JP5009738B2 - Pressurizing device and pressurizing method - Google Patents

Description

  The present invention relates to an apparatus and a method for pressurizing an object to be pressed.

  2. Description of the Related Art In a pressurizing apparatus that crimps components such as electronic components to a substrate, for example, an IC (Integrated Circuit) chip, a TCP (Tape Carrier Package), a COF (COF) is connected to an electrode terminal of a display panel such as a liquid crystal display or a plasma display that is a panel substrate. Components such as Chip On Film (FPC) and FPC (Flexible Printed Circuits) are electrically connected to the peripheral portion of the display panel. An ACF tape (Anisotropic Conductive Film) is used for connection between the terminal of the electrode of the display panel and the component to be mounted.

  In the production of a display panel (hereinafter referred to as “substrate”), first, an ACF tape is mounted on a substrate such as a glass plate having electrode terminals. Next, the component is mounted on the mounted ACF tape, and finally crimped so that the ACF tape and each electronic component are electrically connected.

  The main crimping is a process of sandwiching the ACF tape together with the substrate and components to be mounted at a time, temperature and pressure corresponding to the ACF tape, and is performed in the crimping apparatus. Here, the conditions for pressure bonding such as the sandwiching time, temperature, and pressure are determined by the type and size of the ACF tape.

  Today, liquid crystal displays are used in various products ranging from small products such as mobile phones and portable terminals to large products such as liquid crystal televisions. For this reason, various conditions are required also in the pressure bonding, and the pressing force is, for example, from a weak pressing force of about several hundred grams to a strong pressing force of about several tens of kilograms.

  In the crimping apparatus, a substrate is placed on a receiving portion that supports the substrate and the like from below, and an ACF tape and a component to be crimped are arranged on the peripheral portion of the substrate via the ACF tape. And are attached. When the pressing head is brought into contact with the component from above the substrate, the substrate, the ACF tape, and the component are sandwiched between the base and the pressing head, and pressed by the pressure of the pressing head that pressurizes the component from above. Is done. Thereby, the ACF tape is partially conducted and cured, and the component is pressure-bonded to the substrate.

  The time for pressing for pressure bonding is adjusted by the time for pressing the pressing head, and the temperature for pressing is adjusted by the heating temperature of the pressing head. For this reason, the pressing head has a heater, and the weight of the pressing head and the part that is integrated with the pressing head and presses the component against the substrate via the ACF tape (hereinafter referred to as “pressing body”) is usually It weighs about 2-3 kilograms.

  Further, the pressure applied when pressing is adjusted by a fluid cylinder that applies pressure to the pressing body.

  However, as described above, the weight of the pressing body itself is about 2 to 3 kilograms. When the pressure at the time of pressing is a weak pressing force such as 1 kilogram, for example, the pressure object is excessively pressurized only by the weight of the pressing body itself.

  Therefore, conventionally, a crimping device having a mechanism for canceling the weight of the pressing body itself has been proposed (see, for example, Patent Document 1).

  FIG. 8 is a side view showing an example of a conventional crimping apparatus.

  The pressing body (pressurizing unit) 2 is a part that presses the pressurizing object W placed together with the panel P on the stage 12, and includes an air cylinder 10 that is a pressurizing mechanism and a piston of the air cylinder 10. An output shaft 11 connected to the (drive) rod and a pressing (crimping) head 50 provided at the tip of the output shaft 11 are provided.

  In addition, the crimping apparatus shown in the drawing is configured to calculate the equivalent weight of the crimping head 50 in the pressure applied to the pressurizing object W when the pressing (crimping) head 50 moves forward toward the pressurizing object W. A self-weight canceling mechanism 3 for reducing the weight is provided.

  The self-weight canceling mechanism 3 holds the spring member 60 that reduces the weight of the crimping head 50 itself, the support plate 25 that holds one end of the spring member 60, and the other end of the spring member 60. And an adjusting member 61 to be locked.

  The length of the spring member 60 is adjusted by the screw of the adjustment member 61. Due to the adjusted elastic force of the spring material 60, the weight corresponding to the weight of the crimping head 50 is reduced.

