Adjustable clamp and method of adjusting same

Abstract

The application provides an adjustable clamp and an adjusting method thereof, and belongs to the technical field of clamps. The adjustable clamp comprises a base disc, a rotating unit and a translation unit. The base disc is provided with an adjusting cavity. A connecting column is fixedly connected to the center of the adjusting cavity. The axis of the connecting column is parallel to the axis of the base disc. A plurality of reversing ribs are slidably connected to the outer circumferential surface of the connecting column along the circumferential direction of the connecting column. One end of each reversing rib is connected to the base disc and slides along the circumferential direction of the base disc. Each reversing rib is also slidably connected to a supporting rib along the length direction of the reversing rib. The supporting rib is connected to one side of the reversing rib which is away from the opening of the adjusting cavity. The rotating unit is connected to the reversing rib and is used for driving the reversing rib to rotate around the connecting column. The translation unit is connected to the supporting rib and is used for driving the supporting rib to slide. The application solves the technical problem of low applicability of the clamp.

Description

Technical Field

[0001] This invention belongs to the technical field of clamps, specifically relating to an adjustable clamp and its adjustment method. Background Technology

[0002] A fixture is generally a device used in mechanical manufacturing to install and fix parts or workpieces in the correct position and to ensure that the position does not change during the machining process.

[0003] For example, in CNC lathe machining, the fixture is a key link connecting the machine tool and the workpiece, ensuring the stability and accuracy of the workpiece during the machining process.

[0004] As CNC lathes become more widely used, the requirements for fixtures are also increasing. Currently, the fixtures on existing CNC lathes can only fix a limited range of workpiece shapes, resulting in low applicability of CNC lathe fixtures. Summary of the Invention

[0005] This invention provides an adjustable fixture for a CNC lathe and its adjustment method, aiming to solve the technical problem of low applicability of CNC lathe fixtures.

[0006] In a first aspect, embodiments of the present invention provide an adjustable clamp, comprising: A base plate has an adjustment cavity. A connecting column is fixed to the center of the adjustment cavity. The axis of the connecting column is parallel to the axis of the base plate. Multiple reversing ribs are slidably connected to the outer circumferential surface of the connecting column. One end of the reversing rib is connected to the base plate and slides along the circumferential direction of the base plate. A support rib is also slidably connected to the reversing rib along its length. The support rib is connected to the side of the reversing rib facing the opening of the adjustment cavity. A rotating unit, connected to the reversing rib, is used to drive the reversing rib to rotate about the connecting post; and A translation unit, connected to the support rib, is used to drive the support rib to slide.

[0007] In conjunction with the first aspect, in one possible implementation, the inner wall of the base disk has an annular driving cavity; The rotating unit includes: An internal gear ring is fixedly connected to the drive cavity; Multiple gears, each corresponding to one of the reversing ribs, are rotatably connected to the reversing ribs around their own central axis. The gears are also slidably connected to the reversing ribs and slide along the length of the reversing ribs. Each gear has a first working position engaged with the internal gear ring and a second working position separated from the internal gear ring. Multiple first driving components are corresponding one-to-one with multiple gears, and the first driving components are connected to the gears in a transmission connection. When the gear is in the first working position, the reversing rib and the base plate are relatively fixed; when the gear is in the second working position, the reversing rib and the base plate can generate relative displacement.

[0008] In conjunction with the first aspect, in one possible implementation, the reversing rib has a storage cavity communicating with the outside at the end away from the connecting post, a connecting frame is slidably connected in the storage cavity, the connecting frame slides along the length direction of the reversing rib, the connecting frame has a pressure-bearing part, and the gear is rotatably connected to the connecting frame around its own central axis. An adjusting member and a resetting member are sequentially arranged in the storage cavity along the length direction of the reversing rib, and the pressure-bearing part is located between the adjusting member and the resetting member; In this configuration, the adjusting member presses against the pressure-receiving part, causing the gear to be in the first working position; when the adjusting member does not press against the pressure-receiving part, the resetting member causes the gear to be in the second working position.

