Positioning jig

Abstract

The utility model provides a positioning jig. The positioning jig comprises a base; the clamping mechanism comprises a fixed clamping piece and a movable clamping piece, the fixed clamping piece and the movable clamping piece are arranged on the two opposite sides of the base and used for clamping the two opposite side edges of a workpiece, and the movable clamping piece can be movably arranged relative to the fixed clamping piece so as to be close to or away from the fixed clamping piece. At least one of the fixed clamping piece and the movable clamping piece is provided with an abutting block used for abutting against the machining face of the workpiece. The floating supporting seat is used for supporting a workpiece; the elastic mechanism is arranged on the base and elastically abuts against the floating supporting base so as to elastically push the floating supporting base to move in the direction close to the abutting block, and therefore the machining face of the workpiece can abut against the abutting block. According to the positioning jig, it can be guaranteed that the machining faces of the workpieces are located on the same plane all the time, machining consistency is guaranteed, and machining quality is effectively improved.

Description

Technical Field

[0001] The present application belongs to the technical field of positioning tooling, and more specifically, relates to a positioning fixture. Background Art

[0002] Laser processing is widely used in the processing of workpieces such as electronic products due to its greater flexibility. For example, laser is used to mark the surface of electronic products. Before processing, the workpiece needs to be clamped on a positioning fixture for fixation.

[0003] Since the thickness of different workpieces may be different, the current positioning fixture cannot ensure that the processing surface of the workpiece is always located on the same plane, thus affecting the processing quality. Utility Model Content

[0004] The embodiment of the present application provides a positioning fixture, which can ensure that the processing surface of the workpiece is always located on the same plane, thereby ensuring the consistency of processing and effectively improving the processing quality.

[0005] The technical solution adopted in the embodiment of the present application is: to provide a positioning fixture, including:

[0006] Pedestal;

[0007] At least one set of clamping mechanisms, the clamping mechanism comprising a fixed clamping member and a movable clamping member, the fixed clamping member and the movable clamping member are arranged on opposite sides of the base, and are used to clamp opposite side edges of the workpiece, and the movable clamping member can be movably arranged relative to the fixed clamping member to approach or move away from the fixed clamping member, and at least one of the fixed clamping member and the movable clamping member is provided with a pressing block for abutting against a processing surface of the workpiece;

[0008] A floating support seat is used to support the workpiece; and an elastic mechanism is arranged on the base and elastically abuts against the floating support seat to elastically push the floating support seat to move in a direction close to the pressure block so that the processing surface of the workpiece abuts against the pressure block.

[0009] Furthermore, the pressing block is arranged at an end of the fixed clamping member and / or the movable clamping member away from the base.

[0010] Furthermore, the elastic mechanism comprises:

[0011] A connecting seat, which can be movably installed on the base along a direction approaching or moving away from the pressing block and connected to the floating support seat;

[0012] a supporting assembly, disposed on the base; and

[0013] The first elastic member has one end abutting against the connecting seat and the other end abutting against the abutting assembly so as to elastically push the connecting seat to move in a direction close to the pressing block.

[0014] Furthermore, the abutment assembly comprises:

[0015] A mounting member, arranged on the base, and provided with an adjustment hole;

[0016] An adjusting member has one end passing through the adjusting hole and being adjustably connected to the adjusting hole so as to adjust the distance that the adjusting member extends out of the mounting member, and one end of the adjusting member passing through the adjusting hole abuts against the first elastic member.

[0017] Furthermore, the base is provided with a through hole, the connecting seat is arranged on a side of the base away from the floating support seat, the connecting seat can be movably installed in the through hole along a direction approaching or moving away from the pressure block, and one end of the connecting seat passes through the through hole and is connected to the floating support seat.

[0018] Furthermore, a stopper for preventing the connecting seat from escaping from the through hole is provided at one end of the connecting seat away from the floating support seat.

[0019] Furthermore, the clamping mechanism further comprises a second elastic member, which is elastically in contact with the movable clamping member to provide an elastic thrust so that the movable clamping member elastically holds the workpiece against the fixed clamping member.

[0020] Furthermore, the positioning fixture also includes a rotating shaft, which is arranged on the base, and the movable clamping member can be rotatably installed on the rotating shaft to approach or move away from the fixed clamping member.

