A transfer jig

Abstract

The present application discloses a kind of transfer clamps, including support, robot flange is arranged in the support one end, support is equipped with at least a set of clamping mechanism, the clamping mechanism includes the pneumatic open clamp used as the two side edges of clamping member and vertically arranged suction cup, and the pneumatic open clamp and suction cup constitute three points and act on the executing mechanism on the member.The transfer clamp can be through the clamping jaw of the lower end of the two side hooks of pneumatic open clamp and form three points of mutual action by the supporting clamping of the two sides of plate piece and the pressure of suction cup to plate piece, constitute a stable force triangle, so as to efficiently and reliably clamp plate piece to carry out various complex process actions and ensure processing quality.In order to replace artificial to complete and send or take out the plate piece of pressing machine, avoid high-risk operation.

Description

TECHNICAL FIELD

[0001] The present application relates to a work fixture for conveying workpieces on an automatic production line, in particular to a work fixture for transferring a plate on an automatic production line. BACKGROUND

[0002] Air conditioner is a common air temperature adjusting device in family life and working place. At present, the air deflector of some models of air conditioner on the market is composed of an outer deflector and an inner deflector which are overlapped and bonded. In production, the inner and outer deflectors are usually overlapped and bonded by special glue first, and then sent into a pressing machine for pressing and curing, so as to prepare a whole air deflector. At present, the air deflector is mainly made by manual operation, such as brushing glue between the inner and outer deflectors, overlapping the inner and outer deflectors, reversing the overlapped inner and outer deflectors, then sending into the pressing machine for pressing and curing, so that the inner and outer deflectors are bonded into a whole, and finally taking out. Since the inner and outer deflectors are arc-shaped long strip plates, they need to go through complex process actions such as transfer and reverse transmission before bonding and curing, and need to keep the inner and outer deflectors from relative displacement. Therefore, the manual operation has high labor intensity, low production efficiency, safety hazards in entering and leaving the pressing machine, and affects the product quality.

[0003] Therefore, how to overcome the defects of the existing air conditioner air deflector pressing and curing production, such as high labor intensity, low production efficiency, unreliable product quality and safety hazards, is an urgent problem to be solved in the industry. SUMMARY

[0004] In order to solve the problems of the existing air conditioner air deflector pressing and curing production, such as high labor intensity, low production efficiency, unreliable product quality and safety hazards, the present application provides a transfer clamp which can replace manual operation, has high production efficiency, reliable quality and safe operation.

[0005] The transfer clamp provided by the present application comprises a bracket and a robot flange arranged at one end of the bracket. The bracket is provided with at least one set of clamping mechanism, and the clamping mechanism comprises a pneumatic open clamp serving as the two side edges of the clamping member and a vertically arranged suction cup. The pneumatic open clamp and the suction cup constitute an actuator acting on the member through three points.

[0006] Preferably, the bracket is composed of two cross beams, and the clamping mechanism can move along the axial direction of the cross beam to adjust the position.

[0007] Preferably, the clamping mechanism comprises a connecting plate arranged transversely to the cross beam, and a set of pneumatic open clamps is arranged under each of the two cross beams corresponding to the connecting plate. A plurality of suction cups are arranged along the axial direction of the connecting plate, and the shape of the clamping jaw of the pneumatic open clamp is adapted to the shape of the side edge of the clamped member.

[0008] Preferably, the front end of the cross beam is provided with at least one set of short connecting plate clamping mechanism, the connecting plate of which is composed of two short connecting plates arranged axially in intervals; and corresponding to the number of the short connecting plate clamping mechanism, there is also a long connecting plate clamping mechanism, the connecting plate of which is a long connecting plate, and the suction cups are uniformly distributed on the long and short connecting plates.

[0009] Preferably, the clamping mechanism is four sets, the first and second sets of clamping mechanism provided at the front end of the cross beam are the short connecting plate clamping mechanism, and the third and fourth sets of clamping mechanism adjacent to them are the long connecting plate clamping mechanism.

