JP6091258B2 - Clamper with cutting blade of winding machine - Google Patents

Description

  The present invention relates to a clamper with a cutting blade that cuts while cutting a remaining wire after winding a wire in a winding machine for manufacturing a winding component.

In the conventional winding machine, the remaining wire (for example, enameled wire) after winding is clamped and cut by four operations.
Action 1: The clamper clamps the extra line.
Action 2: The nipper moves from the original position to the tangent line.
Action 3: The nipper closes and cuts off the remaining line.
Action 4: The nipper returns to the original position.
For this reason, a plurality of actuators for driving the operation parts such as the clamper and the nippers are required, which is expensive and has a production tact. In addition, since the space for each operating part is required, the facility becomes large and adjustment of each operating part becomes difficult. If the adjustment is made incorrectly, the operating part may collide and be damaged.

  On the other hand, for example, Patent Document 1 proposes a clamper with a cutter that cuts while cutting the extra line. This cutter-equipped clamper has a cylindrical holder, a rod that can move up and down in the holder and has a large diameter portion at the lower end, a cylindrical pressing element attached to the rod, and a pressing element that urges the pressing element downward. A first spring; a second spring that urges the rod upward; and an upper blade that is provided at the lower end of the holder and meshes with the large-diameter portion of the rod. When the force that pushes down the rod is released, the rod starts to rise with the elasticity of the second spring, clamps with the elasticity of the first spring with an extra line between the large diameter part and the pressing element, and the large diameter part And the upper blade mesh with each other to cut the trailing line.

JP 2007-36087 A

  The clamper with a cutter disclosed in Patent Document 1 requires a space for accommodating a spring, and also requires a drive mechanism that pushes down the rod against the elasticity of the spring, so that it is difficult to reduce the size and weight. .

  The present invention has been made to solve the above-described problems, and an object of the present invention is to reduce the size and weight of a clamper with a cutting blade that cuts while cutting the extra line of a winding machine.

A clamper with a cutting blade of a winding machine according to the present invention includes a cylindrical member having a blade projecting from an end surface thereof, a rod that is inserted into the cylindrical member, and one end of which protrudes from an end surface from which the blade of the cylindrical member projects. An air cylinder that reciprocally drives the rod in the axial direction, and is formed at one end on the protruding side of the rod with a larger diameter than the rod, and when the air cylinder pulls the rod into the cylindrical member, the wire is pressed against the end face of the cylindrical member A clamp part that cuts the blade while clamping, and the protruding amount of the blade from the end face of the cylindrical member is smaller than the wire diameter of the wire, and the clamp part clamps the wire in a state of being pressed and crushed against the end face of the cylindrical member It is.

According to this invention, when the blade protrudes from the end surface of the cylindrical member and the air cylinder pulls the rod into the cylindrical member, the clamp portion formed at one end of the rod presses the wire rod against the end surface of the cylindrical member. Since the blade is cut while being clamped in the crushed state , the winding wire can be cut while being clamped with one operation of the air cylinder, and the clamper with the cutting blade can be reduced in size and weight. In addition, the wire can be securely clamped.

It is the schematic which shows the structure of the clamper with a cutting blade which concerns on Embodiment 1 of this invention. It is sectional drawing which cut | disconnected the clamper with a cutting blade along the AA line of FIG. It is an enlarged view of the clamp part of FIG. 1 and its periphery, and shows a mode that a remainder line is clamped. It is an enlarged view of the clamp part of FIG. 1 and its periphery, and shows a mode that a remainder line is cut. It is an assembly drawing which shows the manufacture example of the clamper with a cutting blade which concerns on Embodiment 1, FIG. 5 (a) is a top view, FIG.5 (b) is a front view. 6A and 6B are enlarged views of the clamp portion and its periphery, FIG. 6A is a plan view, FIG. 6B is a front view, and FIG. 6C is a side view. It is a figure explaining the operation example of the winding machine to which the clamper with a cutting blade shown in FIG. 5 is applied, FIG. 7 (a) is a plan view, FIG. 7 (b) is a front view, and FIG. 7 (c) is a side view. It is. It is a figure explaining a mode that the clamper with a cutting blade shown in FIG. 5 cuts a remainder line.

