Practical pressurizing vice

Abstract

The invention discloses a practical pressurizing vice which comprises a vice body, a fixed jaw is arranged on one side of the top of the vice body, a sliding block is arranged on the other side of the top of the vice body in a sliding mode, the bottom of the sliding block is in threaded connection with a lead screw, the lead screw is connected with a transmission sleeve, and a pressurizing groove is formed in the end, close to the lead screw, of the transmission sleeve. A pressurizing groove is formed in the end, away from the lead screw, of the transmission sleeve, a limiting gasket is installed in the pressurizing groove, a limiting clamping column is arranged at the input end of the lead screw, a limiting clamping groove is formed in the limiting gasket, the limiting clamping groove is formed in the limiting clamping column in a matched mode, a pressurizing mechanism is arranged in the pressurizing groove, and an adjusting groove is formed in the end, away from the lead screw, of the transmission sleeve. A threaded groove is formed in the adjusting groove, and a pressurizing shaft is installed in the threaded groove in a threaded mode. The lead screw is directly connected with the transmission sleeve, stepless pressure regulation is carried out through threads, and the overall structure is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of vises, in particular to the technical field of double-force vises. Background Art

[0002] A double-force vise is a mechanical tool that uses levers, gears, hydraulics or other means as a pressurizing system to provide a larger clamping force when clamping a workpiece.

[0003] Patent document CN222177354U discloses a mechanical supercharged vise that adjusts the gear position through a ratchet mechanism. This gear adjustment structure is relatively complex, which increases the manufacturer's production cost and also increases the buyer's investment cost.

[0004] Patent document with publication number CN211540906U discloses a boosting device for a double-force vise, including a boosting cylinder and a rotating sleeve, a first screw, a cone head, a roller, a screw connecting shaft and a second screw arranged inside the boosting cylinder. This boosting structure utilizes the reaction force of a disc spring for boosting. The relationship between the reaction force and the deformation of the disc spring is nonlinear, making it difficult to accurately control the strength and uniformity of the boosting, resulting in the vise's loosening and re-clamping movements not being smooth enough. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art based on the first principles, and to propose a practical supercharged vise with a relatively simple structure and strong practicality, which can solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention proposes a practical supercharging vise, comprising a pliers body, a fixed jaw is provided on one side of the top of the pliers body, a slider is slidably provided on the other side of the top of the pliers body, the bottom of the slider is threadedly connected to a screw rod, the screw rod is connected to a transmission sleeve, a supercharging groove is provided at one end of the transmission sleeve close to the screw rod, a limiting gasket is installed in the supercharging groove, a limiting clamping column is provided at the input end of the screw rod, a limiting clamping column is provided on the limiting gasket, the limiting clamping column is matched with the limiting clamping column, a supercharging mechanism is provided in the supercharging groove, an adjusting groove is provided at the end of the transmission sleeve away from the screw rod, a threaded groove is provided in the adjusting groove, a supercharging shaft is threadedly installed in the threaded groove, the supercharging shaft passes through the supercharging groove, a push rod is provided on the supercharging shaft, the push rod is provided with an oblique cone surface which gradually decreases toward the direction of the screw rod, the push rod is matched with the supercharging mechanism, and a driving head is installed at the end of the supercharging shaft away from the push rod; the supercharging shaft and the transmission sleeve are relatively fixed by an elastic mechanism.

[0007] Preferably, the driving head and the limiting clamping column are both hexagonal heads.

[0008] Preferably, a marking groove is provided on the driving head.

[0009] Preferably, the boost shaft and the push rod are an integrated structure or a detachable split structure.

[0010] Preferably, the elastic mechanism includes a compression spring, the outer side of the boost shaft is sleeved with a compression spring, and the compression spring is installed between the adjustment slot and the boost shaft.

[0011] Preferably, the elastic mechanism includes a spring and a steel ball, mounting grooves are provided on both sides of the boost shaft, a spring is provided in the mounting groove, a steel ball (or rolling part) is provided at the end of the spring, and a through groove matching the steel ball or rolling part) is provided on the transmission sleeve.

