CN219802113U

CN219802113U - Stator clamping jig

Info

Publication number: CN219802113U
Application number: CN202320517544.XU
Authority: CN
Inventors: 吴文波; 唐东亚; 阙扶扣
Original assignee: Suzhou Huiyilong Mechanical Electronics Co ltd
Current assignee: Suzhou Huiyilong Mechanical Electronics Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-10-03
Anticipated expiration: 2033-03-17

Abstract

The utility model discloses a stator clamping jig, which relates to the field of clamping devices and has the technical scheme that: including support, expansion block and expansion taper shaft, the support is provided with first vertical logical groove and the radial spout that leads to the groove intercommunication with first vertical, expansion taper shaft arranges first vertical logical inslot in, radial sliding connection of expansion block along first vertical logical groove is in radial spout, one side that expansion block is close to expansion taper shaft is provided with the inclined plane with expansion taper shaft looks adaptation, one end of support is provided with the spacing subassembly that is used for preventing expansion taper shaft circumferential direction, the other end of support is provided with the drive assembly who is used for driving expansion taper shaft vertical lift, a plurality of expansion blocks are configured to when expansion taper shaft vertical lift, a plurality of expansion blocks slide shrink in opposite directions or the expansion of sliding in opposite directions. The utility model has the advantages of simple structure, convenient operation and good clamping stability.

Description

Stator clamping jig

Technical Field

The utility model relates to the field of clamp devices, in particular to a stator clamping jig.

Background

When the motor is assembled, the motor stator needs to be installed in the motor shell, and the motor stator is inconvenient to hoist because a hoisting hole cannot be directly machined on the motor stator. The Chinese patent with publication number CN109600004A discloses a clamp for clamping a stator, and the technical scheme is as follows: comprising the following steps: the self-rotating shaft rod of hollow structure, anchor clamps fixed disk, its characterized in that are installed to the one end of self-rotating shaft rod: a plurality of rotatable clamp feet are arranged on the clamp fixing plate, and a limiting groove with a U-shaped structure is formed in one side of each clamp foot; the movable ejector rod is arranged in the rotation shaft rod, one end of the ejector rod is provided with a screw rod, the ejector rod is connected with the screw rod through threads, the screw rod can be synchronously driven to move up and down in the rotation shaft rod by rotation of the screw rod, and the other end of the ejector rod is provided with a clamping part mutually clamped with the limiting groove.

The clamp can adapt to the clamping of stators with different inner diameters and different lengths, but is in contact with the inner side wall of the stator only through the clamp foot accessory when clamping the stator, and the contact area of the clamp foot accessory and the stator is small, so that the clamp is unstable and cannot meet the clamping requirement of a motor stator with larger weight, and the clamp foot of the clamp is connected with the clamp fixing disc in a hinged mode, so that the clamp foot is easy to shake, and the overall structural strength of the clamp is low.

There is therefore a need to propose a new solution to this problem.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the stator clamping jig which has the advantages of simple structure, convenience in operation and good clamping stability.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a stator centre gripping tool, includes support, expansion piece and expansion taper shaft, the support is provided with first vertical logical groove and the radial spout that communicates with first vertical logical groove, expansion taper shaft arranges in first vertical logical inslot, radial spout sets up to a plurality of, a plurality of radial spout sets up along the circumference annular array of first vertical logical groove, expansion piece is along the radial sliding connection of first vertical logical groove in radial spout, expansion piece and radial spout quantity are the same, one side that expansion piece is close to expansion taper shaft is provided with the inclined plane with expansion taper shaft looks adaptation, the one end of support is provided with the spacing subassembly that is used for preventing expansion taper shaft circumference pivoted, the other end of support is provided with the drive assembly that is used for driving expansion taper shaft vertical lift, a plurality of expansion piece is configured as when expansion taper shaft vertical lift, a plurality of expansion piece slides in opposite direction shrink or the expansion of sliding in opposite directions.

In one embodiment, the driving assembly comprises a pressing seat, a pressing plate, a connecting rod and an adjusting nut, wherein a second longitudinal through groove is formed in the pressing seat, the second longitudinal through groove is coaxial with the first longitudinal through groove, the diameter of the second longitudinal through groove is smaller than that of the first longitudinal through groove, the connecting rod penetrates through the second longitudinal through groove and is fixedly connected with the expansion taper shaft, a rotating groove is formed in one end, far away from the expansion taper shaft, of the pressing seat, the rotating groove is coaxial with the second longitudinal through groove, a rotating part is formed in the outer peripheral wall of the adjusting nut in an outward protruding mode, the rotating part is rotatably connected in the rotating groove, a pressing plate used for limiting the rotating part in the rotating groove is arranged on the pressing seat, a threaded section is arranged on the connecting rod, the threaded section is in threaded connection with the adjusting nut, and a hanging ring is fixed at one end, far away from the expansion taper shaft, of the connecting rod.

In one embodiment, a spring is sleeved on the connecting rod between the expansion cone shaft and the pressing seat.

