A shaft hole grinding device

Abstract

The application relates to the technical field of machining, and particularly discloses an axle hole grinding device, which comprises a machining platform, a rotating jig and a grinding mechanism; the rotating jig comprises a rotating platform arranged on the machining platform and an outer supporting clamping unit arranged on the rotating platform and used for fixing a workpiece to be machined from the outside; the grinding mechanism comprises a vertical seat arranged on the rear side of the machining platform and extending to the top of the rotating platform, a first lifting driving unit arranged on the vertical seat, an extension driving unit arranged on the first lifting driving unit, a second lifting driving unit and a third lifting driving unit arranged on the extension driving unit, a grinding machining unit arranged on the second lifting driving unit and used for grinding an axle hole of the workpiece to be machined, and an inner diameter detection unit arranged on the third lifting driving unit and used for detecting the axle hole grinding; based on the above structure, the grinding efficiency of the belt pulley is improved, the equipment investment of an enterprise is reduced, and the labor intensity of an operator is reduced.

Description

Technical Field

[0001] This application relates to the field of machining technology, and specifically discloses a shaft hole grinding device. Background Technology

[0002] Cranes are mechanical equipment used for handling goods, capable of completing processes such as picking up, moving, and unloading materials. They are widely used in ports, docks, shipyards, hydroelectric power station construction sites, and other places. Cranes are the most widely used and numerous type of lifting machinery. One of the main components of a crane is the crane pulley, which is used to achieve the vertical lifting and horizontal movement of the crane's handling mechanism. When machining pulleys, the shaft hole of the pulley needs to be ground. Furthermore, to ensure that the diameter of the shaft-like parts can be fitted to the pulley hole, the diameter of the pulley hole needs to be inspected. However, existing grinding equipment has the following shortcomings:

[0003] First, all of them use multiple calipers to fix the pulley, which is quite troublesome to operate and cannot quickly clamp the pulley;

[0004] Secondly, both methods involve two steps: after grinding the shaft hole of the pulley, the operator then moves it to the testing machine for inner diameter testing. This method not only increases the handling pressure on the operator but also increases the company's equipment investment, and it does not improve work efficiency.

[0005] To address the aforementioned problems, this application discloses a shaft hole grinding apparatus. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this application discloses a shaft hole grinding device.

[0007] To achieve the above objectives, the technical solution adopted in this application is: a shaft hole grinding device, including a processing platform, a rotary fixture and a grinding mechanism; the rotary fixture includes a rotary platform disposed on the processing platform and an external support clamping unit disposed on the rotary platform for fixing the workpiece from the outside;

[0008] The grinding mechanism includes a stand located behind the processing platform and extending directly above the rotating platform, a first lifting drive unit located on the stand, a telescopic drive unit located on the first lifting drive unit, a second lifting drive unit and a third lifting drive unit located on the telescopic drive unit, a grinding processing unit located on the second lifting drive unit for grinding the shaft hole of the workpiece, and an inner diameter detection unit located on the third lifting drive unit for detecting the grinding of the shaft hole.

[0009] More preferably, the rotary platform includes a hollow truncated cone disposed on the processing platform, an annular guide rail disposed on the outer edge of the hollow truncated cone, a platform body slidably disposed on the annular guide rail, a reduction motor disposed inside the hollow truncated cone and having a gear mounted on its output shaft, and an annular rack disposed at the bottom of the platform body and meshing with the gear.

[0010] More preferably, the external support clamping unit includes a bearing support mounted above the platform body. The bearing support has protrusions integrally formed on its four sides. A first linear guide rail extends from the top of each of the four protrusions toward the inner side of the bearing support. An inverted L-shaped sliding clamp is slidably mounted above each of the four first linear guide rails. An L-shaped clamping part is fixed above each of the four inverted L-shaped sliding clamps. A cylinder is provided at the bottom of the bearing support. A lifting plate is connected to the piston rod of the cylinder. An L-shaped support is provided on each of the four sides of the lifting plate. A first mounting groove and a second mounting groove are respectively opened on the vertical part of each L-shaped support and the vertical part of the corresponding inverted L-shaped sliding clamp. A connecting rod is hinged between the first mounting groove and the second mounting groove.

[0011] More preferably, the first lifting drive unit includes a first servo linear module disposed vertically on a stand, second linear guide rails disposed on the stand on both sides of the first servo linear module, and a first slide table slidably disposed on the two linear guide rails and connected to the first servo linear module.

