High-precision automatic punching device

Abstract

The utility model discloses a high-precision automatic punching device, including: a base, a positioning mechanism and a punching mechanism, a carrier for placing a product to be punched is provided on the top of the base, the positioning mechanism is used to position the product on the carrier; the punching mechanism includes a bearing plate, a push rod slidably inserted on the bearing plate, a punching drive device connected to the push rod, a transmission assembly movably arranged on the bearing plate, and an upper knife and a lower knife distributed on both sides of the part to be punched of the product, the punching drive device is used to drive the push rod to move, and push the upper knife to cooperate with the lower knife to punch the product through the transmission assembly. The utility model can conveniently clamp and position the product, the punching of the product is not easy to deform, the accuracy and quality of the punching can be guaranteed, the punching efficiency is improved, and the equipment cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of punching devices, in particular to a high-precision automatic punching device. Background Art

[0002] In the production and manufacturing of parts, in order to meet the various functional requirements of the parts, various processing is required for the parts, among which punching operations on parts are more common.

[0003] At present, the existing technology for punching parts generally uses a punching machine. After the raw materials are installed, the parts are punched by a punching die driven by a power device. When using a punching machine to punch parts, it is not easy to clamp and position the parts to be punched, and the metal material will be squeezed and stretched during punching, which is easy to deform. Especially for some thin-walled parts, the punching deformation will be more obvious, affecting the accuracy and quality of the parts. At the same time, the equipment cost is also high. Therefore, it is necessary to improve the existing technology to overcome the defects in the existing technology. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a high-precision automatic punching device to overcome the defects of using a punching machine to punch parts, which makes it difficult to clamp and position the parts, is prone to deformation, and has high equipment cost.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a high-precision automatic punching device, comprising:

[0006] A base, the top of which is provided with a platform for placing the product to be punched;

[0007] A positioning mechanism, used for positioning the product on the carrier;

[0008] The punching mechanism includes a supporting plate, a push rod slidably inserted on the supporting plate, a punching drive device connected to the push rod, a transmission assembly movably arranged on the supporting plate, and an upper knife and a lower knife distributed on both sides of the part to be punched on the product. The punching drive device is used to drive the push rod to move, and push the upper knife to cooperate with the lower knife to punch the product through the transmission assembly.

[0009] As a further improvement of the utility model, the punching mechanism is slidably mounted on the base, and a pushing drive device connected to the punching mechanism is fixed on the base, and the pushing drive device is used to drive the punching mechanism to move toward the product, and make the supporting plate and the push rod, the transmission assembly and the upper knife thereon extend into the interior of the product.

[0010] As a further improvement of the present invention, the transmission assembly includes a pressure plate and an upper knife seat, the upper knife seat is fixedly connected to the pressure plate, and the upper knife is fixed on the upper knife seat, and when the push rod is driven out by the punching drive device, the push rod can apply pressure to the pressure plate and drive the upper knife seat and the upper knife to move toward the lower knife; wherein the movement direction of the push rod is perpendicular to the movement direction of the upper knife.

[0011] As a further improvement of the utility model, a roller is provided on the upper shaft of the pressure plate, an inclined surface is provided on the push rod, the roller is in rolling contact with the inclined surface, and the push rod cooperates with the roller by relying on the inclined surface to apply pressure to the pressure plate.

[0012] As a further improvement of the utility model, the pressure plate and the upper tool seat are fixedly connected by a guide column, and the guide column is slidably fitted with the supporting plate, and a return spring is installed between the pressure plate and the supporting plate, and the return spring is used to apply an elastic force to the pressure plate in the direction away from the upper tool seat.

[0013] As a further improvement of the utility model, a floating stripping block and a stripping spring for applying an elastic force to the stripping block in the direction of the lower knife are installed on the upper knife seat, and the stripping block is used to press the product when the upper knife is reset.

[0014] As a further improvement of the present invention, the punching mechanism also includes a mounting plate, and the lower knife is fixed on the mounting plate; a gap is left between the mounting plate and the supporting plate for the part to be punched of the product to be inserted, so that the part to be punched of the product can be between the upper knife and the lower knife.

