CN216990925U

CN216990925U - Workpiece clamp

Info

Publication number: CN216990925U
Application number: CN202220463538.6U
Authority: CN
Inventors: 关现辉; 宿俊强; 杨志勇; 王永富
Original assignee: Gu'an Hanfei Sike Precision Machinery Manufacturing Co ltd
Current assignee: Gu'an Hanfei Sike Precision Machinery Manufacturing Co ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-07-19
Anticipated expiration: 2032-03-03

Abstract

The application provides a workpiece clamp, wherein a workpiece comprises a main plate extending along a first direction, the main plate is provided with a first end and a second end, the first end is provided with a first extending part, and the second end is provided with a second extending part and a third extending part which are distributed along a second direction; the jig includes: the mounting piece is provided with a mounting surface, and the main board is in contact with the mounting surface; the first fixing mechanism is arranged on the mounting piece and used for limiting the main board to move along a third direction; the second fixing mechanism is arranged on the mounting piece and used for limiting the first extension part to move along a second direction; the third fixing mechanism is arranged on the mounting piece and used for limiting the third extending part to move along the second direction; the limiting piece is arranged on the mounting piece and used for limiting the main board to move along a first direction; the first direction, the second direction and the third direction are perpendicular to each other.

Description

Workpiece clamp

Technical Field

The application relates to the technical field of clamps, in particular to a workpiece clamp.

Background

The existing machine tool part support plate is mainly used for a vertical machining center tool magazine; when the part is processed, the support plate needs to be punched and milled. But among the actual operation process, the mounting panel need use a plurality of anchor clamps to carry out the clamping, and the mounting panel just can be firm carry out follow-up processing like this, but the dismouting of a plurality of anchor clamps not only increases manufacturing procedure, influences production efficiency again. A workpiece holder for machining a carrier plate is provided.

Disclosure of Invention

The present application is directed to the above problems and provides a work holder.

The technical scheme of the application provides a workpiece clamp, which comprises a main plate extending along a first direction, wherein the main plate is provided with a first end and a second end, the first end is provided with a first extending part, and the second end is provided with a second extending part and a third extending part which are distributed along a second direction; the jig includes:

a mounting member; the mounting piece is provided with a mounting surface, and the main board is in contact with the mounting surface;

the first fixing mechanism is arranged on the mounting piece and used for limiting the main board to move along a third direction;

the second fixing mechanism is arranged on the mounting piece and is used for limiting the first extending part to move along a second direction;

the third fixing mechanism is arranged on the mounting piece and is used for limiting the third extending part to move along a second direction;

the limiting piece is arranged on the mounting piece and used for limiting the main board to move along a first direction;

the first direction, the second direction and the third direction are perpendicular to each other.

According to the technical scheme provided by some embodiments of the application, the number of the first fixing mechanisms is three, and the first fixing mechanism comprises a first support and an adjusting assembly; one end of the first support member is arranged on the mounting member; the adjusting component comprises a connecting column and a pressing plate, one end of the connecting column is arranged on the mounting part, and the other end of the connecting column is rotatably connected with the pressing plate; the pressure plate and the free end of the first support form a space for the main plate.

According to the technical scheme provided by some embodiments of the present application, the second fixing mechanism includes a first fixing block and a first screw rod; the first fixing block is arranged on the mounting piece; the first screw thread penetrates through the first fixing block, one end of the first screw is connected with the first nut, and the other end of the first screw is used for abutting against the first extending portion.

According to the technical scheme provided by some embodiments of the present application, the third fixing mechanism includes a second fixing block and a second screw rod; the second fixing block is mounted on the mounting piece; the second screw penetrates through the second fixing block in a threaded mode, the second screw is connected with a second nut, and the other end of the second screw is used for being abutted to the third extending portion.

According to an aspect of some embodiments of the present disclosure, a work holder further includes a fourth fixing mechanism disposed on the mounting member, the fourth fixing mechanism being configured to limit movement of the main plate in the second direction; the fourth fixing mechanism comprises a third fixing block and a third screw rod; the third fixing block is arranged on the mounting piece; the third screw penetrates through the third fixing block in a threaded manner, the third screw is connected with a third nut, and the other end of the third screw is abutted against the mainboard.