In one embodiment, an elastic hoop used for tightening and shrinking a plurality of expansion blocks is arranged on the support, hooping grooves are respectively arranged on the side walls of two ends of the support, a clamping portion is arranged at one end, close to the hooping grooves, of each expansion block, and the elastic hoop is tightened on the clamping portion.

In one embodiment, the limiting component is a limiting pin, a pin groove is longitudinally formed in the side wall of the expansion block, one end of the limiting pin is fixed to the support, and the other end of the limiting pin extends into the pin groove in the radial direction.

In summary, the utility model has the following beneficial effects: during operation, place the centre gripping tool in the stator, drive assembly drive expansion taper axle upwards slides, expansion taper axle outwards struts a plurality of expansion blocks along the inclined plane of expansion block, thereby a plurality of expansion blocks support tightly on the interior perisporium of stator, thereby realize the centre gripping of stator, and simple structure has, the simple operation's advantage, and adopt expansion taper axle and expansion block's inclined plane complex mode to realize the slip of a plurality of expansion blocks, expansion block slip in-process closely laminating with expansion taper axle all the time, make expansion block self have better stability, simultaneously have great area of contact between a plurality of expansion blocks and the inside wall of stator, make the stator be difficult to take place the landing at the centre gripping in-process, the stability of stator centre gripping has effectively been improved.

Drawings

Fig. 1 is a schematic structural diagram of a stator clamping jig according to an embodiment of the utility model;

FIG. 2 is an exploded view of a stator clamping jig according to an embodiment of the present utility model;

fig. 3 is a cross-sectional view of a stator clamping jig according to an embodiment of the utility model.

In the figure: 1. a bracket; 11. a first longitudinal through slot; 12. a jack; 13. radial sliding grooves; 2. an expansion block; 3. an elastic band; 31. pressing a base; 32. a pressing plate; 33. an adjusting nut; 331. a rotating part; 34. a connecting rod; 4. a drive assembly; 5. a hanging ring; 6. a spring; 8. an expansion cone shaft; 81. a pin slot; 9. and a limiting pin.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a stator clamping fixture, which includes a bracket 1, an expansion block 2 and an expansion cone shaft 8, wherein the bracket 1 is provided with a first longitudinal through groove 11 and a radial chute 13 communicated with the first longitudinal through groove 11, the expansion cone shaft 8 is disposed in the first longitudinal through groove 11, and the diameter of the first expansion cone shaft 8 decreases from bottom to top. The number of the radial sliding grooves 13 is multiple, the radial sliding grooves 13 are arranged along the circumferential annular array of the first longitudinal through groove 11, the expansion blocks 2 are connected in the radial sliding grooves 13 in a sliding manner along the radial direction of the first longitudinal through groove 11, the number of the expansion blocks 2 is the same as that of the radial sliding grooves 13, and an inclined plane matched with the expansion taper shaft 8 is arranged on one side, close to the expansion taper shaft 8, of the expansion blocks 2. One end of the support 1 is provided with a limiting component for preventing the expansion cone shaft 8 from rotating circumferentially. The other end of the bracket 1 is provided with a driving component 4 for driving the expansion taper shaft 8 to longitudinally lift. The expansion blocks 2 are configured such that when the expansion cone shaft 8 is lifted up and down longitudinally, the expansion blocks 2 are contracted in a sliding manner or expanded in a sliding manner in a reverse direction.

Above-mentioned centre gripping tool during operation, place the centre gripping tool in the stator, drive assembly 4 drive expansion taper shaft 8 upwards slide, expansion taper shaft 8 outwards struts a plurality of expansion blocks 2 along the inclined plane of expansion block 2, make a plurality of expansion blocks 2 support tightly on the inner peripheral wall of stator, thereby realize the centre gripping of stator, and has simple structure, the simple operation's advantage, and adopt expansion taper shaft 8 and expansion block 2's inclined plane complex mode to realize the slip of a plurality of expansion blocks 2, expansion block 2 slides in-process and is closely laminated with expansion taper shaft 8 all the time, make expansion block 2 self have better stability, have great area of contact between a plurality of expansion blocks 2 and the inside wall of stator simultaneously, make the stator be difficult to take place the landing in the centre gripping in-process, the stability of stator centre gripping has effectively been improved.

In this embodiment, the driving assembly 4 includes a pressing seat 31, a pressing plate 32, a connecting rod 34 and an adjusting nut 33, a second longitudinal through groove is disposed on the pressing seat 31, the second longitudinal through groove is coaxial with the first longitudinal through groove 11, the diameter of the second longitudinal through groove is smaller than that of the first longitudinal through groove 11, the connecting rod 34 passes through the second longitudinal through groove and is fixedly connected with the expansion cone shaft 8, a rotating groove is disposed at one end of the pressing seat 31 far away from the expansion cone shaft 8, the rotating groove is coaxial with the second longitudinal through groove, a rotating portion 331 is formed on the peripheral wall of the adjusting nut 33 in an outward protruding manner, the rotating portion 331 is rotatably connected in the rotating groove, a pressing plate 32 for limiting the rotating portion 331 in the rotating groove is disposed on the pressing seat 31, a threaded section is disposed on a part rod end section of the connecting rod 34, the threaded section is in threaded connection with the adjusting nut 33, and a hanging ring 5 is fixed at one end of the connecting rod 34 far away from the expansion cone shaft 8.

