Partition row punching tool

Abstract

A row-separated punching tool comprises an upper punching die, a lower punching die and a product. The punching upper die comprises an upper telescopic plate, a guide block, a punching needle, a pressing block, a guide column and a stripping spring. The punching lower die is provided with a bottom positioning groove, a limiting protruding block, an avoiding groove and a chip discharging groove. The bottom positioning groove is a circular groove, and the bottom positioning groove and the punching lower die are located on the same axis. Compared with the prior art, the punching device has the advantages that the punching upper die and the punching lower die are arranged, a product is punched and tapped through die assembly, conventional drilling operation is replaced, the hole quality is good, and the tapping speed is high. And the guide column and the stripping spring are arranged between the pressing block and the guide block, so that rapid blanking is realized. And through the arrangement of the bottom positioning groove and the avoiding groove, the stability of punching operation is guaranteed, and the tapping yield is achieved. And through the arrangement of the chip groove, chips generated by tapping can be rapidly discharged, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm pump processing, in particular to an alternate row punching tool. Background Art

[0002] Diaphragm pump, also known as control pump, is the main type of actuator. It receives the control signal output by the regulating control unit and uses power operation to change the fluid flow. It is a new type of conveying machinery that can transport various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, and highly toxic liquids.

[0003] For example, a high-performance pneumatic diaphragm pump of Chinese utility model CN201921098367.6, a diaphragm is fixedly connected to the pump body, the diaphragm divides the pump body into an air chamber and a pump chamber, the diaphragms on both sides are connected by a connecting rod assembly, a gasket is provided between the diaphragm and the connecting rod assembly, gaskets are provided on both sides of the diaphragm, the edge of the gasket is set at an inclined surface on one side of the diaphragm, the connecting rod assembly can be moved laterally to change the volume of the air chamber and the pump chamber on the same side, the upper part of the pump body on both sides is connected by a discharge pipe, and the lower part of the pump body on both sides is connected by a feed pipe, the connection part of the pump body and the feed and discharge pipes is provided with a sealing cavity for placing a sealing ball, the diameters of both ends of the sealing cavity are slightly smaller than the diameter of the sealing ball, and the two ends of the sealing cavity correspond to the sealing ball.

[0004] The spacer is the arc-shaped shell outside the diaphragm, and holes usually need to be drilled after production so that fasteners such as bolts can be used to connect the diaphragm and other structures when assembling the diaphragm pump. Drilling is conventionally used for drilling holes, but the processing speed is slow and the cost is high. It is not suitable for processing a large number of holes. The edges of the holes formed by drilling often have burrs and need to be manually polished, which is a complicated process. Summary of the Invention

[0005] In view of this, the present invention provides a row-by-row punching tool to solve the above technical problems.

[0006] A spaced-row punching tool comprises a punching upper die, a punching lower die spaced apart from the punching upper die, and a product placed on the punching lower die. The punching upper die comprises an upper telescopic plate, a guide block located in the punching direction of the upper telescopic plate, a plurality of punching needles arranged on the guide block, a pressure block arranged in the punching direction of the guide block, a plurality of guide posts arranged between the guide block and the pressure block, and a plurality of stripping springs sleeved on the guide posts. The guide block is arranged tightly against the upper telescopic plate and connected by fasteners, and abuts against the limit ring. One end of the punching needle is vertically fixed to the guide block, and the extension direction of the free end is the punching direction of the guide block. One end of the guide post is vertically fixed to the pressure block by a fastener, and the other end extends toward the guide block. The stripping spring is sleeved on the guide post and located between the guide block and the pressure block. The punching lower die is provided with a circular bottom positioning groove, an annular limiting protrusion, a plurality of avoidance grooves provided on the limiting protrusion, and a plurality of chip removal grooves provided on the limiting protrusion. The bottom positioning groove is a circular groove and is located on the same axis as the punching lower die. The limiting protrusion is a circle of annular protrusions provided on the edge of the punching lower die, and the protrusion direction is the axial direction of the punching lower die and toward the punching upper die. Each of the avoidance grooves is a semicircular groove provided on the limiting protrusion and is located on the inner side of the limiting protrusion close to the center of the circle. Each of the chip removal grooves is provided at the bottom of the avoidance groove and is communicated with the chip removal groove. The extension direction of the chip removal groove is the radial direction of the punching lower die and is communicated with the outer side wall of the punching lower die.

