TW201801858A - Improved pressure adjustment structure for double fixation base power vise having multi-stage pressure adjusting function and multi-power boosting for clamping effect - Google Patents

Abstract

The present invention relates to an improved pressure adjustment structure for double fixation base power vise, which comprises a vise unit, a transmission unit, an adjustment unit and a multi-power unit; the vise unit has a fixed jaw fixedly arranged at the center of the top surface of the body, the top surface of the body is provided with a first movable jaw and a second movable jaw on both sides of the fixed jaw, respectively, and a first guide screw of the transmission unit is in a screw-thread combination with the front angle thread base and the second guide screw thereof is in a screw-thread combination with the back angle thread base; the adjusting unit is disposed on the body at one side of the front angle thread base, then the adjusting ring is actuated to link to the clutch ring so that the convex column of the guide screw is passively displaced to a position of the radial sliding and inclined groove of the clutch ring, the clutch ring and the adjusting ring may present in an axial rotation state; the multi-power unit is provided between the first and second guide screws so that the multi-power unit is just below the fixed jaw; therefore, not only can the two workpieces be simultaneously clamped, and also can the opening distance increase, and at the same time it can achieve doubling the effect of multi-power and booster clamping, and multi-stage adjustment for boosting pressure force.

Description

Improved pressure regulating structure of double clamp double force vise

The present invention relates to a "improvement of the pressure-adjusting structure of a double-clamp seat double-force vise," in particular to a double-clamp type vise with a multi-stage pressure-adjusting function and a double-force boosting clamping effect.

According to the design, the conventional double clamp vise structure is not provided with a structure type double force device, so when clamping two workpieces at the same time, not only the clamping force of the workpiece is insufficient, but it is easy to cause tool vibration or workpiece flying damage during processing The problem may even lead to the safety problem of the operator being thrown out and hurting the operator.

Faced with the problem of the conventional conventional double-clamp vise, some people have further developed the hydraulic double-clamp vise. Although a pressure increasing structure is added to increase the clamping force, it can avoid the problem of poor clamping force of the traditional vise. However, the hydraulic vise has a large number of components, which not only has a high overall production cost, but also is not easy for users to assemble and maintain. Moreover, the hydraulic vise is prone to cause oil leakage problems and indirectly affects it. The clamping force.

In addition, Taiwan Patent Bulletin No. M300156, an improvement of the double-force supercharging adjustment structure of the double-force vise, is mainly formed by rotating the clutch ring at a predetermined position on the wall surface, and a plurality of sections are formed in the multi-stage adjustment section. Several sections of adjustment and positioning section, and the sliding section has a radial section space type, and each section of adjustment and positioning sections has a section space type with different axial depth, the sliding section is connected to different sections Axial depth adjustment and positioning section; by this, a multi-stage selective and fast and accurate adjustment of the distance from the end of the driving barrel and control of the double force vise can be achieved The magnitude of the boosting power.

Although these structures can perform multi-stage adjustment of the boosting force, the sliding portion and the several-stage adjustment and positioning portion are in a 90-degree radial and axial communication type, and it is not easy to adjust the positioning portion from one of them. Sliding into the sliding part and then entering the set adjustment and positioning part, it is easy to cause interference and difficult to operate, and the operation process is more laborious and inconvenient. In addition, these structures do not have the clamping effect of double pressure boosting, making them The clamping force of the workpiece will still be limited. Therefore, it is necessary to further improve the lack of various known knowledge.

In view of the current improvement of the conventional structure, the inventor has been engaged in the production and marketing of related products for many years, and in consideration of the existing problems, thought about the improvement methods, and after several improvements and tests, finally invented a dual Improved pressure regulating structure of clamp double force vise.

For this reason, the main object of the present invention is to provide an improved pressure regulating structure of a double-clamping double-force vise that can be surely clamped when two workpieces are clamped at the same time, and the double-pressure boosting clamping effect is achieved.

