Wheel lathe brake disc cutter integrated with measuring function

Abstract

The utility model belongs to the technical field of numerical control machine tool cutters, and discloses a wheel lathe brake disc cutter integrated with a measuring function, which comprises a cutter body, a measuring head, a measuring rod, a guide sleeve, a support, a miniature cylinder and a displacement sensor. The tool body is provided with a square inner cavity, installation holes are formed in the two side faces of the tool body, a support is installed on the top of the inner cavity of the tool body, the miniature air cylinders are fixed to the support, the guide sleeves are fixed into the installation holes, the measuring rods are installed in the guide sleeves and can slide front and back in the axis direction, and the front ends of the measuring rods are connected with the measuring heads. The displacement sensor is connected with the measuring rod. The device can be additionally arranged on an existing wheel lathe, the functions of automatic wheel lathe brake disc abrasion measurement and brake disc machining automatic tool setting are achieved, the structure of the measurement mechanism adopts modular design, compatibility is good, economical efficiency is good, the integration degree is high, the machining precision of the brake disc can be fully guaranteed, and machining efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tool cutting technology, specifically a wheel lathe brake disc cutting tool with integrated measurement function. Background Technology

[0002] CNC wheel lathes are widely used for wheel tread and brake disc surface turning. These machine tools typically have wheel diameter and tread profile measurement functions, and can automatically formulate tread turning machining plans based on the measurement results, achieving high-precision and highly automated tread turning. However, when turning brake disc surfaces, these machine tools usually lack brake disc wear measurement capabilities. Therefore, before turning brake disc surfaces, manual measurement of brake disc wear is required, and the turning amount is determined based on manual experience. Simultaneously, the machine tool relies on proximity switches on the brake disc cutting tool for tool setting. The position sensing accuracy of these proximity switches is only sub-millimeter level, resulting in a tool setting repeatability accuracy also only sub-millimeter level, leading to inaccurate control of the brake disc turning amount.

[0003] To meet the demands for automated, high-efficiency, and high-precision brake disc machining, and to upgrade existing machine tools, a wheel lathe brake disc cutting tool with brake disc wear measurement function is needed. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a wheel lathe brake disc cutting tool with integrated measurement function, including: a tool body, a probe, a probe rod, a guide sleeve, a bracket, a miniature cylinder, and a displacement sensor; the tool body has a square inner cavity with mounting holes on both sides; a bracket is installed on the top of the tool body cavity; the miniature cylinder is fixed on the bracket; the guide sleeve is fixed in the mounting holes; the probe rod is installed in the guide sleeve and can slide back and forth along the axial direction; the front end of the probe rod is connected to the probe; a displacement sensor is also installed on the bracket and connected to the probe rod; a protective cover is also installed on the tool body to seal the cavity and prevent external dust from entering.

[0005] Furthermore, the external dimensions and mounting interface of the tool body should be the same as the original tool body of the machine tool, so that the original tool body of the machine tool can be replaced without damage.

[0006] Guide sleeves are installed in each mounting hole, and the probe is made of a high-hardness, high-wear-resistant material.

[0007] Furthermore, a bracket is installed inside the cavity of the tool body, and a miniature cylinder is mounted on the bracket. The piston rod of the miniature cylinder is connected to the rear end of the measuring rod.

[0008] Furthermore, the miniature cylinder has a piston rod at the front end and an air inlet at the rear end, with the piston rod connected to the rear end of the measuring rod.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] This invention can be added to existing wheel lathes to achieve automatic measurement of brake disc wear and automatic tool setting during brake disc machining. The measuring mechanism adopts a modular design, which has good compatibility, economy, and integration, and can fully guarantee the machining accuracy of the brake disc and improve machining efficiency. Attached Figure Description

[0011] Figure 1 This is a right-side perspective view of a wheel lathe brake disc cutting tool with integrated measurement function according to this utility model.

[0012] Figure 2 This is a bottom view of a wheel lathe brake disc cutting tool with integrated measurement function according to the present invention.

[0013] Figure 3 This is a side sectional view of the internal structure of a wheel lathe brake disc tool with integrated measurement function according to this utility model.

[0014] Figure 4 This is a three-dimensional sectional view of the internal structure of a wheel lathe brake disc tool with integrated measurement function according to this utility model.

