Punching jig

Abstract

The utility model provides a punching jig. The punching jig comprises a connecting plate, a supporting base, a supporting plate, a clamping assembly, a sliding block, a punching cutter and a punching driving source. The supporting seat is connected with the connecting plate, and the supporting plate is connected with the supporting seat; the clamping assembly is connected to the supporting base and used for clamping and fixing a product. The sliding block is connected with the supporting plate in a sliding mode, and the punching cutter is connected with the sliding block. And the punching driving source is connected with the connecting plate and drives the sliding block to move, so that the punching cutter cuts convex hulls on the surface of the product. The clamping device further comprises a clamping mechanism, the clamping mechanism comprises a supporting block and an abutting assembly, the supporting block is connected with the clamping assembly, and the abutting assembly is connected with the sliding block. The sliding block drives the abutting assembly to move, so that the abutting assembly and the supporting block clamp the side, away from the surface of the product, of the convex hull. The convex hulls on the product can be conveniently cut off.

Description

Technical Field

[0001] This application relates to the technical field of jigs, and in particular to a punching jig. Background Technology

[0002] Metal injection molding (MIM) is a process technology that involves uniformly mixing metal powder with an organic binder and then injecting the mixture into the desired shape using an injection molding machine. MIM combines the versatility of plastic injection molding with the strength and integrity of forged metal, enabling the production of high-density products with excellent material properties. In the MIM process, metal powder and an organic binder are first uniformly mixed to form a molding compound. This compound is then heated in the injection molding machine barrel to become a fluid, plastic material, and injected into a mold under appropriate injection pressure to form a blank. The organic binder is then removed from the blank, and the blank is subsequently sintered.

[0003] refer to Figure 1 Metal injection molding is required for production. Figure 1 Product 100 has a wall thickness of 0.7mm. The wall of Product 100 is thin and the length is relatively long. The injection gate is small and it is not easy to be molded by injection. The injection point needs to be increased with a bump 101 to facilitate molding. However, this bump 101 protrudes beyond the surface of Product 100, which affects the subsequent sintering process. Therefore, it is necessary to remove the bump 101.

[0004] In related technologies, operators generally need to use cutting tools to remove the protrusions on the product. Before cutting, the product needs to be clamped and fixed. The cutting process requires a large shearing force, resulting in high labor intensity and easy damage to the product surface if not handled properly. Utility Model Content

[0005] To facilitate the removal of protrusions on products, this application provides a punching fixture.

[0006] This application provides a punching fixture, which adopts the following technical solution:

[0007] A punching fixture, comprising:

[0008] Connecting plate;

[0009] Support base, which is connected to the connecting plate;

[0010] A support plate, which is connected to the support base;

[0011] A clamping assembly is connected to the support base and is used to clamp and fix the product.

[0012] A slider, which is slidably connected to the support plate;

[0013] A punching cutter, which is connected to the slider;

[0014] A punching drive source is connected to the connecting plate. The punching drive source drives the slider to move, so that the punching cutter cuts the convex bulge on the surface of the product.

[0015] By adopting the above technical solution, the product is first clamped and fixed by the clamping assembly, and then the punching drive source is started. The punching drive source drives the slider to slide, and the slider drives the punching cutter to remove the protrusions on the product, which improves the cutting efficiency and accuracy and reduces the damage to the product surface.

[0016] Optionally, the clamping assembly includes an X-axis positioning plate, a Y-axis positioning plate, and a Z-axis positioning plate. The X-axis positioning plate, Y-axis positioning plate, and Z-axis positioning plate are all connected to the support base. The X-axis positioning plate, Y-axis positioning plate, and Z-axis positioning plate all abut against one side of the product. The X-axis positioning plate limits the product in the X-axis direction, the Y-axis positioning plate limits the product in the Y-axis direction, and the Z-axis positioning plate limits the product in the Z-axis direction.

[0017] By adopting the above technical solution, the X-axis positioning plate can limit the product in the X-axis direction, the Y-axis positioning plate can limit the product in the Y-axis direction, and the Z-axis positioning plate can limit the product in the Z-axis direction. This achieves precise positioning and stable clamping of the product in the three directions of X, Y and Z, effectively reducing the displacement or shaking of the product during the punching process, thereby improving the accuracy of convex bulge removal and product quality.

[0018] Optionally, a clamping mechanism is also included, which includes a support block and a clamping component. The support block is connected to the clamping component, and the clamping component is connected to the slider. The slider drives the clamping component to move, so that the clamping component and the support block clamp the side of the protrusion away from the product surface.