[0012] Preferably, the boosting mechanism includes a disc spring and a retaining frame, a boosting bevel groove is provided on the retaining frame, the inclination direction of the boosting bevel groove is consistent with the inclined conical surface of the push rod, the boosting bevel groove is opened on the side of the retaining frame close to the push rod, a rolling body is provided in the boosting bevel groove, and the rolling body abuts against the inclined conical surface of the push rod.

[0013] Preferably, a disc spring is provided on the side of the limit post away from the screw rod, a retaining frame is provided on the side of the disc spring away from the screw rod, a first gasket is provided between the disc spring and the limit post, and a second gasket is provided between the retaining frame and the boost groove.

[0014] Preferably, a retaining frame is provided on the side of the position-limiting column away from the screw rod, a disc spring is provided on the side of the retaining frame close to the push rod, and a third gasket is provided between the disc spring and the retaining frame.

[0015] Preferably, a chip removal hole is provided on a side of the pliers body, the chip removal hole is a parallelogram, and the bottom side of the parallelogram is inclined.

[0016] Preferably, the drive head and the boost shaft are formed into an integral structure or a separate structure.

[0017] The beneficial effects of the present invention are as follows: the present invention directly connects the screw rod and the transmission sleeve, and uses the thread for stepless pressure adjustment, thereby simplifying the overall structure; the split push rod is convenient for later maintenance and replacement; the use of a compression spring structure for limiting the position further simplifies the structure of the boost shaft, facilitates product assembly, and can reduce production costs; the present invention designs the position of the disc spring and the boost retainer, and when boosting, the disc spring provides a positive force on the screw rod, which can optimize the operation process of the vise to a certain extent, making the loosening and re-clamping actions smoother.

[0018] The features and advantages of the present invention will be described in detail through embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a structural schematic diagram of the present invention; Figure 2 This is a structural diagram of Example 1; Figure 3 is a partially enlarged schematic diagram of Example 1; Figure 4 This is a structural diagram of Example 2; Figure 5 is a partially enlarged schematic diagram of Example 2; Figure 6 is a structural diagram of Example 3; Figure 7 It is a partially enlarged schematic diagram of Example 3.

[0020] In the figure: 1. Jaw body; 2. Screw rod; 3. Transmission sleeve; 4. Limiting gasket; 6. Booster shaft; 7. Compression spring; 8. Disc spring; 9. Cage; 11. Fixed jaw; 12. Slider; 13. Chip removal hole; 14. Marking groove; 21. Limiting post; 31. Booster groove; 32. Adjusting groove; 33. Threaded groove; 34. Through groove; 41. Limiting slot; 51. Drive head; 52. Mounting slot; 53. Steel ball; 61. Push rod; 81. First gasket; 82. Second gasket; 83. Third gasket; 91. Booster chute; 92. Rolling element. DETAILED DESCRIPTION

[0021] Example 1 See Figures 1 to 3 A practical booster vise comprises a pliers body 1, a fixed jaw 11 is provided on one side of the top of the pliers body 1, a slider 12 is slidably provided on the other side of the top of the pliers body 1, the bottom of the slider 12 is threadedly connected to the screw rod 2, the screw rod 2 is connected to a transmission sleeve 3, a booster groove 31 is provided on one end of the transmission sleeve 3 close to the screw rod 2, a limiting gasket 4 is installed in the booster groove 31, a limiting card column 21 is provided at the input end of the screw rod 2, a limiting card groove 41 is provided on the limiting gasket 4, and the limiting card groove 41 is matched and installed on the limiting card column 21. A boosting mechanism is provided in the pressure groove 31, and an adjusting groove 32 is provided at the end of the transmission sleeve 3 away from the screw rod 2, and a threaded groove 33 is provided in the adjusting groove 32. A boosting shaft 6 is threadedly installed in the threaded groove 33, and the boosting shaft 6 passes through the boosting groove 31. A push rod 61 is provided on the boosting shaft 6, and the push rod 61 is provided with an inclined cone surface which gradually becomes smaller toward the direction of the screw rod 2. The push rod 61 is matched with the boosting mechanism, and a driving head 51 is installed at the end of the boosting shaft 6 away from the push rod 61; the boosting shaft 6 and the transmission sleeve 3 are relatively fixed by an elastic mechanism.

