Clamping device

Abstract

A clamping device comprises: a base; the fixed clamping piece is connected to the base and is provided with a bearing surface and a limiting bulge; the movable clamping mechanism comprises a movable seat, a connecting assembly, a positioning assembly and a movable clamping assembly, the movable seat is connected to the base, the connecting assembly is arranged on the movable seat and connected with the base, the positioning assembly is movably connected with the movable seat, the movable clamping assembly comprises an abutting plate, a first adjusting part, an extruding part and a movable clamping part, the abutting plate is arranged on the positioning assembly, and the first adjusting part is arranged on the first adjusting part; the first adjusting part is connected with the positioning assembly, the extruding part is connected to the positioning assembly, the movable clamping part is connected to the side, facing the fixed clamping part, of the extruding part, the first adjusting part is used for pushing the pushing plate to move towards the positioning assembly so as to push the extruding part to move towards the movable base, and the extruding part pushes the movable clamping part to move towards the limiting protrusion. And therefore, the movable clamping piece is matched with the fixed clamping piece to clamp the workpiece. The clamping device can stably support and clamp a workpiece, and is good in clamping and positioning effect and high in positioning precision.

Description

Technical Field

[0001] The present application relates to the technical field of workpiece positioning, and in particular to a clamping device. Background Art

[0002] During the process of cutting and drilling the workpiece, it is necessary to use a fixture to fix the workpiece before processing. Currently, the commonly used fixtures include vises, cylinder clamping devices, etc. However, for some large workpieces, the cylinder clamping method is prone to unstable clamping during the processing process, resulting in flying materials, and the vise clamping method makes it difficult to determine the position accuracy of the workpiece processing surface, resulting in low processing accuracy and unable to meet the processing requirements. Utility Model Content

[0003] In view of the above, it is necessary to propose a clamping device that can stably support and clamp the workpiece, enhance the clamping positioning effect and improve the positioning accuracy.

[0004] The embodiment of the present application provides a clamping device, comprising: a base; a fixed clamping piece, connected to the base and extending along a first direction, a side of the fixed clamping piece away from the base is provided with a bearing surface for supporting a workpiece and a limiting protrusion for abutting against the workpiece, the limiting protrusion being convexly arranged on the bearing surface; a movable clamping mechanism, comprising a movable seat, a connecting component, a positioning component and a movable clamping component, the movable seat being slidably arranged on the base along the first direction, the movable seat extending along a second direction perpendicular to the first direction and abutting against the fixed clamping piece, the connecting component being arranged on the movable seat and connected to the base for connecting the movable seat and the base, the positioning component being movably connected to the movable seat and can be clamped on the movable seat The movable clamping member comprises a push plate, a first adjusting member, an extrusion member and a movable clamping member, the push plate is arranged on a side of the positioning assembly away from the movable seat, the first adjusting member is inserted into the push plate and connected to the positioning assembly, the extrusion member is slidably connected to a side of the positioning assembly toward the fixed clamping member, the movable clamping member is slidably connected to a side of the extrusion member toward the fixed clamping member and is connected to the inclined surface of the extrusion member, the first adjusting member is used to push the push plate to move toward the positioning assembly, so that the push plate pushes the extrusion member to move toward the movable seat, and the extrusion member pushes the movable clamping member to move toward the limiting protrusion, thereby causing the movable clamping member to cooperate with the fixed clamping member to clamp the workpiece.

[0005] The above-mentioned clamping device can support the fixed clamping member and the movable clamping mechanism through the base to provide stable support. The bearing surface on the fixed clamping member can stably support the workpiece and improve the positioning accuracy. The movable seat in the movable clamping mechanism is connected to the base through a connecting assembly, which is convenient for adjusting the position of the movable seat on the base, and then convenient for adjusting the position of the clamped workpiece, thereby improving the flexibility of use. The movable clamping assembly can be driven to move along the movable seat through the positioning assembly, and can clamp workpieces of various sizes, thereby improving applicability. The positioning assembly can be clamped on the movable seat to improve the stability of clamping, and the push plate can be driven through the first adjusting member to push the extrusion member toward the movable seat, thereby causing the extrusion member to push the movable clamping member toward the limiting protrusion of the fixed clamping member, thereby causing the movable clamping member to cooperate with the limiting protrusion of the fixed clamping member to clamp the workpiece, thereby improving the clamping and positioning effect.

[0006] In some embodiments, a positioning portion is provided on a side of the movable seat away from the base, and a plurality of positioning grooves arranged at intervals along the second direction are provided on the side of the positioning portion in the first direction; the positioning assembly includes: a support member, slidably connected to the positioning portion, the first adjusting member is connected to the support member, the extrusion member is slidably connected to the side of the support member facing the fixed clamping member, and a plurality of first through holes are provided on the side of the support member in the first direction; a storage box, connected to the side of the support member in the first direction; a traction plate, movably arranged in the storage box, the traction plate is provided with a plurality of second through holes, and the plurality of second through holes correspond to the plurality of first through holes one by one; a handle, movably inserted into the storage box and connected to the traction plate The plate is fixedly connected; a plurality of positioning pins are movably arranged in the accommodating box, a plurality of the positioning pins correspond to the plurality of the second through holes one by one, the positioning pins are inserted into the corresponding second through holes and the corresponding first through holes, and the positioning pins pass through the first through holes and are then inserted into the positioning grooves to limit the support member in the second direction, and a stopper is provided at one end of the positioning pin inserted in the second through hole, and the stopper abuts against a side of the traction plate away from the support member; and a plurality of elastic members are arranged in the accommodating box, a plurality of the elastic members correspond to the plurality of the positioning pins one by one, the elastic members are sleeved on the corresponding positioning pins, and the two ends of the elastic members abut against the inner wall of the accommodating box and the stopper respectively.

[0007] In some embodiments, a plurality of third through holes are opened on a side of the storage box away from the support member, and the plurality of third through holes correspond one-to-one to the plurality of first through holes. One end of the positioning pin away from the corresponding first through hole is slidably inserted into the corresponding third through hole so that the storage box supports the positioning pin.

