Impeller machining clamp

Abstract

The utility model is suitable for the field of machine tool clamps, and provides an impeller machining clamp which comprises a clamp body. A steel sleeve is installed in the clamp body, a guide sleeve is slidably sleeved with the steel sleeve, a first through hole is formed in the guide sleeve, a compression spring is installed between the guide sleeve and the clamp body, a sliding block check ring installed on the clamp body abuts against the side, away from the clamp body, of the steel sleeve, an inner hole is formed in the middle of the sliding block check ring, and a positioning disc is installed on the clamp body. A second through hole is formed in the middle of the positioning disc; a pressing plate is installed on the side, away from the clamp body, of the positioning disc. By means of the device, accurate positioning and stable clamping of the impeller can be achieved.

Description

Technical Field

[0001] The utility model is applicable to the field of machine tool fixtures and provides an impeller processing fixture. Background Art

[0002] The impeller is the core component of the engine and compressor, and its processing accuracy directly affects the thrust ratio and service life of the engine. The impeller is divided into a combined impeller and an integral impeller in terms of structure. The integral impeller is widely used because of its compact structure and high thrust ratio.

[0003] The integral impeller is generally ground and polished by a multi-axis machine tool. The primary problem to be solved in this process is the positioning and clamping of the integral impeller. The positioning and clamping of the impeller is currently basically achieved through the threaded holes on the end face. This method has the disadvantages of inaccurate positioning and unstable clamping. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of the utility model is to provide an impeller processing fixture, which aims to solve the problems raised in the background technology. The device includes a clamping body; a steel sleeve is installed inside the clamping body, and a guide sleeve is slidably sleeved inside the steel sleeve, a first through hole is provided inside the guide sleeve, a compression spring is installed between the guide sleeve and the clamping body, a slider retaining ring installed on the clamping body is abutted on the side of the steel sleeve away from the clamping body, an inner hole is provided in the middle of the slider retaining ring, a positioning plate is installed on the clamping body, and a second through hole is provided in the middle of the positioning plate; a pressure plate is installed on the side of the positioning plate away from the clamping body.

[0005] Furthermore, the steel sleeve and the clamp body are fixedly connected by two first hexagon socket head screws.

[0006] Furthermore, the slider retaining ring and the clamp body are fixedly connected by four cross recessed countersunk screws.

[0007] Furthermore, a cylindrical groove is provided at one end of the guide sleeve close to the clamp body, one end of the compression spring is installed in the cylindrical groove, and the other end abuts against the clamp body.

[0008] Furthermore, an abutment portion is provided on the guide sleeve, and one end of the guide sleeve away from the compression spring passes through the slider retaining ring, and the abutment portion abuts against the slider retaining ring.

[0009] Furthermore, three pressing plates are installed on the positioning plate.

[0010] Furthermore, the positioning plate is fixedly connected to the pressure plate via a hexagonal nut.

[0011] In summary, in actual use, the staff installs the impeller on the clamp body, and the fixed rod of the impeller is inserted into the first through hole of the guide sleeve. At this time, the cone will be against the guide sleeve, and the blades of the impeller extend into the second through hole of the positioning plate. At this time, the tail seat moves, and the top of the tail seat presses against the impeller disc, pushing the impeller in the direction of the compression spring. At this time, the guide sleeve slides in the steel sleeve, and the guide sleeve compresses the compression spring until the disc abuts against the positioning plate. At this time, the clamping is completed, and then the cutting equipment performs a cutting operation on the impeller disc. The device thus realizes precise positioning and stable clamping of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the device structure;

[0013] Figure 2 for Figure 1 A magnified view of the structure of part A;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the impeller;

[0015] Figure 4 is the cross-sectional view of the impeller;

[0016] In the figure: 01-impeller; 011-fixing rod; 0111-cone; 012-blade; 013-wheel disc; 031-guide rail; 032-tail stock; 033-top head; 1-clamping body; 2-positioning plate; 21-second hexagon socket head screw; 3-slider retaining ring; 31-cross slot countersunk screw; 4-steel sleeve; 41-first hexagon socket head screw; 5-guide sleeve; 51-abutment; 6-pressure plate; 61-hexagonal nut; 62-stud nut; 7-compression spring. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] See also Figure 1-4 The purpose of the utility model is to provide an impeller processing fixture, including a clamping body 1, which is fixedly connected to the rotating equipment of a machine tool. The clamping body 1 is used to clamp the impeller 01, and the machine tool can drive the clamping body 1 to rotate. At the same time, the machine tool is also provided with a matching tailstock 032 and a cutting device. A top head is fixedly connected to the tailstock 032, and the tailstock 032 can slide on the machine tool. Specifically, a guide rail 031 is provided on the machine tool, and the tailstock 032 can move along the guide rail 031. When it moves close to the clamping body 1, it can support the impeller 01 on the clamping body 1.

[0019] See also Figure 4 The impeller 01 includes a wheel disc 013, a blade 012 is fixedly connected to the wheel disc 013, a fixing rod 011 is fixedly connected to the top of the wheel disc 013, and a cone 0111 is provided between the fixing rod 011 and the wheel disc 013. The fixing rod 011, the cone 0111, the blade 012 and the wheel disc 013 of the impeller 01 are integrally formed. After integrally forming, there is excess material at the bottom of the wheel disc 013 of the impeller 01, which needs to be removed by lathing.

