Brake bottom plate clamp

Abstract

The utility model discloses a brake bottom plate clamp which comprises a base, a drill jig assembly and a positioning assembly. The drill jig assembly comprises a support fixed to the base and a drill jig plate fixed to the support, the drill jig plate is located above the base, the top face of the drill jig plate is downwards provided with a die hole used for being matched with a drilling tool, and the die hole vertically penetrates through the drill jig plate. The positioning assembly is located on one side of the drill jig assembly and comprises a positioning seat, a positioning block and a positioning pin, the positioning seat is fixed to the base, an inclined face inclined relative to the axis of the die hole is formed on the side, close to the drill jig plate, of the positioning seat, and the positioning block and the positioning pin are fixed to the inclined face. The axis of the positioning block is perpendicular to the inclined face so that the to-be-machined inclined face of the brake bottom plate can be in a horizontal state. By fixing the drill plate on the support, the drill plate can be prevented from swinging under the action of external force, so that the drill plate is stably positioned, the positioning precision is improved, and the condition that a tooth hole is deviated during drilling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning devices, in particular to a brake base plate clamp. Background Art

[0002] The brake base plate needs to be clamped to position it when processing the thread hole, wherein the thread hole is opened on an inclined surface. The existing brake base plate clamp includes a base, a positioning assembly and a drilling template. The positioning assembly includes a positioning seat and a positioning block. The positioning seat is fixed to the top surface of the base and has a mounting inclined surface formed on its top. The positioning block is used to cooperate with the center hole of the brake base plate and is fixed on the mounting inclined surface so that the inclined surface of the brake base plate is horizontal. The first end of the drilling template is parallel to the mounting inclined surface and is hinged to the top of the positioning seat. The second end of the drilling template is provided with a mold hole for cooperating with a drilling tool and is horizontal so that the axis of the mold hole coincides with the axis of the thread hole. However, the above-mentioned brake base plate clamp is not accurately positioned, and the thread hole is easily drilled off-center. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a brake base plate clamp which has a simple structure and improves positioning accuracy by fixing a drilling template on a support.

[0004] To achieve the above purpose, the embodiment of the utility model adopts the following technical solutions:

[0005] A brake base plate fixture, comprising a base and a drilling jig assembly and a positioning assembly connected to the base;

[0006] The drilling template assembly includes a support fixed on the base and a drilling template fixed on the support, the drilling template is located above the base and has a template hole for cooperating with a drilling tool on its top surface downwardly, and the template hole passes through the drilling template from top to bottom;

[0007] The positioning assembly is located on one side of the drilling template assembly and includes a positioning seat, a positioning block for cooperating with the center hole of the brake base plate, and a positioning pin for cooperating with the through hole of the brake base plate and located on one side of the positioning block. The positioning seat is fixed on the base and a side thereof close to the drilling template is formed with an inclined surface inclined relative to the axis of the template hole. The positioning block and the positioning pin are fixed on the inclined surface, and the axis of the positioning block is perpendicular to the inclined surface so that the inclined surface to be processed of the brake base plate is in a horizontal state.

[0008] Furthermore, an outer side wall of the support is provided with a mounting hole penetrating the support, the mounting hole extends in the up-down direction and is equipped with bolts for connecting the support and the drilling template.

[0009] Furthermore, a connecting plate is fixed to the drilling template near the first end of the support, and a fixing hole is provided on the surface of the connecting plate, the fixing hole corresponds to the mounting hole, and the two ends of the bolt respectively cooperate with the mounting hole and the fixing hole.

[0010] Furthermore, a fitting hole is provided at the second end of the drilling template away from the support, a bushing is gap-fitted in the fitting hole, the inner hole of the bushing is the mold hole, and a relief slope is formed on the end face of the second end, and the lower end of the relief slope is inclined relative to the upper end in a direction away from the support.

[0011] Furthermore, the positioning block includes a fixing column and a positioning sleeve for cooperating with the center hole, the fixing column is perpendicular to the inclined surface and has a connecting end and a fixed end relative to the connecting end and close to the inclined surface, the fixed end is fixed on the inclined surface, and the inner hole of the positioning sleeve cooperates with the connecting end.

[0012] Furthermore, the positioning seat is recessed from the inclined surface and in a direction perpendicular to the inclined surface to form a limiting hole, and the end surface of the fixed end protrudes in a direction perpendicular to the inclined surface to form a limiting column, and the limiting column is gap-matched with the limiting hole.

