CN211804928U

CN211804928U - Quick-change clamp

Info

Publication number: CN211804928U
Application number: CN201922485108.5U
Authority: CN
Inventors: 沈友军; 孙鹏; 陈佳伟; 吴建鹏; 臧金龙; 何天龙
Original assignee: Harbin Anyudi Aviation Industry Co ltd
Current assignee: Harbin Anyudi Aviation Industry Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-30
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a quick change anchor clamps, include: the positioning plate is arranged on the bottom plate; the pressing plate assembly is arranged on the bottom plate and matched with the positioning plate to fix a workpiece to be machined; a groove is formed in one side, away from the bottom plate, of the positioning plate; the groove is used for being matched with the protruding structure on one side, facing the bottom plate, of the workpiece to be machined and accommodating the protruding structure of the workpiece to be machined. The positioning plate provided with the groove is matched with the workpiece to be processed with the protruding structure, so that the positioning plate can limit the workpiece to be processed in the horizontal direction; and the workpiece to be processed is clamped by matching the pressing plate assembly with the bottom plate and the positioning plate, so that the workpiece to be processed is limited in the vertical direction by the quick-change clamp, and the quick-change clamp is guaranteed to stably clamp the workpiece to be processed.

Description

Quick-change clamp

Technical Field

The utility model relates to an anchor clamps technical field particularly, relates to a quick change anchor clamps.

Background

At present, due to production needs, some workpieces with complex structures need to be subjected to numerical control machining, however, for workpieces to be machined with complex structural components, when one side of the workpieces to be machined, which faces a workbench, is not smooth enough, for example, when one side of the workpieces to be machined, which faces the workbench, is provided with a plurality of plate-shaped protruding structures, the workpieces to be machined are not easily fixed on the workbench of a milling machine.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be: how to firmly fix a workpiece to be processed with more plate-shaped protruding parts on a workbench.

In order to solve the above problem, the utility model provides a quick-change clamp, include:

a base plate;

a positioning plate disposed on the bottom plate;

the pressing plate assembly is arranged on the bottom plate and is matched with the positioning plate to fix a workpiece to be machined;

a groove is formed in one side, away from the bottom plate, of the positioning plate; the groove is used for being matched with a protruding structure on one side, facing the bottom plate, of the workpiece to be machined and accommodating the protruding structure of the workpiece to be machined.

Therefore, the positioning plate with the groove is arranged, and the groove is matched with the plate-shaped protruding structure of the workpiece to be processed; the plate-shaped protruding structure facing one side of the bottom plate on the workpiece to be machined is accommodated in the groove, so that the contact area between the workpiece to be machined and the positioning plate is increased, and the positioning plate is enabled to realize the limit of the workpiece to be machined in the horizontal direction through the groove; the quick-change clamp further comprises a pressing plate component, the pressing plate component is matched with the bottom plate and the positioning plate, a workpiece to be machined is clamped, the workpiece to be machined is limited in the vertical direction by the quick-change clamp, the clamping force of the quick-change clamp is guaranteed, the workpiece to be machined is further guaranteed to be stably connected with the quick-change clamp, and the workpiece to be machined is guaranteed to be stably arranged on the workbench.

Optionally, an orthographic projection of the positioning plate on the horizontal plane falls within an orthographic projection of the bottom plate on the horizontal plane.

Optionally, the grooves include a first groove, a second groove, a third groove and a fourth groove, and are used for accommodating the protruding structures on the workpiece to be processed, which are matched with the first groove, the second groove, the third groove and the fourth groove; the first groove and the third groove are communicated with the second groove and the fourth groove; the groove bottoms of the first groove, the second groove, the third groove and the fourth groove are all located on the same plane.

Optionally, the grooves further include a fifth groove and a sixth groove, and the fifth groove and the sixth groove are used for accommodating the protruding structures on the workpiece to be processed, which are matched with the fifth groove and the sixth groove; the fifth groove is communicated with the first groove, and the sixth groove is communicated with the third groove; the groove bottoms of the fifth groove and the sixth groove are located on the same plane, and in the vertical direction, the groove bottom of the fifth groove is located above the groove bottom of the first groove.

