A positioning tool

Abstract

This utility model discloses a positioning fixture, comprising: a base; multiple sliding members disposed on the base and movable along a first direction; a positioning member mounted on the sliding members and movable along a second direction; and a locking member mounted on the sliding members, including a force-applying part and a fastening part. The force-applying part can move along a preset path, and when it moves along the preset path, it drives the fastening part to abut against the workpiece, thereby fixing the workpiece in contact with the positioning member. The positioning fixture of this utility model allows adjustment of the positions of the sliding members and the positioning member according to the shape of the workpiece. The force-applying part of the locking member then drives the fastening part to abut against the workpiece, thus clamping and fixing the workpiece through the positioning member and the fastening part. The positions of the sliding members, positioning member, and locking member of this utility model are all flexibly adjustable, thus enabling the fixing of irregularly shaped workpieces.

Description

Technical Field

[0001] This utility model relates to the field of positioning technology, and in particular to a positioning tool. Background Technology

[0002] There is a type of positioning fixture used to fix parts. It mainly fixes the parts by setting multiple positioning holes and multiple threaded holes on the positioning platform. However, the positions of the positioning holes and threaded holes are fixed. When the shape of the parts is irregular or the structure is complex, the parts cannot be fixed. Utility Model Content

[0003] The purpose of this utility model is to provide a positioning fixture to at least solve the above-mentioned technical problems, so that the positioning fixture can be applied to the fixing of parts with complex shapes.

[0004] This utility model provides a positioning fixture, including:

[0005] Base;

[0006] A slider is disposed on the base, and the slider includes multiple sliders, which are movable along a first direction;

[0007] A positioning element, which is mounted on the sliding element and is movable in a second direction;

[0008] A locking member is mounted on the sliding member. The locking member includes a force-applying part and a fastening part. The force-applying part can move along a preset path. When the force-applying part moves along the preset path, it can drive the fastening part to abut against the workpiece, so that the workpiece abuts against the positioning member to fix the workpiece.

[0009] As described above, in a positioning fixture, the preset path is the path along which the force-applying part moves in a third direction. The force-applying part is provided with a pushing part, and the fastening part is provided with a forced pushing part. At least one of the pushing part and the forced pushing part is provided with a pushing inclined surface. When the force-applying part moves in the third direction, the pushing part abuts against the forced pushing part along the pushing inclined surface to drive the fastening part to abut against the workpiece.

[0010] As described above, in a positioning fixture, the locking member includes a first base, the force-applying part includes a force-applying block and a fastening bolt, the first base is provided with a first through hole, the fastening bolt is connected to the sliding member, and the fastening bolt passes through the force-applying block and the first through hole.

[0011] As described above, the positioning fixture further includes an elastic element on the force-applying part. The elastic element is sleeved on the fastening bolt, and the opposite ends of the elastic element are respectively connected to the first base and the force-applying block to apply an elastic force to the force-applying block, so that the force-applying block elastically reciprocates along the third direction.

[0012] As described above, in a positioning fixture, the preset path is the path along which the force-applying part rotates in the fourth direction. The force-applying part abuts against the fastening part. When the force-applying part rotates in the fourth direction, it drives the fastening part to rotate in the fourth direction so that the fastening part abuts against the workpiece.

[0013] As described above, the positioning fixture further includes a second base, one end of the fastening part is pivotally connected to the second base, and the fastening part can rotate around the pivot point between the fastening part and the second base under the action of the force-applying part.

[0014] As described above, in a positioning fixture, the force-applying part includes a pull rod and a handle. One end of the pull rod is pivotally connected to the handle. The second base and the fastening part are both sleeved on the pull rod. The handle can rotate in the fourth direction. When the handle rotates in the fourth direction, the handle presses against the fastening part to drive the fastening part to rotate in the fourth direction.

[0015] As described above, in a positioning fixture, the base is provided with a first sliding part, the sliding member is provided with a first sliding engagement part, and the first sliding part and the first sliding engagement part form a sliding engagement; the sliding member is provided with a second sliding part, the positioning member and the locking member are both provided with a second sliding engagement part, and the second sliding part and the second sliding engagement part form a sliding engagement.

