the payout piston 39a in which the piston rod protrudes into the recess 12a of the work receiver 12 and the linear mounted on the main body lower frame 2 corresponding to the work receiver 12 at the lower limit position. A payout chute 40 having an inclined surface for sliding the solenoid 11 and a cap 11 provided on the main body lower frame 2 and fed from the payout chute 40. The linear solenoid 11 to which b is assembled is composed of posture changing means 41 for setting the paying posture in consideration of the next process.
[0047]
The air supply piston 37a of the air pump 37 is always urged upward by a spring (not shown), and is set to the upper limit position shown in FIG. When the air supply piston 37 a is pressed downward by the piston pushing rod 38, the air supply piston 37 a is moved downward to supply the air in the air pump 37 to the discharge cylinder 39 through the pipe 42.
[0048]
Further, as shown in FIG. 5B, the centers of the discharge cylinder 39 and the discharge piston 39a are the centers of the recesses 12a of the workpiece receiver 12 (that is, the centers of the linear solenoids 11 held in the recesses 12a). Are disposed offset from the installation side of the payout chute 40 by a predetermined amount α.
[0049]
Furthermore, the dispensing piston 39a is set to the lower limit position shown in FIG. At this lower limit position, the dispensing piston 39a does not protrude into the recess 12a, and the solenoid body 11a of the linear solenoid 11 is stably held in a normal posture. The payout piston 39a is moved upward by the air supplied from the air pump 37 to the payout cylinder 39, protrudes into the recess 12a, and pushes up the linear solenoid 11 held in the recess 12a. At this time, since the payout cylinder 39 is offset as described above, the linear solenoid 11 is pushed up while being tilted toward the payout chute 40, and the posture of the linear solenoid 11 is broken to pay out to the payout chute 40. It has become.
[0050]
The posture changing means 41 includes a posture changing member 41b that is rotatably supported on the main body lower frame 2 by a fulcrum pin 41a. The posture changing member 41b includes a solenoid receiving portion 11b that receives the linear solenoid 11 sent from the payout chute 40.₁Is provided. A weight 41c is connected to the posture changing member 41b. The weight 41c is connected to the solenoid receiving portion 11b.₁When the linear solenoid 11 is not provided, the posture changing member 41b is rotated clockwise in FIG.₁Defines the attitude of the attitude changing member 41b so as to match the inclination angle of the payout chute 40, and the solenoid receiving portion 11b.₁When the linear solenoid 11 is present, the posture changing member 41b rotates in the reverse direction due to the weight of the linear solenoid 11, and the linear solenoid 11 is changed to the payout posture for the next process as shown in FIG. It is set to be the posture change position to be.
[0051]
Next, the operation of the caulking machine 1 configured in this way will be described.
When the caulking machine 1 is in an inoperative state shown in FIGS. 1A and 1B, the piston rod 6a of the cylinder 6 is retracted to the maximum, and the work receiving unit 9 is set to the lower limit position. Therefore, the clamping means 15 is in the non-clamping state shown in FIGS. 2A and 2B, and the caulking means 22 is in the non-operating state shown in FIG. 4A. The cap holding member 33 is at the lower limit position shown in FIG. Further, the piston pushing rod 38 pushes the air supply piston 37a to the maximum, the air supply piston 37a becomes the lower limit position, the air pump 37 is in an inoperative state, and the dispensing cylinder 39 is in an inoperative state. The dispensing piston 39a is in a fully retracted state. That is, the payout means 36 is in an inoperative state.
[0052]
In order to assemble the cap 11b to the solenoid body 11a in a non-operating state of the caulking machine 1, the solenoid body 11a is fitted and held in the recess 12a of the work receiver 12 as shown in FIG. The cap 11b is sucked and held on the lower surface of 33 by vacuum.
[0053]
Next, when air is supplied to the cylinder 6, the piston rod 6a extends upward. Then, the workpiece receiving unit 9 moves upward, and the force transmission rod 19 moves downward relative to the workpiece receiving unit 9 by the urging force of the clamping spring 20. That is, the workpiece receiving unit 9 moves up, but the force transmission rod 19 does not move up yet and is held in contact with the stopper column 21. The relative movement of the force transmission rod 19 with respect to the workpiece receiving unit 9 causes the clamp member 16 to rotate downward (that is, counterclockwise) in FIG.
[0054]
Further, since the piston pushing rod 38 is also moved upward by the upward movement of the workpiece receiving unit 9, the air supply piston 37a is moved upward by the biasing force of the spring. Thereby, atmospheric pressure air is sucked into the air pump 37.
