Auxiliary tool

Abstract

The utility model provides an auxiliary tool which comprises a support and a plurality of fixing pieces rotationally arranged on the support, and the fixing pieces are used for being fixed to a fixing column. The fixing pieces are provided with first assembling holes respectively, and internal threads are arranged on the inner walls defining the first assembling holes. The fixing column is assembled in the first assembling hole, and the internal thread is in threaded connection with the external thread of the fixing column. The circle centers of the multiple first assembling holes are all located on the circumference of the first circle. According to the auxiliary tool, accurate positioning and rapid fixing of the auxiliary tool and the fixing column are achieved by arranging the multiple fixing pieces.

Description

Technical Field

[0001] This application relates to the field of auxiliary tooling, and particularly to auxiliary tooling. Background Art

[0002] In industrial production, it is often necessary to fix workpieces in specific positions for operations such as machining and assembly, and these processes usually involve precise positioning and stable fixation. Existing fixing methods include directly using fixtures, bolts or other mechanical devices for fixation. However, for the need to precisely position and quickly fix workpieces, existing fixing methods may have problems such as low operation efficiency and inaccurate positioning. Summary of the Utility Model

[0003] This application provides an auxiliary tooling that can precisely position and quickly fix.

[0004] This application provides an auxiliary tooling, including a support and a plurality of fixing members rotatably arranged on the support. The plurality of fixing members are used to be fixed to a fixing column. The plurality of fixing members are respectively provided with first assembly holes, and the inner wall surrounding the first assembly holes is provided with internal threads. The fixing column is assembled in the first assembly holes, and the internal threads are threadedly connected with the external threads of the fixing column. The centers of the plurality of first assembly holes are all on the circumference of a first circle.

[0005] Further, the support includes a connecting portion and a plurality of branch portions connected to the connecting portion. The plurality of fixing members are respectively rotatably arranged on the branch portions, and the distances between the centers of the plurality of first assembly holes and the center point of the connecting portion are all the same.

[0006] Further, the fixing member includes a cushion block and an operation portion. The branch portion is provided with a second assembly hole. The cushion block is assembled in the second assembly hole and can move along the second assembly hole. The operation portion is located outside the second assembly hole. A first resisting portion is provided on the cushion block or the operation portion to be used for resisting against the branch portion to prevent the fixing member from disengaging from the branch portion along a first direction.

[0007] Further, the cushion block is made of a composite material.

[0008] Further, the fixing member includes a second resisting portion provided on the outer side wall of the cushion block to be used for resisting against the branch portion to prevent the fixing member from disengaging from the branch portion along a second direction opposite to the first direction.

[0009] Further, the auxiliary tooling is used for pre-fixing the wheel and the axle. The fixing post is arranged on the axle. The wheel includes a third assembly hole. The fixing post is assembled in the third assembly hole and its end is exposed. The cushion block is provided with a through hole, and the inner diameter of the through hole is larger than the outer diameter of the fixing post. When the end of the fixing post is assembled in the through hole, the first end of the cushion block is located in the third assembly hole.

[0010] Further, the cushion block has an inclined guiding portion to facilitate assembly into the third assembly hole.

[0011] Further, the fixing post includes a plurality of first fixing posts and a plurality of second fixing posts. The number of the first fixing posts is equal to the number of the fixing members. After the fixing members are fixed to the first fixing posts, the second fixing posts are fixed to the first nuts.

[0012] Further, after the second fixing posts are fixed to the first nuts, the auxiliary tooling is removed, and the first fixing posts are fixed to the second nuts.

[0013] Further, the plurality of first fixing posts and the plurality of second fixing posts are arranged at intervals along the circumferential direction of the wheel.

[0014] In some embodiments, the plurality of fixing members arranged on the support in the above technical solution can be quickly fixed to the plurality of fixing posts. At the same time, the centers of the plurality of first assembly holes provided on the fixing members are located on the circumference of the first circle, so as to accurately position the plurality of fixing members and the plurality of fixing posts. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the auxiliary tooling according to an exemplary embodiment of the present application.

[0016] Figure 2 is Figure 1 a top view of the auxiliary tooling shown.