[0021] Furthermore, a guiding inclined surface for facilitating the introduction of the workpiece is provided on a side of the fixed clamping member and / or the movable clamping member facing the workpiece.

[0022] Further, the clamping mechanism includes two groups, wherein one group of the clamping mechanisms clamps the two opposite sides of the workpiece along the first direction, and the other group of the clamping mechanisms clamps the two opposite sides of the workpiece along the second direction.

[0023] Wherein, the first direction and the second direction are arranged at an angle.

[0024] The positioning fixture provided by the embodiment of the present application has the following beneficial effects: the positioning fixture of the embodiment of the present application is provided with at least one group of clamping mechanisms, each group of clamping mechanisms includes a fixed clamping member provided on a base, and a movable clamping member that can be close to or away from the fixed clamping member, and the fixed clamping member cooperates with the movable clamping member to achieve clamping and positioning of the two opposite sides of the workpiece. At least one of the fixed clamping member and the movable clamping member is provided with a pressing block, and a floating support seat is provided in cooperation. When the workpiece is placed on the floating support seat, the elastic mechanism is used to push the floating support seat to move in a direction close to the pressing block, so that the processing surface of the workpiece is pressed against the pressing block. When processing workpieces of different thicknesses, it is only necessary to press the processing surface of the workpiece against the pressing block to ensure that the processing surface of the workpiece is always on the same plane, thereby ensuring the consistency of processing and effectively improving the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a positioning fixture provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the state of the positioning fixture provided in an embodiment of the present application after clamping a workpiece;

[0028] Figure 3 A schematic diagram of the exploded structure of the positioning fixture provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of a top view of the positioning fixture provided in an embodiment of the present application;

[0030] Figure 5 For along Figure 4 Cross-sectional structure diagram along line AA.

[0031] Among them, the reference numerals in the figure are:

[0032] 10. Base; 11. Through hole; 20. Clamping mechanism; 21. Fixed clamping member; 211. Pressure block; 212. Guide ramp; 22. Movable clamping member; 30. Floating support seat; 40. Elastic mechanism; 41. Connecting seat; 411. Stop block; 42. Push-up assembly; 421. Mounting member; 4211. Adjusting hole; 422. Adjusting member; 43. First elastic member; 50. Second elastic member; 60. Abutting seat; 70. Rotating shaft; 100. Workpiece; 110. Processing surface. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] See also Figure 1 and Figure 2 The positioning fixture provided in the embodiment of the present application is now described. The positioning fixture provided in the embodiment of the present application can be used to clamp and fix a workpiece 100, such as a conventional workpiece 100 or a special-shaped workpiece 100 (a projector, a game controller, a smart watch, etc.).

[0038] See also Figure 1 and Figure 3The positioning fixture provided in the embodiment of the present application includes a base 10, at least one set of clamping mechanisms 20, a floating support seat 30 and an elastic mechanism 40. The clamping mechanism 20 includes a fixed clamping member 21 and a movable clamping member 22. The fixed clamping member 21 and the movable clamping member 22 are arranged on opposite sides of the base 10, and are used to clamp the opposite side edges of the workpiece 100. The movable clamping member 22 can be movably arranged relative to the fixed clamping member 21 to approach or move away from the fixed clamping member 21, so as to clamp or release the workpiece 100. Through the cooperation between the fixed clamping member 21 and the movable clamping member 22, the clamping and positioning of the workpiece 100 in the lateral direction is achieved.

[0039] At least one of the fixed clamping member 21 and the movable clamping member 22 is provided with a pressing block 211 for abutting against the processing surface 110 of the workpiece 100. That is, the processing surface 110 of the workpiece 100 abuts against the pressing block 211. When processing workpieces 100 of different thicknesses, it is only necessary to make the processing surface 110 of the workpiece 100 abut against the pressing block 211 to ensure that the processing surface 110 of the workpiece 100 is always located on the same plane. It is understandable that the pressing block 211 can be provided only on the fixed clamping member 21 or only on the movable clamping member 22, or the pressing block 211 can be provided on both the fixed clamping member 21 and the movable clamping member 22.

[0040] The floating support seat 30 is used to support the workpiece 100 , for example, can be supported on the bottom surface of the workpiece 100 .