[0055]
When the workpiece receiving unit 9 further moves upward due to further extension of the piston rod 6a, the clamp portion 16b of the clamp member 16 is moved to the step portion 11a of the solenoid body 11a.₁Abut. Thereafter, since the clamp member 16 does not rotate in the same direction, the relative movement of the force transmission rod 19 with respect to the work receiving unit 9 stops.
[0056]
When the workpiece receiving unit 9 further moves upward due to further extension of the piston rod 6a, the transmission rod 19 is separated from the stopper column 21 as shown in FIG. In this state, the solenoid body 11 a is clamped between the clamp portion 16 b of the clamp member 16 and the workpiece receiver 12 with a clamping force based on the urging force of the clamping spring 20. Thus, the clamping process of the solenoid body 11a is performed.
[0057]
In parallel with this clamping step, the piston pushing rod 38 is separated from the air supply piston 37a, the air supply piston 37a becomes the upper limit position, and the maximum amount of air is sucked into the air pump 37. It is.
[0058]
Next, with the solenoid body 11a clamped by the clamping means 15 as described above, when the piston rod 6a further extends and the workpiece receiving unit 9 further moves upward, the cap mounting portion 11a of the solenoid body 11a.₂Gradually approaches the cap 11 b held on the lower surface of the cap holding member 33.
[0059]
When the workpiece receiving unit 9 further moves upward due to further extension of the piston rod 6a, the cap mounting portion 11a₂Enters the cap 11b, and the cap 11b is connected to the cap mounting portion 11a.₂Then, the cap 11 b and the cap holding member 33 are lifted with the upward movement of the work receiving unit 9.
[0060]
Then, the press shafts 30 and 31 are connected to the C-shaped ring 29 at the same time that the work receiving unit 9 moves up to a position where the lower end of the cap holding member 33 faces the caulking pins 23e, 24e, 25e, and 26e. It abuts on the pressed portion 29c. When the workpiece receiving unit 9 is further moved upward, the pressing shafts 30 and 31 press the C-shaped ring 29 via the pressed portion 29c, so that the C-shaped ring 29 is connected to the cams 23d, 24d, and 24 via the pressing portion 29d. 25d and 26d are rotated in the caulking direction, and the caulking pins 23e, 24e, 25e and 26e are moved in the caulking direction. At this time, the cap 11 is located at a position facing the caulking pins 23e, 24e, 25e, and 26e, and the cap holding member 33 is almost at the upper limit position.
[0061]
The cams 23d, 24d, 25d, and 26d further rotate in the caulking direction by further upward movement of the work receiving unit 9, and the caulking pins 23e, 24e, 25e, and 26e move in the caulking direction and abut against the cap 11b. The caulking portion 23e of them₁, 24e₁, 25e₁, 26e₁Then, the cap 11b is caulked at four points. The caulking force at this time is a large force obtained by boosting the pressing force of the piston rod 6a of the cylinder 6 by the cams 23d, 24d, 25d, and 26d at a predetermined boost ratio. Thereby, the cap 11b is assembled | attached to the solenoid main body 11a. Thus, the caulking process of the cap 11b is performed.
At this time, the cap holding member 33 is at the upper limit position. The rotation of the cams 23d, 24d, 25d, and 26d and the movement of the caulking pins 23e, 24e, 25e, and 26e for the caulking operation are a slight amount. At this time, the atmosphere is introduced into the vacuum introduction hole 33a, and the holding of the cap 11b by the cap holding member 33 is released.
[0062]
Next, the air supplied to the cylinder 6 is discharged, and the air is supplied to the cylinder 6 on the opposite side, whereby the piston rod 6a is retracted. Then, since the workpiece receiving unit 9 moves downward, the linear solenoid 11 assembled with the pressing shafts 30 and 31 and the cap 11b moves downward.
[0063]
As a result, the C-shaped ring 29 is moved down by its own weight, and the cams 23d, 24d, 25d, and 26d are driven by their own weight in the non-operating direction that is clockwise in FIG. ) And the caulking pins 23e, 24e, 25e, 26e are moved in the non-operating direction (that is, the direction opposite to the caulking direction) by the urging force of the caulking pin returning springs 23f, 24f, 25f, 26f. However, the caulking pins 23e, 24e, 25e, and 26e are separated from the cap 11b. Further, the cap holding member 33 is moved downward together with the downward movement of the linear solenoid 11 by its own weight and the urging force of the spring 35.