[0012] More preferably, the telescopic drive unit includes a second servo linear module laterally disposed on the first slide, third linear guides disposed on the first slide on both sides of the second servo linear module, and a second slide slidably disposed on the two third linear guides and connected to the second servo linear module.

[0013] More preferably, the first lifting drive unit and the second lifting drive unit are respectively the third servo linear module and the fourth servo linear module.

[0014] More preferably, the grinding processing unit includes a bearing housing connected to the third servo linear module, a power motor connected to and disposed above the bearing housing, and a grinding head connected to the bottom of the bearing housing.

[0015] More preferably, the inner diameter detection unit includes a mounting bracket connected to the fourth servo linear module and a probe that is vertically inserted into the mounting bracket and extends downward.

[0016] This application achieves the following beneficial effects:

[0017] 1. The shaft hole grinding device provided in this application can quickly clamp the pulley through the external support clamping unit, and when the rotating platform drives the external support clamping unit to rotate, the inner diameter of the pulley can be quickly ground through the lifting and lowering of the second lifting drive unit in conjunction with the grinding processing unit. Compared with the shaft hole grinding device in the prior art, the working efficiency is greatly improved.

[0018] 2. The shaft hole grinding device provided in this application adds an inner diameter detection unit, which can perform inner diameter detection after the shaft hole grinding is completed. This avoids the need for enterprises to add an inner diameter detection machine separately, reducing equipment investment. At the same time, it avoids operators repeatedly moving the pulley, reducing the labor intensity of operators, and has high application value.

[0019] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures shown in the description and the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the disclosure of this application and, together with the specification, serve to explain the principles of this disclosure.

[0021] Figure 1 This is a schematic diagram of the overall structure disclosed in this application;

[0022] Figure 2 This is a schematic diagram of the rotating platform structure disclosed in this application;

[0023] Figure 3 This is a schematic diagram of the external support clamping unit structure disclosed in this application;

[0024] Figure 4 This is a schematic diagram of the grinding mechanism structure disclosed in this application;

[0025] In the diagram: 10. Machining platform; 20. Rotary jig; 21. Rotary platform; 211. Hollow frustum; 212. Annular guide rail; 213. Platform body; 214. Gear motor; 215. Gear; 216. Annular rack; 22. External support clamping unit; 221. Bearing support; 222. First linear guide rail; 223. Inverted L-shaped sliding clamp; 2231. Second mounting slot; 224. Regular L-shaped clamping part; 225. Cylinder; 226. Lifting plate; 227. Regular L-shaped support; 2271. First mounting slot; 228. Connecting rod; 30. Grinding mechanism; 31. Stand; 32. First lifting drive unit; 321. First servo linear module; 322. Second linear guide rail; 323. First slide table; 33. Telescopic drive unit; 331. Second servo linear module; 332. Third linear guide rail; 333. Second slide table; 34. Second lifting drive unit; 35. Grinding processing unit; 351. Bearing box; 352. Power motor; 353. Grinding head; 36. Third lifting drive unit; 37. Inner diameter detection unit; 371. Mounting support; 372. Probe. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0027] In the description of this application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the component or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Example

[0028] To address the problems of high equipment investment, low work efficiency, and inability to reduce the labor intensity of operators in existing shaft hole grinding devices, reference is made to... Figures 1-4 As shown, this application discloses a shaft hole grinding device, including a processing platform 10, a rotary fixture 20 and a grinding mechanism 30; the rotary fixture 20 includes a rotary platform 21 disposed on the processing platform 10 and an external support clamping unit 22 disposed on the rotary platform 21 for fixing the workpiece from the outside. In actual use, the operator places the pulley to be processed on the external support clamping unit 22 and clamps it by the external support clamping unit 22, while the rotary platform 21 works when the grinding mechanism 30 grinds the shaft hole;

