Fixing tool for testing torque of stator core

Abstract

The utility model discloses a fixing tool for a torque test of a stator core, which comprises a fixing base, four groups of guide sliding rods are arranged above the fixing base in parallel, two ends of each two groups of guide sliding rods are fixed on the fixing base through vertical plates, each group of guide sliding rods is respectively connected with two groups of support sliding blocks in a sliding manner, and meanwhile, the two groups of support sliding blocks are fixed on the fixing base through vertical plates. The four sets of supporting sliding blocks located on the same side are fixedly connected with a fixing body. Guide grooves are formed in the four corners of the fixing main body, the guide grooves are distributed in the radial direction of a through hole in the inner side of the fixing main body, fixing pieces are connected to the guide grooves, and a synchronous clamping mechanism is arranged on the fixing main body; two sets of synchronous clamping mechanisms which are symmetrically distributed are fixed to the two sides of the bottom of the middle of the fixing base, distance adjusting mechanisms are connected to the synchronous clamping mechanisms, and the distance adjusting mechanisms are connected with the bottom of the fixing body. The utility model belongs to the technical field of stator core testing and fixing, and particularly relates to a fixing tool for a stator core torque test.

Description

Technical Field

[0001] This utility model belongs to the field of stator core testing and fixing technology, specifically referring to a fixing fixture for stator core torque testing. Background Technology

[0002] As an important component of the motor, the quality and performance of the stator core indirectly affect the accuracy of torque testing and the overall performance of the motor. It is usually composed of silicon steel sheets of different shapes, thicknesses and lengths, which are cut, shaped and welded.

[0003] Since the stator core is made of multiple sets of silicon steel sheets welded together, and there are many different sizes and specifications, most of the existing fixing fixtures are structural fixtures that are fixed by bolts. This not only cannot adapt well to the fixing of different stator cores, but also requires repeated tightening of bolts during adjustment and replacement, which is laborious and inefficient. Therefore, we propose a fixing fixture for stator core torque testing to solve the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a fixing fixture for stator core torque testing, which effectively solves the problem that the existing fixing fixture is not convenient to fix stator cores of different sizes and models, and also solves the problem of cumbersome operation steps and low efficiency when changing fixing fixtures.

[0005] The technical solution adopted by this utility model is as follows: This utility model proposes a fixing fixture for stator core torque testing, including a fixing base. Four sets of guide slide rods are arranged parallel above the fixing base. The two ends of every two sets of guide slide rods are fixed to the fixing base by a vertical plate. Two sets of support sliders are slidably connected to each set of guide slide rods. At the same time, the four sets of support sliders on the same side are fixedly connected to a fixing body. Guide grooves are provided at the four corners of the fixing body, and the guide grooves are radially distributed along the through hole inside the fixing body. Fixing components are connected to the guide grooves. A synchronous clamping mechanism is provided on the fixing body, and the synchronous clamping mechanism is connected to the fixing component. Two sets of synchronous clamping mechanisms are symmetrically distributed on both sides of the bottom center of the fixing base, and an adjustment mechanism is connected to the synchronous clamping mechanism. The adjustment mechanism is connected to the bottom of the fixing body.

[0006] As an improvement to this solution, the synchronous clamping mechanism includes a limiting slide rail, a turntable, and a driving slide groove. The limiting slide rail is located on both side walls of the fixed body and is radially located outside the guide groove. The turntable is rotatably connected to the limiting slide rail via a limiting ring and is distributed on both sides of the fixed body. The driving slide groove is evenly distributed along the circumference of the turntable.

[0007] As an improvement to this solution, the two sets of turntables are connected by a connecting rod, and the connecting rod is located above the fixed body. At the same time, a hydraulic cylinder is rotatably connected to the upper end of the fixed body, and the other end of the hydraulic cylinder is rotatably connected to the connecting rod.