[0022] The driving head 51 and the limiting clamping column 21 are both hexagonal heads.

[0023] The drive head 51 and the boost shaft 6 can be designed as an integral whole or as separate parts.

[0024] The drive head 51 cooperates with a tool to input torque to the boost shaft 6 .

[0025] The boost shaft 6 and the push rod 61 are an integrated structure.

[0026] The elastic mechanism includes a spring and a steel ball. Mounting grooves 52 are provided on both sides of the boost shaft 6. A spring is provided in the mounting groove 52. A steel ball 53 is provided at the end of the spring. A through groove 34 matching the steel ball 53 is provided on the transmission sleeve 3.

[0027] The boost mechanism includes a disc spring 8 and a retaining frame 9. A boosting bevel groove 91 is provided on the retaining frame 9. The inclination direction of the boosting bevel groove 91 is consistent with the inclined conical surface of the push rod 61. The boosting bevel groove 91 is opened on the side of the retaining frame 9 close to the push rod 61. A rolling body 92 is provided in the boosting bevel groove 91, and the rolling body 92 abuts against the inclined conical surface of the push rod 61.

[0028] The rolling body is a roller.

[0029] A disc spring 8 is provided on the side of the limiting clamping column 21 away from the screw rod 2, and a retaining frame 9 is provided on the side of the disc spring 8 away from the screw rod. A first gasket 81 is provided between the disc spring 8 and the limiting clamping column 21, and a second gasket 82 is provided between the retaining frame 9 and the boost groove 31.

[0030] A chip removal hole 13 is provided on the side of the pliers body 1 . The chip removal hole 13 is in the shape of a parallelogram. The bottom side of the parallelogram is tilted to smoothly transition with the inner cavity of the pliers body 1 .

[0031] No-load: Use a tool to twist the drive head 51, which is connected to the inner hexagon of the boost shaft 6 through the outer hexagon. The boost shaft 6 is equipped with a spring and a steel ball 53. In the transmission sleeve 3, the steel ball 53 is squeezed into the through groove 34 of the transmission sleeve 3 by the spring. When the input torque is less than the spring pressure, the boost shaft 6 is relatively fixed to the transmission sleeve 3 through the steel ball 53, and the steel ball 53 clamps the transmission sleeve 3 and rotates together. The transmission sleeve 3 is fixed together with the limit gasket 4 by bolts, and is connected to the outer hexagon of the upper limit column 21 on the screw rod 2 through the inner hexagon of the limit gasket 4, so that the screw rod 2 rotates with the transmission sleeve 3, thereby achieving the purpose of quickly moving the slider 12.

[0032] During the pressurization process of this embodiment, the disc spring is compressed and acts on the screw rod in a positive direction.

[0033] After the fixed jaws 11 and the slider 12 clamp the workpiece, continue to rotate the drive head 51 to increase the torque. When the elastic force provided by the spring is less than the torque, the relative fixation of the steel ball 53 and the transmission sleeve 3 will be released, and the booster shaft 6 and the transmission sleeve 3 will rotate relative to each other, so that the booster shaft 6 continues to move inward through the thread groove 33, and then through the tapered part of the booster shaft 6, the rolling body 92 in the retaining frame 9 is stretched open, and the rolling body 92 moves outward, thereby stretching the retaining frame 9 and the second gasket 82. The retaining frame 9 squeezes the disc spring 8, and the disc spring 8 is deformed, providing a force to the first gasket 81, and then through the first gasket 81 in contact with the screw rod 2, the force is transmitted to the screw rod 2, and the screw rod 2 is finally transmitted to the fixed jaws 11 and the slider 12, thereby obtaining a greater clamping force.