When the driving assembly 4 works, as the limiting assembly for preventing the expansion taper shaft 8 from rotating circumferentially is arranged on the bracket 1, when the adjusting nut 33 is rotated, the connecting rod 34 cannot rotate circumferentially, so that the rotating motion of the adjusting nut 33 can be converted into the linear motion of the connecting rod 34, the expansion taper shaft 8 can be driven to lift, and the lifting ring 5 is used for being connected with a carrier for transferring.

The driving assembly 4 has the advantages of simple structure, strong loading capacity and good stability.

In this embodiment, the spring 6 is sleeved on the connecting rod 34 between the expansion cone shaft 8 and the pressing seat 31.

By the arrangement of the spring 6, when the connecting rod 34 moves downwards and the threaded section is separated from the adjusting nut 33, the spring 6 can push out the expansion cone shaft 8 downwards so as to release the abutting force between the expansion block 2 and the stator, and the stator is taken out more easily.

In this embodiment, be provided with on the support 1 and be used for the elasticity band 3 of the shrink of a plurality of expansion blocks 2 hooping, be provided with the hooping groove on the both ends lateral wall of support 1 respectively, the one end that expansion block 2 is close to the hooping groove is provided with joint portion, elasticity band 3 hoops on joint portion.

Specifically, the elastic hoop 3 may be an O-ring made of rubber, and by the arrangement of the elastic hoop 3, the plurality of expansion blocks 2 can be reset and contracted in opposite directions when no external force is applied.

In this embodiment, the limiting component is a limiting pin 9, a pin slot 81 is longitudinally provided on a side wall of the expansion block, one end of the limiting pin 9 is fixed on the bracket 1, the other end of the limiting pin extends into the pin slot 81 in a radial direction, and an insertion hole 12 for inserting the limiting pin 9 is provided on the bracket 1.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. Stator centre gripping tool, its characterized in that: including support (1), expansion block (2) and expansion taper shaft (8), support (1) are provided with first vertical logical groove (11) and radial spout (13) with first vertical logical groove (11) intercommunication, expansion taper shaft (8) are arranged in first vertical logical groove (11), radial spout (13) set up to a plurality of radial spout (13) are along the circumference annular array setting of first vertical logical groove (11), radial sliding connection of expansion block (2) along first vertical logical groove (11) is in radial spout (13), expansion block (2) are the same with radial spout (13) quantity, expansion block (2) are close to one side of expansion taper shaft (8) be provided with expansion taper shaft (8) looks adaptation inclined plane, the one end of support (1) is provided with and is used for preventing expansion taper shaft (8) circumference pivoted spacing subassembly, the other end of support (1) is provided with and is used for driving expansion taper shaft (8) vertical lift's circumference annular array setting, a plurality of expansion block (2) are configured when expansion taper shaft (8) are expanded in opposite directions, expansion block (2) are expanded in opposite directions or expansion taper shaft (8) are configured.

2. The stator clamping jig of claim 1, wherein: the driving assembly (4) comprises a pressing seat (31), a pressing plate (32), a connecting rod (34) and an adjusting nut (33), wherein a second longitudinal through groove is formed in the pressing seat (31), the second longitudinal through groove is coaxial with the first longitudinal through groove (11), the diameter of the second longitudinal through groove is smaller than that of the first longitudinal through groove (11), the connecting rod (34) penetrates through the second longitudinal through groove and is fixedly connected with the expansion taper shaft (8), a rotating groove is formed in one end, far away from the expansion taper shaft (8), of the pressing seat (31), a rotating part (331) is formed in the outer peripheral wall of the adjusting nut (331) in an outward protruding mode, the rotating part (331) is rotatably connected in the rotating groove, the pressing seat (31) is provided with a pressing plate (32) used for limiting the rotating part (331) in the rotating groove, the connecting rod (34) is provided with a threaded section, the threaded section is in threaded connection with the adjusting nut (33), and one end, far away from the expansion taper shaft (8), of the connecting rod (34) is fixedly connected with the lifting ring (5).

3. The stator clamping jig of claim 2, wherein: the connecting rod (34) is sleeved with a spring (6) between the expansion taper shaft (8) and the pressing seat (31).

4. The stator clamping jig of claim 1, wherein: the novel expansion bracket is characterized in that an elastic hoop (3) used for hooping and shrinking a plurality of expansion blocks (2) is arranged on the bracket (1), hooping grooves are respectively formed in the side walls of two ends of the bracket (1), a clamping portion is arranged at one end, close to the hooping grooves, of each expansion block (2), and the elastic hoop (3) is hooped on the clamping portion.

5. The stator clamping jig of claim 1, wherein: the limiting component is a limiting pin (9), a pin groove (81) is longitudinally formed in the side wall of the expansion block, one end of the limiting pin (9) is fixed on the support (1), and the other end of the limiting pin radially extends into the pin groove (81).