[0009] In conjunction with the first aspect, in one possible implementation, both the adjusting member and the resetting member are slidably connected within the receiving cavity. The adjusting member and the resetting member slide in a direction parallel to the axis of the base plate, and the sliding directions of the adjusting member and the resetting member are opposite. A first inclined surface and a second inclined surface are respectively provided on the side of the adjusting member and the resetting member that are close to each other, and both the first inclined surface and the second inclined surface abut against the pressure-receiving part.

[0010] In conjunction with the first aspect, in one possible implementation, a second driving member is mounted on the reversing rib, the second driving member is drivenly connected to an adjusting roller, one end of the adjusting roller is hinged to the adjusting member with a first telescopic member, the hinge axis of the first telescopic member and the adjusting member is perpendicular to the sliding direction of the adjusting member, the first telescopic member extends and retracts along the axial direction of the adjusting roller, and the other end of the adjusting roller is hinged to the reset member with a second telescopic member, the hinge axis of the second telescopic member and the reset member is perpendicular to the sliding direction of the reset member, the second telescopic member extends and retracts along the axial direction of the adjusting roller.

[0011] In conjunction with the first aspect, in one possible implementation, the inner wall of the base disk is provided with a connecting cavity in an annular shape, and a first annular electromagnet and a second annular electromagnet are fixedly connected to the inner wall of the connecting cavity on the base disk. The first annular electromagnet and the second annular electromagnet are arranged opposite to each other, and a fixing ring is provided between the first annular electromagnet and the second annular electromagnet. The fixing ring is fixedly connected to the base disk, and the surface of the fixing ring is provided with annularly spaced connecting holes, which are opened along the radial direction of the base disk. The reversing rib is fixedly connected to a connecting piece, and a movable space is formed between the first annular electromagnet and the fixed ring. The end of the connecting piece away from the reversing rib extends into the movable space. The connecting piece is slidably connected to a connecting pin that is adapted to be inserted into the connecting hole. The connecting pin slides radially along the base plate. When the gear is in the first working position, the first annular electromagnet is energized and the second annular electromagnet is de-energized. The first annular electromagnet generates an attractive force, causing the connecting pin to disengage from the connecting hole. When the gear is in the second working position, the first annular electromagnet is de-energized and the second annular electromagnet is energized. The second annular electromagnet generates an attractive force, causing the connecting pin to insert into the connecting hole.

[0012] In conjunction with the first aspect, in one possible implementation, the reversing rib includes a first section detachably connected to the base plate and a second section detachably connected to the connecting column, and also includes an intermediate section rotatably connected between the first section and the second section. The first section rotates about the axis of the connecting column, the intermediate section rotates about its own central axis, and a limit rod is fixed between the first section and the second section. Multiple translation units are provided, and each translation unit corresponds to one of the reversing ribs. Each translation unit includes: A mounting base is sleeved on the outer periphery of the intermediate section and screwed to the intermediate section; the limiting rod slides through the mounting base; and The third driving component is installed on the first or the last segment and is connected to the intermediate segment via a transmission.

[0013] In conjunction with the first aspect, in one possible implementation, a connecting buckle is sleeved on the outer periphery of the connecting post, the connecting buckle rotates about the axis of the connecting post, and the connecting buckle is detachably connected to the tail section and the connecting post respectively.

[0014] In conjunction with the first aspect, in one possible implementation, the support rib is detachably connected to the mounting base.

[0015] Compared with the prior art, the solution shown in this application realizes the adjustment of the radial and circumferential positions of the support ribs through the combined control of the rotation unit and the translation unit, which can adapt to the clamping requirements of complex contour workpieces such as irregular parts and curved surfaces, and improves the applicability of the fixture; at the same time, the position of the support ribs can be adjusted according to the optimal clamping point of the workpiece, thereby improving the stability of workpiece clamping.

