CN107486796B

CN107486796B - Vice jaw

Info

Publication number: CN107486796B
Application number: CN201610407327.XA
Authority: CN
Inventors: 康晓峰; 吴森喜; 陆敏; 蒋伟伟; 姚文艳
Original assignee: Schaffner Electromagnetic Compatibility Shanghai Co Ltd
Current assignee: Schaffner Electromagnetic Compatibility Shanghai Co Ltd
Priority date: 2016-06-12
Filing date: 2016-06-12
Publication date: 2023-04-25
Anticipated expiration: 2036-06-12
Also published as: CN107486796A

Abstract

A vise, comprising: a movable portion and a fixed portion fixedly provided with a jaw therebetween; the vise further includes: a clamping mechanism provided at one of the fixed portion and the movable portion, the one serving as a mounting portion; the clamping mechanism comprises: and the clamping and pressing part is arranged outside the mounting part and used for moving towards the mounting part to clamp and press the wire harness on the mounting part. By means of the technical scheme, no matter the wire harness with the large wire diameter or the sheath wire with the resilience force is knotted, the wire harness is fixed in a clamping mode, the problem that the starting part falls off easily cannot occur, and the wire harness fixing device is applicable to wire harnesses with various wire diameters and wire harnesses with the resilience force.

Description

Vice jaw

Technical Field

The invention relates to the technical field of vices, in particular to a vice.

Background

In the consumer electronics, semiconductor, filter, transformer manufacturing industries, there are large-scale inductor applications, inductor winding often needs to be done manually due to cost issues or equipment capacity limitations, and a vice for holding a magnetic ring or rod is used in the manual winding process.

Referring to fig. 1, a vise 1 has jaws 10. During winding, firstly, the magnetic ring 11 is fixed on the jaw 10, and the enameled wire 12 passes through the magnetic ring 10 and starts winding. In the prior art, a common practice in the manual winding industry is to install a winding post 13 at a position close to the jaw 10, so that the enameled wire 12 with a smaller wire diameter winds the starting part on the winding post 13 at the beginning of winding to fix the enameled wire 12.

The wire harness fixing mode has the following defects: because the wire harness is manually wound on the winding post, the problem that the starting part is easy to loosen can occur for the coil with large wire diameter and the elastic sheath wire.

Disclosure of Invention

The invention solves the problem that the starting part of the wire harness is easy to loose for the coil with large wire diameter and the elastic sheath wire in the existing manual winding.

In order to solve the above problems, the present invention provides a vice comprising: a movable portion and a fixed portion fixedly provided with a jaw therebetween; the vise further includes: a clamping mechanism provided at one of the fixed portion and the movable portion, the one serving as a mounting portion; the clamping mechanism comprises: and the clamping and pressing part is arranged outside the mounting part and used for moving towards the mounting part to clamp and press the wire harness on the mounting part.

Optionally, the clamping mechanism includes: at least two said clamping and pressing parts.

Optionally, all the clamping portions pass through the same straight line.

Optionally, the clamping mechanism further comprises: and the driving part is used for driving the clamping part to move towards the mounting part until the wire harness is clamped on the mounting part.

Optionally, the clamping mechanism includes: the driving part is used for simultaneously driving all the clamping parts to move towards the mounting part.

Optionally, the driving part outputs a linear motion, and the clamping mechanism further includes: a transmission shaft;

the first transmission mechanism is arranged between the driving part and the transmission shaft and is used for converting the linear motion output by the driving part into the rotary motion of the transmission shaft along the central axis of the transmission shaft;

the second transmission mechanism is arranged between the transmission shaft and one of the clamping and pressing parts and is used for converting the rotary motion into linear motion of the one of the clamping and pressing parts towards the mounting part;

and the third transmission mechanism is arranged between the transmission shaft and the other clamping and pressing part and is used for converting the rotary motion into linear motion of the other clamping and pressing part towards the mounting part.

Optionally, the first transmission mechanism is: a first radial projection provided on the drive shaft; the driving part is used for outputting linear motion to drive the first radial protruding part and the transmission shaft to rotate.

Optionally, an adjusting part is arranged on the output shaft of the driving part in a threaded fit manner, and the output shaft of the driving part drives the first radial protruding part to rotate through the adjusting part.

Optionally, the first transmission mechanism is a screw transmission mechanism.