[0016] In the positioning fixture described above, the second sliding part has a groove structure, and one end of the second sliding part penetrates the sliding member to form an opening, so that the positioning member and the locking member are mounted on the sliding member through the opening. Locking member

[0017] As described above, the positioning fixture further includes a locking part, which passes through the sliding member and cooperates with the base. The locking part can lock the sliding member to the base to fix the sliding member.

[0018] Compared with existing technologies, the positioning fixture of this invention allows for adjustment of the positions of the sliding and positioning components according to the shape of the workpiece. The locking component then drives the fastening component to abut against the workpiece, causing the workpiece to collide with the positioning component. The positioning component and fastening component then clamp the workpiece for fixation. The positions of the sliding, positioning, and locking components in this invention are all flexibly adjustable, thus enabling the fixation of irregularly shaped workpieces. Attached Figure Description

[0019] Figure 1 This is a perspective view of the positioning fixture provided in Embodiment 1 of this utility model;

[0020] Figure 2 This is a top view of the positioning fixture provided in Embodiment 1 of this utility model;

[0021] Figure 3 This is a perspective view of the locking component provided in Embodiment 1 of this utility model;

[0022] Figure 4 This is an exploded view of the locking component provided in Embodiment 1 of this utility model;

[0023] Figure 5 This is a side view of the locking member provided in Embodiment 1 of this utility model;

[0024] Figure 6 yes Figure 5 Cross-sectional view along the AA direction;

[0025] Figure 7 This is a perspective view of the positioning fixture provided in Embodiment 2 of this utility model;

[0026] Figure 8 This is a top view of the positioning fixture provided in Embodiment 2 of this utility model;

[0027] Figure 9 This is a perspective view of the locking component provided in Embodiment 2 of this utility model;

[0028] Figure 10 This is an exploded view of the locking component provided in Embodiment 2 of this utility model;

[0029] Figure 11 This is a side view of the locking member provided in Embodiment 2 of this utility model;

[0030] Figure 12 This is a perspective view of the base provided in an embodiment of this utility model;

[0031] Figure 13 This is a top view of the base provided in an embodiment of this utility model;

[0032] Figure 14 This is a front view of the base provided in an embodiment of this utility model;

[0033] Figure 15 This is a perspective view of the sliding member provided in an embodiment of this utility model;

[0034] Figure 16 This is a front view of the slider provided in an embodiment of this utility model;

[0035] Figure 17 This is a side view of the slider provided in an embodiment of this utility model;

[0036] Figure 18 This is a perspective view of the positioning component provided in an embodiment of this utility model;

[0037] Figure 19 This is a front view of the positioning component provided in an embodiment of this utility model;

[0038] Figure 20 yes Figure 19 Cross-sectional view along the BB direction.

[0039] Explanation of reference numerals in the attached figures:

[0040] 10-Base, 11-First sliding part, 111-First sliding groove;

[0041] 20-Sliding component, 21-First sliding fit, 211-First slider, 22-Second sliding part, 221-Second groove, 23-Threaded hole, 24-Opening;

[0042] 30-Positioning component, 31-Stop, 311-Third through hole, 32-Positioning bolt;

[0043] 40-Locking component, 41-Force-applying part, 411-Force-applying block, 412-Fasting bolt, 413-Elastic component, 414-Pull rod, 415-Handle, 42-Fasting part, 421-Push block, 422-Fourth through hole, 43-Forced push part, 44-Forced push part, 45-First base, 451-First through hole, 46-Second base, 461-Second through hole;

[0044] 50 - Second sliding fit part, 51 - Second slider, 52 - Threaded part;

[0045] 60 - Locking part, 61 - Locking bolt;

[0046] D1 - First direction, D2 - Second direction, D3 - Third direction, D4 - Fourth direction. Detailed Implementation

[0047] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0048] Reference Figure 1 , Figure 2 , Figure 7 as well as Figure 8 As shown, this utility model provides a positioning fixture, including a base 10, a sliding member 20, a positioning member 30, and a locking member 40.

[0049] A sliding member 20 is disposed on a base 10, and the base 10 is provided with multiple sliding members 20. These multiple sliding members 20 can move along a first direction D1. The first direction D1 is either the length direction of the base 10 or the width direction of the base 10. When the workpiece to be fixed has an irregular shape, the multiple sliding members 20 can be moved along the first direction D1 to adjust their positions on the base 10. This allows the distance between adjacent sliding members 20 to be adjusted according to the shape of the workpiece, enabling the workpiece to be supported on the multiple sliding members 20.

