Auxiliary device for brake shoe production

Abstract

The utility model relates to the technical field of train brake assembly production, in particular to an auxiliary device for brake shoe production, which comprises a pressing assembly, the pressing assembly comprises a press unit, an upper pressing die and a lower pressing die, a material ejecting mechanism is arranged at the lower end of the pressing assembly, and a material stroking mechanism is arranged on the rear side of the pressing assembly. An automatic workpiece taking and placing mechanism is arranged at one end of the pressing assembly, the material stroking mechanism comprises a material stroking support, a material stroking workbench is arranged at the upper end of the material stroking support, a front-back driving unit is arranged in the middle of the material stroking workbench, and a stroking manipulator is arranged at the upper end of the front-back driving unit; the automatic part taking and placing mechanism comprises a part taking and placing support, a horizontal conveying unit is arranged at the upper end of the part taking and placing support, and a clamping jaw unit is arranged at the upper end of the horizontal conveying unit. The forming quality of the brake shoe and the automation degree of equipment are improved, the stability of product quality is ensured, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of train braking component production, and in particular to an auxiliary device for brake shoe production. Background Technology

[0002] Brake shoes are crucial components of a train's braking system, primarily used to control the train's braking and deceleration to ensure safe operation. When the driver operates the braking system, the brake shoes rub against the train's wheels or gears, gradually slowing the train down until it comes to a stop. Brake shoes typically consist of friction materials, pads, and support plates. Classified by the type of friction material, they can be divided into two main types: powder metallurgy and organic synthesis. Regardless of the type, both require material preparation and pressing processes.

[0003] With the development of railway transportation, the demand for train brake shoes is constantly increasing. Traditional production methods are unable to meet the needs of large-scale production, resulting in low production efficiency. For example, the 200-ton brake pad and brake shoe powder forming hydraulic press produced by Shandong Woda Heavy Industry has low production efficiency, and the quality of the brake shoes cannot be guaranteed due to uneven material distribution on the upper surface. The production environment is also relatively harsh, failing to meet the requirements of high-quality development. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the background art mentioned above, and to provide an auxiliary device for brake shoe production. By setting a material smoothing mechanism and an automatic part picking and placing mechanism, the powdery synthetic material in the molding cavity is smoothed, making the pressing of the brake shoe more uniform, which is conducive to improving the molding quality of the brake shoe, ensuring the stability of product quality, improving the automation level of the equipment, and reducing the labor intensity of workers.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an auxiliary device for brake shoe production, including a pressing assembly, the pressing assembly including a press unit, an upper pressing die and a lower pressing die disposed inside the press unit, a material ejection mechanism disposed at the lower end of the pressing assembly, a material smoothing mechanism disposed at the rear side of the pressing assembly, and an automatic part picking and placing mechanism disposed at one end of the pressing assembly.

[0006] In operation, the operator stands at the front and places materials such as support plates into the forming cavity of the lower die. Then, a manual or automatic weighing and conveying mechanism pours the powdered synthetic material into the forming cavity. At this time, a smoothing mechanism smooths the powdered synthetic material in the forming cavity. The press unit then drives the upper die downwards, pressing the powdered synthetic material and support plates into brake shoes. Subsequently, the automatic pick-and-place mechanism moves to directly above the forming cavity, and the ejector mechanism ejects the pressed brake shoes, placing them within the automatic pick-and-place mechanism, which then transports the pressed brake shoes to the receiving tray.

[0007] The smoothing mechanism includes a smoothing support, a smoothing worktable is provided at the upper end of the smoothing support, a front and rear drive unit is provided in the middle of the smoothing worktable, and a smoothing robot is provided at the upper end of the front and rear drive unit.

[0008] The automatic pick-and-place mechanism includes a pick-and-place bracket, a horizontal conveying unit is provided at the upper end of the pick-and-place bracket, and a gripper unit is provided at the upper end of the horizontal conveying unit.

[0009] Furthermore, the front and rear drive unit includes front and rear support seats disposed on the material handling worktable. A ball screw is rotatably connected to the front and rear support seats. A screw nut is fitted in the middle of the ball screw. A servo motor is keyed to the end of the ball screw. A slide is connected to the upper end of the screw nut. The two sides of the slide are slidably connected to the material handling worktable via guide rails.

[0010] Furthermore, the smoothing robot includes a robot support mounted on the slide, and an up-and-down driving cylinder assembly is connected to the end of the robot support. A smoothing bracket is connected to the piston rod end of the cylinder assembly.

