Multi-point jacking type rear brake disc turning positioning clamp

Abstract

The utility model discloses a multi-point jacking type rear brake disc turning and positioning fixture, which relates to the technical field of rear brake disc turning and positioning fixtures, and comprises a base, a fixed seat, a movable seat, a clamping pressure block and a positioning disc, and the fixed seat, the movable seat, the clamping pressure block and the positioning disc are positioned above the base. The positioning disc is located in the center of the base and fixed to the fixed seats, the fixed seats and the movable seats are evenly distributed on the periphery of the positioning disc with the vertical axial direction of the positioning disc as the symmetry axis, the clamping pressing blocks are fixed to the movable seats, and clamping parts distributed in the radial direction of the positioning disc are arranged at the tops of the clamping pressing blocks. And a first jacking reference point and a second jacking reference point which correspond to the clamping parts in position are arranged on the positioning disc in the radial direction. By arranging the clamping pressing block, the first jacking reference point and the second jacking reference point, after improvement, a multi-point type jacking mode is adopted as a turning jacking mode, an original three-point jacking mode is changed, clamping is stable, disc face jumping is reduced, brake disc deformation is reduced, and the yield is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rear brake disc turning and positioning fixtures, specifically a multi-point top-holding rear brake disc turning and positioning fixture. Background Technology

[0002] The brake disc is the friction pair of a disc brake. In addition to having the strength and rigidity required as a component, it should also have the highest possible and most stable brake disc runout, as well as appropriate wear resistance, heat resistance, heat dissipation and heat capacity. To achieve stable brake disc runout, the machining stability of the brake surface is essential.

[0003] Currently, when machining brake discs, the cutting tools used to cut the disc surface are easily replaced due to disc surface vibration. However, the actual lifespan of the tools is not reached, resulting in wasted tool costs and reduced efficiency. This is closely related to the clamping stability of the brake disc, and it is imperative to change this defect.

[0004] Since the existing brake disc positioning method is three-point support, the turning process can meet the technical requirements, but the stability needs to be further improved. During long-term turning, due to the gradual wear of the tool, clamping deformation during machining is inevitable, and the brake disc runout will gradually increase. The tool must be replaced immediately to ensure quality. At the same time, the tool cost will increase, and the rework rate and scrap rate will increase.

[0005] To further improve clamping stability and reduce clamping deformation rate and disc surface vibration factors, we provide a multi-point top-holding rear brake disc turning positioning fixture. Utility Model Content

[0006] The purpose of this invention is to provide a multi-point top-holding rear brake disc turning positioning fixture, which is used to further improve the stability of clamping and reduce the clamping deformation rate and disc surface vibration factor.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-point top-holding rear brake disc turning positioning fixture, comprising a base and a fixed seat, a movable seat, a clamping block, and a positioning disc located above the base. The positioning disc is located at the center of the base and fixed to the fixed seat. The fixed seat and the movable seat are evenly distributed around the positioning disc with the vertical axis of the positioning disc as the axis of symmetry, and the fixed seat and the movable seat are staggered around the positioning disc. The fixed seat is fixed to the base and supported on the bottom of the positioning disc from the top, and the movable seat is slidably disposed on the base along the radial direction of the positioning disc. The clamping block is fixed on the movable seat. The top of the clamping block is provided with clamping parts distributed along the radial direction of the positioning disk, and the side of the clamping parts facing the positioning disk is the clamping surface. The positioning disk is provided with a first top-holding reference point and a second top-holding reference point corresponding to the position of the clamping parts along the radial direction. The first top-holding reference point and the second top-holding reference point protrude on the top of the positioning disk and are distributed in a ring around the center of the positioning disk. The second top-holding reference point is located inside the ring of the first top-holding reference points. At least six sets of the first top-holding reference points and the second top-holding reference point are provided.

[0008] Preferably, bolt mounting holes are evenly distributed on the positioning plate, and a fixing bolt is installed in each bolt mounting hole. The positioning plate is locked and fixed to the top of the fixing seat by the fixing bolt.

[0009] Preferably, the clamping block is provided with symmetrical bolt mounting holes, and a second fixing bolt is provided in the bolt mounting hole. The clamping block is locked and fixed to the top of the movable seat by the second fixing bolt.

[0010] Preferably, the top of the movable seat is provided with a mounting groove that matches the shape of the clamping block.

[0011] Preferably, the fixing seat is provided with symmetrical bolt mounting holes, and fixing bolts are provided in the bolt mounting holes. The fixing seat is fixed to the base by fixing bolts.

[0012] Preferably, each set of clamping blocks is provided with at least two sets of symmetrically distributed clamping parts.

[0013] This utility model has the following beneficial effects:

[0014] This invention improves the turning support method by setting a clamping block, a first support reference point, and a second support reference point. The improved method adopts a new multi-point support method with a total of twelve support reference points, changing the original three-point support. During machining, the multi-point support of the reference points can reduce or offset the deformation, thereby allowing the brake disc brake surface to be machined smoothly. The multi-point support along the clamping points ensures stable clamping, reduces disc surface runout, reduces brake disc deformation, improves yield, and significantly improves the quality of the brake disc. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure at the position of the movable seat of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixed base structure of this utility model.

[0018] In the diagram: 1. Base; 2. Fixed seat; 3. Movable seat; 31. Mounting slot; 4. Clamping block; 41. Clamping part; 5. Positioning plate; 51. First supporting reference point; 52. Second supporting reference point; 6. Fixing bolt one; 7. Fixing bolt two; 8. Fixing bolt three. Detailed Implementation

[0019] 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.