[0050] The positioning element 30 is installed on the sliding element 20. The positioning element 30 can move along the second direction D2, which is the extension direction of the sliding element 20. That is, the position of the positioning element 30 on the sliding element 20 is adjustable. Multiple positioning elements 30 can be installed on the sliding element 20 at the same time. The number of positioning elements 30 can be selected according to the shape of the workpiece, and the position of multiple positioning elements 30 on the sliding element 20 can be adjusted. The positioning element 30 is installed on the sliding element 20 at the position corresponding to the part of the workpiece that needs to be fixed.

[0051] The locking member 40 is mounted on the sliding member 20. The locking member 40 includes a force-applying part 41 and a fastening part 42. The force-applying part 41 can move along a preset path. When the force-applying part 41 moves along the preset path, it can drive the fastening part 42 to abut against the workpiece. As the force-applying part 41 continues to move along the preset path, the fastening part 42 can push the corresponding part of the workpiece to abut against the corresponding positioning member 30, so that the workpiece at that position is clamped and fixed by the positioning member 30 and the fastening part 42.

[0052] The force-applying part 41 may have its own driving force, thereby applying force to the fastening part 42. Alternatively, the force-applying part 41 may also accept external forces, such as applying force to it through tools like wrenches or screwdrivers, in order to apply force to the fastening part 42. This is not limited here.

[0053] The working principle of the positioning fixture of this application is as follows: First, according to the shape of the workpiece, the positions of multiple sliding parts 20 on the base 10 are adjusted, and the workpiece is placed on the multiple sliding parts 20; then, positioning parts 30 are installed on the sliding parts 20 at the positions where the workpiece needs to be fixed, so that the positioning parts 30 abut against the edge of the workpiece for pre-fixation; then, a locking part 40 is installed on the sliding parts 20 at each position where the workpiece needs to be fixed, and then the force application part 41 moves along a preset path to drive the fastening part 42 to abut against the workpiece. As the force application part 41 continues to move, the fastening part 42 pushes the workpiece to abut against the corresponding positioning part 30, so that the workpiece at that position is clamped and fixed by the positioning part 30 and the fastening part 42. Other positions of the workpiece that need to be fixed are fixed in the same way, so that the workpiece with irregular shape can be fixed.

[0054] The quantity and position of the sliding component 20, the positioning component 30, and the locking component 40 can be selected and set according to the shape of the product, which is flexible. This makes the positioning fixture suitable for fixing workpieces with irregular shapes or complex structures, improving the versatility of the positioning fixture, effectively improving production efficiency, and reducing production costs.

[0055] In the embodiments provided in this application, reference is made to Figure 12 As shown, the base 10 is provided with a first sliding part 11, as referenced. Figure 15 As shown, the slider 20 is provided with a first sliding engagement part 21. The first sliding part 11 and the first sliding engagement part 21 form a sliding engagement, so that the slider 20 can move on the base 10, so as to quickly adjust the position of the slider 20 according to the shape of the workpiece.

[0056] Furthermore, to facilitate adjusting the positions of the positioning member 30 and the locking member 40 on the sliding member 20, refer to... Figure 15 As shown, the slider 20 is provided with a second sliding part 22, referring to... Figure 3 , Figure 9 as well as Figure 18 As shown, both the positioning member 30 and the locking member 40 are provided with a second sliding engagement part 50. The second sliding part 22 and the second sliding engagement part 50 form a sliding engagement, so that the positioning member 30 and the locking member 40 can move on the sliding member 20. This facilitates the quick adjustment of the position of the positioning member 30 and the locking member 40 to adapt to the shape of the workpiece and select a suitable position for fixing.

[0057] In one feasible implementation, refer to Figures 12 to 14 As shown, the first sliding part 11 consists of a plurality of first sliding grooves 111 provided on the base 10. The first sliding grooves 111 extend along the first direction D1, as shown in the figure. Figure 15 as well as Figure 16As shown, the first sliding engagement part 21 consists of a plurality of first sliders 211 disposed on the slider 20. The positions of the plurality of first sliders 211 correspond one-to-one with the positions of the plurality of first slide grooves 111. Through the sliding engagement of the plurality of first sliders 211 and the plurality of first slide grooves 111, the slider 20 can slide stably on the base 10.