[0008] In some embodiments, the plurality of positioning grooves on the positioning portion are equidistantly distributed in the second direction, and the plurality of positioning pins are non-equidistantly distributed in the second direction, so that when the support member is positioned on the positioning portion, at least one positioning pin corresponds to the positioning groove.

[0009] In some embodiments, the plurality of positioning grooves on the positioning portion are arranged in two rows along the second direction in an alternating staggered manner, the distance between two adjacent positioning grooves in each row is 10 unit lengths, and the distance between two corresponding adjacent positioning grooves in the two rows in the second direction is 5 unit lengths; the number of the positioning pins is 10, and they are arranged in two rows in an alternating staggered manner along the second direction, there are 5 positioning pins in each row, the distance between two adjacent positioning pins in the first row is 10 unit lengths, 9 unit lengths, 8 unit lengths, and 7 unit lengths, respectively, the distance between two adjacent positioning pins in the second row is 9 unit lengths, 9 unit lengths, 8 unit lengths, and 7 unit lengths, respectively, and the distance between the first positioning pin in the second row and the first positioning pin in the first row in the second direction is 5 unit lengths, and the distance between the second positioning pin in the second row and the first positioning pin in the first row in the second direction is 4 unit lengths.

[0010] In some embodiments, the extrusion member is provided with a first dovetail protrusion and a second dovetail protrusion on both sides in the second direction, the support member is provided with a first dovetail groove corresponding to the first dovetail protrusion on one side abutting the extrusion member, and the movable clamping member is provided with a second dovetail groove corresponding to the second dovetail protrusion on one side abutting the extrusion member, the first dovetail protrusion is slidably set in the first dovetail groove, and the second dovetail protrusion is slidably set in the second dovetail groove, so that the support member can pull the movable clamping member to move synchronously when moving along the positioning portion.

[0011] In some embodiments, the base is provided with a plurality of T-shaped slots extending along the first direction; the movable seat further comprises a connecting portion and a supporting portion, the connecting portion abuts against the base, the supporting portion is connected to the connecting portion, and the positioning portion is connected to the supporting portion; the connecting assembly comprises: a balance bar, which is movably inserted into the supporting portion along the first direction, and both ends of the balance bar extend out of the supporting portion; a plurality of holding members, which are respectively connected to both ends of the balance bar, and each of the holding members is provided with two holding portions along the second direction; a plurality of seesaws, one end of each of the seesaws abuts against the connecting portion, and the other end abuts against on the pressing portion; a plurality of locking members corresponding to the plurality of seesaws one by one, each of the locking members being connected to the corresponding seesaw and abutting against one end of the connecting portion, and each of the locking members also passing through the connecting portion and inserted in the T-slot; and a second adjusting member movably inserted between the positioning portion and the supporting portion, the second adjusting member abutting against the balance bar, the second adjusting member being used to push the balance bar to move toward the connecting portion, so as to drive the pressing member to move toward the connecting portion, and then the pressing portion presses the seesaw to rotate, so that the seesaw drives the locking member to move away from the base until the movable seat is locked.

[0012] In some embodiments, the connecting assembly also includes a sleeve, which is movably disposed on the supporting portion and sleeved on the balance pole, the balance pole is provided with a spherical portion adapted to the sleeve, the balance pole is rotatably connected to the sleeve, and the second adjusting member abuts against the sleeve to push the sleeve and the balance pole to move toward the connecting portion.

[0013] In some embodiments, connecting protrusions are provided at both ends of the balance pole, the connecting protrusions are arranged along the first direction, and the connecting protrusions are arc-shaped structures. The holding piece is provided with a connecting groove that is adapted to the connecting protrusions, and the holding piece is rotatably connected to the balance pole through the cooperation of the connecting groove and the connecting protrusion.

[0014] In some embodiments, a limiting hole is provided at one end of each of the seesaw plates that abuts against the connecting portion, and a plurality of limiting pins are provided on the connecting portion. Each limiting pin is correspondingly inserted into the limiting hole of a seesaw plate to limit the seesaw plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of the clamping device provided in an embodiment of the present application.

[0016] Figure 2 for Figure 1 A schematic structural diagram of the movable clamping mechanism in the clamping device shown.

[0017] Figure 3for Figure 2 A schematic structural diagram of a positioning assembly and a movable clamping assembly in a movable clamping mechanism is shown.

[0018] Figure 4 A schematic diagram of the position structure of the positioning groove and the positioning pin in the clamping device provided in an embodiment of the present application.

[0019] Figure 5 for Figure 3 A schematic structural diagram of the connecting components in the movable clamping mechanism shown.

[0020] Figure 6 for Figure 2 The schematic cross-sectional view of the movable clamping mechanism shown is along the VI-VI direction.

[0021] Main component symbols

[0022] Clamping device 100

[0023] Base 10

[0024] T-slot 11

[0025] Fixed clamp 20

[0026] Bearing surface 21

[0027] Limiting protrusion 22

[0028] Active clamping mechanism 30

[0029] Active seat 31

[0030] Positioning unit 311

[0031] Positioning slot 3111

[0032] Connection part 312

[0033] Limit pin 3121

[0034] Supporting part 313

[0035] Connecting components 32

[0036] Balance bar 321

[0037] Spherical part 3211

[0038] Connecting protrusion 3212

[0039] Pressing piece 322

[0040] Pressing part 3221

[0041] Connection slot 3222

[0042] Seesaw 323

[0043] Limit hole 3231

[0044] Locking piece 324

[0045] Second adjustment member 325

[0046] Bushing 326

[0047] Positioning component 33

[0048] Support 331

[0049] First through hole 3311

[0050] First dovetail groove 3312

[0051] Storage box 332

[0052] The third through hole 3321

[0053] Traction board 333

[0054] The second through hole 3331

[0055] Handle 334

[0056] Positioning pin 335

[0057] Stopper 3351

[0058] Elastic member 336

[0059] Active clamping assembly 34

[0060] Push plate 341

[0061] First adjustment member 342

[0062] Extrusion 343

[0063] First dovetail protrusion 3431

[0064] Second dovetail protrusion 3432

[0065] Movable clamp 344

[0066] Second dovetail groove 3441

[0067] Workpiece 200 DETAILED DESCRIPTION

[0068] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0069] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0070] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication, it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0071] The following is a further description of the embodiments of the present application in conjunction with the accompanying drawings. Figure 1 , the embodiment of the present application defines the X-axis as the first direction and the Y-axis as the second direction.