[0029] The grinding mechanism 30 includes a stand 31 located behind the processing platform 10 and extending directly above the rotating platform 21; a first lifting drive unit 32 mounted on the stand 31; a telescopic drive unit 33 mounted on the first lifting drive unit 32; a second lifting drive unit 34 and a third lifting drive unit 36 ​​mounted on the telescopic drive unit 33; a grinding processing unit 35 mounted on the second lifting drive unit 34 for grinding the shaft hole of the workpiece; and an inner diameter detection unit 37 mounted on the third lifting drive unit 36 ​​for detecting the grinding of the shaft hole. After the external clamping unit 22 clamps the pulley to be processed, the first lifting drive unit 32 drives the telescopic drive unit 33 to descend to a set height. The telescopic drive unit 33 drives the second lifting drive unit 34 to directly above the pulley, and the second lifting drive unit 34 drives the grinding unit 35 to descend to contact one side of the inner wall of the shaft hole. After that, the rotating platform 21 and the grinding unit 35 work together. During the rotation of the pulley, the grinding unit 35 grinds the inner wall of the pulley. When the grinding work is completed, the telescopic drive unit 33 drives the third lifting drive unit 36 ​​to directly above the pulley, and the third lifting drive unit 36 ​​drives the inner diameter detection unit 37 to be inserted into the entire shaft hole. This allows the inner diameter detection unit 37 to detect the inner diameter of the ground shaft hole and determine whether the inner diameter is qualified.

[0030] For example, the rotary platform 21 of this application includes a hollow frustum 211 disposed on the processing platform 10, an annular guide rail 212 disposed on the outer edge of the hollow frustum 211, a platform body 213 slidably disposed on the annular guide rail 212, a reduction motor 214 disposed inside the hollow frustum 211 and having a gear 215 mounted on its output shaft, and an annular rack 216 disposed at the bottom of the platform body 213 and meshing with the gear 215. During the grinding process, the reduction motor 214 of this application drives the gear 215 on its output shaft to rotate. At this time, the annular rack 216 cooperates with it to drive the platform body 213 to rotate, and the external support clamping unit 22 disposed on the platform body 213 and the pulley clamped on the external support clamping unit 22 will rotate.

[0031] The external support clamping unit 22 includes a bearing support 221 mounted above the platform body 213. Each of the four sides of the bearing support 221 has an integrally formed protrusion (not shown). Above each of the four protrusions, a first linear guide rail 222 extends inward toward the bearing support 221. Above each of the four first linear guide rails 222, an inverted L-shaped sliding clamping block 223 is slidably mounted. Above each of the four inverted L-shaped sliding clamping blocks 223, a regular L-shaped clamping part 224 is fixed. At the bottom of the bearing support 221, a cylinder 225 is provided. A lifting plate 226 is connected to the piston rod of the cylinder 225. Each of the four sides of the lifting plate 226 has a regular L-shaped support 224. 27. Each L-shaped support 227 and its corresponding inverted L-shaped sliding clamp 223 have a first mounting groove 2271 and a second mounting groove 2231 respectively. A connecting rod 228 is hinged between the first mounting groove 2271 and the second mounting groove 2231. When the operator places the pulley to be processed above the four L-shaped clamping parts 224, the cylinder 225 will drive the lifting plate 226 to descend. At this time, the four connecting rods 228 will pull the four inverted L-shaped sliding clamps 223 to slide inward on the four first linear guide rails 222, so that the four L-shaped clamping parts 224 together clamp the pulley.

[0032] Similarly, by way of example, the first lifting drive unit 32 of this application includes a first servo linear module 321 disposed vertically on the stand 31, second linear guide rails 322 disposed on the stand 31 on both sides of the first servo linear module 321, and a first slide 323 slidably disposed on the two linear guide rails and connected to the first servo linear module 321. Under the drive of the first servo linear module 321, the first slide 323 will slide stably on the two linear guide rails. The telescopic drive unit 32 includes a second servo linear module 331 disposed laterally on the first slide 323, third linear guide rails 332 disposed on the first slide 323 on both sides of the second servo linear module 331, and a second slide 33 slidably disposed on the two third linear guide rails 332 and connected to the second servo linear module 331. Similarly, under the drive of the second servo linear module 331, the second slide 33 will slide on the two linear guide rails.

[0033] Similarly, as an example, the first lifting drive unit 32 and the second lifting drive unit 34 of this application are respectively the third servo linear module and the fourth servo linear module. The third servo linear module and the fourth linear module have the same structure as the first servo linear module 321 and the second servo linear module 331 mentioned above, and are all technical means that can be directly obtained from the market, so they will not be described in detail here.

[0034] In one specific embodiment, the grinding processing unit 35 of this application includes a bearing housing 351 connected to a third servo linear module, a power motor 352 connected above the bearing housing 351, and a grinding head 353 connected to the bottom of the bearing housing 351. When grinding the shaft hole of the pulley, the third servo linear module drives the bearing housing 351 to descend. After it reaches the position, the power motor 352 will cooperate with the bearing housing 351 to drive the grinding head 353 to rotate (the grinding head 353 rotates against the inner wall of one side of the shaft hole), and grind the shaft hole while the pulley is rotating.