Optionally, the first transmission mechanism is a rack and pinion transmission mechanism.

Optionally, the second transmission mechanism includes: a second radial projection provided on the drive shaft; a link having a rotation shaft and rotatable about the rotation shaft; the one clamping part is provided with a first shaft extending into the mounting part; one end of the connecting rod and one of the first shafts are provided with a first pin, the other one of the connecting rod and the first shaft is provided with a first hole, the first pin stretches into the first hole and has a gap with the hole wall of the first hole, and the other end of the connecting rod is abutted with the second radial protruding part along the rotation direction of the transmission shaft.

Optionally, the third transmission mechanism includes: a third radial projection provided on the drive shaft; the other clamping and pressing part is provided with a second shaft extending into the mounting part; one of the third radial protruding part and the second shaft is provided with a second pin, and the other is provided with a second hole, and the second pin stretches into the second hole and has a gap with the hole wall of the second hole.

Optionally, the driving part is a cylinder, a hydraulic cylinder, or a solenoid valve.

Optionally, the driving part outputs a rotational motion, and the clamping mechanism includes: and the transmission mechanism is used for converting the rotary motion of the driving part into linear motion of the two clamping and pressing parts towards the mounting part.

Optionally, the transmission mechanism is a rack and pinion transmission mechanism.

Optionally, a threaded hole is formed in the mounting portion, a threaded shaft is arranged on the clamping portion, and the threaded shaft and the threaded hole form threaded fit.

Optionally, the clamping mechanism further comprises: an elastic member; the elastic piece is used for: the clamping part is pressed by the clamping part to deform when moving towards the mounting part, and the clamping part is driven to reversely move to reset when rebounding.

Compared with the prior art, the technical scheme of the invention has the following advantages:

at the time of winding, the wire harness is sandwiched between the sandwiching portion and the mounting portion. In the existing wire harness fixing mode, the wire harness with large wire diameter is not easy to tie, and even if the wire harness can tie, the wire harness is easy to loosen; the sheathing thread having the elastic force is easily rebounded after being knotted. Unlike the prior art, by utilizing the technical scheme, no matter the large-wire-diameter wire harness or the sheath wire with the resilience force is knotted, the wire harness is fixed in a clamping and pressing mode, the problem that the starting part falls off easily cannot occur, and the wire harness fixing device is applicable to wire harnesses with various wire diameters and wire harnesses with the resilience force.

Drawings

FIG. 1 is a perspective view of a prior art vise;

FIG. 2 is a perspective view of a vise in accordance with an embodiment of the present invention;

fig. 3 is a sectional view of the vise shown in fig. 2 in the CC direction.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

Referring to fig. 2, the vise includes: a movable portion and a fixed portion 2 fixedly provided, and a jaw 21 is provided between the movable portion and the fixed portion 2, and the movable portion can serve as the mounting portion 3. The vice further comprises: the clamping mechanism 4 is arranged on the mounting part 3. The clamping mechanism 4 includes: the clamping portions provided outside the mounting portion 3 are a first clamping portion 40' and a second clamping portion 40″ respectively for moving toward the mounting portion 3 to clamp the wire harness 5 to the mounting portion 3.

At the time of winding, the wire harness 5 is sandwiched between the sandwiching portion and the mounting portion 3. In the existing wire harness fixing mode, the wire harness with large wire diameter is not easy to tie, and even if the wire harness can tie, the wire harness is easy to loosen; the sheathing thread having the elastic force is easily rebounded after being knotted. Unlike the prior art, by utilizing the technical scheme, no matter the large-wire-diameter wire harness or the sheath wire with the resilience force is knotted, the wire harness is fixed in a clamping and pressing mode, the problem that the starting part falls off easily cannot occur, and the wire harness fixing device is applicable to wire harnesses with various wire diameters and wire harnesses with the resilience force.

The movable part is selected as the mounting part 3 of the clamping mechanism 4, which provides sufficient space for loading the clamping mechanism 4, the clamping mechanism 4 being movable in synchronization with the mounting part 3. As an alternative, either one of the fixed portion 2 and the movable portion may be used as the mounting portion for mounting the holding mechanism 4 under the condition that the mounting space allows or under the condition that the mounting condition can be satisfied with a slight improvement.

