A vacuum adsorption fixture and a laser cutting platform

Abstract

This utility model discloses a vacuum adsorption fixture and a laser cutting platform. The vacuum adsorption fixture includes a cover plate, an adsorption plate, and a base plate. The cover plate has several first contoured through holes, the adsorption plate has a placement groove, and the adsorption plate has several second contoured through holes. A negative pressure groove is provided on the side of the adsorption plate opposite to the placement groove. Several adsorption holes are provided on the adsorption plate at the bottom of the placement groove, and the adsorption holes communicate with the negative pressure groove. The negative pressure groove and the adsorption holes are all offset from the second contoured through holes. A connecting hole is provided on the base plate, and the connecting hole connects with the negative pressure channel. The laser cutting platform includes a positioning base and a vacuum adsorption fixture. The positioning base has a positioning groove, and a negative pressure hole is provided at the bottom of the positioning groove, which communicates with the connecting hole. This utility model uses the adsorption holes on the fixture plate to adsorb the cover plate, thereby fixing the FPC and improving processing efficiency. Furthermore, the positioning components of the laser cutting platform achieve precise positioning of the fixture plate.

Description

Technical Field

[0001] This utility model relates to the field of FPC processing technology, specifically to a vacuum adsorption fixture and a laser cutting platform. Background Technology

[0002] FPC (Flexible Printed Circuit) is a type of flexible electronic interconnect component made from a flexible substrate (such as polyimide PI, polyester PET, etc.) through processes such as etching. It is lightweight, flexible, and resistant to high and low temperatures, and is widely used in consumer electronics, automotive electronics, medical devices, and other fields.

[0003] In the laser cutting of FPC boards, a fixture is required to fix the FPC board. In the existing technology, a cover plate is used to fix the FPC board. The cover plate is removed during processing and replaced after processing, which is cumbersome and has low processing efficiency. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a vacuum adsorption fixture and a laser cutting platform. The FPC board is fixed by adsorbing the cover plate through the adsorption holes on the fixture plate, eliminating the need to remove and place the cover plate, thus improving processing efficiency.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A vacuum adsorption fixture includes a cover plate, an adsorption plate, and a base plate. The cover plate has a plurality of first contoured through holes. The adsorption plate has a placement groove for accommodating the cover plate. The bottom of the placement groove has a plurality of second contoured through holes. A negative pressure groove is provided on the side of the adsorption plate opposite to the placement groove. The bottom of the placement groove has a plurality of adsorption holes that communicate with the negative pressure groove. The negative pressure groove and the adsorption holes are all offset from the second contoured through holes. The base plate is connected to the side of the adsorption plate opposite to the placement groove. A negative pressure channel is formed between the negative pressure groove and the base plate. The base plate has a connecting hole that connects to the negative pressure channel.

[0006] As a further improvement to the above technical solution, the negative pressure groove includes a main negative pressure groove disposed on both sides of the placement groove along the axial direction and a plurality of secondary negative pressure grooves connected between the two main negative pressure grooves, and a plurality of adsorption holes are connected to the secondary negative pressure grooves.

[0007] As a further improvement to the above technical solution, the adsorption plate is provided with a plurality of mounting holes, and a magnet is provided in the mounting holes for adsorbing the cover plate.

[0008] The technical solution also provided by this utility model is: A laser cutting platform includes a positioning base and a vacuum adsorption fixture. The positioning base has a positioning groove, the length of which is the same as the length of the vacuum adsorption fixture. A negative pressure hole is provided at the bottom of the positioning groove. A vacuum channel is provided in the positioning base, and the vacuum channel communicates with the negative pressure hole. The vacuum channel is connected to a negative pressure pipe connector. When the vacuum adsorption fixture is placed in the positioning groove, the negative pressure hole communicates with the connecting hole.

[0009] As a further improvement to the above technical solution, a positioning component is provided on the positioning base. The positioning component is used to make the negative pressure hole and the connection hole coaxial when the vacuum adsorption fixture is placed in the positioning groove.