Another object of the present invention is to provide an improved pressure regulating structure of a double-clamp double-force vise with a large opening.

Another object of the present invention is to provide a pressure-adjusting structure of a double-clamp double-force vise capable of performing multi-stage adjustment of the pressure boosting force, which is relatively easy to slide into the axial adjustment groove, has a simple operation method, and is effortless. Improvement.

In order to achieve the above object, the present invention proposes an improved pressure regulating structure of a double clamp double force vise, which includes: A vise unit having a body, the inner edges of the body are opposite to each other A guide rail is provided at each of the setting positions, and the two guide rails are respectively provided for a front angle seat with a first pressing slope and a second angle seat with a second pressing slope. The center of the top surface of the body is fixed and fixed. A jaw, and the top surface of the body is located on both sides of the fixed jaw, respectively, a first movable jaw with a first pressing rod and a second movable jaw with a second pressing rod, so that the first and second pressing rods Can be respectively pressed by the first and second pressing slopes; a transmission unit, the transmission unit is composed of a first lead screw, a second lead screw and a draw rod with a convex post at a position set on the outer periphery of the proximal end; The first lead screw forms a screw connection with the front corner socket, the second lead screw forms a screw connection with the rear corner socket, and the tie rod is threaded and fixed in the second lead screw; An adjustment unit is installed on the body and is located on one side of the front corner socket. The adjustment unit is composed of a push rod, a number of elastic elements, a pressure block, a screw sleeve, a clutch ring, a transparent It consists of a driving cylinder with a hole, an adjusting ring and a bolt; In the lead screw, the elastic element and the pressing block are installed on one end of the first lead screw, and the screw sleeve is used to screw the end of the first lead screw so that the pressing block can be pushed by the elastic element. And another elastic element is sleeved on the outer peripheral edge of one end of the first lead screw, the clutch ring is sleeved on the outer peripheral edge of the first lead screw, the clutch ring is provided with a plurality of axial adjustment grooves of different lengths, and each shaft A radial sliding inclined groove is continuously connected between the adjusting grooves, and each axial adjusting groove can be used for the relative sliding of the convex column of the first lead screw, and the clutch ring is different from the elastic element on one end surface. A limit block, and the driving barrel is screwed in the screw sleeve, so that the end of the driving barrel can be pushed against the push rod, and the driving barrel is provided with two stop blocks relative to the two limit blocks of the clutch ring And the adjusting ring is fixed with the clutch ring by using the bolt, so that the adjusting ring can be integrated with the clutch ring; a double force unit is installed on the first lead screw and the second guide Between the screws, the force doubler unit is located just below the fixed jaw.

The double force unit is composed of a set of tubes, several elastic elements, a thimble, a tie rod head, two toggle pieces and a stop; one end of the sleeve is screwed with the first lead screw, and The elastic element, the tie rod head and the stopper are installed in the sleeve. The tie rod head and the first lead screw are used for the elastic element installation, and the tie rod head passes through the stopper and the sleeve. Tube, between the stopper and the tie rod head is provided for the two elbow pieces, and the elastic element is installed in the tie rod head, and one end of the thimble is installed in the elastic element, under normal conditions, By the elastic force of the elastic element, the thimble can be pushed against the two elbow pieces, and one end of the pull rod head different from the thimble is inserted at one end of the pull rod, and the outer periphery of the pull rod and the second The elastic element is housed inside one end of the lead screw.

Wherein, the toggle piece is composed of two connecting rods and three round rods. The two sides of the two connecting rods are respectively penetrated by the round rods, and the joints of the two connecting rods are pivoted by the round rods, so that The round rods on both sides of the two connecting rods can abut against one side of the tie rod head and one side of the stopper, respectively.

Wherein, one side of the stopper has two concave arc portions, and each concave arc portion can be accommodated by the round rod.

Among them, the two elbow joints are generally in a V-shaped relative configuration.

