Damping device for machining brake surface of automobile brake disc

Abstract

An automobile brake disc brake surface machining damping device is provided with dampers arranged up and down. The shock absorber comprises a shock absorption pressure head, a sleeve, a pressure spring, a plug wire and a shock absorber bracket; the shock absorber support is installed on an upper tool holder or a tool apron of numerical control machining equipment, and the sleeve is fixedly assembled on the shock absorber support. The sleeve is a round cylinder, one end of the sleeve is provided with the damping pressure head, and the other end of the sleeve is provided with the plug wire; the damping pressing head is of a stepped cylinder structure, the large-diameter end of the damping pressing head is arranged in the sleeve, the small-diameter end of the damping pressing head extends out of the sleeve, and the tip of the small-diameter end is a hemispherical curved surface. The upper end and the lower end of the compression spring abut against the large-diameter end of the damping pressing head and the plug wire respectively. Impact energy generated by vibration of a machine tool is absorbed through the shock absorbers which are arranged up and down, so that the phenomenon of shock marks on the machining surface of a workpiece is avoided, and the purposes of ensuring the machining quality of the workpiece and improving the product percent of pass are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely is a kind of shock absorber for the machining of automobile brake disc brake face. BACKGROUND

[0002] The basic function of automobile brake system is to make the automobile in running decelerate or stop, and make the automobile in downhill running keep the stability of vehicle speed. In the automobile brake system, the brake disc is the friction pair of disc brake, in order to ensure the safety and reliability of automobile running, not only higher requirements are put forward to the strength and rigidity of brake disc, but also it should be ensured that it has stable friction coefficient, so the control of brake face flatness in brake disc processing is very important.

[0003] With the improvement of people's living quality, automobile has become one of the main means of transportation, under this background, automobile production capacity increases greatly, and automobile parts generally adopt automatic production mode, among them, brake disc realizes high-precision and high-efficiency processing through numerical control machine tool. But when machining brake face of brake disc, due to the uninterrupted relative motion between tool and workpiece, the vibration of machine tool is inevitable, which will cause vibration phenomenon, and bring adverse effects to the machining quality of brake face of brake disc workpiece. UTILITARY MODEL CONTENTS

[0004] The utility model provides a kind of automobile brake disc brake face machining shock absorber, it aims to absorb the impact energy generated by machine tool vibration by the shock absorber arranged in upper and lower, to avoid vibration phenomenon on the machining surface of workpiece, reach the purpose of ensuring workpiece processing quality, improve product pass rate.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of automobile brake disc brake face machining shock absorber is provided with the shock absorber arranged in upper and lower;The shock absorber includes shock absorber ram, sleeve, compression spring, plug wire and shock absorber support;The shock absorber support is installed on the upper tool holder or tool holder of numerical control processing equipment, and the sleeve is fixedly assembled on the shock absorber support;The sleeve is circular cylinder, and shock absorber ram is equipped at one end of the sleeve, and plug wire is equipped at the other end;The shock absorber ram is the stepped cylindrical structure, and the large-diameter end is placed in the sleeve, and the small-diameter end is stretched out from the sleeve, and the end of the small-diameter end is hemispherical curved surface;The compression spring is placed in the cavity of the sleeve, and the upper and lower ends thereof are respectively in contact with the large-diameter end of the shock absorber ram and the plug wire.

[0007] The above-mentioned automobile brake disc brake face machining shock absorber, the shock absorber support is connected with the upper tool holder or tool holder of numerical control processing equipment by bolt, and the threaded hole is arranged on the shock absorber support, the sleeve is provided with external thread, and the sleeve is assembled with the threaded hole of the shock absorber support.

[0008] The automobile brake disc brake face machining damping device has three groups of dampers, two of which are upper dampers matched with upper plane machining tools of the workpiece of the numerical control machine tool, and the other one is a lower damper matched with lower plane machining tools of the workpiece of the numerical control machine tool.

[0009] The automobile brake disc brake face machining damping device has three groups of dampers, two of which are upper dampers matched with upper plane machining tools of the workpiece of the numerical control machine tool, and the other one is a lower damper matched with lower plane machining tools of the workpiece of the numerical control machine tool.

[0010] The automobile brake disc brake face machining damping device has three groups of dampers, two of which are upper dampers matched with upper plane machining tools of the workpiece of the numerical control machine tool, and the other one is a lower damper matched with lower plane machining tools of the workpiece of the numerical control machine tool.

[0011] The automobile brake disc brake face machining damping device has three groups of dampers, two of which are upper dampers matched with upper plane machining tools of the workpiece of the numerical control machine tool, and the other one is a lower damper matched with lower plane machining tools of the workpiece of the numerical control machine tool. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a specific embodiment structure diagram of the automobile brake disc workpiece;

[0013] Figure 2 is a schematic diagram of the assembly structure of the utility model and the numerical control machine tool and the cooperation with the brake disc workpiece;

[0014] Figure 3 is Figure 2 the A-direction partial view in Figure

[0015] Figure 4 is a schematic diagram of the sectional structure of the damper.

[0016] Explanation of the reference numerals in the drawing:

[0017] 1 is a brake disc, and 1-1 is a brake face;

[0018] 2 is an upper damper, 2-1 is a damping pressure head, 2-2 is a sleeve, 2-3 is a compression spring, 2-4 is a plug wire, 2-5 is a damper support, and 2-6 is a bolt;

[0019] 3 is a tool holder;

[0020] 4 is an upper tool holder;

[0021] 5 is a tool holder. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings and specific embodiments.