[0072] See also Figure 1 The embodiment of the present application provides a clamping device 100 for clamping a workpiece 200 , which may be a block-shaped or plate-shaped structural member. The clamping device 100 includes a base 10 , a fixed clamping member 20 , and a movable clamping mechanism 30 .

[0073] Specifically, the base 10 may be a plate-like structure to provide a stable support. In one embodiment, the base 10 may be installed in a processing machine (not shown) so that the processing machine processes the workpiece 200 after clamping the workpiece 200 .

[0074] See also Figure 1 , Figure 2 and Figure 3The fixed clamping member 20 is connected to the base 10 and extends along the X-axis direction. The side of the fixed clamping member 20 away from the base 10 is provided with a bearing surface 21 for supporting the workpiece 200 and a limiting protrusion 22 for abutting against the workpiece 200. The limiting protrusion 22 is convexly arranged on the bearing surface 21. It can be understood that the bearing surface 21 is parallel to the XY plane to provide support for the workpiece 200. The limiting protrusion 22 can extend along the X-axis direction to facilitate the movable clamping mechanism 30 to clamp the workpiece 200. In one embodiment, the width of the side of the fixed clamping member 20 close to the base 10 in the Y-axis direction is greater than the width of the side away from the base 10 in the Y-axis direction, so as to improve the structural strength of the fixed clamping member 20, thereby improving the stability when clamping the workpiece 200.

[0075] The movable clamping mechanism 30 includes a movable seat 31, a connecting component 32, a positioning component 33 and a movable clamping component 34. The movable seat 31 is slidably arranged on the base 10 along the X-axis direction. The movable seat 31 extends along the Y-axis direction and abuts against the fixed clamping member 20. The connecting component 32 is arranged on the movable seat 31 and connected to the base 10, and is used to connect the movable seat 31 and the base 10. The positioning component 33 is movably connected to the movable seat 31 and can be clamped on the movable seat 31. The movable clamping component 34 includes a push plate 341, a first adjusting member 342, an extruding member 343 and a movable clamping member 344. The push plate 341 is arranged at the position where the positioning member 33 is away from the movable seat 31. On one side, the first adjusting member 342 is inserted into the push plate 341 and connected to the positioning assembly 33, the extrusion member 343 is slidably connected to the side of the positioning assembly 33 toward the fixed clamping member 20, the movable clamping member 344 is slidably connected to the side of the extrusion member 343 toward the fixed clamping member 20 and is connected to the inclined surface of the extrusion member 343, the first adjusting member 342 is used to push the push plate 341 to move toward the positioning assembly 33, so that the push plate 341 pushes the extrusion member 343 to move toward the movable seat 31, and the extrusion member 343 pushes the movable clamping member 344 to move toward the limiting protrusion 22, so that the movable clamping member 344 cooperates with the fixed clamping member 20 to clamp the workpiece 200.

[0076] The cross section of the movable seat 31 on the XZ plane can be an I-shape to improve the stability of the connection between the movable seat 31 and the base 10 and facilitate the sliding connection between the positioning assembly 33 and the movable clamping member 344 and the movable seat 31 .

[0077] The push plate 341 may be a plate-shaped structure, and a protrusion structure may be provided on one side of the push plate 341 that abuts against the positioning assembly 33, so that when the first adjustment member 342 drives the push plate 341 to move toward the positioning assembly 33, the protrusion structure on the push plate 341 pushes the extrusion member 343 to move.

[0078] The first adjusting member 342 may be a flat head bolt or the like, and the first adjusting member 342 and the positioning assembly 33 may be connected in a threaded manner, so that the first adjusting member 342 may tighten or loosen the push plate 341 after being rotated.

[0079] The cross-section of the extrusion member 343 in the YZ plane can be a trapezoid, and the width of the end of the extrusion member 343 close to the movable seat 31 in the Y-axis direction is smaller than the width of the end away from the movable seat 31 in the Y-axis direction, so that when the extrusion member 343 moves close to the movable seat 31, it can push the movable clamping member 344 to move close to the workpiece 200 along the Y-axis direction.

[0080] The clamping device 100 provided in the embodiment of the present application can support the fixed clamping member 20 and the movable clamping mechanism 30 through the base 10 to provide stable support. The bearing surface 21 on the fixed clamping member 20 can stably support the workpiece 200 and improve the positioning accuracy. The movable seat 31 in the movable clamping mechanism 30 is connected to the base 10 through the connecting component 32, which is convenient for adjusting the position of the movable seat 31 on the base 10, and then convenient for adjusting the position of the clamped workpiece 200, thereby improving the flexibility of use. The movable clamping component 34 can be driven to move along the movable seat 31 through the positioning component 33, and can clamp workpieces 200 of various sizes, thereby improving applicability. The positioning assembly 33 can be clamped on the movable seat 31 to improve the stability of clamping. The first adjusting member 342 can drive the push plate 341 to push the extrusion member 343 toward the movable seat 31, and then the extrusion member 343 pushes the movable clamping member 344 to move toward the limiting protrusion 22 of the fixed clamping member 20, so that the movable clamping member 344 cooperates with the limiting protrusion 22 of the fixed clamping member 20 to clamp the workpiece 200, thereby improving the clamping and positioning effect.