It can further include a retaining ring, which is sleeved on one side of the drawbar head, so that the retaining ring fits into the second lead screw, so that both ends of the elastic element respectively abut against the second lead screw. Inside the lead screw and on one side of the retaining ring.

It may further include a thrust pin having an inclined surface at one end, and the thrust pin is installed in the first lead screw and can be pushed by the push rod.

The thrust pin is made of wear-resistant alloy steel.

Wherein, the inclination angle of the radial sliding inclined groove is between 10 and 30 degrees.

Among them, the inclination angle of the radial sliding inclined groove is preferably 25 degrees.

The following is further described in conjunction with the drawings of the preferred embodiment of the present invention, in order to enable those familiar with the related technology of the present invention to implement it according to the statements in this specification.

A‧‧‧Workpiece

1‧‧‧Vise Unit

10‧‧‧ Ontology

101‧‧‧rail

11‧‧‧ Front horn

111‧‧‧First pressing slope

12‧‧‧ posterior horn

121‧‧‧Second pressure slope

13‧‧‧ fixed jaw

14‧‧‧First movable jaw

141‧‧‧first plunger

15‧‧‧Second movable jaw

151‧‧‧ Second lever

2‧‧‧ adjustment unit

21‧‧‧Put

22‧‧‧Elastic element

23‧‧‧Elastic element

24‧‧‧ briquetting

25‧‧‧Screw

26‧‧‧ Clutch ring

261‧‧‧Axial adjustment groove

262‧‧‧Radial Sliding Slant Slot

263‧‧‧Limit block

27‧‧‧Driver

271‧‧‧through hole

272‧‧‧stop

28‧‧‧Adjustment ring

29‧‧‧ Bolt

3‧‧‧ Transmission unit

31‧‧‧first lead screw

311‧‧‧ convex post

32‧‧‧Second Lead Screw

34‧‧‧Trolley

35‧‧‧thrust pin

351‧‧‧inclined

4‧‧‧ Double Force Unit

41‧‧‧ Casing

42‧‧‧Elastic element

43‧‧‧Elastic element

44‧‧‧ thimble

45‧‧‧Trolley head

46‧‧‧ elbow pieces

461‧‧‧ connecting rod

462‧‧‧ round rod

47‧‧‧ stop

471‧‧‧Concave arc

48‧‧‧Elastic element

49‧‧‧Retaining ring

The first figure is a schematic diagram of the three-dimensional appearance of the present invention.

The second figure is a three-dimensional exploded view of the present invention.

The third figure is a three-dimensional exploded view of the adjustment unit of the present invention.

The fourth figure is a three-dimensional exploded view of the double force unit of the present invention.

The fifth figure is a schematic sectional view of the combination of the present invention.

The sixth figure is an enlarged schematic sectional view of a partial combination of the present invention.

The seventh diagram is a schematic cross-sectional view of a workpiece clamping operation according to an embodiment of the present invention.

The eighth diagram is a schematic diagram (a) of the voltage regulation action of the embodiment of the present invention.

The ninth figure is a schematic diagram of the pressure regulating action (2) of the embodiment of the present invention.

