Impeller linear cutting clamp based on four-axis machining

Abstract

The utility model discloses an impeller wire cutting clamp based on four-axis machining, and relates to the technical field of clamps, the impeller wire cutting clamp comprises a placing frame, a rotating shaft is rotatably installed on the inner wall of one side of the placing frame, two sections of external threads which are oppositely arranged are arranged on the rotating shaft, the two external threads are both sleeved with threaded blocks in a threaded mode, and the threaded blocks are arranged on the inner wall of one side of the placing frame. Lower racks are fixedly mounted at the tops of the two threaded blocks correspondingly, and a sliding hole is formed in the inner wall of the top side of the containing frame. The impeller clamping device is reasonable in structure, when the impeller clamping device is used, an impeller is placed on the top of the containing frame, the two inner clamping blocks are located in an inner ring of the impeller, the two outer sliding columns are located outside an outer ring of the impeller, the two inner clamping blocks can make contact with the inner ring of the impeller firstly through rotation of the rotating shaft, then the two outer sliding columns and the two outer clamping blocks are made to be close to the two inner sliding columns, and the impeller is clamped. Therefore, the two outer clamping blocks clamp the outer ring of the impeller, meanwhile, the two inner clamping blocks abut against the inner ring of the impeller, and limiting of the inner ring and the outer ring is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of fixtures, in particular to an impeller wire cutting fixture based on four-axis machining. Background Art

[0002] The impeller refers to the wheel disc with moving blades, which is a component of the impulse turbine rotor, and can also refer to the general term for the wheel disc and the rotating blades installed on it. Impellers can be classified according to their shape and opening and closing conditions. In the prior art, when the impeller is subjected to wire cutting processing on a four-axis linkage processing machine tool, the impeller needs to be clamped.

[0003] In the prior art, CN217291434U discloses a fixture for impeller processing. When clamping the impeller, it is necessary to replace different positioning shafts to clamp the inner ring of the impeller, and it is necessary to start the electric telescopic rod to clamp the outer ring of the impeller for the second time. The operation is relatively cumbersome. For this reason, the present application discloses an impeller wire cutting fixture based on four-axis machining to meet people's needs. Utility Model Content

[0004] The purpose of the present application is to provide an impeller wire cutting fixture based on four-axis machining to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an impeller wire cutting fixture based on four-axis machining, comprising a placing frame, a rotating shaft is rotatably installed on an inner wall of one side of the placing frame, and the rotating shaft is provided with two sections of external threads arranged oppositely, and thread blocks are threadedly sleeved on the two external threads, and lower racks are fixedly installed on the tops of the two thread blocks, and a sliding hole is opened on the inner wall of the top side of the placing frame, and a sliding rod is fixedly installed on the inner walls on both sides of the sliding hole, and two inner sliding columns and two outer sliding columns are slidably sleeved on the sliding rod, and inner clamping blocks are fixedly installed on the tops of the two outer sliding columns, and outer clamping blocks are fixedly installed on the tops of the two outer sliding columns, and the two inner sliding columns are respectively connected to the two lower racks through a reset mechanism, and the two outer sliding columns are installed in cooperation with the two lower racks through two gear moving mechanisms, and two moving springs are slidably sleeved on the sliding rod, and the two ends of the moving spring are fixedly installed on the sides of the adjacent inner sliding column and the outer sliding column.

[0006] Preferably, the reset mechanism includes two telescopic rods fixedly mounted on the side of the inner sliding column, one end of the two telescopic rods away from the inner sliding column is fixedly mounted on the side of the lower rack, and the side of the inner sliding column is fixedly connected to the side of the lower rack through a reset spring.

[0007] Preferably, the gear moving mechanism comprises an upper rack fixedly mounted on the bottom of the outer sliding column, a gear is meshed at the bottom of the upper rack, and the gear is meshed with the lower rack.

[0008] Preferably, mounting plates are fixedly mounted on both side portions of the two inner sliding columns, and the gear is rotatably mounted on the side portions of the two mounting plates close to each other via a rotating shaft.

[0009] Preferably, the tops of the two outer clamping blocks and the two inner clamping blocks are provided with pressing grooves, the inner walls of the four pressing grooves are fixedly installed with studs, the tops of the four studs are threadedly sleeved with threaded pressing caps, and the sides of the four threaded pressing caps extend outside the four pressing grooves respectively.

[0010] Preferably, a rotating hole is opened on an inner wall of one side of the placement frame, and one end of the rotating shaft passes through the rotating hole and a rotating disk is fixedly installed thereon.

