CN113799013B

CN113799013B - Anchor clamps for mechanical maintenance

Info

Publication number: CN113799013B
Application number: CN202111062873.1A
Authority: CN
Inventors: 万志辉; 黄浩; 张文亮; 熊欣
Original assignee: Wuhan Marine Machinery Plant Co Ltd
Current assignee: Wuhan Marine Machinery Plant Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-11-15
Anticipated expiration: 2041-09-10
Also published as: CN113799013A

Abstract

A clamp for mechanical maintenance comprises a base, a rotating motor, a rotating disk and a clamping device. The base is of a disc structure, a rotating motor is arranged in the middle of the base, the rotating disc is arranged in a rotating groove formed in the base, the number of the rotating discs is two, clamping devices are arranged on the rotating discs, the two clamping devices arranged on the base are of mirror symmetry structures, and the clamping devices clamp workpieces through arc-shaped clamps, hinged plates and supporting plates arranged on the clamping devices. The design can clamp the workpiece to be clamped from different angles, the application range of the clamp is effectively enlarged, the workpiece to be clamped in different shapes can be matched, and the flexibility degree of the system is effectively improved.

Description

Anchor clamps for mechanical maintenance

Technical Field

The invention relates to a clamp, in particular to a clamp for mechanical maintenance, which is particularly suitable for the clamp for mechanical maintenance with wide application range and high flexibility.

Background

The jig is a device for fixing a processing object to take a correct position to receive construction or inspection in a machine manufacturing process. In a broad sense, the apparatus used to quickly, conveniently and safely mount a workpiece in any process in a process may be referred to as a jig. When a workpiece is machined, the workpiece must be firmly fixed and clamped, most of the currently used clamps are single-face fixed clamping clamps which are manually clamped, and the clamping faces of the clamps are arranged in one-to-one correspondence with the workpiece to be clamped.

Although the fixture can meet the requirements of positioning and fixing the workpiece in the machining process, the fixture still has the following defects:

1. the clamping surface and the workpiece to be clamped are in one-to-one correspondence, the clamping surface cannot be adjusted according to the size, the shape and the working requirement of the workpiece, and the clamp needs to be replaced repeatedly when different workpieces are clamped, so that the working efficiency is affected.

2. The clamps are fixed on the ground, the relative positions of the clamps which are used in a matched mode are fixed, and the size of a workpiece which can be clamped is limited.

3. The clamp needs an operator to manually clamp, the working efficiency is influenced, and meanwhile, the power of the clamp system is limited, and the clamping force is small.

Disclosure of Invention

The invention aims to overcome the defects of small application range and low flexibility degree in the prior art, and provides a clamp for mechanical maintenance, which can be matched with workpieces of different specifications under various working requirements.

In order to achieve the above purpose, the technical solution of the invention is as follows:

a mechanical service fixture, the fixture comprising a clamping device, the clamping device comprising: the device comprises an upper clamping part, a lower clamping part, a vertical plate, an arc-shaped sliding groove, a first gear, a first motor and a power output gear; go up the arc spout sliding fit that sets up on each and a riser in the both ends of clamping part, the riser all sets up perpendicularly on the holding surface, go up the dead lever that the both ends of clamping part set up still through its both ends and clamping part fixed connection down, the power take off gear engagement on clamping part and the first motor that sets up through it on down, the power take off gear and the last clamping part transmission cooperation of first motor, upward be provided with scalable centre gripping arm on the clamping part, fixed the centre gripping platform that is provided with down on the clamping part, go up the coaxial setting of centre gripping platform that sets up on scalable centre gripping arm and the lower clamping part that sets up on the clamping part.

The upper clamping portion includes: the device comprises an arc-shaped sliding plate, a cross-shaped boss, a fixed rod, a second electric telescopic rod and an arc-shaped clamp; arc slide respectively through the cross boss that its both ends set up with the arc spout sliding fit who sets up on a riser, the riser all sets up perpendicularly on the holding surface, the spacing groove is spacing cooperation with the cross boss, the bottom of arc slide and second electric telescopic handle's top fixed connection, second electric telescopic handle's bottom is provided with arc anchor clamps, the U template normal running fit that arc anchor clamps pass through rotary rod and second electric telescopic handle bottom setting, the arc slide is still through the both ends fixed connection of the dead lever of its both ends setting and lower clamping part.