First, please refer to the first to ninth figures, the present invention is an improved pressure regulating structure of a double-clamp double-force vise, which includes: a vise unit 1 having a body 10 A set of guide rails 101 is provided at opposite positions of the inner edge surface of the body 10, and the two guide rails 101 are respectively provided with a front angle bracket 11 with a first pressing slope 111 and a rear angle bracket with a second pressing slope 121. 12 is slidably installed, a fixed jaw 13 is fixed at the center of the top surface of the body 10, and the first surface of the body 10 is located on both sides of the fixed jaw 13 A movable jaw 14 and a second movable jaw 15 with a second pressing rod 151, so that the first and second pressing rods 141 and 151 can be pressed by the first and second pressing inclined surfaces 111 and 121, respectively; a transmission unit 3. The transmission unit 3 is composed of a first lead screw 31, a second lead screw 32, and a tie rod 34 with a convex column 311 at a position set on the outer periphery of the proximal end; the first lead screw 31 and the rake angle The socket 11 forms a screw connection, and the second lead screw 32 and the posterior socket 12 form a screw connection, and the tie rod 34 is threaded and fixed in the second guide screw 32 (as shown in the second figure). ); An adjustment unit 2 is installed on the body 10 on one side of the front corner socket 11, the adjustment unit 2 is composed of a push rod 21, a number of elastic elements 22, 23, a pressure block 24. A screw sleeve 25, a clutch ring 26, a driving cylinder 27 with a through hole 271, an adjustment ring 28 and a bolt 29; the push rod 21 is threaded in the first lead screw 31, the The elastic element 22 and the pressing block 24 are installed on one end of the first lead screw 31, and the screw sleeve 25 is screwed on the end of the first lead screw 31, so that the pressing block 24 can be elasticized by the spring. The elastic element 22 is pushed, and another elastic element 23 is sleeved on the outer peripheral edge of one end of the first lead screw 31. The clutch ring 26 is sleeved on the outer peripheral edge of the first lead screw 31. The clutch ring 26 is provided with a number of different The length of the axial adjustment groove 261, and a radial sliding inclined groove 262 is connected between each of the axial adjustment grooves 261, and each of the axial adjustment grooves 261 can be used for relative sliding movement of the protrusion 311 of the first lead screw 31 In addition, the clutch ring 26 is different from the elastic element 23 on one end surface of which there are two limiting blocks 263 protruding, and the driving cylinder 27 is screwed in the screw sleeve 25 so that the end of the driving cylinder 27 can be pushed against the pushing Lever 21, and the driving cylinder 27 is provided with two stop blocks 272 at positions relative to the two limit blocks 263 of the clutch ring 26, and the adjustment ring 28 is fixed by the bolt 29 and the clutch ring 26 to make the adjustment The ring 28 can be integrated with the clutch ring 26 (as shown in the third figure); a double force unit 4 is installed between the first lead screw 31 and the second lead screw 32, so that the double force unit 4 is located exactly Below the fixed jaw 13, the force multiplier unit 4 is composed of a set of tubes 41, a number of elastic elements 42, 43, 48, a thimble 44, a tie rod head 45, two elbow pieces 46, and a stop 47 (such as the first (Shown in the four figures); one end of the sleeve 41 is screwed with the first lead screw 31, and the elastic element 42, the tie rod head 45 and the stopper 47 are installed in the sleeve 41, the tie rod The elastic element 42 is installed between the head 45 and the first lead screw 31, and the tie head 45 passes through the stopper 47 and the sleeve 41, and the stopper 47 and the tie rod 45 are provided between the stopper 47 and the tie rod 45. The two elbow pieces 46 are installed, and the elastic element 43 is installed in the tie rod head 45. One end of the thimble 44 is installed in the elastic element 43. Under normal conditions, by the elasticity of the elastic element 43 Force, so that the ejector pin 44 can abut against the two toggle piece 46, and the pull rod head 45 is inserted into one end of the pull rod 34 different from one end of the ejection pin 44, and the outer periphery of the pull rod 34 and the first Second Lead Screw 32 One end of the resilient element inside housing 48.

The toggle member 46 is composed of two connecting rods 461 and three round rods 462. The two sides of the two connecting rods 461 are respectively inserted through the round rods 462, and the joints of the two connecting rods 461 are inserted. Pivoting the round rod 462 allows the round rods 462 on both sides of the two connecting rods 461 to abut against one side of the tie head 45 and one side of the stopper 47, respectively.

Wherein, one stopper 47 has two concave arc portions 471 on each side, and each concave arc portion 471 can be accommodated by the round bar 462 respectively.

Among them, the two elbow pieces 46 are generally in a V-shaped relative arrangement.