[0015] As a further improvement of the utility model, the positioning mechanism includes a first positioning cylinder arranged on one side of the carrier, a first pushing block installed on the first positioning cylinder, and a first positioning block fixed on the other side of the carrier, and the first positioning cylinder is used to drive the first pushing block to push the product on the carrier to be against the first positioning block.

[0016] As a further improvement of the present invention, the positioning mechanism also includes a second positioning cylinder arranged on the other side of the carrier and a second push block installed on the second positioning cylinder. A second positioning block is provided on the mounting plate. The second positioning cylinder is used to drive the second push block to push the product on the carrier to be against the second positioning block.

[0017] As a further improvement of the present invention, two punching mechanisms are provided and symmetrically distributed on the outer sides of both ends of the carrier.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model provides a high-precision automatic punching device, which uses a positioning mechanism to position the product placed on the carrier, uses a punching drive device to drive the push rod to move, and uses a transmission component to push the upper knife to cooperate with the lower knife to punch the product. This technical solution can facilitate the clamping and positioning of the product, and the punching of the product is not easy to deform. It can also ensure the accuracy and quality of the punching, improve the punching efficiency, and the equipment cost is low, which is conducive to cooperating with other external devices to realize multi-process automated processing of the product;

[0020] 2. The punching mechanism is driven by the push-in drive device to move toward the product, so that the carrying plate and the push rod, transmission assembly and upper knife thereon are all extended into the interior of the product, so that the part of the product to be punched can be between the upper knife and the lower knife, and the punching operation of thin-walled tubular products can be realized;

[0021] 3. The utility model first drives the first pushing block by the first positioning cylinder to push the product on the carrier against the first positioning block, and performs preliminary positioning of the product so that the left and right ports of the product are directly opposite to the bearing plates of the two punching mechanisms; when the two pushing driving devices respectively drive the two punching mechanisms to move so that the bearing plates extend into the interior of the product, the third positioning block on the bearing plate is used to position the product in the long side direction; then the second positioning cylinder drives the second pushing block to push the product against the second positioning block of the mounting plate, so that the outer wall of the product is close to the lower knife, and the final positioning before punching is completed. This method can ensure the accuracy of product positioning and improve the punching effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a punched product of the utility model;

[0023] Figure 2 This is a three-dimensional diagram of the high-precision automatic punching device of the utility model;

[0024] Figure 3 For this utility model Figure 2 A magnified view of middle;

[0025] Figure 4 A three-dimensional diagram of the punching mechanism of the high-precision automatic punching device of the utility model;

[0026] Figure 5 This is a cross-sectional view of the punching mechanism of the high-precision automatic punching device of the utility model inserted into the product;

[0027] Figure 6 For this utility model Figure 5 Enlarged view of B.

[0028] Combined with the accompanying drawings, the following description is given:

[0029] 1. Base; 11. Carrier; 2. Positioning mechanism; 21. First positioning cylinder;

[0030] 22. First push block; 23. First positioning block; 24. Second positioning cylinder; 25. Second push block; 3. Punching mechanism; 31. Carrying plate; 311. Third positioning block; 32. Push rod; 321. Inclined surface; 33. Punching drive device; 34. Transmission assembly; 341. Pressing plate; 342. Upper knife seat; 343. Roller; 344. Guide column; 345. Reset spring; 346. Stripping block; 347. Stripping spring; 35. Upper knife; 36. Lower knife; 37. Mounting plate; 371. Second positioning block; 38. Lower knife seat; 39. Cylinder fixing plate; 310. Guide block; 4. Push-in drive device; 100. Product. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0032] The utility model provides a high-precision automatic punching device, which is used for punching a through hole of a required size on the side wall of a product 100.

[0033] like Figure 1 As shown, product 100 is a rectangular thin-walled metal pipe. For ease of understanding, the extension direction of the long side of the flat product 100 is defined as the left-right direction, and the extension direction of the wide side is defined as the front-back direction. The part of product 100 to be punched is the front side wall / rear side wall of product 100.