[0020] A steel sleeve 4 is sleeved inside the clamp body 1, and the steel sleeve 4 and the clamp body 1 are fixedly connected by two first hexagon socket head screws 41. A guide sleeve 5 is sleeved inside the steel sleeve 4, and the guide sleeve 5 and the steel sleeve 4 are slidably connected.

[0021] A first through hole is provided inside the guide sleeve 5, and the first through hole can be passed through by the fixing rod 011 of the impeller 01. A cylindrical groove is provided at one end of the guide sleeve 5 close to the clamp body 1, and the inner diameter of the first through hole is smaller than the cylindrical groove. A compression spring 7 is sleeved inside the cylindrical groove, and the end of the compression spring 7 away from the guide sleeve 5 abuts against the clamp body 1. The compression spring 7 applies force to the guide sleeve 5, so that the guide sleeve 5 has a tendency to move away from the clamp body 1.

[0022] See also Figure 2 and Figure 3 A slider retaining ring 3 is also sleeved inside the clamp body 1, and the slider retaining ring 3 and the clamp body 1 are fixedly connected by four cross-slot countersunk screws 31; specifically, one side of the slider retaining ring 3 abuts against the steel sleeve 4, and the inner hole diameter of the slider retaining ring 3 is smaller than the inner hole diameter of the steel sleeve 4, and a circle of abutting portion 51 is provided on the outer ring of the guide sleeve 5, and the end of the guide sleeve 5 away from the compression spring 7 passes through the slider retaining ring 3, and the abutting portion 51 on the guide sleeve 5 abuts against the slider retaining ring 3, so that the slider retaining ring 3 can block the guide sleeve 5, and the compression spring 7 applies force to the guide sleeve 5, so that the guide sleeve 5 abuts against the slider retaining ring 3 when not working.

[0023] A positioning plate 2 is fixedly connected to the clamp body 1 by two second hexagon socket head screws 21, and a second through hole is provided in the middle of the positioning plate 2. Specifically, grooves are evenly distributed on the inner hole wall of the second through hole, and the diameter of the second through hole is larger than the diameter of the wheel disc 013, so that the second through hole can allow the fixing rod 011, the cone 0111 and the blades 012 of the impeller 01 to pass through, and the blades 012 of the impeller 01 can be placed in the grooves; after the wheel disc 013 is installed on the clamp body 1, one side of the wheel disc 013 can abut against the positioning plate 2.

[0024] Preferably, the positioning disc 2 is provided with three pressing plates 6 respectively installed on a side away from the clamp body 1 through three hexagonal nuts 61 . The pressing plates 6 are used in conjunction with the clamp body 1 to fix the impeller 01 and process the inner hole of the impeller 01 .

[0025] In summary, in actual use, the staff installs the impeller 01 on the clamp body 1, and the fixing rod 011 of the impeller 01 is inserted into the first through hole of the guide sleeve 5. At this time, the cone 0111 will be against the guide sleeve 5, and the blades 012 of the impeller 01 extend into the second through hole of the positioning disk 2. At this time, the tail seat 032 moves, and the top 033 of the tail seat 032 presses against the wheel disc 013 of the impeller 01, pushing the impeller 01 in the direction of the compression spring 7. At this time, the guide sleeve 5 slides in the steel sleeve 4, and the guide sleeve 5 compresses the compression spring 7 until the wheel disc 013 abuts against the positioning disk. At this time, the clamping is completed, and then the cutting equipment performs a cutting operation on the wheel disc 013 of the impeller 01. The device thus realizes the precise positioning and stable clamping of the impeller 01.

[0026] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field may make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. An impeller processing fixture, characterized in that: The invention comprises a clamp body (1); a steel sleeve (4) is installed inside the clamp body (1); a guide sleeve (5) is slidably sleeved inside the steel sleeve (4); a first through hole is provided inside the guide sleeve (5); a compression spring (7) is installed between the guide sleeve (5) and the clamp body (1); a slider retaining ring (3) installed on the clamp body (1) is abutted on the side of the steel sleeve (4) away from the clamp body (1); an inner hole is provided in the middle of the slider retaining ring (3); a positioning plate (2) is installed on the clamp body (1); a second through hole is provided in the middle of the positioning plate (2); a pressure plate (6) is installed on the side of the positioning plate (2) away from the clamp body (1).

2. The impeller processing fixture according to claim 1, characterized in that: The steel sleeve (4) and the clamp body (1) are fixedly connected via two first hexagon socket head screws (41).

3. The impeller processing fixture according to claim 1, characterized in that: The slider retaining ring (3) and the clamp body (1) are fixedly connected via four cross recessed countersunk screws (31).

4. The impeller processing fixture according to claim 1, characterized in that: A cylindrical groove is provided at one end of the guide sleeve (5) close to the clamp body (1); one end of the compression spring (7) is installed in the cylindrical groove, and the other end abuts against the clamp body (1).

5. The impeller machining fixture according to claim 4, characterized in that: An abutment portion (51) is provided on the guide sleeve (5), and one end of the guide sleeve (5) away from the compression spring (7) passes through the slider retaining ring (3), and the abutment portion (51) abuts against the slider retaining ring (3).

6. The impeller machining fixture according to claim 1, characterized in that: Three pressing plates (6) are installed on the positioning plate (2).

7. The impeller machining fixture according to claim 1, characterized in that: The positioning plate (2) is fixedly connected to the pressure plate (6) via a hexagonal nut (61).

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