[0007] Furthermore, the upper telescopic plate is a disc-shaped connecting plate, and is provided with a plurality of guide post accommodating holes and a circle of limiting rings facing the guide block. The guide post accommodating holes are through holes passing through the upper telescopic plate, and the limiting ring is arranged on the circular edge of the telescopic plate and is a circle of annular protrusions facing the guide block.

[0008] Furthermore, the guide block is provided with a clamping step facing the pressure block, and a plurality of guide column through-holes are passed through the guide block. The clamping step is a circular protrusion located on the side of the guide block facing the pressure block and inserted into the pressure block.

[0009] Furthermore, the position and number of the guide post through-holes correspond to those of the guide post accommodating holes, and each guide post through-hole is provided with a guide post abutment groove on one side close to the upper telescopic plate, and a spring abutment groove on the other side close to the pressure block.

[0010] Furthermore, the guide post abutting groove and the spring abutting groove are both circular grooves located on the same axis as the guide post through hole.

[0011] Furthermore, the diameter of the guide post abutting groove is larger than the diameter of the guide post through hole and is consistent with the diameter of the guide post accommodating hole, and the diameter of the spring abutting groove is larger than the diameter of the guide post through hole.

[0012] Furthermore, the guide column includes a column body and a column head located at the free end, the diameter of the column body is smaller than the diameter of the column head, the diameter of the column head is larger than the aperture of the guide column through hole, and smaller than the groove body diameter of the guide column top groove.

[0013] Furthermore, the product is a circular structure and is provided with a circular bottom. The product is punched out with a through hole through the punching upper die, wherein a hole wall is provided at the through hole located on the outer circle of the product.

[0014] Compared with the prior art, the alternate-row punching tool provided by the present invention utilizes the upper punching die and the lower punching die to punch holes in the product by closing the dies, replacing conventional drilling operations. The resulting holes have smooth walls, good hole quality, and a fast punching speed, effectively reducing punching costs. Furthermore, by providing the guide post and the stripping spring between the pressure block and the guide block, the spring's elastic deformation generates a spring force that pushes against the pressure block, forcing the pressure block away from the guide block. This allows the upper punching die to remove the punch needle from the product during its upward movement, achieving rapid blanking. By providing the bottom positioning groove and the avoidance groove, the product is less likely to shift when placed in the lower punching die, ensuring the stability of the punching operation and achieving a high yield rate for punching. Furthermore, by providing the chip removal groove, debris generated by punching is quickly discharged, helping to prevent the accumulation of debris generated by multiple punching operations, reducing the number of times debris needs to be cleaned, and facilitating rapid, streamlined punching of multiple groups of products, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a schematic structural diagram of a row-interval punching tool.

[0016] Figure 2 for Figure 1 A schematic structural diagram of the punching upper die 10 of the alternate row punching tool.

[0017] Figure 3 for Figure 2 A schematic cross-sectional view of the punching upper die 10 of the alternate-row punching tool.

[0018] Figure 4 for Figure 1 A schematic structural diagram of the punching lower die 20 of the alternate row punching tool.

[0019] Figure 5 for Figure 1Schematic diagram of the structure of the product 30 with the alternate row punching tool from the bottom perspective. DETAILED DESCRIPTION

[0020] The following is a further detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0021] like Figures 1 to 5 , which is a schematic diagram of the structure of the alternate-row punching tool provided by the present invention. The alternate-row punching tool comprises an upper punching die 10, a lower punching die 20 spaced apart from the upper punching die 10, and a product 30 placed on the lower punching die 20. It is conceivable that the alternate-row punching tool also includes other functional modules, such as a machine platform for placing the upper punching die 10 and the lower punching die 20, a punching device for pushing the upper punching die 10 downward, etc. These are well known to those skilled in the art and will not be described in detail here.

