TWM606686U - Holder with replaceable and heteromorphic processing jig - Google Patents

Abstract

A detachable clamping device for special-shaped processing jigs is suitable for clamping a workpiece. The clamping device of the detachable special-shaped processing jig includes a chuck, a plurality of clamping jaws, and at least one jig. The chuck has a ring shape around an axis. The clamping jaws are arranged on the chuck at intervals around the axis, and can be controlled to approach and move away from the axis along the radial direction of the axis. Each jaw includes an abutting end adjacent to the axis. The abutting end is used for abutting the workpiece, and at least one of the clamping jaws further includes a fixing part arranged on the abutting end. The jig is detachably fixed to the fixing part, and the jig includes a mounting part detachably fixed to the fixing part, and an abutting part connected to the mounting part and adjacent to the axis. The abutting part Used to lean against the workpiece. With the detachable and replaceable jig, the utility model can firmly clamp special-shaped workpieces.

Description

Clamping device for detachable and replaceable special-shaped processing jig

The new model relates to a clamping device, in particular to a clamping device capable of dismounting and replacing special-shaped processing jigs.

Nowadays, clamping devices used in processing equipment (such as lathes, milling machines or wire cutting, etc.) can firmly clamp cylindrical workpieces with symmetrical shapes such as round or square cross-sections for processing. However, the existing clamping devices When clamping asymmetrical or irregularly shaped special-shaped workpieces, the feeding step is cumbersome, and improper clamping is easy to occur, or a special clamping device is required, which increases the manufacturing cost.

Therefore, the object of the present invention is to provide a detachable and replaceable clamping device for special-shaped processing jigs that can stably clamp special-shaped workpieces and reduce manufacturing costs.

Therefore, the clamping device of the new detachable special-shaped processing jig is suitable for clamping a workpiece. The clamping device of the detachable special-shaped processing jig includes a chuck, a plurality of clamping jaws, and at least one jig. The chuck has a ring shape around an axis. The clamping jaws are arranged on the chuck at intervals around the axis, and can be controlled to approach and move away from the axis along the radial direction of the axis. Each jaw includes an abutting end adjacent to the axis. The abutting end is used for abutting the workpiece, and at least one of the clamping jaws further includes a fixing part arranged on the abutting end. The jig is detachably fixed to the fixing part, and the jig includes a mounting part detachably fixed to the fixing part, and an abutting part connected to the mounting part and adjacent to the axis. The abutting part Used to lean against the workpiece.

The effect of the new model is that the jig can be detachably arranged on the clamping jaws, which can help to firmly clamp special-shaped workpieces, and can clamp special-shaped workpieces and general workpieces, which improves the convenience of use and reduces the manufacturing cost.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are represented by the same numbers.

1 and 3, a first embodiment of the clamping device of the new type of removable special-shaped processing jig includes a base 1, a chuck 2, a plurality of clamping jaws 3, a plurality of jigs 4, a fixing part Group 5, a rotating seat 6, and a driving unit 7.

The chuck 2 is annular around an axis L, and is disposed on the base 1.

2 and 3, the clamping jaws 3 are arranged on the chuck 2 at equal intervals around the axis L, and can be controlled to approach and move away from the axis L along the radial direction of the axis L. Each clamping jaw 3 includes a controllable linkage end 31, an abutting end 32 connected to the linkage end 31 and adjacent to the axis L, and a fixing portion 33 disposed on the abutting end 32. The linkage end 31 has a guiding groove 311, and the abutting end 32 is used for abutting the workpiece 100 and has an abutting surface 321 facing the axis L. In this embodiment, the fixing portion 33 is three screw holes formed on the abutting surface 321.

The fixtures 4 are detachably fixed to the clamping jaws 3, and each fixture 4 includes a mounting portion 41 detachably fixed to the fixing portions 33, and a mounting portion 41 connected to the mounting portion 41 and adjacent to the The abutment portion 42 of the axis L. The mounting portion 41 abuts against the corresponding abutting end 32 of the clamping jaw 3 along the radial direction of the axis L, and the abutting portion 42 is used for abutting against the workpiece 100.

In this embodiment, the shapes of the jigs 4 are the same. The mounting portion 41 of each jig 4 has three through holes 411 corresponding to the screw holes, and the abutting portion 42 is formed on the The mounting portion 41 is adjacent to the surface on one side of the axis L and has a multi-step arc shape to match the surface shape of the workpiece 100. The abutting portion 42 has three openings 421 communicating with the through holes 411.

The fixing member set 5 includes a plurality of fixing members 51 for detachably fixing the mounting portion 41 to the fixing portion 33 of the clamping jaw 3. In this embodiment, each fixing member 51 is a bolt and passes through a corresponding The through hole 411 of the jig 4 is screw-locked to the corresponding screw hole of the clamping jaw 3.

