Brake disc finish-milling positioning clamp

Abstract

The utility model discloses a brake disc finish-milling positioning clamp, and relates to the related technical field of brake disc machining. The milling machine comprises a milling machine base, a mounting plate, three-jaw calipers and a limiting assembly, the mounting plate is arranged at the top of the milling machine base, the center of the top of the mounting plate is rotationally connected with the three-jaw calipers, an annular protractor is fixed to the top of the mounting plate on the peripheral side of the three-jaw calipers, and a rotating handle is fixed to the middle of the peripheral side of the three-jaw calipers; a connecting block is fixed to the end, away from the three-jaw calipers, of the rotating handle, and a limiting assembly is connected into the connecting block in a penetrating and threaded mode. Through the arrangement of the milling machine seat, the mounting plate, the three-jaw calipers and the limiting assembly, the problems that the brake disc finish-milling positioning fixture is inconvenient to mount on a lathe, and the whole milling process is relatively complex and easy to make mistakes are solved, and the brake disc finish-milling positioning fixture has the advantages that the brake disc finish-milling positioning fixture is more convenient to mount on the lathe, and the production efficiency is improved. And through cooperation of the clamp, continuous repeated machining can be carried out, and the complexity of the finish-milling machining procedure is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field related to brake disc processing, in particular to a brake disc precision milling positioning fixture. Background Art

[0002] Brake disc precision milling is an important process in the automobile braking system, which directly affects the performance of the brake disc and the driving safety of the car. The purpose of precision milling is to ensure that the brake disc has high-precision dimensions, good surface quality and flatness, and meets specific runout and parallelism requirements. In order to process the brake disc, the brake disc needs to be clamped well by a fixture. The brake disc fixture is a special tool used to fix the brake disc during the processing. It is crucial to ensure processing accuracy and improve production efficiency, but it still has the following disadvantages in actual use:

[0003] During the operation of the brake disc precision milling positioning fixture, it needs to be installed on a precision milling lathe. During the installation process, it is directly pushed and then bolted into the fastening groove for fastening. During the operation, the fastening operation is not convenient enough;

[0004] The brake disc precision milling positioning fixture is directly positioned by the positioning fixture, but different positions on the brake disc need to be milled in the same way. If the milling is performed directly through the program of the equipment, the program is more complicated and prone to program errors, resulting in a higher failure rate. Utility Model Content

[0005] The purpose of the utility model is to provide a brake disc precision milling positioning fixture, which solves the problems that the brake disc precision milling positioning fixture is not convenient to install on a lathe and the overall milling process is relatively complicated and prone to errors by arranging a milling machine base, a mounting plate, a three-jaw caliper and a limit assembly.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a brake disc precision milling positioning fixture, comprising a milling machine seat, a mounting plate, a three-jaw caliper and a limit assembly, wherein a mounting plate is arranged on the top of the milling machine seat, a three-jaw caliper is rotatably connected to the top center of the mounting plate, an annular protractor is fixed to the top of the mounting plate on the peripheral side of the three-jaw caliper, a rotating handle is fixed to the middle part of the peripheral side of the three-jaw caliper, a connecting block is fixed to the end of the rotating handle away from the three-jaw caliper, a limiting assembly is connected through a thread in the connecting block, when working, the mounting plate is supported on it by the milling machine seat, the three-jaw caliper is rotatably connected to it by the mounting plate, the brake disc body is limited on it by the three-jaw caliper, and the position between the three-jaw caliper and the mounting plate is limited by the limit assembly.

[0008] Furthermore, a plurality of movable grooves are formed at equal intervals on the top of the milling machine seat, the movable grooves are parallel to each other, and the milling machine seat is movably connected to the engaging strips through the movable grooves.

[0009] Furthermore, a plurality of engaging strips are equidistantly fixed to the bottom of the mounting plate, and the engaging strips are slidably connected in the movable grooves. The four corners in the mounting plate are vertically threaded with clamping bolts, and the bottom ends of the clamping bolts are pressed against the milling machine seat. After the engaging strips are engaged into the movable grooves at the top of the milling machine seat, the clamping bolts are rotated to tighten them, so that the milling machine seat and the mounting plate are combined together.

[0010] Furthermore, a pointer is fixed to the lower part of the circumference of the three-jaw caliper, the pointer is arranged on the top of the annular protractor, and the pointer and the rotating handle are staggered with each other. The three-jaw caliper cooperates with the protractor through the pointer to display the rotation angle of the three-jaw caliper.

[0011] Furthermore, the limiting assembly includes a screw, a gasket and a rotating frame. The rotating frame is fixed to the top end of the screw, and the gasket is rotatably connected to the bottom end of the screw. The limiting assembly rotates through the rotating frame to drive the gasket to be pressed to the top of the mounting plate.

[0012] Furthermore, a screw hole is vertically opened in the connecting block, the screw rod is threadedly connected in the screw hole, the gasket abuts against the top of the mounting plate, a brake disc body is provided at the top of the three-jaw caliper, and the connecting block is threadedly connected to the screw rod through the screw hole.