[0008] As an improvement to this solution, the fixing component consists of a sliding plate and two sets of fixing plates symmetrical about the sliding plate. The sliding plate is slidably connected to the guide groove and passes through the guide groove. The two sets of fixing plates are respectively fixed to both ends of the sliding plate, and a drive shaft is fixed to the outside of the fixing plate. The drive shaft is slidably connected to the drive groove. A fixing clamp is fixed to the bottom of the fixing plate.

[0009] As an improvement to this solution, the adjusting mechanism includes a push rod and a swing rod. The push rod is provided in two sets and is rotatably connected to the middle of the bottom of the fixed body. The swing rod is rotatably connected between the two sets of push rods, and a rotating shaft is fixed at the bottom of the middle of the swing rod. The rotating shaft is rotatably connected to the fixed base and passes through the fixed base.

[0010] As an improvement to this solution, a worm gear is fixed on the rotating shaft, a worm is engaged on one side of the worm gear, and both ends of the worm are rotatably connected to the positioning plate. A handle is rotatably connected to the outside of the positioning plate, and the handle passes through the positioning plate and is fixed to one end of the worm.

[0011] As an improvement to this solution, the limiting slide rail is set as an arc plate with an L-shaped cross section, and the limiting rotating ring is set as a circular ring with an L-shaped cross section. Meanwhile, the driving slide groove is set as an arc-shaped through hole, and the fixing clamp is set as an arc plate with its center coaxial with the fixing body.

[0012] The beneficial effects of this utility model by adopting the above structure are as follows:

[0013] 1. It adopts a symmetrical structural design and can adjust the distance between the two fixed bodies through the adjustable distance mechanism. Combined with the variable diameter multi-directional synchronous clamping mechanism, it can install and fix stator cores of different sizes and models, which is convenient for torque testing. Moreover, it is driven by a hydraulic cylinder, which makes the fixation more stable.

[0014] 2. The overall structure is designed for simple operation. The distance between the two sets of fixed bodies can be adjusted by turning the handle. The radial synchronous movement of the fixed parts can be achieved through multiple sets of arc-shaped drive grooves on the turntable. The synchronous operation not only improves the centering of the fixation and the accuracy of torque testing, but also can adapt to the fixation of stator cores of various shapes, making it widely applicable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a fixing fixture for testing stator core torque proposed in this utility model.

[0016] Figure 2 This is a cross-sectional view of a fixing fixture for testing the torque of a stator core proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of a fixed fixture for testing stator core torque according to the present invention, viewed from below.

[0018] Figure 4 This is a structural schematic diagram of the fixed body and synchronous clamping mechanism components in this embodiment;

[0019] Figure 5 This is a component diagram of the fastener in this embodiment;

[0020] Figure 6 This is a schematic diagram of the installation of the fastener in this embodiment.

[0021] The components are as follows: 1. Fixed base; 2. Guide slide rod; 3. Vertical plate; 4. Support slider; 5. Fixed body; 6. Guide groove; 7. Fixing component; 8. Synchronous clamping mechanism; 9. Positioning plate; 10. Adjustment mechanism; 11. Limit slide rail; 12. Turntable; 13. Limit rotating ring; 14. Drive slide groove; 15. Connecting rod; 16. Hydraulic cylinder; 17. Slide plate; 18. Fixed plate; 19. Fixed clamping plate; 20. Drive slide shaft; 21. Push rod; 22. Swing rod; 23. Rotating shaft; 24. Worm gear; 25. Worm; 26. Handle.

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the present invention proposes a fixed fixture for testing the torque of a stator core, including a fixed base 1. Four sets of guide slide rods 2 are arranged parallel above the fixed base 1. The two ends of each pair of guide slide rods 2 are fixed to the fixed base 1 by a vertical plate 3. Two sets of support sliders 4 are slidably connected to each set of guide slide rods 2. At the same time, the four sets of support sliders 4 on the same side are fixedly connected to a fixed body 5.