[0022] The punching upper die 10 includes an upper telescopic plate 11, a guide block 12 located in the punching direction of the upper telescopic plate 11, a plurality of punching needles 13 arranged on the guide block 12, a pressure block 14 arranged in the punching direction of the guide block 12, a plurality of guide columns 15 arranged between the guide block 12 and the pressure block 14, and a plurality of stripping springs 16 sleeved on the guide columns 15.

[0023] The upper telescopic plate 11 is a disc-shaped connecting plate that connects to a molding machine, which drives the guide block 12 and punch 13 to press the product. This molding machine is a state-of-the-art technology widely used in mold production. Because it is well known to those skilled in the art, only a brief description is provided here. The upper telescopic plate 11 is provided with multiple guide post-receiving holes 111 and a retaining ring 112 facing the guide block 12. The guide post-receiving holes 111 are through-holes extending through the upper telescopic plate 11. Their number, diameter, and position correspond to those of the guide posts 15, which will be described in detail below. The retaining ring 112 is provided on the circular edge of the telescopic plate 11 and is an annular protrusion facing the guide block 12. When the upper telescopic plate 11 is in close contact with the guide block 12, the retaining ring 112 radially abuts the guide block 12, preventing it from moving relative to the upper telescopic plate 11.

[0024] The guide block 12 is a circular plate-like structure, positioned against the upper telescopic plate 11 and connected via fasteners, and rests against the retaining ring 112. The guide block 12 is provided with a snap-in step 121 facing the pressure block 14, and a plurality of guide post holes 122 extending through the guide block 12. The snap-in step 121 is a circular protrusion located on the side of the guide block 12 facing the pressure block 14 and inserted into the pressure block 14. The guide post holes 122 correspond in position and number to the guide post receiving holes 111, allowing the guide posts 15 to be inserted and passed through. Each guide post hole 122 is provided with a guide post abutment groove 123 on the side closest to the upper telescopic plate 11, and a spring abutment groove 124 on the other side closest to the pressure block 14. Both the guide post abutment groove 123 and the spring abutment groove 124 are circular grooves coaxially located with the guide post hole 122. The diameter of the guide post abutting groove 123 is larger than the diameter of the guide post through-hole 122 and is consistent with the diameter of the guide post receiving hole 111, so that the end of the guide post 15 abuts against the guide post abutting groove 123, thereby limiting the position. The diameter of the spring abutting groove 124 is larger than the diameter of the guide post through-hole 122, so that the stripping spring 16 can abut against it.

[0025] One end of the punching pin 13 is vertically fixed to the guide block 12, with the free end extending in the direction of the punching of the guide block 12. The punching pin 13 is cylindrical in structure, with the free end chamfered to provide guidance during punching. The number, position, and specifications of the punching pins 13 are determined based on actual product requirements and will not be further described here.

[0026] The pressing block 14 is a hollow annular structure at the center for the insertion of the engaging step 121. A clearance fit with a tolerance of 0 is formed between the central opening of the pressing block 14 and the engaging step 121, so that when the pressing block 14 is pressed downward, the engaging step 121 is fully inserted into the pressing block 14. Furthermore, when the guide post 15 abuts against the guide post abutting groove 123 and the guide block 12 and the pressing block 14 are at their maximum distance, the engaging step 121 remains inserted into the pressing block 14. The pressing block 14 is also provided with a plurality of through holes for the punching needle 13 to pass through.

[0027] One end of the guide post 15 is vertically fixed to the pressure block 14 via a fastener, and the other end extends toward the guide block 12 and passes through the guide post through-hole 122. The guide post 15 includes a column body 151 and a column head 152 located at the free end. The diameter of the column body 151 is smaller than the diameter of the column head 152. The diameter of the column head 152 is larger than the aperture of the guide post through-hole 122 and smaller than the diameter of the guide post abutment groove 123, so that the column head 152 will abut within the guide post abutment groove 123.