[0034] The pressure regulation relies on the marking groove 14 at the drive head 51, and the position of the marking groove is visually judged to determine the size of the boost.

[0035] The marking grooves are several annular grooves set on the outer surface of the drive head. When pressurized, the drive head will rotate into the threaded grooves. The size of the clamping force can be judged by observing the number of exposed annular grooves.

[0036] Example 2 See Figures 4 and 5 The boost shaft 6 and the push rod 61 are detachable separate structures.

[0037] A retaining frame 9 is provided on the side of the limiting clamping column 21 away from the screw rod 2 , a disc spring 8 is provided on the side of the retaining frame 9 close to the push rod 61 , and a third gasket 83 is provided between the disc spring 8 and the retaining frame 9 .

[0038] The rolling element is a ball.

[0039] Other details are the same as in Example 1.

[0040] The no-load process is the same as in Example 1.

[0041] The positions of the disc spring and the retaining frame in Example 2 are opposite to those in Example 1. During the pressurization process, the disc spring is compressed and provides a reaction force to the screw rod.

[0042] The pressurization working process of Example 2: Boosting: After clamping the workpiece, continue to rotate the drive head 51, and continue to increase the torque after the fixed jaws 11 and the slider 12 clamp the workpiece. When the elastic force of the spring is less than the torque, the steel ball 53 is released from the relative fixation with the transmission sleeve 3, and the booster shaft 6 rotates relative to the transmission sleeve 3. The booster shaft 6 continues to move inward through the thread with the transmission sleeve 3, so that the push rod 61 passes through the tapered part, and the rolling element 92 in the retaining frame 9 is stretched. The rolling element 92 moves outward, and then the retaining frame 9 and the third gasket 83 are stretched. The third gasket 83 squeezes the disc spring 8, and the disc spring 8 is deformed, providing a reaction force to the third gasket 83, and then transmitted to the screw rod 2 through the rolling element 92 and the retaining frame 9. The screw rod 2 is finally transmitted to the fixed jaws 11 and the slider 12, thereby obtaining a greater clamping force.

[0043] Example 3 See Figures 6 to 7 The elastic mechanism includes a compression spring, and a compression spring 7 is sleeved on the outer side of the boost shaft 6. The compression spring 7 is installed between the adjustment groove 32 and the boost shaft 6.

[0044] The rolling element is a ball.

[0045] The difference from Example 1 is that the boost shaft 6 of Example 1 is relatively fixed to the transmission sleeve 3 through radially arranged steel balls 53, while in Example 3, it is relatively fixed to the transmission sleeve 3 through axially arranged compression springs 7.

[0046] Other details are the same as in Example 1.

[0047] When unloaded, use a tool to twist the hexagonal head of the drive head 51. The hexagonal head of the drive head 51 is connected to the inner hexagonal head of the booster shaft 6 through the outer hexagonal head. A compression spring 7 is installed in the transmission sleeve 3 (the threaded structure converts the force of the rotational motion into linear motion. When the linear direction is subject to resistance, it will also cause resistance to the rotational motion. The compression spring 7 applies axial resistance to the booster shaft 6. Therefore, the rotational motion of the booster shaft 6 will also be subject to the resistance of the compression spring 7). When the booster shaft 6 is subjected to sufficiently large resistance from the compression spring 7, the input torque cannot overcome the pressure provided by the compression spring 7. The booster shaft 6 and the transmission sleeve 3 are relatively fixed. The booster shaft 6 will drive the transmission sleeve 3 to rotate together, and then drive the limit washer 4 fixed to the transmission sleeve 3 with bolts, and finally drive the screw to rotate together, so as to achieve the purpose of quickly moving the slider 12. After clamping the workpiece, continue to apply torque. When the elastic force provided by the compression spring cannot overcome the torque on the booster shaft 6, the booster shaft 6 will rotate relative to the transmission sleeve 3, and the booster shaft 6 will continue to move inward through the thread groove, that is, enter the boost state.

[0048] The pressurization process is the same as that in Example 1.