The lower clamping portion includes: the rotary shaft, the transverse plate, the second sliding chute, the sliding rod, the sliding block, the third electric telescopic rod, the hinged plate and the fixed plate; still be provided with the diaphragm on the rotation axis, the diaphragm is fixed as an organic whole with the rotation axis, two second spouts have been seted up on the diaphragm, the inside of second spout all is provided with the slide bar, slide bar respectively with a slider sliding fit, the top of slider all with a third electric telescopic handle's bottom fixed connection, the top of third electric telescopic handle respectively articulates with the bottom of a articulated slab, the top of diaphragm still is provided with the fixed plate, the fixed plate sets up between two second spouts, the one end of articulated slab near the fixed plate is articulated with the top of fixed plate, the both ends of rotation axis and the dead lever fixed connection that arc slide both ends set up, dead lever and second electric telescopic handle parallel arrangement, the rotation axis sets up with second electric telescopic handle is perpendicular, arc slide and rotation axis normal running fit, the rotation axis is through setting up the power take off gear meshing on the first gear and the first motor of its one end, the power take off gear and the arc slide transmission cooperation of first motor.

The fixture further comprises a rotating disc, the clamping device is arranged on one side, close to the edge, of the top of the rotating disc, the rotating disc is arranged in a rotating groove formed in the base, the rotating disc is in rotating fit with the rotating groove, the base is of a flat plate structure, a rotating motor is arranged in the middle of the base, a power output shaft gear is arranged on a power output shaft of the rotating motor, and the power output shaft gear is meshed with teeth arranged on the side face of the rotating disc.

The improved rotary table is characterized in that a cross beam is arranged on the base, the cross beam is arranged between two rotary grooves, the two ends of the cross beam are respectively fixedly connected with the top of the base through a connecting column, the bottom of the cross beam is fixedly connected with the top of the rotary motor, the base is further provided with two rotary grooves, the rotary grooves are symmetrically arranged on the two sides of the rotary motor, a rotary disk is arranged in each rotary groove, clamping devices are arranged on the rotary disk, and the two clamping devices arranged on the base are of mirror symmetry structures.

The clamping device comprises two first electric telescopic rods, the bottoms of the first electric telescopic rods are fixedly connected with the bottom of the rotating disc, the top ends of the first electric telescopic rods are fixedly connected with the bottom of the supporting plate, two sides of the supporting plate are fixedly connected with T-shaped sliding blocks respectively, and the T-shaped sliding blocks are arranged in first sliding grooves formed in a vertical plate.

The upper portion of the side wall of the rotating disc is provided with teeth, the lower portion of the side wall of the rotating disc is provided with a limiting ring, and the upper edge of the rotating groove is provided with a flanging matched with the limiting ring.

The both ends of rotation axis are provided with the connecting block, connecting block and the spacing cooperation of riser, the rotation axis is through the connecting block and the dead lever fixed connection that its both sides set up.

Two fixing plates are arranged at the top of the transverse plate, a hinge shaft is arranged between the two fixing plates, and the hinge shaft is in rotating fit with the hinge plate.

The sliding rod is sleeved with a spring, the spring is in compression fit with the sliding block, and the spring is in compression fit with the side wall of the second sliding groove.

Compared with the prior art, the invention has the beneficial effects that:

1. the clamp for mechanical maintenance of the invention utilizes the arc-shaped clamp and the hinged plate to form the main clamping surface, the arc-shaped clamp and the hinged plate can be driven by the motor to rotate along the rotating shaft, and simultaneously, the support plate parallel to the ground is utilized as the auxiliary clamping surface to assist the main clamping surface to support the workpiece to be clamped, so that the clamp can clamp the workpiece to be clamped at different angles, and the application range of the clamp to the workpieces to be clamped with different shapes is effectively expanded. Therefore, the clamp can clamp the workpiece to be clamped from different angles, and the application range of the clamp is effectively enlarged.