[0064]
When the workpiece receiving unit 9 further moves downward by further pulling of the piston rod 6a and the C-shaped ring 29 and the cap holding member 33 reach the lower limit position, the downward movement of the C-shaped ring 29 and the cap holding member 33 stops. The pressing shafts 30 and 31 are separated from the pressed portion 29 c of the C-shaped ring 29, and the cap 11 b of the linear solenoid 11 is separated from the cap holding member 33. Thus, the clamping means 22 is in an initial inactive state.
[0065]
When the workpiece receiving unit 9 is further moved downward by further pulling of the piston rod 6 a, the transmission rod 19 comes into contact with the stopper column 21, and then the transmission rod 19 is moved up relatively with respect to the workpiece receiving unit 9. Thereby, the clamp member 16 rotates in the non-operation direction which is clockwise in FIG. 3B, and the clamp portion 16b is the step portion 11a of the solenoid body 11a.₁Separate from. Thus, the clamping of the solenoid body 11a by the clamping means 15 is released.
[0066]
In parallel with the release of the clamp of the solenoid body 11a by the clamp means 15, the piston pushing rod 38 comes into contact with the air supply piston 37a and pushes the air supply piston 37a. The pushing force of the air supply piston 37a by the piston pushing rod 38 at this time is a force based on the drawing force of the piston rod 6a of the cylinder 6.
[0067]
As a result, the air supply piston 37 a moves downward, so that air sucked into the air pump 37 is discharged from the air pump 37 and supplied to the discharge cylinder 39 through the pipe 42. Then, the payout piston 39a protrudes into the recess 12a, and moves the linear solenoid 11 held in the recess 12 in a direction to escape from the recess 12, that is, upward.
[0068]
When the workpiece receiving unit 9 is further moved down to the initial lower limit position, the clamping means 15 is in the initial unclamped state shown in FIG. Further, the air supply piston 37 a is pushed to the maximum, and almost all the air sucked into the air pump 37 is supplied to the discharge cylinder 39. As a result, the payout piston 39a protrudes maximally into the recess 12a to cause the linear solenoid 11 to escape from the recess 12a, and at the same time, the posture is inclined toward the payout chute 40.
[0069]
Then, the linear solenoid 11 falls on the payout chute 40 and slides along the inclined surface of the payout chute 40, moves onto the posture changing member 41b of the posture changing means 41, and stops by a stopper (not shown). Thus, the linear solenoid 11 is the solenoid receiving portion 11b of the posture changing member 41b.₁Placed on top. Then, the posture changing member 41b is rotated by the weight of the linear solenoid 11 and set to the posture changing position shown in FIG. As a result, the posture of the linear solenoid 11 is changed to a payout posture for the next process. Then, when the linear solenoid 11 is removed from the posture changing member 41b for the next step, the posture changing member 41b is rotated clockwise in FIG. 5B by the weight 41c, and on the inclined surface of the payout chute 40. Set to the matching position.
[0070]
On the other hand, after the linear solenoid 11 falls on the payout chute 40, the inside of the air pump 37 becomes atmospheric pressure, so that the inside of the payout cylinder 39 also becomes atmospheric pressure. As a result, the payout piston 39a moves downward due to its own weight, reaches the lower limit position shown in FIG. 5A, and does not protrude into the recess 12a.
Thus, the caulking machine 1 is in the initial inactive state.
[0071]
Thus, in the caulking machine 1 of this example, the clamping process for clamping and releasing the solenoid body 11a, the caulking process for caulking and releasing the caulking of the cap 11b, and the linear solenoid 11 are delivered to the payout chute 40. The payout process is all performed by one cylinder 6.
[0072]
According to the caulking machine 1 of this example, since the three processes of the clamping process, the caulking process, and the paying process are performed using one cylinder 6, the structure of the caulking machine 1 can be simplified, The crimping machine 1 can be formed small and compact. Thereby, the installation space of a caulking machine can be reduced and space saving can be achieved reliably.
[0073]
Further, since only one cylinder 6 needs to be controlled in the above-described series of steps of the caulking operation, the control can be simplified. In addition, since only one cylinder 6 is used, the cost can be effectively reduced.
[0074]
Further, since the work receiving unit 9 operated by the cylinder 6 and holding the solenoid body 11a operates the three means of the clamping means 15, the caulking means 22, and the paying means 36, the position of the solenoid body 11a It becomes possible to operate these three means in relation to Thereby, the process by the above-mentioned three means with respect to the solenoid main body 11a can be performed more correctly.
