Machining and positioning device for oil pump shaft

Abstract

The utility model relates to the technical field of oil pump shaft machining and positioning, in particular to an oil pump shaft machining and positioning device which has the advantage of reducing use cost and comprises a box body, a lead screw and a motor, the lead screw is in threaded connection with two movable plates, fixing plates are arranged on the upper portions of the two movable plates, and connecting plates are arranged on the rear portions of the fixing plates. Supporting plates are arranged on the upper portions of the connecting plates, second threaded holes are formed in the middles of the supporting plates, the supporting plates are in threaded connection with threaded rods, the lower portions of the threaded rods are rotationally connected with another fixing plate, placing grooves are formed in the middles of the fixing plates, clamping plates are placed in the placing grooves, and the clamping plates are provided with a plurality of through holes; one end of each fixing plate is provided with a limiting plate, one end of each limiting plate is provided with a connecting rod, the upper portions of the fixing plates are provided with first threaded holes and are in threaded connection with first bolts, and one ends of the first bolts are in threaded connection with protective plates.

Description

Technical Field

[0001] The utility model relates to the technical field of machining positioning of oil pump shafts, and specifically relates to a machining positioning device for oil pump shafts. Background Technique

[0002] As is well known, the function of the oil pump is to raise the oil to a certain pressure and then forcibly pump it to the moving surfaces of each part of the engine. The oil pump shaft is an important component of the oil pump. During the cutting and grinding of the oil pump shaft, an oil pump shaft machining positioning device is needed to clamp the oil pump shaft.

[0003] The patent with the application number CN202322247641.4 discloses an oil pump shaft machining positioning device, belonging to the technical field of oil pump shaft machining positioning. It includes a bottom plate, on which two support columns are slidably installed, and the moving directions of the two support columns are opposite. An adjusting component for driving the support columns to slide is installed on the bottom plate. The tops of the support columns are fixedly connected with mounting frames. A pump shaft part is arranged between the two mounting frames, and a fixing component for fixing the pump shaft part is installed on the mounting frame.

[0004] Although this device improves the scope of application, after the mounting frame, the moving plate and the anti-slip sheet clamp the pump shaft part, the vibration force generated by the pump shaft part during machining acts on the mounting frame, the moving plate and the anti-slip sheet, which will generate a large frictional force on the mounting frame, the moving plate and the anti-slip sheet. Under the long-term friction effect, the mounting frame, the moving plate and the anti-slip sheet will be worn to a certain extent. Since the mounting frame and the support column, the moving plate and the threaded rod are respectively fixedly arranged and rotatably arranged, when maintenance or replacement is needed, the whole needs to be replaced, and the contact parts with the pump shaft part cannot be replaced separately, thus increasing a certain use cost. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides an oil pump shaft machining positioning device, which has the characteristic of reducing the use cost.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the present utility model provides the following technical solution: An oil pump shaft processing positioning device, comprising a box body, a lead screw and a motor. The lead screw is threadedly connected with two moving plates. Fixing plates are arranged on the upper parts of the two moving plates. Connecting plates are arranged at the rear parts of several fixing plates. Another fixing plate is arranged on the upper parts of several connecting plates. Placing grooves are arranged in the middle parts of several fixing plates, and clamping plates are placed in all of them. Several clamping plates are provided with several through holes. Limiting plates are arranged at one ends of several fixing plates. Connecting rods are arranged at one ends of several limiting plates, and are inserted into the through holes. First threaded holes are arranged on the upper parts of several fixing plates, and are threadedly connected with first bolts. One ends of several first bolts are threadedly connected with protective plates. Another limiting plate is arranged at one end of several protective plates. Several other connecting rods are arranged at one ends of several other protective plates, and are inserted into the through holes.

[0009] Further, the end faces on both sides of several clamping plates are tightly abutted against the end faces of the corresponding limiting plates, and the inner diameters of several clamping plates are smaller than the inner diameters of the limiting plates.

[0010] Further, the outer end faces of several connecting rods are fitted with the inner wall end faces of the corresponding through holes, and several connecting rods are made of metal materials.

[0011] Further, limiting rods are arranged on the upper parts of several fixing plates located at the upper part. Several support plates are provided with several through slots, and are penetrated by the corresponding limiting rods.

[0012] Preferably, there is a gap between several through slots and the corresponding second threaded holes.