  The pressing body (pressurizing unit) 2 is adjusted in height along the frame 16 and comes into contact with the pressurizing object W. The height of the pressing body (pressurizing unit) 2 is adjusted by rotating the ball screw 19 by the servo motor 17 under the control of the control device 30 based on information from the rotary encoder 22. After the pressing body (pressurizing unit) 2 comes into contact with the pressurizing object W, the air cylinder 10 is pressurized.

The weight of the pressing body (pressurizing unit) 2 itself at the time of contact is canceled by the self-weight canceling mechanism 3. Therefore, the pressure applied by the air cylinder 10 becomes a pressure that pressurizes the pressurization target W.
JP 2004-273688 A

  However, in the conventional crimping device, the height of the pressing body (pressurizing unit) is such that the air cylinder body itself, in which the pressing head (crimping head) is directly connected to the tip by a ball screw mechanism using a servo motor, is the object to be pressurized. Since it is lowered, there is a problem that an impact force is applied to the object to be pressed due to a change in the friction coefficient, a stick phenomenon in the air cylinder, or the like.

  In the air cylinder, when the piston sliding inside the cylinder starts to move, the friction coefficient changes from static friction to dynamic friction. In particular, when the piston is started from a state where it has been stopped for a certain period of time, the contact surface between the seal portion and the inner wall surface of the cylinder is in a state of lack of lubrication. A stick phenomenon may occur where the ring does not move. This shows a large frictional resistance for starting. For this reason, the air cylinder may not start moving unless a force stronger than the pressure to be applied to the pressurized object is originally applied.

  In the conventional technology in which the entire air cylinder is included in the pressing body that moves up and down toward the pressurized object, the piston in the air cylinder starts to move after contacting, and this phenomenon causes the pressurized object to move. Impact force may be applied. Such an impact force is a serious problem in the present situation where the pressurizing conditions are diversified as described above, and furthermore, the control of highly accurate conditions is required.

  Further, the conventional crimping apparatus has a problem that the weight of the pressurizing part is not accurately canceled when the object to be pressed is pressed, and the pressurizing force when pressurizing becomes inaccurate.

  The length of the spring material changes with the pressurization with the air cylinder. Therefore, the weight (corresponding to its own weight) of the pressurizing portion that is canceled out by the spring material changes during pressurization of the pressurizing object. Even if the change in the length of the spring material during pressurization is slight, it cannot be ignored if the applied pressure during pressurization is weak.

  The present invention has been made to solve the above-described problem, and can press the object to be pressed without increasing the pressure to increase the pressure to the target pressure without applying an impact force. And it aims at provision of the crimping | compression-bonding apparatus which can apply a pressurization force weaker than the pressurization force corresponded to the dead weight of the site | part which presses a pressurization target object correctly.

  In order to achieve the above object, a crimping apparatus according to the present invention is a pressurizing apparatus that pressurizes a pressurizing object, and includes a base part that supports the pressurizing object and a base part that includes the base part. A column that is erected on a table, a pressure body that is movable along the column, and that presses the pressure object on the base; and the pressure object that is provided on the column. A fluid pressure cylinder that applies pressure to the pressing body to press the pressure body, an elastic member having elasticity capable of canceling the weight of the pressing body, and the weight of the pressing body through the elastic member And a movable support that supports the pressing body from the opposite side to the pressing direction of the fluid pressure cylinder with respect to the pressurizing object and moves the pressing body along the column body. .

  Thus, the pressing body is supported by the movable support and moves along the column. The fluid pressure cylinder is provided on the column. Therefore, when the pressing body moves toward the object to be pressurized, the piston in the fluid pressure cylinder also moves in conjunction with the movement of the pressing body with respect to the fluid pressure cylinder body. Therefore, when the pressing body comes into contact with the pressurized object, the piston in the fluid pressure cylinder moves with respect to the cylinder, so that an impact is applied to the pressurized object due to a change in friction force or a stick phenomenon. It can be avoided.