In this embodiment, each jig 4 uses the openings 421 of the abutting portion 42 for the fixing members 51 to pass through, so as not to affect the abutting portion 42 tightly abutting the jig 4 In this embodiment, the through holes 411 are counterbores. It should be noted that the shape of the abutting portion 42 of the jigs 4 can be designed according to the shape of the workpiece 100 to be clamped, and is not limited to this embodiment.

In addition, in other embodiments, the fixing portion 33 of each clamping jaw 3 may also be one or more screw holes, and each jig 4 may have one or more through holes 411, and the fixing member The number of 51 matches the through holes 411, and can be one or more than one. In addition, the fixing portion 33 of each clamping jaw 3 and the mounting portion 41 of each jig 4 may also be fixed in other forms, for example, the fixing portion 33 and the mounting portion 41 have corresponding engaging structures, or The fixing member 51 is directly formed on the mounting portion 41 and can be engaged with the fixing portion 33, and is not limited to this embodiment.

The rotating seat 6 is cylindrical around the axis L, and is fixed to the chuck 2 along the extending direction of the axis L.

The driving unit 7 includes two pressure cylinders 71, a push ring 72 set on the rotating seat 6 and connected to the pressure cylinder 71, and four guide rods 73 provided on the push ring 72 along the extending direction of the axis L, Each guide rod 73 has an end 731 away from the push ring 72. The end 731 is connected to the linkage end 31 of the respective clamping jaw 3, and forms a guide that abuts the guide groove 311 of the linkage end 31 Slope 732.

Each pressure cylinder 71 has a push rod 711, and an end 731 of the push rod 711 clamps the push ring 72. When the pressure cylinder 71 is controlled to drive the push rod 711 to move along the extension direction of the axis L, the end 731 of the push rod 711 will drive the push ring 72 to communicate with the guide rods 73 along the extension direction of the axis L The guide slant surface 732 of each guide rod 73 pushes against the guide groove 311 of the respective gripper 3, thereby driving each gripper 3 to move along the radial direction of the axis L to clamp and Relax the workpiece 100.

It should be noted that in other implementation aspects, the movement of the clamping jaw 3 can also be controlled manually or in other electric manners, and is not limited to this embodiment.

When the jigs 4 are not assembled to the clamping jaws 3, in this embodiment, the clamping jaws 3 can clamp the workpiece 100 (not shown in the figure) in a general and regular shape, and when the jigs 4 are fixed After the clamping jaws 3, this embodiment can firmly clamp the cylindrical workpiece 100 with multiple steps on the surface (as shown in FIGS. 1 to 3). Therefore, this embodiment can not only clamp the special-shaped workpieces firmly, but also only need to lock or disassemble each jig 4 to the corresponding clamping jaw 3 to clamp general and special-shaped workpieces, thereby improving the convenience of operation. And can reduce manufacturing costs.

In other embodiments, according to the shape of the workpiece 100 to be clamped, there may be only one or more jigs 4 and a plurality of clamping jaws 3, and in addition, there may be only one clamping jaw 3 Or more than one clamping jaw 3 has the fixing portion 33, that is, only part of the clamping jaw 3 can be installed on the fixture 4.

Referring to Fig. 4, a second embodiment of a clamping device for a new type of removable special-shaped processing jig is similar to the first embodiment, and the difference lies in:

The number of the jigs 4a, 4b, 4c is three, and the appearance of the jigs 4a, 4b, 4c is different, therefore, the jigs 4a, 4b, 4c are respectively the first The names of tool 4a, second tool 4b, and third tool 4c are for convenience of explanation.

The abutting portion 42a of the first jig 4a is formed on the surface of the mounting portion 41a adjacent to the axis L, and is flat, and is formed with a plurality of through holes 411a communicating with the mounting portion 41a Opening 421a. The abutting portion 42b of the second jig 4b has a hollow rectangle with an outline perpendicular to the axis L, and its outer contour is larger than its own mounting portion 41b, which is adjacent to the mounting portion 41b A plurality of openings 421b communicating with the through holes 411b of the mounting portion 41b are formed on the inner surface. The mounting portion 41c of the third jig 4c is in the shape of a flat plate, and the third jig 4c is perpendicular to the outer contour of the axis L, and the mounting portion 41c and the abutting portion 42c together form a hollow rectangle, and The shape of the third jig 4c is smaller than that of the second jig 4b, and the abutting portion 42c is not provided with an opening 421c communicating with the equal through hole 411c of the mounting portion 41c.

The first jig 4a, the second jig 4b, and the third jig 4c can cooperate with each other to firmly clamp a thin-plate-shaped workpiece 100 that is perpendicular to the axis L and has an L-shaped appearance. In addition, since the abutting portion 42b and the abutting portion 42c of the second jig 4b and the third jig 4c are hollow, the weight can be reduced to avoid bending deformation.