[0013] Preferably, a sliding groove is arranged on the upper part of the box body, and is penetrated and slidably arranged with the moving plate.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides an oil pump shaft processing positioning device, which has the following beneficial effects:

[0016] For this oil pump shaft processing positioning device, when the surface of the clamping plate is worn to the extent that replacement is needed, only by screwing out the first bolt from the first threaded hole, the protective plate can be detached from the fixing plate. At this time, just grasp the clamping plate and pull it, and it can be pulled out from the placing groove for replacement, so that it is not necessary to replace several fixing plates as a whole, thereby reducing a certain use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present utility model;

[0018] Figure 2 A perspective schematic diagram of the cooperation and magnification of the moving plate, fixed plate, connecting plate, etc. of the present utility model;

[0019] Figure 3 A perspective schematic diagram of the cooperation and magnification of the clamping plate and through hole of the present utility model;

[0020] Figure 4 A perspective schematic diagram of the cooperation and magnification of the limiting plate, connecting rod and protective plate of the present utility model;

[0021] Figure 5 For the present utility model Figure 1 A partial enlarged structural schematic diagram of the position A shown in the figure.

[0022] In the figure: 1, box body; 2, lead screw; 3, motor; 4, moving plate; 5, fixed plate; 6, connecting plate; 7, placing groove; 8, clamping plate; 9, through hole; 10, limiting plate; 11, connecting rod; 12, first threaded hole; 13, first bolt; 14, protective plate; 15, screw rod; 16, support plate; 17, second threaded hole; 18, limiting rod; 19, through groove; 20, sliding groove. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5, A machining positioning device for an oil pump shaft of the present utility model includes a box body 1, a lead screw 2, and a motor 3. When the motor 3 is started, the motor 3 rotates, driving the lead screw 2 to rotate. The lead screw 2 is threadedly connected to two moving plates 4. A chute 20 is provided at the upper part of the box body 1, and both are arranged in a penetrating and sliding manner with the moving plates 4. When the lead screw 2 rotates, it drives the two moving plates 4 to move left and right, and at the same time, the moving plates 4 move left and right in the chute 20. Fixed plates 5 are provided at the upper parts of the two moving plates 4. Connecting plates 6 are provided at the rear parts of several fixed plates 5. Support plates 16 are provided at the upper parts of several connecting plates 6. Second threaded holes 17 are provided in the middle parts of several support plates 16, and screw rods 15 are threadedly connected thereto. The lower parts of several screw rods 15 are rotatably connected to another fixed plate 5. The screw rods 15 rotate in the second threaded holes 17 and then drive the lower fixed plates 5 to move up and down. Limiting rods 18 are provided at the upper parts of the several fixed plates 5 located at the upper part. Several support plates 16 are provided with several through slots 19, and all are arranged in a penetrating manner with the corresponding limiting rods 18. When the fixed plates 5 located at the upper part move up and down, the limiting rods 18 move up and down in the through slots 19 of the support plates 16 to prevent the fixed plates 5 from rotating. There is a gap between several through slots 19 and the corresponding second threaded holes 17 to facilitate the setting of the second threaded holes 17 and the through slots 19. Placing grooves 7 are provided in the middle parts of several fixed plates 5, and clamping plates 8 are placed therein. Several clamping plates 8 are provided with several through holes 9. Limiting plates 10 are provided at one ends of several fixed plates 5. Connecting rods 11 are provided at one ends of several limiting plates 10, and all are arranged in a plug-in manner with the through holes 9. Align the through holes 9 of the clamping plates 8 with the connecting rods 11 of the limiting plates 10, and then push them into the placing grooves 7 for installation. First threaded holes 12 are provided at the upper parts of several fixed plates 5, and first bolts 13 are threadedly connected thereto. One ends of several first bolts 13 are threadedly connected to protective plates 14. Limiting plates 10 are provided at one ends of several protective plates 14. Several other connecting rods 11 are provided at one ends of several other protective plates 14, and all are arranged in a plug-in manner with the through holes 9. Insert the connecting rods 11 at one ends of the limiting plates 10 on one side of the protective plates 14 into the through holes 9 of the clamping plates 8, and then screw the first bolts 13 into the first threaded holes 12 of the fixed plates 5. After installation, it is convenient for the disassembly and installation of the clamping plates 8. The two side end faces of several clamping plates 8 are tightly pressed against the end faces of the corresponding limiting plates 10 to improve the stability between the clamping plates 8 and the limiting plates 10. The inner diameters of several clamping plates 8 are all smaller than the inner diameters of the limiting plates 10, so that when the clamping plates 8 clamp the oil pump shaft, the outer wall of the oil pump shaft does not contact the inner wall of the limiting plates 10. The outer side end faces of several connecting rods 11 are fitted with the inner wall end faces of the corresponding through holes 9 to improve the stability between the connecting rods 11 and the through holes 9. Several connecting rods 11 are all made of metal materials, and the quality of the metal materials is good.