2. The included angle between the hinged plates in the clamp for mechanical maintenance can be changed under the driving of the electric telescopic rod, and the hinged plates with different included angles can be matched with workpieces to be clamped with different shapes, so that the hinged plates can effectively support the workpieces to be clamped with different specifications, and the flexibility degree of the system is effectively improved. Therefore, the electric telescopic rod drives the hinged plate to work, so that the system can be matched with workpieces to be clamped in different shapes, and the flexibility degree of the system is effectively improved.

3. The clamping devices in the clamp for mechanical maintenance are arranged on the rotating disk, the rotating disk can be driven by the rotating motor to rotate on the base, the rotating disk can drive the clamping devices to move after rotating, and the distance between the two clamping devices is changed, so that the size range of the workpiece to be clamped, which is applicable to the clamp, is effectively expanded. Therefore, the design can change the distance between the matched clamping devices, and effectively enlarge the size of the workpiece to be clamped, which is applicable to the invention.

4. The arc-shaped clamp, the hinged plate and the supporting plate in the clamp for mechanical maintenance are all driven by the electric telescopic rod, so that the clamping work does not need to be carried out manually by an operator, meanwhile, the power of the electric telescopic rod is higher, the output clamping distance is larger, the working efficiency can be effectively improved, and the clamping force is increased. Therefore, this design can carry out centre gripping work through electric telescopic handle drive, effectively improves work efficiency, increases the clamping-force simultaneously.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a schematic structural view in embodiment 1 of the present invention.

Fig. 4 is a schematic structural view in embodiment 2 of the present invention.

Fig. 5 is a schematic structural view in embodiment 3 of the present invention.

In the figure: the clamping device comprises a base 1, a rotating groove 11, a cross beam 12, a flanging 13, a rotating motor 2, a power output shaft gear 21, a rotating disc 3, teeth 31, a limiting ring 32, a clamping device 4, a first electric telescopic rod 41, a supporting plate 42, a T-shaped sliding block 43, a vertical plate 44, a first sliding groove 45, an arc-shaped sliding groove 46, a limiting groove 461, an arc-shaped sliding plate 47, a cross boss 471, a fixed rod 48, a rotating shaft 49, an upper clamping part 5, a first gear 50, a first motor 51, a power output gear 52, a second electric telescopic rod 53, an arc-shaped clamp 54, a rotating rod 541, a U-shaped plate 542, a transverse plate 55, a second sliding groove 56, a sliding rod 57, a sliding block 571, a hinge shaft 572, a spring 573, a third electric telescopic rod 58, a hinged plate 59, a lower clamping part 6, a fixed plate 60 and a connecting block 61.

Detailed Description

The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.

Referring to fig. 1 to 5, a jig for mechanical maintenance includes a holding device 4, and the holding device 4 includes: the clamping device comprises an upper clamping part 5, a lower clamping part 6, a vertical plate 44, an arc-shaped sliding groove 46, a first gear 50, a first motor 51 and a power output gear 52; go up arc spout 46 sliding fit that sets up on the both ends of clamping part 5 respectively and a riser 44, riser 44 all sets up perpendicularly on the holding surface, go up the dead lever that the both ends of clamping part 5 set up still through its both ends and clamping part 6 fixed connection down, clamping part 6 meshes through power take off gear 52 on first gear 50 and the first motor 51 that sets up on it down, power take off gear 52 and the 5 transmission cooperation of last clamping part of first motor 51, upward be provided with scalable centre gripping arm on the clamping part 5, the fixed centre gripping platform that is provided with on the clamping part 6 down, the coaxial setting of centre gripping platform that sets up on the scalable centre gripping arm that sets up on the last clamping part 5 and the lower clamping part 6.