According to an aspect provided by some embodiments of the present application, a work holder further includes a fifth securing mechanism; the fifth fixing mechanism is arranged on the mounting piece; the fifth fixing mechanism is used for limiting the second extending part to move along the second direction; the fifth fixing mechanism comprises a fourth fixing block and a fourth screw rod; the fourth fixing block is arranged on the mounting piece; the fourth screw penetrates through the fourth fixing block in a threaded mode, the fourth screw is connected with a fourth nut, and the other end of the fourth screw is used for being abutted to the second extending portion.

According to an aspect provided by some embodiments of the present application, a work holder further includes a sixth securing mechanism; the sixth fixing mechanism is arranged on the mounting piece; the sixth fixing mechanism is used for limiting the second extending part and the third extending part to move along a second direction; the sixth fixing mechanism comprises a fifth fixing block, a fifth screw and a sixth screw; the fifth fixing block is of a U-shaped structure and comprises a first arm, a second arm and a connecting arm; the connecting arm is arranged on the mounting part; the fifth screw penetrates through the first arm in a threaded manner, one end of the fifth screw is connected with a fifth nut, and the other end of the fifth screw is used for abutting against the second extending part; the sixth screw thread penetrates through the first arm, the sixth screw is connected with a sixth nut, and the other end of the sixth screw is used for abutting against the third extending part.

According to an aspect of some embodiments of the present disclosure, a work holder further includes a second support member, one end of the second support member being disposed on the mounting member; the other end is used for supporting the main board along the third direction.

According to an aspect of some embodiments of the present disclosure, a work holder further includes a base, and the mounting member is fixedly disposed on the base.

Compared with the prior art, the beneficial effect of this application: a workpiece clamp comprises a main plate, wherein one end of the main plate is provided with a first extending part, and the other end of the main plate is provided with a second extending part and a third extending part; the mounting piece is provided with a first fixing mechanism, a second fixing mechanism, a third fixing mechanism and a limiting piece, and the first fixing mechanism is used for limiting the main board to move along a third direction; the second fixing mechanism is used for limiting the first extension part to move along the second direction; the third fixing mechanism is used for limiting the third extending part to move along the second direction; the limiting piece is used for limiting the main board to move along a first direction; the first direction, the second direction and the third direction are perpendicular to each other.

When the fixture is used, a workpiece is placed on the installation part, the first fixing mechanism, the second fixing mechanism, the third fixing mechanism and the limiting part can limit the position of the workpiece in the first direction, the second direction and the third direction, and the workpiece can be stably clamped on the fixture. Therefore, in the process of machining the workpiece, the clamping by using a plurality of clamps is avoided, the machining procedures are reduced, and the production efficiency is improved.

Drawings

Fig. 1 is a structural schematic diagram of a state in which a workpiece is clamped by a workpiece clamp according to an embodiment of the present application;

fig. 2 is a rear view structural schematic diagram of a state in which a workpiece is clamped by a workpiece clamp according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a workpiece holder according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of a first securing mechanism;

FIG. 5 is a schematic view of the second and third securing mechanisms;

FIG. 6 is a schematic structural view of a fourth fixing mechanism;

FIG. 7 is a schematic structural view of a fifth fixing mechanism;

FIG. 8 is a schematic structural view of a sixth securing mechanism;

fig. 9 is a schematic structural view of a workpiece.