[0025] In summary, when using the machining positioning device for the oil pump shaft, the operator uses the device to clamp the oil pump shaft. During machining, when the wear on the inner walls of several clamping plates 8 reaches a certain degree and needs to be replaced, several first bolts 13 can be unscrewed, and then the protective plate 14 can be removed, driving several connecting rods 11 out of the through holes 9 of the clamping plates 8. Then, the clamping plates 8 are grasped and pulled out of the placement grooves 7, so that the through holes 9 of the clamping plates 8 are separated from the connecting rods 11 on one side of the limiting plates 10 on the fixing plate 5. After that, the new clamping plates 8 are placed in the placement grooves 7, the through holes 9 of the clamping plates 8 are aligned with the connecting rods 11 and then slid into the placement grooves 7, so that one side end face of the clamping plates 8 fits against the end face of the limiting plates 10. Then, the connecting rods 11 on one side of the limiting plates 10 on one side of the protective plate 14 are inserted into the through holes 9 of the clamping plates 8, the end face of the limiting plates 10 fits against the end face of the clamping plates 8, and then the first bolts 13 are screwed into the first threaded holes 12 to install the protective plate 14 on the fixing plate 5, and the replacement is completed.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil pump shaft machining and positioning device, comprising a housing (1), a lead screw (2) and a motor (3), characterized in that: The lead screw (2) is threadedly connected to two movable plates (4), the upper parts of the two movable plates (4) are each provided with a fixed plate (5), the rear parts of several of the fixed plates (5) are each provided with a connecting plate (6), the upper parts of several of the connecting plates are each provided with a supporting plate, the middle parts of several of the supporting plates (16) are each provided with a second threaded hole (17), and are each threadedly connected to a screw rod (15), the lower parts of several of the screw rods are rotatably connected to another fixed plate (5), the middle parts of several of the fixed plates (5) are each provided with a placement groove (7), and are each provided with a clamping plate (8), and several of the clamping plates (8) are each provided with several through holes (9), and several A limiting plate (10) is provided at one end of each of the fixing plates (5), a connecting rod (11) is provided at one end of several of the limiting plates (10), and is plugged into the through hole (9); a first threaded hole (12) is provided on the upper part of several of the fixing plates (5), and is threadedly connected with a first bolt (13); one end of several of the first bolts (13) is threadedly connected with a protective plate (14); another limiting plate (10) is provided at one end of several of the protective plates (14), and another connecting rod (11) is provided at one end of several of the other protective plates (14), and is plugged into the through hole (9).

2. The oil pump shaft machining and positioning device according to claim 1, characterized in that: The end surfaces of both sides of the plurality of clamping plates (8) are tightly pressed against the end surfaces of the corresponding limiting plates (10), and the inner diameters of the plurality of clamping plates (8) are smaller than the inner diameter of the limiting plates (10).

3. The oil pump shaft machining and positioning device according to claim 2, characterized in that: The outer end surfaces of the plurality of connecting rods (11) are in contact with the inner wall end surfaces of the corresponding through holes (9), and the plurality of connecting rods (11) are all made of metal material.

4. The oil pump shaft machining and positioning device according to claim 3, characterized in that: The upper parts of the plurality of fixing plates (5) located at the upper part are all provided with limiting rods (18), and the plurality of supporting plates (16) are all provided with a plurality of through slots (19) which are all arranged to penetrate the corresponding limiting rods (18).

5. The oil pump shaft machining and positioning device according to claim 4, characterized in that: A gap is provided between each of the plurality of through grooves (19) and the corresponding second threaded holes (17).

6. The oil pump shaft machining and positioning device according to claim 5, characterized in that: The upper part of the box body (1) is provided with a slide groove (20), and both are arranged to penetrate and slide with the movable plate (4).

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