[0023] Referring to Fig. 1, an automobile brake disc 1, in order to ensure the flatness requirement of its braking surface 1-1 during processing, needs to be precisely machined by a numerical control machine tool on the upper and lower braking surfaces 1-1.

[0024] Referring to Figure 2 , Figure 3 , the utility model provides a kind of automobile brake disc braking surface processing damping device, and its specific embodiment is directed to the damping device of the upper and lower braking surface 1-1 precision machining operation of brake disc 1 workpiece, damping device is equipped with the shock absorber 2 of upper and lower arrangement;The number of shock absorber 2 is three groups, wherein two groups are the upper shock absorber that cooperates with the workpiece upper plane machining tool 3 of numerical control machine tool, is installed on the upper tool holder 4 of numerical control machine tool, located the two sides of workpiece upper plane machining tool 3 of numerical control machine tool, another group is the lower shock absorber that cooperates with the workpiece lower plane machining tool 3 of numerical control machine tool, is installed on the tool holder 5 of numerical control machine tool, and the part connected with tool holder 5 is located the back of lower tool holder of numerical control machine tool.

[0025] Referring to Figure 2 , Figure 4 , the automobile brake disc braking surface processing damping device of the utility model, its shock absorber 2 includes damping pressure head 2-1, sleeve 2-2, compression spring 2-3, plug wire 2-4 and shock absorber support 2-5;The upper tool holder 4 or tool holder 5 of numerical control machining equipment is connected by bolt 2-6 with shock absorber support 2-5, and threaded hole is equipped on shock absorber support 2-5;The sleeve 2-2 is circular cylinder, and threaded hole is equipped on the outer wall of sleeve 2-2, and sleeve 2-2 outer thread is assembled with the threaded hole of shock absorber support 2-5, and damping pressure head 2-1 is assembled at one end of sleeve, and plug wire 2-4 is assembled at the other end;The damping pressure head 2-1 is the stepped cylindrical structure, and the large-diameter end is placed in the sleeve 2-2, and the small-diameter end is stretched out from the sleeve 2-2, and the end of small-diameter end is hemispherical curved surface;Compression spring 2-3 is placed in the cavity of sleeve 2-2, and the upper and lower ends are respectively contacted with the large-diameter end of damping pressure head 2-1 and plug wire 2-4.

[0026] Referring to Figures 1 to 4 , when machining the braking surface 1-1 of automobile brake disc 1 by the utility model, when the braking surface 1-1 being machined is pressed tightly by damping pressure head 2-1 due to machine vibration, compression spring 2-3 is compressed to produce elastic deformation, and part of impact force and vibration energy is absorbed;When damping pressure head 2-1 leaves the braking surface 1-1 being machined, compression spring 2-3 releases the stored energy, thereby reducing the influence of vibration and impact. Thus, the utility model effectively reduces the vibration phenomenon on the machined surface, ensures the flatness of braking surface 1-1 of brake disc 1 workpiece, and improves the processing quality and the qualified rate of product.

Claims

1. A vibration damping device for machining the brake surface of an automotive brake disc, characterized in that: A shock absorber (2) is provided, arranged vertically. The shock absorber (2) includes a shock-absorbing pressure head (2-1), a sleeve (2-2), a compression spring (2-3), a plug (2-4), and a shock absorber bracket (2-5). The shock absorber bracket (2-5) is installed on the upper tool holder (4) or tool holder (5) of the CNC machining equipment, and a matching sleeve (2-2) is fixedly installed on the shock absorber bracket (2-5). The sleeve (2-2) is a circular cylinder. One end is equipped with a shock-absorbing pressure head (2-1), and the other end is equipped with a plug (2-4); the shock-absorbing pressure head (2-1) is a stepped cylindrical structure, with its large-diameter end placed inside the sleeve (2-2) and its small-diameter end protruding from the sleeve (2-2), the end of the small-diameter end being a hemispherical curved surface; the compression spring (2-3) is placed in the inner cavity of the sleeve (2-2), and its upper and lower ends respectively abut against the large-diameter end of the shock-absorbing pressure head (2-1) and the plug (2-4).

2. The vibration damping device for machining the brake surface of an automotive brake disc according to claim 1, characterized in that: The shock absorber bracket (2-5) is connected to the upper tool holder (4) or tool holder (5) of the CNC machining equipment by bolts (2-6). The shock absorber bracket (2-5) is provided with threaded holes, and the sleeve (2-2) is provided with external threads. The sleeve (2-2) is assembled with the threaded holes on the shock absorber bracket (2-5).

3. The vibration damping device for machining the brake surface of an automotive brake disc according to claim 1 or 2, characterized in that: The number of shock absorbers (2) is three sets, two of which are upper shock absorbers that cooperate with the upper plane machining tool (3) of the workpiece of the CNC machine tool, and the other set is a lower shock absorber that cooperates with the lower plane machining tool (3) of the workpiece of the CNC machine tool.

4. The vibration damping device for machining the brake surface of an automotive brake disc according to claim 3, characterized in that: The upper shock absorber is installed on the upper tool holder (4) of the CNC machine tool, located on both sides of the workpiece upper plane machining tool (3) of the CNC machine tool.

5. The vibration damping device for machining the brake surface of an automotive brake disc according to claim 3, characterized in that: The lower shock absorber is installed on the tool holder (5) of the CNC machine tool, and the part connected to the tool holder (5) is located on the back of the lower tool holder of the CNC machine tool.

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