Pneumatic zero-point clamp

Abstract

The utility model relates to the technical field of vises, in particular to a pneumatic zero-point clamp which comprises an air cylinder base, the end face of the air cylinder base is connected with a connecting base through a bolt, and air pipe connectors are arranged on the side walls of the air cylinder base. A movable piston is connected in the inner cavity of the air cylinder base and the inner cavity of the connecting base and located above the air pipe connector, and a plurality of sets of reset springs are arranged on the end face of the movable piston and the top of the connecting base. According to the pneumatic zero-point clamp, the air cylinder base, the connecting base, the air pipe connector, the movable piston, the reset spring, the bolt pull rod, the guide sliding block, the movable sliding rod, the jacking spring, the blind rivet placing hole, the sealing piston, the compression spring, the movable top plate, the fixed blind rivet and the clamping vice are arranged in the pneumatic zero-point clamp; the clamping jaw vice can be rapidly and accurately installed, and therefore the problem that the jaw vice is not convenient, rapid and repeatedly installed in the using process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vises, in particular to a pneumatic zero-point clamp. Background Art

[0002] When the current vise needs to be repeatedly installed during product processing, it is mostly necessary to manually calibrate it, which makes the vise inconvenient to install and also affects the efficiency of product processing. To address the above problems, a pneumatic zero-point clamp is needed. Utility Model Content

[0003] The purpose of the present utility model is to provide a pneumatic zero-point clamp to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A pneumatic zero-point fixture comprises a cylinder base, the end surface of the cylinder base is connected to a connecting base by bolts, the side walls of the cylinder base are provided with air pipe joints, a movable piston is connected in the inner cavity of the cylinder base and the connecting base and above the air pipe joint, the end surface of the movable piston and the top of the connecting base are provided with multiple sets of return springs, a bolt pull rod is connected at the center of the end surface of the movable piston, a guide slider is connected to the side wall of the bolt pull rod, and multiple sets of movable The sliding rod has a lifting spring arranged in the inner cavity of the connecting base and on the side wall of the movable sliding rod, a rivet placement hole is opened on the connecting base and at one end of the movable sliding rod, a sealing piston is connected to the inner cavity of the rivet placement hole, a compression spring is connected to the end surface of the sealing piston, a movable top plate is connected in the inner cavity of the rivet placement hole and on the end surface of the compression spring, a fixed rivet is connected in the inner cavity of the rivet placement hole and on the end surface of the movable top plate, and a clamping vise is connected on the end surface of the connecting base and on the fixed rivet.

[0006] As a preferred solution of the present invention, a through vent hole is provided on the cylinder base and corresponds to the trachea joint, a pneumatic switch is connected to the trachea joint through a conduit, and a sealing ring is provided on the contact surface of the cylinder base and the connecting base.

[0007] As a preferred solution of the present invention, connecting holes are provided in the inner cavities of the cylinder base and the connecting base and correspond to the movable piston, wherein the movable piston and the connecting hole are connected by a sliding connection, and sealing strips are provided on the movable piston and correspond to the inner walls of the cylinder base and the connecting base.

[0008] As a preferred solution of the present invention, the connection between the bolt pull rod and the movable piston is a threaded connection, and a connecting hole is provided at the center of the guide slider and corresponding to the bolt pull rod, wherein the bolt pull rod and the connecting hole are matched by a clearance fit, and a fixed retaining spring is connected on the inner wall of the guide slider and on the end face of the bolt pull rod.

[0009] As a preferred solution of the present invention, the guide slider is an inverted cone-shaped structure, and a guide surface is correspondingly provided on the side wall where the movable slide rod contacts the guide slider. A limiting hole is provided in the inner cavity of the connecting base and corresponding to the movable slide rod, wherein the connection method between the movable slide rod and the limiting hole is a sliding connection.

[0010] As a preferred solution of the present invention, four groups of movable slide rods are provided, wherein one end of the four groups of movable slide rods is located at the four corners of the connecting base, the outer wall of the movable slide rod and the lifting spring are matched in a clearance fit, the outer wall of the movable slide rod and the lifting spring are provided with a fixed clamping platform corresponding to the lifting spring, a sealing ring is provided on the outer wall of the sealing piston and the inner wall of the rivet placement hole, and the rivet placement hole and the fixed rivet are matched in a clearance fit.

