A cylindrical product punching device

By introducing symmetrical punching cylinder and ejection cylinder structures into the cylindrical product punching device, simultaneous punching on both sides of the cylindrical product is achieved, solving the problems of low efficiency and asymmetrical holes in the existing technology, and improving processing efficiency and quality.

CN224322190UActive Publication Date: 2026-06-05DONGGUAN JINGLIAN PRECISION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINGLIAN PRECISION TECH CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing punching devices for cylindrical products can only process one side, resulting in low efficiency and the holes being asymmetrical when the product is repositioned, affecting the processing quality.

Method used

Two symmetrical punching cylinders and one ejector cylinder were designed to punch holes on both sides of the cylindrical product simultaneously through guide holes and to eject the product quickly using ejector pins, ensuring symmetry and efficiency.

Benefits of technology

It enables rapid and symmetrical punching on both sides of cylindrical products, improving equipment efficiency, ensuring punching quality, and avoiding hole asymmetry.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224322190U_ABST
    Figure CN224322190U_ABST
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Abstract

The utility model discloses a cylindrical product punching device relates to cylindrical product punching equipment technical field, and it is including: installation platform, the upper end of installation platform is provided with product fixed base, the one side of product fixed base is passed through and is provided with product placing groove, the both sides of installation platform all are installed with punch cylinder, two punch cylinders are mutually symmetrical. The utility model discloses the structural design of two punch cylinders and ejector cylinder, staff inserts cylindrical product from one end of product placing groove, and one end of product abuts with one end of thimble, and positioning is carried out to product, and two punch cylinders are opened simultaneously, and two punch needles enter guide hole, and one end of two punch needles punches the both sides of cylindrical product simultaneously, and after punching, opening ejector cylinder, and thimble ejects product, and this structural design can punch the both sides of product quickly, improves the punching efficiency of equipment, and avoids the phenomenon that two punches are asymmetrical, guarantees equipment punching quality.
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Description

Technical Field

[0001] This utility model relates to the technical field of cylindrical product punching equipment, and specifically to a cylindrical product punching device. Background Technology

[0002] Cylindrical punching devices are specialized equipment used to process through holes or blind holes on the surface of workpieces such as shafts, tubes, and sleeves. The core functions of cylindrical punching devices are positioning, clamping, and punching. Hole processing is completed in the radial direction of the cylinder. Cylindrical punching devices typically consist of a punching seat, a cylinder, and a punch. The cylindrical workpiece is inserted into the groove of the punching seat, the cylinder is activated, and the punch performs hole processing on the surface of the cylindrical workpiece.

[0003] The Chinese utility model patent with authorization announcement number "CN208146742U" is specifically "a side punching device for cylindrical products". It includes a base plate, stripping ejector pins, positioning die, lower template, slider, punch, bolt, return spring, upper template, ejector sleeve, telescopic spring, upper mold ejector pin, insert plate fixing block and insert plate. A lower template is fixed on the base plate. A rectangular positioning through hole is opened on the lower template. Four stripping ejector pins are fixed on the base plate in the rectangular positioning through hole. A positioning die is fixed on the base plate between the four stripping ejector pins. A slider is also provided in the rectangular positioning through hole of the lower template on the base plate. A punch is fixed on one end of the slider. At least one bolt is fixed on the other end. A return spring is sleeved on each bolt. An ejector sleeve is fixed on the upper template. A telescopic spring is provided inside the ejector sleeve. An upper mold ejector pin is fixed on the telescopic spring inside the ejector sleeve.

[0004] Most cylindrical product punching devices can only process one side of the cylindrical product. When a cylindrical product needs to be punched on both sides, the operator needs to put the cylindrical product back into the equipment for processing. This results in low punching efficiency. In addition, when the operator puts the product back in, the two holes processed by the equipment may not be symmetrical, leading to unqualified punching. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a punching device for cylindrical products, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cylindrical product punching device, comprising: a mounting platform, a product fixing seat provided at the upper end of the mounting platform, a product placement groove extending through one side of the product fixing seat, punching cylinders mounted on both sides of the mounting platform, the two punching cylinders being symmetrical to each other, a punch being mounted at one end of the telescopic rod of each of the two punching cylinders, guide holes being provided on both sides of the product fixing seat, the outer surfaces of the two punches being slidably connected to the inner walls of the two guide holes respectively, one side of each of the two guide holes being through-connected to both sides of the product placement groove, an ejector cylinder mounted in the middle of one side of the mounting platform, an ejector pin mounted at one end of the ejector cylinder, the outer surface of the ejector pin being slidably connected to one side of the inner wall of the product placement groove.

[0007] As a further preferred embodiment of this technical solution, the upper end of the mounting platform is provided with four mounting holes, which are arranged in a rectangular array.

[0008] As a further preferred embodiment of this technical solution, the upper four corners of the product fixing base are provided with threaded holes, and each of the four threaded holes is threaded with a mounting screw, one end of each of the four mounting screws being threaded onto the mounting platform.