[0019] By adopting the above technical solution, since the product of this application is manufactured by metal injection molding, cutting the protrusion requires a large shearing force. Direct punching will result in uneven force on both sides of the protrusion, easily leading to an uneven cut surface. The punching drive source of this application drives the slider to move, and the slider drives the clamping component to move, so that the support block and the clamping component can clamp the side of the protrusion away from the product surface, thereby ensuring the force stability of the protrusion during the punching process and making the cut surface of the protrusion smoother.

[0020] Optionally, the clamping assembly includes a clamping block and an elastic element, the clamping block being slidably connected to the slider, and the elastic element being connected to both the clamping block and the slider.

[0021] By adopting the above technical solution, the punching drive source drives the slider to move, the slider drives the clamping block to move, so that the clamping block abuts against the convex hull. The slider continues to move, the elastic element deforms, and the elastic element applies force to the clamping block, so that the clamping block and the support block clamp the convex hull.

[0022] Optionally, both the support block and the abutment block are provided with receiving grooves, which are used to accommodate the protrusions of the product.

[0023] By adopting the above technical solution, the convex hull is located in the receiving groove, and when the clamping block and the support block clamp the convex hull, a uniform force can be applied to the convex hull.

[0024] Optionally, the support base is provided with a trimming assembly, which includes a lifting drive source and a grinding machine. The lifting drive source is connected to the connecting plate. The lifting drive source drives the grinding machine to move, and the grinding machine grinds the area of ​​the product after the protrusion has been removed.

[0025] By adopting the above technical solution, the lifting drive source drives the grinding machine to move, so that the grinding machine is close to the product, thereby grinding the area on the product after the bulge has been removed, effectively removing burrs and improving product quality.

[0026] Optionally, the clamping assembly includes a clamping drive source connected to the support base, the clamping drive source clamping the top side of the product.

[0027] By adopting the above technical solution, the pressure drive source presses the top side of the product, making the product position more stable, reducing the problem of reduced processing accuracy caused by product shaking, and facilitating the cutting of protrusions and grinding operations.

[0028] Optionally, the lifting drive source can move the grinding machine and eject the product.

[0029] By adopting the above technical solution, after grinding the area on the product after the protrusion is removed, the clamping component is released from the product, and the lifting drive source drives the grinding machine to continue to move upward, so that the grinding machine pushes the product out, which is conducive to removing the product.

[0030] Optionally, a material collection box is connected to the bottom side of the connecting plate. The connecting plate, the support plate, and the support base are all provided with a material drop groove. The material drop groove is connected to the material collection box, and the cut protrusion falls into the material collection box through the material drop groove.

[0031] By adopting the above technical solution, the cutting convex bumps and grinding debris fall into the collection box through the chute for collection, reducing the problem of secondary cleaning caused by convex bump residue or scattering.

[0032] Optionally, the punching cutter includes a cutter holder and a cutter head, the cutter holder being detachably connected to the slider, and the cutter head being detachably connected to the cutter holder.

[0033] By adopting the above technical solution, when the cutter head wears out, the cutter holder and cutter head can be disassembled and a new cutter head can be replaced, which facilitates later maintenance.

[0034] In summary, this application includes at least one of the following beneficial effects:

[0035] 1. The product is fixed by the clamping assembly, and then the sliding block is moved by the punching drive source, which in turn drives the punching cutter to accurately remove the protrusions on the surface of the product, which improves the cutting efficiency and reduces the risk of damage caused by manual operation;

[0036] 2. The clamping block and the support block clamp the protrusion to ensure the stability of the protrusion under force during the cutting process, which is conducive to the cutting head cutting the protrusion; the cut protrusion falls into the collection box through the material drop chute for collection and processing.

[0037] 3. The lifting drive source moves the grinding machine close to the bottom side of the product. The grinding machine grinds the area of ​​the product where the protrusions are removed to remove burrs. The lifting drive source then moves the grinding machine upwards, causing the grinding machine to eject the product and unload it. Attached Figure Description

[0038] Figure 1 This is a structural diagram of the product that needs to be processed;

[0039] Figure 2 This is a schematic diagram of the overall structure of the punching fixture in Embodiment 1 of this application;

[0040] Figure 3 This is a schematic diagram of the structure of Embodiment 1 of this application with the Z-axis positioning plate removed;

[0041] Figure 4 This is a schematic diagram of the overall structure of the punching fixture in Embodiment 2 of this application;

[0042] Figure 5 is a cross-sectional structural diagram of Embodiment 2 of this application;

[0043] Figure 6 is an enlarged structural diagram of part A in Figure 5;

[0044] Figure 7 is a structural schematic diagram of removing the Z-axis positioning plate in Embodiment 2 of this application;

[0045] Figure 8 is an enlarged structural diagram of part B in Figure 7.