[0011] Preferably, a fixing nut is threadedly sleeved on the rotating shaft, and the fixing nut abuts against a side of the placement frame.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] The utility model has a reasonable structure. When in use, the impeller is placed on the top of the placement frame, the two inner clamping blocks are located inside the inner ring of the impeller, and the two outer sliding columns are located outside the outer ring of the impeller. The two inner clamping blocks can be firstly contacted with the inner ring of the impeller by rotating the rotating shaft, and then the two outer sliding columns and the two outer clamping blocks are close to the two inner sliding columns, so that the two outer clamping blocks clamp the outer ring of the impeller, and at the same time, the two inner clamping blocks abut against the inner ring of the impeller, so as to complete the limiting of the inner ring and the outer ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of a three-dimensional structure from a first viewing angle of an embodiment of the present application;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 A schematic diagram of a second viewing angle stereoscopic structure of an embodiment of the present application;

[0018] Figure 4This is a front view of an embodiment of the present application.

[0019] In the figure: 1. placement frame; 2. rotating shaft; 3. external thread; 4. thread block; 5. sliding rod; 6. internal sliding column; 7. internal clamping block; 8. external sliding column; 9. external clamping block; 10. mounting plate; 11. gear; 12. telescopic rod; 13. return spring; 14. lower rack; 15. turntable; 16. fixing nut; 17. stud; 18. threaded pressure cap; 19. moving spring; 20. upper rack. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example: Reference Figure 1-Figure 4 The impeller wire cutting fixture based on four-axis machining shown in the figure comprises a placing frame 1, a rotating shaft 2 is rotatably installed on the inner wall of one side of the placing frame 1, two sections of oppositely arranged external threads 3 are provided on the rotating shaft 2, thread blocks 4 are threadedly sleeved on the two external threads 3, and lower racks 14 are fixedly installed on the tops of the two thread blocks 4, a sliding hole is provided on the inner wall of the top side of the placing frame 1, sliding rods 5 are fixedly installed on the inner walls on both sides of the sliding hole, two inner sliding columns 6 and two outer sliding columns 8 are slidably sleeved on the sliding rod 5, the two side parts of the inner sliding column 6 and the two side parts of the outer sliding column 8 are respectively slidably connected to the inner walls on both sides of the sliding hole, the tops of the two inner sliding columns 6 are fixedly installed with inner clamping blocks 7, and the tops of the two outer sliding columns 8 are fixedly installed with The outer clamping block 9 and the two inner sliding columns 6 are connected to the two lower racks 14 respectively through the reset mechanism, and the two outer sliding columns 8 are installed in cooperation with the two lower racks 14 through two gear moving mechanisms. Two moving springs 19 are slidably sleeved on the slide bar 5, and the two ends of the moving spring 19 are fixedly installed on the sides of the inner sliding column 6 and the outer sliding column 8 that are close to each other. The rotating shaft 2 rotates, and the rotating shaft 2 rotates to drive the two lower racks 14 away from each other through the two threaded blocks 4. Due to the action of the moving spring 19, the inner sliding column 6 and the outer sliding column 8 can move together, so that the two inner sliding columns 6 move away from each other, the two outer sliding columns 8 move away from each other, and then the two inner clamping blocks 7 move away from each other, and the two outer sliding columns 8 move away from each other.

[0022] With the help of the above structure, when in use, the impeller is placed on the top of the placement frame 1, the two inner clamping blocks 7 are located inside the inner ring of the impeller, and the two outer sliding columns 8 are located outside the outer ring of the impeller. By rotating the rotating shaft 2, the two inner clamping blocks 7 can first contact the inner ring of the impeller, and then the two outer sliding columns 8 and the two outer clamping blocks 9 are close to the two inner sliding columns 6, so that the two outer clamping blocks 9 clamp the outer ring of the impeller, and at the same time, the two inner clamping blocks 7 are abutted against the inner ring of the impeller, thereby completing the limiting of the inner ring and the outer ring.

[0023] The reset mechanism includes two telescopic rods 12 fixedly mounted on the side of the inner sliding column 6. One end of the two telescopic rods 12 away from the inner sliding column 6 is fixedly mounted on the side of the lower rack 14. The side of the inner sliding column 6 is fixedly connected to the side of the lower rack 14 through the reset spring 13. When the two inner clamping blocks 7 are in contact with the inner ring of the impeller, the two inner clamping blocks 7 and the two inner sliding columns 6 cannot move. At this time, the two threaded blocks 4 continue to move away from each other so that the two lower racks 14 move, the two reset springs 13 are deformed, and the two telescopic rods 12 are stretched at the same time.

[0024] The gear moving mechanism includes an upper rack 20 fixedly mounted on the bottom of the outer sliding column 8, and a gear 11 is meshed at the bottom of the upper rack 20, and the gear 11 is meshed with a lower rack 14. The movement of the two lower racks 14 causes the two gears 11 to rotate, so that the two upper racks 20 are close to the two inner sliding columns 6.