  Further, the pressing body is supported by the movable support body from the opposite side to the pressurizing direction of the fluid pressure cylinder with respect to the pressurizing object so that the pressing body also cancels the weight via the elastic member. Therefore, the weight of the pressing body is canceled out by the elastic member. Further, the length of the elastic member can be controlled by the arrangement of the movable support in the height direction when the pressing body abuts on the pressing target and while the pressing target is pressed. Therefore, it is possible to accurately cancel the weight of the pressing body regardless of the thickness of the pressurizing object, and it is possible to accurately control the pressing force that presses the pressurizing object.

  Preferably, the apparatus further includes a drive source for moving the movable support, and a control unit that controls the drive source so that the movable support moves as the pressure body moves. A piston that slides inside the fluid pressure cylinder, a piston rod that extends from the piston toward at least one direction in which the piston slides, and a lower end portion of the piston rod, the pressurizing object You may have a press head which presses, and a heater which heats the press head.

  Thus, the pressing body has a heater. Thereby, it can heat and press simultaneously with pressurization.

  In this case, the weight of the pressing body becomes heavier due to the weight of the heater. Therefore, it may be required to press the object to be pressed with a target pressing force that is smaller than the pressing force corresponding to the weight of the pressing body. In the present invention, the elastic member can accurately cancel the weight of the pressing body regardless of the thickness of the object to be pressed. Therefore, it is possible to accurately press the object to be pressed with a target pressing force smaller than the pressing force corresponding to the weight of the pressing body.

  In order to achieve the above object, the crimping method according to the present invention includes a lower receiving part that supports an object to be pressed, a column that is erected on a base that includes the lower receiving part, and the column. A pressure body that presses the pressurization object, a fluid pressure cylinder that is provided on the column body and applies pressure to the press body to press the pressurization object, and An elastic member having elasticity capable of canceling the weight of the pressing body, and a direction opposite to the pressurizing direction of the fluid pressure cylinder with respect to the pressurizing object so as to cancel the weight of the pressing body via the elastic member A pressurizing method executed by a pressurizing device that includes a movable support that supports the pressing body from the side and moves the pressing body along the column body, and generates pressure in the fluid pressure cylinder Pressure in the first control step and the first control step The movement start step for starting the movement of the movable support, the movement amount acquisition step for acquiring the movement amount of the movable support according to the thickness of the object to be pressed, and the movement start step A movement end step for ending the movement of the movable support that supports the pressing body via the elastic member when the movement amount acquired in advance in the movement amount acquisition step is moved after the movement of the support is started; May be included.

  In this way, pressure is generated in the fluid pressure cylinder to start the movement of the movable support. Since the pressing body is supported by the movable support body from the side opposite to the pressurizing direction with respect to the pressurization target of the fluid pressure cylinder, the pressing body moves as the movable support body moves. Therefore, when the pressing body comes into contact with the object to be pressurized, the piston in the fluid pressure cylinder has already started moving with respect to the cylinder. Therefore, it is possible to avoid an impact on the object to be pressed due to a change in frictional force or a stick phenomenon.

  In addition, a fluid pressure cylinder provided with a piston rod is provided on the column body, and the pressure of the fluid pressure cylinder on the object to be pressurized is canceled through the elastic member according to the thickness of the object to be pressurized. Movement of a movable support that supports a pressing body having a pressing head that pressurizes an object to be pressed on the lower end portion of the piston rod of the fluid cylinder from the side opposite to the pressure direction, and moves the pressing body along the column. Control the amount. Therefore, regardless of the thickness of the object to be pressed, the weight of the pressing body is accurately canceled by the elastic member. Therefore, it is possible to accurately cancel the weight of the pressing body regardless of the thickness of the pressurizing object, and it is possible to accurately control the pressing force that presses the pressurizing object.

  According to the present invention, it is possible to abut on the object to be pressed without impact, and it is possible to increase the pressure to the target pressure without applying an impact force and press it. In addition, it is possible to accurately apply a pressing force that is weaker than the pressing force corresponding to the weight of the pressing body that presses the object to be pressed.

  Embodiments of a pressure device according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing a configuration of a panel production system including a crimping apparatus according to an embodiment of the present invention.