[0034] It should be noted that although the product 100 in this embodiment is a rectangular thin-walled metal pipe, it does not mean that the present invention is limited to this specific implementation. Without departing from the scope of the technical solution of the present invention, many possible changes and modifications can be made to the technical solution of the present invention, or it can be modified into an equivalent embodiment with equivalent changes to clamp and position the same type of products.

[0035] See also Figures 2 to 6The utility model high-precision automatic punching device includes: a base 1, a positioning mechanism 2 and a punching mechanism 3. A carrier 11 is provided in the middle position on the top of the base 1, and the product 100 to be punched is placed flat on the carrier 11. The positioning mechanism 2 is installed on the base 1, and is used to position the product 100 placed on the carrier 11. The punching mechanism 3 includes a carrying plate 31, a push rod 32 slidably inserted on the carrying plate 31, a punching drive device 33 connected to the push rod 32, a transmission assembly 34 movably arranged on the carrying plate 31, and an upper knife 35 and a lower knife 36 distributed on both sides of the part to be punched of the product 100. The punching drive device 33 is used to drive the push rod 32 to move, and push the upper knife 35 to cooperate with the lower knife 36 through the transmission assembly 34 to punch the product 100. The utility model adopts this technical solution to punch the product 100, which is convenient for clamping and positioning the product 100. The punched product 100 is not easy to deform, and the accuracy and quality of the punching can be guaranteed. The punching efficiency is high, the equipment cost is low, and it is conducive to cooperating with other external devices (such as milling surface processing devices) to realize multi-step automated processing of the product 100.

[0036] See also Figure 2 A slide rail is fixed on the base 1 along the length direction of the product 100, and the punching mechanism 3 is slidably mounted on the slide rail of the base 1. In addition, a push-in driving device 4 connected to the punching mechanism 3 is also fixed on the base 1. The push-in driving device 4 is used to drive the punching mechanism 3 to move along the slide rail toward the product 100, and make the carrying plate 31 and the push rod 32, the transmission assembly 34 and the upper knife 35 thereon all extend into the interior of the product 100, while the lower knife 36 is located outside the product 100.

[0037] See also Figure 4 The punching mechanism 3 further includes a mounting plate 37 and a cylinder fixing plate 39, the lower knife 36 is fixed on the mounting plate 37 through a lower knife seat 38, and the punching drive device 33 is fixed on the cylinder fixing plate 39. The mounting plate 37 and the cylinder fixing plate 39 are both distributed in the vertical direction and vertically connected to each other, the bearing plate 31 is distributed in the horizontal direction and is at a right angle formed by the mounting plate 37 and the cylinder fixing plate 39, and the bearing plate 31 is fixedly connected to the mounting plate 37 and the cylinder fixing plate 39 at the same time.

[0038] See also Figure 5 , a gap is left between the mounting plate 37 and the carrying plate 31. When the push-in drive device 4 drives the punching mechanism 3 to move toward the product 100, the carrying plate 31 and the push rod 32, the transmission assembly 34 and the upper knife 35 thereon all extend into the interior of the product 100, the mounting plate 37 and the lower knife 36 and the lower knife seat 38 thereon are still outside the product 100, and the part of the product 100 to be punched (that is, the rear side wall of the product 100) is inserted into the gap, so that the part of the product 100 to be punched can be between the upper knife 35 and the lower knife 36.

[0039] It is worth mentioning that a guide block 310 is fixed to the end of the carrier plate 31 facing the product 100 , and under the guidance of the guide block 310 , the carrier plate 31 can smoothly enter the product 100 .

[0040] Optionally, both the punching drive device 33 and the pushing drive device 4 are cylinders.

[0041] In this embodiment, two punching mechanisms 3 are provided, symmetrically distributed on the left and right outer sides of the carrier 11; accordingly, two push-in driving devices 4 are fixed on the left and right ends of the base 1, respectively connected to the two punching mechanisms 3. The two punching mechanisms 3 are respectively driven by the two push-in driving devices 4 to extend from the left and right ends of the product 100, so as to punch two through holes in the product 100 at the same time, thereby improving efficiency.