[0013] Furthermore, the outer peripheral wall of the fixed end forms a lower step portion, the diameter of the lower step portion is larger than the diameter of the connecting end, and the end face of the lower step portion is fitted with the inclined surface; the outer peripheral wall of one end of the positioning sleeve forms an upper step portion for supporting the brake base plate and fitting with the lower step portion, the diameter of the upper step portion is larger than the diameter of the other end of the positioning sleeve, and the end face of the upper step portion is fitted with the inclined surface.

[0014] Furthermore, the positioning seat includes a seat body and a positioning plate, the seat body is fixed on the top surface of the base and a mounting slope inclined relative to the mold hole is formed on the side close to the drilling template, the lower end of the mounting slope is inclined toward the mold hole relative to the upper end, the positioning plate is fixed on the mounting slope and the two are in contact, and the upper plate surface of the positioning plate forms the inclined surface.

[0015] Furthermore, a positioning hole penetrating through the lower surface of the positioning plate is downwardly opened on the upper surface of the positioning plate, the positioning hole is located above the positioning block and is fitted with a positioning pin therein, and the positioning pin passes upward through the upper surface of the positioning plate.

[0016] Furthermore, a sleeve is fitted in the positioning hole, the positioning pin is fitted in the sleeve and its bottom end passes downward through the lower plate surface of the positioning plate, and the outer peripheral wall of the lower end of the positioning pin protrudes outward with an annular positioning portion, and the positioning portion abuts against the bottom surface of the sleeve.

[0017] The brake base plate clamp of the utility model can prevent the drilling template from swinging under the action of external force by fixing the drilling template on the support, so that the drilling template can be positioned stably, thereby improving the positioning accuracy, avoiding the occurrence of deviation of the tooth hole drilling, and has a simple structure, easy installation and convenient clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial exploded perspective view of the brake base plate clamp of the embodiment of the utility model;

[0019] Figure 2 for Figure 1 A three-dimensional composite diagram of the usage status;

[0020] Figure 3 for Figure 2 A cross-sectional view of

[0021] Figure 4 for Figure 3 A cross-sectional view of another embodiment of the present invention. DETAILED DESCRIPTION

[0022] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0023] like Figures 1 to 4 As shown, an embodiment of the utility model provides a brake base plate clamp for clamping the brake base plate 100 when drilling the tooth hole 104 of the brake base plate 100. The brake base plate clamp includes a base 1 and a drilling template assembly 2 and a positioning assembly 3 connected to the base 1.

[0024] like Figures 1 to 3 As shown, the drilling template assembly 2 includes a support 21 fixed to the base 1 by welding or bolts and a drilling template 22 fixed to the support 21. The drilling template 22 is located above the base 1 and has a die hole 221 for cooperating with a drilling tool on its top surface downward. The die hole 221 passes through the drilling template 22 from top to bottom. When drilling the tooth hole 104 of the brake base plate 100, the drilling tool moves to the inclined surface 103 to be processed of the brake base plate 100 under the guidance of the die hole 221. By fixing the drilling template 22 to the support 21, the drilling template 22 can be prevented from swinging under the action of external force, so that the positioning of the drilling template 22 is stable, thereby improving the positioning accuracy, avoiding the occurrence of deviation of the tooth hole 104, and having a simple structure, easy installation and convenient clamping.

[0025] like Figure 4As shown, in another embodiment, the outer wall of the support 21 is provided with a mounting hole 211 penetrating the support 21, the mounting hole 211 extends in the up-down direction and is provided with a bolt (not numbered) for connecting the support 21 and the drilling template 22. Specifically, a connecting plate 223 is fixed to the first end 222 of the drilling template 22 close to the support 21 by screws, and optionally, the connecting plate 33 is integrally formed with the drilling template 22, which can be selected according to actual conditions; a fixing hole penetrating the connecting plate 223 is provided on the plate surface, and the fixing hole corresponds to the mounting hole 211, and the two ends of the bolt are respectively matched with the mounting hole 211 and the fixing hole to lock the drilling template 22 and the support 21. When the height of the drilling template 22 needs to be adjusted, the bolt is first loosened, and then the drilling template 22 is slid upward or downward to the target position, and then the bolt is tightened to complete the height adjustment of the drilling template 22. A matching hole 2241 is provided at the second end 224 of the drilling template 22 away from the support 21, and a bushing 225 is gap-fitted in the matching hole 2241. The inner hole of the bushing 225 is the mold hole 221. When the bushing 225 needs to be replaced, the bushing 225 is directly removed, and then another bushing 225 is installed in the matching hole 2241, so replacement is convenient. In order to avoid interference, a yield slope 2241 is formed on the end face of the second end 224, and the lower end of the yield slope 2241 is inclined relative to the upper end in a direction away from the support 21.