[0041] The elastic mechanism 40 is arranged on the base 10 and elastically abuts against the floating support seat 30, so as to elastically push the floating support seat 30 to move in a direction close to the pressing block 211, so that the processing surface 110 of the workpiece 100 abuts against the pressing block 211. Among them, the processing surface 110 of the workpiece 100 can be the top surface of the workpiece 100. Since there are usually certain differences in the thickness dimensions of the workpiece 100, which results in the processing surfaces 110 of the workpiece 100 not being located on the same plane, when processing the processing surfaces 110 of different workpieces 100, it is easy to cause processing quality problems. In the embodiment of the present application, by setting a floating support seat 30, when the workpiece 100 is placed on the floating support seat 30, the elastic mechanism 40 will elastically push the floating support seat 30 to move in a direction close to the pressing block 211, so that the processing surface 110 of the workpiece 100 abuts against the pressing block 211, thereby achieving that the processing surface 110 of the workpiece 100 is always located on the same plane, ensuring the consistency of processing and effectively improving the processing quality. Among them, please refer to Figure 1 , the thickness direction of the workpiece 100 can be represented by the Z axis.

[0042] The working process of the positioning fixture in the embodiment of the present application is as follows:

[0043] When the workpiece 100 needs to be placed, the movable clamping member 22 is first moved in a direction away from the fixed clamping member 21, that is, the clamping mechanism 20 is in an open state, and the workpiece 100 can be placed at this time;

[0044] Since the elastic mechanism 40 is in elastic contact with the floating support seat 30 , when the workpiece 100 is placed, the workpiece 100 will overcome the elastic force of the elastic mechanism 40 and be carried on the floating support seat 30 ;

[0045] After the workpiece 100 is placed, the movable clamping member 22 moves in a direction close to the fixed clamping member 21, that is, the clamping mechanism 20 is in a clamping state. At this time, the fixed clamping member 21 and the movable clamping member 22 cooperate to clamp the opposite side edges of the workpiece 100, and, under the elastic force of the elastic mechanism 40, the floating support seat 30 will be pushed to move in a direction close to the pressing block 211, so that the processing surface 110 of the workpiece 100 is always against the pressing block 211, thereby realizing the positioning of the workpiece 100 along the thickness direction.

[0046] The positioning fixture provided in the embodiment of the present application is provided with at least one set of clamping mechanisms 20, each set of clamping mechanisms 20 includes a fixed clamping member 21 provided on the base 10, and a movable clamping member 22 that can be close to or away from the fixed clamping member 21. Through the cooperation between the fixed clamping member 21 and the movable clamping member 22, the two opposite sides of the workpiece 100 are clamped and positioned. At least one of the fixed clamping member 21 and the movable clamping member 22 is provided with a pressing block 211, and a floating support seat 30 is provided in cooperation. When the workpiece 100 is placed on the floating support seat 30, the elastic mechanism 40 pushes the floating support seat 30 to move in a direction close to the pressing block 211, so that the processing surface 110 of the workpiece 100 is pressed against the pressing block 211. When processing workpieces 100 of different thicknesses, it is only necessary to make the processing surface 110 of the workpiece 100 press against the pressing block 211, so as to ensure that the processing surface 110 of the workpiece 100 is always located on the same plane, thereby ensuring the consistency of processing and effectively improving the processing quality.

[0047] See also Figure 1 The pressing block 211 can be arranged at one end of the fixed clamping member 21 and / or the movable clamping member 22 away from the base 10. That is, there is a certain distance between the pressing block and the floating support seat 30, which is convenient for placing the workpiece 100. Specifically, the pressing block extends from one end of the fixed clamping member 21 and / or the movable clamping member 22 away from the base 10 to form a hook portion, which is simple and convenient to process.

[0048] See also Figures 3 to 5The elastic mechanism 40 may include a connecting seat 41, a push-up assembly 42 and a first elastic member 43. The connecting seat 41 can be movably installed on the base 10 and connected to the floating support seat 30 along a direction close to or away from the pressing block 211. The push-up assembly 42 is arranged on the base 10. One end of the first elastic member 43 abuts against the connecting seat 41, and the other end abuts against the push-up assembly 42, so as to elastically push the connecting seat 41 to move in a direction close to the pressing block 211. By abutting one end of the first elastic member 43 against the connecting seat 41, and abutting the other end against the push-up assembly 42, the connecting seat 41 is elastically pushed to move in a direction close to the pressing block 211, so that the processing surface 110 of the workpiece 100 abuts against the pressing block 211, and the structure is simple and easy to operate. Specifically, the first elastic member 43 may be a spring or a spring.