According to the first embodiment and the second embodiment, it can be seen that the shape of the abutting portion 42 of the jigs 4 can be designed according to the shape of the workpiece 100 to be clamped, and the abutting portion 42 The openings 421 connecting the through holes 411 may not be provided, such as the third jig 4c of the second embodiment. In addition, the through holes 411 may not be counterbores. For example, in the second embodiment, the first The through holes 411c of the three jig 4c can also be changed to straight holes with a constant diameter, and the heads of the corresponding fixing members 51 are located outside and bear on the surface of the mounting portion 41c.

In summary, the clamping device of the new type detachable and replaceable special-shaped processing jig, by means of the jig 4 detachably arranged on the clamping jaw 3, facilitates the stable clamping of special-shaped workpieces. In addition, it can be used for clamping special-shaped workpieces. Workpieces and general work pieces are not only convenient to use, but also can reduce manufacturing costs, so it can indeed achieve the purpose of new cost.

However, the above-mentioned are only examples of the present model. When the scope of implementation of the present model cannot be limited by this, all simple equivalent changes and modifications made in accordance with the patent scope of the present model application and the contents of the patent specification still belong to This new patent covers the scope.

1: base 2: chuck 3: gripper 31: Linked end 311: guide slot 32: butt end 321: abutment surface 33: Fixed part 4: Fixture 41: Installation Department 411: Through Hole 42: top 421: open 4a: The first fixture 41a: Installation Department 411a: Through hole 42a: Reaching part 421a: opening 4b: The second fixture 41b: Installation Department 411b: Through hole 42b: Pushing part 421b: opening 4c: The third fixture 41c: Installation Department 411c: Through hole 42c: Pushing part 5: Fixed parts group 51: fixed parts 6: Rotating seat 7: Drive unit 71: Cylinder 711: putter 72: Push ring 73: guide rod 731: end 732: guide slope L: axis 100: Workpiece

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, among which: Figure 1 is a perspective view of a first embodiment of the clamping device of the new type of removable special-shaped processing jig; Figure 2 is a three-dimensional partial exploded view of the first embodiment; Figure 3 is a cross-sectional view of the first embodiment; Figure 4 is a partial enlarged view of Figure 3; and Fig. 5 is a front view of a first embodiment of the clamping device of the new type of removable special-shaped processing jig.

1: base

2: chuck

3: gripper

31: Linked end

311: guide slot

32: butt end

321: abutment surface

33: Fixed part

4: Fixture

41: Installation Department

411: Through Hole

42: top

421: open

5: Fixed parts group

51: fixed parts

L: axis

100: Workpiece

Claims (10)

A detachable clamping device for special-shaped processing jigs is suitable for clamping a workpiece. The clamping device for detachable special-shaped processing jigs includes: A chuck, ring-shaped around an axis; A plurality of clamping jaws are arranged on the chuck at intervals around the axis, and can be controlled to approach and move away from the axis along the radial direction of the axis. Each jaw includes an abutting end adjacent to the axis. The abutting end is used to abut the workpiece, wherein at least one of the clamping jaws further includes a fixing portion provided on the abutting end; and At least one jig is detachably fixed to the fixing part, and the jig includes a mounting part detachably fixed to the fixing part, and an abutting part connected to the mounting part and adjacent to the axis. The top The abutment part is used to abut the workpiece. The clamping device for a removable special-shaped processing jig as described in claim 1, further comprising a fixing part group, the fixing part group comprising at least one fixing part for detachably fixing the mounting part to the clamping jaw The fixings. The clamping device for a removable special-shaped processing jig according to claim 2, wherein the fixing portion of the clamping jaw is at least one screw hole formed on the abutting end, and the mounting portion of the jig has at least one Corresponding to the through hole of the screw hole, the fixing member is a bolt, which passes through the through hole and is screwed to the fixing part. The clamping device for a removable special-shaped processing jig according to claim 3, wherein the clamping claw with the fixing portion has a contact end with a radial direction for the mounting portion of the jig along the axis Abutting abutting surface, the fixing part is formed on the abutting surface. The clamping device for a removable special-shaped processing jig according to claim 3, wherein the through hole of the jig is a countersunk hole. The clamping device for a removable special-shaped processing jig according to claim 1, wherein the abutting portion of the jig is formed on a surface of the mounting portion adjacent to the axis. The clamping device for a removable special-shaped processing jig according to claim 1, wherein the abutting portion of the jig is hollow. The clamping device for detachable special-shaped processing jigs as described in claim 1 includes a plurality of jigs, and the abutting part of each clamping jaw has a fixed part, and the jigs are detachably installed in the Fixed part. The clamping device for a removable special-shaped processing jig according to claim 1, wherein the clamping jaws are arranged at equal intervals around the axis. The clamping device for the removable special-shaped processing jig as described in claim 1, further comprising a base for the chuck to be set, and a controllable drive to move the clamping jaws along the radial direction of the axis Drive unit.

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