The elastic elements 22, 23, 42, 43, 48 are springs.

It can further include a retaining ring 49, which is sleeved on one side of the drawbar head 45 so that the retaining ring 49 fits into the second lead screw 32 so that both ends of the elastic element 48 Abut against the inside of the second lead screw 32 and one side of the retaining ring 49 respectively.

It may further include a thrust pin 35 having an inclined surface 351 at one end, and the thrust pin 35 is installed in the first lead screw 31 and can be pushed by the push rod 21.

The thrust pin 35 is made of wear-resistant alloy steel.

The inclination angle of the radial sliding inclined groove 262 ranges from 10 to 30 degrees.

The inclination angle of the radial sliding inclined groove 262 is preferably 25 degrees.

The through hole 271 of the driving cylinder 27 is a hexagon socket.

With the combination of the above, please continue to refer to the first to ninth figures. The present invention is an improved pressure regulating structure of a double clamp double force vise, which can clamp two workpieces A at the same time. When the user wants to use the present invention to clamp the workpiece A, the user only needs to place the workpiece A between the fixed jaw 13 and the first movable jaw 14 and the fixed jaw 13 and the second movable jaw 15 respectively. After that, the first lead screw 31 can be rotated to perform the clamping operation of the workpiece A.

When the user rotates the first lead screw 31, it can drive the front corner socket 11 away from the adjustment unit 2 and cause it to move the first movable jaw 14 toward the fixed jaw 13 and to rotate the second lead screw 32, Make it drive the posterior corner socket 12 to move toward the adjusting unit 2 and synchronously drive the second movable jaw 15 to move toward the fixed jaw 13 (as shown in the seventh figure), so as to achieve the use of double-clamp vise. To ensure that the workpiece A is clamped smoothly and firmly, which is helpful for the subsequent processing of the workpiece A. The overall operation method is simple and convenient, and it is highly practical.

It is worth noting that a force doubler unit 4 is connected between the first lead screw 31 and the second lead screw 32 in the present invention, so that the double force unit 4 is located just below the fixed jaw 13, and when the user has After the workpiece A on the vise is clamped, when the user continues to operate the transmission unit 3, the push rod 21 inside the first lead screw 31 can be displaced, and the end of the push rod 21 can be pushed against the front thrust pin. 35, the inclined surface 351 at the end of the thrust pin 35 can push the round bar 462 of the generally V-shaped toggle member 46, and the link 461 of the two toggle member 46 is pivoted, and the stopper 47 is pushed, so that The sleeve 41 is linked with the first lead screw 31 to be displaced in the direction of the fixed jaw 13. When the first lead screw 31 is displaced, the front angle socket 11 can be synchronously driven to cause the first movable jaw 14 to be displaced in the direction of the fixed jaw 13 ( (As shown in the seventh figure), while the push rod 21 pushes against the toggle member 46, the pull rod 34 will generate a pulling force in the direction of the pull rod head 45, so that the workpiece A can be surely clamped, so that it can reach The clamping effect of double force boosting not only has fewer overall components, but also facilitates assembly and maintenance by users. Daoqiang is extremely suitable for industrial processing and has deep practicality.

When the workpiece A is to be removed, the first lead screw 31 only needs to be turned in the opposite direction, so that the front corner socket 11 will move the first movable jaw 14 away from the fixed jaw 13 and the toggle member 46 returns to a V shape. At the same time, the second lead screw 32 is actuated at the same time, so that the rear angle bracket 12 drives the second movable jaw 15 to move away from the fixed jaw 13 in this way. In this way, the workpiece A can be removed. The overall operation method is simple and convenient, and it is practical. Sex.