[0011] Furthermore, the lower end of the smoothing bracket is provided with multiple sets of smoothing scrapers, the width of the smoothing scrapers is smaller than the cavity width of the pressing mold, and the lower end of the smoothing scrapers has a rake-like structure.

[0012] Furthermore, the horizontal conveying unit includes a horizontal conveying guide rail pair disposed on the upper end of the pick-and-place bracket, and a conveying slide is slidably disposed on the horizontal conveying guide rail pair.

[0013] Furthermore, the conveying slide is provided with the gripper unit, the gripper unit includes a gripper bracket, a gripper cylinder is connected to the gripper bracket, and a gripper is provided on the gripper cylinder.

[0014] Furthermore, a receiving tray is provided on one side of the upper end of the pick-and-place bracket.

[0015] The beneficial effects of this utility model are: (1) By setting up a material smoothing mechanism, the powdery synthetic material in the molding cavity is smoothed out, making the pressing of the brake shoe more uniform, which is conducive to improving the molding quality of the brake shoe and ensuring the stability of product quality; (2) By setting up an automatic pick-and-place mechanism, the automation level of the equipment is improved and the labor intensity of workers is reduced. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the planar structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the material handling mechanism in this utility model;

[0020] Figure 4 This is a schematic diagram of the planar structure of the material handling mechanism in this utility model;

[0021] Figure 5 is a structural schematic diagram of the automatic component loading and unloading mechanism in this utility model;

[0022] Figure 6 is Figure 2 Enlarged structural diagram at point A;

[0023] In the diagram: 100, Pressing assembly; 110, Press unit; 120, Upper pressing die; 130, Lower pressing die; 140, Forming cavity; 200, Ejection mechanism; 300, Smoothing mechanism; 310, Smoothing support; 320, Smoothing worktable; 330, Front and rear drive unit; 331, Front and rear support seats; 332, Ball screw; 333, Screw nut; 334, Servo motor; 335, Slide table; 336, Guide rail; 340, Smoothing robot; 341, Robot support; 342, Cylinder assembly; 343, Smoothing support; 344, Smoothing scraper; 400, Automatic part loading and unloading mechanism. 410. Pick-up and drop-off bracket; 420. Horizontal conveying unit; 421. Horizontal conveying guide rail pair; 422. Conveying slide; 423. Drive motor; 424. Gear; 430. Receiving tray; 440. Gripper unit; 441. Gripper bracket; 442. Gripper cylinder; 443. Gripper. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] like Figures 1 to 6As shown, an auxiliary device for brake shoe production includes a pressing assembly 100. The pressing assembly 100 includes a press unit 110, an upper pressing die 120 and a lower pressing die 130 disposed inside the press unit 110. A ejector mechanism 200 is provided at the lower end of the pressing assembly 100. The ejector mechanism 200 consists of a hydraulic cylinder and a drive rod. The up-and-down movement of the piston rod of the hydraulic cylinder drives the drive rod to move up and down, thereby ejecting the formed brake shoe. A material handling mechanism 300 is provided at the rear of the pressing assembly 100, and an automatic part loading and unloading mechanism 400 is provided at one end of the pressing assembly 300.

[0026] The smoothing mechanism 300 includes a smoothing support 310, a smoothing worktable 320 is provided at the upper end of the smoothing support 310, a front and rear drive unit 330 is provided in the middle of the smoothing worktable 320, and a smoothing robot 340 is provided at the upper end of the front and rear drive unit 330.

[0027] The front and rear drive unit 330 includes front and rear support seats 331 disposed on the material handling worktable 320. A ball screw 332 is rotatably connected to the front and rear support seats 331. A screw nut 333 is disposed in the middle of the ball screw 332. A servo motor 334 is keyed to the end of the ball screw 332. A slide table 335 is connected to the upper end of the screw nut 333. The two sides of the slide table 335 are slidably connected to the material handling worktable 320 through guide rails 336.

[0028] The smoothing robot 340 includes a robot arm bracket 341 mounted on the slide table 335. An up-and-down driving cylinder assembly 342 is connected to the end of the robot arm bracket 341. A smoothing bracket 343 is connected to the piston rod end of the cylinder assembly 342. Four smoothing scrapers 344 are provided at the lower end of the smoothing bracket 343, and the lower end of each smoothing scraper 344 has a rake-like structure. The number of smoothing scrapers 344 is consistent with the number of forming cavities 140, and the width of each smoothing scraper 344 is 1-2 mm smaller than the width of the forming cavity 140. This facilitates the smoothing scrapers 344 smoothly entering the forming cavity 140 to complete the smoothing action.

