CN113799013B - Anchor clamps for mechanical maintenance - Google Patents

Abstract

A fixture for mechanical maintenance, comprising a base, a rotating motor, a rotating disk and a clamping device. The base is a disc structure, the middle part of the base is provided with a rotating motor, and the rotating disc is set in a rotating groove opened on the base, and there are two rotating discs, each of which is provided with a clamping device, the two clamping devices set on the base are mirror symmetrical structures, and the clamping devices clamp the workpiece through the arc-shaped clamps, hinge plates and support plates set on them. This design can not only clamp the workpiece to be clamped from different angles, effectively expand the scope of application of the fixture, but also can match different shapes of workpieces to be clamped, effectively improving the flexibility of the system.

Description

A fixture for mechanical maintenance

technical field

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

Background technique

A fixture is a device used to fix the processing object in the process of mechanical manufacturing so that it occupies the correct position for construction or inspection. In a broad sense, the device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture. When processing a workpiece, the workpiece must be fixed and clamped. Most of the clamps currently used are single-sided fixed clamping clamps that are manually clamped. The clamping surface of the clamp is set in one-to-one correspondence with the workpiece to be clamped.

Although this fixture can meet the workpiece positioning and fixing requirements during processing, it still has the following defects:

1. The clamping surface corresponds to the workpiece to be clamped one by one, and cannot be adjusted according to the size, shape and work needs of the workpiece. When clamping different workpieces, it is necessary to replace and replace the fixture repeatedly, which affects work efficiency.

2. The fixture is fixed on the ground, and the relative positions of the matched fixtures are fixed, and the size of the workpiece that can be clamped is limited.

3. The clamp requires the operator to manually perform the clamping operation, which affects work efficiency. At the same time, the power of the clamp system is limited and the clamping force is relatively small.

Contents of the invention

The purpose of the present invention is to overcome the disadvantages of narrow application range and low flexibility in the prior art, and provide a fixture for mechanical maintenance that can match workpieces of different specifications under various work needs.

For realizing above object, technical solution of the present invention is:

A fixture for mechanical maintenance, the fixture includes a clamping device, and the clamping device includes: an upper clamping part, a lower clamping part, a vertical plate, an arc-shaped chute, a first gear, a first motor, a power output gear; the two ends of the upper clamping part are slidably matched with the arc-shaped chute opened on a vertical plate, and the vertical plates are all vertically arranged on the support surface, and the two ends of the upper clamping part are also passed through its The fixed rods arranged at both ends are fixedly connected to the lower clamping part, and the first gear provided on the lower clamping part meshes with the power output gear on the first motor, and the power output gear of the first motor is connected to the upper clamping part. The clamping part is driven and matched, the upper clamping part is provided with a telescopic clamping arm, the lower clamping part is fixedly provided with a clamping platform, and the telescopic clamping arm provided on the upper clamping part is connected with the The clamping table arranged on the lower clamping part is coaxially arranged.

The upper clamping part includes: an arc-shaped slide plate, a cross boss, a fixed rod, a second electric telescopic rod, and an arc-shaped clamp; The arc-shaped chute is slidingly matched, the vertical plates are vertically arranged on the support surface, the limit slot and the cross boss are in position-limiting fit, the bottom of the arc-shaped slide plate is fixed to the top of the second electric telescopic rod connected, the bottom end of the second electric telescopic rod is provided with an arc-shaped clamp, and the arc-shaped clamp rotates and cooperates with the U-shaped plate provided at the bottom end of the second electric telescopic rod through the rotating rod. The fixing rods arranged at both ends are fixedly connected with the two ends of the lower clamping part.

