Polishing mechanism for plane shape of end face of oil pump piston

Abstract

The utility model discloses an oil pump piston end face plane shape polishing mechanism which comprises a base body, a shifting mechanism, a polishing assembly and a clamp mechanism, the clamp mechanism is redesigned in the scheme, an upper clamping base is moved to move towards or away from a lower clamping base through a first telescopic mechanism, a piston is placed on the lower clamping base when the upper clamping base is away from the lower clamping base, and the upper clamping base and the lower clamping base are combined to form clamping. A second telescopic mechanism moves a sliding seat, the sliding seat moves relative to a limiting frame, an elastic piece promotes a lower clamping seat to rotate relative to the sliding seat, a protruding column synchronously moves along the upper inclined face of the limiting frame, and the moving distance of the sliding seat is matched with the inclined face of the limiting frame to limit the rotating amplitude of the lower clamping seat. And the lower clamping seat rotates to enable the piston in the cavity to slide down to finish unloading, the sliding seat is reset, the lower clamping seat is reset under the action of the inclined surface of the limiting frame, the efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding devices, in particular to a flat grinding mechanism for the end surface of an oil pump piston. Background Art

[0002] A grinding mechanism is required in the preparation of oil pumps. For example, when grinding the end face, a common grinding mechanism usually includes a clamp mechanism, a shift mechanism and a grinding assembly. The clamp mechanism clamps and fixes the piston, and the shift mechanism moves the grinding assembly to grind the piston end face. After the grinding is completed, the clamp mechanism is disengaged, and then manual unloading is required, which is inefficient. In order to improve efficiency, the grinding mechanism on the market adds an unloading assembly, and multiple sets of shift mechanisms are required to cooperate to complete the unloading, which is costly and needs to be improved. Utility Model Content

[0003] In order to solve at least one of the above technical defects, the utility model provides the following technical solutions:

[0004] The present application document discloses a planar grinding mechanism for the end face of an oil pump piston, comprising a seat body, a shifting mechanism, a grinding assembly, and a clamping mechanism. The seat body is provided with a shifting mechanism and a grinding assembly is provided at the moving end of the shifting mechanism. The clamping mechanism is provided on the seat body corresponding to the moving direction of the grinding assembly. The clamping mechanism comprises an upper clamping seat, a lower clamping seat, a telescopic mechanism 1, a telescopic mechanism 2, a sliding seat, an elastic member, a convex column, and a limit frame. The upper clamping seat is connected to the telescopic mechanism 1 and the telescopic mechanism 1 is provided on the seat body. The lower clamping seat is pivotally connected to the sliding seat and an elastic member is provided between the lower clamping seat and the sliding seat. The sliding seat is connected to the telescopic mechanism 2. The seat body is provided with a limit frame. The convex column is provided at the side wall of the lower clamping seat. During the movement of the sliding seat, the convex column moves along the inclined surface on the limit frame in cooperation with the elastic member.

[0005] In this scheme, the clamp mechanism is redesigned, and the upper clamp seat is moved toward or away from the lower clamp seat by telescopic mechanism one. When moving away, the piston is placed on the lower clamp seat, and the upper and lower clamp seats are combined to form a clamp. The shift mechanism moves the grinding mechanism to grind the end face of the piston, and the upper clamp seat is reset. The telescopic mechanism two moves the slide, and the slide moves relative to the limit frame. The elastic member causes the lower clamp seat to rotate relative to the slide, and the convex column is simultaneously moved along the upper inclined surface of the limit frame. The moving distance of the slide cooperates with the inclined surface of the limit frame to limit the rotation range of the lower clamp seat. The lower clamp seat rotates to make the piston in the cavity slide down to complete the unloading, and the slide is reset. The lower clamp seat is reset under the action of the inclined surface of the limit frame, thereby improving efficiency and reducing costs.

[0006] Furthermore, the limit frame includes a horizontal end and a vertical end, the tail end of the vertical end is fixed to the seat body and the horizontal end is fixed at the head end, and the bottom surface of the horizontal end is formed with a slope. During grinding, the convex column abuts against the slope, which is convenient for limiting the rotation range of the lower clamping seat and resetting the lower clamping seat at the same time.

[0007] Furthermore, the sliding seat and the grinding assembly move in the same direction, both moving horizontally, and the upper clamping seat moves longitudinally, so that the telescopic mechanism moves the upper clamping seat toward or away from the lower clamping seat, with a reasonable layout to improve the stability of operation.