[0046] Explanation of reference numerals in the attached drawings: 1. Connecting plate; 2. Support base; 3. Support plate; 31. Material discharge chute; 4. Slider; 5. Punching cutter; 51. Tool holder; 52. Cutter head; 6. Punching drive source; 7. Clamping assembly; 71. X-axis positioning plate; 72. Y-axis positioning plate; 73. Z-axis positioning plate; 74. Pressing drive source; 8. Clamping mechanism; 81. Support block; 811. Receiving groove; 82. Pressing assembly; 821. Pressing block; 822. Elastic element; 9. Trimming assembly; 91. Lifting drive source; 92. Grinding machine; 10. Collection box; 100. Product; 101. Protrusion. Detailed Implementation

[0047] The following is in conjunction with the appendix Figure 2-8 This application will be described in further detail.

[0048] Example 1:

[0049] Embodiment 1 of this application provides a punching fixture.

[0050] refer to Figure 2 and Figure 3 The punching fixture includes a connecting plate 1, a support base 2 and a support plate 3. The support base 2 is fixedly connected to the connecting plate 1, and the support plate 3 is fixedly connected to the support base 2. The support base 2 has a groove, and the middle part of the support plate 3 is located in the groove of the support base 2.

[0051] refer to Figure 2 and Figure 3 The support base 2 is equipped with a clamping assembly 7, which includes an X-axis positioning plate 71, a Y-axis positioning plate 72, and a Z-axis positioning plate 73. All three plates are fixedly connected to the support base 2. The sliding direction of the slider 4 is taken as the X-axis direction, the direction perpendicular to the X-axis on the horizontal plane is taken as the Y-axis direction, and the vertical direction is taken as the Z-axis direction. The Z-axis positioning plate 73 has a groove, and the product 100 is placed in the groove with its protrusion 101 facing downwards. The bottom side of the product 100 abuts against the Z-axis positioning plate 73, which limits the Z-axis direction of the product 100. The X-axis positioning plate 71 abuts against the end of the product 100, limiting its X-axis direction. The Y-axis positioning plate 72 abuts against the side of the product 100, limiting its Y-axis direction. The X-axis positioning plate 71, Y-axis positioning plate 72, and Z-axis positioning plate 73 together constitute the three-dimensional spatial positioning structure of product 100, making the position of product 100 more stable and accurate, and also facilitating the clamping and removal of product 100.

[0052] refer to Figure 2 and Figure 3The punching fixture also includes a slider 4, a punching blade 5, and a punching drive source 6. The slider 4 is slidably connected to the support plate 3, and the punching blade 5 is detachably connected to the slider 4, with the punching blade 5 located near the bottom side of the product 100. In this embodiment, the punching drive source 6 is specifically a cylinder, with its body fixedly connected to the connecting plate 1, and its output end fixedly connected to the slider 4. When the punching drive source 6 is activated, it drives the slider 4 to move along the length of the support plate 3, thereby causing the blade 52 to cut the protrusion 101.

[0053] refer to Figure 2 and Figure 3 In this embodiment, since the product 100 has two protrusions 101, there are two corresponding punching blades 5. Both punching blades 5 are connected to the slider 4, so that one punching action of the punching drive source 6 can simultaneously cut the two protrusions 101 on the product 100.

[0054] The implementation principle of a punching fixture in Embodiment 1 of this application is as follows: The product 100 is placed on the Z-axis positioning plate 73, and the product 100 abuts against the X-axis positioning plate 71, Y-axis positioning plate 72, and Z-axis positioning plate 73 respectively, thereby defining the position of the product 100. Then, the punching drive source 6 is activated, which drives the slider 4 to move. The slider 4 drives the punching cutter 5 to move, causing the cutter head 52 to cut off the protrusion 101, thereby making the surface of the product 100 smoother.

[0055] Example 2:

[0056] Embodiment 2 of this application provides a punching fixture. The difference between Embodiment 2 and Embodiment 1 is that:

[0057] refer to Figure 4 In this embodiment, the clamping assembly 7 also includes a clamping drive source 74, which is specifically a rotary cylinder. The body of the clamping drive source 74 is fixedly connected to the support base 2. The output end of the clamping drive source 74 can be raised, lowered and rotated, thereby clamping the top side of the product 100.