The text labels in the figures are represented as:

10. a base;

20. a mounting member; 21. a connecting plate; 22. a second support member;

30. a workpiece; 31. a main board; 32. a first extension portion; 33. a second extension portion; 34. a third extension portion;

40. a first fixing mechanism; 41. connecting columns; 42. pressing a plate; 43. a first support member;

50. a second fixing mechanism; 51. a first fixed block; 52. a first screw; 53. a first nut; 54. A third fixing mechanism;

60. a limiting member;

70. a fourth fixing mechanism; 71. a third fixed block; 72. a third screw; 73. a third nut;

80. a fifth fixing mechanism; 81. a fourth fixed block; 82. a fourth screw; 83. a fourth nut; 84; a sixth fixing mechanism; 85. a fifth fixed block; 86. a fifth screw; 87. a fifth nut; 88. a sixth screw; 89. a sixth nut;

90. and a seventh securing mechanism.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Referring to fig. 1, fig. 3 and fig. 9, the present embodiment provides a workpiece fixture, in which a workpiece 30 includes a main plate 31 extending along a third direction, the main plate 31 has a first end and a second end, the first end is provided with a first extending portion 32, and the second end is provided with a second extending portion 33 and a third extending portion 34 distributed along the second direction; this work holder includes:

a mounting member 20, the mounting member 20 having a mounting surface, the main board 31 being in contact with the mounting surface;

a first fixing mechanism 40 disposed on the mounting member 20, the first fixing mechanism 40 being configured to limit the main plate 31 from moving in the third direction;

a second fixing mechanism 50 provided on the mount 20, the second fixing mechanism (50) for restricting the first extension 32 from moving in the second direction;

a third fixing mechanism provided on the mounting member 20, the third fixing mechanism 54 being for restricting the third extension 34 from moving in the second direction;

the limiting piece 60 is arranged on the mounting piece 20, and the limiting piece 60 is used for limiting the main board 31 to move along the first direction;

Specifically, as shown in fig. 9, the workpiece 30 is a supporting board, the supporting board includes a main board 31, the main board 31 extends along a length direction, one end of the main board 31 has a first extending portion 32, and the other end of the main board 31 has a second extending portion 33 and a third extending portion 34 distributed along a height direction of the main board 31.

In the present embodiment, the mounting plate 20 has a mounting surface to which the bracket plate contacts, and the first fixing mechanism 40, the second fixing mechanism 50, the third fixing mechanism 54, and the limiting member 60 are provided on the mounting member 20, and when the bracket plate is placed on the mounting member 20, the first fixing mechanism 40 is used to prevent the main plate 31 from moving in the third direction; the second fixing mechanism 50 is used for limiting the bracket plate to move along the second direction, the third fixing mechanism 54 is used for limiting the bracket plate to move along the second direction, and the limiting piece 60 is used for limiting the bracket plate to move along the first direction;

the second direction here is a vertical direction, the first direction is a horizontal direction, and the third direction is a direction perpendicular to the vertical and horizontal directions.

In use, when a workpiece is placed on the mounting member 20, the first fixing mechanism 40, the second fixing mechanism 50, the third fixing mechanism 51 and the limiting member 60 can limit the position of the workpiece 30 in the first direction, the second direction and the third direction, and the workpiece 30 can be stably clamped on the fixture. Therefore, in the process of processing the workpiece, a plurality of clamps are not used for clamping, the processing procedures are reduced, and the production efficiency is improved.

In some embodiments, as shown in fig. 4, the first securing mechanism 40 includes a first support 43 and an adjustment assembly; one end of the first support 43 is provided on the mounting member 20; the other end is used for abutting the main board 30; the adjusting component comprises a connecting column 41 and a pressing plate 42, the connecting column 41 is arranged on the mounting part 20, and the pressing plate 42 is rotatably arranged on the connecting column 41; the pressure plate 42 forms a space for the main plate 31 with the free end of the first support.

Specifically, the first fixing mechanism 40 has three, one of which is disposed above the main plate 31 and on the mounting part 20 near the first extension part 32, and the other two of which are disposed below the main plate 31; the first fixing mechanism 40 comprises a first supporting piece 43 and an adjusting component, wherein the first supporting piece 43 is a moving steel ball screw, and one end of the first supporting piece is vertically arranged on the mounting piece 20; when the support plate is placed on the mounting part 20, one end of the moving steel ball screw, which is far away from the mounting part 20, is abutted to the support plate to play a supporting role. Adjusting part including spliced pole 41 and clamp plate 42, spliced pole 41 sets up on installed part 20, and the rotatable setting of depression bar 42 is on spliced pole 41, and clamp plate 42 is used for with mounting panel looks butt, through clamp plate 42, can realize that clamp plate 42 blocks the mounting panel and prevents that the mounting panel from dropping, also can be used to dismantle the mounting panel.

