Semi-rotary pump rotor finish machining device

Abstract

The utility model relates to the technical field of rotor machining, in particular to a semi-rotation type pump rotor finish machining device which comprises a lathe body, a semi-rotation driving mechanism is installed on the lathe body and comprises a rotating disc, the output end of the lathe body is detachably connected with the rotating disc, one side of the rotating disc is fixedly connected with a cam, and the other side of the rotating disc is fixedly connected with a motor. A supporting plate is installed on the lathe body, a first gear is rotationally connected to one side of the supporting plate, a roller is rotationally connected to the edge of the end face of the first gear and abuts against the edge of the cam, a second gear is rotationally connected to the axis of the cam, and the second gear is meshed with the first gear. A connecting sleeve is installed at one end of the second gear, and a reset mechanism is connected between one side of the first gear and the lathe body. And the rotor can be well clamped and can continuously rotate in a reciprocating manner, so that the single side of the rotor can be quickly cut and machined, and the outer side of the rotor is smoother.

Description

Technical Field

[0001] The utility model relates to a device for fine machining of a rotor, in particular to a device for fine machining of a semi-rotary pump rotor, belonging to the technical field of rotor machining. Background Technique

[0002] A rotor refers to a rotating body supported by bearings. In a pump, the rotation of the rotor realizes the liquid transportation work. During the production and processing of the pump rotor, it is necessary to process the outside of the rotating shaft through a machine tool to make the outside of the rotor shaft smooth.

[0003] At present, pump rotors are processed by milling machines or planers, which cannot meet the surface treatment requirements with relatively high precision. Since lathes have relatively high machining precision, they can meet the surface treatment precision of pump rotors. However, since the outer surface of the pump rotor is not circular, and lathes can only machine parts with a circular surface, a fixture that can make the pump rotor rotate semi-rotationally on the lathe is required, so as to be able to perform reciprocating rotary machining on the outer part surface of the pump rotor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for fine machining of a semi-rotary pump rotor in order to solve the above problems, which can clamp the rotor well, make the rotor rotate continuously and reciprocally, perform rapid cutting machining on one side of the rotor, and make the outer side of the rotor smoother.

[0005] The utility model realizes the above purpose through the following technical solutions. A device for fine machining of a semi-rotary pump rotor includes a lathe body. A semi-rotation driving mechanism is installed on the lathe body. The semi-rotation driving mechanism includes a turntable. The output end of the lathe body is detachably connected with the turntable. A cam is fixedly connected to one side of the turntable. A support plate is installed on the lathe body. A first gear is rotatably connected to one side of the support plate. A roller is rotatably connected to the edge of the end face of the first gear. The roller abuts against the edge of the cam. A second gear is rotatably connected to the center of the cam. The second gear meshes with the first gear. A connecting sleeve is installed at one end of the second gear. A reset mechanism is connected between one side of the first gear and the lathe body.

[0006] Preferably, the reset mechanism includes a transmission rod. One side of the first gear is detachably connected with the transmission rod through a bolt. The other end of the transmission rod is connected with a reset spring. The bottom of the reset spring is connected with the bottom of the lathe body through a fixed rod.

[0007] Preferably, rotating blocks are respectively installed at both ends of the reset spring. The two rotating blocks are respectively rotatably connected with the transmission rod and the fixed rod.

[0008] Preferably, the diameter of the first gear is smaller than that of the second gear, the length of the cam is equal to the radius of the first gear, and the side wall of the cam is an arc structure.

[0009] Preferably, one side of the connecting sleeve is vertically connected with a screw rod, and one end of the screw rod is threadedly connected with the side wall of the connecting sleeve.

[0010] Preferably, a pressing plate is slidably connected inside the connecting sleeve, and the pressing plate is located at one end of the screw rod.

[0011] Preferably, the pressing plate is an arc structure, and one side of the pressing plate is rotatably connected with the screw rod.

[0012] Preferably, a connecting block is installed at one end of the connecting sleeve, a connecting groove is provided at the center of the cam, the connecting block is slidably connected inside the connecting groove, and both the connecting groove and the connecting block are hexagonal structures.

[0013] Preferably, a convex block is installed inside the connecting block, the convex block is slidably connected inside the connecting block through a compression spring, one end of the convex block extends to the outside of the connecting block and abuts against the inside of the connecting groove, and the top of the connecting block is a hemispherical structure.