[0025] The two sides of the two inner sliding columns 6 are fixedly mounted with mounting plates 10, and the gear 11 is rotatably mounted on the sides of the two mounting plates 10 close to each other through the rotating shaft. The mounting plates 10 are arranged to limit the position of the gear 11.

[0026] The tops of the two outer clamping blocks 9 and the two inner clamping blocks 7 are provided with pressing grooves, the inner walls of the four pressing grooves are fixedly mounted with studs 17, the tops of the four studs 17 are threadedly sleeved with threaded pressing caps 18, and the sides of the four threaded pressing caps 18 extend outside the four pressing grooves respectively. The top of the impeller can be fixed by rotating the four threaded pressing caps 18, thereby completing the limit.

[0027] A rotating hole is provided on the inner wall of one side of the placing frame 1, and one end of the rotating shaft 2 passes through the rotating hole and is fixedly installed with a rotating disk 15. The rotating disk 15 facilitates the rotation of the rotating shaft 2.

[0028] A fixing nut 16 is threadedly sleeved on the rotating shaft 2, and the fixing nut 16 abuts against the side of the placing frame 1. Then loosening the fixing nut 16 can loosen the rotating shaft 2, and vice versa, the rotating shaft 2 can be fixed.

[0029] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire cutting fixture for an impeller in four-axis machining, comprising a placement frame (1), characterized in that: A rotating shaft (2) is rotatably mounted on the inner wall of one side of the placement frame (1), and the rotating shaft (2) is provided with two oppositely arranged external threads (3), and thread blocks (4) are threadedly sleeved on the two external threads (3), and lower racks (14) are fixedly mounted on the tops of the two thread blocks (4). A sliding hole is opened on the inner wall of the top side of the placement frame (1), and sliding rods (5) are fixedly mounted on the inner walls on both sides of the sliding hole. Two inner sliding columns (6) and two outer sliding columns (8) are slidably sleeved on the sliding rods (5), and the two inner sliding columns (6) are provided on the outer walls of the two sliding columns (8). ) are fixedly mounted with an inner clamping block (7) at the top end, and the outer clamping block (9) is fixedly mounted with the top end of the two outer sliding columns (8). The two inner sliding columns (6) are respectively connected to the two lower racks (14) through a reset mechanism, and the two outer sliding columns (8) are mounted in coordination with the two lower racks (14) through two gear moving mechanisms. Two moving springs (19) are slidably sleeved on the sliding rod (5), and the two ends of the moving spring (19) are fixedly mounted on the sides of the inner sliding column (6) and the outer sliding column (8) that are adjacent to each other.

2. The impeller wire cutting fixture based on four-axis machining according to claim 1 is characterized in that: The reset mechanism comprises two telescopic rods (12) fixedly mounted on the side of the inner sliding column (6), one end of the two telescopic rods (12) away from the inner sliding column (6) is fixedly mounted on the side of the lower rack (14), and the side of the inner sliding column (6) is fixedly connected to the side of the lower rack (14) via a reset spring (13).

3. The impeller wire cutting fixture based on four-axis machining according to claim 1 is characterized in that: The gear moving mechanism comprises an upper rack (20) fixedly mounted on the bottom of the outer sliding column (8), a gear (11) meshing with the bottom of the upper rack (20), and the gear (11) meshing with the lower rack (14).

4. The impeller wire cutting fixture based on four-axis machining according to claim 3 is characterized in that: Mounting plates (10) are fixedly mounted on both sides of the two inner sliding columns (6), and the gear (11) is rotatably mounted on the sides of the two mounting plates (10) that are close to each other via a rotating shaft.

5. The impeller wire cutting fixture based on four-axis machining according to claim 1 is characterized by: The tops of the two outer clamping blocks (9) and the two inner clamping blocks (7) are provided with pressing grooves, the inner walls of the four pressing grooves are fixedly mounted with studs (17), the tops of the four studs (17) are threadedly sleeved with threaded pressing caps (18), and the sides of the four threaded pressing caps (18) extend outside the four pressing grooves respectively.

6. The impeller wire cutting fixture based on four-axis machining according to claim 1 is characterized by: A rotating hole is provided on the inner wall of one side of the placement frame (1), and one end of the rotating shaft (2) passes through the rotating hole and is fixedly mounted with a rotating disk (15).

7. The impeller wire cutting fixture based on four-axis machining according to claim 1 is characterized by: A fixing nut (16) is threadedly sleeved on the rotating shaft (2), and the fixing nut (16) abuts against the side of the placement frame (1).

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