Powder metallurgy brake pad machining device for motor train unit

Abstract

The utility model discloses a powder metallurgy brake pad machining device for a motor train unit. The powder metallurgy brake pad machining device comprises a base, drilling equipment, assembling equipment, a conveying belt, a suction cup type mechanical arm and the like. The drilling equipment is composed of a drill bit, a drilling workbench, a stand column, a drilling main machine box and the like. The assembling equipment is composed of an assembling head assembly, an assembling workbench, an assembling mainframe box, an assembling hydraulic cylinder, a stand column and the like. The workbench is provided with a hydraulic clamp and a positioning column, a workpiece can be clamped at a preset position, and it is guaranteed that the position of the brake pad is accurate during drilling and assembling; the assembling head is a built-in magnet type spring clamping ring pressing device, and the assembling head assembly can fix a plurality of friction blocks at the same time; the drill bits are double drill bits capable of being automatically replaced; the suction cup type mechanical arm can place a brake pad to be machined or a machined brake pad on the workbench or the conveying belt. Through the arrangement of the machining device, automatic production and machining of the powder metallurgy brake lining of the motor train unit are achieved, conversion of all stations is reduced, and the machining efficiency and the machining precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed train brakes, in particular to a powder metallurgy brake pad processing device for train sets. Background Art

[0002] Powder metallurgy brake pads are brake components with huge friction force, which are made of one or more metal or non-metal powders as raw materials, mixed, pressed and sintered. They are composed of friction blocks, adjusters, mounting plates and spring collars. Powder metallurgy brake pads are key components of high-speed train braking systems and play a vital role in the safety of high-speed trains.

[0003] With the rapid development of high-speed trains, the performance requirements for brake pads are getting higher and higher. Since the current powder metallurgy brake pad processing is mostly based on assembly lines, it is efficient and time-saving, but the independent devices only complete a single action, and multiple processing procedures increase the number of processing devices, occupying a large volume, and the current drilling equipment cannot accurately locate the hole when drilling, and errors often occur, resulting in increased scrap costs.

[0004] Based on this, in order to achieve the goals of small occupied volume, high work efficiency and precise processing position, it is necessary to design a powder metallurgy brake pad processing device for EMUs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects of the processing device in the prior art, such as large occupied volume, low working efficiency and error in processing position, and provide a processing device for powder metallurgy brake pads of EMU.

[0006] The utility model solves the above technical problems through the following technical solutions:

[0007] A processing device for powder metallurgy brake pads of a motor vehicle comprises: a base, a drilling device, an assembly device, a conveyor belt I, a suction cup manipulator I, a conveyor belt II, an assembly workbench, a drilling workbench, and a suction cup manipulator II; the drilling device, the assembly device, the suction cup manipulator I and the suction cup manipulator II are all placed on the same base; the drilling device, the drilling workbench, the suction cup manipulator I, and the conveyor belt I constitute a brake pad drilling production line; the assembly device, the assembly workbench, the suction cup manipulator II, and the conveyor belt II constitute a brake pad assembly production line.

[0008] Preferably, the drilling equipment includes: a drill bit, a drilling main box, a first column, a first positioning column, a drilling fixture, and a fixture hydraulic cylinder I;.

[0009] Preferably, the assembly equipment includes: an assembly head assembly, an assembly hydraulic cylinder, an assembly main box, a second column, a second positioning column, an assembly fixture, and a fixture hydraulic cylinder II.

[0010] Preferably, the suction cup manipulator I and the suction cup manipulator II include: a manipulator base, a manipulator arm column, an upper arm, a lower arm, an air pump, and a vacuum suction cup.

[0011] Preferably, the drilling workbench comprises: a first positioning column, a drilling fixture, and a fixture hydraulic cylinder I.

[0012] Preferably, the assembly workbench comprises: a second positioning column, an assembly fixture, and a fixture hydraulic cylinder II.

[0013] Preferably, the drill bit includes two sizes of drill bits and is fixed to the drilling device by a cylindrical pin, and has a built-in drill bit changer.

[0014] Preferably, the assembly head assembly includes 18 assembly heads, each of which is a short cylindrical rod with a hollow bottom, a groove is machined on the bottom of the assembly head, the magnet is installed in the groove, and a step is machined inside the assembly head.