[0058] Reference Figure 15 As shown, the second sliding part 22 is a second sliding groove 221 provided on the slider 20. The second sliding groove 221 extends along the extending direction of the slider 20. (Refer to...) Figure 6 as well as Figure 20 As shown, the second sliding engagement part 50 is a second slider 51 provided on the positioning member 30 and the locking member 40. By moving the second slider 51 along the second slide groove 221, the position of the positioning member 30 and the locking member 40 on the sliding member 20 can be adjusted.

[0059] To facilitate the installation and removal of the positioning element 30 and the locking element 40, the second sliding part 22 has a groove structure. One end of the second sliding part 22 passes through the sliding member 20 to form an opening 24, so that the positioning element 30 and the locking element 40 are installed on the sliding member 20 through the opening 24. Specifically, one end of the second sliding groove 221 passes through the sliding member 20 to form an opening 24. When fixing the workpiece, the number of positioning elements 30 and locking elements 40 to be installed on each sliding member 20 can be selectively determined according to the shape of the workpiece, and multiple positioning elements 30 and multiple locking elements 40 can be quickly installed on the sliding member 20 through the opening 24 of the corresponding sliding member 20.

[0060] In one example, the first slide groove 111 and the second slide groove 221 can be T-slots, and the first slider 211 and the second slider 51 can be T-blocks. The cooperation between the T-blocks and the T-slots can make the movement of the slider 20, the positioning member 30 and the locking member 40 more stable, thereby improving the fixing effect on the workpiece.

[0061] The first sliding part 11 and the first sliding engagement part 21, the second sliding part 22 and the second sliding engagement part 50 may adopt other structures or components that can form a sliding engagement, and are not limited here.

[0062] In the embodiments provided in this application, reference is made to Figures 18 to 20 As shown, the positioning component 30 includes a stop block 31 and a positioning bolt 32. The stop block 31 is provided with a third through hole 311. The second sliding fit part 50 provided on the positioning component 30 is provided with a threaded part 52 that mates with the positioning bolt 32. The positioning bolt 31 passes through the third through hole 311 and engages with the threaded part 52, which facilitates the adjustment of the position of the stop block 31. That is, when installing the positioning component 30, the positioning component 30 can be moved to the corresponding position of the product first, and then the stop block 31 can be adjusted to abut against the product. Finally, the positioning bolt 32 can be rotated to fix the position of the stop block 31.

[0063] After the workpiece is fixed by multiple positioning elements 30 and multiple locking elements 40, the positions of all sliding elements 20 need to be fixed to facilitate subsequent operations on the workpiece. Therefore, referring to... Figure 1 and Figure 7 As shown, the positioning fixture of this application also includes a locking part 60, which passes through the sliding member 20 and cooperates with the base 10. The locking part 60 can lock the sliding member 20 and the base 10 to fix the sliding member 20.

[0064] In one possible implementation, the locking part 60 includes a locking bolt 61, as shown in the figure. Figure 15 and Figure 17 As shown, both ends of the sliding member 20 are provided with threaded holes 23 that mate with the locking bolts 61. After the workpiece is fixed, the locking bolts 61 are screwed into the threaded holes 23. When the end of the locking bolts 61 presses against the base 10, the sliding member 20 is locked.

[0065] In one embodiment provided in this application, reference is made to... Figures 1 to 6 As shown, the preset path is the path of the force-applying part 41 moving along the third direction D3, where the third direction D3 is the direction of gravity. The force-applying part 41 is provided with a pushing part 43, and the fastening part 42 is provided with a forced pushing part 44. At least one of the pushing part 43 and the forced pushing part 44 is provided with a pushing inclined surface. When the force-applying part 41 moves along the third direction D3, the pushing part 43 abuts against the forced pushing part 44 along the pushing inclined surface to drive the fastening part 42 to abut against the workpiece.

