CN-117733752-B - Precision table pincers with adjustable clamping force

Abstract

The invention belongs to the technical field of table pliers, in particular to a precision table pliers with adjustable clamping force, which comprises a main chuck, a secondary chuck and a base, wherein the main chuck is fixedly connected with the base, the main chuck and the secondary chuck are oppositely arranged, the secondary chuck is slidably arranged on the base, a pressing block is elastically arranged in the base, a transmission rod is rotatably arranged in the secondary chuck, a spiral groove is formed in the outer wall of the transmission rod, a guide block is fixedly arranged in the secondary chuck, one end of the guide block extends into the spiral groove, one end of the transmission rod extends into the main chuck and is fixedly connected with a rotating ring, a transmission cylinder is rotatably arranged in the main chuck, one end of the transmission cylinder extends into the rotating ring, and a worm wheel is fixedly arranged on the outer wall of the transmission cylinder.

Inventors

• LI QIANGYUAN

Assignees

• 彰武华威五金工具有限公司

Dates

Publication Date

20260508

Application Date

20240202

Claims (5)

1. 1. The precision table clamp with the adjustable clamping force is characterized by comprising a main clamp head (1), an auxiliary clamp head (2) and a base (3), wherein the main clamp head (1) is fixedly connected with the base (3), the main clamp head (1) and the auxiliary clamp head (2) are oppositely arranged, and the auxiliary clamp head (2) is slidably arranged on the base (3); The inner part of the base (3) is elastically provided with a pressing block (7), the inner part of the auxiliary chuck (2) is rotatably provided with a transmission rod (8), the outer wall of the transmission rod (8) is provided with a spiral groove (9), the inner part of the auxiliary chuck (2) is fixedly provided with a guide block (10), and one end of the guide block (10) extends into the spiral groove (9); One end of the transmission rod (8) extends to the inside of the main chuck (1) and is fixedly connected with a rotating ring (11), a transmission cylinder (15) is rotatably arranged in the main chuck (1), and one end of the transmission cylinder (15) extends to the inside of the rotating ring (11); The outer wall of the transmission cylinder (15) is fixedly provided with a worm wheel (12), and the inside of the main chuck (1) is rotatably provided with a worm (13) which is matched with the worm wheel (12); A clamping assembly is arranged in the transmission cylinder (15) and used for clamping the transmission cylinder (15) with the rotating ring (11); A sliding groove (14) is formed in the base (3), the pressing block (7) is slidably arranged in the sliding groove (14), and a pressing spring (21) is arranged at the bottom end of the pressing block (7); The bottom end of the sliding groove (14) is slidably provided with a top plate (22), the bottom end of the top plate (22) is rotatably provided with a cam (23), the side wall of the cam (23) is fixedly provided with a connecting rod (24), and one end of the connecting rod (24) far away from the cam (23) extends out of the outer wall of the auxiliary chuck (2) and is fixedly connected with a rotating block (6); A storage groove (25) is formed in the auxiliary chuck (2), and the storage groove (25) is communicated with the sliding groove (14); the storage groove (25) is provided with a cross valve clack (27) which is opened by pressure deformation at one end close to the sliding groove (14).
2. 2. The precision table clamp with adjustable clamping force according to claim 1, wherein the clamping assembly comprises a containing groove (17), a jacking ball (18), a clamping groove (19) and a sliding rod (16), the containing groove (17) is formed in a transmission cylinder (15), the jacking ball (18) is slidably mounted in the containing groove (17), the clamping groove (19) is formed in a rotating ring (11), and the sliding rod (16) is slidably mounted in the transmission cylinder (15) and is used for pushing the jacking ball (18) into the clamping groove (19).
3. 3. The precision table clamp with adjustable clamping force according to claim 2, wherein a pressing block (4) is fixedly arranged at one end of the sliding rod (16) far away from the rotating ring (11), and the top end of the worm (13) extends out of the outer wall of the main clamp head (1) and is fixedly provided with a knob (5).
4. 4. The precision table clamp with adjustable clamping force according to claim 3, wherein the top plate (22) is internally provided with a communication groove (26), the communication groove (26) is L-shaped, one end of the communication groove (26) faces the storage groove (25), and the other end faces the bottom end of the top plate (22).
5. 5. The precision table clamp with adjustable clamping force according to claim 4, wherein a sealing gasket (20) is fixedly arranged on the outer wall of the top plate (22), the sealing gasket (20) is arranged above the communication groove (26), and the sealing gasket (20) is also arranged on the outer wall of the bottom end of the top plate (22).