[0011] As a preferred solution of the present invention, an annular groove is provided on the outer wall of the fixed rivet and corresponds to the movable slide rod, wherein the movable slide rod and the annular groove are matched by clearance fit, and the fixed rivet and the clamping vise are connected by threaded connection.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] In the utility model, by arranging a cylinder base, a connecting base, an air pipe joint, a movable piston, a reset spring, a bolt pull rod, a guide slider, a movable slide rod, a lifting spring, a rivet placement hole, a sealing piston, a compression spring, a movable top plate, a fixed rivet, a clamping vise and the interaction between the various components in the pneumatic zero point clamp, when the pneumatic zero point clamp is used, the clamping vise can be installed quickly and accurately, and the device can be positioned quickly and repeatedly during processing, so that the quality of the product during processing is better, thereby solving the problem that the vise is inconvenient to install quickly and repeatedly when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the positive and equal side structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the explosion structure;

[0016] Figure 3 For this utility model Figure 1 Schematic diagram of the cross-sectional structure;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the internal structure.

[0018] In the figure: 1. Cylinder base; 2. Connecting base; 3. Air pipe joint; 4. Moving piston; 5. Return spring; 6. Bolt pull rod; 7. Guide slider; 8. Moving slide bar; 9. Lifting spring; 10. Pull rivet placement hole; 11. Sealing piston; 12. Compression spring; 13. Moving top plate; 14. Fixing pull rivet; 15. Clamping vise. DETAILED DESCRIPTION

[0019] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] For example, please refer to Figure 1-4 , the utility model provides a technical solution:

[0024] A pneumatic zero-point fixture comprises a cylinder base 1, the end surface of the cylinder base 1 is connected to a connecting base 2 by bolts, the side walls of the cylinder base 1 are provided with air pipe joints 3, a movable piston 4 is connected in the inner cavity of the cylinder base 1 and the connecting base 2 and located above the air pipe joint 3, the end surface of the movable piston 4 and the top of the connecting base 2 are provided with multiple groups of return springs 5, a bolt pull rod 6 is connected to the center of the end surface of the movable piston 4, a guide slider 7 is connected to the side wall of the bolt pull rod 6, and multiple groups of movable slide rods 8 are connected on the side wall of the guide slider 7 and located in the inner cavity of the connecting base 2. 2 and is provided with a lifting spring 9 on the side wall of the movable slide rod 8, a rivet placement hole 10 is opened on the connecting base 2 and at one end of the movable slide rod 8, a sealing piston 11 is connected to the inner cavity of the rivet placement hole 10, a compression spring 12 is connected to the end surface of the sealing piston 11, a movable top plate 13 is connected to the inner cavity of the rivet placement hole 10 and on the end surface of the compression spring 12, a fixed rivet 14 is connected to the inner cavity of the rivet placement hole 10 and on the end surface of the movable top plate 13, and a clamping vise 15 is connected to the end surface of the connecting base 2 and on the fixed rivet 14;

[0025] In this embodiment, reference Figure 1 、 Figure 2 and Figure 4, under the condition that the connection mode of the fixed rivet 14 and the clamping vise 15 is a threaded connection, the fixed rivet 14 is installed at the bottom of the clamping vise 15, and a through vent hole is opened on the cylinder base 1 and corresponding to the air pipe joint 3, and a pneumatic switch is connected to the air pipe joint 3 through a conduit, and a sealing ring is provided on the contact surface of the cylinder base 1 and the connecting base 2, and a connecting hole is opened in the inner cavity of the cylinder base 1 and the connecting base 2 and corresponding to the movable piston 4, wherein the connection mode of the movable piston 4 and the connecting hole is a sliding connection, and a sealing strip is provided on the movable piston 4 and corresponding to the inner wall of the cylinder base 1 and the connecting base 2. When the pneumatic switch is activated, the movable piston 4 moves downward, and the connection mode of the connecting bolt rod 6 and the movable piston 4 is a threaded connection, and a connecting hole is opened at the center of the guide slider 7 and corresponding to the bolt rod 6, wherein the bolt rod 6 and the connecting hole are matched in a clearance fit, and the inner wall of the guide slider 7 and the end face of the bolt rod 6 are connected with a fixed retaining ring, which drives the bolt rod 6 and the guide slider 7 downward. The guide slider 7 is an inverted cone-shaped structure, and a guide surface is correspondingly provided on the side wall where the movable slide rod 8 contacts the guide slider 7. A limited hole is opened in the inner cavity of the connecting base 2 and corresponds to the movable slide rod 8. The connection mode of the movable slide rod 8 and the limited hole is a sliding connection. The movable slide rod 8 is provided with four groups, one end of which is located at the four corners of the connecting base 2. The outer wall of the movable slide rod 8 and the lifting spring 9 are matched in a clearance fit. The outer wall of the movable slide rod 8 and the lifting spring 9 are provided with a corresponding Under the condition of fixing the card table, one end of the movable slide rod 8 is driven to move toward the four corners of the connection base 2, and the spring 9 is lifted and compressed. A sealing ring is provided on the outer wall of the sealing piston 11 and corresponds to the inner wall of the rivet placement hole 10. The rivet placement hole 10 and the fixed rivet 14 are matched in a clearance fit. An annular groove is provided on the outer wall of the fixed rivet 14 and corresponds to the movable slide rod 8. Under the condition that the matching mode between the movable slide rod 8 and the annular groove is a clearance fit, the fixed rivet 14 is fixed by the movable slide rod 8.