[0058] refer to Figure 5 and Figure 6The punching fixture also includes a clamping mechanism 8, which comprises a support block 81 and a clamping assembly 82. The clamping assembly 82 includes a clamping block 821 and an elastic element 822. The support block 81 is fixedly connected to the Z-axis positioning plate 73, and the clamping block 821 is slidably connected to the slider 4. The clamping block 821 and the support block 81 are located on opposite sides of the protrusion 101. The elastic element 822 is specifically a spring, which is fixedly connected to both the clamping block 821 and the slider 4. The clamping block 821 and the support block 81 have a receiving groove 811 on their sides closest to each other. The shape of the receiving groove 811 is adapted to the shape of the protrusion 101, and the protrusion 101 can be accommodated in the receiving groove 811.

[0059] refer to Figure 7 and Figure 8 The punching cutter 5 includes a cutter holder 51 and a cutter head 52. The cutter holder 51 is detachably connected to the slider 4, and the cutter head 52 is detachably connected to the cutter holder 51. When the punching drive source 6 is activated, the punching drive source 6 drives the slider 4 to move, and the slider 4 drives the clamping block 821 to move. The clamping block 821 abuts against the protrusion 101. The slider 4 continues to move, causing the elastic element 822 to compress. The elastic element 822 applies force to the clamping block 821, causing the clamping block 821 and the support block 81 to clamp the protrusion 101 away from the product 100. The cutter head 52 is located above the clamping block 821 and contacts the lower surface of the product 100. While the clamping block 821 and the support block 81 are clamping the protrusion 101, the slider 4 continues to move. At this time, the cutting head 52 contacts the protrusion 101 and gradually cuts it. The clamping of the protrusion 101 by the clamping block 821 and the support block 81 makes the force on the protrusion 101 more even when it is being cut. In this embodiment, the cutting head 52 uses a thinner blade to reduce the force exerted by the cutting head 52 on the protrusion 101 in the vertical direction during the cutting process, which is conducive to smooth cutting. The slider 4 moves until the cutting head 52 contacts the support block 81, at which point the protrusion 101 is completely cut off. Then, the punching drive source 6 drives the slider 4 to move in the opposite direction, moving the cutting head 52 away from the support block 81. Subsequently, the clamping block 821 moves away from the support block 81, and the clamping block 821 and the support block 81 release their clamping of the protrusion 101, which falls under gravity.

[0060] refer to Figure 5 and Figure 6 A material collection box 10 is fixedly connected to the bottom side of the connecting plate 1. The connecting plate 1, the support plate 3 and the support base 2 are provided with a material drop groove 31. The material drop groove 31 is connected to the material collection box 10. The cut protrusion 101 can fall into the material collection box 10 through the material drop groove 31.

[0061] refer to Figure 5 and Figure 6A finishing component 9 is provided on the support base 2. The finishing component 9 includes a lifting drive source 91 and a grinding machine 92. In this embodiment, the lifting drive source 91 is specifically an electric push rod. The body of the lifting drive source 91 is fixedly connected to the connecting plate 1. The grinding machine 92 includes a body and a grinding head. The output end of the lifting drive source 91 is fixedly connected to the body of the grinding machine 92. The lifting drive source 91 can drive the grinding machine 92 to move upward, so that the grinding head contacts and grinds the area of ​​the product 100 after the protrusion 101 has been removed, thereby removing burrs and improving the quality of the product 100.

[0062] refer to Figure 5 and Figure 6 When product 100 is placed on Z-axis positioning plate 73, clamping drive source 74 is activated to press product 100 firmly onto Z-axis positioning plate 73, making product 100 more stable. This facilitates cutting the protrusion 101 and grinding the area of ​​product 100 where the protrusion 101 is removed, reducing the likelihood of product 100 shaking or shifting. After grinding the area of ​​product 100 where the protrusion 101 is removed, clamping drive source 74 is activated again to release the clamping drive source 74 from the top side of product 100. Then, grinding machine 92 is stopped, and lifting drive source 91 is activated, causing lifting drive source 91 to move grinding machine 92 upward, lifting product 100 off Z-axis positioning plate 73, thus completing the unloading operation of product 100.