[0025] To achieve multi-directional fixation of the stator core and improve the stability of the fixation, guide grooves 6 are provided at the four corners of the fixing body 5, and the guide grooves 6 are radially distributed along the inner through hole of the fixing body 5. Fixing members 7 are connected to the guide grooves 6. The fixing body 5 is provided with a synchronous clamping mechanism 8, and the synchronous clamping mechanism 8 is connected to the fixing member 7. The synchronous clamping mechanism 8 includes a limiting slide rail 11, a turntable 12 and a driving slide groove 14. The limiting slide rail 11 is provided on the two side walls of the fixing body 5 and is radially located outside the guide groove 6. The turntable 12 is rotatably connected to the limiting slide rail 11 through a limiting rotating ring 13 and is distributed on both sides of the fixing body 5. The driving slide groove 14 is evenly distributed along the circumference of the turntable 12. The limiting slide rail 11 is set as an arc plate with an L-shaped cross section, and the limiting rotating ring 13 is set as a circular ring with an L-shaped cross section. At the same time, the driving slide groove 14 is set as an arc-shaped through hole.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, the two sets of turntables 12 are connected by a connecting rod 15, and the connecting rod 15 is located above the fixed body 5. At the same time, a hydraulic cylinder 16 is rotatably connected to the upper end of the fixed body 5, and the other end of the hydraulic cylinder 16 is rotatably connected to the connecting rod 15.

[0027] To fix stator cores of different sizes, two sets of synchronous clamping mechanisms 8 are symmetrically distributed on both sides of the bottom center of the fixed base 1. An adjusting mechanism 10 is connected to the synchronous clamping mechanism 8. The adjusting mechanism 10 is connected to the bottom of the fixed body 5. The adjusting mechanism 10 includes a push rod 21 and a swing rod 22. There are two sets of push rods 21, which are rotatably connected to the middle of the bottom of the fixed body 5. The swing rod 22 is rotatably connected between the two sets of push rods 21. A rotating shaft 23 is fixed at the bottom center of the swing rod 22. The rotating shaft 23 is rotatably connected to the fixed base 1 and passes through the fixed base 1.

[0028] like Figure 2 and Figure 3 As shown, a worm gear 24 is fixed on the rotating shaft 23. A worm 25 is meshed on one side of the worm gear 24, and both ends of the worm 25 are rotatably connected to the positioning plate 9. A handle 26 is rotatably connected to the outside of the positioning plate 9, and the handle 26 passes through the positioning plate 9 and is fixed to one end of the worm 25.

[0029] like Figure 5As shown, the fixing component 7 consists of a slide plate 17 and two sets of fixing plates 18 symmetrical about the slide plate 17. The slide plate 17 is slidably connected to the guide groove 6 and passes through the guide groove 6. The two sets of fixing plates 18 are respectively fixed to both ends of the slide plate 17, and a drive slide shaft 20 is fixed to the outside of the fixing plate 18. The drive slide shaft 20 is slidably connected to the drive slide groove 14. A fixing clamp 19 is fixed to the bottom of the fixing plate 18. The fixing clamp 19 is arranged in an arc shape and its center is coaxial with the fixing body 5.