In the vice, the movable part is movable relative to the fixed part 2 towards the fixed part 2 and away from the fixed part 2 to adjust the size of the jaws 21. Wherein, the movable part is provided with a guide rail 14, the movable part is mounted on the fixed part 2 through the guide rail 14, and the guide rail 14 is in sliding fit with the fixed part 2. The guide rail 14 is provided in a rectangular parallelepiped or other prism shape so that relative rotation between the guide rail 14 and the fixed portion 2 is prevented. A support mechanism 15 is provided at the fixing portion 2 to fix and support the entire vice.

A screw transmission mechanism can be arranged between the movable part and the fixed part 2. The screw drive may include: a screw 30 passing through the movable part, the guide rail 14 and the fixed part 2 and having a screw handle 31 exposed to the outside of the movable part, the screw 30 being rotatable about its own central axis but being limited to axial movement within the movable part; a screw nut (not shown) fixedly installed with the movable part and forming a screw nut engagement with the screw 30. The screwing handle 31 is rotated in opposite directions, the rotational movement of the screw rod 30 is converted into linear movement of the screw nut and the movable part, and the movable part can slide relative to the fixed part 2 through the guide rail 14 to adjust the size of the jaw 21.

The clamping mechanism 4 may comprise: the two clamping portions are a first clamping portion 40' and a second clamping portion 40 ", respectively. When the length of the beginning part of the wire harness 5 is required to be longer, a certain distance is reserved between the two clamping and pressing parts, so that the corresponding design requirement can be met. Furthermore, the two crimping portions can more firmly fix the wire harness of a large wire diameter. Thus, as a further improvement, the clamping portions in the clamping mechanism may not be limited to two, and the clamping mechanism may include at least two clamping portions.

The two clamping and pressing parts are arranged outside the mounting part 3 and can pass through the same straight line. When the clamping mechanism comprises more than two clamping portions, all clamping portions may pass through the same straight line. Thus, when the wire harness 5 is clamped, the leading portion of the wire harness 5 can be placed between the two clamping portions and the mounting portion 3 simultaneously along a straight line, and the operation is relatively easy. Moreover, all the clamping and pressing parts are regularly arranged along a straight line, so that the manufacturing and assembling process of the vice is easy to control, and the manufacturing controllability is high.

Referring to fig. 3, the clamping mechanism 4 further includes: and a driving part 41 for driving the crimping part to move toward the mounting part 3 to crimp the wire harness 5 to the mounting part 3. First, the beginning portion of the wire harness 5 may be placed between the nip portion and the mounting portion 3; thereafter, the operation driving portion 41 drives the crimping portion toward the mounting portion 3 to crimp the wire harness 5.

The wire harness 5 can be easily clamped by the driving unit 41. The driving portion 41 may be provided on the mounting portion 3, so that the structure of the vice is more compact.

The clamping mechanism 4 of the present technical solution includes: the driving portion 41 may be used to simultaneously drive all the nip portions toward the mounting portion 3. The driving unit 41 may output a linear motion, and the clamping mechanism 4 may include: a drive shaft 42;

the first transmission mechanism 43 is arranged between the driving part 41 and the transmission shaft 42, and is used for converting the linear motion output by the driving part 41 into the rotary motion of the transmission shaft 42 along the central axis of the transmission shaft;

a second transmission mechanism 44 disposed between the transmission shaft 42 and one of the clamping portions (the first clamping portion 40 'on the left side) for converting the rotational movement output from the transmission shaft 42 into a linear movement of the first clamping portion 40' toward the mounting portion 3;

and a third transmission mechanism 45 provided between the transmission shaft 42 and the other of the nip portions (the second nip portion 40″ on the right side) for converting the rotational movement output from the transmission shaft 42 into a linear movement of the second nip portion 40″ toward the mounting portion 3.

By using the transmission shaft 42, the first transmission mechanism 43, the second transmission mechanism 44 and the third transmission mechanism 45, the driving part 41 can drive the two clamping parts to move towards the fixed part 2 at the same time, and the two clamping parts do not need to be operated to move respectively, so that the operation is more convenient, and the control efficiency is high. The transmission shaft 42, the first transmission mechanism 43, the second transmission mechanism 44 and the third transmission mechanism 45 can be integrated in the mounting part 3, the integration level of the vice is improved, and the structure is more compact.