[0016] Secondly, embodiments of the present invention also provide a method for adjusting a clamp, comprising the following steps: S10. Determine the number of reversing ribs and the shape of the support ribs according to the shape of the workpiece, and install the reversing ribs and support ribs. S20. Determine the optimal support point for the workpiece clamping by the support ribs based on the shape of the workpiece. S30. Adjust the position of the support rib by rotating and translating the unit according to the optimal support point. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the adjustable clamp according to an embodiment of the present invention; Figure 2 This is a partial cross-sectional view of the gear switching method between the first working position and the second working position used in an embodiment of the present invention. Figure 3 This is a partial sectional view of the connection method between the reversing rib and the connecting column, as well as the translation unit structure used in the embodiments of the present invention. Figure 4 This is a partial cross-sectional view of the connection method between the reversing rib and the base plate used in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 10. Base plate; 101. Adjustment cavity; 102. Connecting post; 1021. Connecting buckle; 10211. Socket; 103. Drive cavity; 104. Connecting cavity; 105. First ring electromagnet; 106. Second ring electromagnet; 107. Fixing ring; 1071. Connecting hole; 20. Rotating unit; 201. Internal gear ring; 202. Gear; 203. First driving component; 30. Translation unit; 301. Mounting base; 302. Third drive component; 40. Reversing rib; 401. Storage cavity; 402. Connecting frame; 4021. Pressure-bearing part; 403. Adjusting component; 404. Resetting component; 405. Second driving component; 406. Adjusting roller; 4061. First telescopic component; 4062. Second telescopic component; 407. Connecting piece; 4071. Connecting pin; 408. First section; 409. Middle section; 410. Tail section; 4101. Insert plate; 411. Limiting rod; 50. Supporting ribs. Detailed Implementation

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] Please refer to the following: Figures 1 to 4 The adjustable clamp of the present invention will be described below. An adjustable clamp includes a base plate 10, a rotating unit 20, and a translation unit 30. The base plate 10 has an adjustment cavity 101. A connecting post 102 is fixedly connected to the center of the adjustment cavity 101. The axis of the connecting post 102 is parallel to the axis of the base plate 10. A plurality of reversing ribs 40 are slidably connected to the outer circumferential surface of the connecting post 102 along its own circumferential direction. The other end of the reversing rib 40 is connected to the base plate 10 and slides along the circumferential direction of the base plate 10. A support rib 50 is also slidably connected to the reversing rib 40 along its own length direction. The support rib 50 is connected to the side of the reversing rib 40 facing the opening of the adjustment cavity 101. The rotating unit 20 is connected to the reversing rib 40 and is used to drive the reversing rib 40 to rotate around the connecting post 102. The translation unit 30 is connected to the reversing rib and is used to drive the support rib 50 to slide.

[0021] The adjustable fixture provided in this embodiment has a rotating unit 20 that drives the reversing rib 40 to rotate around the axis of the connecting column 102. Since the two ends of the reversing rib 40 slide circumferentially on the connecting column 102 and the base plate 10 respectively, the rotational motion will be converted into a change in the circumferential position of the support rib 50. The translation unit 30 drives the support rib 50 to slide along the length direction of the reversing rib 40, thereby completing the change in the radial position of the support rib 50.

[0022] Compared with the prior art, the combined control of the rotation unit 20 and the translation unit 30 enables the radial and circumferential position adjustment of the support rib 50, which can adapt to the clamping requirements of complex contour workpieces such as irregular-shaped parts and curved surfaces, thus improving the applicability of the fixture; at the same time, the position of the support rib 50 can be adjusted according to the optimal clamping point of the workpiece, thereby improving the stability of workpiece clamping.

[0023] In some embodiments, see Figure 1 and Figure 2The inner wall of the base plate 10 is provided with an annular drive cavity 103; the rotating unit 20 includes an internal gear ring 201, multiple gears 202 and multiple first drive members 203. The internal gear ring 201 is fixed in the drive cavity 103; the multiple gears 202 correspond one-to-one with multiple reversing ribs 40. The gears 202 are rotatably connected to the reversing ribs 40 around their own central axis. The gears 202 are also slidably connected to the reversing ribs 40. The gears 202 slide along the length direction of the reversing ribs 40. The gears 202 have a first working position that meshes with the internal gear ring 201 and a second working position that is separated from the internal gear ring 201; the multiple first drive members 203 correspond one-to-one with the multiple gears 202 and are drively connected to the gears 202.

