Brake shell clamp

Abstract

The utility model provides a brake shell clamp. The brake shell clamp comprises a base, an expansion mechanism, an angular positioning mechanism and a pressing mechanism. The expansion mechanism comprises a positioning seat, a first translation driving assembly and a plurality of expansion blocks, and the positioning seat is arranged on the base and used for being in positioning fit with a workpiece; a guide rail is arranged on the base, the angular positioning mechanism comprises a positioning plate and a locking piece, and the positioning plate is in sliding fit with the guide rail; the downward pressing mechanism comprises a downward pressing plate and a downward pressing driving assembly, and the downward pressing plate is arranged above the positioning base in a lifting mode. Compared with the prior art, the brake shell clamp presses the inner wall of a hole of a workpiece through the expansion mechanism, so that the position of the workpiece in the horizontal direction is limited, the horizontal angle of the workpiece is positioned through the angle positioning mechanism, the workpiece is pressed to the base through the downward pressing mechanism, and the position of the workpiece in the vertical direction is limited; accurate positioning of the workpiece is achieved, and the machining accuracy of the workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a brake housing clamp. Background Art

[0002] The drive axle is a device that transmits the forces acting in all directions between the frame and the front wheels and the bending moment and torque generated by them. The drive axle is equipped with brakes, which are important safety parts for vehicle braking.

[0003] The outer shell of the brake (hereinafter referred to as the "brake shell") needs to be clamped and positioned when undergoing processing operations such as drilling and milling. Currently, the tooling for clamping and positioning the brake shell only presses the brake shell onto the support seat through a lower pressure plate to achieve vertical clamping. The angle of the brake shell is uncertain, making it difficult to perform accurate processing. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and provide a brake housing clamp.

[0005] An embodiment of the utility model provides a brake housing clamp, comprising: a base, an expansion mechanism, an angular positioning mechanism and a pressing mechanism.

[0006] The expansion mechanism comprises a positioning seat, a first translation driving assembly and a plurality of expansion blocks, wherein the positioning seat is arranged on the base and is used for positioning and cooperating with the workpiece, and the plurality of expansion blocks are arranged in the base along a direction surrounding the positioning sleeve, and the first translation driving assembly is transmission-connected with the expansion blocks and is used for driving the expansion blocks to extend out of the base;

[0007] The base is provided with a guide rail, the guide rail extends toward the positioning seat, the angular positioning mechanism includes a positioning plate and a locking member, the positioning plate is slidably matched with the guide rail, the locking member is connected to the base and movably connected with the positioning plate to lock the position of the positioning plate;

[0008] The pressing mechanism comprises a pressing plate and a pressing drive assembly. The pressing plate is arranged above the positioning seat in a liftable manner, and the pressing drive assembly is drivingly connected to the pressing plate.

[0009] In some optional embodiments, two positioning parts are provided on one side of the positioning plate facing the positioning seat, and an escape space for evading workpieces is formed between the two positioning parts.

[0010] In some optional embodiments, the downward pressure drive assembly includes a lifting seat, a first elastic member, a first driving block and a second translation driving assembly, a lifting channel is provided on the base, the lifting seat is movably provided in the lifting channel, the first elastic member is provided on the base and connected to the bottom of the lifting seat, the first driving block is movably provided on the base, a first driving inclined surface which cooperates with the lifting seat is formed on the first driving block, the second translation driving assembly is drivingly connected to the first driving block, the lifting seat is connected to the lower pressure plate, when the second translation driving assembly drives the first driving block to translate, the first driving inclined surface moves relative to the lifting seat to drive the lifting seat to descend, the lifting seat descends to drive the lower pressure plate to descend and squeeze the first elastic member.

[0011] In some optional embodiments, a roller is rotatably provided on the lifting seat, and the first driving inclined surface is in rolling cooperation with the roller.

[0012] In some optional embodiments, a horizontal channel is provided in the base, the horizontal channel is connected to the lifting channel, an inner cavity connected to the horizontal channel is provided on the lifting seat, the roller is rotatably provided in the inner cavity, the first driving block is slidably provided in the horizontal channel, and movably penetrates the inner cavity.

[0013] In some optional embodiments, the first elastic member is a spring, a positioning groove is provided at the bottom of the lifting seat, the bottom end of the spring is connected to the base, and the top end of the spring extends into the positioning groove.