The lower clamping part includes: a rotating shaft, a horizontal plate, a second chute, a sliding rod, a sliding block, a third electric telescopic rod, a hinge plate, and a fixing plate; the rotating shaft is also provided with a horizontal plate, and the The horizontal plate and the rotating shaft are fixed as a whole, and the horizontal plate is provided with two second chute, and the inside of the second chute is provided with a sliding bar, and each of the sliding bars is slidably matched with a slider. The tops of the sliders are all fixedly connected to the bottom end of a third electric telescopic rod, and the top ends of the third electric telescopic rod are respectively hinged with the bottom of a hinged plate, and the top of the horizontal plate is also provided with a fixed plate, so The fixed plate is arranged between the two second slide grooves, one end of the hinged plate near the fixed plate is hinged to the top of the fixed plate, and the two ends of the rotating shaft are fixedly connected with the fixed rods provided at the two ends of the arc-shaped slide plate. The fixed rod is arranged in parallel with the second electric telescopic rod, the rotating shaft is arranged vertically with the second electric telescopic rod, the arc-shaped slide plate is rotatably matched with the rotating shaft, and the rotating shaft passes through the first gear arranged at one end It meshes with the power output gear on the first motor, and the power output gear of the first motor cooperates with the arc-shaped slide plate transmission.

The clamp also includes a rotating disk, the clamping device is arranged on the near edge side of the top of the rotating disk, the rotating disk is arranged in a rotating groove opened on the base, the rotating disk is rotatably matched with the rotating groove, and the The base is a flat plate structure, the middle part of the base is provided with a rotating motor, the power output shaft of the rotating motor is provided with a power output shaft gear, and the power output shaft gear meshes with the teeth provided on the side of the rotating disk.

A crossbeam is arranged on the base, and the crossbeam is arranged between two rotating slots. Both ends of the crossbeam are fixedly connected to the top of the base through a connecting column, and the bottom of the crossbeam is fixedly connected to the top of the rotating motor. , the base is also provided with two rotating slots, the rotating slots are symmetrically arranged on both sides of the rotating motor, a rotating disc is arranged in the rotating slot, and a clamping device is arranged on the rotating disc, so The two clamping devices provided on the base are mirror symmetrical structures.

The clamping device includes two first electric telescopic rods, the bottom of the first electric telescopic rods is fixedly connected to the bottom of the rotating disk, the top end of the first electric telescopic rods is fixedly connected to the bottom of the support plate, and the Both sides of the support plate are respectively fixedly connected with a T-shaped slider, and the T-shaped slider is arranged in the first chute opened on the vertical plate.

The upper part of the side wall of the rotating disc is provided with teeth, the lower part 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 two ends of the rotating shaft are provided with connecting blocks, and the connecting blocks are limitedly matched with the vertical plate, and the rotating shaft is fixedly connected with the fixed rod through the connecting blocks arranged on both sides.

Two fixing plates are arranged on the top of the horizontal plate, and a hinge shaft is arranged between the two fixing plates, and the hinge shaft is rotatably matched with the hinge plate.

A spring is sheathed on the slide bar, and the spring is press fit with the slide block, and the spring is press fit with the side wall of the second chute.

Compared with prior art, the beneficial effect of the present invention is:

1. In a fixture for mechanical maintenance of the present invention, an arc-shaped fixture and a hinged plate are used to form the main clamping surface. The arc-shaped fixture and the hinged plate can be driven by a motor to rotate along the rotation axis, and the present invention utilizes a support plate parallel to the ground As the auxiliary clamping surface, the auxiliary main clamping surface supports the workpiece to be clamped, so that the present invention can clamp the workpiece to be clamped at different angles, effectively expanding the scope of application of the clamp to workpieces to be clamped in different shapes. Therefore, this design can clamp the workpiece to be clamped from different angles, effectively expanding the scope of application of the clamp.

2. The angle between the hinged plates in the mechanical maintenance fixture of the present invention can be changed under the drive of the electric telescopic rod, and the hinged plates with different angles can match workpieces to be clamped with different shapes, so that the hinged plates can be It forms an effective support for workpieces to be clamped in different specifications, and effectively improves the flexibility of the system. Therefore, this design drives the hinged plate to work through the electric telescopic rod, so that the system can match different shapes of workpieces to be clamped, effectively improving the flexibility of the system.