[0075]
Furthermore, since the solenoid body 11a is clamped by the clamp member 16 that is activated by the operation of the workpiece receiving unit 9, the clamping process can be performed more reliably with a simple structure of the clamping means 15.
[0076]
Further, the cams 23d, 24d, 25d, and 26d are actuated by the operation of the work receiving unit 9, and the caulking pins 23e, 24e, 25e, and 26e that are caulking members are actuated by the actuation of these cams 23d, 24d, 25d, and 26d. Since the cap 11b is caulked, the caulking process can be performed more reliably with the simple structure of the caulking means 22.
[0077]
Further, since the air pump 37 is operated by the operation of the work receiving unit 9 to discharge air, and the discharging cylinder 39 is operated by this air to discharge the linear solenoid 11, the simple structure of the discharging means 36 is achieved. Thus, the payout process can be performed more reliably.
[0078]
Furthermore, since the linear solenoid 11 of the automatic transmission can be securely and easily caulked by the caulking machine 1 having a simple structure, the linear solenoid 11 can be manufactured quickly and inexpensively. Thereby, the cost of an automatic transmission can be reduced.
[0079]
Furthermore, the three steps of the clamping process for clamping the workpiece, the caulking process for caulking the work, and the discharging process for discharging the work are performed by one cylinder 6, so that the caulking work can be made easier and more reliable. And can be done quickly.
[0080]
In the above-described example, the case of caulking in the lateral direction as shown in FIGS. 1A and 4A has been described, but the present invention is not limited to this, and for example, caulking force By appropriately setting the shape of the cam that generates the above, it can be applied to the case of caulking in the vertical direction or in the oblique direction in these drawings.
[0081]
In the above example, one cylinder 6 is used to perform the three steps of the clamping step, the caulking step, and the dispensing step. However, the present invention includes at least two of these three steps. It is also possible to perform one process using a single cylinder.
[0082]
Further, in the above-described example, the caulking machine of the present invention is described as applied to caulking of a linear solenoid used in an automatic transmission, but the present invention is not limited to this, and the parts (workpieces) are not limited thereto. As long as it is caulking, it can be applied to caulking work of any part (work).
[Brief description of the drawings]
FIG. 1 shows an example of an embodiment of a caulking machine and a caulking method according to the present invention, where (a) is a front view, (b) is a right side view, and (c) is a top view.
2A and 2B show a work receiving unit and clamping means of the caulking machine of the example shown in FIG. 1, wherein FIG. 2A is a front view, and FIG. 2B is a right side view.
3A and 3B illustrate the operation of the clamping means in the caulking machine of the example shown in FIG. 1, wherein FIG. 3A is a diagram illustrating an unclamped state, and FIG. 3B is a diagram illustrating a clamped state.
FIG. 4 explains caulking means and its operation in the caulking machine of the example shown in FIG. 1, wherein (a) shows a non-operating state, (b) shows an operating state, and (c) shows a clamping mechanism. FIG.
FIGS. 5A and 5B are diagrams illustrating a payout unit and its operation in the caulking machine of the example shown in FIG. 1, wherein FIG. 5A is a diagram illustrating a non-actuated state, and FIG. 5B is a diagram illustrating an actuated state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Caulking machine, 2 ... Main body lower frame, 3 ... Main body upper frame, 6 ... Cylinder, 6a ... Piston rod, 9 ... Work receiving unit, 10 ... Unit main body, 11 ... Linear solenoid, 11a ... Solenoid main body, 11a₁... Step, 11a₂DESCRIPTION OF SYMBOLS ... Cap attaching part, 11b ... Cap, 12 ... Work receptacle, 12a ... Recess, 15 ... Clamp means, 16 ... Clamp member, 16b ... Clamp part, 19 ... Force transmission rod, 20 ... Clamp spring, 21 ... Stopper pillar, 22 ... caulking means, 23, 24, 25, 26 ... caulking mechanism, 30, 31 ... pressing shaft, 23d, 24d, 25d, 26d ... cam, 23e, 24e, 25e, 26e ... caulking pins, 23f, 24f, 25f, 26f: Caulking pin return spring, 29 ... C-shaped ring member, 33 ... Cap holding member, 36 ... Discharge means, 37 ... Air pump, 37a ... Air supply piston, 38 ... Piston pushing rod, 39 ... Discharge cylinder 39a... Piping for dispensing, 40... Chute for dispensing, 41.