[0015] Preferably, the drilling fixture and the assembly fixture are both designed to be curved surfaces that match the curvature of the brake pad, and are assisted in positioning by a hydraulic cylinder.

[0016] As a preferred embodiment, both the first positioning column and the second positioning column are designed as a cone-shaped body with a top cone and a bottom cylinder.

[0017] Compared with the background technology, the utility model has the following beneficial effects:

[0018] 1. The utility model centrally installs the drilling equipment, assembly equipment and suction cup manipulator on the same base, which is easy to operate, reduces the conversion between various workstations, and occupies a small volume.

[0019] 2. The workbench of the utility model is provided with positioning columns and hydraulic clamps. The positioning columns are designed as a cone with a top cone and a bottom cylinder, and the machined holes at both ends of the gate plate can be passed through the positioning columns to fix them; the clamps are designed as curved surfaces that adapt to the curvature of the gate plate, and are assisted in positioning by a hydraulic cylinder, so that the workpiece can be clamped in a predetermined position to ensure that the gate plate is accurately positioned during drilling and assembly.

[0020] 3. The assembly head of the utility model is a built-in magnet spring clamping device, and the assembly head assembly can realize that multiple friction blocks can be fixed at the same time, which can achieve higher work efficiency.

[0021] 4. The drill bit of the utility model includes two sizes of drill bits, which are fixed on the drilling equipment by cylindrical pins and have a built-in drill bit changer. If it is necessary to process circular holes of different sizes, the drill bit changer can automatically change the drill bit, thereby improving work efficiency; if it is necessary to remove the drill bit, it is only necessary to remove the positioning pin, thereby achieving convenient installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the device of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the drilling equipment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the assembly equipment of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the suction cup type manipulator of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the assembly head of the utility model. DETAILED DESCRIPTION

[0027] Figure 1 The utility model is a schematic diagram of the device, comprising: a base (1), a drilling device (2), an assembly device (3), a conveyor belt II (4), a suction cup manipulator I (5), a conveyor belt I (6), an assembly workbench (7), a drilling workbench (8), and a suction cup manipulator II (9).

[0028] Figure 2 The present invention is a schematic structural diagram of a drilling device (2), comprising: a drill bit (201), a drilling mainframe box (202), a first column (203), a first positioning column (204), a drilling fixture (205), and a fixture hydraulic cylinder I (206).

[0029] Figure 3 The utility model is a schematic diagram of the structure of the assembly equipment (3) of the utility model, comprising: an assembly head assembly (301), an assembly hydraulic cylinder (302), an assembly main box (303), a second column (304), a second positioning column (305), an assembly fixture (306), and a fixture hydraulic cylinder II (307).

[0030] Figure 4 The utility model is a schematic diagram of the structure of a suction cup type manipulator I (5) and a suction cup type manipulator II (9), comprising: a manipulator base (501), a manipulator arm column (502), a large arm (503), a small arm (504), an air pump (505), and a vacuum suction cup (506).

[0031] Figure 5 The schematic diagram of the structure of the assembly head of the utility model is as follows: the assembly head is a short cylindrical rod with a hollow bottom, a groove is processed on the bottom of the assembly head, a magnet (301-1) is installed in the groove, and a step (301-2) is processed inside the assembly head.

[0032] The working principle of the utility model is as follows:

[0033] When the gate pad to be drilled passes through the conveyor belt I and arrives at the drilling equipment, the suction cup manipulator I adsorbs the gate pad on the vacuum suction cup, rotates the manipulator base, passes the processing holes at both ends of the gate pad through the first positioning column, and places it on the drilling processing table, and the clamp hydraulic cylinder I pushes the clamp to the gate pad, clamps it stably, and then drills at the predetermined position; the drilling equipment is controlled by the drilling main box, and the height of the drill bit is controlled by its sliding on the first column; since the through hole sizes required for the adjuster and friction block of the powder metallurgy gate pad are different, the drill bit includes two sizes of drill bits, which are fixed to the drilling equipment by cylindrical pins and have a built-in drill bit changer; if it is necessary to process circular holes of different sizes, the drill bit changer can automatically replace the drill bit; if the drill bit needs to be disassembled, it only needs to remove the positioning pin; after the drilling is completed, the suction cup manipulator I places the drilled gate pad back on the conveyor belt I for the next process.

