Hand-held pneumatic positioning punch
By using a handheld pneumatic positioning punch, the alloy punch is driven to impact through a pneumatic pressurization chamber and exhaust valve system, which solves the problems of high labor intensity and low efficiency caused by manual hammering of traditional positioning punches, and realizes efficient automated processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGKING FUJIAN EXCAVATOR CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-28
AI Technical Summary
Traditional positioning punches require manual striking during use, increasing the labor intensity of workers and affecting processing efficiency.
A handheld pneumatic positioning punch is used. Through the pneumatic pressurization chamber and exhaust valve system, compressed air is used to drive the impact block to impact the alloy punch, simulating hammering and reducing manual operation.
It reduced the labor intensity of workers and improved the processing efficiency of positioning punches.
Smart Images

Figure CN224561419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of positioning punch technology, and in particular to a handheld pneumatic positioning punch. Background Technology
[0002] The main function of a positioning punch is to punch a small pit or mark on the surface of the material to facilitate subsequent processing operations, such as finding the centering position more accurately when drilling, and preventing the drill bit from slipping when drilling on the end face.
[0003] Traditional positioning punches are used by holding the punch in one hand and striking the tail of the punch with a hammer to create a concave deformation on the material surface, which facilitates subsequent processing. However, the problem is that manually striking the material with a hammer increases the labor intensity of the workers and affects the processing efficiency of the positioning punch. To address this, we propose a handheld pneumatic positioning punch. Utility Model Content
[0004] The main purpose of this invention is to provide a handheld pneumatic positioning punch that can effectively solve the technical problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a handheld pneumatic positioning punch, including a handheld handle, a pneumatic pressurizing chamber at the upper end of the handheld handle, the pneumatic pressurizing chamber being fixedly connected to the handheld handle, a sliding groove inside the handheld handle, a one-way air inlet valve at the upper end of the pneumatic pressurizing chamber, an exhaust valve at the lower end of the pneumatic pressurizing chamber, an impact block inside the sliding groove, the impact block being a metal block, the impact block being adapted to the sliding groove, the impact block being slidably installed inside the sliding groove, a force-bearing block at the lower end of the impact block, the force-bearing block being adapted to the sliding groove, the force-bearing block being slidably installed inside the sliding groove, an alloy punch at the lower end of the force-bearing block, the alloy punch being fixedly connected to the force-bearing block, the lower end of the alloy punch extending to the outside of the handheld handle, the alloy punch being movably connected to the handheld handle, and an inflation button at one end of the handheld handle, the inflation button being able to control the opening and closing of the one-way air inlet valve and the exhaust valve.
[0006] Preferably, a telescopic spring is provided on the outside of the alloy punch, and the telescopic spring is sleeved on the outside of the alloy punch. The two ends of the telescopic spring are respectively connected to the force-bearing block and the hand grip.
[0007] Preferably, the groove is provided with an installation groove at a position relative to the impact block. The installation groove has an annular groove and a magnetic ring inside.
[0008] Preferably, the magnetic ring is an annular magnetic ring, with one end of the magnetic ring fixedly connected to the mounting groove, and the magnetic ring attracts the impact block through magnetic force.
[0009] Preferably, the outer side of the hand grip is provided with an anti-slip block, which is sleeved on the outer side of the hand grip and fixedly connected to the hand grip.
[0010] Preferably, the outer side of the anti-slip block is provided with a grip groove, which can improve hand grip comfort and grip stability.
[0011] Beneficial effects
[0012] This utility model provides a handheld pneumatic positioning punch, which has the following advantages:
[0013] (1) This handheld pneumatic positioning punch uses compressed air pre-stored inside the pneumatic pressurization chamber. The impact block is moved by the exhaust valve to impact the alloy punch, which can simulate the hammer hitting the alloy punch to complete the impact. It does not require manual hammering, which not only reduces the labor intensity of the workers, but also improves the processing efficiency of the positioning punch. Attached Figure Description
[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a partial cross-sectional schematic diagram of the present invention;
[0017] Figure 3 This utility model Figure 2 Enlarged diagram of point A in the middle.
