Pneumatic clamp and machining tool
By adding snap-fit, buffer, and fixing components to the pneumatic clamp, the problems of damage caused by workpiece impact and difficulty in maintaining buffer components are solved, thereby improving the stability and reliability of the clamp, extending its service life, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU XILI TECH CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pneumatic clamps are prone to generating impact force when the workpiece is subjected to external force, resulting in damage to the workpiece surface and wear of the clamp, and the buffer components are difficult to disassemble and maintain.
The fixture is equipped with a snap-fit component, a buffer component, and a fixing component. The snap-fit component uses a slot and a protrusion to facilitate the installation and removal of the buffer component. The buffer component absorbs the impact force through a buffer pad. The fixing component ensures the stability of the buffer component through a fixing rod.
It effectively protects the workpiece surface, improves machining accuracy, extends the service life of fixtures, and reduces maintenance costs and production losses.
Smart Images

Figure CN224526600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic clamping technology, specifically a pneumatic clamping device and a processing machine tool. Background Technology
[0002] A patent document with publication number CN219818932U discloses a pneumatic clamp and a machining tool. The pneumatic clamp includes: a sliding seat, a sliding drive assembly, a clamping power assembly, a lever assembly, and a clamping block. The sliding seat is embedded in a pre-set groove of the machining tool. The sliding drive assembly is fixed on the sliding seat and can slide along the groove with the sliding seat. The clamping power assembly and the lever assembly are located on the end face of the sliding drive assembly that is away from the sliding seat. The lever assembly includes a lever and a lever connector. One end of the lever is connected to the clamping power assembly through the lever connector, and the other end of the lever away from the clamping power assembly is pivotally connected to the clamping block. The sliding drive assembly is used to drive the sliding seat to slide along the groove and drive the clamping power assembly, the lever assembly, and the clamping block to move synchronously, so as to move the clamping block above the workpiece to be clamped. The clamping power assembly is used to transmit clamping pressure to the clamping block through the lever, so as to drive the clamping block, which is pivoted relative to the lever, to clamp the workpiece in the forward direction.
[0003] In practical applications, when a workpiece is subjected to external force, a large impact force is easily generated between the fixture and the workpiece. Over time, this will not only damage the surface of the workpiece and affect the machining accuracy, but may also cause wear on the fixture components and reduce the service life of the fixture. Existing technology lacks detachable buffer components. When it is necessary to maintain or replace the buffer components to ensure the buffering effect, the lack of corresponding detachable buffer pads may make the operation difficult.
[0004] Therefore, this utility model proposes a pneumatic clamp to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a pneumatic clamp and a machining tool to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a pneumatic clamp, comprising a base, a sliding seat, and a clamp, wherein the sliding seat is fixedly disposed on the base, and the clamp is slidably disposed on the sliding seat in a compatible manner; The clamp is provided with a snap-fit component, a buffer component, and a fixing component. The snap-fit component is located at the outer end of the clamp, the buffer component is located on the snap-fit component, and the fixing component is located on the buffer component.
[0007] Preferably, the snap-fit groove in the snap-fit assembly is fixedly disposed in the middle of the inner side of the clamp, and snap-fit edge grooves are provided at both ends of the snap-fit groove.
[0008] Preferably, the snap-fit assembly has a sliding protrusion adapted to slide and snap-fit in the snap-fit groove, and the two ends of the sliding protrusion are provided with side protrusions, which are adapted to slide and snap-fit in the snap-fit side groove.
[0009] Preferably, the buffer pad in the buffer assembly is fixedly mounted on the sliding protrusion, and the buffer pad is tightly fitted inside the clamp.
[0010] Preferably, the top of the buffer pad in the buffer assembly is provided with a first buffer protrusion, and the bottom of the buffer pad is provided with a second buffer protrusion.
[0011] Preferably, the fixing rod in the fixing assembly is fixedly engaged in the fixing port, the fixing port is evenly distributed at the top and bottom of the clamp, and the fixing rod is fixedly disposed on the first buffer protrusion and the second buffer protrusion.
[0012] A machining tool, including the aforementioned pneumatic clamp.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: by adding a snap-fit component, a buffer component, and a fixing component, the problem of difficult maintenance of the buffer component during the use of the fixture is effectively solved. The slot and protrusion of the snap-fit component cooperate to realize the convenient installation and disassembly of the buffer component, which is convenient for daily maintenance. The buffer pad and upper and lower buffer protrusions of the buffer component can fully absorb and disperse the impact force when the workpiece is subjected to external force, avoid damage to the workpiece surface, ensure machining accuracy, and reduce the wear of the fixture components. The fixing rod and fixing port of the fixing component are tightly snapped together to ensure the stability of the buffer component and prevent it from shifting during the buffering process. These components work together to improve the stability and reliability of the fixture, extend the service life of the fixture and the workpiece, and reduce equipment maintenance costs and production losses. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the snap-fit assembly structure of this utility model; Figure 3 This is a schematic diagram of the buffer component structure of this utility model; Figure 4 This is a schematic diagram of the fixing component structure of this utility model.
[0015] In the figure: base 1, sliding seat 2, clamp 3, snap-fit assembly 4, buffer assembly 5, fixing assembly 6, snap-fit groove 401, snap-fit side groove 402, sliding protrusion 403, side protrusion 404, buffer pad 501, first buffer protrusion 502, second buffer protrusion 503, fixing rod 601, fixing port 602. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this utility model, not all embodiments, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. The technical solutions in the embodiments of this utility model will be clearly and completely described below.