[0008] Furthermore, the grinding assembly includes a transmission mechanism, a driving mechanism, and a grinding wheel, and the driving mechanism is connected to the grinding wheel through the transmission mechanism.

[0009] Furthermore, the displacement mechanism is of a screw type and a fixed plate is provided on its nut seat, a transmission mechanism is provided on the fixed plate, the grinding wheel is connected to the transmission mechanism, a driving mechanism is provided on the nut seat, and adding a fixed plate facilitates the installation of the grinding wheel, transmission mechanism, etc.

[0010] Furthermore, a mounting plate is provided on the seat body, and a telescopic mechanism 1 is provided on the mounting plate, and adding the mounting plate facilitates the installation of the telescopic mechanism 1.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model improves the composition of the clamp mechanism, and realizes the rotation of the lower clamp seat for unloading and resetting through the cooperation of the telescopic mechanism 2, the convex column, the limit frame, etc., which helps to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a structural schematic diagram of the flat grinding mechanism of the oil pump piston end face in Example 1;

[0015] Figure 2 It is a structural schematic diagram of the flat grinding mechanism of the oil pump piston end face in Example 1;

[0016] Wherein, the accompanying drawings are marked as follows:

[0017] 1. Seat body; 2. Nut seat; 3. Driving mechanism; 4. Transmission mechanism; 5. Fixed plate; 6. Grinding wheel; 7. Telescopic mechanism 1; 8. Mounting plate; 9. Guide cylinder; 10. Guide rod; 11. Upper clamp seat; 12. Lower clamp seat; 13. Rotation center point; 14. Limiting frame; 15. Boss; 16. Sliding seat; 17. Inclined surface; 18. Telescopic mechanism 2; 19. Elastic member; 20. Bracket 1; 21. Bracket 2. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Example 1

[0020] like Figure 1 , Figure 2 As shown, in this example, the flat grinding mechanism of the oil pump piston end face includes a seat body 1, a shifting mechanism, a grinding assembly, and a clamping mechanism, wherein the seat body 1 is L-shaped, and a shifting mechanism, such as a screw type, is installed on the top surface of the horizontal end of the seat body 1. The shifting mechanism extends horizontally along the horizontal end, and the grinding assembly is installed on the nut seat 2 in the shifting mechanism. For example, the grinding assembly includes a transmission mechanism 4, a driving mechanism 3, and a grinding wheel 6. The driving mechanism 3 is connected to the grinding wheel 6 through the transmission mechanism 4. A fixing plate 5 is installed on the nut seat 2 in the longitudinal direction, and a transmission mechanism 4 is installed on the fixing plate 5, such as a common synchronous belt and pulley transmission type, and the grinding wheel is connected to one of its pulleys, and a driving mechanism 3, such as a common driving motor, is installed on the nut seat 2, and the grinding assembly is reciprocated by the shifting mechanism.

[0021] A clamp mechanism is installed at the seat body 1 corresponding to the moving direction of the grinding assembly, and the clamp mechanism includes an upper clamp seat 11, a lower clamp seat 12, a telescopic mechanism 1 7, a telescopic mechanism 2 18, a slide seat 16, an elastic member 19, a convex column 15, and a limit frame 14. A mounting plate 8 is fixed at the longitudinal end of the seat body 1, and a telescopic mechanism 1 7, such as a cylinder, a liquid cylinder, etc., is longitudinally mounted on the mounting plate 8. A guide cylinder 9 is fixed on the mounting plate 8, and a guide rod 10 passes through the guide cylinder 9. The head end of the guide rod 10 is connected to the telescopic end of the telescopic mechanism 1 7, and the tail end of the guide rod 10 passes through the guide cylinder 9 and is connected to the top surface of the upper clamp seat 11 below. The upper clamp seat is moved up and down by the telescopic mechanism 1 7, and then the upper clamp seat is upwardly separated from the lower clamp seat, which is convenient for placing a piston, etc., or the upper clamp seat is close to the lower clamp seat to form a clamping action, and the piston placed at the lower clamp seat 12 is clamped and fixed, and then the shifting mechanism moves the grinding assembly to grind the fixed piston end face.