[0009] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0010] This invention utilizes a structure with two punching cylinders and an ejector cylinder. The operator inserts a cylindrical product into one end of the product placement slot, with one end of the product abutting against one end of the ejector pin to position the product. Simultaneously, the two punching cylinders are activated, and two punches enter the guide holes, punching holes on both sides of the cylindrical product at the same time. After punching is complete, the ejector cylinder is activated, and the ejector pins eject the product. This structural design allows for rapid punching of both sides of the product, improving the punching efficiency of the equipment and avoiding asymmetry between the two punches, thus ensuring the punching quality. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 for Figure 1A magnified view of a portion of region A in the middle;

[0014] Figure 3 This is a top view of the structure of this utility model;

[0015] Figure 4 This is a front view structural diagram of the present invention.

[0016] 1. Mounting platform; 2. Punching cylinder; 3. Ejection cylinder; 4. Mounting hole; 5. Product fixing seat; 6. Punch; 7. Ejector pin; 8. Product placement slot; 9. Guide hole; 10. Mounting screw. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The present invention will be further described below with reference to the embodiments.

[0019] This utility model provides a technical solution: such as Figure 1 - Figure 4 As shown, in this embodiment, a cylindrical product punching device includes: a mounting platform 1, a product fixing seat 5 is provided at the upper end of the mounting platform 1, a product placement groove 8 is provided through one side of the product fixing seat 5, punching cylinders 2 are installed on both sides of the mounting platform 1, the two punching cylinders 2 are symmetrical to each other, a punch 6 is installed at one end of the telescopic rod of each of the two punching cylinders 2, guide holes 9 are provided on both sides of the product fixing seat 5, the outer surfaces of the two punches 6 are slidably connected to the inner walls of the two guide holes 9 respectively, one side of each of the two guide holes 9 is through-connected to both sides of the product placement groove 8, an ejector cylinder 3 is installed in the middle of one side of the mounting platform 1, an ejector pin 7 is installed at one end of the ejector cylinder 3, and the outer surface of the ejector pin 7 is slidably connected to one side of the inner wall of the product placement groove 8.

[0020] With the structural design of two punching cylinders 2 and ejection cylinder 3, the operator inserts the cylindrical product into one end of the product placement slot 8, and the product end abuts against one end of the ejector pin 7 to position the product. At the same time, the two punching cylinders 2 are opened, and the two punches 6 enter the guide hole 9. One end of the two punches 6 punches holes on both sides of the cylindrical product simultaneously. After punching is completed, the ejection cylinder 3 is opened, and the ejector pin 7 ejects the product. This structural design can quickly punch holes on both sides of the product, improve the punching efficiency of the equipment, and avoid the phenomenon of asymmetry between the two punches, thus ensuring the punching quality of the equipment.

[0021] like Figure 1 and Figure 3 As shown, the upper end of the mounting platform 1 has four mounting holes 4, which are arranged in a rectangular array. Through the structural design of the mounting holes 4, mounting pins or mounting bolts are inserted into the mounting holes 4 to fix the mounting platform 1 on the workbench, ensuring the stable operation of the entire punching device.

[0022] like Figure 2 and Figure 3 As shown, the upper end of the product fixing seat 5 has threaded holes at all four corners, and each of the four threaded holes is threaded with a mounting screw 10. One end of each of the four mounting screws 10 is threaded onto the mounting platform 1. Through the structural design of the mounting screws 10, the product fixing seat 5 can be replaced, avoiding the serious wear of the product placement slot 8 on the product fixing seat 5 after long-term use, which would result in unqualified products.

[0023] This utility model provides a punching device for cylindrical products, the specific working principle of which is as follows:

[0024] When punching cylindrical products, the operator first inserts the cylindrical product into one end of the product placement groove 8, with one end of the product abutting against one end of the ejector pin 7 to position the product. At the same time, the two punching cylinders 2 are opened, and the two punches 6 enter the guide hole 9. One end of the two punches 6 punches holes on both sides of the cylindrical product simultaneously. After punching is completed, the ejector cylinder 3 is opened, and the ejector pin 7 ejects the product, thus completing the punching process of the cylindrical product.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A punching device for cylindrical products, characterized in that, include: Mounting platform (1), with a product fixing seat (5) at the upper end of the mounting platform (1), a product placement groove (8) is opened through one side of the product fixing seat (5), punching cylinders (2) are installed on both sides of the mounting platform (1), the two punching cylinders (2) are symmetrical to each other, and a punch (6) is installed at one end of the telescopic rod of the two punching cylinders (2), guide holes (9) are opened on both sides of the product fixing seat (5), the outer surfaces of the two punches (6) are slidably connected to the inner walls of the two guide holes (9), and one side of the two guide holes (9) is connected through to both sides of the product placement groove (8). A push-out cylinder (3) is installed in the middle of one side of the mounting platform (1), and a push-out pin (7) is installed at one end of the push-out cylinder (3), and the outer surface of the push-out pin (7) is slidably connected to one side of the inner wall of the product placement groove (8).

2. The cylindrical product punching device according to claim 1, characterized in that: The upper end of the mounting platform (1) is provided with four mounting holes (4), which are arranged in a rectangular array.

3. The cylindrical product punching device according to claim 1, characterized in that: The upper four corners of the product fixing base (5) are provided with threaded holes, and each of the four threaded holes is threaded with a mounting screw (10). One end of each of the four mounting screws (10) is threaded on the mounting platform (1).