[0026] like Figures 1 to 3 As shown, the positioning assembly 3 is located on one side of the drilling template assembly 2 and includes a positioning seat 31, a positioning block 32 for cooperating with the center hole 101 of the brake base plate 100, and a positioning pin 33 for cooperating with the through hole 102 of the brake base plate 100 and located on one side of the positioning block 32. The positioning seat 31 is fixed to the base 1 by welding or screws, and a side thereof close to the drilling template 22 is formed with an inclined surface 311 inclined relative to the axis of the die hole 221. The positioning block 32 and the positioning pin 33 are fixed on the inclined surface 311, and the axis of the positioning block 32 is perpendicular to the inclined surface 311, so that the inclined surface 103 to be processed is in a horizontal state, ensuring that the inclined surface 103 to be processed is perpendicular to the axis of the die hole 221, which is convenient for drilling processing. In this embodiment, there are two positioning pins 33, one positioning pin 33 cooperates with a through hole 102 to achieve radial limiting of the brake base plate 100.

[0027] like Figures 1 to 3As shown, in this embodiment, the positioning seat 31 includes a seat body 313 and a positioning plate 314. The seat body 313 is fixed on the top surface of the base 1 and a mounting inclined surface 3131 is formed on the side close to the drilling template 22, which is inclined relative to the die hole 221. The lower end of the mounting inclined surface 3131 is inclined relative to the upper end toward the die hole 221. The positioning plate 314 is fixed on the mounting inclined surface 3131 by screws and the two are in contact. The upper plate surface of the positioning plate 314 forms the inclined surface 311. The upper plate surface of the positioning plate 314 is downwardly provided with a positioning hole 3141 that passes through the lower plate surface of the positioning plate 314. The positioning hole 3141 is located above the positioning block 32 and is gap-fitted with a positioning pin 33. The positioning pin 33 passes upward through the upper plate surface of the positioning plate 314 to cooperate with the through hole 102. In order to improve the positioning accuracy, a sleeve 3142 is fitted in a positioning hole 3141, and the positioning pin 33 is fitted in the sleeve 3142 and its bottom end passes downward through the lower plate surface of the positioning plate 314. The outer peripheral wall of the lower end of the positioning pin 33 protrudes outward with an annular positioning portion 331, and the positioning portion 331 is abutted against the bottom surface of the sleeve 3142 to limit the upward movement of the positioning plate 314.

[0028] like Figures 1 to 3 As shown, the positioning block 32 includes a fixed column 321 and a positioning sleeve 322 for matching with the center hole 101. The fixed column 321 is perpendicular to the inclined surface 311 and has a connecting end 3211 and a fixed end 3212 close to the inclined surface 311 relative to the connecting end 3211. The fixed end 3212 is fixed to the inclined surface 311 by screws, and the inner hole of the positioning sleeve 322 matches with the connecting end 3211. In order to improve the positioning accuracy and stability, the positioning seat 31 is recessed from the inclined surface 311 and in a direction perpendicular to the inclined surface 311 to form a limiting hole 312. Specifically, the positioning plate 314 is recessed from its upper plate surface and in a direction perpendicular to the upper plate surface to form a limiting hole 312. The end surface of the fixed end 3212 protrudes in a direction perpendicular to the inclined surface 311 to form a limiting column 3213. The limiting column 3213 and the limiting hole 312 are clearance-matched to radially limit the fixed column 321. The outer peripheral wall of the fixed end 3212 forms a lower step portion 3214 for supporting the positioning sleeve 322, the diameter of the lower step portion 3214 is larger than the diameter of the connecting end 3211, and the end face of the lower step portion 3214 is in contact with the inclined surface 311; the outer peripheral wall of one end of the positioning sleeve 322 forms an upper step portion 3221 for supporting the brake base plate 100 and in contact with the lower step portion 3214, the diameter of the upper step portion 3221 is larger than the diameter of the other end of the positioning sleeve 322, and the end face of the upper step portion 3221 is in contact with the inclined surface 311.

[0029] When drilling the tooth hole 104, first put the brake base plate 100 on the positioning sleeve 322, and respectively match the two through holes 102 of the brake base plate 100 with the two positioning pins 33 to complete the clamping. Then the drilling tool moves to the inclined surface 103 to be processed under the guidance of the mold hole 221, and the drilling operation is performed. It can be seen that the clamping is convenient.