[0081] In some embodiments, see Figure 1 and Figure 2 , a positioning portion 311 is provided on the side of the movable seat 31 away from the base 10, and a plurality of positioning grooves 3111 arranged at intervals along the Y-axis direction are provided on the side of the positioning portion 311 in the X-axis direction. The positioning grooves 3111 can be provided with 20, 30, 40, etc., and the number of positioning grooves 3111 can be set according to the length of the positioning portion 311, and can be distributed over the entire side of the positioning portion 311. The specific number can be set according to actual needs and is not limited here. It can be understood that in order to improve the positioning stability, a plurality of positioning grooves 3111 can be provided on both sides of the positioning portion 311 in the X-axis direction.

[0082] See also Figure 2 and Figure 3 The positioning assembly 33 includes a support member 331 , a receiving box 332 , a pulling plate 333 , a handle 334 , a plurality of positioning pins 335 and a plurality of elastic members 336 .

[0083] The support member 331 is slidably connected to the positioning portion 311, the first adjustment member 342 is connected to the support member 331, the extrusion member 343 is slidably connected to the side of the support member 331 facing the fixed clamping member 20, and the support member 331 is provided with a plurality of first through holes 3311 on the side in the X-axis direction. The cross section of the support member 331 in the XZ plane can be roughly C-shaped, which is convenient for connection with the positioning portion 311 and is not easy to slip, thereby improving the stability of the connection. The radius of the first through hole 3311 is the same as the radius of the positioning groove 3111, and the number of the first through holes 3311 can be 9, 10, 11, etc., and the position of the first through hole 3311 in the Z-axis direction is consistent with the position of the positioning groove 3111 in the Z-axis direction.

[0084] The receiving box 332 is connected to the side surface of the supporting member 331 in the X-axis direction. It can be understood that a cavity is provided inside the receiving box 332 to accommodate the pulling plate 333, the positioning pin 335 and the elastic member 336, etc.

[0085] The traction plate 333 is movably disposed in the accommodating box 332 . The traction plate 333 is provided with a plurality of second through holes 3331 . The plurality of second through holes 3331 correspond one-to-one to the plurality of first through holes 3311 . It can be understood that the number, size and position of the second through holes 3331 are the same as those of the first through holes 3311 .

[0086] The handle 334 is movably inserted into the receiving box 332 and fixedly connected to the pulling plate 333 .

[0087] Multiple positioning pins 335 are movably arranged in the accommodating box 332, and the multiple positioning pins 335 correspond to the multiple second through holes 3331 one by one. The positioning pins 335 are inserted into the corresponding second through holes 3331 and the corresponding first through holes 3311, and the positioning pins 335 pass through the first through holes 3311 and are then inserted into the positioning grooves 3111 to limit the support member 331 in the Y-axis direction. A stop portion 3351 is provided at one end of the positioning pin 335 inserted in the second through hole 3331, and the stop portion 3351 abuts against the side of the traction plate 333 away from the support member 331. The number of the positioning pins 335 is consistent with the number of the second through holes 3331, and each positioning pin 335 is correspondingly inserted into a second through hole 3331 and a corresponding first through hole 3311. The positioning pin 335 can be a columnar structure, and the radius of one end of the positioning pin 335 inserted into the second through hole 3331 is the same as the radius of the second through hole 3331, the first through hole 3311 and the positioning groove 3111. In this way, the stability of the positioning of the support member 331 after the positioning pin 335 is inserted into the positioning groove 3111 can be improved. It can be understood that the stopper 3351 can be a sheet-like structure, and its radius is greater than the radius of the second through hole 3331, so that when the traction plate 333 moves away from the positioning portion 311, it can push the stopper 3351 and drive the positioning pin 335 to move away from the positioning portion 311.

[0088] A plurality of elastic members 336 are disposed in the receiving box 332, and the plurality of elastic members 336 correspond to the plurality of positioning pins 335 one by one, and the elastic members 336 are sleeved on the corresponding positioning pins 335, and the two ends of the elastic members 336 are respectively in contact with the inner wall of the receiving box 332 and the stopper 3351. The elastic members 336 can be springs, and are used to push the positioning pins 335 to move toward the positioning grooves 3111.

[0089] Among them, the handle 334 is used to drive the traction plate 333 to move in the accommodating box 332 under the action of external force, thereby driving multiple positioning pins 335 to move away from the positioning groove 3111, and the elastic member 336 is used to push the positioning pin 335 to move toward the positioning groove 3111 so that the positioning pin 335 is inserted into the positioning groove 3111.

[0090] The specific process of moving and positioning the positioning assembly 33 is roughly as follows: when moving the positioning assembly 33, the handle 334 is pulled outward, and the handle 334 drives the traction plate 333 to move away from the positioning portion 311, and the traction plate 333 drives the positioning pin 335 to move away from the positioning groove 3111 by pushing the stopper 3351 on the positioning pin 335, thereby separating the positioning pin 335 from the positioning portion 311, and then the positioning assembly 33 can be moved along the Y-axis direction. The positioning assembly 33 is positioned in such a way that after the positioning assembly 33 is moved to a suitable position along the Y-axis direction, the handle 334 is released, and the elastic member 336 pushes the positioning pin 335 toward the positioning groove 3111, thereby inserting the positioning pin 335 into the positioning groove 3111, and the positioning assembly 33 is clamped and positioned. The operation is simple and the positioning effect is good.

[0091] In one embodiment, a accommodating box 332, a traction plate 333, a handle 334, a plurality of positioning pins 335 and a plurality of elastic members 336 are provided on both sides of the support member 331 in the X-axis direction, and they can be arranged in a mirror-symmetrical manner to further improve the stability of positioning.

[0092] In some embodiments, see Figure 2 and Figure 3 A plurality of third through holes 3321 are provided on one side of the receiving box 332 away from the supporting member 331, and the plurality of third through holes 3321 correspond to the plurality of first through holes 3311 one by one, and one end of the positioning pin 335 away from the corresponding first through hole 3311 is slidably inserted into the corresponding third through hole 3321, so that the receiving box 332 supports the positioning pin 335. In this way, the two ends of the positioning pin 335 are respectively disposed in the second through hole 3331 and the third through hole 3321, so that the traction plate 333 and the receiving box 332 support the positioning pin 335, thereby improving the stability of the positioning pin 335 when it moves.