When the support plate is used, the pressing plate 42 and the first support piece 43 are matched for use, a space for clamping the main plate 31 is formed between the pressing plate and one end of the first support piece, one side of the support plate is abutted against the first support piece 43, and the other side of the support plate is attached to the support plate through the pressing plate 42.

The stopper 60 is a projection provided on the mounting member 20, and restricts the movement of the main plate 31 in the horizontal rightward direction.

In some embodiments, as shown in fig. 5, the second fixing mechanism 50 includes a first fixing block 51 and a first screw 52; the first fixing block 51 is mounted on the mounting member 20; the first screw 52 penetrates through the first fixing block 51 in a threaded manner, one end of the first screw 51 is connected with the first nut 53, and the other end of the first screw 52 is used for abutting against the first extending portion 32.

Specifically, the second fixing mechanism 50 is provided at a position close to the first extension 32 for restricting the downward movement of the first extension 32; the second fixing mechanism 50 includes a first fixing block 51 and a first screw 52; the first fixed block is of an L-shaped structure and comprises a vertical part and a transverse part; the transverse part is provided with a connecting hole, the transverse part is arranged on the mounting part 20 through the connecting hole, the thread of the first screw 52 penetrates through the vertical part, one end of the first screw 52 is connected with the first nut 53, and the other end of the first screw 52 is used for abutting against the support plate; by rotating the first screw 52, the first screw 52 is brought into abutment with the holder plate, and the position of the holder plate is restricted.

In some embodiments, the third securing mechanism 54 includes a second securing block and a second screw; the second fixed block is mounted on the mounting member 20; one end of the second screw rod penetrates through the second fixing block and is connected with the second nut, and the other end of the second screw rod is used for abutting against the third extending portion 34.

Specifically, the third fixing mechanism 54 and the second fixing mechanism 50 have the same structure, and the third fixing mechanism 54 is disposed near the third extension 34.

In some embodiments, as shown in fig. 6, the jig further includes a fourth fixing mechanism 70, the fourth fixing mechanism being provided on the mount 20, the fourth fixing mechanism 70 being configured to restrict the main plate 31 from moving upward in the vertical direction; the fourth fixing mechanism 70 includes a third fixing block 71 and a third screw 72; the third fixing block 71 is arranged on the mounting piece; the third screw 72 penetrates through the third fixing block 71 in a threaded manner, the third screw 72 is connected with a third nut 73, and the other end of the third screw 72 is used for abutting against the main plate 31.

Specifically, the fourth fixing mechanism 70 is disposed above the rack plate and on the same side as the first fixing mechanism 40; the fourth fixing mechanism 70 is used to restrict the main plate 31 from moving upward in the vertical direction; the fourth fixing mechanism 70 comprises a third fixing block 71 and a third screw 72; the third fixing block 72 comprises a bottom plate, the upper end of the bottom plate is provided with a top block, the bottom plate is provided with a connecting through hole, and the bottom plate is installed on the installation part 20 through the connecting through hole; one end of the third screw 72 penetrates through the top block, one end of the third screw 72 is connected with the third nut 73, and the other end of the third screw 72 is used for abutting against the main plate 31; by rotating the third screw 72, the third screw 72 is brought into abutment with the holder plate, and the position of the holder plate is restricted.

In some implementations, as shown in fig. 7, the clamp further includes a fifth securing mechanism 80 disposed on the mount 20; the fifth fixing mechanism 80 is used for limiting the second extending part 33 to move along the first direction; the fifth fixing mechanism 80 includes a fourth fixing block 81 and a fourth screw 82; the fourth fixing block 81 is provided on the mounting member 20; the fourth screw 82 penetrates through the fourth fixing block 81 in a threaded manner, one end of the fourth screw 82 is connected with the fourth nut 83, and the other end of the fourth screw 82 is used for abutting against the second extending portion 33.

The fourth fixing block 81 here has the same structure as the second fixing mechanism 50 and the third fixing mechanism 54.