Optionally, the grooves further include a seventh groove and an eighth groove, and the seventh groove and the eighth groove are used for accommodating the protruding structures on the workpiece to be processed, which are matched with the seventh groove and the eighth groove; the seventh groove and the eighth groove are respectively communicated with the fifth groove and the sixth groove; the bottoms of the seventh groove and the eighth groove are located on the same plane, and in the vertical direction, the bottom of the seventh groove is located above the bottom of the fifth groove.

Optionally, a plurality of fixing holes are further formed in the bottom plate and/or the positioning plate, the pressing plate assembly includes a connecting member and a pressing plate, and the fixing holes are matched with the connecting member to mount the pressing plate at a setting position on the bottom plate or the positioning plate.

Optionally, the positioning plate comprises a positioning plate body and a positioning pin which are fixedly connected; the locating pin is columnar structure, just the protruding locating of locating pin locating the locating plate body deviates from one side of bottom plate.

Optionally, the positioning pin comprises a positioning part and a guiding part which are fixedly connected; the guide part is in a cone frustum shape and is provided with a large end and a small end; one end of the positioning part is connected with the positioning plate body, and the other end of the positioning part is connected with the large end.

Optionally, a sinking groove is formed in the positioning plate, the positioning pin is arranged in the sinking groove, and the positioning pin and the sinking groove are coaxially arranged.

Optionally, the bottom plate includes a bottom plate body and two rings arranged on the bottom plate body, the two rings are located on one side of the bottom plate body facing the positioning plate, and the two rings are arranged on the bottom plate body in an oblique angle.

Drawings

Fig. 1 is a schematic structural view of a quick-change clamp according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another view angle of the quick-change clamp according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another view angle of the quick-change clamp according to an embodiment of the present invention.

Description of reference numerals:

1-a clamp body; 11-a base plate; 111-a backplane body; 112-a lifting ring; 12-a positioning plate; 121-a positioning plate body; 122-a locating pin; 1221-a guide; 1222-a positioning part; 123-sink tank; 124-a first connection; 125-a second connecting portion; 126-a third connecting portion; 13-a fixation hole; 14-a reference hole; 2-a platen assembly; 21-pressing plate; 22-a connector; 3-a groove; 31-a first groove; 32-a second groove; 33-a third groove; 34-a fourth groove; 35-a fifth groove; 36-a sixth groove; 37-seventh groove; 38-eighth groove.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

In the description of the present invention, it should be noted that a coordinate system XYZ is provided herein, wherein the forward direction of the X axis represents the right direction, the reverse direction of the X axis represents the left direction, the forward direction of the Y axis represents the front direction, the reverse direction of the Y axis represents the rear direction, the forward direction of the Z axis represents the upper direction, and the reverse direction of the Z axis represents the lower direction. And the terms "upper", "lower", "left", "right", "high", "low", etc. indicate directions or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience of description and for simplicity of description, and do not indicate or imply that the device referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

With reference to fig. 1-3, an embodiment of the present invention provides a quick-change clamp, including: the positioning plate 12 is arranged on the bottom plate 11; the pressure plate assembly 2 is arranged on the bottom plate 11 and is matched with the positioning plate 12 to fix a workpiece to be processed; a groove 3 is arranged on one side of the positioning plate 12, which is far away from the bottom plate 11; the groove 3 is used for being matched with a protruding structure on one side, facing the bottom plate 11, of the workpiece to be processed and accommodating the protruding structure of the workpiece to be processed.

