Tool for assembling output shaft of EPB

Abstract

The utility model belongs to the technical field of frock clamp, concretely relates to a frock for EPB output shaft assembly, including bottom plate, the top edge of bottom plate is fixedly connected with a plurality of guide rods perpendicularly, the horizontal sliding connection of guide rod has top plate, the side wall of bottom plate is equipped with mounting slot, the inside of mounting slot is detachably provided with limit block, the one end of limit block is equipped with lower limit hole to bottom plate center, the center of top plate is equipped with mounting hole, the inside of mounting hole is detachably provided with limit ring, the top of limit ring is fixedly connected with limit plate perpendicularly, the center of limit plate and limit ring is equipped with upper limit hole. The utility model has the advantages that through being provided with limit block, upper limit hole, limit plate and lower limit hole, the quick assembly of different diameter EPB output shaft can be realized, the applicability of frock is effectively improved, thereby effectively improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically to a tooling for assembling an EPB output shaft. Background Technology

[0002] The EPB (Electronic Parking Brake Motor) is the core actuator of the Electronic Parking Brake (EPB) system. It converts electrical energy into mechanical energy to drive the brake calipers, enabling the vehicle to park and release. Compared to traditional mechanical handbrakes, EPB motors offer advantages such as high automation, ease of operation, and strong integration, making them an essential component of modern automotive braking systems. The EPB motor output shaft is one of the core components enabling the EPB motor's parking braking function. Its main function is to convert the motor's rotational motion into mechanical force, which is then transmitted to the brake calipers via a transmission mechanism (such as a screw or gear), clamping or releasing the brake pads to complete the vehicle's parking brake operation.

[0003] The output shaft of an EPB motor requires tooling for assembly. However, for output shafts of different diameters and lengths, separate tooling is often required for assembly, resulting in low applicability, high cost, and potential impact on assembly efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing EPB output shaft assembly fixtures are difficult to assemble EPB output shafts of different sizes and have low assembly efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A tooling for assembling an EPB output shaft includes a base plate. A plurality of guide rods are vertically fixedly connected to the top edge of the base plate. A top plate is horizontally slidably connected between the guide rods. A mounting groove is formed on the side wall of the base plate. A limit block is detachably provided inside the mounting groove. A lower limit hole is formed at one end of the limit block facing the center of the base plate. A mounting hole is formed at the center of the top plate. A limit ring is detachably provided inside the mounting hole. A limit plate is horizontally fixedly connected to the top of the limit ring. An upper limit hole is formed at the center of the limit plate and the limit ring. A pair of limiting mechanisms are symmetrically arranged on both sides of the bottom of the base plate. Each limiting mechanism includes a threaded sleeve, and a lead screw is threadedly connected to the inner side of the threaded sleeve.

[0007] Furthermore, a handle is fixedly connected to the top of the lead screw, and an elastic top block is fixedly connected to the top of the handle.

[0008] Furthermore, several springs connect the bottom plate and the top plate.

[0009] Furthermore, the lower limit hole and the upper limit hole are coaxially arranged, and the top edge of the limit plate and the top of the top plate are provided with a number of threaded holes around the upper limit hole. The limit plate and the top plate are detachably connected by a bolt assembly.

[0010] Furthermore, a locking mechanism is provided at the connection between the limiting block and the side wall of the base plate. The locking mechanism includes a sliding groove, which is horizontally arranged at the connection between the base plate and the limiting block. A locking block is slidably connected inside the sliding groove, and a locking slot is provided at the connection between the limiting block and the sliding groove. The sliding groove and the locking slot are in communication.

[0011] Furthermore, a stop block is fixedly connected to the end of the card block away from the limiting block, and a limiting groove is provided at the end of the slide groove away from the limiting block, with the stop block slidably connected inside the limiting groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The tooling for assembling EPB output shafts of this utility model, by setting limit blocks, upper limit holes, limit plates and lower limit holes, can realize the rapid assembly of EPB output shafts of different diameters, effectively improving the applicability of the tooling and thus effectively improving the assembly efficiency.

[0014] 2. The EPB output shaft assembly fixture of this utility model, by setting a limit mechanism, can realize the adjustment of the assembly distance, thereby enabling the assembly of EPB output shafts of different lengths, further improving the applicability of the fixture, and at the same time avoiding damage to the EPB output shaft during assembly. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the tooling for assembling the EPB output shaft of this utility model.

[0016] Figure 2 This is a schematic diagram of the lower structure of the tooling for assembling the EPB output shaft of this utility model.

[0017] Figure 3 This is a schematic diagram of the tooling clamping mechanism for assembling the EPB output shaft of this utility model.

