Automatic chamfering equipment for crank pin

Abstract

The utility model belongs to the technical field of machining equipment, and relates to automatic chamfering equipment for crank pins, which comprises a workbench (1), a plurality of polishing stations are arranged on the workbench (1), a polishing mechanism (2) is arranged at each station, a protection mechanism (3) is fixedly mounted on the periphery of each polishing mechanism (2), a control cabinet (4) is further arranged on the workbench (1), and the control cabinet (4) is connected with the polishing mechanisms (2). A dust removal mechanism (5) is arranged on one side of the workbench (1). According to the automatic chamfering equipment for the crank pin, through the structural arrangement, the automatic chamfering process of the crank pin can be achieved, the labor intensity is relieved, and the production efficiency is improved. And meanwhile, dust generated by grinding can be collected through the dust removal mechanism, and the safety can be improved by arranging the protection mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining equipment and relates to an automatic chamfering device for crank pins. Background Art

[0002] Crank pin chamfering mainly performs edge chamfering and surface finishing on the crank pin to achieve the specified geometric shape, surface finish and dimensional accuracy.

[0003] The crank pin chamfering process usually first clamps and fixes the crank pin using a fixture, then selects a suitable grinding wheel according to the material of the crank pin and the required surface quality, and then sets parameters such as appropriate grinding speed, feed rate, grinding depth, etc. to control the cutting force and thermal effect during the grinding process. However, the existing crank pin chamfering process has low automation and does not have good countermeasures for dealing with the grinding dust pollution generated during the chamfering process. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above problems and provide an automatic chamfering device for crank pins.

[0005] To achieve the above purpose, the utility model provides an automatic chamfering device for crank pins, which includes a workbench. A plurality of grinding stations are provided on the workbench, and a grinding mechanism is provided at each station. A protective mechanism is fixedly installed on the outer periphery of the grinding mechanism. A control cabinet is also provided on the workbench, and a dust removal mechanism is provided on one side of the workbench.

[0006] Further, the grinding mechanism includes a clamping component fixed on the workbench and a grinding component located above the clamping component;

[0007] The clamping component includes:

[0008] A rotating motor, fixedly installed on the workbench;

[0009] A clamping seat, fixedly installed on the rotating motor;

[0010] A central positioning plate is provided in the middle of the clamping seat, and a central positioning shaft is provided on the central positioning plate;

[0011] Pneumatic grippers are symmetrically arranged on both sides of the central positioning plate. A workpiece positioning member is fixedly installed on the pneumatic gripper. A workpiece profiling arc groove is provided on the workpiece positioning member, and a workpiece positioning pin is provided in the workpiece profiling arc groove.

[0012] Further, the grinding component includes a lifting cylinder and an electric grinding gun connected to the lifting cylinder. A rigid brush grinding head is installed on the electric grinding gun.

[0013] Further, the dust removal mechanism includes a dust removal cabinet, in which a blower, a pulse back blowing system, a bag dust removal system and a dust collection drawer are provided. It also includes a chamfer dust suction pipe and a table dust suction pipe connected to the bag dust removal system.

[0014] Further, the protection mechanism includes a protection frame, on which a lifting door is provided. The lifting door is of a transparent structure;

[0015] A protection grating is also installed on the protection frame.

[0016] The beneficial effects of the present utility model are as follows:

[0017] For the automatic chamfering device of the crank pin of the present utility model, through the above structural settings, the automatic chamfering process of the crank pin can be realized, the labor intensity can be reduced, and the production efficiency can be improved. At the same time, the dust generated by grinding can be collected by the dust removal mechanism, and the safety can be improved by setting the protection mechanism. Description of the Drawings

[0018] Figure 1 Schematically showing a three-dimensional view of the automatic chamfering device of the crank pin according to an embodiment of the present utility model;

[0019] Figure 2 Schematically showing a structural diagram of the grinding mechanism according to an embodiment of the present utility model;

[0020] Figure 3 Schematically showing the structure of the clamping assembly according to an embodiment of the present utility model Figure 1 ;

[0021] Figure 4 Schematically showing the structure of the clamping assembly according to an embodiment of the present utility model Figure 2 ;

[0022] Figure 5 Schematically showing a structural diagram of the dust removal mechanism according to an embodiment of the present utility model;

[0023] Figure 6 Schematically showing a structural diagram of the protection mechanism according to an embodiment of the present utility model.

[0024] The meanings represented by the reference numerals in the drawings are as follows:

[0025] 1. Workbench; 2. Grinding mechanism; 3. Protection mechanism; 4. Control cabinet; 5. Dust removal mechanism; 21. Clamping assembly; 22. Grinding assembly; 211. Rotating motor; 212. Clamping seat; 213. Central positioning plate; 214. Central positioning shaft; 215. Starting jaw; 216. Workpiece positioning piece; 217. Workpiece profiling arc groove; 218. Work positioning pin; 221. Lifting cylinder; 222. Grinding gun; 223. Steel brush grinding head; 51. Dust removal cabinet; 52. Fan; 53. Bag dust removal system; 54. Dust recovery drawer; 55. Chamfering dust suction pipe; 56. Tabletop dust suction pipe; 31. Protection frame; 32. Lifting door; 33. Protection grating. Detailed implementation manners

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0027] The present invention will be described in detail below with reference to the drawings and specific implementation manners. The implementation manners cannot be elaborated one by one here, but the implementation manners of the present invention are not limited to the following implementation manners.