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

[0014] The utility model solves the problem that it is not convenient to install the brake disc fine milling positioning fixture on the lathe by arranging a milling machine seat and a mounting plate. After the engaging strip at the bottom of the mounting plate is aligned with the movable groove at the top of the milling machine seat, the engaging strip is clamped into the sliding groove at the top of the milling machine seat, and the outer sides of the milling machine seat and the outer sides of the mounting plate are flush with each other, the clamping bolt is rotated and pressed onto the milling machine seat and tightened, so that the milling machine seat and the mounting plate are well restricted, making it more convenient to install the brake disc fine milling positioning fixture on the lathe.

[0015] The utility model solves the problem that the overall milling processing procedure of the brake disc fine milling positioning fixture is relatively complicated and easy to make mistakes by arranging a mounting plate, a three-jaw caliper and a limit assembly. After the brake disc body is clamped by the three-jaw caliper, the rotating handle is rotated to make the pointer align with the zero scale of the annular protractor. After completion, the rotating frame is rotated to drive the screw to rotate so that the gasket is pressed to the top of the mounting plate and pressed tightly. After that, the position of the three-jaw caliper is determined, and after the brake disc body is milled, the rotating frame is rotated, the three-jaw caliper is released, and the three-jaw caliper is rotated again so that when the three-jaw caliper rotates, the pointer rotates to a suitable angle on the annular protractor. The rotating frame is rotated again until the gasket and the mounting plate are tightly abutted. Then, the milling operation of the brake disc body is continued, thereby reducing the program amount required for the fine milling of the brake disc, making the processing procedure simpler and less prone to errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a stereoscopic diagram of the assembly structure of a brake disc precision milling positioning fixture;

[0018] Figure 2 It is a three-dimensional diagram of the structure of the milling machine base;

[0019] Figure 3 It is a three-dimensional diagram of the mounting plate structure;

[0020] Figure 4 This is a three-jaw caliper structure stereogram;

[0021] Figure 5 It is a three-dimensional diagram of the limit component structure.

[0022] Reference numerals:

[0023] 1. Milling machine seat; 101. Movable groove; 2. Mounting plate; 201. Fitting strip; 202. Clamping bolt; 203. Ring protractor; 3. Three-jaw caliper; 301. Pointer; 302. Rotating handle; 303. Connecting block; 304. Screw hole; 4. Limiting assembly; 401. Screw rod; 402. Gasket; 403. Rotating frame; 5. Brake disc body. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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 of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0025] See also Figure 1-4 The utility model is a brake disc precision milling positioning fixture, comprising a milling machine seat 1, a mounting plate 2, a three-jaw caliper 3 and a limit assembly 4. The top of the milling machine seat 1 is provided with a mounting plate 2. When the milling machine seat 1 is working, the mounting plate 2 is supported on the milling machine frame, and the three-jaw caliper 3 is rotatably connected thereto through the mounting plate 2. The top center of the mounting plate 2 is rotatably connected with the three-jaw caliper 3, and the brake disc body 5 is clamped thereon by the three-jaw caliper 3. A ring protractor 20 is fixed on the top of the mounting plate 2 on the side of the three-jaw caliper 3. 3. The angle change between the brake disc body 5 and the milling machine seat 1 is determined by the annular protractor 203. A rotating handle 302 is fixed to the middle part of the circumferential side of the three-jaw caliper 3. The three-jaw caliper 3 is driven to rotate by rotating the rotating handle 302. A connecting block 303 is fixed to the end of the rotating handle 302 away from the three-jaw caliper 3. The limit component 4 is threadedly connected therein through the connecting block 303. The limit component 4 is threadedly connected in the connecting block 303, and the position of the three-jaw caliper 3 on the mounting plate 2 is limited by the limit component 4.

[0026] Specifically, a plurality of movable grooves 101 are formed at equal intervals on the top of the milling machine base 1 . The movable grooves 101 are parallel to each other. The milling machine base 1 is movably connected to the engaging strip 201 through the movable grooves 101 .

[0027] Furthermore, a plurality of engaging strips 201 are fixed at equal intervals at the bottom of the mounting plate 2, and the engaging strips 201 are slidably connected in the movable groove 101, so that the mounting plate 2 and the milling machine seat 1 are combined together, and the four corners in the mounting plate 2 are vertically threadedly connected with clamping bolts 202, and the bottom ends of the clamping bolts 202 are pressed against the milling machine seat 1. After the mounting plate 2 is pressed against the milling machine seat 1 by the clamping bolts 202, the mounting plate 2 and the milling machine seat 1 are pressed against each other during operation.