The upper clamp 5 includes: the arc-shaped sliding plate 47, the cross boss 471, the fixing rod 48, the second electric telescopic rod 53 and the arc-shaped clamp 54; arc slide 47 respectively through the cross boss 471 that its both ends set up with the arc spout 46 sliding fit who sets up on a riser 44, riser 44 all sets up perpendicularly on the holding surface, spacing groove 461 and cross boss 471 are spacing cooperation, arc slide 47's bottom and second electric telescopic handle 53's top fixed connection, second electric telescopic handle 53's bottom is provided with arc anchor clamps 54, arc anchor clamps 54 pass through the U template 542 normal running fit that rotary rod 541 and second electric telescopic handle 53 bottom set up, arc slide 47 still through the dead lever 48 of its both ends setting and the both ends fixed connection of lower clamping part 6.

The lower clip portion 6 includes: a rotating shaft 49, a transverse plate 55, a second sliding chute 56, a sliding rod 57, a sliding block 571, a third electric telescopic rod 58, a hinge plate 59 and a fixing plate 60; the rotating shaft 49 is further provided with a transverse plate 55, the transverse plate 55 and the rotating shaft 49 are fixed into a whole, the transverse plate 55 is provided with two second sliding grooves 56, sliding rods 57 are arranged inside the second sliding grooves 56, each sliding rod 57 is in sliding fit with one sliding block 571, the top of each sliding block 571 is fixedly connected with the bottom end of one third electric telescopic rod 58, the top ends of the third electric telescopic rods 58 are hinged with the bottom of one hinge plate 59, the top of the transverse plate 55 is further provided with a fixed plate 60, the fixed plate 60 is arranged between the two second sliding grooves 56, one end of each hinge plate 57 close to the fixed plate 60 is hinged with the top end of the fixed plate 60, two ends of the rotating shaft 49 are fixedly connected with fixed rods 48 arranged at two ends of an arc-shaped sliding plate 47, the fixed rods 48 are arranged in parallel with the second electric telescopic rods 53, the rotating shaft 49 is vertically arranged with the second electric telescopic rods 53, the arc-shaped sliding plate 47 is in rotating fit with the rotating shaft 49, the rotating shaft 49 is engaged with power output gears 52 on the first motor 51 through first gears 50 arranged at one end of the rotating shaft 49, and the power output gears 52 of the first motor 51 are engaged with the arc-shaped sliding plates 47.

The fixture further comprises a rotary disk 3, the clamping device 4 is arranged on one side of the top close to the edge of the rotary disk 3, the rotary disk 3 is arranged in a rotary groove 11 formed in the base 1, the rotary disk 3 is in rotary fit with the rotary groove 11, the base 1 is of a flat plate structure, the rotary motor 2 is arranged in the middle of the base 1, a power output shaft gear 21 is arranged on a power output shaft of the rotary motor 2, and the power output shaft gear 21 is meshed with teeth 31 arranged on the side face of the rotary disk 3.

The utility model discloses a rotary motor, including base 1, crossbeam 12, two revolving chutes 11, a spliced pole and base 1, crossbeam 12 sets up between two revolving chutes 11, the top fixed connection of crossbeam 12's both ends through a spliced pole and base 1 respectively, the bottom of crossbeam 12 and the top fixed connection of rotating electrical machines 2, two revolving chutes 11 have still been seted up on the

base

1, 11 symmetrical arrangement in the both sides of rotating electrical machines 2 of revolving chutes, all be provided with rotary disk 3 in the revolving chutes 11, all be provided with clamping device 4 on the rotary disk 3, two clamping device 4 that set up on the base 1 are the mirror symmetry structure.

The clamping device 4 comprises two first electric telescopic rods 41, the bottom of each first electric telescopic rod 41 is fixedly connected with the bottom of the rotating disc 3, the top end of each first electric telescopic rod 41 is fixedly connected with the bottom of the supporting plate 42, two sides of each supporting plate 42 are fixedly connected with a T-shaped sliding block 43, and the T-shaped sliding blocks 43 are arranged in first sliding grooves 45 formed in vertical plates 44.