[0010] As a further improvement to the above technical solution, the positioning component includes a first positioning block and a second positioning block. The first positioning block is fixedly connected to the positioning base and is used to position one side of the vacuum adsorption fixture in the width direction. The second positioning block is connected to a driving member, which is used to drive the second positioning block to move towards the first positioning block and to position the other side of the vacuum adsorption fixture in the width direction.

[0011] As a further improvement to the above technical solution, the positioning component further includes a third positioning block, which is located on the same side as the first positioning block. The third positioning block is provided with a first inclined surface, and the vacuum adsorption fixture is provided with a second inclined surface. When the vacuum adsorption fixture moves toward the third positioning block, the first inclined surface and the second inclined surface cooperate to drive the vacuum adsorption fixture to move downward.

[0012] As a further improvement to the above technical solution, the second positioning block is provided with a third inclined surface, and the vacuum adsorption fixture is provided with a fourth inclined surface. When the driving member drives the second positioning block to move toward the vacuum adsorption fixture, the third inclined surface and the fourth inclined surface cooperate to drive the vacuum adsorption fixture to move downward.

[0013] As a further improvement to the above technical solution, the driving component includes a first cylinder, and the second positioning block is disposed at the telescopic end of the first cylinder. The first cylinder is used to drive the second positioning block to move along the length direction of the vacuum adsorption fixture.

[0014] As a further improvement to the above technical solution, the driving component also includes a second cylinder, which is fixedly connected to the side wall of the positioning base. The first cylinder is connected to the telescopic end of the second cylinder. The second cylinder is used to drive the first cylinder to move in the vertical direction. The bottom of the positioning groove is provided with a receiving groove. When the second positioning block is in the initial state, it is located in the receiving groove, and the height of the second positioning block is lower than the bottom surface of the positioning groove.

[0015] The beneficial effects of this utility model are: 1. The FPC board is adsorbed through the adsorption holes on the fixture plate. The cover plate is made of iron plate and is attracted by magnets, thereby clamping the FPC board between the adsorption plate and the cover plate for fixation. Both the cover plate and the adsorption plate are provided with contoured through holes to facilitate the laser cutting of the FPC board. This eliminates the need for repeated removal and placement of the cover plate, thus improving processing efficiency.

[0016] 2. The positioning components of the laser cutting platform are used to achieve precise positioning of the fixture board, ensuring that the negative pressure hole and the connection hole are connected, thereby ensuring the adsorption effect of the adsorption hole on the FPC board and facilitating the precise processing of the FPC board. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is an assembly diagram of the vacuum adsorption fixture in an embodiment of this utility model; Figure 2 This is a structural breakdown of the vacuum adsorption fixture in the embodiments of this utility model. Figure 1 ; Figure 3 This is a structural breakdown of the vacuum adsorption fixture in the embodiments of this utility model. Figure 2 ; Figure 4 This is a bottom view of the adsorption plate of the vacuum adsorption fixture in this embodiment of the utility model; Figure 5 This is an assembly diagram of the laser cutting platform in an embodiment of this utility model; Figure 6 This is a schematic diagram of the positioning base of the laser cutting platform in this embodiment of the present invention; Figure 7 This is a cross-sectional view of the vacuum channel of the laser cutting platform in an embodiment of this utility model; Figure 8 This is a schematic diagram showing the cooperation between the third positioning block of the laser cutting platform and the vacuum adsorption fixture in an embodiment of this utility model; Figure 9 This is a schematic diagram showing the cooperation between the second positioning block of the laser cutting platform and the vacuum adsorption fixture in an embodiment of this utility model.

[0019] Reference numerals: 100, Vacuum adsorption fixture; 110, Adsorption plate; 111, Placement groove; 112, Second contoured through hole; 113, Fourth positioning block; 1131, Second inclined surface; 114, Fifth positioning block; 1141, Fourth inclined surface; 115, Main negative pressure groove; 116, Secondary negative pressure groove; 117, Mounting hole; 118, Adsorption hole; 120, Base plate; 121, Magnet; 122, Connecting hole; 123. 200, clearance opening; 300, cover plate; 310, positioning base; 311, positioning plate; 312, opening; 313, negative pressure hole; 314, receiving groove; 315, vacuum channel; 320, positioning strip; 330, first positioning block; 340, third positioning block; 341, first inclined surface; 350, second positioning block; 351, third inclined surface; 360, first cylinder; 370, second cylinder. Detailed Implementation