[0010] Preferably, the clamping mechanism is at least two sets, the connecting plate of the clamping mechanism is composed of two short connecting plates arranged axially in intervals, and the suction cups are uniformly distributed on the short connecting plates.

[0011] Preferably, the pneumatic opening clamp in the clamping mechanism includes a gas cylinder, the two ends of the piston shaft of the gas cylinder extending left and right are respectively connected with a hook, the lower end of the hook is the clamping jaw, and the hook can be opened or closed transversely under the drive of the air pump.

[0012] Preferably, the component clamped by the clamping mechanism is a long strip plate, which is bent in the direction perpendicular to the axis of the long strip plate to form an arc-shaped plate.

[0013] Preferably, the shape of the clamping jaw of the pneumatic opening clamp of the short connecting plate clamping mechanism corresponds to the shape of the side of the arc-shaped plate with the concave surface facing upward.

[0014] Preferably, the shape of the clamping jaw of the pneumatic opening clamp of the long connecting plate clamping mechanism corresponds to the shape of the side of the arc-shaped plate with the convex surface facing upward.

[0015] The robot on the automatic production line can automatically complete the clamping, transferring and conveying of the plate by the clamping mechanism provided on the transfer clamp of the present application. The clamping mechanism can clamp and hold the plate through the clamping of the clamping jaws on both sides of the pneumatic opening clamp and the pressing of the suction cups on the plate, that is, through the cooperation of three points on the plate, a stable force triangle is formed, so that the plate can be clamped efficiently and reliably for various transfer, overturning or pick-and-place complex process actions, and the processing quality of the product can be guaranteed. Thus, the work of feeding or taking out the plate into or out of the pressing machine is completed by artificial, and the high-risk operation is avoided. When the transfer clamp with an even number of clamping mechanisms is used, multiple plates can be processed and transferred at the same time. After being fed into the pressing machine, the plates in the front and rear pressing batches can be exchanged to shorten the production rhythm and improve the production efficiency. The application of the transfer clamp of the present application can improve the coverage rate of industrial automation, especially for the gluing, transferring, overturning and conveying, pressing and curing of air deflector plates, which can guarantee the quality, safety, efficiency and cost reduction. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the transfer fixture of the present invention, showing the simultaneous gripping of four air conditioning air guide plates.

[0017] Figure 2 For along Figure 1 A view projected onto one side of the axial direction of the air guide plate in the middle;

[0018] Figure 3 This is a schematic diagram of the short connecting plate clamping mechanism of the transfer fixture of the present invention, which clamps the air guide plate and flips it over.

[0019] Figure 4 This is a schematic diagram of the inner and outer guide plates constituting the air guide plate, held in accordance with an embodiment of the present invention;

[0020] Figure 5 for Figure 4 A view projected onto one side of the axial direction of the inner and outer guide plates.

[0021] Among them, 1 is a concave air guide plate, 2 is a short connecting plate, 3 is a suction cup, 4 is a long connecting plate, and 5 is a convex air guide plate.

[0022] 6. Pneumatic opening clamp, 7. Bracket, 8. Robot flange, 10. Side bracket, 11. Tilting table, 12. Intermediate bracket, 13. Inner guide plate, 14. Outer guide plate, 15. Gripper. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this is not intended to limit the present invention.