[0014] In some optional embodiments, the downward pressure drive assembly also includes a fine-tuning screw, a limit block and a second elastic member, the fine-tuning screw is arranged on the lifting seat, a blocking portion is arranged on the fine-tuning screw, the limit block is threadedly engaged with the fine-tuning screw, the downward pressure plate is movably arranged between the limit block and the blocking portion, and the two ends of the second elastic member are respectively connected to the downward pressure plate and the blocking portion.

[0015] In some optional embodiments, a protruding supporting step portion is provided on the side of the positioning seat.

[0016] In some optional embodiments, the first translation drive assembly is transmission-connected to a second drive block, a second drive ramp is provided on the second drive block, a guide ramp that slides with the second drive ramp is provided on the expansion block, and when the first translation drive assembly drives the second drive block to translate, the second drive ramp slides along the guide ramp and drives the expansion block to extend out of the positioning seat.

[0017] In some optional embodiments, a protruding pressing portion is provided at the bottom of the lower pressing plate.

[0018] Compared with the prior art, the brake shell clamp of the utility model presses the inner wall of the hole of the workpiece through the expansion mechanism, so that the horizontal position of the workpiece is limited, and the horizontal angle of the workpiece is positioned by the angle positioning mechanism. The pressing mechanism presses the workpiece toward the base, so that the position of the workpiece in the upper and lower directions is limited, the workpiece is accurately positioned, and the accuracy of workpiece processing is improved.

[0019] In order to more clearly understand the present invention, the specific implementation of the present invention will be described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a brake housing clamp according to an embodiment of the utility model;

[0021] Figure 2 This is a schematic structural diagram of a brake housing fixture and a workpiece according to an embodiment of the utility model;

[0022] Figure 3 A first cross-sectional view of a brake housing clamp according to an embodiment of the utility model;

[0023] Figure 4 A second cross-sectional view of a brake housing clamp according to an embodiment of the utility model;

[0024] Figure 5 A third cross-sectional view of a brake housing clamp according to an embodiment of the utility model;

[0025] Figure 6 It is a cross-sectional view of an angular positioning mechanism according to an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 10. Base; 11. Guide rail; 12. Lifting channel; 13. Horizontal channel; 20. Expansion mechanism; 21. Positioning seat; 22. First translation drive assembly; 23. Expansion block; 24. Support step portion; 25. Second drive block; 30. Angular positioning mechanism; 31. Positioning plate; 32. Locking member; 33. Positioning portion; 40. Pressing mechanism; 41. Pressing plate; 411. Pressing portion; 42. Pressing drive assembly; 43. Lifting seat; 431. Roller; 432. Inner cavity; 433. Positioning groove; 44. First elastic member; 45. First drive block; 46. Second translation drive assembly; 47. Fine-tuning screw; 471. Blocking portion; 48. Limiting block; 49. Second elastic member; 50. Workpiece. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1 An embodiment of the utility model provides a brake housing clamp, including: a base 10, an expansion mechanism 20, an angular positioning mechanism 30 and a pressing mechanism 40.

[0031] The expansion mechanism 20 includes a positioning seat 21, a first translation drive component 22 and a plurality of expansion blocks 23. The positioning seat 21 is set on the base 10 for positioning and cooperating with the workpiece 50. The plurality of expansion blocks 23 are arranged in the base 10 along the direction of the surrounding positioning sleeve. The first translation drive component 22 is transmission-connected with the expansion block 23 for driving the expansion block 23 to extend out of the base 10.

[0032] A guide rail 11 is provided on the base 10, and the guide rail 11 extends toward the positioning seat 21. The angular positioning mechanism 30 includes a positioning plate 31 and a locking member 32. The positioning plate 31 is slidably matched with the guide rail 11. The locking member 32 is connected to the base 10 and is movably connected to the positioning plate 31 to lock the position of the positioning plate 31; the pressing mechanism 40 includes a pressing plate 41 and a pressing drive assembly 42. The pressing plate 41 can be lifted and lowered above the positioning seat 21, and the pressing drive assembly 42 is drivingly connected to the pressing plate 41.

[0033] After the workpiece 50 is placed on the base 10, the positioning seat 21 extends into the hole of the workpiece 50, and then the first translation drive assembly 22 drives the expansion block 23 to press the inner wall of the hole of the workpiece 50, so that the horizontal position of the workpiece 50 is positioned. Subsequently, the positioning plate 31 moves along the guide track 11 so that the positioning plate 31 presses against the structure outside the workpiece 50, so that the workpiece 50 cannot rotate relative to the positioning seat 21, and the horizontal angle of the workpiece 50 is positioned. Then, the downward pressing drive assembly 42 drives the lower pressing plate 41 to descend, so that the lower pressing plate 41 presses against the top of the workpiece 50, thereby pressing the workpiece 50 on the base 10, achieving accurate positioning of the workpiece 50 and improving the accuracy of the processing of the workpiece 50.

