Polishing device for plunger production

Abstract

The utility model relates to the field of plunger production, and discloses a polishing device for plunger production, which comprises a main body, a plunger is arranged on the left side of the main body, a fixing plate is arranged on the left side of the plunger, a cylindrical rod is transversely arranged in the main body, a bidirectional thread groove is formed in the outer surface of the cylindrical rod, and a placing groove is formed in the main body. A motor is installed in the containing groove, the output end of the motor is fixedly connected with a gear through a coupler, a circular through groove is formed in the right side of the main body and communicates with the containing groove, and a clamping assembly is arranged in the circular through groove. According to the plunger clamping device, the three synchronously-adjusted threaded rods drive the clamping blocks to conduct multi-point clamping on the plunger, in combination with a limiting structure of the arc-shaped rod limiting frame, stable fixing can be achieved, the clamping blocks can be prevented from deviating, and the problem that the plunger rotates and shakes due to uneven stress of a traditional clamping device is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to plunger production technical field, concretely is a polishing device for plunger production. BACKGROUND

[0002] Plunger pump is an important device of hydraulic system. It relies on plunger reciprocating motion in cylinder, makes the volume of sealed working cavity change to realize oil absorption, oil pressing. Plunger pump has high rated pressure, compact structure, high efficiency and easy flow regulation and other advantages, plunger pump is widely used in high pressure, large flow and flow needs to be adjusted occasions, such as hydraulic machine, engineering machinery and ship,

[0003] The polishing of plunger is necessary in production steps, but the plunger polishing equipment currently used may appear the problem of plunger rotation shaking due to uneven stress, once the above situation appears in the polishing process of plunger, the size of plunger will change seriously to cause the situation of unable to use. SUMMARY

[0004] The utility model discloses a polishing device for plunger production to solve the problems in the above background.

[0005] To solve the above technical problem, the utility model is realized through the following technical scheme:

[0006] The utility model discloses a polishing device for plunger production, including the main part, the main part left side is provided with the plunger, the plunger left side is provided with the fixed plate, the main part inside transverse is provided with the cylinder rod, the cylinder rod outer surface is equipped with the two -way thread groove, the main part inside is equipped with the placing groove, and the placing groove is installed with motor in the inside, the motor output passes through the connecting rod fixed connection has the gear, the main part right side is equipped with the round through slot, and the round through slot is linked together with the placing groove, and the round through slot is provided with clamping assembly in, and the clamping assembly is provided with the clamping block, and the clamping block is provided with the fixed rod, and the fixed rod is provided with the arc rod, and the arc rod is provided with the sliding rod, and the arc rod is provided with the limit frame, and the sliding rod can slide in the limit frame, and the limit frame is provided with the locating piece, and the locating piece is fixed on the sliding rod, and the locating piece is limited in the limit frame.

[0007] The clamping assembly includes a gear ring, and the gear ring is intermeshed with the gear, the gear ring is rotatably connected with a threaded rod, one end of the threaded rod away from the gear ring is rotatably connected with a connecting ring, the connecting ring away from the threaded rod is fixedly connected with a clamping block, the inner surface of the clamping block and the right outer surface of the plunger are in contact with each other, the clamping block as a whole is arc-shaped, the outer surface of the clamping block is fixedly connected with a fixed rod at both ends, the outer surface of the fixed rod is rotatably connected with an arc-shaped rod, one end of the arc-shaped rod away from the fixed rod is fixedly connected with a sliding rod, the front and back surfaces of the arc-shaped rod are in contact with a limit frame, the sliding rod can slide in the limit frame, one side of the limit frame away from the arc-shaped rod is in contact with a locating piece, the locating piece is fixed on the sliding rod, and the locating piece limits the sliding rod in the limit frame.

[0008] Further, the square block is fixedly connected to the right center of the fixed plate, the plunger is contacted with the top rod on the left side, the square slot is formed on the left side of the top rod, and the square block is matched with the square slot in shape and size.

[0009] Further, the main body comprises a concave plate, the polished plate is placed on the top of the concave plate, the polished plate is contacted with the outer surface of the plunger, the straight angle plates are fixedly connected to the front and back surfaces of the concave plate, the outer surface of the polished plate is contacted with the inner surface of the straight angle plate, the long sliding grooves are formed on the front and back surfaces of the main body, the sliding blocks are slidably arranged in the long sliding grooves, the threaded round block is fixedly connected to the side of the sliding block away from the center of the main body, the threaded block is threadedly connected in the threaded round block, the friction block is fixedly connected to the end of the threaded block away from the sliding block, and the push rod is fixedly connected between the sliding block and the fixed plate.