The double force unit 4 of the present invention is mainly disposed below the fixed jaw 13, which not only can increase the total length of the vise and maximize the size of the workpiece that can be clamped, but also can not only clamp two workpieces of the same size (such as (Shown in Figure 7), it is also possible to clamp two workpieces of different sizes. Of course, it is also possible to clamp only one workpiece, that is, one side has a larger opening and the other has an opening. The closed shape can not only surely clamp two workpieces at the same time, increase the opening distance, but also achieve the effect of double-force boosting clamping. At the same time, there are fewer overall components, which is convenient for users to assemble and maintain. Convenient and practical.

In addition, please refer to the eighth and ninth figures. When the user wants to adjust the relative distance between the clutch ring 26 and the end of the driving cylinder 27, the user can manually adjust the adjustment ring 28 to the rear side. Push (ie away from the direction of the fixed jaw 13) so that the adjusting ring 28 can interlock with the clutch ring 26 and passively displace the protrusion 311 of the first lead screw 31 to the position of the radial sliding inclined groove 262 of the clutch ring 26, The clutch ring 26 and the adjustment ring 28 can be adjusted by axial rotation. At this time, the elastic element 23 is in a compressed state, and the adjustment ring 28 is rotated axially to the position of the axial adjustment groove 261 desired by the convex post 311. And by the elastic restoring force of the elastic element 23, the clutch ring 26 can be integrally linked with the adjustment ring 28 to be elastically pushed forward with respect to the convex post 311 in the forward direction. In this way, the setting of the section of the adjustment ring 28 is completed, which can then be used for The user performs multi-stage adjustment of the boosting power of the double force vise, which is convenient and practical.

Moreover, the inclination angle of the radial sliding inclined groove 262 of the clutch ring 26 of the present invention can be set to be between 10 and 30 degrees, preferably 25 degrees. Therefore, when the user wants to perform multi-stage adjustment, increase the force of the vise. In the case of pressure, it is easier to slide into the axial adjustment groove 261 through the radial sliding inclined groove 262, and the overall operation method is simple, effortless, effortless, and convenient and practical.

In summary, the pressure regulating structure of the double-clamp double-force vise of the present invention is improved, which effectively improves various shortcomings of the conventional structure, and the main technical means of the present invention has not been found in any relevant publications. The application requirements for the patent are submitted in accordance with the law, and the Bureau is kindly requested to grant the patent right of this invention.

10‧‧‧ Ontology

101‧‧‧rail

11‧‧‧ Front horn

12‧‧‧ posterior horn

13‧‧‧ fixed jaw

14‧‧‧First movable jaw

141‧‧‧first plunger

15‧‧‧Second movable jaw

151‧‧‧ Second lever

2‧‧‧ adjustment unit

21‧‧‧Put

3‧‧‧ Transmission unit

31‧‧‧first lead screw

32‧‧‧Second Lead Screw

34‧‧‧Trolley

35‧‧‧thrust pin

4‧‧‧ Double Force Unit

41‧‧‧ Casing

Claims (10)