[0018] Legend:
[0019] 1. Hand grip; 2. Pneumatic pressurization chamber; 3. Slide groove; 4. One-way air intake valve; 5. Exhaust valve; 6. Impact block; 7. Alloy punch; 8. Telescopic spring; 9. Magnetic ring; 10. Inflation button; 11. Anti-slip block; 12. Hand grip groove; 13. Mounting groove; 14. Force-bearing block. Detailed Implementation
[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0021] Example 1: A handheld pneumatic positioning punch, such as Figures 1-3As shown, the device includes a handgrip 1, which is a cylindrical hollow shell. A pneumatic pressurization chamber 2, also a spherical hollow shell, is located at the upper end of the handgrip 1. The lower end of the pneumatic pressurization chamber 2 is fixedly connected to the handgrip 1. A slide groove 3 is located inside the handgrip 1. A one-way air inlet valve 4 is located at the upper end of the pneumatic pressurization chamber 2, and is fixedly connected to the pneumatic pressurization chamber 2 by bolts. The one-way air inlet valve 4 communicates with the internal cavity of the pneumatic pressurization chamber 2. An exhaust valve 5 is located at the lower end of the pneumatic pressurization chamber 2, and is fixedly connected to the pneumatic pressurization chamber 2 by bolts. The input end of the exhaust valve 5 communicates with the interior of the pneumatic pressurization chamber 2, and the output end of the exhaust valve 5 communicates with the slide groove 3. An impact block 6, a cylindrical metal block, is located inside the slide groove 3. The impact block 6 is slidably installed inside the slide 3, and its shape is adapted to the inner wall of the slide 3. A force-bearing block 14 is provided at the lower end of the impact block 6. The force-bearing block 14 is a circular metal block. The shape of the force-bearing block 14 is adapted to the inner wall of the slide 3. The force-bearing block 14 is slidably installed inside the slide 3. An alloy punch 7 is provided at the lower end of the force-bearing block 14. The alloy punch 7 is a cylindrical rod. The upper end of the alloy punch 7 is perpendicular to the force-bearing block 14. The upper end of the alloy punch 7 is fixedly welded to the force-bearing block 14. The lower end of the alloy punch 7 extends to the lower end of the hand grip 1. The alloy punch 7 is movably connected to the hand grip 1. An inflation button 10 is provided at one end of the outer side of the hand grip 1. One end of the inflation button 10 is fixedly connected to the hand grip 1. The inflation button 10 is connected to the one-way air inlet valve 4 and the air outlet valve 5 through a wire.
[0022] Furthermore, a telescopic spring 8 is provided on the outer side of the alloy punch 7. The telescopic spring 8 is sleeved on the outer side of the alloy punch 7. One end of the telescopic spring 8 is fixedly connected to the force-bearing block 14, and the other end of the telescopic spring 8 is fixedly connected to the inner wall of the hand grip 1. An installation groove 13 is provided on the inner wall of the slide groove 3 relative to the impact block 6. The installation groove 13 is an annular groove. A magnetic ring 9 is provided inside the installation groove 13. The magnetic ring 9 is an annular magnetic ring. One end of the magnetic ring 9 is fixedly bonded to the inner wall of the installation groove 13. The magnetic ring 9 can attract the impact block 6 through magnetic force. An anti-slip block 11 is provided on the outer side of the hand grip 1. The anti-slip block 11 is a soft silicone ring. The anti-slip block 11 is sleeved on the outer side of the hand grip 1. The inner side of the anti-slip block 11 is fixedly bonded to the hand grip 1. A grip groove 12 is provided on the outer side of the anti-slip block 11. The grip groove 12 can improve the hand grip comfort and improve the grip stability.