[0014] The beneficial effects of the present utility model are as follows: Through the installation of the support plate, it is beneficial to rotatably connect the first gear. Through the installation of the turntable, it is beneficial to connect the cam. After the second gear is rotatably connected to the center of the cam, the second gear meshes with the first gear. Through the installation of the connecting sleeve, the workpiece is connected. When the lathe body works, the lathe body drives the turntable and the cam to continuously rotate. The cam repeatedly abuts against the roller on one side of the first gear, causing the first gear to rotate reciprocally under the cooperation of the return spring. The first gear drives the second gear and the connecting sleeve to rotate reciprocally, realizing the reciprocating rotation of the workpiece for cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the connection structure between the second gear and the first gear of the present utility model;

[0017] Figure 3 is a schematic diagram of the connection structure between the second gear and the cam of the present utility model;

[0018] Figure 4 is a schematic diagram of the connection structure between the cam and the roller of the present utility model;

[0019] Figure 5 is a schematic diagram of the connection structure between the connecting sleeve and the second gear of the present utility model;

[0020] Figure 6Schematic diagram of the connection structure between the pressing plate and the connecting sleeve of the present utility model;

[0021] Figure 7 Schematic diagram of the connection structure between the compression spring and the convex block of the present utility model.

[0022] In the figure: 1, lathe body; 2, semi-rotary drive mechanism; 201, turntable; 202, cam; 203, connecting sleeve; 204, support plate; 205, first gear; 206, second gear; 207, screw; 208, roller; 209, connecting block; 210, convex block; 211, connecting groove; 212, pressing plate; 213, compression spring; 3, reset mechanism; 301, reset spring; 302, fixed rod; 303, transmission rod; 304, rotating block; 305, bolt. Specific embodiments

[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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figure 1-7 As shown, a semi-rotary pump rotor finishing device includes a lathe body 1, a semi-rotary drive mechanism 2 is installed on the lathe body 1, the semi-rotary drive mechanism 2 includes a turntable 201, the output end of the lathe body 1 is detachably connected to the turntable 201, a cam 202 is fixedly connected to one side of the turntable 201, a support plate 204 is installed on the lathe body 1, a first gear 205 is rotatably connected to one side of the support plate 204, a roller 208 is rotatably connected to the edge of the end face of the first gear 205, the roller 208 abuts against the edge of the cam 202, a second gear 206 is rotatably connected to the axis of the cam 202, the second gear 206 meshes with the first gear 205, a connecting sleeve 203 is installed at one end of the second gear 206, and a reset mechanism 3 is connected between one side of the first gear 205 and the lathe body 1.

[0025] As a technical optimization solution of the present utility model, the reset mechanism 3 includes a transmission rod 303. One side of the first gear 205 is detachably connected to the transmission rod 303 through a bolt 305. The other end of the transmission rod 303 is connected to a reset spring 301. The bottom of the reset spring 301 is connected to the bottom of the lathe body 1 through a fixing rod 302. By installing the transmission rod 303, it is beneficial to connect the reset spring 301. Through the connection between the fixing rod 302 and the reset spring 301, the transmission rod 303 can be reset in time after following the rotation of the first gear 205, realizing the reciprocating rotation of the first gear 205.

[0026] As a technical optimization solution of the present utility model, rotating blocks 304 are respectively installed at both ends of the reset spring 301. The two rotating blocks 304 are respectively rotatably connected to the transmission rod 303 and the fixing rod 302. By installing the rotating blocks 304, both ends of the reset can rotate, enabling better driving and control of the reset spring 301.

[0027] As a technical optimization solution of the present utility model, the diameter of the first gear 205 is smaller than that of the second gear 206. The length of the cam 202 is equal to the radius of the first gear 205. The side wall of the cam 202 is an arc structure, which is beneficial for the cam 202 to smoothly contact the roller 208 and increase the speed ratio, enabling the first gear 205 to quickly drive the second gear 206 to rotate and realizing the cutting of the workpiece.

[0028] As a technical optimization solution of the present utility model, a screw rod 207 is vertically connected to one side of the connecting sleeve 203. One end of the screw rod 207 is threadedly connected to the side wall of the connecting sleeve 203. By installing the screw rod 207, after the screw rod 207 rotates, it contacts the workpiece shaft under the action of the thread, making the connection between the workpiece and the connecting sleeve 203 firm.

[0029] As a technical optimization solution of the present utility model, a pressing plate 212 is slidably connected inside the connecting sleeve 203. The pressing plate 212 is located at one end of the screw rod 207. By installing the pressing plate 212, the screw rod 207 can drive the pressing plate 212, enabling the pressing plate 212 to slide and clamp the workpiece, reducing wear on the workpiece.

[0030] As a technical optimization solution of the present utility model, the pressing plate 212 is an arc structure. One side of the pressing plate 212 is rotatably connected to the screw rod 207, which is beneficial for the screw rod 207 to drive and control the pressing plate 212, making the clamping of the workpiece firm.

[0031] As a technical optimization solution of the present utility model, a connection block 209 is installed at one end of the connection sleeve 203. A connection groove 211 is provided at the axis of the cam 202. The connection block 209 is slidably connected to the inside of the connection groove 211. Both the connection groove 211 and the connection block 209 are hexagonal structures, which facilitates the disassembly, assembly and maintenance of the connection sleeve 203 and the second gear 206, and the installation of connection sleeves 203 of different sizes.