Embodiment 1 FIG.
FIG. 1 is a schematic view showing a configuration of a clamper 1 with a cutting blade according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view of the clamper 1 with a cutting blade cut along an AA line. This clamper 1 with a cutting blade is applied to a winding machine for manufacturing a winding part used for an EGR (Exhaust Gas Reciprocation) valve motor and the like, and is used for cutting a remaining wire after winding a wire. It is.

  As shown in FIG. 1, a clamper 1 with a cutting blade includes a cylindrical member 4 having a blade 3 protruding from an end surface 2, a rod 5 inserted through the cylindrical member 4, and one end protruding from the end surface 2, and a piston 6. The air cylinder 7 is connected to the rod 5 and driven to reciprocate in the X-axis direction, and the clamp portion 8 is formed at one end on the protruding side of the rod 5 and has a larger diameter than the rod 5. The clamp portion 8 is connected to the piston 6 of the air cylinder 7 via the rod 5 and moves in accordance with the reciprocating motion of the piston 6.

3 and 4 are enlarged views of the clamp portion 8 and its periphery.
When clamping the extra wire 10 such as an enamel wire, the winding machine hooks the extra wire 10 onto the rod 5 and the air cylinder 7 pulls the rod 5 into the cylindrical member 4 (in the direction of arrow B in FIG. 3). Then, since the clamp part 8 hooks the extra line 10 and presses it against the end surface 2 of the cylindrical member 4, the extra line 10 is clamped between the clamp part 8 and the end face 2. At this time, the blade 3 protruding from the end face 2 cuts the extra line 10. Therefore, the extra wire 10 can be clamped and cut by one operation of pulling the rod 5.

  In this clamper 1 with a cutting blade, it is preferable to make the protrusion amount L1 of the blade 3 smaller than the wire diameter L2 of the extra wire 10. Thereby, when the clamp part 8 clamps the extra line 10, as shown in FIG. 4, a cut will be performed in the state clamped by pressing to the end surface 2 to such an extent that the extra line 10 is crushed a little.

5A and 5B are assembly views of the clamper 1 with a cutting blade that is specifically manufactured. FIG. 5A is a plan view and FIG. 5B is a front view. FIG. 6 is an enlarged view of the clamp portion 8 and its periphery, FIG. 6 (a) is a plan view, FIG. 6 (b) is a front view, and FIG. 6 (c) is a side view. 5A and 6A show a partially cut surface of the clamper 1 with a cutting blade.
In this example, one end of the rod 5 and the piston 6 are connected using a joint 11 and a spring pin 12. Further, when the rod 5 moves in accordance with the reciprocating motion of the piston 6 of the air cylinder 7, the cylindrical member 4 plays a role of guiding the rod 5. The moving speed of the piston 6 can be adjusted by the speed controllers 13 and 14 of the air cylinder 7.

  In addition, the blade 3 and the cylindrical member 4 are separate components, and the blade 3 is fixed to the tip of the cylindrical member 4 using screws 15. It is desirable that the blade 3 is made of a material having hardness that is resistant to wear. However, the selection of the material requires consideration of the material of the clamp portion 8 that contacts the blade 3 and the material of the cut wire 10 to be cut. is there. In the case of this configuration, since the blade 3 and the cylindrical member 4 are separate parts, the blade 3 can be replaced according to the material of the extra line 10. Further, it can be replaced when the blade 3 is worn.

  Moreover, since the position which fixes the blade 3 can be changed, the protrusion amount L1 of the blade 3 from the end surface 2 can be adjusted easily. Therefore, by adjusting the protrusion amount L1 of the blade 3 according to the wire diameter of the extra wire 10, the clamping and cutting timings are adjusted so that the extra wire 10 can be cut with the blade 3 after being securely clamped with the clamp portion 8. Adjustable.

Here, the operation example of the winding machine to which the clamper 1 with a cutting blade shown in FIGS. 5 and 6 is applied will be described.
7 is a view showing a state after winding of the clamper 1 with a cutting blade and its surroundings in the winding machine, FIG. 7A is a plan view, FIG. 7B is a front view, FIG. (C) is a side view. FIG. 8 is a plan view showing the clamper 1 with a cutting blade and a state after cutting a margin line around it. 7A and 8 show a partially cut surface of the clamper 1 with a cutting blade. Although illustration of the whole winding machine is abbreviate | omitted, the clamper 1 with a cutting blade, the holder 21, and the nozzle 22 are assembled | attached to this winding machine.