  The panel production system 100 is a device that produces a display panel such as a liquid crystal display, and includes an ACF (Anisotropic Conductive Film) sticking device 110, a provisional pressure bonding (component placement) device 120, a pressure bonding device 200, and a conveying device 140. The

  The ACF attaching device 110 attaches an ACF tape to an electrode terminal portion provided on a peripheral portion of a substrate 150 such as a glass plate having electrode terminals.

  Here, the “ACF tape” is a tape-like anisotropic conductive film, and is made of a material obtained by mixing fine metal particles having conductivity with a resin having thermosetting properties. By pressing under conditions according to the properties of the ACF tape, such as type and size, the electrical conductivity between the terminals arranged above and below is maintained and bonded and cured.

  The pre-crimping device 120 is a device for attaching the component 160 to the terminal of the electrode on which the ACF tape on the peripheral portion of the substrate 150 is attached, and has a transfer head 122 for mounting the component 160 on the substrate 150.

  The pressure bonding device 200 as a pressure device is a device that presses the peripheral edge ACF tape of the substrate 150, the component 160, and the substrate 150 to which the component 160 is attached under a predetermined pressure bonding condition, thereby pressure bonding the substrate 150 and the component 160. It is. As a result, the ACF tape is cured, and the electrode terminals of the substrate 150 are electrically connected to the electrode terminals of the component 160.

  Here, “pressurized object” refers to an object to be pressurized. In the present embodiment, the component 160 is pressure-bonded to an electrode terminal portion provided on a peripheral portion of the substrate 150 through a joining member such as an ACF.

  Here, the “crimping condition” refers to a condition for pressing an object to be pressed. For example, in the case where the ACF tape is a pressure bonding object to the substrate and a bonding member, the pressing time, the pressing temperature, and the pressing pressure are included.

  The ACF sticking device 110, the temporary pressure bonding device 120, and the main pressure bonding device 130 support the substrate 150 by vacuum suction, respectively, in the XY (horizontal) direction, the Z (vertical) direction, and the θ (rotation in a horizontal plane) direction. A support stage 111, a support stage 121, and a support stage 131 are provided.

  The transport device 140 transports the substrate 150 between the ACF sticking device 110, the temporary pressure bonding device 120, and the main pressure bonding device 130.

  FIG. 2 is a side view of the crimping apparatus 200.

  The crimping device 200 is a device for crimping the substrate 150 supported by the support stage 131 and the component 160, and includes a base 201 having a receiving portion 201 a, a column body 202, a pressing head 203, and a fluid pressure cylinder. 205, an elastic member 210, a locking part 212, a pressure control part 213, a servo motor 214, a control part 216, and a movable support body 220.

  The base 201a provided in the base 201 supports the peripheral edge of the substrate 150 to which the component 160 is bonded from below, and supports these when the component 160 is pressed against the substrate 150.

  The column body 202 is a columnar member that is erected on the base 201 and includes a ball screw 218 and a movement guide 204, and the ball screw 218 is screwed into a movable support body 220 described later.

  The movement guide 204 guides the movement of the pressing head 203, which will be described later, with respect to the object to be pressed in a direction along the column 202.

  The fluid pressure cylinder 205 is a part that is provided on the column body 202 and generates a pressurizing force for pressing the substrate 150 and the component 160, and includes a cylinder body 206, a piston 207, and a piston rod 208. .

  The cylinder body 206 is a hollow cylinder into which gas, which is a fluid serving as a pressure transmission medium, flows in and out. Note that the fluid serving as the pressure transmission medium may be either a compressed fluid such as a gas or an incompressible fluid such as a liquid.

  The piston 207 is a disk-shaped part that reciprocates inside the cylinder body 206. A pressure for pressing the substrate 150 and the component 160 is applied to the piston 207 by a fluid. A ring member 207a is attached to the piston 207 on the outer peripheral surface in contact with the cylinder in order to improve airtightness and smooth movement.

  The piston rod 208 of the piston 207 extends at least on the side where the component 160 is pressed against the substrate 150 in the sliding direction of the piston 207, and is arranged to move up and down in parallel with the column 202. . Preferably, the piston rod 208 extends on both sides of the piston 207 with respect to the sliding direction of the piston 207 of the fluid cylinder. As a result, the pressing head 203 can be engaged with the one end of the piston rod 208, and an elastic member for canceling the weight of the pressing body can be provided on the other side, and a simple structure can be achieved.