[0024] This invention provides a first embodiment of a transfer fixture for conveying air guide plates on an air conditioner air guide plate pressing production line. The following is based on… Figure 1 , Figure 2 To illustrate, the transfer fixture includes a support 7 consisting of two parallel crossbeams, a robot flange 8 located at one end of the two crossbeams, and a cantilever structure at the other end of the two crossbeams. The robot flange 8 can be connected to a robotic arm on an automated production line and the transfer fixture can be used to transfer and convey the air guide plate components. A clamping mechanism is provided on the lower side of the support 7, which includes an actuator consisting of pneumatic open clamps 6 and suction cups 3. In this embodiment, the clamping mechanism includes a connecting plate 4 that intersects the crossbeams of the support 7 in the horizontal plane. Each connecting plate 4 corresponding to the two crossbeams has a set of pneumatic open clamps 6 used for laterally clamping the sides of the components. Multiple suction cups 3 are evenly distributed along the axial direction of the connecting plate 4. The lower end of the pneumatic open clamp 6 has a gripper 15, the shape of which corresponds to the shape of the side of the air guide plate 5 being clamped (see [reference]). Figure 2 ).like Figure 4 , Figure 5The inner guide plate 13 and the outer guide plate 14 shown can be overlapped to form an air deflector. The air deflector is a long strip plate which is curved to be an arc-shaped plate along the vertical direction of the long strip plate. During processing, the bonding surface of the inner guide plate 13 and the outer guide plate 14 is coated with glue and then stacked for preliminary bonding. Since the glue is still in liquid state before the air deflector is sent into the pressing machine for pressing and curing, the relative dislocation between the inner guide plate 13 and the outer guide plate 14 is prone to occur during the transfer of the air deflector, which affects the quality of the product. Therefore, a stable and reliable clamping mechanism is needed to clamp the inner and outer guide plates 13 and 14 which have not been cured and bonded.

[0025] As shown in Figure 1 , Figure 2 , the pneumatic opening clamp 6 of the actuator in the clamping mechanism of the embodiment includes a cylinder mechanism arranged on the connecting plate below the corresponding beam. The left and right ends of the piston shaft of the cylinder mechanism are respectively connected with a hook. The lower end of the hook is provided with the clamping jaw 15. The hook can be opened or closed transversely under the drive of the air pump. The suction cup 3 is vertically arranged downward. When the air pump drives the hook to be opened transversely and then to be closed, the clamping jaw 15 of the hook can be clamped on the two side edges of the air deflector 5. At the same time, the suction cup 3 above the air deflector 5 moves downward and presses on the upper surface of the air deflector 5. Through the support and clamping of the two side clamping jaws 15 and the pressing of the suction cup 3, that is, through the joint action of the three points on the air deflector 5, a stable force triangle is formed, so that the air deflector 5 can be clamped efficiently and reliably for various transfer, overturning, picking and placing and other complex process actions, and the processing quality of the product can be ensured. According to the different pressing modes of the feeding or pressing machine, for example, when the air deflector 1 is fed with the concave surface upward after preliminary bonding, the two side edges of the arc-shaped air deflector 1 are upwardly curved. Therefore, the shape of the clamping surface of the clamping jaw 15 should be correspondingly adapted to the shape of the upwardly curved two side edges of the air deflector 1. At this time, the corresponding pressing part of the pressing machine should be adapted to the shape of the air deflector 1 with the concave surface upward. Similarly, when the air deflector 5 is fed with the convex surface upward after preliminary bonding, the two side edges of the arc-shaped air deflector 5 are downwardly curved. Therefore, the shape of the clamping surface of the clamping jaw 15 should be correspondingly adapted to the shape of the downwardly curved two side edges of the air deflector 5. The pressing part of the pressing machine should also be adapted to the shape of the air deflector 5 with the convex surface upward. That is, the clamping surface of the clamping jaw 15 is shaped according to the shape of the two side edges of the air deflector 1 or 5, so that the product can be clamped more stably and reliably.

[0026] According to the needs and the capacity of the pressing machine, the transfer clamp provided by the present application is desirably provided with multiple sets of clamping mechanisms, such as two sets, four sets or six sets of even orders, please refer to Figure 1 , 2As shown, this type of transfer fixture can clamp multiple air guide plates 1 and 5 for processing at once. It can also complete the material handling and unloading actions in one step within the pressing machine, shortening the transfer cycle and improving production efficiency. The crossbeam of the support 7 has a sliding groove along its axial direction, allowing the clamping mechanism to move along the axial direction of the crossbeam, thereby adjusting the distance between the clamping mechanisms to meet production needs. In addition to clamping curved air guide plates, the transfer fixture provided by this invention can also be used to clamp other workpieces with two or similar sides for transfer and processing.