[0023] It should be noted that this utility model is a handheld pneumatic positioning punch. In use, first hold the outside of the handheld handle 1, then shake the handheld handle 1 to move the impact block 6 inside the slide groove 3 into contact with the magnetic ring 9. The magnetic ring 9 uses magnetic force to attract and position the impact block 6 inside the slide groove 3, leaving a pre-existing moving distance between the impact block 6 and the force-bearing block 14. Then connect the compressed air pipe to the one-way air inlet valve 4, and then open the one-way air inlet valve 4 using the inflation button 10 to pressurize the pneumatic pressurization chamber 2. After pressurizing to the predetermined position, close the one-way air inlet valve 4. Then, hold the handheld handle 1 to move the entire device, lowering the alloy punch 7. Align the end with the position to be impacted, and then open the exhaust valve 5 through the inflation button 10. The exhaust valve 5 delivers air from the pneumatic pressurization chamber 2 into the slide groove 3. During the air flow, the impact block 6 moves downward along the slide groove 3. As the impact block 6 moves downward, it pushes the alloy punch 7 downward through the force block 14 to impact the workpiece. The anti-slip block 11 on the outside of the hand grip 1 can improve the grip stability and prevent the hand grip 1 from falling off during the impact. The telescopic spring 8 on the outside of the alloy punch 7 can push the alloy punch 7 upward to reset after the impact, which is convenient for subsequent use. By pre-storing compressed air in the pneumatic pressurization chamber 2 and using the exhaust valve 5 to blow the impact block 6 to impact the alloy punch 7, the impact can be simulated by a hammer striking the alloy punch 7. This eliminates the need for manual striking, reducing the labor intensity of workers and improving the efficiency of positioning punching.
[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A handheld pneumatic positioning punch, comprising a handheld handle (1), wherein the upper end of the handheld handle (1) is provided with a pneumatic pressurizing chamber (2), the pneumatic pressurizing chamber (2) is fixedly connected to the handheld handle (1), the handheld handle (1) is provided with a sliding groove (3), the upper end of the pneumatic pressurizing chamber (2) is provided with a one-way air inlet valve (4), and the lower end of the pneumatic pressurizing chamber (2) is provided with an exhaust valve (5), characterized in that: The slide groove (3) is provided with an impact block (6), which is a metal block. The impact block (6) is adapted to the slide groove (3) and is slidably installed inside the slide groove (3). The lower end of the impact block (6) is provided with a force block (14), which is adapted to the slide groove (3) and is slidably installed inside the slide groove (3). The lower end of the force block (14) is provided with an alloy punch (7), which is fixedly connected to the force block (14). The lower end of the alloy punch (7) extends to the outside of the hand grip (1) and is movably connected to the hand grip (1). One end of the hand grip (1) is provided with an inflation button (10), which can control the opening and closing of the one-way air inlet valve (4) and the exhaust valve (5).
2. The handheld pneumatic positioning punch according to claim 1, characterized in that: The alloy punch (7) is provided with a telescopic spring (8) on the outside. The telescopic spring (8) is sleeved on the outside of the alloy punch (7). The two ends of the telescopic spring (8) are respectively connected to the force block (14) and the hand grip (1).
3. A handheld pneumatic positioning punch according to claim 1, characterized in that: The sliding groove (3) is provided with an installation groove (13) at a position relative to the impact block (6). The installation groove (13) is an annular groove and a magnetic ring (9) is provided inside the installation groove (13).
4. A handheld pneumatic positioning punch according to claim 3, characterized in that: The magnetic ring (9) is an annular magnetic ring. One end of the magnetic ring (9) is fixedly connected to the mounting groove (13). The magnetic ring (9) attracts the impact block (6) through magnetic force.
5. A handheld pneumatic positioning punch according to claim 1, characterized in that: The hand grip (1) is provided with an anti-slip block (11) on the outside. The anti-slip block (11) is sleeved on the outside of the hand grip (1) and the anti-slip block (11) is fixedly connected to the hand grip (1).
6. A handheld pneumatic positioning punch according to claim 5, characterized in that: The anti-slip block (11) has a grip groove (12) on its outer side, which can improve hand grip comfort and grip stability.