When the workpiece to be machined is subjected to numerical control machining, namely milling machining is carried out on the workpiece to be machined, because the cutting force applied to the workpiece to be machined is large, and the vibration force applied to the workpiece to be machined due to cutting is also large, in order to ensure that the workpiece to be machined is stably fixed on a workbench, a clamp is required to clamp the workpiece to be machined so as to ensure the precision of numerical control machining; the quick-change clamp comprises a clamp body 1 and a pressure plate assembly 2, wherein the clamp body comprises a bottom plate 11 and a positioning plate 12; for the fixture body 1, the positioning plate 12 is arranged on the bottom plate 11, the bottom plate 11 and the positioning plate 12 are both in a rectangular plate-shaped structure, and the groove 3 is arranged on one side of the positioning plate 12, which is far away from the bottom plate 11; when the quick-change clamp is used, one side of the bottom plate 11, which is located downward in the vertical direction (i.e., the negative direction of the Z axis in fig. 1 or 3), is attached to a workbench of a milling machine, one side of the bottom plate 11, which is located upward in the vertical direction (i.e., the positive direction of the Z axis in fig. 1 or 3), is attached to one side of the positioning plate 12, which is located downward in the vertical direction, and the bottom plate 11 is detachably connected to the workbench (e.g., by using screws or bolts), and the bottom plate 11 and the positioning plate 12 may be fixedly connected (e.g., welded, integrally formed, etc.) or detachably connected (e.g., screwed, plugged.

Further, when a to-be-processed workpiece with a plate-shaped protruding structure is arranged towards the workbench at one side with the protruding structure, the groove 3 is matched with the protruding structure of the to-be-processed workpiece through the clamp body 1 provided with the groove 3 (namely, the shape of the protruding structure of the to-be-processed workpiece is the same as or similar to that of the groove 3, and the protruding height of the protruding structure is less than or equal to the depth of the groove 3, which is recessed towards the direction of the baffle 11 from one side, away from the bottom plate 11, of the positioning plate 12, so that the to-be-processed workpiece is arranged on the clamp body 1, the plate-shaped protruding structure on the to-be-processed workpiece, which faces towards the clamp body 1, is accommodated in the groove 3, so as to increase the contact area between the to-be-processed workpiece and the clamp body 1, and thus guarantee that the clamp body 1 realizes; the quick-change clamp further comprises a pressing plate component 2, when the quick-change clamp is used for clamping a workpiece to be machined, the workpiece to be machined is arranged on the clamp body 1, and then the pressing plate component 2 is matched with the clamp body 1 to clamp the workpiece to be machined, so that the quick-change clamp can limit the workpiece to be machined in the vertical direction, the clamping force of the quick-change clamp is ensured, and the workpiece to be machined is further ensured to be stably connected with the quick-change clamp, wherein the vertical direction is the Z-axis direction in the figure 1 or the figure 3, the positive direction of the Z axis is the vertical direction, and the negative direction of the Z axis is the vertical direction; the quick-change clamp is matched with the clamp body 1 through the pressure plate assembly 2, so that the quick-change clamp is convenient to clamp and fix a workpiece to be machined, the machined workpiece to be machined clamped on the quick-change clamp can be quickly replaced after the workpiece to be machined is machined, the unmachined workpiece to be machined can be quickly replaced, and the working efficiency of the milling machine is improved; further, when the workpiece to be machined is machined, the quick-change clamp is stably arranged on the workbench of the milling machine, and then the workpiece to be machined is clamped through the quick-change clamp, so that the workpiece to be machined is stably arranged on the workbench, and the workpiece to be machined is stable, namely the workpiece to be machined cannot move on the workbench.

Alternatively, as shown in fig. 1-3, the orthographic projection of the positioning plate 12 on the horizontal plane (i.e., XY plane in fig. 2 or 3) falls within the orthographic projection of the bottom plate 11 on the horizontal plane.