[0020] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0021] Reference Figures 1-4An embodiment of this utility model provides a vacuum adsorption fixture 100, including a cover plate 200, an adsorption plate 110, and a base plate 120. The adsorption plate 110 is provided with a placement groove 111 for accommodating an FPC board and the cover plate 200. The cover plate is provided with a plurality of first contoured through holes. The adsorption plate 110 is provided with a plurality of second contoured through holes 112 at the bottom of the placement groove 111. The FPC board is clamped between the adsorption plate and the cover plate. The first contoured through holes are located directly above the second contoured through holes 112, thereby facilitating the processing of the FPC board. The adsorption plate 110 has a negative pressure groove on the side opposite to the placement groove 111. The adsorption plate 110 has a plurality of adsorption holes 118 at the bottom of the placement groove 111. The adsorption holes 118 are connected to the negative pressure groove. The negative pressure groove and the adsorption holes 118 are both offset from the second contoured through hole 112. The bottom plate 120 is connected to the side of the adsorption plate 110 opposite to the placement groove 111. A negative pressure channel is formed between the negative pressure groove and the bottom plate. The bottom plate 120 has a connecting hole 122 connected to the negative pressure channel. The bottom plate 120 has a clearance opening 123 located directly below the second contoured through hole 112.

[0022] It is understood that when the vacuum adsorption fixture 100 is in use, the connecting hole 122 can be connected to an external vacuum device, thereby generating negative pressure in the negative pressure channel and adsorption hole 118, which in turn adsorbs and fixes the FPC board in the placement groove 111, and then the cover plate 200 presses the FPC board down. This facilitates the laser cutting of the FPC board and saves the operation of repeatedly taking the cover plate 200 out of the existing technology, greatly improving the processing efficiency.

[0023] Furthermore, the negative pressure groove includes a negative pressure main groove 115 disposed on both sides of the placement groove 111 along the axial direction and a plurality of negative pressure secondary grooves 116 connected between the two negative pressure main grooves 115. Each negative pressure secondary groove 116 is connected to a plurality of adsorption holes 118, so that multiple products (products after laser cutting of FPC board) in the same row can be adsorbed.

[0024] In this embodiment, the adsorption plate 110 is provided with multiple mounting holes 117, and a magnet 121 is disposed in each mounting hole 117. The cover plate 200 is made of a magnetic material, such as an iron plate. When the cover plate 200 is placed in the placement groove 117 to press down the FPC plate, the FPC plate is pressed tightly under the attraction of the magnet 121, improving stability. The adsorption force on the cover plate 200 can be adjusted by increasing or decreasing the number of magnets 121. The adsorption plate 110 and the base plate 120 are connected by bolts, facilitating the installation and removal of the adsorption plate 110 and the base plate 120. It can be understood that the surfaces of the adsorption plate 110 and the base plate 120 that connect to each other have a high degree of smoothness, ensuring that the negative pressure channel formed after their tight fit will not easily leak. Additionally, sealant can be added between them to ensure the negative pressure effect of the negative pressure channel and the adsorption hole 118.

[0025] Reference Figures 5-9 This utility model provides a laser cutting platform, including a vacuum adsorption fixture 100 and a positioning base 300. The positioning base 300 includes a positioning plate 310 with an opening 311. When the vacuum adsorption fixture 100 is mounted on the positioning base 300, the opening 311 is located directly below the FPC board. The positioning plate 310 has two opposing positioning strips 320, forming a positioning groove between them. The length direction of the positioning groove is the same as the length direction of the vacuum adsorption fixture 100. The vacuum adsorption fixture 100 is fitted into the positioning groove to achieve the installation of the vacuum adsorption fixture 100 and the positioning base 300 to form the laser cutting platform.