An improved pressure regulating structure of a double-clamp double-force vise includes a vise unit having a body, and a guide rail is respectively provided at a set position of an inner edge surface of the body, and the two guide rails are respectively provided for the vise unit. A front bracket with a first pressing slope and a second bracket with a second pressing slope are slidably arranged. A fixed jaw is fixed at the center of the top surface of the body, and the top surface of the body is located on the fixed jaw. A first movable jaw with a first pressing rod and a second movable jaw with a second pressing rod are respectively installed on both sides, so that the first and second pressing rods can be pressed by the first and second pressing inclined surfaces, respectively. A transmission unit, which is composed of a first lead screw, a second lead screw, and a tie rod with a convex post at the outer peripheral edge of the proximal end; the first lead screw is formed with the front angle socket The second guide screw is screwed with the posterior socket, and the tie rod is threaded and fixed in the second guide screw. An adjustment unit is installed on the body. On one side of the front corner socket, the adjusting unit is composed of a push rod and a plurality of springs. Element, a pressure block, a screw sleeve, a clutch ring, a drive cylinder with a through hole, an adjustment ring and a bolt; the push rod is penetrated in the first lead screw, the elastic element and the The pressing block is installed at one end of the first lead screw, and the screw sleeve is used to screw the end of the first lead screw, so that the pressing block can be pushed by the elastic element, and the other elastic element is set. The clutch ring is sleeved on the outer peripheral edge of one end of the first lead screw, the clutch ring is provided with a plurality of axial adjustment grooves of different lengths, and a diameter is continuously connected between the axial adjustment grooves. Inclined grooves are slid toward each other, and each of the axial adjustment grooves can be used for relative sliding movement of the convex column of the first lead screw. In addition, the clutch ring is different from one end surface of the elastic element, and two limiting blocks are convexly arranged. Set in the screw sleeve, so that the end of the driving cylinder can be pushed against the push rod, and the driving cylinder is opposite to the clutch Two stoppers are provided at the position of the second ring, and the adjusting ring is fixed with the clutch ring by using the bolt, so that the adjusting ring can integrally link the clutch ring; a double force unit, the double force unit It is installed between the first lead screw and the second lead screw so that the force doubler unit is located just below the fixed jaw. The pressure regulating structure of the double-clamp double-force vise described in item 1 of the scope of patent application is improved, wherein the double-force unit is composed of a set of tubes, several elastic elements, a thimble, a tie rod head, and two elbow joints. And one stopper; one end of the sleeve is screwed with the first lead screw, and the elastic element, the tie rod head and the stopper are installed in the sleeve, and the tie rod head and the first guide screw are installed in the sleeve; The elastic element is installed between the screws, and the stopper and the sleeve are passed through the drawbar head. The two elbow pieces are installed between the stopper and the drawbar head, and the elastic element is installed. It is set in the tie rod head, and one end of the thimble is installed in the elastic element. Under normal conditions, the thimble can be pushed against the two elbow pieces by the elastic force of the elastic element, and the tie rod head One end different from the thimble is inserted into one end of the pull rod, and the outer periphery of the pull rod and one end of the second lead screw house the elastic element inside. According to the improvement of the pressure regulating structure of the double-clamp double-force vise as described in item 2 of the patent application scope, wherein the toggle piece is composed of two links and three round rods, and the two sides of the two links are different The round rods are respectively inserted, and the round rods are pivoted at the joints of the two connecting rods, so that the round rods on both sides of the two connecting rods can respectively abut against one side of the rod head and one of the stoppers. side. According to the improvement of the pressure regulating structure of the double-clamp double-force vise as described in item 2 of the scope of patent application, one side of the stopper has two concave arc portions, and each concave arc portion can be accommodated by the round rod. . For example, the pressure regulating structure of the double-clamp double-force vise described in item 2 of the scope of the patent application is improved, wherein the two elbow joints are generally in a V-shaped relative setting. According to the improvement of the pressure regulating structure of the double clamp double force vise as described in item 2 of the scope of patent application, It can further include a retaining ring, which is sleeved on one side of the drawbar head, so that the retaining ring fits into the second lead screw, so that both ends of the elastic element respectively abut against the second lead screw. Inside the lead screw and on one side of the retaining ring. According to the improved pressure regulating structure of the double clamp double force vise described in item 2 of the scope of patent application, it may further include a thrust pin with an inclined surface at one end, and the thrust pin is installed in the first lead screw. And was able to be pushed by the putter. For example, the pressure regulating structure of the double clamp double force vise described in item 7 of the scope of patent application is improved, wherein the thrust pin is made of wear-resistant alloy steel. According to the improved pressure regulating structure of the double-clamp double-force vise described in item 1 of the scope of the patent application, the inclination angle boundary of the radial sliding inclined groove is between 10 and 30 degrees. For example, the pressure regulating structure of the double-clamp double-force vice vise described in item 9 of the scope of the patent application is improved, wherein the inclination angle of the radial sliding inclined groove is preferably 25 degrees.