In some implementations, as shown in fig. 9, the clamp further includes a sixth securing mechanism 84; a sixth securing mechanism 84 is provided on the mount 20; the sixth fixing mechanism 84 is used for limiting the second extension 33 and the third extension 34 to move along the second direction; the sixth fixing mechanism 84 includes a fifth fixing block 85, a fifth screw 86, and a sixth screw 88;

the fifth fixing block 85 is of a U-shaped structure, and the fifth fixing block 85 includes a first arm, a second arm, and a connecting arm; the connecting arms are provided on the mounting member 20; a fifth screw 86 penetrates through the first arm in a threaded manner, one end of the fifth screw 86 is connected with a fifth nut 87, and the other end of the fifth screw 86 is used for abutting against the second extension part 33; the sixth screw 88 is threaded through the first arm, the sixth screw 88 is connected to a sixth nut 89, and the other end of the sixth screw 88 is used for abutting against the third extending portion 34.

Specifically, the clamp further comprises a sixth fixing mechanism 84, the sixth fixing mechanism 84 is arranged on the mounting part 20, and the sixth fixing mechanism 84 is used for limiting the second extension part 33 and the third extension part 34 to move along the second direction; the sixth fixing mechanism 84 includes a fifth fixing block 85, a fifth screw 86 and a sixth screw 88, and the fifth fixing block 85 is of a U-shaped structure; the fifth fixing block 85 includes a first arm, a second arm, and a connecting arm; the connecting arms are provided on the mounting member 20; the fifth screw 86 penetrates through the first arm in a threaded manner, one end of the fifth screw 86 is connected with a fifth nut 87, and the other end of the fifth screw 86 is used for abutting against the second extension part 33; the sixth screw 88 is threaded through the first arm, the sixth screw 88 is connected to a sixth nut 89, and the other end of the sixth screw 88 is used for abutting against the third extending portion 34.

The clamping and fixing of the bracket plate are adjusted by adjusting the positions of the sixth screw 88 and the fifth screw on the fifth fixing block 85.

In some embodiments, a seventh fixing mechanism 90 is further included, and the seventh fixing mechanism 90 is configured to limit the main plate 31 from moving in the first direction.

Specifically, the seventh securing mechanism 90 is similar in construction to the first securing mechanism 40 and is located on the mount 20 adjacent the fifth securing mechanism.

In some implementations, the clamp further includes a second support 22, the second support 22 being disposed at one end on the mount 20; and the other end for supporting the workpiece 30 in the third direction.

Specifically, the second support 22 is a seventh screw provided on the mounting member 20 for supporting one side of the bracket plate close to the mounting member 20.

In some embodiments, the fixture further includes a base 10, and the mounting member 20 is fixedly disposed on the base 10.

Specifically, the fixture further comprises a base 10, and a mounting member 20 is vertically fixed on the base 10, wherein the base 10 and the mounting member 20 may be an integrally formed structure, and the base 10 is configured to ensure that the mounting member 20 is stably placed on a horizontal plane.

In some embodiments, as shown in fig. 2, the clamp further includes a connecting plate 21, and the side of the mounting member 20 away from the support plate is connected to the base 10 through the connecting plate 21.

Specifically, the clamp further comprises a connecting plate 21, and two ends of the connecting plate 21 are respectively vertically connected with the mounting part 20 and the base 10, so that the rigidity and the stability of the mounting part 20 fixed on the base 10 are improved.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A workpiece holder, the workpiece (30) comprising a main plate (31) extending in a first direction, the main plate (31) having a first end provided with a first extension (32) and a second end provided with a second extension (33) and a third extension (34) distributed in a second direction;

characterized in that, the anchor clamps include:

a mounting (20), said mounting (20) having a mounting face, said main board (31) being in contact with said mounting face;

a first fixing mechanism (40) provided on the mount (20), the first fixing mechanism (40) being for restricting movement of the main plate (31) in a third direction;

a second securing mechanism (50) disposed on the mount (20), the second securing mechanism (50) for limiting movement of the first extension (32) in the second direction;

a third securing mechanism (54) disposed on the mount (20), the third securing mechanism (54) for limiting movement of the third extension (34) in the second direction;

the limiting piece (60) is arranged on the mounting piece (20), and the limiting piece (60) is used for limiting the main plate (31) to move along the first direction;