[0030] The brake base plate clamp of the utility model can prevent the drilling template from swinging under the action of external force by fixing the drilling template on the support, so that the drilling template can be positioned stably, thereby improving the positioning accuracy, avoiding the occurrence of deviation of the tooth hole drilling, and has a simple structure, easy installation and convenient clamping.

[0031] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Brake base plate fixture, characterized in that: It comprises a base and a drilling template assembly and a positioning assembly connected to the base; The drilling template assembly includes a support fixed on the base and a drilling template fixed on the support, the drilling template is located above the base and has a template hole for cooperating with a drilling tool on its top surface downwardly, and the template hole passes through the drilling template from top to bottom; The positioning assembly is located on one side of the drilling template assembly and includes a positioning seat, a positioning block for cooperating with the center hole of the brake base plate, and a positioning pin for cooperating with the through hole of the brake base plate and located on one side of the positioning block. The positioning seat is fixed on the base and a side thereof close to the drilling template is formed with an inclined surface inclined relative to the axis of the template hole. The positioning block and the positioning pin are fixed on the inclined surface, and the axis of the positioning block is perpendicular to the inclined surface so that the inclined surface to be processed of the brake base plate is in a horizontal state.

2. The brake base plate fixture according to claim 1, characterized in that: The outer side wall of the support is provided with a mounting hole penetrating the support inwardly, the mounting hole extends in the up-down direction and is equipped with bolts for connecting the support and the drilling template.

3. The brake base plate fixture according to claim 2, characterized in that: A connecting plate is fixed to the first end of the drilling template close to the support, and a fixing hole is provided on the plate surface of the connecting plate, the fixing hole corresponds to the mounting hole, and two ends of the bolt cooperate with the mounting hole and the fixing hole respectively.

4. The brake base plate fixture according to claim 1, characterized in that: The second end of the drilling template away from the support is provided with a matching hole penetrating therethrough, a bushing is gap-fitted in the matching hole, the inner hole of the bushing is the mold hole, and the end face of the second end is formed with a relief slope, the lower end of the relief slope is inclined relative to the upper end in a direction away from the support.

5. The brake base plate fixture according to claim 1, characterized in that: The positioning block includes a fixing column and a positioning sleeve for cooperating with the center hole. The fixing column is perpendicular to the inclined surface and has a connecting end and a fixing end close to the inclined surface relative to the connecting end. The fixing end is fixed on the inclined surface, and the inner hole of the positioning sleeve cooperates with the connecting end.

6. The brake base plate fixture according to claim 5, characterized in that: The positioning seat is recessed from the inclined surface and in a direction perpendicular to the inclined surface to form a limiting hole, and the end surface of the fixed end protrudes in a direction perpendicular to the inclined surface to form a limiting column, and the limiting column is gap-matched with the limiting hole.

7. The brake base plate fixture according to claim 5, characterized in that: The outer peripheral wall of the fixed end protrudes to form a lower step portion, the diameter of the lower step portion is larger than the diameter of the connecting end, and the end face of the lower step portion is in contact with the inclined surface; the outer peripheral wall of one end of the positioning sleeve protrudes to form an upper step portion for supporting the brake base plate and in contact with the lower step portion, the diameter of the upper step portion is larger than the diameter of the other end of the positioning sleeve, and the end face of the upper step portion is in contact with the inclined surface.

8. The brake base plate fixture according to claim 1, characterized in that: The positioning seat includes a seat body and a positioning plate. The seat body is fixed on the top surface of the base and a mounting slope is formed on the side close to the drilling template, which is inclined relative to the mold hole. The lower end of the mounting slope is inclined toward the mold hole relative to the upper end. The positioning plate is fixed on the mounting slope and the two are in contact with each other. The upper plate surface of the positioning plate forms the inclined surface.

9. The brake base plate fixture according to claim 8, characterized in that: The upper plate surface of the positioning plate is downwardly provided with a positioning hole penetrating the lower plate surface of the positioning plate. The positioning hole is located above the positioning block and is fitted with a positioning pin therein. The positioning pin passes upward through the upper plate surface of the positioning plate.

10. The brake base plate fixture according to claim 9, characterized in that: A sleeve is fitted in the positioning hole, the positioning pin is fitted in the sleeve and its bottom end passes downward through the lower plate surface of the positioning plate, and an annular positioning portion protrudes outward from the outer peripheral wall of the lower end of the positioning pin, and the positioning portion abuts against the bottom surface of the sleeve.

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