[0010] Further, the cavity is arranged in the main body below the polished plate, and the control assembly is arranged in the cavity.

[0011] The utility model has the advantages of the following beneficial effects:

[0012] (1) the utility model discloses a three synchronous adjusting threaded rod drives the clamping block to carry out multi -point clamping to plunger, and combines the limiting structure of arc -shaped rod limiting frame, can realize stable fixation, can prevent the deviation of clamping block again, solves the problem of plunger rotation shaking of traditional clamping device because of uneven stress.

[0013] (2) the utility model discloses a two -way threaded cylindrical rod bump linkage structure, and the lifting height of polished plate can be adjusted simultaneously through rotating operation, ensures that the diameter changes still can keep effective contact in the polishing process of plunger, avoids the polishing failure because of abrasion.

[0014] (3) the utility model discloses a fixed plate, and the top rod of left -hand fixed plate and sliding block friction block locking device form double -limiting, effectively suppresses the swing of the left and right ends of plunger, and improves the uniformity of polishing surface.

[0015] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described in the following embodiment are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

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

[0018] Figure 2 It is a structural schematic diagram of the main body of the present application;

[0019] Figure 3 It is a structural schematic diagram of the clamping assembly of the present application;

[0020] Figure 4 It is a structural schematic diagram of the present application Figure 3 It is a partial enlarged structural schematic diagram of A of the present application;

[0021] Figure 5 It is a structural schematic diagram of the main body of the present application;

[0022] Figure 6 It is a structural schematic diagram of the polishing plate of the present application;

[0023] Figure 7 It is a structural schematic diagram of the control assembly of the present application;

[0024] Figure 8 It is a structural schematic diagram of the push rod of the present application;

[0025] Figure 9 It is a structural schematic diagram of the present application Figure 8 It is a partial enlarged structural schematic diagram of B of the present application.

[0026] In the drawings, the component list represented by each number is as follows:

[0027] In the drawings, 1, main body; 11, concave plate; 12, polishing plate; 13, right-angle plate; 14, control assembly; 141, protruding block; 142, supporting rod; 143, connecting short rod; 144, sliding clamping block; 145, convex plate; 15, push rod; 16, sliding block; 17, threaded round block; 18, threaded block; 19, friction block; 2, plunger; 3, fixed plate; 31, square block; 32, jacking rod; 4, cylindrical rod; 5, motor; 6, gear; 7, clamping assembly; 71, gear ring; 72, threaded rod; 73, connecting ring; 74, clamping block; 75, fixed rod; 76, arc-shaped rod; 77, sliding rod; 78, limiting frame; 79, limiting sheet. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0029] Please refer to Figure 1 - Figure 9 As shown in the utility model discloses a kind of polishing device for plunger production, including main body 1, plunger 2 is arranged on the left side of main body 1, fixed plate 3 is arranged on the left side of plunger 2, cylindrical rod 4 is horizontally arranged in main body 1, and two-way thread groove is opened in the outer surface of cylindrical rod 4, and placing groove is opened in main body 1, and motor 5 is installed in the inside of placing groove, gear 6 is fixedly connected with the output end of motor 5 by coupling, and circular through slot is opened in the right side of main body 1, and the circular through slot is communicated with placing groove, and clamping assembly 7 is arranged in the circular through slot;

[0030] Clamping assembly 7 includes gear ring 71, and gear ring 71 is engaged with gear 6, threaded rod 72 is rotatably connected in gear ring 71, one end of threaded rod 72 away from gear ring 71 is rotatably connected with connecting ring 73, connecting ring 73 is fixedly connected with clamping block 74 on the end away from threaded rod 72, and the inner surface of clamping block 74 is in contact with the outer surface of the right side of plunger 2, and clamping block 74 is arc-shaped as a whole, and fixed rod 75 is fixedly connected with the outer surface of both ends of clamping block 74, arc-shaped rod 76 is rotatably connected with the outer surface of fixed rod 75, sliding rod 77 is fixedly connected with the end of arc-shaped rod 76 away from fixed rod 75, and limit frame 78 is in contact with the front and back of arc-shaped rod 76, and sliding rod 77 can slide in limit frame 78, and positioning sheet 79 is in contact with the side of limit frame 78 away from arc-shaped rod 76, positioning sheet 79 is fixed on sliding rod 77, and positioning sheet 79 limits sliding rod 77 in limit frame 78.

[0031] Fixed plate 3 is fixedly connected with square block 31 at the center of the right side, plunger 2 is in contact with ejector rod 32 on the left side, square slot is opened on the left side of ejector rod 32, and the size and shape of square slot are matched with square block 31.