[0026] Reference Figure 7 The bottom of the positioning groove is provided with a negative pressure hole 312, and the positioning plate 310 is provided with a vacuum channel 315. The vacuum channel 315 is connected to the negative pressure hole 312, and the vacuum channel 315 is connected to a negative pressure pipe connector 313. The negative pressure pipe connector 313 is connected to an external vacuum device. When the vacuum adsorption fixture 100 is placed in the positioning groove, the negative pressure hole 312 is connected to the connecting hole 122. The air pressure of the vacuum channel 315 and the negative pressure channel can be controlled by the external vacuum device, thereby controlling the vacuum or breaking the vacuum at the adsorption hole 118, so as to realize the adsorption and fixation or release of the FPC board.

[0027] Furthermore, refer to Figure 6The positioning plate 310 is equipped with a positioning component. This component ensures that the negative pressure hole 312 and the connecting hole 122 are coaxial when the vacuum adsorption fixture 100 is placed in the positioning groove, thus guaranteeing the unobstructed flow of negative pressure airflow. Specifically, the positioning component includes a first positioning block 330 and a second positioning block 350. The first positioning block 330 is fixedly connected to the positioning base 300 and is used to position one side of the vacuum adsorption fixture 100 in the width direction. The second positioning block 350 is connected to a driving member, which drives the second positioning block 350 to move towards the first positioning block 330 to position the other side of the vacuum adsorption fixture 100 in the width direction. By positioning the two wide sides of the vacuum adsorption fixture 100 using the first positioning block 330 and the second positioning block 350, precise positioning of the vacuum adsorption fixture 100 is achieved.

[0028] In this embodiment, the driving component includes a first cylinder 360 and a second cylinder 370. The second positioning block 350 is disposed at the telescopic end of the first cylinder 360. When the first cylinder 360 telescopically extends or retracts, it drives the second positioning block 350 to move along the length direction of the vacuum adsorption fixture 100. The second cylinder 370 is fixedly connected to the side wall of the positioning base 300. The first cylinder 360 is connected to the telescopic end of the second cylinder 370. The second cylinder 370 is used to drive the first cylinder 360 to move in the vertical direction. The bottom of the positioning groove is provided with a receiving groove 314. When the second positioning block 350 is in the initial state, it is located in the receiving groove 314, and the height of the second positioning block 350 is lower than the bottom surface of the positioning groove, thereby avoiding the installation action of the vacuum adsorption fixture 100. After the vacuum adsorption fixture 100 is installed in the positioning groove, the second cylinder 370 drives the first cylinder 360 to move upward until the second positioning block 350 corresponds to the height of the vacuum adsorption fixture 100. Then the first cylinder 360 drives the second positioning block 350 to move towards the vacuum adsorption fixture 100 to push the vacuum adsorption fixture 100 to move and achieve positioning.

[0029] In a preferred embodiment, refer to Figure 8 The positioning component further includes a third positioning block 340, which is located on the same side as the first positioning block 330. The third positioning block 340 is provided with a first inclined surface 341. The vacuum adsorption fixture 100 has a first slot, in which a fourth positioning block 113 is fixedly connected. The fourth positioning block 113 is provided with a second inclined surface 1131 (which can be an arc surface). When the vacuum adsorption fixture 100 moves towards the third positioning block 340, the first inclined surface 341 and the second inclined surface 1131 cooperate to drive the vacuum adsorption fixture 100 to move downward. (Refer to...) Figure 9The second positioning block 350 is provided with a third inclined surface 351. The vacuum adsorption fixture 100 has a second slot, in which a fifth positioning block 114 is fixedly connected. The fifth positioning block 114 is provided with a fourth inclined surface 1141 (which can be an arc surface). When the driving member drives the second positioning block 350 to move toward the vacuum adsorption fixture 100, the third inclined surface 351 and the fourth inclined surface 1141 cooperate to drive the vacuum adsorption fixture 100 to move downward.

[0030] It is understandable that when the first cylinder 360 drives the second positioning block 350 to move the vacuum adsorption fixture 100, the third positioning block 340 and the second positioning block 350 press down on both sides of the vacuum adsorption fixture 100 respectively, so that the bottom plate 120 of the vacuum adsorption fixture 100 is accurately positioned and tightly attached to the upper surface of the positioning plate 310, thereby ensuring the reliability of the connection between the connecting hole 122 and the negative pressure hole 312, that is, avoiding the situation where there is a gap between the bottom plate 120 and the positioning plate 310, which would cause air leakage.