The upper portion of the side wall of the rotating disc 3 is provided with teeth 31, the lower portion of the side wall of the rotating disc 3 is provided with a limiting ring 32, and the upper edge of the rotating groove 11 is provided with a flanging 13 matched with the limiting ring 32.

The two ends of the rotating shaft 49 are provided with connecting blocks 62, the connecting blocks 62 are in limit fit with the vertical plate 44, and the rotating shaft 49 is fixedly connected with the fixing rod 48 through the connecting blocks 62 arranged on the two sides of the rotating shaft 49.

Two fixing plates 60 are arranged on the top of the transverse plate 55, a hinge shaft 572 is arranged between the two fixing plates 60, and the hinge shaft 572 is in rotating fit with the hinge plate 59.

A spring 573 is sleeved on the sliding rod 57, the spring 573 is in press fit with the sliding block 571, and the spring 573 is in press fit with a side wall of the second sliding chute 56.

The principle of the invention is illustrated as follows:

the rotating disc 3 in the invention can be rotatably matched with the base 1 through a rotating shaft or an end face bearing arranged at the bottom of the rotating disc.

The third electric telescopic rod 58 of the present invention is tightly fitted to the side wall of the second sliding chute 55 by the spring 573, and when the third electric telescopic rod 58 is extended, the angle between the hinge plate 59 and the horizontal plate 55 is increased, and the spring 573 is extended, and when the third electric telescopic rod 58 is shortened, the angle between the hinge plate 59 and the horizontal plate 55 is decreased, and the spring 573 is shortened.

Example 1:

a clamp for mechanical maintenance, the clamp comprising a clamping device 4, the clamping device 4 comprising: the clamping device comprises an upper clamping part 5, a lower clamping part 6, a vertical plate 44, an arc-shaped sliding groove 46, a first gear 50, a first motor 51 and a power output gear 52; the two ends of the upper clamping portion 5 are respectively in sliding fit with arc-shaped sliding grooves 46 formed in a vertical plate 44, the vertical plate 44 is vertically arranged on a supporting surface, the two ends of the upper clamping portion 5 are fixedly connected with the lower clamping portion 6 through fixing rods arranged at the two ends of the upper clamping portion, the lower clamping portion 6 is meshed with a power output gear 52 on a first motor 51 through a first gear 50 arranged on the lower clamping portion 6, the power output gear 52 of the first motor 51 is in transmission fit with the upper clamping portion 5, a telescopic clamping arm is arranged on the upper clamping portion 5, a clamping table is fixedly arranged on the lower clamping portion 6, and the telescopic clamping arm arranged on the upper clamping portion 5 is coaxial with the clamping table arranged on the lower clamping portion 6; the upper clamp 5 includes: the arc-shaped sliding plate 47, the cross boss 471, the fixing rod 48, the second electric telescopic rod 53 and the arc-shaped clamp 54; the arc-shaped sliding plate 47 is in sliding fit with an arc-shaped sliding groove 46 formed in a vertical plate 44 through cross bosses 471 arranged at two ends of the arc-shaped sliding plate, the vertical plate 44 is vertically arranged on a supporting surface, the limiting groove 461 is in limiting fit with the cross bosses 471, the bottom of the arc-shaped sliding plate 47 is fixedly connected with the top end of a second electric telescopic rod 53, an arc-shaped clamp 54 is arranged at the bottom end of the second electric telescopic rod 53, the arc-shaped clamp 54 is in rotating fit with a U-shaped plate 542 arranged at the bottom end of the second electric telescopic rod 53 through a rotating rod 541, and the arc-shaped sliding plate 47 is also fixedly connected with two ends of the lower clamping part 6 through fixing rods 48 arranged at two ends of the arc-shaped sliding plate; the lower clip portion 6 includes: a rotating shaft 49, a transverse plate 55, a second sliding chute 56, a sliding rod 57, a sliding block 571, a third electric telescopic rod 58, a hinge plate 59 and a fixing plate 60; the rotating shaft 49 is further provided with a transverse plate 55, the transverse plate 55 and the rotating shaft 49 are fixed into a whole, the transverse plate 55 is provided with two second sliding grooves 56, sliding rods 57 are arranged inside the second sliding grooves 56, the sliding rods 57 are respectively in sliding fit with a sliding block 571, the top of the sliding block 571 is fixedly connected with the bottom end of a third electric telescopic rod 58, the top end of the third electric telescopic rod 58 is hinged with the bottom of a hinge plate 59, the top of the transverse plate 55 is further provided with a fixing plate 60, the fixing plate 60 is arranged between the two second sliding grooves 56, one end of the hinge plate 57 close to the fixing plate 60 is hinged with the top end of the fixing plate 60, two ends of the rotating shaft 49 are fixedly connected with fixing rods 48 arranged at two ends of an arc-shaped sliding plate 47, the fixing rods 48 are arranged in parallel with the second electric telescopic rod 53, the rotating shaft 49 is vertically arranged with the second electric telescopic rod 53, the arc-shaped sliding plate 47 is in rotating fit with the rotating shaft 49, the rotating shaft 49 is meshed with a power output gear 52 on a first motor 51 through a first gear 50 arranged at one end of the rotating shaft 51, and the power output gear 52 is in transmission fit with the arc-shaped sliding plate 47; the clamp further comprises a rotating disc 3, the clamping device 4 is arranged on one side close to the edge of the top of the rotating disc 3, the rotating disc 3 is arranged in a rotating groove 11 formed in the base 1, the rotating disc 3 is in rotating fit with the rotating groove 11, the base 1 is of a flat plate structure, a rotating motor 2 is arranged in the middle of the base 1, a power output shaft gear 21 is arranged on a power output shaft of the rotating motor 2, and the power output shaft gear 21 is meshed with teeth 31 arranged on the side face of the rotating disc 3; the base 1 is provided with a crossbeam 12, the crossbeam 12 is arranged between two rotating grooves 11, two ends of the crossbeam 12 are respectively and fixedly connected with the top of the base 1 through a connecting column, the bottom of the crossbeam 12 is fixedly connected with the top of the rotating motor 2, the base 1 is also provided with two rotating grooves 11, the rotating grooves 11 are symmetrically arranged at two sides of the rotating motor 2, rotating discs 3 are arranged in the rotating grooves 11, clamping devices 4 are arranged on the rotating discs 3, and the two clamping devices 4 arranged on the base 1 are of mirror symmetry structures; the clamping device 4 comprises two first electric telescopic rods 41, the bottoms of the first electric telescopic rods 41 are fixedly connected with the bottom of the rotating disc 3, the top ends of the first electric telescopic rods 41 are fixedly connected with the bottom of a supporting plate 42, two sides of the supporting plate 42 are respectively fixedly connected with a T-shaped sliding block 43, and the T-shaped sliding blocks 43 are arranged in first sliding grooves 45 formed in a vertical plate 44; the upper part of the side wall of the rotating disc 3 is provided with teeth 31, the lower part of the side wall of the rotating disc 3 is provided with a limiting ring 32, and the upper edge of the rotating groove 11 is provided with a flanging 13 matched with the limiting ring 32; connecting blocks 62 are arranged at two ends of the rotating shaft 49, the connecting blocks 62 are in limit fit with the vertical plate 44, and the rotating shaft 49 is fixedly connected with the fixing rod 48 through the connecting blocks 62 arranged at two sides of the rotating shaft 49; two fixing plates 60 are arranged at the top of the transverse plate 55, a hinge shaft 572 is arranged between the two fixing plates 60, and the hinge shaft 572 is in rotating fit with the hinge plate 59; a spring 573 is sleeved on the sliding rod 57, the spring 573 is in press fit with the sliding block 571, and the spring 573 is in press fit with the side wall of the second sliding chute 56; the transverse plate 55 is vertical to the ground in a clamping state, and the second electric telescopic rod 53 is parallel to the ground in the clamping state; the clamping devices 4 are positioned on the side, close to the rotating motor 2, of the rotating disk in a clamping state; the transverse plate 55 is in press fit with the workpiece to be clamped, the arc-shaped clamp 54 is in press fit with the workpiece to be clamped, and the top of the supporting plate 42 supports the bottom of the workpiece to be clamped.