[0042] See also Figure 5 and Figure 6 The transmission assembly 34 includes a pressing plate 341 and an upper knife seat 342. The front and rear sides of the carrier plate 31 are provided with accommodating grooves. The pressing plate 341 and the upper knife seat 342 are respectively arranged in the two accommodating grooves, and the pressing plate 341 and the upper knife seat 342 are fixedly connected by a guide column 344. The guide column 344 slides through the carrier plate 31 to improve the stability of the movement. The upper knife 35 is fixed on the upper knife seat 342 and arranged opposite to the lower knife 36. When the push rod 32 is driven to extend by the punching drive device 33, the push rod 32 can apply pressure to the pressing plate 341 and drive the upper knife seat 342 and the upper knife 35 to move toward the lower knife 36 through the guide column 344.

[0043] Furthermore, a roller 343 is provided on the upper shaft of the pressing plate 341, and a slope 321 is provided on the push rod 32, and the roller 343 rolls in contact with the slope 321. When the push rod 32 is driven to extend by the punching drive device 33, the push rod 32 cooperates with the slope 321 and the roller 343 to apply pressure to the pressing plate 341, thereby pushing the pressing plate 341, the upper knife seat 342 and the upper knife 35 to move. This method can provide greater punching force and ensure the reliability of punching.

[0044] In this embodiment, the movement direction of the push rod 32 is perpendicular to the movement direction of the upper knife 35 .

[0045] In addition, a return spring 345 is installed between the pressing plate 341 and the bearing plate 31, and the return spring 345 is used to apply an elastic force to the pressing plate 341 in the direction away from the upper knife seat 342. After punching is completed, when the push rod 32 is driven by the punching drive device 33 to withdraw backward, the pressing plate 341 drives the upper knife seat 342 and the upper knife 35 to return to their original positions under the elastic force of the return spring 345.

[0046] Furthermore, a stripping block 346 that can float forward and backward is installed on the upper knife seat 342, and a stripping spring 347 is installed between the stripping block 346 and the upper knife seat 342, and the stripping spring 347 always applies an elastic force to the stripping block 346 in the direction of the lower knife 36. A receiving hole is provided in the middle of the stripping block 346, and the upper knife 35 is located in the receiving hole, and in a natural state, a side of the stripping block 346 facing the lower knife 36 should protrude from a side of the upper knife 35 facing the lower knife 36. In this way, when the push rod 32 is driven out by the punching drive device 33 and drives the transmission assembly 34 to move, the stripping block 346 will first be placed on the inner wall of the product 100, and then the upper knife 35 will contact the product 100 and cooperate with the lower knife 36 to start punching. During this period, the stripping spring 347 will be further compressed, and the stripping block 346 will cooperate with the mounting plate 37 to clamp and position the product 100, thereby improving the punching effect; and after the punching is completed, the pressure plate 341 drives the upper knife seat 342 and the upper knife 35 to reset under the elastic force of the reset spring 345. In the initial distance, the stripping block 346 will keep pressing the product 100 under the elastic force of the stripping spring 347, so that the upper knife 35 can be removed from the product 100.

[0047] See also Figure 2 and Figure 3 The positioning mechanism 2 includes a first positioning cylinder 21 arranged on the rear side of the carrier 11, a first pushing block 22 installed on the first positioning cylinder 21, and a first positioning block 23 fixed on the front side of the carrier 11. The first positioning cylinder 21 is used to drive the first pushing block 22 to push the product 100 on the carrier 11 against the first positioning block 23. In this state, the left and right ports of the product 100 can be aligned with the supporting plate 31.

[0048] In addition, the positioning mechanism 2 also includes a second positioning cylinder 24 arranged at the front side of the carrier 11 and a second push block 25 installed on the second positioning cylinder 24, and a second positioning block 371 is provided on the mounting plate 37. When the carrier plate 31 and the push rod 32, the transmission assembly 34 and the upper knife 35 thereon extend into the interior of the product 100, the second positioning cylinder 24 drives the second push block 25 to push the product 100 on the carrier 11 against the second positioning block 371. At this time, the outer wall of the product 100 is closely attached to the lower knife 36, so that the upper knife 35 and the lower knife 36 can punch holes, thereby improving the punching effect.