[0022] In this example, a slide 16 is slidably connected at the top surface of the horizontal end of the seat body 1, and the moving direction of the slide 16 is consistent with the moving direction of the grinding mechanism. A telescopic mechanism 18, such as a cylinder, a hydraulic cylinder, etc., is installed on the seat body 1 at the right end of the slide 16. The telescopic end of the telescopic mechanism 18 is connected to the slide 16. The lower clamping seat 12 is on the slide 16, and a bracket 20 is fixed at the end of the lower clamping seat 12. A bracket 21 is fixed at the end of the slide 16. The bracket 20 is pivotally connected with the bracket 21, such as Figure 1 As shown, the rotation center point 13 is located on the right side of the slide seat 16, and a mounting groove is formed on the top surface of the slide seat 16 corresponding to the lower clamp seat 12. An elastic member 19, such as a spring, is placed in the mounting groove, and both ends of the spring respectively abut against the bottom of the groove and the bottom surface of the lower clamp seat.

[0023] A convex column 15 is formed on the side wall of the lower clamping seat 12, and a limit frame 14 is fixed on the seat body 1. The limit frame includes a horizontal end and a vertical end. The tail end of the vertical end is fixed to the seat body 1 below the slide 16, and the head end of the vertical end is fixed to the horizontal end along the moving direction of the slide. The bottom surface of the horizontal end is formed with an inclined surface 17, such as Figure 1 As shown, when the upper and lower clamping seats clamp the piston, the protruding column abuts against the low end of the inclined surface.

[0024] When the grinding is completed, the upper clamping seat moves upward to reset, and the telescopic mechanism 2 moves the slide. Under the action of the elastic member, the lower clamping seat rotates relative to the slide, and the convex column moves along the inclined surface at the horizontal end of the limit frame to limit the rotation range. A guide plate can be placed at the left end of the seat body, and a conveying mechanism can be placed under the guide plate. After the lower clamping seat rotates, the piston in the cavity slides onto the guide plate, and then slides onto the conveying mechanism to be transported to the next process.

[0025] Afterwards, the telescopic mechanism is reset, the slide is reset, and under the action of the inclined plane, the convex column moves downward to synchronously reset the lower clamping seat relative to the slide, and the elastic member is reset, which helps to reduce costs.

[0026] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A flat grinding mechanism for the end face of an oil pump piston, comprising a seat, a shifting mechanism, a grinding assembly, and a clamping mechanism, wherein the seat is provided with a shifting mechanism and a grinding assembly is provided at the moving end of the shifting mechanism, and a clamping mechanism is provided on the seat corresponding to the moving direction of the grinding assembly, characterized in that: The clamping mechanism includes an upper clamping seat, a lower clamping seat, a telescopic mechanism 1, a telescopic mechanism 2, a sliding seat, an elastic member, a convex column, and a limit frame. The upper clamping seat is connected to the telescopic mechanism 1 and the telescopic mechanism 1 is arranged on the seat body. The lower clamping seat is pivotally connected to the sliding seat and an elastic member is arranged between the lower clamping seat and the sliding seat. The sliding seat is connected to the telescopic mechanism 2, and a limit frame is arranged on the seat body. The convex column is arranged on the side wall of the lower clamping seat. During the movement of the sliding seat, the lower convex column moves along the inclined surface of the limit frame in cooperation with the elastic member.

2. The oil pump piston end surface plane grinding mechanism according to claim 1, characterized in that: The limit frame includes a horizontal end and a vertical end. The tail end of the vertical end is fixed to the seat body and the head end is fixed to the horizontal end. The bottom surface of the horizontal end is formed with an inclined surface. When grinding, the convex column abuts against the inclined surface.

3. The oil pump piston end surface plane grinding mechanism according to claim 1, characterized in that: The sliding seat and the grinding assembly move in the same direction, both moving in the horizontal direction, and the upper clamping seat moves in the longitudinal direction, so that the telescopic mechanism moves the upper clamping seat toward or away from the lower clamping seat.

4. The oil pump piston end surface plane grinding mechanism according to claim 1, characterized in that: The grinding assembly comprises a transmission mechanism, a driving mechanism and a grinding wheel, and the driving mechanism is connected with the grinding wheel through the transmission mechanism.

5. The oil pump piston end surface plane grinding mechanism according to claim 4, characterized in that: The displacement mechanism is of a lead screw type and a fixing plate is arranged on the nut seat thereof, a transmission mechanism is arranged on the fixing plate, the grinding wheel is connected to the transmission mechanism, and a driving mechanism is arranged on the nut seat.

6. The oil pump piston end surface plane grinding mechanism according to claim 1, characterized in that: A mounting plate is arranged on the seat body, and a telescopic mechanism 1 is arranged on the mounting plate.

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