[0032] The body 1 includes a concave plate 11, the polished plate 12 is placed on the top of the concave plate 11, the polished plate 12 is in contact with the outer surface of the plunger 2, the front and back of the concave plate 11 are fixedly connected with the right-angle plates 13, the inner surface of the right-angle plates 13 is in contact with the outer surface of the polished plate 12, the front and back of the inside of the body 1 are provided with long sliding grooves, and the long sliding grooves are slidably connected with the sliding blocks 16, the side, away from the center of the body 1, of the sliding block 16 is fixedly connected with the threaded round block 17, the threaded round block 17 is screw-connected with the threaded block 18, the end, away from the sliding block 16, of the threaded block 18 is fixedly connected with the friction block 19, and the sliding block 16 and the fixed plate 3 are fixedly connected with the push rod 15.

[0033] The cavity is arranged below the polished plate 12 and in the inside of the body 1, and the control assembly 14 is arranged in the cavity, the control assembly 14 includes the convex blocks 141 slidably connected with the bottom of the cavity, the front and back of the convex blocks 141 are rotatably connected with the supporting rods 142 through the connecting shafts, the end, away from the convex blocks 141, of the supporting rods 142 is rotatably connected with the short rods 143, the outer surface of the center of the short rods 143 is fixedly installed with the sliding clamping blocks 144, the sliding clamping blocks 144 are fixedly connected with the convex plates 145, the top of the convex plates 145 is fixedly connected with the bottom of the concave plate 11, the bottom of the concave plate 11 penetrates through the top of the body 1 and extends into the cavity and is slidably connected in the cavity, the inside of the two convex blocks 141 is respectively provided with a forward thread and a reverse thread, the left side of the cylindrical rod 4 is rotatably connected with the left side of the inner wall of the cavity and penetrates through the convex blocks 141, and the convex blocks 141 are screw-connected on the bidirectional threads on the outer surface of the cylindrical rod 4.

[0034] In use, the plunger 2 to be processed is placed on the polishing plate 12, the cylindrical end of the plunger 2 is inserted into the circular through slot in the main body 1, then the worker manually rotates the threaded rods 72, the threaded rods 72 drive the clamping blocks 74 to move away from one end of the gear ring 71, the three threaded rods 72 are operated in the above manner until the clamping blocks 74 complete the clamping work on the plunger 2, when the clamping blocks 74 move, the arc-shaped rods 76 rotating on the fixed rods 75 are driven to move, the arc-shaped rods 76 drive the sliding rods 77 and the positioning plates 79 to slide in the limiting frames 78, the limiting frames 78 can prevent the threaded rods 72 from driving the clamping blocks 74 to rotate when the threaded rods 72 rotate, so that the position of the clamping blocks 74 is prevented from deviating, after the plunger 2 is fixed by the clamping assembly 7, the fixed plate 3 on the left is pushed to the left, the fixed plate 3 drives the jacks 32 and the push rods 15 to move to the right at the same time, when the right end of the jacks 32 abuts against the left side of the plunger 2, the jacks 32 stop, since the push rods 15 drive the sliding blocks 16 to move in the moving process, the rotating friction blocks 19 and the threaded blocks 18 fixed together move towards the inside of the threaded circular blocks 17, until the friction blocks 19 are clamped on the outside of the main body 1, the function of fixing the push rods 15 is achieved, at the same time, the push rods 15 can abut against the left side of the plunger 2, so that the left end of the plunger 2 is prevented from shaking when the plunger 2 rotates for polishing, at this time, the motor 5 in the main body 1 is started, the motor 5 drives the gear 6 to rotate through the shaft coupling, the gear ring 71 is driven to rotate under the action of the rotating gear 6, so that the plunger 2 is driven to rotate as a whole, when the plunger 2 rotates, the polishing plate 12 on the bottom of the plunger 2 abuts against the surface of the polishing plate 12, so that the polishing effect is achieved, the worker can rotate the cylindrical rod 4, the double-directional threads on the surface of the cylindrical rod 4 drive the two protrusions 141 to move away from each other at the same time when the cylindrical rod 4 rotates, since the sliding clamping blocks 144 are fixedly connected with the convex plates 145, when the protrusions 141 move, the supporting rods 142 drive the sliding clamping blocks 144, the convex plates 145 and the concave plate 11 to move upwards, the polishing plate 12 is lifted by the concave plate 11, so that the diameter of the plunger 2 is prevented from being reduced due to polishing, and the situation that the polishing plate 12 cannot be polished is avoided, when the polishing plate 12 needs to be replaced, the fixed plate 3 is moved to the left to the limit position, then the polishing plate 12 limited in the concave plate 11 and the right-angle plate 13 is pulled out, so that the polishing plate 12 can be replaced.