[0015] Reference numerals in the attached drawings: 1. Tool body; 2. Probe; 3. Protective cover; 4. Probe rod; 401. Connecting frame; 402. Groove; 5. Guide sleeve; 501. Roller; 6. Brake; 7. Miniature cylinder; 701. Piston rod; 8. Displacement sensor; 801. Displacement measuring column; 9. Brake disc. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0017] See Figures 1-4This utility model provides a wheel lathe brake disc cutting tool with integrated measurement function, including a tool body 1, a probe 2, a measuring rod 4, a guide sleeve 5, a bracket 6, a miniature cylinder 7, and a displacement sensor 8. The tool body 1 has a square inner cavity with mounting holes on both sides. The bracket 6 is installed on the top of the inner cavity of the tool body 1. The miniature cylinder 7 is fixed on the bracket 6. The guide sleeve 5 is fixed in the mounting hole. The measuring rod 4 is installed in the guide sleeve 5. Specifically, the measuring rod 4 has a groove 402 in the middle of its outer surface. The inner wall of the guide sleeve 5 has rollers 501. The rollers 501 are inserted into the groove 402, allowing the measuring rod 4 to slide back and forth along the axial direction. The front end of the measuring rod 4 is connected to the probe 2. The bracket 6 is also equipped with a displacement sensor 8, which is connected to the measuring rod 4. Specifically, the front end of the displacement sensor 8 is provided with a displacement measuring column 801. The displacement measuring column 801 abuts against the connecting frame 401 and is connected to the measuring rod 4 through the connecting frame 401, so that the displacement measuring column 801 and the measuring rod 4 can move together with the same displacement.

[0018] In actual use, the two measuring mechanisms, consisting of probe 2, probe rod 4, guide sleeve 5, bracket 6, miniature cylinder 7 and displacement sensor 8, are installed in the inner cavity of the tool body 1. One set of probe 2 faces left and the other set of probe 2 faces right.

[0019] Preferably, the blade body 1 is also provided with a protective cover 3 for sealing the inner cavity and preventing external dust from entering.

[0020] Preferably, the probe 2 is made of a high-hardness, high-wear-resistant material. Taking the probe 2 mounting position as the front end, the miniature cylinder 7 has a piston rod 701 at the front end and an air inlet at the rear end, with the piston rod 701 connected to the rear end of the probe rod 4. The external dimensions and mounting interface of the tool body 1 should be the same as the original tool body of the machine tool, allowing for direct replacement of the original tool body.

[0021] Working principle: Before the brake disc surface is turned, compressed air at a constant pressure is injected into the micro cylinder 7 through the air inlet. The piston rod 701 extends and pushes out the probe 4. The tool body 1 moves with the machine tool post and approaches the brake disc 9, so that the probe 2 touches the brake disc 9 and retracts after overcoming the thrust of the micro cylinder 7 with a pre-compression of 3-4 mm. At this time, the displacement measuring column 801 is also pushed and pre-compressed by the connecting frame 401. Then, the tool body 1 moves up and down along the surface of the brake disc 9. At this time, the probe 2 continuously moves across the surface of the brake disc 9. At the same time, the probe 2 moves and retracts along the uneven distribution of wear on the surface of the brake disc 9, so that the displacement measuring column 801 also moves and retracts accordingly. The difference between the maximum and minimum values ​​of the extension and retraction fed back by the displacement sensor 8 is the maximum wear of the brake disc 9. Based on the coordinate data generated when the probe 2 first contacts the brake disc 9 and the measured maximum wear data of the brake disc 9, the machine tool formulates a corresponding processing plan and performs the brake disc surface turning. Similarly, the above steps are repeated for measuring the brake disc surface on the other side using the tool 1 and the probe 2 on the other side.

[0022] 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 wheel lathe brake disc cutting tool with integrated measurement function, characterized in that, include: The tool body (1), probe (2), probe (4), guide sleeve (5), bracket (6), miniature cylinder (7) and displacement sensor (8) are provided. The tool body (1) has a square inner cavity and mounting holes on both sides. The bracket (6) is installed on the top of the inner cavity of the tool body (1). The miniature cylinder (7) is fixed on the bracket (6). The guide sleeve (5) is fixed in the mounting hole. The probe (4) is installed in the guide sleeve (5). The probe (4) can slide back and forth along the axial direction. The front end of the probe (4) is connected to the probe (2). The bracket (6) is also equipped with a displacement sensor (8). The displacement sensor (8) is connected to the probe (4).

2. The wheel lathe brake disc cutting tool with integrated measurement function according to claim 1, characterized in that, The knife body (1) is also equipped with a protective cover (3).

3. The wheel lathe brake disc cutting tool with integrated measurement function according to claim 1, characterized in that, The miniature cylinder (7) has a piston rod (701) at the front end and an air inlet at the rear end. The piston rod (701) is connected to the rear end of the measuring rod (4).

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