[0020] like Figure 1-3 As shown, this utility model provides a technical solution: a multi-point top-holding rear brake disc turning positioning fixture, including a base 1 and a fixed seat 2, a movable seat 3, a clamping pressure block 4 and a positioning plate 5 located above the base 1. The positioning plate 5 is located at the center of the base 1 and fixed on the fixed seat 2. Bolt mounting holes are evenly arranged on the positioning plate 5, and fixing bolts 6 are arranged in the bolt mounting holes. The positioning plate 5 is locked and fixed to the top of the fixed seat 2 by fixing bolts 6.

[0021] Both the fixed seat 2 and the movable seat 3 are evenly distributed around the positioning disk 5 with the vertical axis of the positioning disk 5 as the axis of symmetry. The fixed seat 2 and the movable seat 3 are staggered around the positioning disk 5. The fixed seat 2 is fixed on the base 1 and supported on the bottom of the positioning disk 5 from the top. The fixed seat 2 is symmetrically provided with bolt mounting holes, and the bolt mounting holes are provided with fixing bolts 8. The fixed seat 2 is fixed on the base 1 by fixing bolts 8. The movable seat 3 is slidably provided on the base 1 along the radial direction of the positioning disk 5. The movable seat 3 can be driven to slide and move by connecting an external linear drive device to achieve the action of clamping the pressure block 4. For example, the movable seat 3 can be driven to slide by a drive cylinder. The top of the movable seat 3 is provided with a mounting groove 31 that matches the shape of the clamping pressure block 4. The clamping pressure block 4 is fixed on the movable seat 3. The clamping pressure block 4 is symmetrically provided with bolt mounting holes, and the bolt mounting holes are provided with fixing bolts 7. The clamping pressure block 4 is locked and fixed to the top of the movable seat 3 by fixing bolts 7.

[0022] The clamping block 4 has clamping parts 41 distributed along the radial direction of the positioning disk 5 on its top, and each set of clamping blocks 4 has at least two sets of symmetrically distributed clamping parts 41, and the side of the clamping part 41 facing the positioning disk 5 is the clamping surface.

[0023] The positioning disk 5 is radially provided with a first supporting reference point 51 and a second supporting reference point 52 corresponding to the position of the clamping part 41. The first supporting reference point 51 and the second supporting reference point 52 protrude on the top of the positioning disk 5 and are distributed in a ring around the center of the positioning disk 5. The second supporting reference point 52 is located inside the ring of the first supporting reference point 51. At least six sets of the first supporting reference point 51 and the second supporting reference point 52 are provided. In use, there are a total of twelve supporting reference points supporting the bottom of the brake disk and clamped around the bottom of the brake disk by the clamping part 41.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] 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 multi-point top-holding rear brake disc turning positioning fixture, characterized in that: The device includes a base (1) and a fixed seat (2), a movable seat (3), a clamping block (4), and a positioning plate (5) located above the base (1). The positioning plate (5) is located at the center of the base (1) and fixed on the fixed seat (2). The fixed seat (2) and the movable seat (3) are evenly distributed around the positioning plate (5) with the vertical axis of the positioning plate (5) as the axis of symmetry. The fixed seat (2) and the movable seat (3) are staggered around the positioning plate (5). The fixed seat (2) is fixed on the base (1) and supported on the bottom of the positioning plate (5) by its top. The movable seat (3) is slidably disposed on the base (1) along the radial direction of the positioning plate (5). The clamping block (4) is fixed on the movable seat (3). The clamping block (4) is provided with a clamping part (41) distributed in the radial direction of the positioning disk (5) at the top, and the side of the clamping part (41) facing the positioning disk (5) is the clamping surface. The positioning disk (5) is provided with a first top-holding reference point (51) and a second top-holding reference point (52) corresponding to the position of the clamping part (41) in the radial direction. The first top-holding reference point (51) and the second top-holding reference point (52) protrude on the top of the positioning disk (5) and are distributed in a ring around the center of the positioning disk (5). The second top-holding reference point (52) is located inside the ring of the first top-holding reference point (51) distributed in a ring. At least six sets of the first top-holding reference point (51) and the second top-holding reference point (52) are provided.

2. The multi-point top-holding rear brake disc turning positioning fixture according to claim 1, characterized in that: The positioning plate (5) is evenly provided with bolt mounting holes, and a fixing bolt (6) is provided in the bolt mounting holes. The positioning plate (5) is locked and fixed to the top of the fixing seat (2) by the fixing bolt (6).

3. The multi-point top-holding rear brake disc turning positioning fixture according to claim 1, characterized in that: The clamping block (4) is symmetrically provided with bolt mounting holes, and a second fixing bolt (7) is provided in the bolt mounting hole. The clamping block (4) is locked and fixed to the top of the movable seat (3) by the second fixing bolt (7).

4. The multi-point top-holding rear brake disc turning positioning fixture according to claim 1, characterized in that: The top of the movable seat (3) is provided with an installation groove (31) that matches the shape of the clamping block (4).

5. The multi-point top-holding rear brake disc turning positioning fixture according to claim 1, characterized in that: The fixed seat (2) is symmetrically provided with bolt mounting holes, and a fixing bolt (8) is provided in the bolt mounting holes. The fixed seat (2) is fixed to the base (1) by the fixing bolt (8).

6. The multi-point top-holding rear brake disc turning positioning fixture according to claim 1, characterized in that: Each set of clamping blocks (4) is provided with at least two sets of symmetrically distributed clamping parts (41).

Images