The groove 3 is arranged on one side of the positioning plate 12 departing from the bottom plate 11 (i.e. the positioning plate 12 is arranged on one side which is upward in the vertical direction), and the orthographic projection of the positioning plate 12 on the horizontal plane falls in the orthographic projection of the bottom plate 11 on the horizontal plane (i.e. the cross-sectional area of the positioning plate 12 is smaller than that of the bottom plate 11, wherein the cross-sectional areas of the positioning plate 12 and the bottom plate 11 are respectively the areas of the surfaces of the positioning plate 12 and the bottom plate 11 which are exposed when the positioning plate is cut off along the vertical direction), so that the quick-change clamp is arranged on the bottom plate 11 in a protruding manner, so that the quick-change clamp is convenient to clamp a workpiece to be machined with an H-shaped structure, specifically, the workpiece to be machined with the H-shaped structure is vertically arranged on the clamp body 1, and the quick-change clamp has a plate surface with two sides in the vertical direction (i., the workpiece to be processed is positioned above the bottom plate 11 and is arranged on the positioning plate 12; the locating plate 12 is located between the vertical-direction-located plate surfaces of the two sides of the workpiece to be machined, and the horizontal-plane-located plate surface of the workpiece to be machined is supported, so that the locating plate 12 and the workpiece to be machined can have a larger contact area, and the workpiece to be machined can be clamped stably by the quick-change clamp.

Optionally, as shown in fig. 2 and fig. 3, the groove 3 includes a first groove 31, a second groove 32, a third groove 33, and a fourth groove 34, and is configured to accommodate a protruding structure on the workpiece to be processed, which is adapted to the first groove 31, the second groove 32, the third groove 33, and the fourth groove 34; the first groove 31 and the third groove 33 are communicated with the second groove 32 and the fourth groove 34; the groove bottoms of the first groove 31, the second groove 32, the third groove 33 and the fourth groove 34 are all located on the same plane.

The groove 3 is arranged on one side of the positioning plate 12 departing from the bottom plate 11, the groove 3 comprises a first groove 31, a second groove 32, a third groove 33 and a fourth groove 34, and the side of the positioning plate 12 departing from the bottom plate 11 is divided into three parts by the first groove 31, the second groove 32, the third groove 33 and the fourth groove 34, namely a first connecting part 124, a second connecting part 125 and a third connecting part 126; specifically, the first connecting portion 124 is located in an area enclosed by the first groove 31 and the second groove 32, the second connecting portion 125 is located in an area enclosed by the first groove 31, the second groove 32, the third groove 33 and the fourth groove 34, the third connecting portion 126 is also located in an area enclosed by the first groove 31, the second groove 32, the third groove 33 and the fourth groove 34, and the second connection portion 125 is located between the first connection portion 124 and the third connection portion 126, the groove bottoms of the first groove 31, the second groove 32, the third groove 33 and the fourth groove 34 are all located on the same plane, i.e. the first recess 31, the second recess 32, the third recess 33 and the fourth recess 34 have the same recess depth (recess depth is the depth of recess from the side of the positioning plate 12 facing away from the bottom plate 11 towards the bottom plate 11), the convex structure of the workpiece to be processed with the convex height smaller than or equal to the groove depth of the first groove 31, the second groove 32, the third groove 33 and the fourth groove 34 is accommodated; the shapes of the first groove 31, the second groove 32, the third groove 33 and the fourth groove 34 are the same as or similar to the shapes of corresponding convex structures on the workpiece to be processed, so that the convex structures can be accommodated conveniently, and the stability of connection between the positioning plate and the workpiece to be processed is ensured; so set up, when the quick change anchor clamps are treated the processing work piece and are carried out the centre gripping, treat the processing work piece setting on locating plate 12, and treat the processing work piece towards the protruding structure holding of locating plate 12 one side in first recess 31, second recess 32, third recess 33 and fourth recess 34, first connecting portion 124, second connecting portion 125 and third connecting portion 126 play the ascending limiting displacement of horizontal direction through the protruding structure of treating the processing work piece, thereby play the limiting displacement of treating the processing work piece on the horizontal direction, the stability of treating the processing work piece and being connected with locating plate 12 has been guaranteed, in order to ensure the steadiness of treating the processing work piece and being connected with the quick change anchor clamps.