[0028] Combined with Figures 1-6 As shown, the present invention provides a crank pin automatic chamfering device, including a workbench 1. A plurality of grinding stations are provided on the workbench 1, and a grinding mechanism 2 is provided at each grinding station for chamfering the crank pin. According to an embodiment of the present invention, a protection mechanism 3 is fixedly installed on the outer periphery of the grinding mechanism 2, a control cabinet 4 is also provided on the workbench 1, and a dust removal mechanism 5 is provided on one side of the workbench 1.

[0029] The crank pin automatic chamfering device of the present invention, through the above structural settings, can realize the automatic process of crank pin chamfering, reduce labor intensity, and improve production efficiency. At the same time, the dust removal mechanism 5 can be used to collect the dust generated by grinding, and the setting of the protection mechanism 3 can improve safety.

[0030] According to an embodiment of the present utility model, the grinding mechanism 2 includes a clamping assembly 21 fixed on the workbench 1 and a grinding assembly 22 located above the clamping assembly 21. In this embodiment, the clamping assembly 21 includes a rotating motor 211 and a clamping seat 212. Among them, the rotating motor 211 is fixedly installed on the workbench 1, and the clamping seat 212 is fixedly installed on the rotating motor 211. A central positioning plate 213 is provided in the middle of the clamping seat 212, and a central positioning shaft 214 is provided on the central positioning plate 213. Pneumatic grippers 215 are symmetrically provided on both sides of the central positioning plate 213. A workpiece positioning member 216 is fixedly installed on the pneumatic gripper 215. A workpiece profiling arc groove 217 is provided on the workpiece positioning member 216, and a workpiece positioning pin 218 is provided in the workpiece profiling arc groove 217.

[0031] For the automatic chamfering equipment of the crank pin of the present utility model, through the above structural arrangement, it is convenient to place, position and fix the workpiece, and can ensure the placement accuracy of the workpiece.

[0032] According to an embodiment of the present utility model, the grinding assembly 22 includes a lifting cylinder 221 and an electric grinding gun 222 connected to the lifting cylinder 221. A rigid brush grinding head 223 is installed on the electric grinding gun 222.

[0033] For the automatic chamfering equipment of the crank pin of the present utility model, after the feeding is completed, the rotating motor 211 drives the workpiece to rotate. At the same time, after the grinding assembly 22 is adjusted to a suitable position, the electric grinding gun 222 works to drive the rigid brush grinding head 223 to rotate to grind the workpiece.

[0034] According to an embodiment of the present utility model, the dust removal mechanism 5 includes a dust removal cabinet 51. Inside the dust removal cabinet 51, a blower 52, a bag dust removal system 53 and a dust recovery drawer 54 are provided from top to bottom. It also includes a chamfering dust suction pipe 55 and a table top dust suction pipe 56 connected to the bag dust removal system 53.

[0035] For the automatic chamfering equipment of the crank pin of the present utility model, through the setting of the dust removal mechanism 5, the dust generated during the chamfering of the workpiece can be collected together in a suction form for recycling, thereby reducing environmental pollution.

[0036] According to an embodiment of the present utility model, the protection mechanism 3 of the present utility model includes a protection frame 31. A lifting door 32 is provided on the protection frame 31. The lifting door 32 is of a transparent structure. A protection grating 33 is also installed on the protection frame 31.

[0037] For the automatic chamfering equipment of the crank pin of the present utility model, through the setting of the protection mechanism 3, the full-closed operation of the chamfering process can be realized. Through the setting of the transparent lifting door and the visual window, the chamfering process can be observed. At the same time, with the setting of the safety grating, the situation of personnel being injured can be avoided.

[0038] The above is only one embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An automatic chamfering device for a crank pin, comprising a workbench (1), wherein the workbench (1) is provided with a plurality of grinding stations, each station being provided with a grinding mechanism (2), characterized in that: A protective mechanism (3) is fixedly installed on the outer periphery of the grinding mechanism (2), a control cabinet (4) is also provided on the workbench (1), and a dust removal mechanism (5) is provided on one side of the workbench (1).

2. The crank pin automatic chamfering device according to claim 1, characterized in that: The grinding mechanism (2) comprises a clamping assembly (21) fixed on the workbench (1) and a grinding assembly (22) located above the clamping assembly (21); The clamping assembly (21) comprises: A rotating motor (211) is fixedly mounted on the workbench (1); A clamping seat (212) fixedly mounted on the rotating motor (211); A center positioning plate (213) is provided in the middle of the clamping seat (212), and a center positioning shaft (214) is provided on the center positioning plate (213); Pneumatic clamps (215) are symmetrically arranged on both sides of the central positioning plate (213), a workpiece positioning piece (216) is fixedly mounted on the pneumatic clamps (215), a workpiece profiling circular arc groove (217) is arranged on the workpiece profiling circular arc groove (217), and a workpiece positioning pin (218) is arranged in the workpiece profiling circular arc groove (217).

3. The crank pin automatic chamfering device according to claim 2, characterized in that: The grinding assembly (22) comprises a lifting cylinder (221) and an electric grinding gun (222) connected to the lifting cylinder (221), and the electric grinding gun (222) is equipped with a steel brush grinding head (223).

4. The crank pin automatic chamfering device according to claim 3, characterized in that: The dust removal mechanism (5) comprises a dust removal cabinet (51), wherein a fan (52), a bag dust removal system (53) and a dust recovery drawer (54) are arranged inside the dust removal cabinet (51), and further comprises a chamfered dust suction pipe (55) and a table dust suction pipe (56) connected to the bag dust removal system (53).

5. The crank pin automatic chamfering device according to claim 4, characterized in that: The protection mechanism (3) comprises a protection frame (31), a lifting door (32) is provided on the protection frame (31), and the lifting door (32) is a transparent structure; A protective grating (33) is also installed on the protective frame (31).

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