[0024] When gear 202 is in the first working position, the reversing rib 40 and the base plate 10 are relatively fixed; when gear 202 is in the second working position, the reversing rib 40 and the base plate 10 can generate relative displacement.

[0025] It should be noted that the first driving component 203 is a motor.

[0026] Specifically, the reversing rib 40 has a storage cavity 401 communicating with the outside at the end away from the connecting column 102. A connecting frame 402 is slidably connected in the storage cavity 401. The connecting frame 402 has a pressure-bearing part 4021. The connecting frame 402 slides along the length direction of the reversing rib 40. The gear 202 is rotatably connected to the connecting frame 402 around its own central axis. An adjusting member 403 and a resetting member 404 are arranged sequentially in the storage cavity 401 along the length direction of the reversing rib 40. The pressure-bearing part 4021 is located between the adjusting member 403 and the resetting member 404.

[0027] In this configuration, the adjusting member 403 presses the pressure receiving part 4021, causing the gear 202 to be in the first working position; when the adjusting member 403 does not press the pressure receiving part 4021, the resetting member 404 causes the gear 202 to be in the second working position.

[0028] The adjusting member 403 presses the pressure receiving part 4021, causing the connecting frame 402 to move outward of the receiving cavity 401 until the gear 202 is in the first working position. At this time, the reversing rib 40 and the base plate 10 are in a state where they can slide relative to each other. Then, the first driving member 203 starts to drive the gear 202 to rotate. During the rotation of the gear 202, it moves along the internal gear ring 201, causing the reversing rib 40 to rotate around the connecting column 102, thereby changing the position of the support rib 50 in the axial direction.

[0029] After the position of the support rib 50 in the axial direction is determined, the adjusting member 403 does not squeeze the pressure part 4021, and the resetting member 404 causes the connecting frame 402 to move into the receiving cavity 401 until the gear 202 is in the second working position. Then, the reversing rib 40 and the base plate 10 are fixed, so that the position of the reversing rib 40 is fixed, thereby fixing the position of the support rib 50 in the axial direction.

[0030] When the reversing rib 40 needs to be rotated, the movable connecting frame 402 causes the gear 202 to mesh with the internal gear ring 201, thereby providing power for the rotation of the reversing rib 40; after the reversing rib 40 is moved to the required position, the movable connecting frame 402 causes the gear 202 to disengage from the internal gear ring 201, thereby preventing the output shaft of the first drive member 203 from being continuously damaged by load during the process of the support rib 50 clamping the workpiece, and extending the service life of the first drive member 203.

[0031] In some embodiments, see Figure 2 The adjusting member 403 and the resetting member 404 are both slidably connected in the receiving cavity 401. The adjusting member 403 and the resetting member 404 slide in a direction parallel to the axis of the base plate 10. The sliding directions of the adjusting member 403 and the resetting member 404 are opposite. The adjusting member 403 and the resetting member 404 are respectively provided with a first inclined surface and a second inclined surface on the side that are close to each other. The first inclined surface and the second inclined surface abut against the pressure part 4021.

[0032] A second driving member 405 is installed inside the storage cavity 401. The second driving member 405 is connected to an adjusting roller 406. One end of the adjusting roller 406 is hinged to an adjusting member 403 with a first telescopic member 4061. The hinge axis of the first telescopic member 4061 and the adjusting member 403 is perpendicular to the sliding direction of the adjusting member 403. The first telescopic member 4061 extends and retracts along the axial direction of the adjusting roller 406. The other end of the adjusting roller 406 is hinged to a second telescopic member 4062 with a reset member 404. The hinge axis of the second telescopic member 4062 and the reset member 404 is perpendicular to the sliding direction of the reset member 404. The second telescopic member 4062 extends and retracts along the axial direction of the adjusting roller 406.

[0033] It should be noted that the second driving component 405 is a motor, and the first telescopic component 4061 and the second telescopic component 4062 are both telescopic rods with a multi-stage telescopic structure.