[0027] like Figure 1 , 2 The image shows a second embodiment of a transfer fixture for conveying air guide plates on an air conditioning air guide plate pressing production line provided by the present invention. This type of transfer fixture is commonly used after the inner and outer guide plates 13 and 14 are initially bonded, with the air guide plate 1 fed in a concave-upward manner. Before being fed into the pressing machine for pressing and curing, the concave-upward air guide plate 1 must be flipped over to become a convex-upward air guide plate 5 before being fed into the pressing machine for pressing and curing. The transfer fixture in this embodiment includes a support 7 composed of two parallel beams, a robot flange 8 located at one end of the two beams, and a cantilever structure at the other end of the two beams. The robot flange 8 can be connected to a robotic arm on an automated production line and the transfer fixture can be used to convey the air guide plate. In this embodiment, the lower side of the bracket 7 is provided with four sets of clamping mechanisms. Each clamping mechanism includes connecting plates 2 and 4 that intersect the crossbeams of the bracket 7 in the horizontal plane. Each connecting plate under the two crossbeams is provided with a set of pneumatic opening clamps 6 for laterally clamping the sides of the air guide plates. Multiple suction cups 3 are evenly distributed along the axial direction of the connecting plates 2 and 4. The lower end of the pneumatic opening clamp is provided with a gripper 15. The shape of the gripping surface of this gripper corresponds to and is adapted to the shape of the sides of the clamped air guide plates 1 and 5 (please refer to...). Figure 2 The first and second clamping mechanisms located at the front end of the crossbeam are short connecting plate 2 clamping mechanisms, while the adjacent third and fourth clamping mechanisms are long connecting plate 4 clamping mechanisms. The connecting plate of the short connecting plate 2 clamping mechanism is formed by two short connecting plates 2 axially spaced apart, meaning the short connecting plates 2 are spaced apart between the two crossbeams. The connecting plate of the long connecting plate 4 clamping mechanism is a single long connecting plate 4. Suction cups 3 are evenly distributed on the long connecting plate 4 and the short connecting plate 2. In this embodiment, the frame 7 is equipped with four clamping mechanisms, allowing for the clamping of up to four air guide plates 1 and 5 at a time.

[0028] like Figure 4 , Figure 5The diagram shows the inner guide plate 13 and outer guide plate 14, which overlap to form an air conditioning air guide plate. The air guide plate is a long strip of plate, bent into an arc shape along a direction perpendicular to the axial direction of the strip. During production, adhesive is first applied to the mating surfaces of the inner guide plate 13 and outer guide plate 14 before they are stacked for preliminary bonding. Because the adhesive is still in a liquid state before the air guide plate is pressed and cured in the pressing machine, relative misalignment can easily occur between the inner guide plate 13 and outer guide plate 14 when the air guide plate is transferred, affecting the quality of the product. Therefore, a stable and reliable clamping mechanism is needed to clamp and transfer the inner and outer guide plates 13 and 14, which have not yet been cured and bonded.