[0093] In some embodiments, see Figure 2 , Figure 3 and Figure 4 , the multiple positioning grooves 3111 on the positioning part 311 are equidistantly distributed in the Y-axis direction, and the multiple positioning pins 335 are non-equidistantly distributed in the Y-axis direction, so that when the support member 331 is positioned on the positioning part 311, at least one positioning pin 335 corresponds to the positioning groove 3111. It can be understood that the distances between adjacent positioning grooves 3111 are the same. In actual use, due to the different sizes of the workpiece 200, the position of the positioning assembly 33 on the positioning part 311 is not necessarily directly opposite to the positioning groove 3111, that is, if the multiple positioning pins 335 are also arranged in an equidistant manner, it will result in that all the positioning pins 335 at certain positions cannot be inserted into the positioning groove 3111, resulting in failure to position. The multiple positioning pins 335 are non-equidistantly distributed in the Y-axis direction, for example, the distances between adjacent positioning pins 335 are arranged in an arithmetic progression. When the support member 331 is moved, at least one positioning pin 335 can be inserted into the positioning groove 3111 to complete the positioning of the support member 331.

[0094] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The multiple positioning grooves 3111 on the positioning portion 311 are alternately staggered and arranged in two rows along the Y-axis direction. The distance between two adjacent positioning grooves 3111 in each row is 10 unit lengths, and the distance between two corresponding adjacent positioning grooves 3111 in the two rows in the Y-axis direction is 5 unit lengths. It can be understood that the radius of the positioning groove 3111 is less than 5 unit lengths. There are 10 positioning pins 335, which are arranged in two rows alternately along the Y-axis direction. There are 5 positioning pins 335 in each row. The distance between two adjacent positioning pins 335 in the first row is 10 unit lengths, 9 unit lengths, 8 unit lengths, and 7 unit lengths, respectively. The distance between two adjacent positioning pins 335 in the second row is 9 unit lengths, 9 unit lengths, 8 unit lengths, and 7 unit lengths, respectively. The distance between the first positioning pin 335 in the second row and the first positioning pin 335 in the first row in the Y-axis direction is 5 unit lengths, and the distance between the second positioning pin 335 in the second row and the first positioning pin 335 in the first row in the Y-axis direction is 4 unit lengths.

[0095] The size of each unit length can be 1mm, 2mm, 5mm, 10mm, etc., and can be set according to actual needs to meet the positioning requirements of different workpieces 200, and is not limited here.

[0096] It can be understood that the distance between two adjacent positioning pins 335 in the first row is 10 unit lengths, 9 unit lengths, 8 unit lengths, and 7 unit lengths, respectively. The distance between the first positioning pin 335 in the second row and the first positioning pin 335 in the first row in the Y-axis direction is 5 unit lengths, the distance between the second positioning pin 335 in the second row and the first positioning pin 335 in the first row in the Y-axis direction is 4 unit lengths, and the distance between the second positioning pin 335 in the second row and the second positioning pin 335 in the first row in the Y-axis direction is 6 unit lengths. Degrees, the distance between the third positioning pin 335 in the second row and the second positioning pin 335 in the first row in the Y-axis direction is 3 unit lengths, and so on, the distance between the fourth positioning pin 335 in the second row and the third positioning pin 335 in the first row in the Y-axis direction is 2 unit lengths, the distance between the fifth positioning pin 335 in the second row and the fourth positioning pin 335 in the first row in the Y-axis direction is 1 unit length, and the distance between the fifth positioning pin 335 in the second row and the fifth positioning pin 335 in the first row in the Y-axis direction is 6 unit lengths. In this way, the distances of the plurality of positioning pins 335 in the Y-axis direction are 10 unit lengths, 9 unit lengths, 8 unit lengths, 7 unit lengths, 6 unit lengths, 5 unit lengths, 4 unit lengths, 3 unit lengths, 2 unit lengths, and 1 unit length. Therefore, the unit distance of the support member 331 moving on the positioning portion 311 can be reduced from the distance value between the two positioning grooves 3111 (i.e., 10 unit lengths or 5 unit lengths) to 1 unit length, i.e., when the support member 331 moves on the positioning portion 311 by 1 unit length, no matter where the support member 331 moves to the positioning portion 311, there is a positioning pin 335 that can be inserted into the positioning groove 3111 for positioning, which greatly improves the positioning accuracy. Moreover, by the extrusion member 343 pushing the movable clamping member 344 to move, the error within 1 unit length between the movable clamping member 344 and the workpiece 200 can be eliminated, further improving the positioning accuracy.

[0097] In another embodiment, the plurality of positioning grooves 3111 on the positioning portion 311 are alternately arranged in two rows along the Y-axis direction and the positioning grooves 3111 in the two rows are staggered, the distance between two adjacent positioning grooves 3111 in each row is 10 unit lengths, and the distance between two corresponding adjacent positioning grooves 3111 in the two rows in the Y-axis direction is 5 unit lengths. There are 10 positioning pins 335, which are arranged in two rows alternately along the Y-axis direction. There are 5 positioning pins 335 in each row. The distance between two adjacent positioning pins 335 in the first row is 10 unit lengths, 9 unit lengths, 8 unit lengths, and 6 unit lengths, respectively. The distance between two adjacent positioning pins 335 in the second row is 10 unit lengths, 9 unit lengths, 8 unit lengths, and 7 unit lengths, respectively. The distance between the first positioning pin 335 in the second row and the first positioning pin 335 in the first row in the Y-axis direction is 6 unit lengths, and the distance between the second positioning pin 335 in the second row and the first positioning pin 335 in the first row in the Y-axis direction is 4 unit lengths. Then the distance between the third positioning pin 335 in the second row and the second positioning pin 335 in the first row in the Y-axis direction is 3 unit lengths, the distance between the fourth positioning pin 335 in the second row and the third positioning pin 335 in the first row in the Y-axis direction is 2 unit lengths, the distance between the fifth positioning pin 335 in the second row and the fourth positioning pin 335 in the first row in the Y-axis direction is 1 unit length, and the distance between the fifth positioning pin 335 in the second row and the fifth positioning pin 335 in the first row in the Y-axis direction is 5 unit lengths. The distance between multiple positioning pins 335 in the Y-axis direction can also be 10 unit lengths, 9 unit lengths, 8 unit lengths, 7 unit lengths, 6 unit lengths, 5 unit lengths, 4 unit lengths, 3 unit lengths, 2 unit lengths, and 1 unit length.