[0017] Figure 3 is Figure 1 a side view of the auxiliary tooling shown.

[0018] Figure 4 is Figure 1 a bottom view of the auxiliary tooling shown.

[0019] Figure 5 is Figure 4 a cross-sectional view of the auxiliary tooling shown along line A-A.

[0020] Figure 6 is a schematic diagram of the wheel and the axle after assembly according to an exemplary embodiment of the present application.

[0021] Figure 7 Yes Figure 6 The schematic diagram after assembling the wheel, axle and auxiliary tooling shown in the figure.

[0022] Figure 8 Yes Figure 7 The schematic diagram after assembling the wheel, axle, auxiliary tooling and first nut shown in the figure.

[0023] Figure 9 Yes Figure 6 The schematic diagram after assembling the wheel, axle, first nut and second nut shown in the figure.

[0024] Explanation of reference numerals in the attached drawings: 10, auxiliary tooling; 20, wheel; 200, through hole; 201, third assembly hole; 202, first nut; 203, second nut; 204, rim; 30, axle; 31, fixing part; 300, fixing column; 301, first fixing column; 302, second fixing column; 303, end; 32, outer half shaft; 1, support; 11, connecting part; 12, branch part; 121, second assembly hole; 2, fixing piece; 21, cushion block; 211, first resisting part; 212, second resisting part; 213, first end; 214, guiding part; 22, operating part; 23, first assembly hole; 231, internal thread; 24, perforation; 25, first circle. Detailed implementation manners

[0025] Here, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0026] If there are terms related to directional indication or positional relationship in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), then such terms are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.

[0027] Embodiments of the present application provide an auxiliary tooling 10, which is widely used in the fields of industrial production and manufacturing. During the machining process, it can be used to fix workpieces with complex shapes or large sizes to ensure the stability and precision of machining; during the assembly process of automotive parts, it can be used for precise positioning and fixing of complex vehicle bodies or components to improve the assembly efficiency and product quality; during the assembly of precision instruments, engine components or other composite structural parts, it can be used for high-precision fixing and positioning to ensure the stability and safety of the structure.

[0028] Refer to Figures 1 to 2 As shown, the auxiliary tooling 10 includes a support 1 and a plurality of fixing members 2 rotatably arranged on the support 1. The plurality of fixing members 2 are respectively provided with first assembly holes 23, and the inner wall of the first assembly holes 23 surrounding the first assembly holes 23 is provided with internal threads 231. The plurality of fixing members 2 are used to fix to a fixing column 300, and the fixing column 300 is assembled in the first assembly hole 23, and the internal thread 231 is threadedly connected to the external thread of the fixing column 300, ensuring precise fixing and positioning, thereby improving the assembly precision and reducing errors.

[0029] In some embodiments, the centers of the plurality of first assembly holes 23 are all on the circumference of the first circle 25. When fixing or supporting the plurality of fixing columns 300, it is ensured that the forces received by all the fixing columns 300 are evenly distributed. At the same time, it is ensured that the second circle formed by the plurality of fixing columns 300 is concentric with the first circle 25, improving the assembly precision and assembly efficiency.

[0030] The support 1 includes a connecting portion 11 and a plurality of branch portions 12 connected to the connecting portion 11. The plurality of fixing members 2 are respectively rotatably arranged on the branch portions 12. The distances between the centers of the plurality of first assembly holes 23 and the center point of the connecting portion 11 are all the same, that is, the lengths of the branch portions 12 are the same, ensuring that the installation positions of the fixing columns 300 on different branch portions 12 are consistent, improving the assembly precision and stability. At the same time, all the fixing members 2 are arranged around the same center point, so that when making adjustments and calibrations, only the offset or rotation of the center point of the auxiliary tooling 10 needs to be concerned, simplifying the operation process and improving the efficiency.

[0031] In the embodiments of the present application, the number of the branch portions 12 is five, and the present application does not limit the number of the branch portions 12.

[0032] In some embodiments, the number of the branch portions 12 is the same as the number of the fixing members 2.