  The pressing head 203 is provided on the end of the piston rod 208 on the side where the substrate 150 and the component 160 are disposed, and presses the component 160 against the substrate 150. With such a configuration, the pressing head 203 moves stably along with the movement of the piston rod 208 and along the guide of the moving guide 204 provided in the column 202.

  The pressing head 203 is also provided with a heater for heat-bonding the component 160 to the substrate 150 via the ACF tape. Usually, the pressing head 203 and the pressing head 203 are integrated with the pressing head 203 to perform pressing for heat-bonding. The pressing body weighs 2 to 3 kilograms.

  The elastic member 210 is a coiled spring that is disposed so that the piston rod 208 penetrates the inside of the spiral wire rod. The elastic member 210 includes a piston rod 208 that constitutes the pressing body and a portion such as a pressing head that is integrated with the piston rod 208. It has elasticity that can cancel the weight.

  Here, the pressing body described in the claims is a member that presses the object to be pressed, and corresponds to the piston rod 208 and the part integrated with the piston rod 208 of the present embodiment.

  Further, the part integrated with the piston rod 208 is a part fixed to the piston rod 208. In the present embodiment, the pressing head 203, the piston 207, and the upper portion of the locking portion 212 described later are applied to the object to be pressed when pressure is not applied to a cylinder such as a part integrated with the piston rod 208. It corresponds to the part related to the weight.

  The upper and lower engaging portions 212 are in direct contact with both ends of the elastic member 210, respectively, and engage the elastic member 210. That is, the locking portion 212 is a portion that directly receives the elastic force of the elastic member 210.

  Further, an upper locking portion 212 that is in contact with the upper end of the elastic member 210 is fixed to the piston rod 208.

  The movable support body 220 supports the engaging portion 212 that contacts the lower end of the elastic member 210 from the opposite side to the pressurizing direction of the fluid cylinder with respect to the pressurizing target, and constitutes a pressing body via the elastic member 210. 208 is supported. The movable support 220 is screwed with the ball screw 218 and moves in parallel with the column body 202 in conjunction with the rotation of the ball screw 218. By this movement, the piston rod 208 supported by the movable support 220 and the pressing body such as the pressing head 203 provided on the piston rod 208 are moved along the column 202.

  The pressure control unit 213 controls the fluid pressure so that the fluid pressure cylinder 205 generates a pressure necessary to apply a target pressure (hereinafter referred to as “target pressure”) to the substrate 150 and the component 160. The applied pressure is controlled by the cylinder 205.

  The servo motor 214 as a drive source detects the amount of rotation, rotates the ball screw 218, and moves the movable support body 220 screwed with the ball screw 218 up and down in the direction of the pressurized object.

  The control unit 216 controls the rotation amount of the servo motor 214 based on information from the servo motor 214, thereby controlling the start of movement of the movable support 220, the speed of movement, and the arrangement after the movement. The control unit 216 acquires, as information, the total thickness of the substrate 150 and the component 160 (hereinafter referred to as “thickness of the object”) and the pressure applied to the substrate 150 and the component 160. Based on the information, the position where the movable support 220 should be arranged is determined.

  The configuration of the crimping apparatus 200 has been described above.

  Next, the procedure of crimping by the crimping apparatus 200 will be described with specific examples with reference to FIGS.

  Here, in order to simplify the description, it is assumed that the weight of the pressing body is 2 kilograms.

  The target pressure applied to the substrate 150 and the component 160 is assumed to be 1 kilogram.

  FIG. 3 is a diagram illustrating an initial state of the crimping apparatus 200.

  The movable support body 220 is disposed at the upper limit. Further, the fluid pressure cylinder 205 does not apply pressure.

  In this state, since the distance between the lower receiving portion 201a and the pressing head 203 is far away, the lower receiving portion of the base 201 that supports the peripheral portion of the substrate 150 on which the component 160 to be crimped is arranged from below. Mounting on 201a is easy. Further, the elastic member 210 in this state has a weight of 2 kg of the pressing body. That is, when the length L of the elastic member 210 is in the state (L1) shown in FIG. 3, the weight of the pressing body is applied to the elastic member 210.