[0035] In one specific embodiment, the inner diameter detection unit 37 of this application includes a mounting bracket 371 connected to the fourth servo linear module and a probe 372 that is vertically inserted into the mounting bracket 371 and extends downward. When the inner diameter of the ground shaft hole is detected, the fourth servo linear module drives the mounting bracket 371 to descend. When the probe 372 is inserted into the ground shaft hole, it can detect whether the specific inner diameter value meets the set inner diameter value.

[0036] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The above embodiments are only for illustrating the technical concept and features of this application, and are intended to enable those skilled in the art to understand the content of this application and implement it accordingly. They should not be used to limit the scope of protection of this application. All equivalent changes or modifications made in accordance with the spirit and essence of this application should be included within the scope of protection of this application.

Claims

1. A shaft hole grinding device, characterized in that, It includes a processing platform (10), a rotary fixture (20), and a grinding mechanism (30); the rotary fixture (20) includes a rotary platform (21) disposed on the processing platform (10) and an external support clamping unit (22) disposed on the rotary platform (21) for fixing the workpiece from the outside. The grinding mechanism (30) includes a stand (31) located behind the processing platform (10) and extending directly above the rotating platform (21), a first lifting drive unit (32) located on the stand (31), a telescopic drive unit (33) located on the first lifting drive unit (32), a second lifting drive unit (34) and a third lifting drive unit (36) located on the telescopic drive unit (33), a grinding processing unit (35) located on the second lifting drive unit (34) for grinding the shaft hole of the workpiece, and an inner diameter detection unit (37) located on the third lifting drive unit (36) for detecting the grinding of the shaft hole.

2. The shaft hole grinding device according to claim 1, characterized in that, The rotating platform (21) includes a hollow frustum (211) on the processing platform (10), an annular guide rail (212) on the outer edge of the hollow frustum (211), a platform body (213) slidably mounted on the annular guide rail (212), a geared motor (214) located inside the hollow frustum (211) with a gear (215) mounted on its output shaft, and an annular rack (216) located at the bottom of the platform body (213) and meshing with the gear (215).

3. The shaft hole grinding device according to claim 2, characterized in that, The external support clamping unit (22) includes a bearing support (221) mounted on the platform body (213). Each of the four sides of the bearing support (221) has an integrally formed protrusion. Above each of the four protrusions, a first linear guide rail (222) extends inwards towards the bearing support (221). Above each of the four first linear guide rails (222), an inverted L-shaped sliding clamp (223) is slidably mounted. Above each of the four inverted L-shaped sliding clamps (223), a regular L-shaped clamping part (224) is fixed. The bearing support ( The bottom of 221) is provided with a cylinder (225), and a lifting plate (226) is connected to the piston rod of the cylinder (225). The four sides of the lifting plate (226) are respectively provided with L-shaped supports (227). The vertical part of each L-shaped support (227) and the vertical part of the corresponding inverted L-shaped sliding clamp (223) are respectively provided with a first mounting groove (2271) and a second mounting groove (2231). A connecting rod (228) is hinged between the first mounting groove (2271) and the second mounting groove (2231).

4. The shaft hole grinding device according to claim 1, characterized in that, The first lifting drive unit (32) includes a first servo linear module (321) mounted vertically on a stand (31), second linear guide rails (322) mounted on the stand (31) on both sides of the first servo linear module (321), and a first slide (323) slidably mounted on the two linear guide rails and connected to the first servo linear module (321).

5. The shaft hole grinding device according to claim 1, characterized in that, The telescopic drive unit (33) includes a second servo linear module (331) horizontally disposed on the first slide (323), third linear guides (332) respectively disposed on the first slide (323) on both sides of the second servo linear module (331), and a second slide (333) slidably disposed on the two third linear guides (332) and connected to the second servo linear module (331).

6. The shaft hole grinding device according to claim 1, characterized in that, The first lifting drive unit (32) and the second lifting drive unit (34) are the third servo linear module and the fourth servo linear module, respectively.

7. The shaft hole grinding device according to claim 6, characterized in that, The grinding processing unit (35) includes a bearing housing (351) connected to the third servo linear module, a power motor (352) connected to the top of the bearing housing (351), and a grinding head (353) connected to the bottom of the bearing housing (351).

8. A shaft hole grinding device according to claim 6, characterized in that, The inner diameter detection unit (37) includes a mounting bracket (371) connected to the fourth servo linear module and a probe (372) that is vertically inserted into the mounting bracket (371) and extends downward.

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