[0018] Figure 4 This is a schematic diagram of the tooling limiting mechanism for assembling the EPB output shaft of this utility model.

[0019] In the diagram: 1. Base plate; 2. Top plate; 3. Guide rod; 4. Spring; 5. Limiting block; 6. Engaging mechanism; 601. Slide groove; 602. Slot; 603. Limiting groove; 604. Locking block; 605. Stop block; 7. Limiting plate; 8. Limiting mechanism; 801. Threaded sleeve; 802. Lead screw; 803. Handle; 804. Elastic top block; 9. Limiting ring; 10. Upper limiting hole; 11. Lower limiting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4The EPB output shaft assembly fixture of this embodiment includes a base plate 1. A plurality of guide rods 3 are vertically fixedly connected to the top edge of the base plate 1. A top plate 2 is horizontally slidably connected between the guide rods 3. A mounting groove is provided on the side wall of the base plate 1. A limit block 5 is detachably provided inside the mounting groove. A lower limit hole 11 is provided at the end of the limit block 5 facing the center of the base plate 1 for limiting the bottom end of the EPB output shaft. A mounting hole is provided at the center of the top plate 2. A limit ring 9 is detachably provided inside the mounting hole. A limit plate 7 is horizontally fixedly connected to the top of the limit ring 9. An upper limit hole 10 is provided at the center of the limit plate 7 and the limit ring 9 for limiting the bottom end of the EPB output shaft. The top of the output shaft is limited. A pair of limiting mechanisms 8 are symmetrically arranged on both sides of the bottom of the base plate 1 to limit the assembly distance of the EPB output shaft. The limiting mechanism 8 includes a threaded sleeve 801, and a lead screw 802 is threadedly connected to the inner side of the threaded sleeve 801. A handle 803 is fixedly connected to the top of the lead screw 802, and an elastic top block 804 is fixedly connected to the top of the handle 803. Several springs 4 are connected between the base plate 1 and the top plate 2. The lower limiting hole 11 and the upper limiting hole 10 are coaxially arranged. Several threaded holes are opened around the upper limiting hole 10 on the top edge of the limiting plate 7 and the top of the top plate 2. The limiting plate 7 and the top plate 2 are detachably connected by a bolt assembly. During assembly, select a limiting block 5 and a limiting plate 7 that match the diameter of the EPB output shaft and install them in the middle of the base plate 1 and top plate 2 respectively. When installing the limiting block 5, insert the end of the limiting block 5 with the lower limiting hole 11 into the mounting groove on the side wall of the base plate 1, and then fix the limiting block 5 by the locking mechanism 6. When installing the limiting plate 7, insert the limiting ring 9 at the bottom of the limiting plate 7 into the mounting hole in the middle of the top plate 2, and then connect the limiting plate 7 to the top plate 2 by the bolt assembly. Then rotate the handle 803 to make the lead screw 802 rise and fall inside the threaded sleeve 801. When the lead screw 802 moves, it drives the elastic top block 804 at its top to move accordingly until the height of the elastic top block 804 is the same as that of the EPB output shaft. Stop when the assembly distance matches; after adjustment, insert the top of the EPB output shaft into the limit block 5 along the lower limit block 11 until the bottom of the EPB output shaft is flush with the bottom of the limit block 5. At this time, the EPB output shaft can be limited through the lower limit hole 11. Then, place the workpiece to be assembled in the upper limit hole 10 in the center of the limit plate 7. The workpiece to be assembled is limited through the upper limit hole 10. Finally, the pressing mechanism applies downward pressure to the top plate 2 and the workpiece to be assembled, so that the top plate 2 and the workpiece to be assembled move downward along the guide rod 3 until the bottom of the top plate 2 abuts against the top of the elastic top block 4. At this time, the workpiece to be assembled is pressed onto the top of the EPB output shaft, realizing the assembly of the EPB output shaft.

[0022] A locking mechanism 6 is provided at the connection between the limiting block 5 and the side wall of the base plate 1. The locking mechanism 6 includes a sliding groove 601, which is horizontally set at the connection between the base plate 1 and the limiting block 5. A locking block 604 is slidably connected inside the sliding groove 601. A locking groove 602 is provided at the connection between the limiting block 5 and the sliding groove 601, and the sliding groove 601 and the locking groove 602 are in communication. A stop block 605 is fixedly connected to the end of the locking block 604 away from the limiting block 5. A limiting groove 603 is provided at the end of the sliding groove 601 away from the limiting block 5, and the stop block 605 is slidably connected inside the limiting groove 603. When the locking mechanism 6 fixes the limiting block 5, the locking block 604 slides towards the locking groove 602 until the locking block 604 is locked into the inside of the locking groove 602, thereby limiting the locking block 5. When the locking block 604 moves, it drives the stop block 605 at its other end to move along the limiting groove 603. The stop block 605 and the limiting groove 603 limit the locking block 604 and prevent the locking block 604 from slipping off.