[0098] In some embodiments, see Figure 2 and Figure 3The extrusion member 343 is provided with a first dovetail protrusion 3431 and a second dovetail protrusion 3432 on both sides in the Y-axis direction, a first dovetail groove 3312 corresponding to the first dovetail protrusion 3431 is provided on the side of the support member 331 abutting against the extrusion member 343, and a second dovetail groove 3441 corresponding to the second dovetail protrusion 3432 is provided on the side of the movable clamping member 344 abutting against the extrusion member 343, the first dovetail protrusion 3431 is slidably disposed in the first dovetail groove 3312, and the second dovetail protrusion 3432 is slidably disposed in the second dovetail groove 3441, so that the support member 331 can pull the movable clamping member 344 to move synchronously when moving along the positioning portion 311. In this way, the extrusion member 343 can be movably connected with the support member 331 and the movable clamping member 344 respectively, and when the support member 331 is moved, the movable clamping member 344 can be pulled by the extrusion member 343 to move synchronously, so as to facilitate the adjustment of the position of the movable clamping member 344.

[0099] In some embodiments, see Figure 1 , Figure 2 and Figure 5 The base 10 is provided with a plurality of T-slots 11 extending along the X-axis direction. The T-slots 11 may be provided with two, three, etc. The fixing clamp 20 may be fixedly connected to the base 10 by T-bolts in conjunction with the T-slots 11.

[0100] The movable seat 31 further includes a connecting portion 312 and a supporting portion 313. The connecting portion 312 abuts against the base 10, the supporting portion 313 is connected to the connecting portion 312, and the positioning portion 311 is connected to the supporting portion 313. The cross section of the movable seat 31 in the XZ plane may be an I-shape to provide a stable supporting effect.

[0101] The connecting assembly 32 includes a balancing rod 321 , a plurality of pressing members 322 , a plurality of rocker plates 323 , a plurality of locking members 324 and a second adjusting member 325 .

[0102] The balance bar 321 is movably inserted into the support portion 313 along the X-axis direction, and both ends of the balance bar 321 extend out of the support portion 313 .

[0103] A plurality of holding members 322 are respectively connected to the two ends of the balance bar 321, and each holding member 322 is provided with two holding portions 3221 along the Y-axis direction. The holding members 322 may be provided with two, four, etc., and symmetrically arranged at the two ends of the balance bar 321. The cross section of the holding member 322 in the YZ plane may be T-shaped, and the two holding portions 3221 protrude from the body of the holding member 322.

[0104] One end of each seesaw 323 abuts against the connection portion 312, and the other end abuts against a holding portion 3221. The end of the seesaw 323 abutting against the connection portion 312 can be close to the connection portion 312, and the end of the seesaw 323 abutting against the holding portion 3221 can be obliquely pointed from the connection portion 312 to the holding portion 3221. The number of seesaws 323 can be four, eight, etc., each seesaw 323 is provided corresponding to a holding portion 3221, and every two seesaws 323 are symmetrically arranged on both sides of the holding member 322.

[0105] The plurality of locking members 324 correspond to the plurality of seesaw plates 323 one by one, and each locking member 324 is connected to one end of the corresponding seesaw plate 323 abutting against the connecting portion 312, and each locking member 324 also penetrates the connecting portion 312 and is inserted into the T-shaped slot 11. The locking member 324 can be a part such as a T-shaped bolt that can fit into the T-shaped slot 11, and the number of the locking members 324 can be four, eight, or the like.

[0106] The second adjusting member 325 is movably inserted in the positioning portion 311 and the supporting portion 313, and the second adjusting member 325 abuts against the balancing rod 321. The second adjusting member 325 is used to push the balancing rod 321 to move toward the connecting portion 312, so as to drive the holding member 322 to move toward the connecting portion 312, thereby causing the holding member 3221 to press the seesaw 323 to rotate, so that the seesaw 323 drives the locking member 324 to move away from the base 10, and locks the movable seat 31. The second adjusting member 325 can be a flat head bolt, etc., and the second adjusting member 325 can be connected to the positioning portion 311 and the supporting portion 313 by threaded connection.

[0107] It is understandable that when connecting the movable seat 31 and the base 10, multiple positioning bolts (not shown) can be used for fixed connection, but this method requires loosening and tightening multiple positioning bolts when adjusting the position of the movable seat 31, which is complicated to operate. In this embodiment, multiple locking members 324 may not be completely locked when connecting the seesaw 323, the connecting portion 312 and the base 10, so as to facilitate the movement and adjustment of the position of the movable seat 31 on the base 10. When locking is required, the second adjusting member 325 is adjusted to make the second adjusting member 325 push the balance bar 321 in the opposite direction of the Z-axis direction, thereby driving the holding member 322 to move in the opposite direction of the Z-axis direction, and the holding portion 3221 of the holding member 322 presses the seesaw 323 to rotate, and the seesaw 323 drives the locking member 324 to move in the Z-axis direction, thereby locking the movable seat 31. When it is necessary to loosen the movable seat 31, it is only necessary to reversely adjust the second adjusting member 325, thereby making the multiple locking members 324 loosen the base 10. Therefore, in this embodiment, the movable seat 31 can be locked or loosened only by adjusting the second adjusting member 325, which is convenient to operate, reduces labor intensity and improves work efficiency.