[0034] The second driving component 405 starts and drives the adjusting roller 406 to rotate. During the rotation of the adjusting roller 406, one end of the adjusting roller 406 moves away from the connecting frame 402, and the other end of the adjusting roller 406 moves closer to the connecting frame 402, so that the movements of the reset component 404 and the adjusting component 403 are always opposite.

[0035] When the adjusting roller 406 drives the adjusting member 403 to move closer to the pressure part 4021, the adjusting member 403 presses the connecting frame 402 to move outward from the receiving cavity 401, so that the gear 202 is in the first working position and the first telescopic member 4061 is in the retracted state; at the same time, the adjusting roller 406 drives the reset member 404 to move away from the connecting frame 402, and the second telescopic member 4062 is in the stretched state.

[0036] When the adjusting roller 406 drives the reset member 404 to move closer to the pressure part 4021, the reset member 404 presses the connecting frame 402 to move towards the inside of the receiving cavity 401, so that the gear 202 is in the second working position and the second telescopic member 4062 is in the retracted state; at the same time, the adjusting roller 406 drives the adjusting member 403 to move away from the connecting frame 402, and the first telescopic member 4061 is in the stretched state.

[0037] In some embodiments, see Figure 1 and Figure 4 The inner wall of the base plate 10 is provided with a connecting cavity 104. A first annular electromagnet 105 and a second annular electromagnet 106 are fixedly connected to the inner wall of the connecting cavity 104. The first annular electromagnet 105 and the second annular electromagnet 106 are arranged opposite to each other. A fixing ring 107 is provided between the first annular electromagnet 105 and the second annular electromagnet 106. The fixing ring 107 is fixedly connected to the base plate 10. The surface of the fixing ring 107 is provided with annularly spaced connecting holes 1071. The connecting holes 1071 are opened along the radial direction of the base plate 10.

[0038] A connecting piece 407 is fixedly connected to the reversing rib 40. An active space is formed between the first annular electromagnet 105 and the fixed ring 107. The end of the connecting piece 407 away from the reversing rib 40 extends into the active space. The connecting piece 407 is slidably connected to a connecting pin 4071 that is compatible with the connecting hole 1071. The connecting pin 4071 slides radially along the base plate 10.

[0039] When gear 202 is in the first working position, the first annular electromagnet 105 is energized and the second annular electromagnet 106 is de-energized. The first annular electromagnet 105 generates attraction, causing the connecting pin 4071 to disengage from the connecting hole 1071. When gear 202 is in the second working position, the first annular electromagnet 105 is de-energized and the second annular electromagnet 106 is energized. The second annular electromagnet 106 generates attraction, causing the connecting pin 4071 to insert into the connecting hole 1071.

[0040] It should be noted that both the first ring electromagnet 105 and the second ring electromagnet 106 are electromagnets, which will not be described in detail in this application. The connecting pin 4071 is made of ferromagnetic material.

[0041] When the position of the reversing rib 40 needs to be moved, first energize the first annular electromagnet 105 to pull the connecting pin 4071 out of the connecting hole 1071; after the position of the reversing rib 40 is determined, de-energize the first annular electromagnet 105 and then energize the second annular electromagnet 106 so that the connecting pin 4071 is firmly fixed in the connecting hole 1071.

[0042] During the process of the support rib 50 clamping the workpiece, the connecting pin 4071 and the connecting hole 1071 are connected and matched to fix the reversing rib 40 and the base plate 10 relatively, thereby ensuring the stability of the workpiece clamping process.

[0043] In some embodiments, see Figure 2 and Figure 3 The reversing rib 40 includes a first section 408 detachably connected to the base plate 10 and a tail section 410 detachably connected to the connecting column 102. It also includes an intermediate section 409 rotatably connected between the first section 408 and the tail section 410. The first section 408 rotates about the axis of the connecting column 102, and the intermediate section 409 rotates about its own central axis. A limit rod 411 is fixed between the first section 408 and the tail section 410.