[0029] like Figure 1 , Figure 2 As shown, when the inner and outer guide plates 13 and 14 are initially bonded and enter the automatic production line, the air guide plate 1 is in the state of having its concave surface facing upwards. The first and second sets of short connecting plates 2 clamping mechanisms of the transfer fixture of the present invention first grasp the two air guide plates 1 with their concave surfaces facing upwards. The clamping action is as follows: the hook of the pneumatic open clamp 6 is in the open state, and the transfer fixture is pressed down a certain distance within the buffer rod stroke of the suction cup 3. After the suction cup 3 adsorbs the upper surface of the air guide plate 1 with its concave surface facing upwards, the hook of the pneumatic open clamp 6 closes laterally and clamps the two sides of the air guide plate 1 with its concave surface facing upwards. Then, the transfer fixture clamps the air guide plate 1 with its concave surface facing upwards and begins to transfer it upwards. Because the buffer rod of suction cup 3 is compressed in the early stage, the concave-facing air guide plate 1 remains in a fixed position relative to the ground during the initial lifting phase. When the buffer rod of suction cup 3 has completed its travel, the top of the concave-facing air guide plate 1 is gripped by the suction force of suction cup 3, while the bottom is supported by the claws 15 of the pneumatic opening clamp 6. At the same time, the hooks on both sides of the pneumatic opening clamp 6 clamp the two sides of the concave-facing air guide plate 1 to restrict it. That is, through the combined action of the hooks on both sides of the pneumatic opening clamp 6 and suction cup 3, a stable force triangle is formed, thereby ensuring that the stacked inner and outer guide plates 13 and 14 do not shift relative to each other and are transferred efficiently and stably. In order to suit the structural setting of the pressing components of the pressing machine, when the air guide plates enter the pressing machine for pressing and curing, the two concave-facing air guide plates 1 need to be flipped to a convex-facing state. Therefore, a flipping process needs to be added during the transfer. The two concave-facing air guide plates 1, which are to be held by the first and second sets of short connecting plates 2 clamping mechanisms, will undergo a first 180° rotation, and then be placed on the rotation table 11 (as shown). Figure 3The air deflector has become the air deflector 5 with the convex surface upward. Only the first and second sets of short connecting plates 2 clamping mechanisms are clamping. Then, the transfer clamp exits, and the second 180° turning is performed to return to the original position. Then, the third and fourth sets of long connecting plates 4 clamping mechanisms clamp the two air deflectors 5 with the convex surface upward which are placed on the turning table 11 and are sent to the pressing position of the pressing machine. The clamping mechanisms are released, the transfer clamp exits, and the pressing machine starts to press and solidify. In this step, the first and second sets of short connecting plates 2 clamping mechanisms do not participate in clamping. Since the inner and outer guides 13 and 14 need to be turned by the robot before the solidification after the adhesion, and then are sent to the pressing machine for pressing and solidification, the action is fast and the inertia is large. Therefore, the clamping and limiting of the air deflector which is stacked by the pneumatic opening clamp 6 and the suction cup 3 cooperating clamping execution mechanism must be ensured, so as to ensure the quality of the air deflector.

[0030] As shown in Figure 3 The surface of the turning table 11 is provided with three support legs which are arranged in two rows and are in a straight line, i.e. the side support legs 10 and the middle support leg 12. The connecting plates of the first and second sets of short connecting plates 2 clamping mechanisms need to adopt two sections of short connecting plates 2 which are arranged at intervals, i.e. the connecting plates between the two cross beams are disconnected. When the transfer clamp places the air deflector 5 with the convex surface upward on the support legs of the turning table 11, the short connecting plates 2 will not interfere with the middle support leg 12 on the turning table 11. After the transfer clamp exits and the second 180° turning is performed to return to the original position, the long connecting plates 4 of the third and fourth sets of clamping mechanisms are above the air deflector 5 with the convex surface upward, and the long connecting plates 4 will not interfere with the support legs on the turning table 11 when the air deflector 5 with the convex surface upward on the turning table 11 is clamped.

[0031] If the pressing machine already has the air deflector 5 with the convex surface upward which is pressed and solidified, the third and fourth sets of clamping mechanisms in the transfer clamp clamp the air deflector 5 with the convex surface upward which is not pressed and solidified to enter the pressing machine. When the first and second sets of clamping mechanisms at the front reach the pressing position, the air deflector 5 with the convex surface upward which is already pressed and solidified is clamped. At this moment, the four sets of clamping mechanisms in the transfer clamp clamp one air deflector respectively. That is, the first and second sets of clamping mechanisms clamp one air deflector 5 which is already pressed and solidified respectively, and the third and fourth sets of clamping mechanisms clamp one air deflector 5 which is to be pressed and solidified respectively. Then, the transfer clamp advances to the position of two air deflectors, and the third and fourth sets of clamping mechanisms place the air deflector 5 with the convex surface upward which is to be pressed and solidified on the pressing position of the pressing machine. Then, the transfer clamp carrying the air deflector 5 which is already pressed and solidified exits, and the pressing machine starts a new round of pressing. The setting of the transfer clamp enables the robot to complete the actions of taking and placing materials in one step without increasing other redundant actions, thereby greatly shortening the transfer cycle and improving the production efficiency.