[0108] In some embodiments, see Figure 1, Figure 5 and Figure 6 The connecting assembly 32 further includes a sleeve 326, which is movably disposed on the supporting portion 313 and sleeved on the balancing rod 321. The balancing rod 321 is provided with a spherical portion 3211 adapted to the sleeve 326. The balancing rod 321 is rotatably connected to the sleeve 326. The second adjusting member 325 abuts against the sleeve 326 to push the sleeve 326 and the balancing rod 321 to move toward the connecting portion 312. In this way, when the forces at both ends of the balancing rod 321 are uneven, the balancing rod 321 can rotate in the sleeve 326 through the spherical portion 3211 to keep the forces at both ends of the balancing rod 321 balanced, so that the balancing rod 321 applies the same force to the holding members 322 at both ends, thereby making the multiple locking members 324 equally stressed, so as to improve the positioning stability.

[0109] In some embodiments, see Figure 1 , Figure 5 and Figure 6 , both ends of the balance bar 321 are provided with connecting protrusions 3212, the connecting protrusions 3212 are arranged along the X-axis direction, and the connecting protrusions 3212 are arc-shaped structures, the holding piece 322 is provided with a connecting groove 3222 adapted to the connecting protrusion 3212, and the holding piece 322 is rotatably connected to the balance bar 321 through the cooperation of the connecting groove 3222 and the connecting protrusion 3212. The cross section of the connecting protrusion 3212 in the YZ plane can be T-shaped, and the cross section of the connecting groove 3222 in the YZ plane can be T-shaped, so that the holding piece 322 is slidably connected to the balance bar 321 through the connecting groove 3222 and the connecting protrusion 3212. The cross-section of the connecting protrusion 3212 in the XZ plane can be an arc-shaped, and the middle part of it is far away from the base 10. The cross-section of the connecting groove 3222 in the XZ plane is an arc-shaped that is compatible with the connecting protrusion 3212, so that when the two ends of the balance bar 321 move up and down in the Z-axis direction, the pressing member 322 can rotate relative to the balance bar 321, thereby keeping the pressing portion 3221 of the pressing member 322 in a horizontal state, avoiding the pressing member 322 from tilting after moving with the balance bar 321 in the Z-axis direction, resulting in a reduction in the contact area between the pressing portion 3221 and the rocker 323. The rotational connection between the pressing member 322 and the balance bar 321 can improve the stability of the abutment between the pressing portion 3221 and the rocker 323.

[0110] In some embodiments, see Figure 2 and Figure 5A limiting hole 3231 is provided at one end of each seesaw 323 abutting against the connecting portion 312, and a plurality of limiting pins 3121 are provided on the connecting portion 312, and each limiting pin 3121 is correspondingly inserted into a limiting hole 3231 of a seesaw 323 to limit the seesaw 323. In this way, the seesaw 323 can be limited to prevent the seesaw 323 from falling off during adjustment or use, resulting in unstable positioning of the movable seat 31, thereby affecting the positioning of the workpiece 200.

[0111] The working process of the clamping device 100 provided in the embodiment of the present application is roughly as follows:

[0112] First, move the movable seat 31 to a suitable position on the base 10 along the X-axis direction, and then adjust the second adjusting member 325 so that the second adjusting member 325 pushes the sleeve 326 to move in the opposite direction of the Z-axis. The sleeve 326 drives the balance bar 321 and the holding member 322 to move in the opposite direction of the Z-axis. The holding member 322 holds the rocker 323 to rotate, and the rocker 323 drives the locking member 324 to move in the Z-axis direction, thereby completing the locking of the movable seat 31.

[0113] Then, the workpiece 200 is placed on the bearing surface 21 of the fixed clamping member 20, and the handle 334 is pulled to drive the traction plate 333 to move away from the support member 331. The traction plate 333 pushes the positioning pin 335 away from the positioning portion 311. At this time, the positioning assembly 33 can be guided by the handle 334 to move toward the workpiece 200 until the movable clamping member 344 abuts against the workpiece 200, and then the handle 334 is released, and the elastic member 336 pushes the positioning pin 335 to move toward the positioning portion 311 until one of the positioning pins 335 passes through the first through hole 3311 and is inserted into the corresponding positioning groove 3111 to complete the positioning.

[0114] Finally, adjust the first adjusting member 342 so that the first adjusting member 342 drives the push plate 341 to move toward the support plate, the push plate 341 pushes the extrusion member 343 to move toward the connecting part 312, and the extrusion member 343 pushes the movable clamping member 344 to move along the Y-axis direction, and the movable clamping member 344 then cooperates with the limiting protrusion 22 of the fixed clamping member 20 to clamp the workpiece 200.

[0115] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A clamping device, characterized in that: include: Base; A fixed clamping member connected to the base and extending along a first direction, wherein a bearing surface for supporting a workpiece and a limiting protrusion for abutting against the workpiece are provided on a side of the fixed clamping member away from the base, and the limiting protrusion is convexly provided on the bearing surface; The movable clamping mechanism comprises a movable seat, a connecting component, a positioning component and a movable clamping component, wherein the movable seat is slidably arranged on the base along the first direction, the movable seat extends along a second direction perpendicular to the first direction and abuts against the fixed clamping member, the connecting component is arranged on the movable seat and connected to the base for connecting the movable seat and the base, the positioning component is movably connected to the movable seat and can be clamped on the movable seat, the movable clamping component comprises a push plate, a first adjusting member, an extruding member and a movable clamping member, the push plate is arranged on the positioning member away from the movable seat On one side of the movable seat, the first adjusting member is inserted into the push plate and connected to the positioning assembly, the extrusion member is slidably connected to the side of the positioning assembly facing the fixed clamping member, the movable clamping member is slidably connected to the side of the extrusion member facing the fixed clamping member and connected to the inclined surface of the extrusion member, the first adjusting member is used to push the push plate to move toward the positioning assembly, so that the push plate pushes the extrusion member to move toward the movable seat, and the extrusion member pushes the movable clamping member to move toward the limiting protrusion, thereby making the movable clamping member cooperate with the fixed clamping member to clamp the workpiece.