Optionally, as shown in fig. 2 and fig. 3, the groove 3 further includes a fifth groove 35 and a sixth groove 36, and is configured to accommodate a protruding structure on the workpiece to be processed, which is adapted to the fifth groove 35 and the sixth groove 36; the fifth groove 35 is communicated with the first groove 31, and the sixth groove 36 is communicated with the third groove 33; the groove bottoms of the fifth groove 35 and the sixth groove 36 are located on the same plane, and the groove bottom of the fifth groove 35 is located above the groove bottom of the first groove 31 in the vertical direction (i.e., the Z-axis direction in fig. 3).

On the basis that the first groove 31, the second groove 32, the third groove 33 and the fourth groove 34 divide the side of the positioning plate 12 away from the bottom plate 11 into a first connecting part 124, a second connecting part 125 and a third connecting part 126, the groove 3 further comprises a fifth groove 35 and a sixth groove 36, the fifth groove 35 is arranged on the first connecting part 124 and communicated with the first groove 31, the sixth groove 36 is arranged on the third connecting part 126, and two ends of the sixth groove 36 are respectively communicated with the third groove 33 and the first groove 31; the bottoms of the fifth groove 35 and the sixth groove 36 are located on the same plane, that is, the fifth groove 35 and the sixth groove 36 have the same groove depth, so as to accommodate the protruding structure of the workpiece to be processed, the protruding height of which is less than or equal to the groove depth of the fifth groove 35 and the sixth groove 36; the shapes of the fifth groove 35 and the sixth groove 36 are the same as or similar to the shapes of corresponding convex structures on the workpiece to be processed, so that the convex structures can be accommodated conveniently, and the stability of the connection of the positioning plate and the workpiece to be processed is ensured; in the vertical direction, the bottom of the fifth groove 35 is located above the bottom of the first groove 31; so set up, one side that makes locating plate 12 deviate from bottom plate 11 is the echelonment structure, with wait to process the protruding structure looks adaptation that the work piece is the echelonment structure equally, make the protruding structure holding back of waiting to process the work piece in recess 3, locating plate 12 is treated to process the work piece and is played the limiting displacement on the horizontal direction, and the setting of recess 3, the area of contact of locating plate 12 with the work piece of waiting to process has been increased, in order to guarantee locating plate 12 and wait to process firm the being connected between the work piece, thereby ensured quick change anchor clamps and the firm being connected of waiting to process the work piece.

Optionally, as shown in fig. 2 and fig. 3, the groove 3 further includes a seventh groove 37 and an eighth groove 38, for accommodating a protruding structure on the workpiece to be processed, which is adapted to the seventh groove 37 and the eighth groove 38; the seventh groove 37 and the eighth groove 38 are respectively communicated with the fifth groove 35 and the sixth groove 36; the groove bottoms of the seventh groove 37 and the eighth groove 38 are located on the same plane, and the groove bottom of the seventh groove 37 is located above the groove bottom of the fifth groove 35 in the vertical direction (i.e., the Z-axis direction in fig. 3).

On the basis that the groove 3 further comprises a fifth groove 35 and a sixth groove 36, the groove 3 further comprises a seventh groove 37 and an eighth groove 38, the seventh groove 37 is communicated with the fifth groove 3, the eighth groove 38 is communicated with the sixth groove 36, and the bottoms of the seventh groove 37 and the eighth groove 38 are positioned on the same plane, that is, the seventh groove 37 and the eighth groove 38 have the same groove depth, so as to accommodate the protruding structure of the workpiece to be processed, wherein the protruding height of the protruding structure is less than or equal to the groove depth of the seventh groove 37 and the eighth groove 38; the shapes of the seventh groove 37 and the eighth groove 38 are the same as or similar to the shapes of corresponding convex structures on the workpiece to be processed, so that the convex structures can be accommodated conveniently, and the stability of connection between the positioning plate and the workpiece to be processed is ensured; the groove bottom of the seventh groove 37 is located above the groove bottom of the fifth groove 35 in the vertical direction; so set up, make recess 3 have the tank bottom that is located three different planes, make one side that locating plate 12 deviates from bottom plate 11 be the echelonment structure, with wait to process the protruding structure looks adaptation that the work piece is the echelonment structure equally, make the protruding structure holding of waiting to process the work piece back in recess 3, locating plate 12 is treated to process the work piece and is played the limiting displacement on the horizontal direction, and the setting of recess 3, the area of contact of locating plate 12 with the work piece of waiting to process has been increased, in order to guarantee locating plate 12 and wait to process the firm connection between the work piece, thereby ensured the firm connection of quick change anchor clamps with the work piece of waiting to process.