[0063] The implementation principle of a punching fixture in Embodiment 2 of this application is as follows: First, the product 100 is placed on the Z-axis positioning plate 73, and then the clamping drive source 74 clamps the product 100 onto the Z-axis positioning plate 73. Then, the punching drive source 6 drives the slider 4 to move, and the slider 4 causes the clamping block 821 and the support block 81 to clamp the protrusion 101. The slider 4 then continues to move, causing the cutter head 52 to cut off the protrusion 101. The slider 4 then drives the cutter head 52 and the clamping block 821 away from the support block 81, releasing the clamping block 821 and the support block 81 from the protrusion 101, allowing the protrusion 101 to fall into the collection box 10. Then, the lifting drive source 91 drives the grinding machine 92 to approach the lower surface of the product 100, causing the grinding machine 92 to grind the area of ​​the product 100 where the protrusion 101 has been removed. Finally, the clamping drive source 74 releases the clamping on the top side of the product 100, and the lifting drive source 91 drives the grinding machine 92 to push the product 100 out, thus realizing the unloading of the product 100.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A die cutter characterized by, Include: The connecting plate (1); Support seat (2), the support seat (2) is connected with the connecting plate (1); Support plate (3), the support plate (3) is connected with the support seat (2); Clamping assembly (7), the clamping assembly (7) is connected on the support seat (2), the clamping assembly (7) is used for clamping fixed product (100); Slide block (4), the slide block (4) is connected with the support plate (3) slidingly; Die cutting knife (5), the die cutting knife (5) is connected with the slide block (4); Die cutting drive source (6), the die cutting drive source (6) is connected with the connecting plate (1), the die cutting drive source (6) drives the slide block (4) to move, so that the die cutting knife (5) cuts the convex (101) of product (100) surface.

2. The die-cutting jig according to claim 1, wherein The clamping assembly (7) includes X-axis positioning plate (71), Y-axis positioning plate (72) and Z-axis positioning plate (73), the X-axis positioning plate (71), Y-axis positioning plate (72) and Z-axis positioning plate (73) are connected with the support seat (2), the X-axis positioning plate (71), Y-axis positioning plate (72) and Z-axis positioning plate (73) are abutted with product (100), the X-axis positioning plate (71) is limited to the X-axis direction of product (100), the Y-axis positioning plate (72) is limited to the Y-axis direction of product (100), and the Z-axis positioning plate (73) is limited to the Z-axis direction of product (100).

3. The die-cutting jig of claim 1, wherein It also includes clamping mechanism (8), the clamping mechanism (8) includes support block (81) and abutting assembly (82), the support block (81) is connected with the clamping assembly (7), and the abutting assembly (82) is connected with the slide block (4); the slide block (4) drives the abutting assembly (82) to move, so that the abutting assembly (82) and the support block (81) clamp the convex (101) away from the surface of product (100).

4. The die-cutting jig of claim 3, wherein The abutting assembly (82) includes abutting block (821) and elastic element (822), the abutting block (821) is connected with the slide block (4) slidingly, and the elastic element (822) is connected with the abutting block (821) and the slide block (4) respectively.

5. The die-cutting jig of claim 4, wherein The support block (81) and the abutting block (821) are both provided with accommodating grooves (811), and the accommodating grooves (811) are used for accommodating the convex (101) of product (100).

6. The die-cutting jig of claim 1, wherein, The support seat (2) is provided with finishing assembly (9), the finishing assembly (9) includes jacking drive source (91) and grinder (92), the jacking drive source (91) is connected with the connecting plate (1); the jacking drive source (91) drives the grinder (92) to move, and the grinder (92) is polished to the area of product (100) after cutting convex (101).

7. The die-cutting jig of claim 6, wherein, The clamping assembly (7) includes compression drive source (74), the compression drive source (74) is connected with the support seat (2), and the compression drive source (74) compresses the top side of product (100).

8. The die-cutting jig of claim 6, wherein, The jacking drive source (91) drives the sander (92) to move and can eject the product (100).

9. The die-cutting jig of claim 6, wherein, The connecting plate (1) is connected with a material collecting box (10) on the bottom side, the connecting plate (1), the supporting plate (3) and the supporting seat (2) are all provided with a blanking groove (31), the blanking groove (31) is communicated with the material collecting box (10), and the cut convex (101) falls into the material collecting box (10) through the blanking groove (31).

10. The die-cutting jig of claim 1, wherein, The punching cutter (5) comprises a cutter seat (51) and a cutter head (52), the cutter seat (51) is detachably connected with the sliding block (4), and the cutter head (52) is detachably connected with the cutter seat (51).

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