Example 2:

example 2 is substantially the same as example 1 except that:

the transverse plate 55 is parallel to the ground in a clamping state, and the second electric telescopic rod 53 is vertical to the ground in the clamping state; the clamping devices 4 are positioned at the far rotating motor 2 side of the rotating disc in a clamping state; the transverse plate 55 is in press fit with the workpiece to be clamped, and the arc-shaped clamp 54 is in press fit with the workpiece to be clamped.

Example 3:

example 3 is substantially the same as example 2, except that:

the transverse plate 55 is parallel to the ground in a clamping state, and the second electric telescopic rod 53 is vertical to the ground in the clamping state; the clamping devices 4 are positioned at the far rotating motor 2 side of the rotating disc in a clamping state; the clamping devices 4 are positioned at the far rotating motor 2 side of the rotating disc in a clamping state; the transverse plate 55 is in press fit with the workpiece to be clamped, and the arc-shaped clamp 54 is in press fit with the workpiece to be clamped.

Claims

1. The utility model provides a anchor clamps for mechanical maintenance which characterized in that:

the clamp comprises a clamping device (4), the clamping device (4) comprising: the device comprises an upper clamping part (5), a lower clamping part (6), a vertical plate (44), an arc-shaped sliding groove (46), a first gear (50), a first motor (51) and a power output gear (52); go up arc spout (46) sliding fit that sets up on the both ends of clamping part (5) respectively and a riser (44), riser (44) all set up perpendicularly on the holding surface, go up the dead lever and lower clamping part (6) fixed connection that the both ends of clamping part (5) still set up through its both ends, clamping part (6) are through power take off gear (52) meshing on first gear (50) that set up on it and first motor (51) down, power take off gear (52) and last clamping part (5) transmission cooperation of first motor (51), upward be provided with scalable centre gripping arm on clamping part (5), the fixed centre gripping platform that is provided with down on clamping part (6), go up the coaxial setting of centre gripping platform that sets up on the scalable centre gripping arm that sets up and lower clamping part (6) on clamping part (5).

2. The mechanical maintenance jig according to claim 1, characterized in that:

the upper clamping portion (5) includes: the device comprises an arc-shaped sliding plate (47), a cross boss (471), a fixing rod (48), a second electric telescopic rod (53) and an arc-shaped clamp (54); arc slide (47) respectively through cross boss (471) that its both ends set up with arc spout (46) sliding fit who offers on a riser (44), riser (44) all set up perpendicularly on the holding surface, spacing groove (461) have been seted up on the lateral wall of arc spout (46), spacing groove (461) are spacing cooperation with cross boss (471), the bottom of arc slide (47) and the top fixed connection of second electric telescopic handle (53), the bottom of second electric telescopic handle (53) is provided with arc anchor clamps (54), U template (542) normal running fit that arc anchor clamps (54) set up through rotary rod (541) and second electric telescopic handle (53) bottom, arc slide (47) are still through the both ends fixed connection of dead lever (48) and lower clamping part (6) that its both ends set up.