Optionally, as shown in fig. 2 and 3, a plurality of fixing holes 13 are further provided on the bottom plate 11 and/or the positioning plate 12, the pressure plate assembly 2 includes a connecting member 22 and a pressure plate 21, and the fixing holes 13 cooperate with the connecting member 22 to mount the pressure plate 21 on the bottom plate 11 or the positioning plate 12.

The bottom plate 11 and/or the positioning plate 12 are provided with a plurality of fixing holes 13, specifically, the fixing holes 13 are arranged on the bottom plate 11 or the positioning plate 12, or the fixing holes 13 are arranged on both the bottom plate 11 and the positioning plate 12; the setting of fixed orifices 13 for bottom plate 11 or locating plate 12 pass through connecting piece 22 (such as bolt) and are connected with clamp plate 21, treat at the quick change anchor clamps promptly and process the work piece and carry out the clamping process, when regard as connecting piece 22 with the bolt, treat that the work piece is located between clamp plate 21 and the locating plate 12, the nut of bolt is located bottom plate 11 below, the bolt passes the mating holes that set up on fixed orifices 13 and the clamp plate 21, and set up the nut in clamp plate 21 top and lock, treat with the locating plate 12 and process the work piece and carry out the centre gripping and press from both sides tightly with guaranteeing clamp plate 21 and locating plate 12. The arrangement position of the pressure plate 21 on the bottom plate 11 or the positioning plate 12 is determined by the matching of the fixing holes 13 and the connecting pieces 22, and the position of the pressure plate 21 can be changed by replacing the connecting pieces 22 through the fixing holes 13 at different positions, so that the quick-change clamp can clamp workpieces to be machined with different specifications.

Optionally, as shown in fig. 2 and 3, the bottom plate 11 is provided with a plurality of reference holes 14, the plurality of reference holes 14 are disposed around an edge of a side surface of the bottom plate 11, which is connected to the positioning plate 12, for disposing fasteners (such as bolts) to pass through the reference holes 14 of the workbench and the bottom plate 11, so as to connect the bottom plate 11 and the workbench, and ensure the stability of the quick-change clamp on the workbench.

Optionally, as shown in fig. 1 to fig. 3, the positioning plate 12 includes a fixedly connected positioning plate body 121 and a positioning pin 122; the positioning pin 122 is of a columnar structure, and the positioning pin 122 is convexly disposed on one side of the positioning plate body 121 departing from the bottom plate 11.

Locating pin 122 is protruding to be located one side that locating plate body 121 deviates from bottom plate 11, and locating pin 122 is columnar structure, in order to be used for treating the location of processing the work piece, specifically, locating pin 122 and the jack adaptation that is equipped with on one side of processing the work piece towards locating plate body 121 (the shape of locating pin 122 is the same with the shape of jack or is similar promptly, and the protruding degree of height of locating pin 122 is less than or equal to the sunken degree of depth of jack), when using quick change anchor clamps to treat processing the work piece and press from both sides tightly, locating pin 122 inserts in the jack of processing the work piece, in order to realize that locating pin 122 treats processing the location of processing the work piece on the horizontal direction, the firm of waiting to process.

Alternatively, as shown in conjunction with fig. 1-3, the positioning pin 122 includes a positioning portion 1222 and a guiding portion 1221 fixedly connected; the guide 1221 has a truncated cone shape and has a large end and a small end; one end of the positioning portion 1222 is connected to the positioning plate body 121, and the other end is connected to the large end.