Specifically, the first transmission mechanism 43 may be: the driving part 41 is arranged on the first radial protruding part 46 of the transmission shaft 42 and is used for outputting linear motion to drive the first radial protruding part 46 and the transmission shaft 42 to rotate. When the driving portion 41 moves linearly toward the first radial protrusion 46, the first radial protrusion 46 is pushed to drive the driving shaft 42 to move around its central axis.

The driving section 41 may be a cylinder, a hydraulic cylinder, or a solenoid valve. Taking a cylinder as an example, a piston 410 and a piston rod 411 are provided in the cylinder, the piston rod 411 being aligned with the first radial protrusion 46. Inflation of the cylinder occurs, and the air pressure pushes the piston 410 and the piston rod 411 to move, and the piston rod 411 drives the first radial protrusion 46 and the transmission shaft 42 to rotate. During the crimping of the wire harness 5, an inflated state may be maintained to maintain the wire harness 5 crimped state. The cylinder has small volume and convenient operation, and can provide the required air pressure. And the air cylinder uses air as a moving medium, so that the control is easy, and the leakage problem to the construction site can be avoided.

The output shaft of the driving part 41 (i.e. the piston rod 411) is provided with an adjusting part 6 in a threaded fit manner, and the output shaft of the driving part 41 drives the first radial protruding part 46 to rotate through the adjusting part 6. By screwing the adjustment part 6 relative to the piston rod 411, the distance of the piston rod 411 to the first radial protrusion 46 can be adjusted, thereby adjusting the rotatable angle range of the first radial protrusion 46 and the transmission shaft 42. Screwing the adjustment portion 6 in a direction approaching the first radial projection 46 can increase the rotatable angle range of the first radial projection 46; screwing the adjustment portion 6 in a direction away from the first radial projection 46 can reduce the rotatable angle range of the first radial projection 46.

The threaded engagement may be as follows: the end of the piston rod 411 is provided with external threads, and the adjusting part 6 can select a sleeve with internal threads; alternatively, the end of the piston rod may be configured as a sleeve having an internal thread, and the adjusting portion may be a screw having an external thread.

The hydraulic cylinder takes liquid as a moving medium. The solenoid valve is energized to drive the piston rod in motion to drive rotation of the first radial projection 46 and the drive shaft 42.

As a modification, the first transmission mechanism may be a screw transmission mechanism. In the screw rod transmission mechanism, the output end of the driving part can be provided with a nut, the driving part can drive the nut to do linear motion along the central axis, but the nut can not do rotary motion around the central axis of the driving part; the transmission shaft can be used as a screw rod, the nut can be sleeved on the screw rod in a threaded fit mode, and the screw rod can rotate around the central axis of the screw rod but cannot axially move. The driving part drives the nut to do linear motion, and the linear motion of the transmission shaft is limited to do rotary motion relative to the nut. In this case, the driving portion drives the drive shaft in two opposite directions, and the pinching portion may be controlled to move toward the mounting portion to pinch the wire harness and away from the mounting portion to loosen the wire harness.

As another modification, the first transmission mechanism may be a rack-and-pinion transmission mechanism. The output shaft of the driving part is provided with a rack, the transmission shaft is provided with a gear, and the rack is meshed with the gear. When the rack moves linearly, the driving gear drives the transmission shaft to rotate under the action of meshing force. In this case, the driving portion drives the drive shaft in two opposite directions, and the nip portion can be controlled to move in two directions toward and away from the mounting portion.

The second transmission mechanism 44 includes: a second radial projection 47 provided on the drive shaft 42; a link 49 having a rotation shaft 48 and rotatable about the rotation shaft 48; the first clamping portion 40' has a first shaft 50 extending into the mounting portion 3. One end (i.e., first end a) of the connecting rod 49 is provided with a first hole 490, and the first shaft 50 is provided with a first pin 51, and the first pin 51 extends into the first hole 490 with a gap between the wall of the first hole 490. The other end (i.e., the second end B) of the link 49 abuts against the second radial projection 47 in the rotation direction of the transmission shaft 42.