3. The mechanical service jig of claim 2, wherein:

the lower clamping portion (6) includes: a rotating shaft (49), a transverse plate (55), a second sliding chute (56), a sliding rod (57), a sliding block (571), a third electric telescopic rod (58), a hinge plate (59) and a fixing plate (60); the rotary shaft (49) is further provided with a transverse plate (55), the transverse plate (55) and the rotary shaft (49) are fixed into a whole, the transverse plate (55) is provided with two second sliding grooves (56), sliding rods (57) are arranged inside the second sliding grooves (56), each sliding rod (57) is in sliding fit with one sliding block (571), the top of each sliding block (571) is fixedly connected with the bottom end of one third electric telescopic rod (58), the top ends of the third electric telescopic rods (58) are hinged with the bottom of one hinged plate (59), the top of the transverse plate (55) is further provided with a fixing plate (60), the fixing plate (60) is arranged between the two second sliding grooves (56), one end, close to the fixing plate (60), of each hinged plate (59) is hinged with the top end of the fixing plate (60), two ends of the rotary shaft (49) are fixedly connected with fixing rods (48) arranged at two ends of the arc-shaped sliding plates (47), the fixing rods (48) and the second electric telescopic rods (53) are arranged in parallel, the rotary shaft (49) and the second electric telescopic rod (53) are arranged vertically, the rotary shaft (47) is engaged with one end of a first gear (52) of the rotary shaft (49), and a first gear (52) is arranged at one end of the rotary shaft (49), and a power output gear (52) of the first motor (51) is in transmission fit with the arc-shaped sliding plate (47).

4. The jig for mechanical maintenance according to claim 3, characterized in that:

the fixture further comprises a rotating disk (3), the clamping device (4) is arranged on one side of the top of the rotating disk (3) close to the edge, the rotating disk (3) is arranged in a rotating groove (11) formed in the base (1), the rotating disk (3) is in rotating fit with the rotating groove (11), the base (1) is of a flat plate structure, a rotating motor (2) is arranged in the middle of the base (1), a power output shaft gear (21) is arranged on a power output shaft of the rotating motor (2), and the power output shaft gear (21) is meshed with teeth (31) arranged on the side face of the rotating disk (3).

5. The jig for mechanical maintenance according to claim 4, characterized in that:

crossbeam (12) have been arranged on base (1), crossbeam (12) set up between two swivelling chute (11), the top fixed connection of a spliced pole and base (1) is passed through respectively at the both ends of crossbeam (12), the bottom of crossbeam (12) and the top fixed connection of rotating electrical machines (2), two swivelling chute (11) have still been seted up on base (1), swivelling chute (11) symmetrical arrangement is in the both sides of rotating electrical machines (2), all be provided with rotary disk (3) in swivelling chute (11), all be provided with clamping device (4) on rotary disk (3), two clamping device (4) that set up on base (1) are the mirror symmetry structure.

6. The jig for machine maintenance according to any one of claims 4 or 5, wherein:

the clamping device (4) comprises two first electric telescopic rods (41), the bottoms of the first electric telescopic rods (41) are fixedly connected with the bottom of the rotating disc (3), the top ends of the first electric telescopic rods (41) are fixedly connected with the bottom of the supporting plate (42), two sides of the supporting plate (42) are fixedly connected with a T-shaped sliding block (43), and the T-shaped sliding blocks (43) are arranged in first sliding grooves (45) formed in a vertical plate (44).

7. The jig for mechanical maintenance according to claim 6, characterized in that:

the tooth (31) is arranged on the upper portion of the side wall of the rotating disc (3), the limiting ring (32) is arranged on the lower portion of the side wall of the rotating disc (3), and a flanging (13) matched with the limiting ring (32) is arranged on the upper edge of the rotating groove (11).

8. The jig for mechanical maintenance according to claim 7, characterized in that:

the both ends of rotation axis (49) are provided with connecting block (61), connecting block (61) and riser (44) spacing cooperation, rotation axis (49) are through connecting block (61) and dead lever (48) fixed connection that its both sides were set up.

9. The mechanical service jig of claim 8, wherein:

two fixing plates (60) are arranged at the top of the transverse plate (55), a hinge shaft (572) is arranged between the two fixing plates (60), and the hinge shaft (572) is in rotating fit with the hinge plate (59).

10. The mechanical service jig of claim 9, wherein:

the sliding rod (57) is sleeved with a spring (573), the spring (573) is in press fit with the sliding block (571), and the spring (573) is in press fit with the side wall of the second sliding chute (56).