On the basis that the side of the workpiece to be processed facing the positioning plate body 121 is provided with the insertion hole matched with the positioning pin 122, the positioning pin 122 comprises a positioning part 1222 and a guiding part 1221; the guiding portion 1221 is in a shape of a truncated cone and has a large end and a small end, the small end is located above the large end in a vertical direction (i.e., a Z-axis direction in fig. 1 or 3), and an area of an end surface of the small end is smaller than an area of an end surface of the large end, that is, the guiding portion 1221 has a side surface inclined with respect to a horizontal plane (i.e., an XY plane in fig. 2 or 3), so that when a workpiece to be processed is disposed on the positioning plate 12, the guiding portion 1221 guides the insertion of the positioning pin 122 and the insertion hole on the workpiece to be processed; one end of the positioning part 1222 is connected to the positioning board body 121, and the other end is connected to the large end; the arrangement of the positioning pin 122 determines the arrangement position of the workpiece to be processed on the positioning plate 12 through the insertion of the positioning pin 122 and the insertion hole on the workpiece to be processed, and plays a role in limiting the workpiece to be processed in the horizontal direction, thereby ensuring the stable connection between the workpiece to be processed and the positioning plate 12.

Optionally, as shown in fig. 2 and fig. 3, a sinking groove 123 is formed on the positioning plate 12, the positioning pin 122 is disposed in the sinking groove 123, and the positioning pin 122 and the sinking groove 123 are coaxially disposed.

The sinking groove 123 has a cylindrical groove structure, so that for the industrial molding of the sinking groove 123, the sinking groove 123 is preferably in a regular prism shape, or a cylindrical shape, or an elliptic cylindrical shape, and the positioning pin 122 is preferably in a regular prism shape, or a cylindrical shape, or an elliptic cylindrical shape, so as to facilitate the positioning pin 122 to be disposed in the sinking groove 123; the positioning pin 122 and the sinking groove 123 are coaxially arranged, so that the positioning pin 122 and the sinking groove 123 are enclosed to form an annular groove for accommodating an annular protruding structure matched with the annular groove on the workpiece to be processed, and after the workpiece to be processed is arranged on the positioning plate 12, the annular groove can play a limiting role in the horizontal direction on the annular protruding structure to ensure that the workpiece to be processed is stably connected with the quick-change clamp.

Optionally, as shown in fig. 1 to fig. 3, the bottom plate 11 includes a bottom plate body 111 and two hanging rings 112 disposed on the bottom plate body 111, the hanging rings 112 are disposed on one side of the bottom plate body 111 facing the positioning plate 12, and the two hanging rings 112 are disposed on the bottom plate body 111 in an oblique diagonal direction.

The hanging ring 112 is arranged on one side of the bottom plate body 111 connected with the positioning plate 12, and the hanging ring 112 is fixedly connected (for example, welded) or detachably connected (for example, threaded connection) with the bottom plate body 111, at this time, the hanging ring 112 is provided with a screw rod, and the screw rod is inserted into the fixing hole 13 to realize the threaded connection of the hanging ring 112 and the bottom plate body 111); the end of the lifting ring 112 located in the vertical direction (i.e. the positive direction of the Z axis in fig. 1 or fig. 3) is in a ring structure and is used for connecting a hook cable of a crane, so as to facilitate the carrying of the quick-change clamp.

Furthermore, at least two lifting rings 112 are provided to ensure the stability of the quick-change clamp when the quick-change clamp is carried by the lifting rings 112; for example, the two lifting rings 112 are provided, the two lifting rings 112 are diagonally arranged on one side of the bottom plate body 111 connected to the positioning plate 12, specifically, since the bottom plate body 111 is rectangular, the side of the bottom plate body 111 connected to the positioning plate 12 is rectangular, and the two lifting rings 112 are respectively disposed near two ends of one diagonal of the rectangle, so as to ensure the stability of the quick-change clamp when the quick-change clamp is conveyed through the lifting rings 112, and prevent the quick-change clamp from turning over during the conveying process.