[0049] See also Figures 3 to 5 , the abutting assembly 42 may include a mounting member 421 and an adjusting member 422. The mounting member 421 is provided on the base 10, and an adjusting hole 4211 is provided on the mounting member 421. One end of the adjusting member 422 passes through the adjusting hole 4211 and is adjustably connected to the adjusting hole 4211 to adjust the distance that the adjusting member 422 extends out of the mounting member 421, and one end of the adjusting member 422 passing through the adjusting hole 4211 abuts against the first elastic member 43. Through the cooperation between the adjusting member 422 and the adjusting hole 4211, the distance that the adjusting member 422 extends out of the mounting member 421 can be adjusted, and the elastic force of the first elastic member 43 can be adjusted. Specifically, the adjusting member 422 can be an adjusting screw, and the adjusting hole 4211 can be a threaded hole. Through the cooperation between the adjusting screw and the adjusting hole 4211, the elastic tightness of the first elastic member 43 can be adjusted, and the adjustment is very simple and convenient.

[0050] See also Figure 3 The base 10 may be provided with a through hole 11, and the connecting seat 41 is arranged on the side of the base 10 away from the floating support seat 30. The connecting seat 41 may be movably installed in the through hole 11 in a direction close to or away from the pressing block 211, and one end of the connecting seat 41 passing through the through hole 11 is connected to the floating support seat 30. Through the cooperation between the connecting seat 41 and the through hole 11, the guiding function of the connecting seat 41 can be realized. By arranging the connecting seat 41 on the side of the base 10 away from the floating support seat 30, the overall structure can be made compact, which is conducive to reducing the volume.

[0051] See also Figure 3 The end of the connection seat 41 away from the floating support seat 30 may be provided with a stopper 411 for preventing the connection seat 41 from coming out of the through hole 11. The setting of the stopper 411 can play a limiting role, and can prevent the connection seat 41 from coming out of the through hole 11 under the elastic force of the first elastic member 43.

[0052] See also Figure 1 and Figure 3The clamping mechanism 20 may further include a second elastic member 50, which elastically contacts the movable clamping member 22 to provide an elastic thrust so that the movable clamping member 22 elastically holds the workpiece 100 against the fixed clamping member 21. The movable clamping member 22 is pushed by the second elastic member 50 to elastically hold the workpiece 100 against the fixed clamping member 21, thereby achieving lateral positioning of the workpiece 100. When the workpiece 100 needs to be released, it is only necessary to move the movable clamping member 22 in a direction away from the fixed clamping member 21. After the workpiece 100 is placed, the workpiece 100 can be quickly clamped and positioned under the elastic force of the second elastic member 50. Specifically, the second elastic member 50 may be a spring or a spring sheet. And it can meet the clamping of workpieces 100 of different specifications.

[0053] See also Figure 1 and Figure 3 The clamping mechanism 20 may further include an abutment seat 60 , which is disposed on the base 10 , and one end of the second elastic member 50 away from the movable clamping member 22 abuts against the abutment seat 60 .

[0054] See also Figure 3 The positioning fixture may also include a rotating shaft 70, which is disposed on the base 10, and the movable clamping member 22 may be rotatably mounted on the rotating shaft 70 to be close to or away from the fixed clamping member 21. By rotatably mounting the movable clamping member 22 on the rotating shaft 70, the clamping or releasing state of the clamping mechanism 20 may be achieved by flipping the movable clamping member 22. Moreover, the movable clamping member 22 is opened at a larger angle, which facilitates the placement of the workpiece 100. It is understandable that the arrangement of the movable clamping member 22 is not limited thereto. For example, the movable clamping member 22 may be movably mounted on the base 10, and by moving relative to the base 10, it may be close to or away from the fixed clamping member 21, which may also achieve the clamping or releasing of the workpiece 100.

[0055] See also Figure 3 When the movable clamping member 22 is rotatably mounted on the rotating shaft 70, the second elastic member 50 can be arranged at an angle, which can realize the clamping or loosening of the movable clamping member 22 in a smaller space, making the structure more compact.