[0032] As a technical optimization solution of the present utility model, a convex block 210 is installed inside the connection block 209. The convex block 210 is slidably connected to the inside of the connection block 209 through a compression spring 213. One end of the convex block 210 extends to the outside of the connection block 209 and abuts against the inside of the connection groove 211. The top of the connection block 209 is a hemispherical structure. With the cooperation of the compression spring 213, the convex block 210 has elasticity. After the connection block 209 is engaged with the inside of the connection groove 211, the convex block 210 tightly abuts against the inside of the connection groove 211, making the connection stable.

[0033] When the present utility model is in use, first insert the workpiece into the inside of one end of the connection sleeve 203, and by rotating the screw 207, make the pressing plate 212 firmly clamp the workpiece. Then connect the connection sleeve 203 with the second gear 206. Then rotatably connect one end of the second gear 206 with the cam 202, and make the second gear 206 mesh with the first gear 205. Under the pulling of the return spring 301, make the roller 208 on the first gear 205 always located on one side of the cam 202. At the same time, the lathe body 1 abuts against the other end of the workpiece, and makes the cutting tool abut against the side wall of the workpiece, facilitating subsequent cutting work. Through the operation of the lathe body 1, the lathe body 1 drives the turntable 201 and the cam 202 to rotate synchronously. After the cam 202 rotates to a certain position, it abuts against the roller 208, making the roller 208 drive the first gear 205 to rotate. The first gear 205 drives the second gear 206 and the connection sleeve 203 to rotate, realizing the rotational cutting of the workpiece. After the first gear 205 rotates a certain angle by getting rid of the pulling force of the return spring 301, the cam 202 is separated from the roller 208, making the first gear 205 reset under the pulling of the return spring 301, facilitating the next rotation. By analogy, the first gear 205 rotates reciprocally, making the workpiece rotate reciprocally for cutting work.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0035] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A semi-rotary pump rotor finishing device, comprising a lathe body (1), characterized in that: A semi-rotational driving mechanism (2) is installed on the lathe body (1), and the semi-rotational driving mechanism (2) comprises a rotating disk (201). The output end of the lathe body (1) is detachably connected to the rotating disk (201), and one side of the rotating disk (201) is fixedly connected to a cam (202). A support plate (204) is installed on the lathe body (1), and one side of the support plate (204) is rotatably connected to a first gear (205). The edge of the end face of the first gear (205) is rotatably connected to a roller (208), and the roller (208) contacts the edge of the cam (202). The axis of the cam (202) is rotatably connected to a second gear (206), and the second gear (206) is meshed with the first gear (205). A connecting sleeve (203) is installed at one end of the second gear (206), and a reset mechanism (3) is connected between one side of the first gear (205) and the lathe body (1).

2. A semi-rotary pump rotor finishing device according to claim 1, characterized in that: The reset mechanism (3) comprises a transmission rod (303), one side of the first gear (205) is detachably connected to the transmission rod (303) via a bolt (305), the other end of the transmission rod (303) is connected to a reset spring (301), and the bottom of the reset spring (301) is connected to the bottom of the lathe body (1) via a fixing rod (302).

3. A semi-rotary pump rotor finishing device according to claim 2, characterized in that: Rotating blocks (304) are respectively installed at both ends of the return spring (301), and the two rotating blocks (304) are respectively rotatably connected to the transmission rod (303) and the fixing rod (302).

4. A semi-rotary pump rotor finishing device according to claim 1, characterized in that: The diameter of the first gear (205) is smaller than the diameter of the second gear (206), the length of the cam (202) is equal to the radius of the first gear (205), and the side wall of the cam (202) is an arc-shaped structure.

5. A semi-rotary pump rotor finishing device according to claim 1, characterized in that: A screw rod (207) is vertically connected to one side of the connecting sleeve (203), and one end of the screw rod (207) is threadedly connected to the side wall of the connecting sleeve (203).

6. A semi-rotary pump rotor finishing device according to claim 5, characterized in that: A pressing plate (212) is slidably connected to the inner side of the connecting sleeve (203), and the pressing plate (212) is located at one end of the screw rod (207).

7. A semi-rotary pump rotor finishing device according to claim 6, characterized in that: The pressing plate (212) is an arc-shaped structure, and one side of the pressing plate (212) is rotatably connected to the screw rod (207).

8. A semi-rotary pump rotor finishing device according to claim 7, characterized in that: A connecting block (209) is installed at one end of the connecting sleeve (203), a connecting groove (211) is provided at the axis of the cam (202), the connecting block (209) is slidably connected to the inside of the connecting groove (211), and the connecting groove (211) and the connecting block (209) are both hexagonal structures.

9. A semi-rotary pump rotor finishing device according to claim 8, characterized in that: A protrusion (210) is installed inside the connection block (209); the protrusion (210) is slidably connected to the inside of the connection block (209) via a compression spring (213); one end of the protrusion (210) extends to the outside of the connection block (209) and contacts the inside of the connection groove (211); and the top of the connection block (209) is a hemispherical structure.

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