[0026] Furthermore, a through vent hole is provided on the cylinder base 1 and corresponds to the trachea joint 3, a pneumatic switch is connected to the trachea joint 3 through a conduit, a sealing ring is provided on the contact surface of the cylinder base 1 and the connecting base 2, and a connecting hole is provided in the inner cavity of the cylinder base 1 and the connecting base 2 and corresponds to the movable piston 4, wherein the movable piston 4 is connected to the connecting hole in a sliding manner, and a sealing strip is provided on the movable piston 4 and corresponds to the inner wall of the cylinder base 1 and the connecting base 2, the bolt pull rod 6 and the movable piston 4 are connected in a threaded manner, and a connecting hole is provided at the center of the guide slider 7 and corresponds to the bolt pull rod 6, wherein the bolt pull rod 6 and the connecting hole are fitted in a clearance manner, and a fixed retaining spring is connected on the inner wall of the guide slider 7 and on the end face of the bolt pull rod 6, so that the movable piston 4 can operate smoothly when in use;

[0027] Furthermore, the guide slider 7 is an inverted conical structure, and a guide surface is correspondingly provided on the side wall where the moving slide rod 8 contacts the guide slider 7. A limiting hole is provided in the inner cavity of the connecting base 2 and corresponding to the moving slide rod 8, wherein the connection mode of the moving slide rod 8 and the limiting hole is a sliding connection, and the moving slide rod 8 is provided with four groups, wherein one end of the four groups of moving slide rods 8 is located at the four corners of the connecting base 2, and the outer wall of the moving slide rod 8 and the jacking spring 9 are matched in a clearance fit, and the outer wall of the moving slide rod 8 and the jacking spring 9 are provided with a fixed card table corresponding to the jacking spring 9, so that the moving slide rod 8 can move smoothly to the four sides;

[0028] Furthermore, a sealing ring is provided on the outer wall of the sealing piston 11 and corresponding to the inner wall of the rivet placement hole 10. The rivet placement hole 10 and the fixed rivet 14 are clearance-fitted. An annular groove is provided on the outer wall of the fixed rivet 14 and corresponding to the movable slide rod 8. The movable slide rod 8 and the annular groove are clearance-fitted. The fixed rivet 14 and the clamping vise 15 are connected by a threaded connection, so that the device can operate smoothly when in use.

[0029] The working process of the utility model is as follows: when using the pneumatic zero point clamp, the fixed rivet 14 is installed on the bottom of the clamping vise 15 under the condition that the connection mode of the fixed rivet 14 and the clamping vise 15 is a threaded connection, a through vent hole is opened on the cylinder base 1 and corresponds to the trachea joint 3, a pneumatic switch is connected to the trachea joint 3 through a conduit, a sealing ring is provided on the contact surface of the cylinder base 1 and the connecting base 2, and a connecting hole is opened in the inner cavity of the cylinder base 1 and the connecting base 2 and corresponds to the moving piston 4, wherein the moving piston 4 and the connecting hole are connected. The connection method is a sliding connection. When a sealing strip is provided on the mobile piston 4 and on the inner wall of the cylinder base 1 and the connecting base 2, the pneumatic switch is started, so that the mobile piston 4 moves downward. The connection method between the connecting bolt pull rod 6 and the mobile piston 4 is a threaded connection. A connecting hole is provided at the center of the guide slider 7 and corresponds to the bolt pull rod 6. The matching method between the bolt pull rod 6 and the connecting hole is a clearance fit. The inner wall of the guide slider 7 and the end face of the bolt pull rod 6 are connected with a fixed retaining spring, which drives the bolt pull rod 6 and the guide slider. 7 moves downward, the guide slider 7 is an inverted cone-shaped structure, and a guide surface is correspondingly provided on the side wall where the moving slide rod 8 contacts the guide slider 7. A limited hole is opened in the inner cavity of the connecting base 2 and corresponds to the moving slide rod 8, wherein the connection mode of the moving slide rod 8 and the limited hole is a sliding connection. The moving slide rod 8 is provided with four groups, wherein one end of the four groups of moving slide rods 8 is located at the four corners of the connecting base 2, and the outer wall of the moving slide rod 8 and the jacking spring 9 are matched in a clearance fit, and the outer wall of the moving slide rod 8 and the jacking spring 9 are provided with a fixed card table. Under the condition, one end of the movable slide rod 8 is driven to move toward the four corners of the connecting base 2, and the spring 9 is lifted and compressed. A sealing ring is provided on the outer wall of the sealing piston 11 and corresponds to the inner wall of the rivet placement hole 10. The rivet placement hole 10 and the fixed rivet 14 are matched in a clearance fit. An annular groove is provided on the outer wall of the fixed rivet 14 and corresponds to the movable slide rod 8. Under the condition that the matching mode of the movable slide rod 8 and the annular groove is a clearance fit, the fixed rivet 14 is fixed by the movable slide rod 8, thereby completing the installation of the clamping vise 15.