[0034] In some optional embodiments, two positioning portions 33 are provided on the side of the positioning plate 31 facing the positioning seat 21, and an avoidance space for avoiding the workpiece 50 is formed between the two positioning portions 33. After the positioning plate 31 moves toward the workpiece 50, the two positioning portions 33 respectively abut against the protruding structures on both sides of the workpiece 50, so that the workpiece 50 cannot rotate relative to the positioning seat 21.

[0035] In some optional embodiments, the downward driving assembly 42 includes a lifting seat 43, a first elastic member 44, a first driving block 45 and a second translation driving assembly 46. The base 10 is provided with a lifting channel 12, the lifting seat 43 is movably arranged in the lifting channel 12, the first elastic member 44 is arranged on the base 10 and connected to the bottom of the lifting seat 43, the first driving block 45 is movably arranged on the base 10, and a first driving inclined surface movably matched with the lifting seat 43 is formed on the first driving block 45, and the second translation driving assembly 46 is drivingly connected to the first driving block 45. The lifting seat 43 is connected to the lower pressure plate 41. Based on the principle of the inclined wedge mechanism, the first driving block 45 changes the direction of the force by driving the inclined surface. When the second translation driving component 46 drives the first driving block 45 to translate, the first driving inclined surface moves relative to the lifting seat 43 to drive the lifting seat 43 to descend. The descent of the lifting seat 43 will drive the lower pressure plate 41 to descend, thereby achieving the clamping of the workpiece 50. At this time, the lifting seat 43 will squeeze the first elastic member 44. When the second translation driving component 46 drives the first driving block 45 to withdraw, the elastic force of the first elastic member 44 drives the lower pressure plate 41 to move upward.

[0036] In some optional embodiments, a roller 431 is rotatably provided on the lifting seat 43, and the first driving inclined surface rolls with the roller 431. The first driving inclined surface drives the lifting seat 43 to move through the roller 431. There is rolling friction between the first driving inclined surface and the roller 431, which is beneficial to reducing the friction between the lifting seat 43 and the first driving block 45.

[0037] In order to facilitate improving the stability of the cooperation between the first driving block 45 and the lifting seat 43, in some optional embodiments, a horizontal channel 13 is provided in the base 10, and the horizontal channel 13 is connected to the lifting channel 12. The lifting seat 43 is provided with an inner cavity 432 connected to the horizontal channel 13, and the roller 431 is rotatably set in the inner cavity 432. The first driving block 45 is slidably set in the horizontal channel 13 and movably penetrates the inner cavity 432.

[0038] In order to improve the stability of the first elastic member 44 so that the elastic force of the first elastic member 44 is stably applied to the lifting seat 43, in some optional embodiments, the first elastic member 44 is a spring, and a positioning groove 433 is provided at the bottom of the lifting seat 43. The bottom end of the spring is connected to the base 10, and the top end thereof extends into the positioning groove 433.

[0039] In order to facilitate fine-tuning the height of the lower pressure plate 41 and thus adapt to workpieces 50 of different sizes, in some optional embodiments, the lower pressure drive assembly 42 also includes a fine-tuning screw 47, a limit block 48 and a second elastic member 49. The fine-tuning screw 47 is arranged on the lifting seat 43, and a blocking portion 471 is arranged on the fine-tuning screw 47. The limit block 48 is threadedly matched with the fine-tuning screw 47. The lower pressure plate 41 is movably arranged between the limit block 48 and the blocking portion 471. The two ends of the second elastic member 49 are respectively connected to the lower pressure plate 41 and the blocking portion 471. The elastic force of the second elastic member 49 is used to press the lower pressure plate 41 against the limit block 48. When the limit block 48 moves along the fine-tuning thread, the height of the lower pressure plate 41 can be adjusted. In this embodiment, the limit block 48 is a nut and the second elastic member 49 is a spring.

[0040] In some optional embodiments, a protruding supporting step portion 24 is provided on the side of the positioning seat 21 , and the supporting step portion 24 is used to support the bottom of the workpiece 50 .