[0017] Example 1: Please refer to Figures 1 to 2 A pneumatic clamp and machining tool includes a base 1, a sliding seat 2, and a clamp 3. The sliding seat 2 is fixedly disposed on the base 1, and the clamp 3 is slidably disposed on the sliding seat 2. The clamp 3 is provided with a snap-fit component 4, a buffer component 5, and a fixing component 6. The snap-fit component 4 is disposed on the outer end of the clamp 3, the buffer component 5 is disposed on the snap-fit component 4, and the fixing component 6 is disposed on the buffer component 5.
[0018] The snap-fit groove 401 in the snap-fit assembly 4 is fixedly installed in the middle of the inner side of the clamp 3, and snap-fit edge grooves 402 are provided at both ends of the snap-fit groove 401.
[0019] The snap-fit assembly 4 has a snap-fit groove 401 in which a sliding protrusion 403 is adapted to slide and snap-fit. The two ends of the sliding protrusion 403 are provided with side protrusions 404, which are adapted to slide and snap-fit in the snap-fit side groove 402.
[0020] When using the buffer assembly 5, align the sliding protrusion 403 with the snap-fit groove 401 and the side protrusion 404 with the snap-fit side groove 402, and push it in along the groove direction so that the sliding protrusion 403 slides into the snap-fit groove 401 and the side protrusion 404 slides into the snap-fit side groove 402. This completes the snap-fit fixing of the buffer assembly 5 and the clamp 3. When disassembling, apply reverse force to slide the sliding protrusion 403 and the side protrusion 404 out of the corresponding grooves, which can quickly separate the buffer assembly 5, making it convenient for inspection and replacement and greatly improving maintenance efficiency.
[0021] Example 2: Based on Example 1, please refer to... Figures 2 to 3 The buffer pad 501 in the buffer assembly 5 is fixedly mounted on the sliding protrusion 403, and the buffer pad 501 is tightly attached to the inside of the clamp 3.
[0022] The buffer pad 501 in the buffer assembly 5 is provided with a first buffer protrusion 502 at the top and a second buffer protrusion 503 at the bottom.
[0023] When in use, when the pneumatic fixture clamps the workpiece for processing, and the workpiece is impacted by an external force, the first buffer protrusion 502 at the top and the second buffer protrusion 503 at the bottom of the buffer pad 501 are firmly connected to the fixture 3 by the fixing rod 601, which is relatively stable. The buffer pad 501 contacts and disperses the impact force, and the elastic material of the buffer pad 501 itself further absorbs the impact force. Through deformation, the impact force is converted into internal energy, reducing the direct effect of the impact force on the workpiece and the fixture, thereby effectively protecting the surface of the workpiece, improving the processing accuracy, and reducing the wear of the fixture components.
[0024] Example 3: Based on Example 2, please refer to... Figures 3 to 4 The fixing rod 601 in the fixing component 6 is fixedly engaged in the fixing port 602. The fixing ports 602 are evenly distributed at the top and bottom of the clamp 3. The fixing rod 601 is fixedly disposed on the first buffer protrusion 502 and the second buffer protrusion 503.
[0025] When in use, after the buffer assembly 5 is installed in place, align the fixing rod 601 with the fixing holes 602 at the top and bottom of the clamp 3, and press down to make the fixing rod 601 snap into the fixing hole 602. The tight snap-fit structure can prevent the buffer assembly 5 from shifting or loosening during use. When it is necessary to disassemble the buffer assembly 5, pull out the fixing rod 601 to release the fixing restriction on the buffer assembly 5, ensuring that the buffer assembly 5 works stably and can be easily disassembled.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pneumatic clamp, comprising a base (1), a sliding seat (2), and a clamp (3), wherein the sliding seat (2) is fixedly disposed on the base (1), and the clamp (3) is adapted to slide on the sliding seat (2); Its features are: It includes a snap-fit assembly (4), a buffer assembly (5), and a fixing assembly (6). The snap-fit assembly (4) is disposed on the outer end of the clamp (3), the buffer assembly (5) is disposed on the snap-fit assembly (4), and the fixing assembly (6) is disposed on the buffer assembly (5). The buffer pad (501) in the buffer assembly (5) is fixedly mounted on the sliding protrusion (403), and the buffer pad (501) is tightly mounted inside the clamp (3); The buffer assembly (5) has a first buffer protrusion (502) on the top of the buffer pad (501) and a second buffer protrusion (503) on the bottom of the buffer pad (501).
2. A pneumatic clamp according to claim 1, characterized in that: The snap-fit groove (401) in the snap-fit assembly (4) is fixedly installed in the middle of the inner side of the clamp (3), and snap-fit edge grooves (402) are provided on both sides of the snap-fit groove (401).
3. A pneumatic clamp according to claim 2, characterized in that: The snap-fit assembly (4) has a snap-fit groove (401) in which a sliding protrusion (403) is adapted to slide and snap-fit. Side protrusions (404) are provided at both ends of the sliding protrusion (403), and the side protrusions (404) are adapted to slide and snap-fit in the snap-fit side groove (402).
4. A pneumatic clamp according to claim 1, characterized in that: The fixing rod (601) in the fixing component (6) is fixedly snapped into the fixing port (602). The fixing port (602) is evenly arranged at the top and bottom of the clamp (3). The fixing rod (601) is fixedly arranged on the first buffer protrusion (502) and the second buffer protrusion (503).
5. A processing machine tool, characterized in that: The pneumatic clamp includes any one of claims 1-4.