[0030] When the clamping vise 15 needs to be disassembled, the clamping vise 15 is quickly ejected under the reaction force of the return spring 5 , the lifting spring 9 and the compression spring 12 .

[0031] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic zero-point fixture, comprising a cylinder base (1), characterized in that: The end surface of the cylinder base (1) is connected to a connecting base (2) by bolts, and the side walls of the cylinder base (1) are provided with air pipe joints (3), and a movable piston (4) is connected in the inner cavity of the cylinder base (1) and the connecting base (2) and located above the air pipe joint (3), and a plurality of reset springs (5) are provided on the end surface of the movable piston (4) and the top of the connecting base (2), and a bolt pull rod (6) is connected at the center of the end surface of the movable piston (4), and a guide slider (7) is connected to the side wall of the bolt pull rod (6), and a plurality of movable slide rods (8) are connected on the side wall of the guide slider (7) and located in the inner cavity of the connecting base (2), and the inner cavity of the connecting base (2) is provided with a plurality of reset springs (5). A lifting spring (9) is provided on the side wall of the movable slide rod (8), a rivet placement hole (10) is provided on the connecting base (2) and at one end of the movable slide rod (8), a sealing piston (11) is connected in the inner cavity of the rivet placement hole (10), a compression spring (12) is connected on the end surface of the sealing piston (11), a movable top plate (13) is connected in the inner cavity of the rivet placement hole (10) and at the end surface of the compression spring (12), a fixed rivet (14) is connected in the inner cavity of the rivet placement hole (10) and at the end surface of the movable top plate (13), and a clamping vise (15) is connected on the end surface of the connecting base (2) and at the fixed rivet (14).

2. A pneumatic zero-point fixture according to claim 1, characterized in that: A through vent hole is provided on the cylinder base (1) and corresponds to the air pipe joint (3). The air pipe joint (3) is connected to a pneumatic switch via a conduit. A sealing ring is provided on the contact surface between the cylinder base (1) and the connecting base (2).

3. The pneumatic zero-point fixture according to claim 1, characterized in that: Connecting holes are provided in the inner cavities of the cylinder base (1) and the connecting base (2) and corresponding to the movable piston (4), wherein the movable piston (4) and the connecting holes are connected in a sliding manner, and sealing strips are provided on the movable piston (4) and corresponding to the inner walls of the cylinder base (1) and the connecting base (2).

4. The pneumatic zero-point fixture according to claim 1, characterized in that: The bolt pull rod (6) and the movable piston (4) are connected by a threaded connection. A connecting hole is provided at the center of the guide slider (7) and corresponding to the bolt pull rod (6). The bolt pull rod (6) and the connecting hole are matched by a clearance fit. A fixed retaining spring is connected on the inner wall of the guide slider (7) and on the end face of the bolt pull rod (6).

5. The pneumatic zero-point fixture according to claim 1, characterized in that: The guide slider (7) is an inverted conical structure, and a guide surface is correspondingly provided on the side wall where the movable slide rod (8) contacts the guide slider (7). A limiting hole is provided in the inner cavity of the connecting base (2) and corresponding to the movable slide rod (8), wherein the movable slide rod (8) and the limiting hole are connected in a sliding manner.

6. The pneumatic zero-point fixture according to claim 1, characterized in that: The movable slide rods (8) are provided in four groups, wherein one end of the four groups of movable slide rods (8) is located at the four corners of the connecting base (2), the outer wall of the movable slide rod (8) and the lifting spring (9) are matched in a clearance fit, the outer wall of the movable slide rod (8) and the lifting spring (9) are provided with a fixed clamping table, the outer wall of the sealing piston (11) and the inner wall of the rivet placement hole (10) are provided with a sealing ring, and the rivet placement hole (10) and the fixed rivet (14) are matched in a clearance fit.

7. The pneumatic zero-point fixture according to claim 1, characterized in that: An annular groove is provided on the outer wall of the fixed rivet (14) and corresponds to the movable slide rod (8), wherein the movable slide rod (8) and the annular groove are matched in a clearance fit, and the fixed rivet (14) and the clamping vise (15) are connected in a threaded connection.

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