3. The clamping device in a jig for mechanical maintenance of the present invention is arranged on a rotating disk. The rotating disk can be driven to rotate on the base by a rotating motor. After the rotating disk rotates, it can drive the clamping device to move, and change the distance between the two clamping devices. The distance between them effectively expands the size range of workpieces to be clamped applicable to the present invention. Therefore, this design can change the distance between the matching clamping devices, effectively expanding the applicable size of the workpiece to be clamped by the present invention.

4. The expansion and contraction of arc-shaped clamps, hinge plates and support plates in a fixture for mechanical maintenance of the present invention are all driven by electric telescopic rods, which do not require manual clamping work by operators. At the same time, the power of electric telescopic rods is high, and the output The clamping center is larger, which can effectively improve the work efficiency and increase the clamping force at the same time. Therefore, this design can be driven by the electric telescopic rod to carry out the clamping work, which can effectively improve the work efficiency and increase the clamping force at the same time.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is a side view of the present invention.

Fig. 3 is a schematic structural diagram of Embodiment 1 of the present invention.

Fig. 4 is a schematic structural diagram of Embodiment 2 of the present invention.

Fig. 5 is a schematic structural diagram of Embodiment 3 of the present invention.

In the figure: base 1, rotating groove 11, beam 12, flange 13, rotating motor 2, power output shaft gear 21, rotating disk 3, teeth 31, limit ring 32, clamping device 4, first electric telescopic rod 41. Support plate 42, T-shaped slider 43, vertical plate 44, first chute 45, arc-shaped chute 46, limit groove 461, arc-shaped slide plate 47, cross boss 471, fixed rod 48, rotating shaft 49 , the upper clamping part 5, the first gear 50, the first motor 51, the power output gear 52, the second electric telescopic rod 53, the arc clamp 54, the rotating rod 541, the U-shaped plate 542, the horizontal plate 55, the second slide Slot 56, slide bar 57, slide block 571, hinge shaft 572, spring 573, third electric telescopic rod 58, hinge plate 59, lower clamping part 6, fixed plate 60, connecting block 61.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 to Fig. 5, a clamp for mechanical maintenance, the clamp includes a clamping device 4, and the clamping device 4 includes: an upper clamping part 5, a lower clamping part 6, a riser 44, an arc slide Groove 46, first gear 50, first motor 51, power output gear 52; The two ends of described upper clamping part 5 each slide with the arc-shaped chute 46 that offers on a riser 44, and described riser 44 Both ends are vertically arranged on the supporting surface, and the two ends of the upper clamping part 5 are also fixedly connected with the lower clamping part 6 through the fixed rods provided at both ends, and the lower clamping part 6 is fixedly connected with the first clamping part 6 provided on it. The gear 50 meshes with the power output gear 52 on the first motor 51, and the power output gear 52 of the first motor 51 is in transmission cooperation with the upper clamping part 5, and the upper clamping part 5 is provided with a telescopic clamping arm A clamping platform is fixedly arranged on the lower clamping part 6 , and the telescopic clamping arm provided on the upper clamping part 5 is coaxially arranged with the clamping platform provided on the lower clamping part 6 .

The upper clamping part 5 includes: an arc-shaped slide plate 47, a cross boss 471, a fixed rod 48, a second electric telescopic rod 53, and an arc-shaped clamp 54; 471 are slidingly matched with the arc-shaped chute 46 provided on a vertical plate 44, and the vertical plate 44 is vertically arranged on the supporting surface. The bottom of the shaped slide plate 47 is fixedly connected with the top of the second electric telescopic rod 53, and the bottom end of the second electric telescopic rod 53 is provided with an arc-shaped clamp 54, and the arc-shaped clamp 54 is connected with the second electric telescopic rod 541 through the rotating rod 541. The U-shaped plate 542 provided at the bottom end of the rod 53 is rotatably matched, and the arc-shaped sliding plate 47 is also fixedly connected with the two ends of the lower clamping part 6 through the fixed rods 48 provided at both ends thereof.