Although the present invention has been disclosed above, the scope of the present invention is not limited thereto. Without departing from the spirit and scope of the present invention, those skilled in the art can make various changes and modifications, which will fall into the protection scope of the present invention.

Claims

1. A quick-change clamp, comprising:

a base plate (11);

a positioning plate (12) provided on the bottom plate (11);

the pressure plate assembly (2) is arranged on the bottom plate (11) and is matched with the positioning plate (12) to fix a workpiece to be machined;

a groove (3) is formed in one side, away from the bottom plate (11), of the positioning plate (12); the groove (3) is used for being matched with a protruding structure on one side, facing the bottom plate (11), of the workpiece to be machined and accommodating the protruding structure of the workpiece to be machined.

2. The quick-change holder according to claim 1, characterized in that the orthographic projection of the positioning plate (12) in the horizontal plane falls within the orthographic projection of the base plate (11) in the horizontal plane.

3. The quick-change clamp according to claim 1, characterized in that the grooves (3) comprise a first groove (31), a second groove (32), a third groove (33) and a fourth groove (34) for accommodating the protruding structures on the workpiece to be machined, which are adapted to the first groove (31), the second groove (32), the third groove (33) and the fourth groove (34); the first groove (31) and the third groove (33) are both communicated with the second groove (32) and the fourth groove (34); the bottoms of the first groove (31), the second groove (32), the third groove (33) and the fourth groove (34) are all located on the same plane.

4. A quick-change clamp according to claim 3, characterized in that the recess (3) further comprises a fifth recess (35) and a sixth recess (36) for receiving the protruding formations on the workpiece to be machined adapted to the fifth recess (35) and the sixth recess (36); the fifth groove (35) communicates with the first groove (31), and the sixth groove (36) communicates with the third groove (33); the bottoms of the fifth groove (35) and the sixth groove (36) are located on the same plane, and in the vertical direction, the bottom of the fifth groove (35) is located above the bottom of the first groove (31).

5. The quick-change clamp according to claim 4, characterized in that the recess (3) further comprises a seventh recess (37) and an eighth recess (38) for receiving the protruding formations on the workpiece to be machined adapted to the seventh recess (37) and the eighth recess (38); the seventh groove (37) and the eighth groove (38) are respectively communicated with the fifth groove (35) and the sixth groove (36); the bottoms of the seventh groove (37) and the eighth groove (38) are located on the same plane, and in the vertical direction, the bottom of the seventh groove (37) is located above the bottom of the fifth groove (35).

6. The quick-change clamp according to any one of claims 1 to 5, characterized in that a plurality of fixing holes (13) are further provided on the base plate (11) and/or the retaining plate (12), the pressure plate assembly comprises a connecting piece (22) and a pressure plate (21), and the fixing holes (13) cooperate with the connecting piece (22) to mount the pressure plate (21) on the base plate (11) or the retaining plate (12).

7. The quick-change clamp according to any one of claims 1 to 5, characterized in that the locating plate (12) comprises a fixedly connected locating plate body (121) and a locating pin (122); the positioning pin (122) is of a columnar structure, and the positioning pin (122) is convexly arranged on one side, deviating from the bottom plate (11), of the positioning plate body (121).

8. The quick-change holder according to claim 7, characterized in that the positioning pin (122) comprises a fixedly connected positioning part (1222) and a guide part (1221); the guide part (1221) is in a cone frustum shape and is provided with a large end and a small end; one end of the positioning part (1222) is connected with the positioning plate body (121), and the other end is connected with the large end.

9. The quick-change clamp according to claim 7, wherein the positioning plate is provided with a sunken groove (123), the positioning pin (122) is arranged in the sunken groove (123), and the positioning pin (122) is coaxially arranged with the sunken groove (123).

10. The quick-change clamp according to any one of claims 1 to 5, wherein the bottom plate (11) comprises a bottom plate body (111) and two hanging rings (112) arranged on the bottom plate body (111), the hanging rings (112) are positioned on one side of the bottom plate body (111) facing the positioning plate (12), and the two hanging rings (112) are arranged diagonally on the bottom plate body (111).