The workpiece 20 is installed on the holder 21 of the winding machine, and the wire 22 is wound around the workpiece 20 while the nozzle 22 moves around the workpiece 20. 7 and 8 illustrate a motor core as an example of the workpiece 20, and shows a cut surface of the wire 23 wound around the workpiece 20.
As shown in FIG. 7, after the winding of the wire 23, the nozzle 22 hooks the extra wire 10 on the rod 5 of the clamper 1 with a cutting blade. Thereafter, the rod 5 is pulled in by the air cylinder 7 and the blade 3 is cut while the clamp portion 8 clamps the extra wire 10. As shown in FIG. 8, the extra line 10 on the workpiece 20 side is cut, and the extra line 10 is connected between the clamper 1 with the cutting blade and the nozzle 22. Thereafter, the holder 21 rotates around the rotation axis Y to rotate the workpiece 20, and the nozzle 22 can continuously wind the wire 23 around the adjacent core.

As described above, according to the first embodiment, the clamper 1 with the cutting blade is inserted into the cylindrical member 4 with the blade 3 projecting from the end surface 2 and the cylindrical member 4, and the blade 3 of the cylindrical member 4 has one end thereof. The rod 5 projecting from the projecting end face 2, the air cylinder 7 for reciprocating the rod 5 in the axial direction X, and one end on the projecting side of the rod 5 having a larger diameter than the rod 5, When the rod 5 is drawn into the cylindrical member 4, the clamp 10 is configured to cut the blade 3 while pressing and clamping the extra line 10 against the end surface 2 of the cylindrical member 4.
For this reason, the pulling operation of the rod 5 by the air cylinder 7 makes it possible to perform the clamping operation and the cutting operation at the same time, and it is necessary to individually operate the clamper, nipper, etc. as in the conventional four operations described above. The production tact can be shortened.
Further, the spring, the drive mechanism for pushing down the rod, and the like that operate the clamper as described in Patent Document 1 are not necessary, and the number of actuators that drive each operation unit can be reduced. Thereby, the clamper 1 with a cutting blade can be reduced in size and weight, and since the structure of a winding machine can be simplified, adjustment of each operation | movement part becomes easy.
Further, the production cost can be reduced by shortening the production tact, simplifying the adjustment by simplifying the structure, and reducing the number of actuators.

  In addition, according to the first embodiment, the protruding amount L1 of the blade 3 from the end surface 2 of the cylindrical member 4 is configured to be smaller than the wire diameter L2 of the extra line 10, so that the extra line is provided between the end surface 2 and the clamp portion 8. 10 can be cut in a clamped state.

  In addition, according to the first embodiment, the blade 3 is configured as a separate part from the cylindrical member 4 so that the protruding amount L1 can be adjusted, so that the cutting can be performed after the extra line 10 is securely clamped. And cut timing can be adjusted.

  In the first embodiment, the air cylinder 7 is used as an example of an actuator for reciprocatingly driving the clamp unit 8. However, the present invention is not limited to this, and for example, an electrically controlled actuator may be used.

  In the present invention, any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted within the scope of the invention.

  1 Clamper with cutting blade, 2 end face, 3 blades, 4 cylindrical member, 5 rod, 6 piston, 7 air cylinder, 8 clamp part, 10 remainder line, 11 joint, 12 spring pin, 13, 14 speed controller, 15 screw, 20 workpieces, 21 holders, 22 nozzles, 23 wires.

Claims (2)

A cylindrical member having a blade projecting from its end face;
A rod that is inserted through the cylindrical member, one end of which protrudes from an end surface on which the blade of the cylindrical member protrudes;
An air cylinder for reciprocating the rod in the axial direction;
The rod is formed with a larger diameter than the rod at one end on the protruding side of the rod, and when the air cylinder pulls the rod into the cylindrical member, the wire is pressed against the end surface of the cylindrical member and cut into the blade while being clamped and a clamp portion which,
With a cutting blade, wherein the protruding amount of the blade from the end surface of the cylindrical member is smaller than the wire diameter of the wire, and the clamp portion clamps the wire in a state of being pressed and crushed against the end surface of the cylindrical member Clamper. The blade, winding machine of the cutting blade with a clamper according to claim 1, wherein the the said cylindrical member is adjustable to the amount of projection is composed of separate parts.

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