  FIG. 4 is a side view showing a state in which a pressurizing force of 1 kilogram, which is a target pressurizing force, is generated by the fluid pressure cylinder 205.

  The fluid pressure cylinder 205 generates pressure in a direction in which the component 160 is pressurized and pressed against the substrate 150 under the control of the pressure control unit 213. The control unit 216 receives a notification from the pressure control unit 213 that the fluid pressure cylinder 205 has generated the target pressure, and the movable support body 220 moves toward the pressurizing object that pressurizes the component 160 against the substrate 150. Then, the servo motor 214 is operated.

  Further, here, both ends of the cylinder body 206 in the sliding direction of the piston 207 of the fluid pressure cylinder 205 are penetrated, and the piston rod 208 is extended in both the vertical direction from the piston 207, and from one end side of the cylinder body 206. The front end side of the extended piston rod 208 is connected to the pressing head 203, and the pressing body including the pressing head 203, the piston 207, the piston rod 208, etc. is connected to the piston rod 208 extended from the other end side of the cylinder body 206. An elastic member 210 having elasticity capable of canceling the weight is provided, and the pressing body is pressed against the pressurizing object of the fluid pressure cylinder 205 so as to cancel the weight of the pressing body via the elastic member 210. Supports the pressing body from the opposite side and moves the movable body that moves the pressing body along the column body 202.

  As a result, since the fluid pressure cylinder 205 can be moved to the next pressurizing operation in a state where the fluid pressure cylinder 205 is continuously operated in the sliding direction of the piston 207 of the fluid pressure cylinder 205, the pressing head 203 is pressurized and bonded to the substrate 150. The friction between the cylinder main body 206 of the fluid pressure cylinder 205 and the piston 207 is in a dynamic friction state until it comes into contact with the component 160 to be operated. The applied pressure can be controlled with high accuracy without being affected by variations in frictional resistance.

  In the present embodiment, the piston rod 208 extends in both the upper and lower directions through the both ends of the cylinder body 206 in the sliding direction of the piston 207 of the fluid pressure cylinder 205. If the pressure is not adversely affected, the piston rod 208 is extended in at least one direction through one side of the cylinder body 206, and the pressing head 203 is connected to the distal end side of the piston rod 208. An elastic member having elasticity capable of canceling the weight of the pressing body including the pressing head 203, the piston 207, the piston rod 208, and the like is provided in a part of the piston rod 208 between them. From the opposite side of the pressurizing direction of the fluid pressure cylinder 205 against the pressurizing object, so as to cancel the weight of the pressing body, It may be supported with the structure by moving object.

  FIG. 5 is a side view showing a state in which the pressing head 203 is in contact with a component 160 attached to the substrate 150.

  From the state of FIG. 4, the pressing body that has generated the target pressure by the fluid pressure cylinder 205 is moved by the movable support 220 in the direction opposite to the direction in which the fluid pressure cylinder 205 presses the component 160 against the substrate 150. While being supported, the pressing body including the piston rod 208 and the movable support body 220 move in the direction in which the substrate 160 is pressed against the cylinder body 206 of the fluid pressure cylinder 205. Then, the pressing head 203 comes into contact with the component 160 disposed on the peripheral edge of the substrate 150. At this time, the pressure to press the component 160 against the substrate 150 is not yet applied.

  FIG. 6 is a diagram showing a state in which a target pressure smaller than the applied pressure corresponding to the weight of the pressing body itself is applied to the component 160 disposed on the peripheral edge of the substrate 150.

  The movable support body 220 further moves in a direction in which the component 160 is pressed against the substrate 150 from the state in which the pressing head 203 of the pressing body in FIG. Thereby, as shown in FIG. 6, the length L of the elastic member 210 when it is bent is recovered, and a part of the elastic force is released. At this time, the deflection length L of the elastic member 210 is substantially the same as the deflection length L1 of the elastic member 210 in the initial state shown in FIG. It is in a state where it is canceled out by the elastic force. Therefore, the substrate 150 and the component 160 are subjected to a pressure of 1 kilogram generated by the fluid pressure cylinder 205.