When the transmission shaft 42 and the second radial protrusion 47 rotate, the link 49 is driven by the second radial protrusion 47 to rotate around the rotation shaft 48. Because of the clearance between the first pin 51 and the wall of the first hole 490, the rotation of the link 49 about the rotation axis 48 is not blocked by the first shaft 50. The first pin 51 may be used to move within the first hole 490 along the wall of the first hole 490 to linearly move the first shaft 50 and the first nip 40' in the axial direction of the first shaft 50. As the link 49 rotates, the first pin 51 rotates about the rotation shaft 48. The wall of the first hole 490 receives the pressure of the first pin 51, and since the first shaft 50 cannot move in any direction perpendicular to the first shaft 50, a component force of the pressure in the axial direction of the first shaft 50 moves the first shaft 50 in the axial direction.

As shown in fig. 3, when the transmission shaft 42 moves counterclockwise, the first shaft 50 drives the first clamping portion 40' to move linearly toward the mounting portion 3. When the transmission shaft 42 moves clockwise, the first shaft 50 drives the first clamping portion 40' to move linearly away from the mounting portion 3.

The first pin 51 and the first hole 490 are engaged with each other to achieve linear movement of the first nip portion 40'. Thus, as an allowable improvement, one of the first shaft and one of the end of the link may be provided with the first pin and the other may be provided with the first hole.

The third transmission mechanism 45 includes: a third radial projection 52 provided on the drive shaft 42; the second nip portion 40″ is provided with a second shaft 53 extending into the mounting portion 3. The third radial projection 52 is provided with a second pin 55 and the second shaft 53 is provided with a second hole 530, the second pin 55 extending into the second hole 530 with a gap between the wall of the second hole 530.

The second pin 55 is adapted to move along the wall of the second hole 530 when the drive shaft 42 and the third radial projection 52 are rotated, and the second pin 55 is adapted to move along the wall of the second hole 530 to linearly move the second shaft 53 and the second nip 40″ axially along the second shaft 53 toward the mounting portion 3. And, when the transmission shaft 42 rotates counterclockwise, the second shaft 53 drives the second clamping portion 40″ to move linearly toward the mounting portion 3. When the transmission shaft 42 moves clockwise, the second shaft 53 drives the second clamping portion 40″ to move linearly away from the mounting portion 3.

As an allowable improvement, one of the third radial projection and the second shaft may be provided with a second pin and the other may be provided with a second hole for achieving a driving fit.

Thus, when the drive shaft 42 rotates counterclockwise, the first shaft 50 and the second shaft 53 can be simultaneously driven to move linearly in synchronization, so that the first nip portion 40' and the second nip portion 40″ move toward the mounting portion 3 and away from the mounting portion 3 at the same time. This can improve the work efficiency.

The first radial protruding part 46, the second radial protruding part 47 and the third radial protruding part 52 are integrated on the mounting ring 7, the mounting ring 7 is fixedly sleeved outside the transmission shaft 42, a shaft sleeve 8 is arranged between the mounting ring 7 and the transmission shaft 42, and the shaft sleeve 8 can enhance the connection strength of the mounting ring 7 and the transmission shaft 42. As an improvement, the first radial protruding part, the second radial protruding part and the third radial protruding part can be integrally formed with the transmission shaft.

The clamping mechanism 4 further comprises: and the elastic piece is used for: the pressing portion is pressed by the pressing portion to deform when the pressing portion moves toward the mounting portion 3, and is urged to reversely move to return when rebounding. After winding is completed, the elastic member may rebound to move the nip away from the mounting portion 20 to return. In addition, in the reset state, the elastic piece can apply elastic force to the clamping and pressing part to achieve the pre-tightening effect, so that the clamping and pressing part is kept stable.

The elastic members have two, a first elastic member 54' and a second elastic member 54 ", respectively. Taking the first clamping portion 40' as an example, the first elastic member 54' is disposed on a side of the first shaft 50 axially away from the first clamping portion 40 '.

In particular, when the clamping mechanism 4 includes the first transmission mechanism 43, the second transmission mechanism 44, and the third transmission mechanism 45 shown in fig. 3, the first pressing portion 40 'presses the first elastic member 54' to deform through the first shaft 50.

After the winding is finished, the piston rod 411 of the driving part 41 is operated to perform reverse linear motion, and the first elastic member 54 'rebounds to drive the first shaft 50 and the first clamping part 40' to move downwards;

the transmission shaft 42 moves clockwise through the second transmission mechanism 44, and then the second shaft 53 and the second clamping and pressing part 40″ are driven to move downwards through the third transmission mechanism 45 until the transmission shaft 42 is reset. In this case, the first elastic member 54 'may play a restoring role to both the first nip 40' and the second nip 40″ at the same time.