[0056] See also Figure 1 A guide slope 212 is provided on one side of the fixed clamping member 21 and / or the movable clamping member 22 facing the workpiece 100. The provision of the guide slope 212 greatly facilitates the introduction of the workpiece 100.

[0057] See also Figure 1 and Figure 2The clamping mechanism 20 may include two groups, one of which clamps the two opposite sides of the workpiece 100 along the first direction, and the other clamps the two opposite sides of the workpiece 100 along the second direction. By setting two groups of clamping mechanisms 20, the workpiece 100 can be better clamped and positioned more accurately. The first direction and the second direction are set at an angle. Specifically, it can be set at 90°. Please refer to Figure 1 , the “first direction” can be Figure 1 The X-axis in the figure represents the “second direction”. Figure 1 The Y-axis represents.

[0058] See also Figure 1 and Figure 2 The side of the floating support seat 30 in contact with the workpiece 100 is adapted to the shape of the workpiece 100. Through the contour setting, the workpiece 100 can be better fitted on the floating support seat 30 and positioned more accurately.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A positioning fixture, characterized in that: include: Pedestal; At least one set of clamping mechanisms, the clamping mechanism comprising a fixed clamping member and a movable clamping member, the fixed clamping member and the movable clamping member are arranged on opposite sides of the base, and are used to clamp opposite side edges of the workpiece, and the movable clamping member can be movably arranged relative to the fixed clamping member to approach or move away from the fixed clamping member, and at least one of the fixed clamping member and the movable clamping member is provided with a pressing block for abutting against a processing surface of the workpiece; A floating support seat is used to support the workpiece; and an elastic mechanism is arranged on the base and elastically abuts against the floating support seat to elastically push the floating support seat to move in a direction close to the pressure block so that the processing surface of the workpiece abuts against the pressure block.

2. The positioning fixture according to claim 1, characterized in that: The pressing block is arranged at an end of the fixed clamping member and / or the movable clamping member away from the base.

3. The positioning fixture according to claim 1, characterized in that: The elastic mechanism comprises: A connecting seat, which can be movably installed on the base along a direction approaching or moving away from the pressing block and connected to the floating support seat; a supporting assembly, disposed on the base; and The first elastic member has one end abutting against the connecting seat and the other end abutting against the abutting assembly so as to elastically push the connecting seat to move in a direction close to the pressing block.

4. The positioning fixture according to claim 3, characterized in that: The abutment assembly comprises: A mounting member, arranged on the base, and provided with an adjustment hole; An adjusting member has one end passing through the adjusting hole and being adjustably connected to the adjusting hole so as to adjust the distance that the adjusting member extends out of the mounting member, and one end of the adjusting member passing through the adjusting hole abuts against the first elastic member.

5. The positioning fixture according to claim 3, characterized in that: The base is provided with a through hole, the connecting seat is arranged on a side of the base away from the floating support seat, the connecting seat can be movably installed in the through hole along a direction approaching or moving away from the pressure block, and one end of the connecting seat passes through the through hole and is connected to the floating support seat.

6. The positioning fixture according to claim 5, characterized in that: A stopper for preventing the connecting seat from escaping from the through hole is arranged at one end of the connecting seat away from the floating supporting seat.

7. The positioning fixture according to any one of claims 1 to 6, characterized in that: The clamping mechanism further includes a second elastic member, which is elastically in contact with the movable clamping member to provide an elastic thrust so that the movable clamping member elastically holds the workpiece against the fixed clamping member.

8. The positioning fixture according to any one of claims 1 to 6, characterized in that: The positioning fixture further comprises a rotating shaft, which is arranged on the base, and the movable clamping member can be rotatably mounted on the rotating shaft to approach or move away from the fixed clamping member.

9. The positioning fixture according to any one of claims 1 to 6, characterized in that: A guiding inclined surface for facilitating the introduction of the workpiece is provided on a side of the fixed clamping member and / or the movable clamping member facing the workpiece.

10. The positioning fixture according to any one of claims 1 to 6, characterized in that: The clamping mechanism comprises two groups, wherein one group of the clamping mechanisms clamps the two opposite sides of the workpiece along the first direction, and the other group of the clamping mechanisms clamps the two opposite sides of the workpiece along the second direction. Wherein, the first direction and the second direction are arranged at an angle.

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