Description

Precision table pincers with adjustable clamping force Technical Field The invention belongs to the technical field of table pliers, and particularly relates to a precision table pliers with adjustable clamping force. Background The bench vice has the main function of clamping the workpiece so as to carry out various processing operations, the bench vice can fix the workpiece, keep the workpiece stable on a workbench and prevent the workpiece from moving in the processing process, the jaw of the bench vice can adjust the tightness so as to adapt to the workpieces with different sizes and shapes, and meanwhile, the bench vice can also adjust the position of the workpiece through rotation or translation so as to carry out the processing operations such as drilling, milling, turning, grinding and the like. However, when the bench vice in the prior art is used, the operation mode has a certain limitation, usually, a workpiece is fixed in advance by one hand, the size of the clamping opening is adjusted by rotating the screw by the other hand, so that the workpiece is clamped conveniently, the process is time-consuming due to the characteristics of the screw, the workpiece is held by one hand at the moment and then clamped, the physical strength of an operator is consumed greatly, and particularly in long-time work, the operation mode is easy to cause fatigue of the operator, so that the working quality and efficiency are affected. Therefore, the invention provides the precision table clamp with adjustable clamping force. Disclosure of Invention In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved. The invention solves the technical problems by adopting the technical scheme that the precision table clamp with adjustable clamping force comprises a main clamp head, an auxiliary clamp head and a base, wherein the main clamp head is fixedly connected with the base, the main clamp head and the auxiliary clamp head are oppositely arranged, the auxiliary clamp head is slidably arranged on the base, a workpiece to be processed is placed between the main clamp head and the auxiliary clamp head, and the workpiece can be clamped by controlling the auxiliary clamp head to slide towards the position of the main clamp head. The inside elastic mounting of base has the top briquetting, and the top briquetting sets up between main chuck and vice chuck, before carrying out the centre gripping to the work piece, can place the top at the top briquetting with the work piece for lift the work piece, effectual effort of saving, through elastic setting, can be when vice chuck is about to carry out the centre gripping to the work piece, the position of adjustment centre gripping work piece. The inside rotation of vice chuck installs the transfer line, and the helicla flute has been seted up to the outer wall of transfer line, and the inside fixed mounting of vice chuck has the guide block, and in the one end of guide block extended to the helicla flute, the bottom of vice chuck passed through slide rail connection with the top of base, when vice chuck slides along the outer wall of transfer line, can inject the slip orbit of vice chuck. The auxiliary chuck can slide towards the position of the main chuck by being pulled manually, the guide block inside the auxiliary chuck can slide along the inside of the spiral groove, and the transmission rod can rotate inside the auxiliary chuck due to the limited action track of the auxiliary chuck, so that the sliding of the auxiliary chuck can be limited by limiting the rotation of the transmission rod. One end of the transmission rod extends to the inside of the main chuck and is fixedly connected with a rotating ring, a transmission cylinder is rotatably arranged in the main chuck, and one end of the transmission cylinder extends to the inside of the rotating ring; when the auxiliary chuck slides on the base, the transmission rod drives the rotating ring to rotate in the main chuck, and one end of the transmission cylinder extends to the inside of the rotating ring and is connected with the rotating ring in a rotating mode. The outer wall fixed mounting of a transmission section of thick bamboo has the worm wheel, and the inside rotation of main chuck installs the worm with the worm wheel adaptation, can drive the worm wheel through rotating the worm and rotate, through the characteristic of worm wheel and worm for a transmission section of thick bamboo can't spin, can only control through the rotation of worm, and when vice chuck slides, the transfer line drives the rotation ring and rotates, and the rotation ring alright rotate at the outer wall of a transmission section of thick bamboo this moment. The inside of the transmission cylinder is provided with a clamping assembly for clamping the transmission cylinder with the rotating ring. The transmission cylinder and the rotating ring can be connected through the clampi