Grinding machine for machining brake shoe assembly

Abstract

The utility model relates to the technical field of grinding machines, in particular to a grinding machine for machining a brake shoe assembly. According to the technical scheme, the device comprises an operation table, a back frame is fixed to the rear side of the upper end of the operation table, a grinding wheel box is slidably connected to the front side of the back frame through a hydraulic cylinder, a grinding wheel is installed in the grinding wheel box, a movable groove is formed in the position, corresponding to the grinding wheel, of the upper end of the operation table, and a movable base is slidably connected into the movable groove; a fixed frame is fixed to the upper end of the movable base, a swing plate is rotationally connected into the fixed frame and composed of a driving block and a fixed block, and a telescopic assembly is arranged between the driving block and the fixed block. According to the device, the arc surface of the brake shoe assembly can be polished in a swinging mode, the total length of the swinging plate can be adjusted according to the diameter of the arc surface, it is guaranteed that the arc surface can be attached to the surface of a grinding wheel at any swinging angle, and the machining efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding technology, specifically a grinding machine for processing brake shoe assemblies. Background Technology

[0002] It is a machine tool that grinds the surface of a workpiece using a high-speed rotating abrasive. It can process materials with high hardness (such as hardened steel and cemented carbide) as well as brittle materials (such as glass and granite), and is widely used in the precision machining of mechanical parts.

[0003] Grinding machines primarily utilize the high-speed rotation of grinding wheels to contact the workpiece surface and achieve the grinding effect. Common grinding machines, after fixing the workpiece, achieve rapid surface grinding through the reciprocating horizontal movement of the fixed table. However, linear horizontal movement cannot grind the arc surfaces of the workpiece brake shoe assembly. In this case, manual grinding or frequent angle adjustments are required to complete the work, which is relatively cumbersome and cannot achieve the goal of efficient production. Utility Model Content

[0004] The purpose of this invention is to provide a grinding machine for processing brake shoe assemblies, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes an operating table, a back frame fixed to the rear of the upper end of the operating table, a grinding wheel box slidably connected to the front of the back frame via a hydraulic cylinder, a grinding wheel installed inside the grinding wheel box, a movable groove opened at the upper end of the operating table corresponding to the grinding wheel, a movable base slidably connected within the movable groove, a fixed frame fixed to the upper end of the movable base, a swing plate rotatably connected within the fixed frame, the swing plate consisting of a driving block and a fixed block, and a telescopic component provided between the driving block and the fixed block.

[0006] Preferably, the upper end of the fixing block is provided with a fixing groove, and a pair of locking bolts are installed in the fixing groove.

[0007] Preferably, the telescopic assembly includes a lifting plate and a servo motor. The lifting plate is fixed to the bottom of the fixed block, the servo motor is fixed to the bottom of the drive block, and a threaded rod is fixed to the output end of the servo motor. The upper end of the threaded rod is threadedly connected to the lifting plate. A pair of limiting rods are fixed to the bottom of the fixed block, and the bottom of the limiting rods is slidably connected to the drive block.

[0008] Preferably, a rotary cylinder is fixed to the outside of the fixed frame, and a drive shaft is fixed to both the front and rear sides of the drive block and is rotatably connected to the fixed frame. The output end of the rotary cylinder is fixed to the drive shaft.

[0009] Preferably, a control panel is fixed to the front end of the operating table, a lead screw is rotatably connected to the center position of the movable slot, the lead screw passes through the movable base and is threadedly connected to the movable base, and the front end of the lead screw passes through the operating table and is fixedly connected to a manual crank.

[0010] Preferably, a guide rod is fixed in the movable groove and at a position aligned with the four corners of the movable base. The guide rod passes through the movable base and is slidably connected to the movable base.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the arc surface of the brake shoe assembly can be ground by swinging, and the total length of the swing plate can be adjusted according to the diameter of the arc surface, ensuring that the arc surface can fit against the surface of the grinding wheel at any swing angle, which greatly improves the processing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front view structure of a grinding machine for processing brake shoe assemblies according to the present invention.

[0013] Figure 2 This is a schematic diagram of the internal structure of a grinding machine fixing frame for machining brake shoe assemblies according to the present invention.

[0014] Figure 3 This is a side cross-sectional view of the grinding machine fixing frame for machining brake shoe assembly according to the present invention.

[0015] In the diagram: 1. Control panel; 11. Control panel; 12. Lead screw; 13. Guide rod; 14. Manual crank; 2. Back frame; 21. Grinding wheel box; 22. Grinding wheel; 3. Movable base; 4. Fixed frame; 41. Rotary cylinder; 5. Swing plate; 51. Drive block; 52. Fixed block; 53. Fixed groove; 54. Locking bolt; 55. Lifting plate; 56. Threaded rod; 57. Servo motor; 58. Limit rod. Detailed Implementation

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

[0017] Please see Figure 1-3This utility model provides a technical solution: it includes an operating table 1, a back frame 2 fixed to the rear side of the upper end of the operating table 1, a grinding wheel box 21 slidably connected to the front side of the back frame 2 via a hydraulic cylinder, a grinding wheel 22 installed in the grinding wheel box 21, a movable groove is opened at the upper end of the operating table 1 and at the position corresponding to the grinding wheel 22, a movable base 3 is slidably connected in the movable groove, a fixed frame 4 is fixed at the upper end of the movable base 3, a swing plate 5 is rotatably connected in the fixed frame 4, the swing plate 5 is composed of a driving block 51 and a fixed block 52, and a telescopic component is provided between the driving block 51 and the fixed block 52.