[0044] Multiple translation units 30 are provided, and each translation unit 30 corresponds to a reversing rib 40. Each translation unit 30 includes a mounting base 301 and a third driving member 302. The mounting base 301 is sleeved on the outer periphery of the intermediate section 409 and screwed to the intermediate section 409. The limiting rod 411 slides through the mounting base 301. The third driving member 302 is installed on the first section 408 or the last section 410 and is connected to the intermediate section 409 in a transmission manner.

[0045] It should be noted that the third driving component 302 is a motor. Figure 3 The structure in the middle is that the third drive unit 302 is installed in the tail section 410.

[0046] The third driving component 302 starts and drives the middle section 409 to rotate. The rotation of the middle section 409 causes the mounting base 301 to slide along the limit rod 411, thereby adjusting the position of the support rib 50 in the radial direction.

[0047] In some embodiments, see Figure 2 A connecting buckle 1021 is sleeved on the outer periphery of the connecting post 102. The connecting buckle 1021 rotates about the axis of the connecting post 102. The connecting buckle 1021 is detachably connected to the tail section 410 and the connecting post 102.

[0048] Specifically, the tail section 410 is fixedly connected to a plug plate 4101, and the end of the connecting buckle 1021 away from the connecting post 102 is provided with a plug 10211 that is compatible with the plug plate 4101. The plug plate 4101 and the connecting buckle 1021 are fixed by bolts.

[0049] The tail section 410 is fixed to the connecting column 102 by a quick-release and quick-installation method, which can improve the disassembly and assembly efficiency of the reversing rib 40, thereby shortening the time required to clamp the workpiece.

[0050] In some embodiments, the support rib 50 is detachably connected to the mounting base 301, specifically, the support rib 50 is screwed to the mounting base 301.

[0051] It should be noted that the support rib 50 can be in various shapes such as a cylinder, a rectangular plate, or an arc plate. The support rib 50 in the figure is cylindrical.

[0052] Different shapes of support ribs 50 can be replaced according to the characteristics of the workpiece, making it easier for the support ribs 50 to clamp the workpiece. The support ribs 50 and the mounting base 301 adopt a quick-release and quick-installation method, which improves the disassembly and assembly efficiency of the support ribs 50 and further shortens the time required to clamp the workpiece.

[0053] Based on the same inventive concept, this application also provides a method for adjusting a clamp, the steps of which are as follows: S10. Determine the number of reversing ribs 40 and the shape of the support ribs 50 according to the shape of the workpiece, and install the reversing ribs 40 and the support ribs 50. S20. Determine the optimal support point for the workpiece clamping by the support rib 50 according to the shape of the workpiece. S30. Adjust the position of the support rib 50 by rotating the unit 20 and translating the unit 30 according to the optimal support point.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable clamp, characterized in that, include: A base plate has an adjustment cavity. A connecting column is fixed to the center of the adjustment cavity. The axis of the connecting column is parallel to the axis of the base plate. Multiple reversing ribs are slidably connected to the outer circumferential surface of the connecting column. One end of the reversing rib is connected to the base plate and slides along the circumferential direction of the base plate. A support rib is also slidably connected to the reversing rib along its length. The support rib is connected to the side of the reversing rib facing the opening of the adjustment cavity. A rotating unit, connected to the reversing rib, is used to drive the reversing rib to rotate around the connecting column; as well as A translation unit, connected to the support rib, is used to drive the support rib to slide; The inner wall of the base disk has an annular driving cavity; The rotating unit includes: An internal gear ring is fixedly connected to the drive cavity; Multiple gears, each corresponding to one of the reversing ribs, are rotatably connected to the reversing ribs around their own central axis. The gears are also slidably connected to the reversing ribs and slide along the length of the reversing ribs. Each gear has a first working position engaged with the internal gear ring and a second working position separated from the internal gear ring. Multiple first driving components are corresponding one-to-one with multiple gears, and the first driving components are connected to the gears in a transmission connection. When the gear is in the first working position, the reversing rib and the base plate are relatively fixed; when the gear is in the second working position, the reversing rib and the base plate can be relatively displaced. The reversing rib has a storage cavity communicating with the outside at one end away from the connecting column. A connecting frame is slidably connected in the storage cavity. The connecting frame slides along the length of the reversing rib. The connecting frame has a pressure-bearing part. The gear is rotatably connected to the connecting frame around its own central axis. An adjusting member and a resetting member are sequentially arranged in the storage cavity along the length direction of the reversing rib, and the pressure-bearing part is located between the adjusting member and the resetting member; Wherein, the adjusting member presses the pressure-receiving part, causing the gear to be in the first working position; when the adjusting member does not press the pressure-receiving part, the resetting member causes the gear to be in the second working position; The adjusting member and the resetting member are both slidably connected in the receiving cavity. The adjusting member and the resetting member slide in a direction parallel to the axis of the base plate, and the sliding directions of the adjusting member and the resetting member are opposite. The adjusting member and the resetting member are respectively provided with a first inclined surface and a second inclined surface on the side that are close to each other. The first inclined surface and the second inclined surface abut against the pressure part. A second driving member is mounted on the reversing rib. The second driving member is connected to an adjusting roller. One end of the adjusting roller is hinged to the adjusting member with a first telescopic member. The hinge axis of the first telescopic member and the adjusting member is perpendicular to the sliding direction of the adjusting member. The first telescopic member extends and retracts along the axial direction of the adjusting roller. The other end of the adjusting roller is hinged to the reset member with a second telescopic member. The hinge axis of the second telescopic member and the reset member is perpendicular to the sliding direction of the reset member. The second telescopic member extends and retracts along the axial direction of the adjusting roller.