[0034] When the brake pad with the adjuster and friction block installed and the spring retaining ring to be assembled arrives at the assembly equipment via conveyor belt II, the suction cup manipulator II performs the same action as the suction cup manipulator I to place the brake pad on the assembly processing table, and the clamp hydraulic cylinder II pushes the clamp to the brake pad, clamps it stably, and then assembles it at the predetermined position; the assembly equipment is controlled by the assembly main box, and the height of the assembly head assembly is controlled by its sliding on the second column; since 18 friction blocks need to be installed on a single brake pad, the assembly head assembly includes 18 assembly heads, each of which is a bottom The assembly head is a hollow cylindrical short rod with a groove at the bottom. The magnet is installed in the groove and a step is processed inside the assembly head. The spring retaining ring is adsorbed in the assembly head under the action of the magnet. When the assembly head assembly reaches the predetermined position, the assembly hydraulic cylinder pushes the piston rod so that the assembly head assembly as a whole has downward pressure. At the same time, the 18 assembly heads press the spring retaining ring into the groove of each friction block under the action of the step, thereby fixing the friction block. After the assembly is completed, the suction cup manipulator II places the assembled brake pad back on the conveyor belt II for the next process.

[0035] The setting of the processing device realizes the automated production and processing of powder metallurgy brake pads for EMUs, reduces the conversion of each workstation, and improves the processing efficiency and processing accuracy.

Claims

1. A powder metallurgy brake pad processing device for EMU, Features: The invention comprises a base (1), a drilling device (2), an assembly device (3), a conveyor belt II (4), a suction cup manipulator I (5), a conveyor belt I (6), an assembly workbench (7), a drilling workbench (8), and a suction cup manipulator II (9); the drilling device (2), the assembly device (3), the suction cup manipulator I (5), and the suction cup manipulator II (9) are all placed on the same base (1); the drilling device (2), the drilling workbench (8), the suction cup manipulator I (5), and the conveyor belt I (6) form a brake pad drilling production line; the assembly device (3), the assembly workbench (7), the suction cup manipulator II (9), and the conveyor belt II (4) form a brake pad assembly production line.

2. A powder metallurgy brake pad processing device for EMU according to claim 1, Features: The drilling equipment (2) comprises: a drill bit (201), a drilling main box (202), a first column (203), a first positioning column (204), a drilling fixture (205), and a fixture hydraulic cylinder I (206).

3. The powder metallurgy brake pad processing device for EMU according to claim 1, Features: The assembly equipment (3) comprises: an assembly head assembly (301), an assembly hydraulic cylinder (302), an assembly main chassis (303), a second column (304), a second positioning column (305), an assembly fixture (306), and a fixture hydraulic cylinder II (307).

4. The powder metallurgy brake pad processing device for EMU according to claim 1, Features: The suction cup manipulator I (5) and the suction cup manipulator II (9) comprise: a manipulator base (501), a manipulator arm column (502), a large arm (503), a small arm (504), an air pump (505), and a vacuum suction cup (506).

5. The powder metallurgy brake pad processing device for EMU according to claim 1, Features: The drilling workbench (8) comprises: a first positioning column (204), a drilling fixture (205), and a fixture hydraulic cylinder I (206).

6. The powder metallurgy brake pad processing device for EMU according to claim 1, Features: The assembly workbench (7) comprises: a second positioning column (305), an assembly fixture (306), and a fixture hydraulic cylinder II (307).

7. The powder metallurgy brake pad processing device for EMU according to claim 2, Features: The drill bit (201) comprises drill bits of two sizes, is fixed on the drilling device by a cylindrical pin, and has a built-in drill bit changer.

8. The powder metallurgy brake pad processing device for EMU according to claim 3, Features: The assembly head assembly (301) comprises 18 assembly heads, each assembly head is a short cylindrical rod with a hollow bottom, a groove is processed on the bottom of the assembly head, a magnet (301-1) is installed in the groove, and a step (301-2) is processed inside the assembly head.

9. The powder metallurgy brake pad processing device for EMU according to claim 1, Features: The drilling fixture (205) and the assembly fixture (306) are both designed to be curved surfaces that match the curvature of the brake pad, and are assisted in positioning by a hydraulic cylinder.

10. The powder metallurgy brake pad processing device for EMU according to claim 1, Features: The first positioning column (204) and the second positioning column (305) are both designed as cone-shaped cylinders with a cone at the top and a cylinder at the bottom.

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