[0028] The stripping spring 16 is sleeved on the guide post 15 and is located between the guide block 12 and the pressing block 14 to push the pressing block 14 away from the guide block 12 through the elastic force generated during elastic deformation.

[0029] The punching lower die 20 is a disc-shaped lower die frame, which is provided with a circular bottom positioning groove 21, an annular limiting protrusion 22, a plurality of avoidance grooves 23 opened on the limiting protrusion 22, and a plurality of chip removal grooves 24 opened on the limiting protrusion 22.

[0030] The bottom positioning groove 21 is a circular groove and is located on the same axis as the punching lower die 20 for the bottom of the product 30 to be placed in. The notch of the bottom positioning groove 21 is provided with a circle of chamfers to play a guiding role when the product 30 is placed in.

[0031] The limiting protrusion 22 is a circle of annular protrusions arranged on the edge of the punching lower die 20. The protrusion direction is the axial direction of the punching lower die 20 and toward the punching upper die 10. It is used to limit and push against the product 30 placed on the punching lower die 20 to prevent the product 30 from shifting during the stamping process.

[0032] Each of the avoidance grooves 23 is a semicircular groove provided on the limiting protrusion 22 and is located on the inner side of the limiting protrusion 22 close to the center of the circle, so that the corresponding parts of the product 30 can be placed therein.

[0033] Each of the chip removal grooves 24 is provided at the bottom of the avoidance groove 23 and communicates with the chip removal groove 24. The chip removal grooves 24 extend in the radial direction of the punching lower die 20 and communicate with the outer side wall of the punching lower die 20, so that when a product is placed on the punching lower die 20 and punched and opened by the punching upper die 10, the generated chips are discharged along the chip removal grooves 24.

[0034] The product 30 is a diaphragm pump structure made of an alloy material, as described in the cast iron diaphragm row of a diaphragm pump disclosed in Chinese utility model CN202221450004.6. Therefore, only a brief description of its structure is provided here, without a detailed description of its functions. The product 30 is a circular structure with a circular bottom 31. The product 30 is punched through the punching die 10 to form a through hole. The through hole on the outer ring of the product 30 is provided with a hole wall 32, which serves as a reinforcement structure at the opening.

[0035] During operation, the product 30 is placed on the punching lower die 20 through a loading mechanism, the bottom 31 is stuck in the bottom positioning groove 21, and each of the hole walls 32 is stuck in the avoidance groove 23. The upper telescopic plate 11 and the guide block 12 are driven close to the product 30 by the punching equipment, and the punch needle 13 is inserted into the product 30 to complete the punching hole. The upper telescopic plate 11 and the guide block 12 drive the punch needle 13 to lift, and the pressure block 14 is pressed against the product under the elastic action of the stripping spring 16, so that the punch needle 13 is pulled out from the product to complete the stripping. When the pressure block 14 and the guide block 12 reach the maximum distance, that is, when the column head 152 is pressed against the guide column pressing groove 123, the pressure block 14 is lifted together with the guide block 12, and then the product 30 with the hole completed is unloaded by the unloading mechanism.