Wherein a groove 22 is provided in the mounting portion 3 for receiving the first resilient member 54', the first resilient member 54' axially abutting the first shaft 50.

The second elastic member 54 "is disposed between the second clamping portion 40" and the mounting portion 3, and the second elastic member 54 "can play a role in resetting the second clamping portion 40". A first accommodation groove 401 is provided on the surface of the second nip portion 40″ facing the mounting portion 3, and the mounting portion 3 is provided with a second accommodation groove 201 provided opposite to the first accommodation groove 401. Both ends of the second elastic member 54″ may be received in the first and second receiving

grooves

401 and 201, respectively.

Therefore, the elastic member can be provided at a reasonable position without interfering with the crimping of the wire harness 5.

The elastic member may be selected from a coil spring or other elastic body.

As a modification, the driving portion and the nip portion may be engaged in the following manner: the driving part may output a rotational motion, and the clamping mechanism may include: and the transmission mechanism is used for converting the rotary motion of the driving part into the linear motion of the two clamping and pressing parts towards the mounting part. For example, the transmission mechanism may be a rack-and-pinion mechanism, the two sandwiching portions have racks extending into the mounting portion, and the output shaft of the driving portion is provided with gears respectively engaged with the two racks. When the driving part rotates, the two gears synchronously rotate, so that the rack is driven to do linear motion.

As another modification, the clamping mechanism may not be provided with a driving portion. The press part is provided with a threaded shaft, the installation part is provided with a threaded hole, and the threaded shaft and the threaded hole form threaded fit. The clamping and pressing parts are screwed along two opposite directions, so that the clamping and pressing parts can be controlled to move along two directions close to the mounting part and away from the mounting part, and the clamping and pressing control of the clamping and pressing parts on the wire harness can be realized.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A vise, comprising: a movable portion and a fixed portion fixedly provided with a jaw therebetween;

characterized in that the vice further comprises: a clamping mechanism provided at one of the fixed portion and the movable portion, the one serving as a mounting portion;

the clamping mechanism comprises: the clamping and pressing part is arranged outside the mounting part and used for moving towards the mounting part to clamp the wire harness on the mounting part;

the clamping mechanism further comprises: a driving part for driving the clamping part to move towards the mounting part until the wire harness is clamped on the mounting part;

the clamping mechanism comprises: the driving parts are used for simultaneously driving all the clamping parts to move towards the mounting parts;

the driving part outputs linear motion, and the clamping mechanism further comprises: a transmission shaft;

the third transmission mechanism is arranged between the transmission shaft and the other clamping and pressing part and is used for converting the rotary motion into linear motion of the other clamping and pressing part towards the mounting part;

the first transmission mechanism is as follows: a first radial projection provided on the drive shaft; the driving part is used for outputting linear motion to drive the first radial protruding part and the transmission shaft to rotate;

the second transmission mechanism includes:

a second radial projection provided on the drive shaft;

a link having a rotation shaft and rotatable about the rotation shaft;

the one clamping part is provided with a first shaft extending into the mounting part;

one end of the connecting rod is provided with a first pin and the other end of the connecting rod is provided with a first hole, the first pin stretches into the first hole and has a gap with the hole wall of the first hole, and the other end of the connecting rod is abutted with the second radial protruding part along the rotation direction of the transmission shaft;

the third transmission mechanism includes:

a third radial projection provided on the drive shaft;

the other clamping and pressing part is provided with a second shaft extending into the mounting part;

one of the third radial protruding part and the second shaft is provided with a second pin, and the other is provided with a second hole, and the second pin stretches into the second hole and has a gap with the hole wall of the second hole.

2. The vice according to claim 1, wherein the output shaft of the driving portion is provided with an adjusting portion in a screw-fit manner, and the output shaft of the driving portion drives the first radial protrusion portion to rotate through the adjusting portion.

3. The vise of claim 1, wherein said driving portion being a pneumatic or hydraulic cylinder.

4. The vise of any one of claims 1-3, said clamping mechanism further comprising: two elastic members; the elastic piece is used for: the two clamping parts are pressed by the clamping parts to deform when moving towards the mounting part, and the clamping parts are driven to reversely move to reset when rebounding.