2. A workpiece holder as in claim 1, characterised in that said first fixing means (40) comprise a first support (43) and an adjustment assembly;

one end of the first support (43) is arranged on the mounting part (20);

the adjusting assembly comprises a connecting column (41) and a pressing plate (42), one end of the connecting column (41) is arranged on the mounting part (20), and the other end of the connecting column (41) is rotatably connected with the pressing plate (42);

the pressing plate (42) and the free end of the first support form a space for clamping the main plate (31).

3. A workpiece holder as in claim 1, characterised in that said second fixing means (50) comprise a first fixed block (51) and a first threaded rod (52);

the first fixing block (51) is arranged on the mounting part (20);

the first screw (52) penetrates through the first fixing block (51) in a threaded mode, one end of the first screw is connected with a first nut (53), and the other end of the first screw (52) is used for being abutted to the first extending portion (32).

4. A workpiece holder as in claim 1, characterised in that said third fixing means (54) comprise a second fixed block and a second screw;

the second fixed block is arranged on the mounting piece (20);

the second screw penetrates through the second fixing block in a threaded mode, the second screw is connected with a second nut, and the other end of the second screw is used for being abutted to the third extending portion (34).

5. A workpiece holder as claimed in claim 1, characterised by further comprising a fourth fixing mechanism (70), said fourth fixing mechanism (70) being provided on said mount (20), said fourth fixing mechanism (70) being adapted to restrict movement of said main plate (31) in said second direction;

the fourth fixing mechanism (70) comprises a third fixing block (71) and a third screw (72);

the third fixing block (71) is arranged on the mounting part (20);

the third screw (72) penetrates through the third fixing block (71) in a threaded manner, the third screw (72) is connected with a third nut (73), and the other end of the third screw (72) is used for being abutted to the main plate (31).

6. A workpiece holder as claimed in claim 5, characterised by a fifth fixing mechanism (80); the fifth fixing mechanism (80) is arranged on the mounting part (20); the fifth fixing mechanism (80) is used for limiting the second extending part (33) to move along the second direction;

the fifth fixing mechanism (80) comprises a fourth fixing block (81) and a fourth screw (82);

the fourth fixing block (81) is arranged on the mounting part (20);

the fourth screw (82) penetrates through the fourth fixing block (81) in a threaded mode, the fourth screw (82) is connected with a fourth nut (83), and the other end of the fourth screw (82) is used for being abutted to the second extending portion (33).

7. A workpiece holder as claimed in claim 6, characterised in that it further comprises a sixth securing means (84); the sixth securing mechanism (84) is disposed on the mount (20); the sixth fixing mechanism (84) is used for limiting the second extension part (33) and the third extension part (34) to move along the second direction.

8. A workpiece holder as claimed in claim 7, characterised in that the sixth fixing mechanism (84) comprises a fifth fixing block (85), a fifth screw (86) and a sixth screw (88);

the fifth fixing block (85) is of a U-shaped structure, and the fifth fixing block (85) comprises a first arm, a second arm and a connecting arm; the connecting arm is arranged on the mounting part (20);

the fifth screw (86) penetrates through the first arm in a threaded manner, one end of the fifth screw (86) is connected with a fifth nut (87), and the other end of the fifth screw (86) is used for abutting against the second extending part (33);

the sixth screw (88) penetrates through the first arm in a threaded mode, the sixth screw (88) is connected with a sixth nut (89), and the other end of the sixth screw (88) is used for being abutted to the third extending portion (34).

9. A workpiece holder as claimed in claim 8, characterised by a second support member (22), the second support member (22) being arranged at one end to the mounting member (20) and at the other end to support the main plate (31) in the third direction.

10. A workpiece holder as claimed in claim 1, characterised in that it further comprises a base (10), the mounting member (20) being fixedly arranged on the base (10).