[0049] See also Figure 4 A third positioning block 311 is also fixedly mounted on the carrying plate 31 for positioning the product 100 in the long side direction thereof.

[0050] The working principle of the utility model high-precision automatic punching device is as follows:

[0051] First, the product 100 to be punched is placed flat on the carrier 11; secondly, the first positioning cylinder 21 drives the first push block 22 to push the product 100 on the carrier 11 against the first positioning block 23, so that the left and right ends of the product 100 are directly opposite to the supporting plates 31 of the two punching mechanisms 3; then, the two push-in drive devices 4 respectively drive the two punching mechanisms 3 to move toward the product 100 along the slide rail, so that the supporting plate 31 and the push rod 32, transmission assembly 34 and upper knife 35 thereon are all extended into the interior of the product 100, until the left and right ends of the product 100 are respectively against the third positioning blocks 311 of the two supporting plates 31; then, the first positioning cylinder 21 drives the first push block 22 to push the product 100 on the carrier 11 against the first positioning block 23, so that the left and right ends of the product 100 are respectively against the third positioning blocks 311 of the two supporting plates 31; The cylinder 21 drives the first push block 22 to reset, and the second positioning cylinder 24 drives the second push block 25 to push the product 100 against the second positioning block 371 of the mounting plate 37, so that the outer wall of the product 100 is close to the lower knife 36; then, the punching drive device 33 drives the push rod 32 to extend, and the push rod 32 relies on the inclined surface 321 to cooperate with the roller 343 to apply pressure to the pressure plate 341, thereby pushing the pressure plate 341, the upper knife seat 342 and the upper knife 35 to move, and the upper knife 35 cooperates with the lower knife 36 to punch the product 100; after the punching is completed, the punching drive device 33, the pushing drive device 4, and the second positioning block 371 are reset in sequence to take out the product 100.

[0052] It can be seen that the high-precision automatic punching device of the utility model positions the product 100 placed on the carrier 11 through the positioning mechanism 2, drives the push rod 32 to move through the punching drive device 33, and pushes the upper knife 35 to cooperate with the lower knife 36 through the transmission component 34 to punch the product 100. The adoption of this technical solution can facilitate the clamping and positioning of the product 100, and the punching of the product 100 is not easy to deform. It can also ensure the accuracy and quality of the punching, improve the punching efficiency, and the equipment cost is low, which is conducive to cooperating with other external devices to realize multi-step automated processing of the product 100; the punching mechanism 3 is driven by the push-in drive device 4 to move toward the product 100, so that the carrier plate 31 and the push rod 32, the transmission component 34 and the upper knife 35 thereon are all extended into the interior of the product 100, so that the part to be punched of the product 100 can be between the upper knife 35 and the lower knife 36, which can The punching operation of the thin-walled tubular product 100 is realized; at the same time, the utility model first drives the first push block 22 through the first positioning cylinder 21 to push the product 100 on the carrier 11 to be close to the first positioning block 23, and preliminarily positions the product so that the left and right ports of the product 100 are directly opposite to the supporting plates 31 of the two punching mechanisms 3; when the two pushing drive devices 4 respectively drive the two punching mechanisms 3 to move so that the supporting plates 31 extend into the interior of the product 100, the third positioning block 311 on the supporting plate 31 is used to position the product 100 in the long side direction; and then the second positioning cylinder 24 drives the second push block 25 to push the product 100 to be close to the second positioning block 371 of the mounting plate 37, so that the outer wall of the product 100 is close to the lower knife 36, and the final positioning before punching is completed. This method can ensure the accuracy of positioning the product 100 and improve the punching effect.

