A kind of frock for electroplating pretreatment of pump barrel inner wall of oil well pump

Abstract

The utility model discloses a kind of tool for oil pump pump cylinder inner wall electroplating pretreatment, including base, limit post is equipped on base, first support, second support and third support;Rotary head is rotatably connected to the top of limit post, the top of first support and second support is respectively connected with first chuck and second chuck, rotary head is rotatably connected to the top of third support, and the side of third chuck is equipped with the drive mechanism of driving third chuck;Honing shaft is penetrated in the inner hole of first chuck, second chuck and third chuck, one end of honing shaft is movably connected with rotary head, the other end of honing shaft is fixed by third chuck clamping, and honing piece is slidably connected on the wall of honing shaft. Through mechanized honing operation mode, efficiency is improved, manual labor intensity is reduced, and three sets of chuck and rotary head can be coaxially positioned to pump cylinder, honing shaft, to improve honing operation more accurate and reliable.

Description

Technical Field

[0001] This utility model relates to the field of oil pump processing, specifically a tooling for electroplating pretreatment of the inner wall of an oil pump barrel. Background Technology

[0002] After the pump barrel is rough machined, in order to ensure the smooth reciprocating motion of the internal piston components, the inner cavity needs to be honed before being smoothed. After honing, electroplating is performed to make the inside of the pump barrel smoother. Currently, there are no special tools for honing the inside of the pump barrel. Generally, operators need to use a hand drill to drive the honing strip to hone the inside, and constantly use calipers to check the dimensions of each part. This method makes it difficult to ensure that the honing strip rotates along the pump barrel axis during honing, which makes it difficult to ensure that the entire pump barrel cavity is flat and smooth. In addition, the manual operation method has a long working cycle and a high rework rate. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a tooling for electroplating pretreatment of the inner wall of an oil pump barrel.

[0004] The technical solution of this utility model is: a tooling for electroplating pretreatment of the inner wall of an oil pump barrel, including a base, on which a limiting post, a first support, a second support and a third support are arranged sequentially from front to back; The top of the limiting post is rotatably connected to a rotating head, the tops of the first support and the second support are respectively fixedly connected to a first chuck and a second chuck, the top of the third support is rotatably connected to a third chuck, and a driving mechanism for driving the third chuck to rotate is provided on one side of the third chuck. The rotating head, the first chuck, the second chuck, and the third chuck are arranged coaxially. A honing shaft is provided through the inner hole of the first chuck, the second chuck, and the third chuck. One end of the honing shaft is movably connected to the rotating head, and the other end of the honing shaft is clamped and fixed by the third chuck. A honing disc is slidably connected to the wall of the honing shaft in the radial direction.

[0005] Preferably, the part of the rotating head connected to the honing shaft has a conical structure, and the end of the honing shaft is provided with a conical limiting hole adapted to the conical structure.

[0006] Preferably, the honing shaft is a tubular structure, and a through groove is provided radially on the tube wall structure. The honing disc is adapted to the through groove and slides through the through groove. The end of the honing disc located in the cavity of the tubular structure is provided with a limiting piece extending outward.

[0007] Preferably, the first chuck, the second chuck, and the third chuck are all three-jaw self-centering chucks.

[0008] Preferably, the drive mechanism includes a motor fixed on the base, a first pulley is provided on the output shaft of the motor, and a second pulley is coaxially arranged on one side of the third chuck. The first pulley and the second pulley are connected by a belt.

[0009] Preferably, the diameter of the first pulley is smaller than the diameter of the second pulley.

[0010] Compared with the prior art, this utility model has the following advantages: This invention uses a conical limiting hole at the end of the honing shaft to connect with a rotating head for axis positioning. Then, a first chuck and a second chuck fix the pump cylinder, while a third chuck fixes the honing shaft. A drive mechanism rotates the third chuck, which in turn rotates the honing shaft and honing discs, enabling honing operations inside the pump cylinder. This achieves a mechanized honing process, improving efficiency and reducing manual labor intensity. Furthermore, the three sets of chucks and the rotating head allow for coaxial positioning of the pump cylinder and honing shaft, resulting in more precise and reliable honing operations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the assembly of the third chuck rotation and drive mechanism; Figure 3 This is a schematic diagram of the assembly of the limiting post and the rotating head; Figure 4 This is a schematic diagram of the assembly of the honing shaft and the honing disc; In the diagram: 1. Base, 2. Limiting post, 3. Rotating head, 4. First chuck, 5. Second chuck, 6. Third chuck, 7. First support, 8. Second support, 9. Third support, 10. Drive mechanism, 11. Motor, 12. First pulley, 13. Second pulley, 14. Belt, 15. Honing shaft, 16. Honing disc, 17. Limiting plate, 18. Conical limiting hole. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0013] like Figures 1 to 4 A tooling for electroplating pretreatment of the inner wall of an oil pump barrel, the main body of which is a base 1, and the base 1 is provided with a limiting post 2, a first support 7, a second support 8 and a third support 9 from front to back.

[0014] The top of the limiting post 2 is rotatably connected to a rotating head 3. The tops of the first support 7 and the second support 8 are respectively fixedly connected to a first chuck 4 and a second chuck 5. The top of the third support 9 is rotatably connected to a third chuck 6. A drive mechanism 10 for driving the third chuck 6 to rotate is provided on one side of the third chuck 6.

