Pneumatic device suitable for large-clamping-force vice

Abstract

The utility model discloses a pneumatic device suitable for a vise with large clamping force, which comprises a U-shaped seat, a locking seat fixedly mounted at the front end of the U-shaped seat, a threaded sleeve arranged between the U-shaped seat and the locking seat, a screw rod in threaded connection with the inside of the threaded sleeve, a gear fixedly mounted on the threaded sleeve, an air cylinder arranged above the U-shaped seat, and an air cylinder arranged above the air cylinder. A push block is fixedly installed at the end of an output shaft of the air cylinder, a rack is fixedly installed at the bottom end of the push block, and the rack is connected with the gear in an engaged mode. The air cylinder drives the rack to move through the pushing block, the rack is connected with the gear in a meshed mode to drive the threaded sleeve to rotate on the U-shaped base and the locking base, in the rotating process of the threaded sleeve, the screw rod can be driven to move through spiral variable force, a movable vice block of the vice is driven to clamp or loosen, the clamping force of the vice is greatly improved, and the clamping efficiency is improved. The problem that when the vice is used, a workpiece is prone to loosening due to insufficient clamping force is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vise accessories, in particular to a pneumatic device suitable for vises with large clamping force. Background Art

[0002] Pneumatic vises, also known as pneumatic flat-nose pliers, pneumatic vises, and pneumatic bench vises, are quick-action clamps used in high-volume production processes such as dual-spindle CNC machines, CNC machining centers, milling machines, and drilling machines. Existing pneumatic vises often suffer from insufficient clamping force, which can lead to workpiece loosening during roughing of steel parts. To address this issue, we have developed a pneumatic device for high-clamping vises. Utility Model Content

[0003] The purpose of the utility model is to provide a pneumatic device suitable for a vise with large clamping force, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a pneumatic device suitable for a high-clamping-force vise, comprising:

[0005] A U-shaped seat, a locking seat is fixedly installed at the front end of the U-shaped seat, a threaded sleeve is provided between the U-shaped seat and the locking seat, a screw is connected to the inner thread of the threaded sleeve, a gear is fixedly installed on the threaded sleeve, a cylinder is provided above the U-shaped seat, a push block is fixedly installed at the end of the output shaft of the cylinder, a rack is fixedly installed at the bottom end of the push block, and the rack is meshed with the gear.

[0006] Preferably, both the U-shaped seat and the locking seat are provided with through openings, and the screw rod is arranged in the two through openings.

[0007] Preferably, the inner walls of the U-shaped seat and the locking seat are both provided with mounting grooves, the mounting grooves are concentrically arranged with the through opening, bearings are installed in the mounting grooves, and the threaded sleeves are fixedly installed on the two bearings.

[0008] Preferably, L-shaped connecting seats are fixedly installed at both ends of the cylinder, and a pair of mounting holes are opened on the L-shaped connecting seats.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The U-shaped base and the two L-shaped connecting bases are fixedly mounted on the vise, and the movable jaw block of the vise is mounted on one end of the screw rod. When the vise is needed to clamp, the cylinder can be started, and the cylinder drives the rack to move through the push block, and the rack drives the threaded sleeve to rotate on the U-shaped base and the locking seat through the meshing connection with the gear. During the rotation of the threaded sleeve, the screw rod can be driven to move by the spiral variable force, and the movable jaw block of the vise can be driven to clamp or loosen, thereby greatly improving the clamping force of the vise and avoiding the problem that the workpiece is easily loosened due to insufficient clamping force when the vise is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of a pneumatic device suitable for a large clamping force vise proposed by the utility model;

[0012] Figure 2 This is a three-dimensional structural diagram of the connection between the U-shaped seat and the threaded sleeve in a pneumatic device suitable for a large clamping force vise proposed by the utility model;

[0013] Figure 3 This is a three-dimensional structural diagram of the connection between the cylinder and the rack in a pneumatic device suitable for a high-clamping-force vise proposed by the utility model.