2. The clamping device according to claim 1, characterized in that: A positioning portion is provided on one side of the movable seat away from the base, and a plurality of positioning grooves spaced apart along the second direction are provided on the side of the positioning portion in the first direction; The positioning component comprises: A support member is slidably connected to the positioning portion, the first adjusting member is connected to the support member, the extruding member is slidably connected to a side of the support member facing the fixed clamping member, and a plurality of first through holes are provided on a side of the support member in the first direction; A containing box connected to a side surface of the supporting member in the first direction; A traction plate, movably disposed in the accommodation box, the traction plate is provided with a plurality of second through holes, and the plurality of second through holes correspond to the plurality of first through holes one by one; A handle, movably inserted into the receiving box and fixedly connected to the traction plate; a plurality of positioning pins, all movably disposed in the accommodating box, the plurality of positioning pins corresponding to the plurality of second through holes one by one, the positioning pins being inserted into the corresponding second through holes and the corresponding first through holes, and the positioning pins passing through the first through holes and then inserted into the positioning grooves, so as to limit the support member in the second direction, a stopper being disposed at one end of the positioning pin inserted in the second through hole, the stopper abutting against a side of the traction plate away from the support member; and A plurality of elastic members are arranged in the accommodating box, and the plurality of elastic members correspond to the plurality of positioning pins one by one, respectively. The elastic members are sleeved on the corresponding positioning pins, and two ends of the elastic members are respectively in contact with the inner wall of the accommodating box and the stopper.

3. The clamping device according to claim 2, characterized in that: A plurality of third through holes are formed on a side of the storage box away from the support member, and the plurality of third through holes correspond one-to-one to the plurality of first through holes. One end of the positioning pin away from the corresponding first through hole is slidably inserted into the corresponding third through hole so that the storage box supports the positioning pin.

4. The clamping device according to claim 3, characterized in that: The plurality of positioning grooves on the positioning portion are equidistantly distributed in the second direction, and the plurality of positioning pins are non-equidistantly distributed in the second direction, so that when the support member is positioned on the positioning portion, at least one positioning pin corresponds to the positioning groove.

5. The clamping device according to claim 4, characterized in that: The plurality of positioning grooves on the positioning portion are alternately staggered and arranged in two rows along the second direction, the distance between two adjacent positioning grooves in each row is 10 unit lengths, and the distance between two corresponding adjacent positioning grooves in the two rows in the second direction is 5 unit lengths; There are 10 locating pins, which are arranged in two rows in an alternating staggered manner along the second direction. There are 5 locating pins in each row. The distance between two adjacent locating pins in the first row is 10 unit lengths, 9 unit lengths, 8 unit lengths, and 7 unit lengths, respectively. The distance between two adjacent locating pins in the second row is 9 unit lengths, 9 unit lengths, 8 unit lengths, and 7 unit lengths, respectively. The distance between the first locating pin in the second row and the first locating pin in the first row in the second direction is 5 unit lengths, and the distance between the second locating pin in the second row and the first locating pin in the first row in the second direction is 4 unit lengths.

6. The clamping device according to claim 2, characterized in that: The extrusion member is provided with a first dovetail protrusion and a second dovetail protrusion on both sides in the second direction, the support member is provided with a first dovetail groove corresponding to the first dovetail protrusion on one side abutting against the extrusion member, the movable clamping member is provided with a second dovetail groove corresponding to the second dovetail protrusion on one side abutting against the extrusion member, the first dovetail protrusion is slidably arranged in the first dovetail groove, and the second dovetail protrusion is slidably arranged in the second dovetail groove, so that the support member can pull the movable clamping member to move synchronously when moving along the positioning portion.

7. The clamping device according to claim 2, characterized in that: The base is provided with a plurality of T-shaped slots extending along the first direction; The movable seat further comprises a connecting portion and a supporting portion, the connecting portion abuts against the base, the supporting portion is connected to the connecting portion, and the positioning portion is connected to the supporting portion; The connection component comprises: A balance bar, movably inserted in the support portion along the first direction, and both ends of the balance bar extend out of the support portion; A plurality of pressing members, respectively connected to the two ends of the balance bar, each of the pressing members is provided with two pressing portions along the second direction; A plurality of seesaw plates, one end of each of the seesaw plates abuts against the connecting portion, and the other end of each of the seesaw plates abuts against one of the pressing portions; A plurality of locking members corresponding to the plurality of seesaw plates one by one, each of the locking members being connected to one end of the corresponding seesaw plate abutting against the connecting portion, and each of the locking members also passing through the connecting portion and inserted into the T-shaped slot; and A second adjusting member is movably inserted between the positioning portion and the supporting portion, the second adjusting member is in contact with the balancing rod, and the second adjusting member is used for pushing the balancing rod to move toward the connecting portion, so as to drive the holding member to move toward the connecting portion, and then the holding portion presses the rocker to rotate, so that the rocker drives the locking member to move away from the base until the movable seat is locked.

8. The clamping device according to claim 7, characterized in that: The connecting assembly also includes a sleeve, which is movably arranged on the supporting portion and sleeved on the balancing rod. The balancing rod is provided with a spherical portion adapted to the sleeve. The balancing rod is rotatably connected to the sleeve. The second adjusting member abuts against the sleeve to push the sleeve and the balancing rod to move toward the connecting portion.

9. The clamping device according to claim 7, characterized in that: Both ends of the balance bar are provided with connecting protrusions, the connecting protrusions are arranged along the first direction, and the connecting protrusions are arc-shaped structures. The holding piece is provided with a connecting groove adapted to the connecting protrusions. The holding piece is rotatably connected to the balance bar through the cooperation of the connecting groove and the connecting protrusion.

10. The clamping device according to claim 7, characterized in that: A limiting hole is formed at one end of each of the seesaws abutting against the connecting portion, and a plurality of limiting pins are arranged on the connecting portion. Each limiting pin is correspondingly inserted into the limiting hole of a seesaw to limit the seesaw.

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