[0066] Both the pushing part 43 and the forced pushing part 44 are provided with a pushing inclined surface. During the movement of the force-applying part 41, the pushing inclined surface of the force-applying part 41 and the pushing inclined surface of the fastening part 42 always remain in contact. When the force-applying part 41 moves (downward) along the third direction D3, it will give the fastening part 42 a downward force. This force can be decomposed into a horizontal component force. This component force can drive the fastening part 42 to move in the horizontal direction to get closer to the workpiece. As the force-applying part 41 continues to move downward, the fastening part 42 comes into contact with the workpiece.

[0067] Furthermore, referring to Figure 4 and Figure 6 As shown, the locking member 40 includes a first base 45, and the force-applying part 41 includes a force-applying block 411 and a fastening bolt 412. The first base 45 has a first through hole 451. The fastening bolt 412 is connected to the sliding member 20 and passes through the force-applying block 411 and the first through hole 451. (Force-applying block)

[0068] In one feasible implementation, refer to Figure 6As shown, the second sliding fit part 50 is provided with a threaded part 52 that is threaded to engage with the fastening bolt 412. The fastening part 42 is a push block 421, which is provided on the first base 45 and abuts against the force application block 411. After the fastening bolt 412 passes through the force application block 411 and the first base 45 in sequence, it forms a threaded engagement with the threaded part 52 on the second sliding fit part 50.

[0069] Specifically, rotating the fastening bolt 412 causes the force-applying block 411 to move downward. Since the force-applying block 411 is provided with a pushing part 43 and the push block 421 is provided with a forced pushing part 44, the force-applying block 411 can drive the push block 421 to move horizontally during the downward movement, thereby getting closer to the workpiece.

[0070] During the downward movement of the force-applying part 41 along the third direction D3, in order to ensure that the fastening part 42 remains in contact with the workpiece after contact, refer to Figure 4 as well as Figure 6 As shown, the force-applying part 41 also includes an elastic element 413, which is sleeved on the fastening bolt 412. The opposite ends of the elastic element 413 are connected to the first base 45 and the force-applying block 411 respectively, so as to apply an elastic force to the force-applying block 411, so that the force-applying block 411 elastically reciprocates along the third direction D3.

[0071] When the rotating fastening bolt 412 drives the force-applying block 411 to move downward, the elastic element 413 contracts and undergoes elastic deformation under the action of the force-applying block 411, accumulating elastic force and applying the accumulated elastic force to the force-applying block 411, so that the force-applying block 411 can be kept at the end of the fastening bolt 412. As the fastening bolt 412 continues to move downward, the force-applying block 411 can always maintain abutting state with the push block 421, so as to ensure that the push block 421 can continue to move in the horizontal direction and thus always abut against the workpiece.

[0072] When removing the workpiece, rotate the fastening bolt 412 in the opposite direction. Driven by the elastic force, the force block 411 moves upward along the third direction D3 to reset, so that the push block 421 can also be reset for the next operation.

[0073] In another embodiment provided in this application, reference is made to... Figures 7 to 11 As shown, the preset path is the path of the force-applying part 41 rotating along the fourth direction D4. The force-applying part 41 abuts against the fastening part 42. When the force-applying part 41 rotates along the fourth direction D4, it drives the fastening part 42 to rotate along the fourth direction D4, so that the fastening part 42 abuts against the workpiece. In the embodiment provided in this application, the fourth direction D4 is the direction of clockwise rotation of the force-applying part 41. When the force-applying part 41 rotates, it presses against the fastening part 42, causing the fastening part 42 to rotate clockwise synchronously, thereby approaching the workpiece. As the force-applying part 41 continues to rotate, the fastening part 42 continues to approach the workpiece until it abuts against the workpiece.

[0074] In one feasible implementation, refer to Figure 10 As shown, the locking member 40 also includes a second base 46, on which a second through hole 461 is provided. One end of the fastening part 42 is pivotally connected to the second base 46. Under the action of the force-applying part 41, the fastening part 42 can rotate around the pivot point between the fastening part 42 and the second base 46. The fastening part 42 is provided with a fourth through hole 422. The force-applying part 41 includes a pull rod 414 and a handle 415. One end of the pull rod 414 passes through the second through hole 461 and the fourth through hole 422 in sequence and is pivotally connected to the handle 415. The handle 415 can rotate along the fourth direction D4. When the handle 415 rotates along the fourth direction D4, the handle 415 always presses against the fastening part 42 to drive the fastening part 42 to rotate along the fourth direction D4.