[0029] The automatic pick-and-place mechanism 400 includes a pick-and-place bracket 410, a horizontal conveying unit 420 is provided on one side of the upper end of the pick-and-place bracket 410, a receiving tray 430 is provided on the other side of the upper end of the pick-and-place bracket 410, and a gripper unit 440 is provided at the upper end of the horizontal conveying unit 420.

[0030] The horizontal conveying unit 420 includes a horizontal conveying guide rail pair 421 disposed on the upper end of the pick-and-place bracket 410. A conveying slide 422 is slidably disposed on the horizontal conveying guide rail pair 421. A gripper unit 440 is disposed on the conveying slide 422. The gripper unit 440 includes a gripper bracket 441. A gripper cylinder 442 is connected to the gripper bracket 441. A gripper 443 is disposed on the gripper cylinder 442.

[0031] In use, the operator stands at the front and places the support plate and other materials into the molding cavity 140. Then, the powdered synthetic material is poured into the molding cavity 140 by manual or automatic weighing and conveying mechanism. At this time, the smoothing scraper 344 is at the upper limit position. The front and rear drive unit 330 is activated to drive the smoothing scraper 344 to the top of the molding cavity 140. The cylinder group 342 is activated, and the smoothing scraper 344 moves down and inserts into the powdered synthetic material. The front and rear drive unit 330 is activated to drive the smoothing scraper 344 to move back and forth, smoothing the powdered synthetic material in the molding cavity 140. Then, the press unit 110 drives the upper die 120 to move down, pressing the powdered synthetic material and the support plate into a brake shoe. Subsequently, the automatic pick-and-place mechanism 400 is activated, and the pick-and-place drive motor 423 drives the gear 424 to rotate. Under the meshing action of the rack and pinion and the gear 424, the conveying slide 422 is driven to the top of the forming cavity 140. At this time, the ejector mechanism 200 is activated, ejecting the pressed brake shoe and placing it inside the gripper 443. The gripper cylinder 442 is activated to clamp the brake shoe, and the automatic pick-and-place mechanism 400 transports the pressed brake shoe to the receiving tray 430.

[0032] This invention improves the molding quality of brake shoes, ensures product quality stability, increases the automation level of equipment, and reduces the labor intensity of workers.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An auxiliary device for brake shoe production, comprising a pressing assembly, the pressing assembly including a press unit, an upper pressing die and a lower pressing die disposed inside the press unit, and a ejector mechanism disposed at the lower end of the pressing assembly, characterized in that: A material handling mechanism is provided at the rear of the pressing assembly, and an automatic part loading and unloading mechanism is provided at one end of the pressing assembly. The smoothing mechanism includes a smoothing support, a smoothing worktable is provided at the upper end of the smoothing support, a front and rear drive unit is provided in the middle of the smoothing worktable, and a smoothing robot is provided at the upper end of the front and rear drive unit. The automatic pick-and-place mechanism includes a pick-and-place bracket, a horizontal conveying unit is provided at the upper end of the pick-and-place bracket, and a gripper unit is provided at the upper end of the horizontal conveying unit.

2. The auxiliary device for brake shoe production according to claim 1, characterized in that, The front and rear drive unit includes front and rear support seats disposed on the material handling worktable. A ball screw is rotatably connected to the front and rear support seats. A screw nut is disposed in the middle of the ball screw. A servo motor is keyed to the end of the ball screw. A slide is connected to the upper end of the screw nut. The two sides of the slide are slidably connected to the material handling worktable via guide rails.

3. The auxiliary device for brake shoe production according to claim 2, characterized in that, The smoothing robot includes a robot arm bracket mounted on the slide table. The end of the robot arm bracket is connected to a cylinder assembly that drives the robot arm up and down. The piston rod end of the cylinder assembly is connected to a smoothing bracket.

4. The auxiliary device for brake shoe production according to claim 3, characterized in that, The lower end of the smoothing bracket is provided with multiple sets of smoothing scrapers. The width of the smoothing scrapers is smaller than the cavity width of the pressing mold, and the lower end of the smoothing scrapers has a rake-like structure.

5. The auxiliary device for brake shoe production according to claim 1, characterized in that, The horizontal conveying unit includes a horizontal conveying guide rail pair disposed on the upper end of the pick-and-place bracket, and a conveying slide is slidably disposed on the horizontal conveying guide rail pair.

6. The auxiliary device for brake shoe production according to claim 5, characterized in that, The conveyor slide is provided with the gripper unit, which includes a gripper bracket, a gripper cylinder connected to the gripper bracket, and a gripper on the gripper cylinder.

7. The auxiliary device for brake shoe production according to claim 1, characterized in that, A receiving tray is provided on one side of the upper end of the pick-and-place bracket.

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