[0014] In the figure: 1. U-shaped seat; 2. Locking seat; 3. Threaded sleeve; 4. Screw; 5. Gear; 6. Cylinder; 7. Push block; 8. Rack; 9. Through port; 10. Mounting slot; 11. Bearing; 12. L-shaped connecting seat; 13. Mounting hole. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1-3 The utility model provides a technical solution: a pneumatic device suitable for a large clamping force vise, comprising:

[0017] A U-shaped seat 1 is provided with a locking seat 2 fixedly installed at the front end of the U-shaped seat 1, a threaded sleeve 3 is provided between the U-shaped seat 1 and the locking seat 2, a screw rod 4 is connected to the internal thread of the threaded sleeve 3, a gear 5 is fixedly installed on the threaded sleeve 5, a cylinder 6 is provided above the U-shaped seat 1, a push block 7 is fixedly installed at the end of the output shaft of the cylinder 6, a rack 8 is fixedly installed at the bottom end of the push block 7, the rack 8 is meshed with the gear 5, after the cylinder 6 is started, the rack 8 can be driven to move by the push block 7, and the rack 8 can drive the threaded sleeve 3 to rotate on the U-shaped seat and the locking seat 2 during the movement through the meshing connection with the gear 5, and the threaded sleeve 3 can drive the screw rod 4 to move by the spiral variable force during the rotation.

[0018] The U-shaped seat 1 and the locking seat 2 are both provided with through openings 9 , and the screw rod 4 is arranged in the two through openings 9 . The through openings 9 are used to facilitate the movement of the screw rod 4 .

[0019] The inner walls of the U-shaped seat 1 and the locking seat 2 are both provided with mounting grooves 10, and the mounting grooves 10 are concentrically arranged with the through opening 9. Bearings 11 are installed in the mounting grooves 10, and the threaded sleeve 3 is fixedly mounted on the two bearings 11. The bearings 11 facilitate the rotation of the threaded sleeve 3 on the U-shaped seat 1 and the locking seat 2.

[0020] Both ends of the cylinder 6 are fixedly mounted with an L-shaped connecting seat 12, and a pair of mounting holes 13 are opened on the L-shaped connecting seat 12. The L-shaped connecting seat 12 is used to fix the cylinder 6 on the mounting plate of the vise, and the mounting holes 13 can fix the L-shaped connecting seat 12 by fastening bolts.

[0021] Working principle: When the utility model is in use, the U-shaped seat 1 and the two L-shaped connecting seats 12 are fixedly installed on the vise, and the movable jaw of the vise is installed at one end of the screw rod 4. When the vise needs to be clamped, the cylinder 6 can be started, and the cylinder 6 drives the rack 8 to move through the push block 7. The rack 8 drives the threaded sleeve 3 to rotate on the U-shaped seat and the locking seat 2 through the engagement connection with the gear 5. During the rotation of the threaded sleeve 3, the screw rod 4 can be driven to move through the spiral variable force, driving the movable jaw of the vise to clamp or loosen, which greatly improves the clamping force of the vise and avoids the problem of the workpiece being easily loosened due to insufficient clamping force when the vise is in use.

[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0023] 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 device suitable for a high-clamping-force vise, characterized in that: include: A U-shaped seat (1) is provided, wherein a locking seat (2) is fixedly installed at the front end of the U-shaped seat (1), a threaded sleeve (3) is provided between the U-shaped seat (1) and the locking seat (2), a screw rod (4) is connected to the internal thread of the threaded sleeve (3), a gear (5) is fixedly installed on the threaded sleeve (3), a cylinder (6) is provided above the U-shaped seat (1), a push block (7) is fixedly installed at the end of the output shaft of the cylinder (6), a rack (8) is fixedly installed at the bottom end of the push block (7), and the rack (8) is meshed with the gear (5).

2. A pneumatic device suitable for a high-clamping-force vise according to claim 1, characterized in that: The U-shaped seat (1) and the locking seat (2) are both provided with through openings (9), and the screw rod (4) is arranged in the two through openings (9).

3. The pneumatic device for a high-clamping-force vise according to claim 1, characterized in that: The inner walls of the U-shaped seat (1) and the locking seat (2) are both provided with mounting grooves (10), the mounting grooves (10) are arranged concentrically with the through opening (9), bearings (11) are installed in the mounting grooves (10), and the threaded sleeves (3) are fixedly mounted on the two bearings (11).

4. A pneumatic device suitable for a high-clamping-force vise according to claim 1, characterized in that: An L-shaped connecting seat (12) is fixedly mounted on both ends of the cylinder (6), and a pair of mounting holes (13) is formed on the L-shaped connecting seat (12).

Images