[0015] The rotating head 3, the first chuck 4, the second chuck 5, and the third chuck 6 are arranged coaxially. The first chuck 4, the second chuck 5, and the third chuck 6 are all three-jaw self-centering chucks.

[0016] A honing shaft 15 is provided through the inner hole of the first chuck 4, the second chuck 5 and the third chuck 6. One end of the honing shaft 15 is clamped and fixed by the third chuck 6, and the other end of the honing shaft 15 is movably connected to the rotating head 3.

[0017] The specific movable connection method between the honing shaft 15 and the rotating head 3 is as follows: the part connecting the rotating head 3 and the honing shaft 15 is designed with a conical structure, and the end of the honing shaft 15 is provided with a conical limiting hole 18 that is adapted to the conical structure, so that the connection and axis can be fixed by plugging.

[0018] A honing plate 16 is slidably connected to the wall of the honing shaft 15 in the radial direction. Specifically, the honing shaft 15 is a tubular structure, and a through groove is provided in the radial direction on the tube wall structure. The honing plate 16 is adapted to the through groove and slides through the through groove. The end of the honing plate 16 located in the tubular structure cavity is provided with a limiting piece 17 extending outward.

[0019] Working principle: In use, first, the honing shaft 15 is inserted through the pump barrel of the oil pump, and the honing plate 16 is inserted into the inside of the pump barrel. Then, the honing shaft 15 and the pump barrel are inserted together into the first chuck 4, the second chuck 5 and the third chuck 6. The conical limiting hole 18 at the end of the honing shaft 15 is connected to the rotating head 3 to fix the axis. Then, the pump barrel is fixed by the first chuck 4 and the second chuck 5, and the honing shaft 15 is fixed by the third chuck 6. The drive mechanism 10 drives the third chuck 6 to rotate, which in turn drives the honing shaft 15 and the honing disc 16 to rotate, thereby enabling honing operations inside the pump barrel. This achieves a mechanized honing operation, improving efficiency and reducing manual labor intensity. Furthermore, the three sets of chucks and the rotating head 3 enable coaxial positioning of the pump barrel and the honing shaft 15, making the honing operation more precise and reliable.

[0020] By means of sliding connection, when the honing shaft 15 is inserted into the pump barrel, the honing plate 16 can be retracted inward to facilitate insertion into the pump barrel. During honing operation, the rotation of the honing shaft 15 causes the honing plate 16 to unfold outward under the action of centrifugal force, thereby enabling operation inside the pump barrel. The honing disc 16 can be two symmetrically slidably connected to both sides of the honing shaft 15, and the symmetrical design makes the rotation smoother. Example 2

[0021] This embodiment is a further optimization based on the above embodiment, specifically: like Figure 1 and Figure 2 The drive mechanism 10 includes a motor 11 fixed on the base 1. A first pulley 12 is provided on the output shaft of the motor 11. A second pulley 13 is coaxially arranged on one side of the third chuck 6. The first pulley 12 and the second pulley 13 are connected by a belt 14.

[0022] When the motor 11 rotates, it drives the third chuck 6 to rotate through the transmission of the first pulley 12, the second pulley 13 and the belt 14, thereby driving the honing shaft 15 to rotate to perform honing work on the inner wall of the pump barrel.

[0023] In addition, as a further optimization of this embodiment, the diameter of the first pulley 12 is smaller than the diameter of the second pulley 13. This can reduce the rotational speed of the honing shaft 15 and increase the rotational torque of the honing shaft 15, thereby improving the smoothness and stability of honing.

[0024] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A tooling for electroplating pretreatment of the inner wall of an oil pump barrel, comprising a base, characterized in that: The base is provided with a limiting post, a first support, a second support and a third support in sequence from front to back; The top of the limiting post is rotatably connected to a rotating head, the tops of the first support and the second support are respectively fixedly connected to a first chuck and a second chuck, the top of the third support is rotatably connected to a third chuck, and a driving mechanism for driving the third chuck to rotate is provided on one side of the third chuck. The rotating head, the first chuck, the second chuck, and the third chuck are arranged coaxially. A honing shaft is provided through the inner hole of the first chuck, the second chuck, and the third chuck. One end of the honing shaft is movably connected to the rotating head, and the other end of the honing shaft is clamped and fixed by the third chuck. A honing disc is slidably connected radially to the wall of the honing shaft.

2. The tooling for pre-plating of the inner wall of an oil pump barrel according to claim 1, characterized in that: The part where the rotating head connects to the honing shaft has a conical structure, and the end of the honing shaft is provided with a conical limiting hole adapted to the conical structure.

3. The tooling for pre-plating of the inner wall of an oil pump barrel according to claim 1, characterized in that: The honing shaft is a tubular structure, and a through groove is provided radially on the tube wall. The honing disc is adapted to the through groove and slides through the through groove. The end of the honing disc located in the tubular cavity is provided with a limiting piece extending outward.

4. The tooling for pre-plating of the inner wall of an oil pump barrel according to claim 1, characterized in that: The first chuck, the second chuck, and the third chuck are all three-jaw self-centering chucks.

5. The tooling for pre-plating of the inner wall of an oil pump barrel according to claim 1, characterized in that: The drive mechanism includes a motor fixed on the base, a first pulley on the output shaft of the motor, and a second pulley coaxially arranged on one side of the third chuck. The first pulley and the second pulley are connected by a belt.

6. The tooling for pre-plating of the inner wall of an oil pump barrel according to claim 5, characterized in that: The diameter of the first pulley is smaller than the diameter of the second pulley.

Images