[0032] In order to avoid the interference between the connecting plate of the clamping mechanism and the supporting leg 10, 12 on the turnover table 11 during the turnover process, the connecting plate of the four sets of clamping mechanisms can adopt the short connecting plate 2 clamping mechanism. Please combine Figure 3 When the long connecting plate 4 of the third and fourth sets of clamping mechanisms is replaced by the short connecting plate 2 structure, the wind deflector 5 with the convex surface upwards can also be clamped and moved to be carried into the pressing machine smoothly, and the interference with the supporting leg on the turnover table 11 will not occur. The four sets of clamping mechanisms all adopt the short connecting plate 2 clamping mechanism, which can reduce the types of connecting plates, reduce the manufacturing cost, and improve the universality of parts.

[0033] In addition to the transfer clamp with four sets of clamping mechanisms shown in the second embodiment of the present application, as long as the running tempo of the automatic production line or the stable and reliable clamping and the capacity of the pressing machine are met, the transfer clamp can also be provided with two sets of clamping mechanisms, or six sets of clamping mechanisms, etc. Because the even number of sets of clamping mechanisms are provided, the robot can complete the actions of taking and placing materials in one step, the transfer tempo is shortened to the maximum extent, and the production efficiency is improved.

[0034] The clamping mechanism of the transfer clamp of the present application can clamp the wind deflector through the cooperation of the clamping jaws 15 at the lower end of the clamping hooks on both sides of the pneumatic opening clamp 6 clamping the both sides of the plate and the suction disc 3 pressing the plate. That is, through the three-point cooperation of the wind deflector, a stable force triangle is formed, so that the plate can be clamped efficiently and reliably to perform various complex process actions, and the processing quality of the product can be guaranteed. Thus, the work of manually feeding or taking out the plate into or out of the pressing machine is replaced, and the high-risk operation is avoided. When the transfer clamp with an even number of sets of clamping mechanisms is used, multiple components can be simultaneously processed and transferred. After being fed into the pressing machine, the components of the front and rear processing batches can also be exchanged to shorten the production tempo and improve the production efficiency.

[0035] The above only describes the embodiments of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A transfer fixture, comprising a support frame consisting of two crossbeams, and a robot flange disposed at one end of the support frame, characterized in that, The front end of the crossbeam is provided with at least one set of short connecting plate clamping mechanisms, wherein the connecting plate is formed by two short connecting plates axially spaced apart; corresponding to the number of short connecting plate clamping mechanisms, a long connecting plate clamping mechanism is also provided, wherein the connecting plate is a single long connecting plate, and both the long and short connecting plates are arranged intersecting the crossbeam; each connecting plate under the two crossbeams is provided with a set of pneumatic opening clamps and multiple suction cups evenly distributed on the long and short connecting plates; the component is a long strip plate, bent in a direction perpendicular to the axial direction of the long strip plate. The component is an arc-shaped plate, with the suction cup vertically positioned at the top. The pneumatic opening clamp includes hooks on both sides, with grippers at the lower ends. The hooks can grip the two sides of the component laterally, and the grippers can support the lower surfaces of the two sides of the component. The shape of the grippers corresponds to the shape of the lower surfaces of the arc-shaped plate being gripped. The pneumatic opening clamp grips and supports the two sides of the component, and the suction cup presses downward against the upper surface of the component, forming an actuator that acts on the component from three points.

2. The transfer fixture as described in claim 1, characterized in that, The clamping mechanism can be moved along the axial direction of the crossbeam to adjust its position.

3. The transfer fixture as described in claim 1, characterized in that, The clamping mechanism consists of four sets. The first and second sets of clamping mechanisms located at the front end of the crossbeam are the short connecting plate clamping mechanisms, and the adjacent third and fourth sets of clamping mechanisms are the long connecting plate clamping mechanisms.

4. The transfer fixture as described in claim 1, characterized in that, The pneumatic opening clamp also includes a cylinder, and the two ends of the piston shaft of the cylinder are respectively connected to the hooks. The lower end of the hook is the gripper. Under the drive of the air pump, the hook can open or close laterally to clamp the two sides of the component.

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