Claims (8)

A work receiving unit which is provided on the body frame of the caulking machine so as to be movable up and down and holds the solenoid body of the solenoid;
One cylinder that moves up the workpiece receiving unit by an extension operation of the piston and moves down the workpiece receiving unit by an operation of retracting the piston;
A cap holding member disposed above the workpiece receiving unit and holding the cap;
A clamping member with clamping, releasing the clamping of the solenoid body by downward movement of the work receiving unit between the workpiece receiving upward by the solenoid body said workpiece receiving unit of the unit,
And crimping the crimping mechanism by said provided on the body frame of the crimping machine, the upward movement of the workpiece receiving unit to the cap assembled to the cap mounting portion of the solenoid body,
Dispensing means for dispensing the solenoid body with the cap assembled thereto by lowering the work receiving unit ;
With
Due to the upward movement of the workpiece receiving unit due to the extension operation of the piston of the cylinder, the clamp member clamps the solenoid body to the workpiece receiving unit and moves the clamped solenoid body upward to move the cap of the solenoid body The clamp member is inserted into the mounting portion, and the cap is caulked by the caulking mechanism, and the solenoid body is assembled in a state where a spring is contracted. A caulking machine which releases the clamp of the solenoid body to the work receiving unit and pays out the solenoid body, to which the cap is assembled, from the work receiving unit by the discharging means . The clamping member to said workpiece receiving unit movably provided between a clamping position for clamping the solenoid body and a non-clamping position without clamping the solenoid body,
A force transmission rod for moving the clamp member between the non-clamping position and the clamping position is provided movably with respect to the workpiece receiving unit;
A clamp spring that constantly biases the force transmission rod in a direction in which the clamp member moves to the clamp position is provided between the work receiving unit and the force transmission rod;
When the work receiving unit is not operated, the clamp member is brought into the unclamped position by contacting the force transmitting rod, and when the work receiving unit is operated, the clamp member is moved away from the force transmitting rod to the clamp position. crimping machine of claim 1, wherein the stopper pillars, characterized in that provided for. 3. The caulking machine according to claim 1, wherein the caulking mechanism includes a cam that operates when the workpiece receiving unit moves upward , and a caulking member that caulks the cap by the operation of the cam. The discharging means includes an air pump that operates when the workpiece receiving unit is moved downward to discharge air, and a discharging cylinder that operates when the air discharged from the air pump is supplied to tilt the posture of the solenoid body. The caulking machine according to claim 1, further comprising: The crimping mechanism includes a cam that operates in upward movement of the workpiece receiving unit, and a caulking caulking member said cap by operation of the cam,
The discharging means includes an air pump that operates when the workpiece receiving unit is moved downward to discharge air, and a discharging cylinder that operates when the air discharged from the air pump is supplied to tilt the posture of the solenoid body. crimping machine as claimed in any one of claims 1 to 3, characterized in that it has. The caulking member is a caulking pin that caulks the cap by rotating the cam;
A C-shaped ring member for rotating the cam is provided;
The C-shaped ring member is not separated from the C-shaped ring member when the work receiving unit is not operated and does not press the C-shaped ring member, and is in contact with the C-shaped ring member when the work receiving unit is operated. The caulking machine according to claim 3 or 5 , further comprising a pressing shaft that rotates the cam by pressing a member. The caulking machine according to any one of claims 1 to 5 , wherein the solenoid is a linear solenoid used in an automatic transmission. A step of holding a solenoid body of a solenoid in a work receiving unit provided in a body frame of a caulking machine so as to be movable up and down;
Holding the cap on the cap holding member above the solenoid body;
A step of moving the workpiece receiving unit upward by extending a piston of one cylinder;
A clamping step of operating a clamp member by the upward movement of the workpiece receiving unit and clamping the solenoid body between the workpiece receiving unit and the clamp member ;
A step of causing the cap mounting portion of the solenoid body to enter the cap by further upward movement of the work receiving unit;
A caulking step in which the caulking mechanism is operated by further upward movement of the work receiving unit, and a cap is caulked and assembled in a state where a spring is contracted to the solenoid body by the caulking mechanism ;
Pulling down the piston of the cylinder to lower the work receiving unit and separating the cap holding member from the cap assembled to the solenoid body;
A clamp releasing step of releasing the clamp between the solenoid body and the work receiving unit of the solenoid body by releasing the operation of the clamp member by further downward movement of the work receiving unit;
A step of operating a discharge cylinder before and after the clamp release step, and a step of discharging the solenoid from the work receiving unit by the discharge cylinder;
Crimping method characterized by comprising a.

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