[0036] Compared with the prior art, the alternate-row punching tool provided by the present invention is provided with the punching upper die 10 and the punching lower die 20, and the product 30 is punched and opened by closing the dies, replacing the conventional drilling operation. The hole walls of the opened holes are smooth, the hole quality is good, the hole opening speed is fast, and the hole opening cost can be effectively reduced. The guide column 15 and the stripping spring 16 are provided between the pressure block 14 and the guide block 12, and the elastic force generated by the elastic deformation of the spring is used to push against the pressure block 14, so that the pressure block 14 is away from the guide block 12, so that the punching upper die 10 can pull the punch needle 13 out of the product during the upward process, thereby achieving rapid unloading. By providing the bottom positioning groove 21 and the avoidance groove 23, the product 30 is not easily displaced when placed in the punching lower die 20, thereby ensuring the stability of the punching operation and achieving a good rate of opening. By providing the chip removal groove 24, the debris generated by the hole opening can be quickly discharged, which helps to prevent the accumulation of debris generated by multiple hole openings, reduces the number of times the debris is cleaned, and facilitates the rapid and streamlined hole opening of multiple groups of the products 30, thereby improving production efficiency.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A tool for punching and cutting alternate rows, characterized in that: The alternate row punching tool includes a punching upper die, a punching lower die spaced apart from the punching upper die, and a product placed on the punching lower die, the punching upper die includes an upper telescopic plate, a guide block located in the punching direction of the upper telescopic plate, a plurality of punching needles arranged on the guide block, a pressure block arranged in the stamping direction of the guide block, a plurality of guide posts arranged between the guide block and the pressure block, and a plurality of stripping springs sleeved on the guide posts, the guide block is arranged tightly against the upper telescopic plate and connected by fasteners, and abuts against the limit ring, one end of the punching needle is vertically fixed on the guide block, and the extending direction of the free end is the stamping direction of the guide block, one end of the guide post is vertically fixed to the pressure block by a fastener, and the other end extends toward the guide block, and the stripping spring is sleeved on the guide post. The guide column is located between the guide block and the pressure block. The punching lower die is provided with a circular bottom positioning groove, an annular limiting protrusion, a plurality of avoidance grooves on the limiting protrusion, and a plurality of chip removal grooves on the limiting protrusion. The bottom positioning groove is a circular groove and is located on the same axis as the punching lower die. The limiting protrusion is a circle of annular protrusions arranged on the edge of the punching lower die, and the protrusion direction is the axial direction of the punching lower die and toward the punching upper die. Each of the avoidance grooves is a semicircular groove arranged on the limiting protrusion and is located on the inner side of the limiting protrusion close to the center of the circle. Each of the chip removal grooves is arranged at the bottom of the avoidance groove and is communicated with the chip removal groove. The extension direction of the chip removal groove is the radial direction of the punching lower die and is communicated with the outer wall of the punching lower die.

2. The alternate-row punching tool according to claim 1, characterized in that: The upper telescopic plate is a disc-shaped connecting plate, and is provided with a plurality of guide post accommodating holes and a circle of limiting rings facing the guide block. The guide post accommodating holes are through holes passing through the upper telescopic plate, and the limiting ring is provided on the circular edge of the telescopic plate and is a circle of annular protrusions facing the guide block.

3. The alternate-row punching tool according to claim 2, characterized in that: The guide block is provided with a clamping step facing the pressing block, and a plurality of guide post through-holes are passed through the guide block. The clamping step is a circular protrusion located on the side of the guide block facing the pressing block and inserted into the pressing block.

4. The alternate-row punching tool according to claim 3, characterized in that: The position and number of the guide post through-holes correspond to the guide post accommodating holes. A guide post abutment groove is provided on one side of each guide post through-hole close to the upper telescopic plate, and a spring abutment groove is provided on the other side close to the pressure block.

5. The alternate-row punching tool according to claim 4, characterized in that: The guide post abutting groove and the spring abutting groove are both circular grooves located on the same axis as the guide post through hole.

6. The alternate-row punching tool according to claim 4, characterized in that: The diameter of the guide post abutting groove is larger than the diameter of the guide post through hole and is consistent with the diameter of the guide post accommodating hole. The diameter of the spring abutting groove is larger than the diameter of the guide post through hole.

7. The alternate-row punching tool according to claim 4, characterized in that: The guide column includes a column body and a column head located at the free end. The diameter of the column body is smaller than the diameter of the column head. The diameter of the column head is larger than the aperture of the guide column through hole and smaller than the diameter of the groove body of the guide column top groove.

8. The alternate-row punching tool according to claim 1, characterized in that: The product is a circular structure and is provided with a circular bottom. The product is punched out with a through hole through the punching upper die, wherein a hole wall is provided at the through hole located on the outer circle of the product.

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