[0033] Refer to Figure 1 And Figure 3As shown, the fixing member 2 includes a cushion block 21 and an operating part 22. A second assembly hole 121 is provided on the branch part 12. The cushion block 21 is assembled in the second assembly hole 121 and can move along the second assembly hole 121. The operating part 22 is located outside the second assembly hole 121. A first resisting part 211 is provided on the cushion block 21 or the operating part 22 for resisting against the branch part 12 to prevent the fixing member 2 from detaching from the branch part 12 in the first direction (i.e., Figure 3 the arrow direction in

[0034] ), ensuring that the fixing member 2 will not fall off the branch part 12 due to external force or vibration during operation, and improving the stability and reliability of the connection.

[0035] In some embodiments, the cushion block 21 and the operating part 22 are of a split design, and the cushion block 21 and the operating part 22 can be fixed by fixing methods such as welding, riveting, bonding or screwing.

[0036] In some embodiments, by making the outer diameter of the cushion block 21 located outside the second assembly hole 121 and on one side of the branch part 12 larger than the inner diameter of the second assembly hole 121, a first resisting part 211 is formed for resisting against the branch part 12.

[0037] In some embodiments, a first resisting part 211 can be provided on the outer edge of the operating part 22, making the outer diameter of the operating part 22 at the first resisting part 211 larger than the inner diameter of the second assembly hole 121 for resisting against the branch part 12.

[0038] In some embodiments, the cushion block 21 is made of a composite material, which can enhance the strength of the cushion block 21 and is heat-resistant and corrosion-resistant. The composite material can be, for example, GFRP (glass fiber reinforced plastic), CFRP (carbon fiber reinforced plastic), PA (polyamide), natural fiber composite material or metal matrix composite material, etc.

[0039] See Figure 4 and Figure 5 As shown, the fixing member 2 includes a second resisting part 212 provided on the outer side wall of the cushion block 21 for resisting against the branch part 12 to prevent the fixing member 2 from detaching from the branch part 12 in the second direction opposite to the first direction (i.e., Figure 5 the arrow direction in

[0040] ), preventing the fixing member 2 from detaching from the second assembly hole 121 in the second direction under the action of vibration or external force.

[0041] In some embodiments, the second retaining portion 212 may be an annular retaining portion sleeved outside the spacer 21.

[0042] In some embodiments, the second retaining portion 212 may also be a protruding portion arranged at intervals along the outer edge of the spacer 21 for retaining against the branch portion 12.

[0043] In some embodiments, in addition to the second retaining portion 212, other forms of fixing or locking devices may be adopted, such as riveting, snap fixing, spring clamping, etc.

[0044] In some embodiments, in cases where higher safety or additional protection is required, other forms of anti - detachment devices or safety locking mechanisms may be added, such as pins, card slots, etc.

[0045] See Figures 5 to 7 As shown, in some embodiments, the auxiliary tooling 10 is used to preliminarily fix the wheel 20 and the axle 30. The wheel 20 is provided with a through - hole 200, the axle 30 includes an outer half - shaft 32, and the outer half - shaft 32 is assembled into the through - hole 200. The wheel 20 includes a rim 204, and the axle 30 includes a plurality of fixing portions 31. The plurality of fixing portions 31 abut against the inner edge of the rim 204 to preliminarily fix the wheel 20 and the axle 30.

[0046] A fixing post 300 is arranged on the axle 30. The wheel 20 includes a third assembly hole 201. The fixing post 300 is assembled in the third assembly hole 201 and its end 303 is exposed. The spacer 21 is provided with a perforation 24. The inner diameter of the perforation 24 is larger than the outer diameter of the fixing post 300. When the end 303 of the fixing post 300 is assembled in the perforation 24, the first end 213 of the spacer 21 is located in the third assembly hole 201.

[0047] Assembling the first end 213 of the spacer 21 into the third assembly hole 201 helps to reduce the inner diameter of the third assembly hole 201. When the fixing post 300 is assembled into the perforation 24, it makes the fixing post 300 located at the central position of the third assembly hole 201, improving the assembly accuracy and reducing the misalignment phenomenon.