[0075] The preset path can be a clockwise rotation of the handle 415 with the axis of the pivot shaft between the handle 415 and the pull rod 414 as the center line. During the rotation of the handle 415, the end of the handle 415 that contacts the pull rod 414 is similar to a cam structure. The rotation axis of the handle 414 is an eccentric structure. Therefore, the radius of the handle 414 acting on the fastening part 42 changes during the rotation. As a result, the force applied to the fastening part 42 is different, and thus a force is applied to the fastening part 42 during the rotation, so that the fastening part 42 rotates clockwise with the axis of the pivot shaft between the fastening part 42 and the second base 46 as the center line. The fastening part 42 rotates from an inclined state to a horizontal state, and then abuts against the workpiece.

[0076] When removing the workpiece, rotate the handle 415 in the opposite direction of the fourth direction D4 (i.e., counterclockwise) so that the fastening part 42 has space to rotate in the counterclockwise direction. After rotating the fastening part 42 counterclockwise, the state of abutting against the workpiece can be released.

[0077] In other embodiments, the locking member 40 may be other structures or components capable of fastening the workpiece, and is not limited thereto.

[0078] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A positioning fixture, characterized in that, include: Base; Multiple sliding members are provided on the base, and the multiple sliding members can move along a first direction; A positioning element, which is mounted on the sliding element and is movable in a second direction; A locking member is mounted on the sliding member. The locking member includes a force-applying part and a fastening part. The force-applying part can move along a preset path. When the force-applying part moves along the preset path, it can drive the fastening part to abut against the workpiece, so that the workpiece abuts against the positioning member to fix the workpiece.

2. The positioning fixture according to claim 1, characterized in that, The preset path is the path along which the force-applying part moves in the third direction. The force-applying part is provided with a pushing part, and the fastening part is provided with a forced pushing part. At least one of the pushing part and the forced pushing part is provided with a pushing inclined surface. When the force-applying part moves along the third direction, the pushing part abuts against the forced pushing part along the pushing inclined surface to drive the fastening part to abut against the workpiece.

3. The positioning fixture according to claim 2, characterized in that, The locking member includes a first base, and the force-applying part includes a force-applying block and a fastening bolt. The first base is provided with a first through hole, and the fastening bolt is connected to the sliding member. The fastening bolt passes through the force-applying block and the first through hole.

4. The positioning fixture according to claim 3, characterized in that, The force-applying part also includes an elastic element, which is sleeved on the fastening bolt. The opposite ends of the elastic element are respectively connected to the first base and the force-applying block to apply an elastic force to the force-applying block.

5. The positioning fixture according to claim 1, characterized in that, The preset path is the path along which the force-applying part rotates in the fourth direction. The force-applying part abuts against the fastening part. When the force-applying part rotates in the fourth direction, it drives the fastening part to rotate in the fourth direction so that the fastening part abuts against the workpiece.

6. The positioning fixture according to claim 5, characterized in that, The locking member further includes a second base, one end of the fastening part is pivotally connected to the second base, and the fastening part can rotate around the pivot point between the fastening part and the second base under the action of the force-applying part.

7. The positioning fixture according to claim 6, characterized in that, The force-applying part includes a pull rod and a handle. One end of the pull rod is pivotally connected to the handle. The second base and the fastening part are both sleeved on the pull rod. The handle can rotate in the fourth direction. When the handle rotates in the fourth direction, the handle presses against the fastening part to drive the fastening part to rotate in the fourth direction.

8. The positioning fixture according to claim 1, characterized in that, The base is provided with a first sliding part, and the sliding member is provided with a first sliding engagement part, wherein the first sliding part and the first sliding engagement part form a sliding engagement; The sliding member is provided with a second sliding part, and the positioning member and the locking member are both provided with a second sliding engagement part, and the second sliding part and the second sliding engagement part form a sliding engagement.

9. The positioning fixture according to claim 8, characterized in that, The second sliding part has a groove structure, and one end of the second sliding part passes through the sliding member to form an opening, so that the positioning member and the locking member are installed on the sliding member through the opening.

10. The positioning fixture according to claim 1, characterized in that, The positioning fixture also includes a locking part, which passes through the sliding member and cooperates with the base. The locking part can lock the sliding member to the base to fix the sliding member.

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