[0028] The operation process of this embodiment is as follows: when working, first align the engaging strip 201 at the bottom of the mounting plate 2 with the movable groove 101 at the top of the milling machine seat 1, and then insert the engaging strip 201 into the movable groove 101 at the top of the milling machine seat 1, until the outer side of the milling machine seat 1 and the outer side of the mounting plate 2 are flush with each other, then rotate the clamping bolt 202, and the clamping bolt 202 is rotated to press onto the milling machine seat 1 and tighten, so that the milling machine seat 1 and the mounting plate 2 are well restricted. Specific embodiment 2

[0029] See also Figure 1 , 3 , 4, 5, on the basis of the specific embodiment 1, a pointer 301 is fixed to the lower part of the peripheral side of the three-jaw caliper 3, the pointer 301 is set on the top of the annular protractor 203, and the pointer 301 and the rotating handle 302 are staggered with each other. The three-jaw caliper 3 displays the angle change between the brake disc body 5 and the three-jaw caliper 3 through the pointer 301.

[0030] Specifically, the limit assembly 4 includes a screw 401, a gasket 402 and a rotating frame 403. The rotating frame 403 is fixed to the top of the screw 401, and the gasket 402 is rotatably connected to the bottom end of the screw 401. The limit assembly 4 is threadedly connected to the screw hole 304 in the connecting block 303 through the screw 401, and the rotating frame 403 drives the screw 401 to rotate when rotating.

[0031] Furthermore, a screw hole 304 is vertically penetrated in the connecting block 303, the screw rod 401 is threadedly connected in the screw hole 304, the gasket 402 abuts against the top of the mounting plate 2, and the brake disc body 5 is provided on the top of the three-jaw caliper 3. When working, the screw rod 401 is driven to rotate in the screw hole 304 by rotating the rotating frame 403, and the screw rod 401 is lifted and lowered during rotation, so that the gasket 402 is tightened and loosened with the mounting plate 2, and the brake disc body 5 is clamped thereon by the three-jaw caliper 3.

[0032] The operation process of this embodiment is as follows: when working, first, the brake disc body 5 is put on the three-jaw caliper 3, and then the input end of the three-jaw caliper 3 is rotated so that the three-jaw caliper 3 initially limits the brake disc body 5. Then, after the brake disc body 5 is adjusted to a good position, the brake disc body 5 is clamped by the three-jaw caliper 3. After clamping, the rotating handle 302 is rotated so that the pointer 301 is aligned with the zero scale of the annular protractor 203. After completion, the rotating frame 403 is rotated again to drive the screw 401 to rotate so that the gasket 402 is pressed to the top of the mounting plate 2 and pressed tightly, the position of the three-jaw caliper 3 is determined, and the brake disc body 5 is milled. The rotating frame 403 is rotated to release the three-jaw caliper 3, and then the three-jaw caliper 3 is rotated so that when the three-jaw caliper 3 rotates, the pointer 301 rotates to a suitable angle on the annular protractor 203, and the rotating frame 403 is rotated again until the gasket 402 and the mounting plate 2 are tightly pressed, and the milling operation of the brake disc body 5 is continued.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A brake disc precision milling positioning fixture, comprising a milling machine base (1), a mounting plate (2), a three-jaw caliper (3) and a limit assembly (4), characterized in that: A mounting plate (2) is provided on the top of the milling machine seat (1); a three-jaw caliper (3) is rotatably connected to the center of the top of the mounting plate (2); an annular protractor (203) is fixed to the top of the mounting plate (2) on the peripheral side of the three-jaw caliper (3); a rotating handle (302) is fixed to the middle of the peripheral side of the three-jaw caliper (3); a connecting block (303) is fixed to one end of the rotating handle (302) away from the three-jaw caliper (3); and a limit position assembly (4) is connected through a thread in the connecting block (303).

2. A brake disc precision milling positioning fixture according to claim 1, characterized in that: A plurality of movable grooves (101) are provided at equal intervals on the top of the milling machine seat (1), and the movable grooves (101) are parallel to each other.

3. A brake disc precision milling positioning fixture according to claim 2, characterized in that: A plurality of engaging strips (201) are fixed at equal intervals on the bottom of the mounting plate (2), the engaging strips (201) being slidably connected in the movable grooves (101), and clamping bolts (202) are vertically threadedly connected to the four corners of the mounting plate (2), the bottom ends of the clamping bolts (202) and the milling machine seat (1) being pressed against each other.

4. The brake disc precision milling positioning fixture according to claim 1, characterized in that: A pointer (301) is fixed to the lower part of the circumferential side of the three-jaw caliper (3), the pointer (301) is arranged on the top of the annular protractor (203), and the pointer (301) and the rotating handle (302) are staggered with each other.

5. The brake disc precision milling positioning fixture according to claim 1, characterized in that: The limiting assembly (4) comprises a screw rod (401), a gasket (402) and a rotating frame (403); the rotating frame (403) is fixed to the top end of the screw rod (401), and the gasket (402) is rotatably connected to the bottom end of the screw rod (401).

6. A brake disc precision milling positioning fixture according to claim 5, characterized in that: A screw hole (304) is vertically provided in the connection block (303), the screw rod (401) is threadedly connected in the screw hole (304), the gasket (402) abuts against the top of the mounting plate (2), and a brake disc body (5) is provided at the top of the three-jaw caliper (3).

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