[0023] Working principle: During assembly, select a limiting block 5 and a limiting plate 7 that match the diameter of the EPB output shaft and install them in the middle of the base plate 1 and top plate 2 respectively. When installing the limiting block 5, insert the end of the limiting block 5 with the lower limiting hole 11 into the mounting groove on the side wall of the base plate 1, and then fix the limiting block 5 by the locking mechanism 6. When fixing, slide the locking block 604 towards the locking groove 602 until the locking block 604 is engaged in the inside of the locking groove 602, thereby limiting the limiting block 5. When the locking block 604 moves, it drives the stop block 605 at its other end to move along the limiting groove 603. The stop block 605 and the limiting groove 603 limit the locking block 604 and prevent the locking block 604 from slipping out. When installing the limiting plate 7, insert the limiting ring 9 at the bottom of the limiting plate 7 into the mounting hole in the middle of the top plate 2, and then connect the limiting plate 7 to the top plate 2 by the bolt assembly. Then turn the handle 803 so that the lead screw 802 Inside the threaded sleeve 801, the screw 802 moves, causing the elastic top block 804 at its top to move accordingly, until the height of the elastic top block 804 matches the assembly distance of the EPB output shaft. After adjustment, the top of the EPB output shaft is inserted into the limit block 5 along the lower limit block 11 until the bottom of the EPB output shaft is flush with the bottom of the limit block 5. At this time, the EPB output shaft can be limited through the lower limit hole 11. Then, the workpiece to be assembled is placed in the upper limit hole 10 in the center of the limit plate 7. The workpiece to be assembled is limited through the upper limit hole 10. Finally, the pressing mechanism applies downward pressure to the top plate 2 and the workpiece to be assembled, causing the top plate 2 and the workpiece to be assembled to move downward along the guide rod 3 until the bottom of the top plate 2 abuts against the top of the elastic top block 4. At this time, the workpiece to be assembled is pressed onto the top of the EPB output shaft, realizing the assembly of the EPB output shaft.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling for assembling an EPB output shaft, characterized in that: The base plate (1) is vertically fixed to a number of guide rods (3) at its top edge. A top plate (2) is horizontally slidably connected between the guide rods (3). The side wall of the base plate (1) is provided with an installation groove. A limit block (5) is detachably provided inside the installation groove. A lower limit hole (11) is provided at one end of the limit block (5) facing the center of the base plate (1). An installation hole is provided at the center of the top plate (2). A limit ring (9) is detachably provided inside the installation hole. A limit plate (7) is horizontally fixed to the top of the limit ring (9). An upper limit hole (10) is provided at the center of the limit plate (7) and the limit ring (9). A pair of limit mechanisms (8) are symmetrically provided on both sides of the bottom of the base plate (1). The limit mechanism (8) includes a threaded sleeve (801). A screw rod (802) is threadedly connected to the inner side of the threaded sleeve (801).

2. The tooling for assembling an EPB output shaft according to claim 1, characterized in that: A handle (803) is fixedly connected to the top of the lead screw (802), and an elastic top block (804) is fixedly connected to the top of the handle (803).

3. The tooling for assembling an EPB output shaft according to claim 1, characterized in that: Several springs (4) are connected between the bottom plate (1) and the top plate (2).

4. The tooling for assembling an EPB output shaft according to claim 1, characterized in that: The lower limiting hole (11) and the upper limiting hole (10) are coaxially arranged. The top edge of the limiting plate (7) and the top of the top plate (2) are provided with several threaded holes around the upper limiting hole (10). The limiting plate (7) and the top plate (2) are detachably connected by bolt assembly.

5. The tooling for assembling an EPB output shaft according to claim 1, characterized in that: A locking mechanism (6) is provided at the connection between the limiting block (5) and the side wall of the base plate (1). The locking mechanism (6) includes a sliding groove (601). The sliding groove (601) is horizontally arranged at the connection between the base plate (1) and the limiting block (5). A locking block (604) is slidably connected inside the sliding groove (601). A locking slot (602) is provided at the connection between the limiting block (5) and the sliding groove (601). The sliding groove (601) and the locking slot (602) are connected.

6. The tooling for assembling an EPB output shaft according to claim 5, characterized in that: The end of the card block (604) away from the limiting block (5) is fixedly connected to a stop block (605), and the end of the slide groove (601) away from the limiting block (5) is provided with a limiting groove (603). The stop block (605) is slidably connected inside the limiting groove (603).

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