[0018] The upper end of the fixed block 52 is provided with a fixed groove 53, and a pair of locking bolts 54 are installed in the fixed groove 53. The telescopic component includes a lifting plate 55 and a servo motor 57. The lifting plate 55 is fixed to the bottom of the fixed block 52, and the servo motor 57 is fixed to the bottom of the drive block 51. A threaded rod 56 is fixed to the output end of the servo motor 57. The upper end of the threaded rod 56 is threadedly connected to the lifting plate 55. A pair of limit rods 58 are fixed to the bottom of the fixed block 52. The bottom of the limit rods 58 is slidably connected to the drive block 51. A rotary cylinder 41 is fixed to the outside of the fixed frame 4. Drive shafts are fixed to both the front and rear sides of the drive block 51 and are rotatably connected to the fixed frame 4. The output end of the rotary cylinder 41 is fixed to the drive shaft.

[0019] A control panel 11 is fixed to the front end of the operating table 1. A lead screw 12 is rotatably connected to the center of the movable slot. The lead screw 12 passes through the movable base 3 and is threadedly connected to the movable base 3. The front end of the lead screw 12 passes through the operating table 1 and is fixedly connected to a manual crank 14. A guide rod 13 is fixed in the movable slot and aligned with the four corners of the movable base 3. The guide rod 13 passes through the movable base 3 and is slidably connected to the movable base 3. The rotation of the manual crank 14 drives the lead screw 12 to rotate, causing the movable base 3 to move back and forth in the movable slot.

[0020] Working principle: First, connect the entire device to an external power source. Then, place the inner side of the brake shoe assembly into the fixing groove 53 and secure it with locking bolts 54. Next, use the rotary cylinder 41 to drive the swing plate 5 to reciprocate. Simultaneously, use the hydraulic cylinder to drive the grinding wheel 22 downwards until it abuts against the arc surface of the brake shoe assembly. Finally, start the grinding wheel 22 to rotate, achieving the purpose of grinding the arc surface. This rapid grinding of the arc surface improves work efficiency. In actual operation, since the arc diameter of different brake shoe assemblies varies, the rotation radius of the swing plate 5 needs to be adjusted. To make corresponding adjustments, it is necessary to ensure that the center of the arc of the brake shoe assembly coincides with the position of the swing shaft so that the arc surface always fits the grinding wheel 22. At this time, the drive of the output end of the servo motor 57 is used to drive the threaded rod 56 to rotate, so that the lifting plate 55 can extend and retract, thereby adjusting the length of the entire swing plate 5. Finally, during the grinding process, the rotation of the manual crank 14 can be used to drive the lead screw 12 to rotate, so that the movable base 3 moves back and forth in the movable groove, adjusting the contact position between the grinding wheel 22 and the brake shoe assembly to achieve the purpose of uniform grinding.

[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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 grinding machine for machining brake shoe assemblies, comprising an operating table (1), characterized in that: A back frame (2) is fixed to the rear side of the upper end of the operating table (1). A grinding wheel box (21) is slidably connected to the front side of the back frame (2) via a hydraulic cylinder. A grinding wheel (22) is installed in the grinding wheel box (21). An active groove is opened at the upper end of the operating table (1) and at the position corresponding to the grinding wheel (22). An active base (3) is slidably connected in the active groove. A fixed frame (4) is fixed at the upper end of the active base (3). A swing plate (5) is rotatably connected in the fixed frame (4). The swing plate (5) is composed of a driving block (51) and a fixed block (52). A telescopic component is provided between the driving block (51) and the fixed block (52).

2. The grinding machine for machining brake shoe assemblies according to claim 1, characterized in that: The upper end of the fixing block (52) is provided with a fixing groove (53), and a pair of locking bolts (54) are installed in the fixing groove (53).

3. The grinding machine for machining brake shoe assemblies according to claim 1, characterized in that: The telescopic assembly includes a lifting plate (55) and a servo motor (57). The lifting plate (55) is fixed to the bottom of the fixing block (52), and the servo motor (57) is fixed to the bottom of the drive block (51). A threaded rod (56) is fixed to the output end of the servo motor (57). The upper end of the threaded rod (56) is threadedly connected to the lifting plate (55). A pair of limiting rods (58) are fixed to the bottom of the fixing block (52). The bottom of the limiting rods (58) is slidably connected to the drive block (51).

4. A grinding machine for machining brake shoe assemblies according to claim 1, characterized in that: A rotary cylinder (41) is fixed on the outside of the fixed frame (4). The drive block (51) has drive shafts fixed on both the front and rear sides and is rotatably connected to the fixed frame (4). The output end of the rotary cylinder (41) is fixed on the drive shaft.

5. A grinding machine for machining brake shoe assemblies according to claim 1, characterized in that: The control panel (1) is fixed to the front end of the operating table (1), and a lead screw (12) is rotatably connected to the center position of the movable slot. The lead screw (12) passes through the movable base (3) and is threadedly connected to the movable base (3). The front end of the lead screw (12) passes through the operating table (1) and is fixedly connected to a manual crank (14).

6. A grinding machine for machining brake shoe assemblies according to claim 5, characterized in that: A guide rod (13) is fixed in the movable groove and aligned with the four corners of the movable base (3). The guide rod (13) passes through the movable base (3) and is slidably connected to the movable base (3).

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