[0053] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A high-precision automatic punching device, characterized in that: include: A base (1) having a top provided with a carrier (11) for placing a product (100) to be punched; A positioning mechanism (2) for positioning the product (100) on the carrier (11); A punching mechanism (3) comprises a supporting plate (31), a push rod (32) slidably inserted on the supporting plate (31), a punching drive device (33) connected to the push rod (32), a transmission assembly (34) movably arranged on the supporting plate (31), and an upper knife (35) and a lower knife (36) distributed on both sides of a portion to be punched of a product (100), wherein the punching drive device (33) is used to drive the push rod (32) to move, and to push the upper knife (35) through the transmission assembly (34) to cooperate with the lower knife (36) to punch the product (100).

2. The high-precision automatic punching device according to claim 1, characterized in that: The punching mechanism (3) is slidably mounted on the base (1), and a push-in drive device (4) connected to the punching mechanism (3) is fixed on the base (1), and the push-in drive device (4) is used to drive the punching mechanism (3) to move toward the product (100), and to enable the supporting plate (31) and the push rod (32) thereon, the transmission assembly (34) and the upper knife (35) to extend into the interior of the product (100).

3. The high-precision automatic punching device according to claim 1, characterized in that: The transmission assembly (34) includes a pressure plate (341) and an upper knife seat (342), wherein the upper knife seat (342) is fixedly connected to the pressure plate (341), and the upper knife (35) is fixed on the upper knife seat (342). When the push rod (32) is driven to extend by the punching drive device (33), the push rod (32) can apply pressure to the pressure plate (341) and drive the upper knife seat (342) and the upper knife (35) to move toward the lower knife (36); wherein the movement direction of the push rod (32) is perpendicular to the movement direction of the upper knife (35).

4. The high-precision automatic punching device according to claim 3 is characterized in that: A roller (343) is provided on the upper shaft of the pressure plate (341), and an inclined surface (321) is provided on the push rod (32). The roller (343) is in rolling contact with the inclined surface (321), and the push rod (32) relies on the inclined surface (321) to cooperate with the roller (343) to apply pressure to the pressure plate (341).

5. The high-precision automatic punching device according to claim 3, characterized in that: The pressure plate (341) and the upper knife seat (342) are fixedly connected via a guide column (344), and the guide column (344) is slidably fitted on the supporting plate (31). A return spring (345) is installed between the pressure plate (341) and the supporting plate (31), and the return spring (345) is used to apply an elastic force to the pressure plate (341) in a direction away from the upper knife seat (342).

6. The high-precision automatic punching device according to claim 3, characterized in that: The upper knife seat (342) is provided with a floating stripping block (346) and a stripping spring (347) for applying an elastic force to the stripping block (346) in the direction of the lower knife (36). The stripping block (346) is used to press the product (100) when the upper knife (35) is reset.

7. The high-precision automatic punching device according to claim 1, characterized in that: The punching mechanism (3) further comprises a mounting plate (37), and the lower knife (36) is fixed on the mounting plate (37); a gap is left between the mounting plate (37) and the supporting plate (31) so that the part of the product (100) to be punched can be inserted, so that the part of the product (100) to be punched can be located between the upper knife (35) and the lower knife (36).

8. The high-precision automatic punching device according to claim 7, characterized in that: The positioning mechanism (2) comprises a first positioning cylinder (21) arranged on one side of the carrier (11), a first push block (22) mounted on the first positioning cylinder (21), and a first positioning block (23) fixed on the other side of the carrier (11); the first positioning cylinder (21) is used to drive the first push block (22) to push the product (100) on the carrier (11) to abut against the first positioning block (23).

9. The high-precision automatic punching device according to claim 8, characterized in that: The positioning mechanism (2) further comprises a second positioning cylinder (24) arranged on the other side of the carrier (11) and a second push block (25) mounted on the second positioning cylinder (24); a second positioning block (371) is provided on the mounting plate (37); the second positioning cylinder (24) is used to drive the second push block (25) to push the product (100) on the carrier (11) against the second positioning block (371).

10. The high-precision automatic punching device according to claim 1, characterized in that: The punching mechanisms (3) are provided with two and are symmetrically distributed outside the two ends of the carrier (11).

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