[0041] In some optional embodiments, the first translation drive component 22 is transmission-connected to the second drive block 25, a second drive bevel is provided on the second drive block 25, and a guide bevel that slides with the second drive bevel is provided on the expansion block 23. When the first translation drive component 22 drives the second drive block 25 to translate, the second drive bevel slides along the guide bevel and drives the expansion block 23 to extend out of the positioning seat 21. Based on the principle of the inclined wedge mechanism, the second drive block 25 changes the direction of force through the second drive bevel and the guide bevel, so that the first translation drive component 22 can drive the expansion block 23 to move horizontally below the positioning seat 21.

[0042] In some optional embodiments, a protruding pressing portion 411 is provided at the bottom of the lower pressing plate 41 , and the lower pressing plate 41 is pressed against the top of the workpiece 50 through the pressing portion 411 , which makes it convenient for the lower pressing plate 41 to press the workpiece 50 .

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A brake housing clamp, characterized in that: include: Base, expansion mechanism, angular positioning mechanism and pressing mechanism; The expansion mechanism comprises a positioning seat, a first translation driving assembly and a plurality of expansion blocks, wherein the positioning seat is arranged on the base and is used for positioning and cooperating with the workpiece, and the plurality of expansion blocks are arranged in the base along a direction surrounding the positioning sleeve, and the first translation driving assembly is transmission-connected with the expansion blocks and is used for driving the expansion blocks to extend out of the base; The base is provided with a guide rail, the guide rail extends toward the positioning seat, the angular positioning mechanism includes a positioning plate and a locking member, the positioning plate is slidably matched with the guide rail, the locking member is connected to the base and movably connected with the positioning plate to lock the position of the positioning plate; The pressing mechanism comprises a pressing plate and a pressing drive assembly. The pressing plate is arranged above the positioning seat in a liftable manner, and the pressing drive assembly is drivingly connected to the pressing plate.

2. A brake housing clamp according to claim 1, characterized in that: Two positioning parts are arranged on one side of the positioning plate facing the positioning seat, and an escape space for escaping a workpiece is formed between the two positioning parts.

3. A brake housing clamp according to claim 1, characterized in that: The downward pressing driving assembly includes a lifting seat, a first elastic member, a first driving block and a second translation driving assembly, a lifting channel is arranged on the base, the lifting seat is movably arranged in the lifting channel, the first elastic member is arranged on the base and connected to the bottom of the lifting seat, the first driving block is movably arranged on the base, a first driving inclined surface which cooperates with the lifting seat movably is formed on the first driving block, the second translation driving assembly is drivingly connected to the first driving block, the lifting seat is connected to the lower pressing plate, when the second translation driving assembly drives the first driving block to translate, the first driving inclined surface moves relative to the lifting seat to drive the lifting seat to descend, the lifting seat descends to drive the lower pressing plate to descend, and squeezes the first elastic member.

4. A brake housing clamp according to claim 3, characterized in that: A roller is rotatably arranged on the lifting seat, and the first driving inclined surface is in rolling cooperation with the roller.

5. A brake housing clamp according to claim 4, characterized in that: A horizontal channel is arranged in the base, and the horizontal channel is communicated with the lifting channel. An inner cavity communicated with the horizontal channel is arranged on the lifting seat. The roller is rotatably arranged in the inner cavity. The first driving block is slidably arranged in the horizontal channel and movably penetrates the inner cavity.

6. A brake housing clamp according to claim 3, characterized in that: The first elastic member is a spring, a positioning groove is arranged at the bottom of the lifting seat, the bottom end of the spring is connected to the base, and the top end of the spring extends into the positioning groove.

7. A brake housing clamp according to claim 3, characterized in that: The downward pressure driving assembly also includes a fine-tuning screw, a limit block and a second elastic member. The fine-tuning screw is arranged on the lifting seat. A blocking portion is arranged on the fine-tuning screw. The limit block is threadably matched with the fine-tuning screw. The downward pressure plate is movably arranged between the limit block and the blocking portion. The two ends of the second elastic member are respectively connected to the downward pressure plate and the blocking portion.

8. A brake housing clamp according to any one of claims 1 to 7, characterized in that: A protruding supporting step portion is arranged on the side surface of the positioning seat.

9. A brake housing clamp according to any one of claims 1 to 7, characterized in that: The first translation drive assembly is transmission-connected with a second drive block, a second drive inclined surface is arranged on the second drive block, and a guide inclined surface slidingly matched with the second drive inclined surface is arranged on the expansion block. When the first translation drive assembly drives the second drive block to translate, the second drive inclined surface slides along the guide inclined surface and drives the expansion block to extend out of the positioning seat.

10. A brake housing clamp according to any one of claims 1 to 7, characterized in that: A protruding pressing portion is arranged at the bottom of the lower pressing plate.

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