  In this case, for example, the thickness of the object is input in advance and stored in the control unit 216. When the height at which the pressing head 203 starts to contact the lower portion 201a that supports the lower surface of the peripheral portion of the substrate 150 to be pressed of the base 201 is set as a lower limit, the ACF that is a bonding member after pressure bonding from the lower limit By subtracting the thickness from the upper surface of the component 160 disposed on the peripheral edge of the substrate 150 to the lower surface of the substrate 150 that is pressure-bonded, the pressing head 203 moves the component 160 onto the substrate 150 by the movable support 220. The height that moves in the direction of pressurization is calculated.

  In addition, the crimping apparatus 200 includes a sensor that measures the moving distance or the current height position as the movable support 220 moves, and the control unit 216 acquires the distance L or position measured by the sensor, and from that distance You may calculate the distance which the movable support body 220 moves by subtracting the thickness of a target object. The moving distance or the current height may be measured using the output of a rotary encoder that detects the rotation of the servo motor. In this case, the sensor for measuring the position is a rotary encoder.

  As described above, the movable support 220 moves in consideration of the thickness of the object. The movement is accurately controlled by the servo motor 214, the ball screw 218, and the control unit 216. Therefore, regardless of the thickness of the pressurizing object, the weight of the pressing body is accurately adjusted by the elastic member 210 by controlling the movement of the movable support 220 based on the thickness of the pressurizing object. Can be canceled. Therefore, the substrate 150 and the component 160 can be accurately pressurized with the pressure by the fluid pressure cylinder 205.

  Further, the pressure by the fluid pressure cylinder 205 can be easily and accurately controlled by the present invention.

  Furthermore, since the weight of the pressing body can be accurately canceled as described above, it is possible to apply a pressure that is weaker than the pressure corresponding to the weight of the pressing body.

  In the above crimping procedure, the case where the target pressing force is smaller than the pressing force corresponding to the weight of the pressing body has been described as an example.

  With the crimping apparatus 200 according to the present embodiment, it is possible to accurately press the substrate 150 and the component 160 with a target pressing force larger than the pressing force corresponding to the weight of the pressing body.

  For example, in the state of FIG. 6, the fluid pressure cylinder 205 may apply a target pressure greater than the pressure corresponding to the weight of the pressing body.

  Further, for example, the weight of the pressing body itself may be used as a pressing force for pressing the substrate 150 and the component 160.

  FIG. 7 is a diagram illustrating a state in which a target pressing force larger than the pressing force corresponding to the weight of the pressing body itself is applied to the substrate 150 and the component 160 using the weight of the pressing body itself.

  From the state of FIG. 6, the movable support 220 further moves in a direction in which the component 160 is pressed against the substrate 150. Thereby, as shown in FIG. 7, the length L at the time of deflection of the elastic member 210 becomes equal to or greater than the natural length. At this time, a pressing force generated by the fluid pressure cylinder 205 and a pressing force corresponding to the weight of the pressing body are applied to the substrate 150 and the component 160.

  For example, when the weight of the pressing body is 2 kilograms and the applied pressure generated by the fluid pressure cylinder 205 is 1 kilogram, an applied pressure of 3 kilograms is applied to the pressurized object.

  According to such a crimping procedure, after the component 160 is pressed against and pressed against the substrate 150 while the component 160 is pressed against the substrate 150, the target pressure is reached without applying an impact to the substrate 150 when the component 160 is pressed. The applied pressure can be increased.

  The crimping apparatus according to the embodiment of the present invention has been described above, but the present invention is not limited to this embodiment.

  For example, an ACF tape has been described as an example of a joining member for crimping a component to a substrate. However, a joining member using a conductive adhesive or a non-conductive adhesive, or a component electrode and a substrate directly without using a joining member. What is necessary is just what presses with an applied pressure, such as what ultrasonically joins an electrode.

  For example, the elastic member 210 is not limited to a string spring, but may be an elastic member such as rubber or a fluid pressure cylinder. In the embodiment, the elastic member 210 is arranged so that the piston rod 208 penetrates the inside of the spiral wire. However, the elastic member 210 is not limited to this, and may be arranged in parallel with the piston rod, for example.