[0048] The spacer 21 has an inclined guiding portion 214. The outer diameter of the end of the guiding portion 214 far from the branch portion 12 is smaller than the outer diameter of the end close to the branch portion 12. The shape of the guiding portion 214 can play a guiding role to facilitate assembly into the third assembly hole 201.

[0049] In some embodiments, the guiding portion 214 may not be provided, but instead a guiding structure, such as balls, guide rails, guide grooves, etc., may be pre - machined or embedded in the third assembly hole 201.

[0050] See Figures 6 to 9As shown, the fixed column 300 includes a plurality of first fixed columns 301 and a plurality of second fixed columns 302. The number of the first fixed columns 301 is equal to that of the fixing members 2. After the fixing members 2 are fixed to the first fixed columns 301, the second fixed columns 302 are fixed to the first nuts 202 to preliminarily fix the wheel 20 and the axle 30.

[0051] After the second fixed columns 302 are fixed to the first nuts 202, the auxiliary tooling 10 is removed, and the first fixed columns 301 are fixed to the second nuts 203 to further fix the wheel 20 and the axle 30, which helps to improve the assembly efficiency and accuracy.

[0052] In some embodiments, the auxiliary tooling 10 may not be removed. The wheel 20 and the axle 30 are fixed by fixing the fixing members 2 to the first fixed columns 301 and the second fixed columns 302 to the first nuts 202, which simplifies the assembly process and improves the assembly efficiency.

[0053] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included within the scope of protection of this application.

Claims

1. An auxiliary tooling, characterized in that, It includes a support and a plurality of fixing members rotatably arranged on the support. The plurality of fixing members are used to fix to a fixing column. The plurality of fixing members are respectively provided with first assembly holes. The inner wall of the first assembly holes surrounding the first assembly holes is provided with internal threads. The fixing column is assembled in the first assembly holes, and the internal threads are threadedly connected to the external threads of the fixing column. The centers of the plurality of first assembly holes are all on the circumference of a first circle.

2. The auxiliary tooling according to claim 1, wherein The support includes a connecting portion and a plurality of branch portions connected to the connecting portion. The plurality of fixing members are respectively rotatably arranged on the branch portions. The distances between the centers of the plurality of first assembly holes and the center point of the connecting portion are all the same.

3. The auxiliary tooling according to claim 2, characterized in that, The fixing member includes a cushion block and an operating portion. The branch portion is provided with a second assembly hole. The cushion block is assembled in the second assembly hole and can move along the second assembly hole. The operating portion is located outside the second assembly hole. A first resisting portion is provided on the cushion block or the operating portion to resist against the branch portion to prevent the fixing member from disengaging from the branch portion in a first direction.

4. The auxiliary tooling according to claim 3, characterized in that, The cushion block is made of a composite material.

5. The auxiliary tooling according to claim 3, wherein, The fixing member includes a second resisting portion provided on the outer side wall of the cushion block to resist against the branch portion to prevent the fixing member from disengaging from the branch portion in a second direction opposite to the first direction.

6. The auxiliary tooling according to claim 3, wherein The auxiliary tooling is used to pre-fix a wheel and an axle. The fixing column is arranged on the axle. The wheel includes a third assembly hole. The fixing column is assembled in the third assembly hole and its end is exposed. The cushion block is provided with a perforation. The inner diameter of the perforation is larger than the outer diameter of the fixing column. When the end of the fixing column is assembled in the perforation, the first end of the cushion block is located inside the third assembly hole.

7. The auxiliary tooling according to claim 6, characterized in that, The cushion block has an inclined guiding portion to facilitate assembly into the third assembly hole.

8. The auxiliary tooling according to claim 7, characterized in that, The fixing column includes a plurality of first fixing columns and a plurality of second fixing columns. The number of the first fixing columns is equal to the number of the fixing members. After the fixing member is fixed to the first fixing column, the second fixing column is fixed to a first nut.

9. The auxiliary tooling according to claim 8, wherein After the second fixing column is fixed to the first nut, the auxiliary tooling is removed, and the first fixing column is fixed to a second nut.

10. The auxiliary tooling according to claim 8, wherein The plurality of first fixing columns and the plurality of second fixing columns are arranged at intervals along the circumferential direction of the wheel.

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