[0030] In practical use, the stator core is placed between two sets of fixed bodies 5 from one side. The handle 26 is turned to drive the worm gear 25, which in turn drives the rotating shaft 23 to rotate. The swing rod 22 located at the upper end of the rotating shaft 23 rotates accordingly, pulling the push rods 21 at both ends of the swing rod 22 closer to the center until both ends of the stator core pass through the fixed bodies 5 on both sides. Then, the hydraulic cylinder 16 is opened to push the connecting rod 15. The turntable 12 connected to the connecting rod 15 rotates on the limiting slide rail 11 under the drive of the connecting rod 15, using the limiting rotating ring 13. Through the drive slide groove 14 on the limiting rotating ring 13, the drive slide shaft 20 drives the slide plate 17 and the fixed plate 18 to gradually move closer to the center until the fixed clamping plate 19 is pressed against the side wall of the stator core. Then, the torque tester is connected to the stator core. The above is the entire process of using the fixed fixture for stator core torque testing.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fixture for testing the torque of a stator core, comprising a fixed base (1), characterized in that: Four sets of guide slide rods (2) are arranged parallel above the fixed base (1). The two ends of each two sets of guide slide rods (2) are fixed to the fixed base (1) by the upright plate (3). Two sets of support sliders (4) are slidably connected to each set of guide slide rods (2). At the same time, the four sets of support sliders (4) on the same side are fixedly connected to the fixed body (5). The four corners of the fixed body (5) are provided with guide grooves (6), and the guide grooves (6) are radially distributed along the inner through hole of the fixed body (5). The guide grooves (6) are connected to the fixing parts (7). The fixed body (5) is provided with a synchronous clamping mechanism (8), and the synchronous clamping mechanism (8) is connected to the fixing parts (7). Two sets of synchronous clamping mechanisms (8) are fixed on both sides of the bottom center of the fixed base (1), and an adjustment mechanism (10) is connected to the synchronous clamping mechanism (8). The adjustment mechanism (10) is connected to the bottom of the fixed body (5).

2. The fixture for testing stator core torque according to claim 1, characterized in that: The synchronous clamping mechanism (8) includes a limiting slide rail (11), a turntable (12) and a drive slide groove (14). The limiting slide rail (11) is located on both sides of the fixed body (5) and is located radially on the outside of the guide groove (6). The turntable (12) is rotatably connected to the limiting slide rail (11) through a limiting rotating ring (13) and is distributed on both sides of the fixed body (5). The drive slide groove (14) is evenly distributed along the circumference of the turntable (12).

3. The fixture for testing stator core torque according to claim 2, characterized in that: The two sets of turntables (12) are connected by a connecting rod (15), and the connecting rod (15) is located above the fixed body (5). At the same time, a hydraulic cylinder (16) is rotatably connected to the upper end of the fixed body (5), and the other end of the hydraulic cylinder (16) is rotatably connected to the connecting rod (15).

4. The fixture for testing stator core torque according to claim 3, characterized in that: The fixing component (7) consists of a sliding plate (17) and two sets of fixing plates (18) symmetrical about the sliding plate (17). The sliding plate (17) is slidably connected to the guide groove (6) and is set through the guide groove (6). The two sets of fixing plates (18) are respectively fixed to both ends of the sliding plate (17), and a drive shaft (20) is fixed on the outside of the fixing plate (18). The drive shaft (20) is slidably connected in the drive groove (14). A fixing clamp (19) is fixed at the bottom of the fixing plate (18).

5. The fixture for testing stator core torque according to claim 1, characterized in that: The adjusting mechanism (10) includes a push rod (21) and a swing rod (22). The push rod (21) is provided in two sets and is rotatably connected to the middle of the bottom of the fixed body (5). The swing rod (22) is rotatably connected between the two sets of push rods (21), and a rotating shaft (23) is fixed at the bottom of the middle of the swing rod (22). The rotating shaft (23) is rotatably connected to the fixed base (1) and passes through the fixed base (1).

6. The fixture for testing stator core torque according to claim 5, characterized in that: A worm gear (24) is fixed on the rotating shaft (23). A worm (25) is meshed on one side of the worm gear (24), and both ends of the worm (25) are rotatably connected to the positioning plate (9). A handle (26) is rotatably connected to the outside of the positioning plate (9), and the handle (26) passes through the positioning plate (9) and is fixed to one end of the worm (25).

7. The fixture for testing stator core torque according to claim 4, characterized in that: The limiting slide rail (11) is an arc plate with an L-shaped cross section, and the limiting rotating ring (13) is a circular ring with an L-shaped cross section. Meanwhile, the driving slide groove (14) is an arc-shaped through hole, and the fixing clamp (19) is an arc plate with its center coaxial with the fixing body (5).

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