2. The adjustable clamp of claim 1, wherein, The base plate has a connecting cavity circumferentially formed on its inner wall. A first annular electromagnet and a second annular electromagnet are fixedly connected to the inner wall of the connecting cavity. The first annular electromagnet and the second annular electromagnet are arranged opposite to each other. A fixing ring is provided between the first annular electromagnet and the second annular electromagnet. The fixing ring is fixedly connected to the base plate. The surface of the fixing ring has connecting holes that are spaced apart and are formed circumferentially along the radial direction of the base plate. The reversing rib is fixedly connected to a connecting piece, and a movable space is formed between the first annular electromagnet and the fixed ring. The end of the connecting piece away from the reversing rib extends into the movable space. The connecting piece is slidably connected to a connecting pin that is adapted to be inserted into the connecting hole. The connecting pin slides radially along the base plate. When the gear is in the first working position, the first annular electromagnet is energized and the second annular electromagnet is de-energized. The first annular electromagnet generates an attractive force, causing the connecting pin to disengage from the connecting hole. When the gear is in the second working position, the first annular electromagnet is de-energized and the second annular electromagnet is energized. The second annular electromagnet generates an attractive force, causing the connecting pin to insert into the connecting hole.

3. The adjustable clamp of claim 1, wherein, The reversing rib includes a first section detachably connected to the base plate and a tail section detachably connected to the connecting column, and also includes an intermediate section rotatably connected between the first section and the tail section. The first section rotates about the axis of the connecting column, and the intermediate section rotates about its own central axis. A limit rod is fixed between the first section and the tail section. Multiple translation units are provided, and each translation unit corresponds to one of the reversing ribs. Each translation unit includes: A mounting base is sleeved on the outer periphery of the intermediate section and screwed to the intermediate section; the limiting rod slides through the mounting base; and The third driving component is installed on the first or the last segment and is connected to the intermediate segment via a transmission.

4. The adjustable clamp of claim 3, wherein, A connecting buckle is fitted around the outer periphery of the connecting post. The connecting buckle rotates about the axis of the connecting post. The connecting buckle is detachably connected to the tail section and the connecting post.

5. The adjustable clamp of claim 3, wherein, The support rib is detachably connected to the mounting base.

6. A method of adjusting a clamp comprising the adjustable clamp of any one of claims 1-5, wherein, The steps are as follows: S10. Determine the number of reversing ribs and the shape of the support ribs according to the shape of the workpiece, and install the reversing ribs and support ribs. S20. Determine the optimal support point for the workpiece clamping by the support ribs based on the shape of the workpiece. S30, according to the best support point, adjusting the position of the support rib through the rotating unit and the translating unit.

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