  Further, for example, in the embodiment, one fluid pressure cylinder is provided in one pressing body, but a plurality of fluid pressure cylinders may be provided in one pressing body. Also, a single pressing body may be provided with a plurality of elastic members, whereby the weight of the pressing body may be canceled.

  Further, for example, the crimping device 200 may include a sensor that detects the start of movement of the piston rod 208, and the control unit 216 may start moving the movable support 220 after the start of movement of the piston rod 208 is detected. Thereby, it becomes possible to suppress that the press head 203 gives an impact to a pressurization target object by starting a movement rapidly.

  The present invention can be applied to an apparatus that pressurizes an object to be pressed, and particularly applicable to a pressure bonding apparatus.

It is a perspective view which shows the structure of a panel production system provided with the crimping | compression-bonding apparatus which concerns on embodiment of this invention. It is a side view of a crimping | compression-bonding apparatus. (a) Relationship diagram between length L of elastic member and pressure force P of fluid pressure cylinder, (b) It is a figure which shows the initial state of a crimping | compression-bonding apparatus. It is a side view which shows the state which started generating the pressurizing force with the fluid pressure cylinder. It is a side view which shows the state which the press head contact | abutted to the components attached to the board | substrate. It is a figure which shows the state in which the target applied pressure smaller than the applied pressure equivalent to the weight of press body itself is applied to the board | substrate and components. It is a figure which shows the state in which the target applied pressure larger than the applied pressure equivalent to the weight of press body itself is applied to the board | substrate and components using the weight of press body itself. It is a side view which shows the example of the conventional crimping | compression-bonding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Panel production system 110 Pasting apparatus 120 Temporary crimping apparatus 130 Main crimping apparatus 140 Conveying apparatus 150 Substrate 160 Parts 200 Crimping apparatus 201 Base 201a Undercarriage 202 Column body 203 Pressing head 204 Moving guide 205 Fluid pressure cylinder 206 Cylinder 207 Piston 208 Piston rod 210 Elastic member 212 Locking portion 213 Pressure control portion 214 Servo motor 216 Control portion 218 Ball screw 220 Movable support

Claims (3)

A pressurizing device for pressurizing a pressurizing object,
A receiving part for supporting the pressurized object;
A column that is fixedly erected on a base including the lower part; and
A pressing body that is movable along the column body and presses the object to be pressed on the lower receiving portion ;
Fixedly disposed against said cylindrical body, and a fluid pressure cylinder for applying a pressure for pressing the pressing body said pressurized object,
An elastic member having elasticity capable of canceling the weight of the pressing body;
The fluid pressure cylinder fixedly provided on the column body from the side opposite to the pressurizing direction of the fluid pressure cylinder with respect to the object to be pressurized so as to cancel the weight of the pressing body via the elastic member. A pressurizing apparatus comprising: a movable support that supports the pressing body that is slidably movable and moves the pressing body along the column body. further,
A drive source for moving the movable support;
A controller that controls the drive source so that the movable body moves with the pressing body moving;
The pressing body is
A piston sliding inside the fluid pressure cylinder;
A piston rod extending from the piston in at least one direction in which the piston slides;
A pressing head that is provided at a lower end of the piston rod and presses the pressing object;
The pressurizing apparatus according to claim 1, further comprising a heater that heats the pressing head. A first control step that is fixedly provided to the column body and generates pressure in a fluid pressure cylinder that applies pressure to the pressing body to press the pressing object in a pressing direction ;
A direction in which pressure is generated in the first control step so as to cancel the weight of the pressing body via an elastic member having elasticity capable of canceling the weight of the pressing body with respect to the pressing direction. the pressing member from the opposite side supports the, and, the pressing of the movable support for supporting the pressing body that operates slidably with respect to the fluid pressure cylinder which is provided fixedly to the columnar body A movement start step for starting movement in the pressurizing direction ;
A movement amount acquisition step of acquiring a movement amount of the movable support according to the thickness of the pressurized object;
After the movement of the movable support is started at the movement start step, the moving amount obtained in advance by the displacement acquiring step when the movable support has moved to end the movement of the movable support A pressurizing method comprising: a movement end step.

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