[0031] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A vacuum chuck comprising a cover plate, a chuck plate and a base plate, the cover plate is provided with a plurality of first profiling through holes, the chuck plate is provided with a placing groove for accommodating the cover plate, the cover plate is covered in the placing groove, the bottom of the placing groove is provided with a plurality of second profiling through holes, characterized in that: A negative pressure groove is provided on the side of the adsorption plate away from the placement groove. Several adsorption holes are provided on the adsorption plate at the bottom of the placement groove. The adsorption holes are connected to the negative pressure groove. The negative pressure groove and the adsorption holes are both offset from the second contoured through hole. The bottom plate is connected to the side of the adsorption plate away from the placement groove. A negative pressure channel is formed between the negative pressure groove and the bottom plate. A connecting hole is provided on the bottom plate. The connecting hole is connected to the negative pressure channel.

2. The vacuum adsorption fixture according to claim 1, characterized in that: The negative pressure groove includes a main negative pressure groove disposed on both sides of the placement groove along the axial direction and a plurality of secondary negative pressure grooves connected between the two main negative pressure grooves, and a plurality of adsorption holes are connected to the secondary negative pressure grooves.

3. The vacuum adsorption fixture according to claim 1, characterized in that: The adsorption plate is provided with multiple mounting holes, and a magnet is provided in each mounting hole. The magnet is used to attract the cover plate.

4. A laser cutting platform, characterized in that: The device includes a positioning base and a vacuum adsorption fixture as described in any one of claims 1-3. The positioning base is provided with a positioning groove, the length direction of which is the same as the length direction of the vacuum adsorption fixture. A negative pressure hole is provided at the bottom of the positioning groove. A vacuum channel is provided in the positioning base, the vacuum channel is connected to the negative pressure hole, and the vacuum channel is connected to a negative pressure pipe connector. When the vacuum adsorption fixture is placed in the positioning groove, the negative pressure hole is connected to the connecting hole.

5. The laser cutting platform according to claim 4, characterized in that: The positioning base is provided with a positioning component, which is used to make the negative pressure hole and the connection hole coaxial when the vacuum adsorption fixture is placed in the positioning groove.

6. The laser cutting platform according to claim 5, characterized in that: The positioning component includes a first positioning block and a second positioning block. The first positioning block is fixedly connected to the positioning base and is used to position one side of the vacuum adsorption fixture in the width direction. The second positioning block is connected to a driving member, which is used to drive the second positioning block to move towards the first positioning block and to position the other side of the vacuum adsorption fixture in the width direction.

7. The laser cutting platform according to claim 5, characterized in that: The positioning component further includes a third positioning block, which is located on the same side as the first positioning block. The third positioning block is provided with a first inclined surface, and the vacuum adsorption fixture is provided with a second inclined surface. When the vacuum adsorption fixture moves toward the third positioning block, the first inclined surface and the second inclined surface cooperate to drive the vacuum adsorption fixture to move downward.

8. The laser cutting platform according to claim 6, characterized in that: The second positioning block is provided with a third inclined surface, and the vacuum adsorption fixture is provided with a fourth inclined surface. When the driving member drives the second positioning block to move towards the vacuum adsorption fixture, the third inclined surface and the fourth inclined surface cooperate to drive the vacuum adsorption fixture to move downward.

9. The laser cutting platform according to claim 6, characterized in that: The driving component includes a first cylinder, and a second positioning block is disposed at the telescopic end of the first cylinder. The first cylinder is used to drive the second positioning block to move along the length direction of the vacuum adsorption fixture.

10. The laser cutting platform according to claim 9, characterized in that: The driving component also includes a second cylinder, which is fixedly connected to the side wall of the positioning base. The first cylinder is connected to the telescopic end of the second cylinder. The second cylinder is used to drive the first cylinder to move in the vertical direction. The bottom of the positioning groove is provided with a receiving groove. When the second positioning block is in the initial state, it is located in the receiving groove, and the height of the second positioning block is lower than the bottom surface of the positioning groove.

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