[0049] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A practical pressurized vise, characterized in that: The invention comprises a pliers body (1), wherein a fixed jaw (11) is provided on one side of the top of the pliers body (1), and a slider (12) is slidably provided on the other side of the top of the pliers body (1), wherein the bottom of the slider (12) is threadedly connected to a screw rod (2), wherein the screw rod (2) is connected to a transmission sleeve (3), wherein an end of the transmission sleeve (3) close to the screw rod (2) is provided with a boosting groove (31), wherein a limiting gasket (4) is installed in the boosting groove (31), wherein a limiting clamping column (21) is provided at the input end of the screw rod (2), wherein a limiting clamping groove (41) is provided on the limiting gasket (4), wherein the limiting clamping groove (41) is matched and installed on the limiting clamping column (21), and wherein the boosting groove (31) is provided with a limiting clamping column (21). A boost mechanism is provided in the middle, an adjustment groove (32) is provided at one end of the transmission sleeve (3) away from the screw rod (2), a thread groove (33) is provided in the adjustment groove (32), a boost shaft (6) is threadedly installed in the thread groove (33), the boost shaft (6) passes through the boost groove (31), a push rod (61) is provided on the boost shaft (6), an inclined cone surface that gradually becomes smaller towards the screw rod (2), the push rod (61) is matched with the boost mechanism, and a drive head (51) is installed at one end of the boost shaft (6) away from the push rod (61); the boost shaft (6) and the transmission sleeve (3) are relatively fixed by an elastic mechanism.

2. The practical pressurized vise according to claim 1, characterized in that: The driving head (51) and the limiting clamping column (21) are both hexagonal heads.

3. The practical pressurized vise according to claim 1, characterized in that: The driving head (51) is provided with a marking groove (14).

4. The practical pressurized vise according to claim 1, characterized in that: The boost shaft (6) and the push rod (61) are an integrated structure or a detachable split structure.

5. The practical pressurized vise according to claim 1, characterized in that: The elastic mechanism comprises a compression spring (7), the outer side of the boost shaft (6) is sleeved with the compression spring (7), and the compression spring (7) is installed between the adjustment groove (32) and the boost shaft (6).

6. The practical pressurized vise according to claim 1, characterized in that: The elastic mechanism comprises a spring and a steel ball (53), the boost shaft (6) is provided with mounting grooves (52) on both sides, a spring is provided in the mounting groove (52), a steel ball (53) is provided at the end of the spring, and the transmission sleeve (3) is provided with a through groove (34) matching the steel ball (53).

7. The practical pressurized vise according to claim 1, characterized in that: The boost mechanism comprises a disc spring (8) and a retaining frame (9); a boost inclined groove (91) is provided on the retaining frame (9); the inclination direction of the boost inclined groove (91) is consistent with the inclined conical surface of the push rod (61); the boost inclined groove (91) is opened on a side of the retaining frame (9) close to the push rod (61); a rolling body (92) is provided in the boost inclined groove (91); the rolling body (92) abuts against the inclined conical surface of the push rod (61).

8. The practical pressurized vise according to claim 1, characterized in that: A disc spring (8) is provided on the side of the limit clamping column (21) away from the screw rod (2), a retaining frame (9) is provided on the side of the disc spring (8) away from the screw rod (2), a first gasket (81) is provided between the disc spring (8) and the limit clamping column (21), and a second gasket (82) is provided between the retaining frame (9) and the boosting groove (31).

9. The practical pressurized vise according to claim 1, characterized in that: A retaining frame (9) is provided on the side of the position-limiting clamping column (21) away from the screw rod (2), a disc spring (8) is provided on the side of the retaining frame (9) close to the push rod (61), and a third gasket (83) is provided between the disc spring (8) and the retaining frame (9).

10. The practical pressurized vise according to claim 1, characterized in that: A chip removal hole (13) is provided on the side of the pliers body (1); the chip removal hole (13) is in the shape of a parallelogram, and the bottom side of the parallelogram is arranged inclined.

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