[0035] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, nor limit the invention to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A polishing device for the production of plungers, comprising a main body (1), characterized in that: The left side of the main body (1) is provided with a plunger (2), the left side of the plunger (2) is provided with a fixed plate (3), the inside of the main body (1) is transversely provided with a cylindrical rod (4), the outer surface of the cylindrical rod (4) is provided with a double-thread groove, the inside of the main body (1) is provided with a placing groove, and the inside of the placing groove is provided with a motor (5), the output end of the motor (5) is fixedly connected with a gear (6) through a shaft coupling, the right side of the main body (1) is provided with a circular through groove, and the circular through groove is communicated with the placing groove, and the circular through groove is provided with a clamping assembly (7). The clamping assembly (7) comprises a gear ring (71), and the gear ring (71) is engaged with the gear (6), the inside of the gear ring (71) is rotatably connected with a threaded rod (72), one end of the threaded rod (72) away from the gear ring (71) is rotatably connected with a connecting ring (73), one end of the connecting ring (73) away from the threaded rod (72) is fixedly connected with a clamping block (74), and the inner surface of the clamping block (74) is in contact with the outer surface of the right side of the plunger (2), and the clamping block (74) is arc-shaped as a whole, the outer surface of the clamping block (74) is fixedly connected with a fixed rod (75) at both ends, the outer surface of the fixed rod (75) is rotatably connected with an arc-shaped rod (76), one end of the arc-shaped rod (76) away from the fixed rod (75) is fixedly connected with a sliding rod (77), the front and back surfaces of the arc-shaped rod (76) are in contact with a limiting frame (78), and the sliding rod (77) can slide in the limiting frame (78), one side of the limiting frame (78) away from the arc-shaped rod (76) is in contact with a positioning piece (79), the positioning piece (79) is fixed on the sliding rod (77), and the positioning piece (79) limits the sliding rod (77) in the limiting frame (78).

2. The polishing device for plunger production according to claim 1, characterized in that: The right side of the fixed plate (3) is fixedly connected with a square block (31), the left side of the plunger (2) is in contact with a jacking rod (32), the left side of the jacking rod (32) is provided with a square groove, and the size and shape of the square groove are matched with the square block (31).

3. The polishing device for plunger production according to claim 2, characterized in that: The main body (1) comprises a concave plate (11), the top of the concave plate (11) is provided with a polishing plate (12), the top of the polishing plate (12) is in contact with the outer surface of the plunger (2), the front and back surfaces of the concave plate (11) are fixedly connected with right-angle plates (13), and the inner surfaces of the right-angle plates (13) are in contact with the outer surface of the polishing plate (12).

4. The polishing device for plunger production according to claim 3, characterized in that: The front and back surfaces of the inside of the main body (1) are provided with long sliding grooves, and sliding blocks (16) slide in the long sliding grooves, one side of the sliding block (16) away from the center of the main body (1) is fixedly connected with a threaded circular block (17), the threaded circular block (17) is screw-connected with a threaded block (18), one end of the threaded block (18) away from the sliding block (16) is fixedly connected with a friction block (19), and the sliding block (16) and the fixed plate (3) are fixedly connected with a push rod (15).

5. A polishing device for producing a plunger according to claim 4, characterized in that: The polishing plate (12) is below the cavity in the body (1), and the control assembly (14) is arranged in the cavity, the control assembly (14) comprises the protruding block (141) slidably connected to the bottom of the cavity, the protruding block (141) is rotatably connected with the supporting rod (142) through the connecting shaft on the front surface and the back surface, the supporting rod (142) is rotatably connected with the short rod (143) at the end away from the protruding block (141), the sliding clamping block (144) is fixedly installed on the outer surface of the center of the connecting short rod (143), the protruding plate (145) is fixedly connected in the sliding clamping block (144), the top of the protruding plate (145) is fixedly connected with the bottom of the concave plate (11), and the bottom of the concave plate (11) penetrates through the top of the body (1) and extends into the cavity and is slidably connected in the cavity.

6. A polishing device for producing a plunger according to claim 5, characterized in that: The protruding block (141) is rotatably connected with the cavity inner wall left side through the protruding block (141) penetrating through the cylindrical rod (4) left side, and the protruding block (141) is threadedly connected on the double thread on the outer surface of the cylindrical rod (4).

Images