The lower clamping part 6 includes: a rotating shaft 49, a horizontal plate 55, a second 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 also provided with a horizontal plate 55, the horizontal plate 55 and the rotating shaft 49 are fixed as a whole, the horizontal plate 55 is provided with two second chute 56, and the inside of the second chute 56 is provided with Slide bar 57, described slide bar 57 is respectively slidably matched with a slide block 571, and the top of described slide block 571 is fixedly connected with the bottom end of a third electric telescopic rod 58, and the top end of described third electric telescopic rod 58 Each is hinged with the bottom of a hinged plate 59, and the top of the horizontal plate 55 is also provided with a fixed plate 60, the fixed plate 60 is arranged between the two second slide grooves 56, and the hinged plate 57 is close to the fixed plate 60 One end of one end is hinged with the top of the fixed plate 60, and the two ends of the rotating shaft 49 are fixedly connected with the fixed rods 48 provided at the two ends of the arc-shaped slide plate 47, and the fixed 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, and the arc-shaped slide plate 47 is rotatably matched with the rotating shaft 49, and the rotating shaft 49 is output through the first gear 50 arranged at one end and the power output of the first motor 51. The gear 52 is meshed, and the power output gear 52 of the first motor 51 is in transmission cooperation with the arc-shaped slide plate 47 .

The clamp also includes a rotating disk 3, the clamping device 4 is arranged on the near edge side of the top of the rotating disk 3, the rotating disk 3 is arranged in the rotating groove 11 provided on the base 1, and the rotating disk 3 and Rotating groove 11 rotates and fits, and described base 1 is flat plate structure, and the middle part of described base 1 is provided with rotary motor 2, and the power output shaft of described rotary motor 2 is provided with power output shaft gear 21, and described power output shaft gear 21 meshes with the teeth 31 provided on the side of the rotating disc 3 .

A crossbeam 12 is arranged on the base 1, and the crossbeam 12 is arranged between two rotating grooves 11. Both ends of the crossbeam 12 are fixedly connected to the top of the base 1 through a connecting column respectively, and the bottom of the crossbeam 12 It is fixedly connected with the top of the rotating motor 2, and two rotating slots 11 are opened on the base 1, and the rotating slots 11 are symmetrically arranged on both sides of the rotating motor 2, and the rotating discs 3 are arranged in the rotating slots 11 , the rotating disc 3 is provided with a clamping device 4, and the two clamping devices 4 provided on the base 1 are mirror-image symmetrical structures.

The clamping device 4 includes two first electric telescopic rods 41, the bottom of the first electric telescopic rods 41 is fixedly connected with the bottom of the rotating disk 3, and the top of the first electric telescopic rods 41 is connected to the bottom of the support plate 42. The bottom is fixedly connected, and both sides of the support plate 42 are respectively fixedly connected with a T-shaped slider 43 , and the T-shaped slider 43 is arranged in the first chute 45 provided on the vertical plate 44 .

Teeth 31 are provided on the upper part of the side wall of the rotating disk 3 , a limiting ring 32 is provided on the lower part of the side wall of the rotating disk 3 , and a flange that matches the limiting ring 32 is provided on the upper edge of the rotating groove 11 13.

Both ends of the rotating shaft 49 are provided with connecting blocks 62 , the connecting blocks 62 are limitedly matched with the vertical plate 44 , and the rotating shaft 49 is fixedly connected with the fixed rod 48 through the connecting blocks 62 provided on both sides thereof.

Two fixing plates 60 are arranged on the top of the horizontal plate 55 , and a hinge shaft 572 is arranged between the two fixing plates 60 , and the hinge shaft 572 is rotatably engaged with the hinge plate 59 .

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

Principle of the present invention is described as follows:

The rotating disk 3 in the present invention can be rotatably matched with the base 1 through a rotating shaft or an end bearing provided at the bottom thereof.

The third electric telescopic rod 58 in the present invention presses and fits with the side wall of the second chute 55 through the spring 573. When the third electric telescopic rod 58 is stretched, the angle between the hinge plate 59 and the horizontal plate 55 becomes Large, the spring 573 stretches, and when the third electric telescopic rod 58 shortens, the angle between the hinge plate 59 and the horizontal plate 55 becomes smaller, and the spring 573 shortens.

Example 1:

A fixture for mechanical maintenance, the fixture includes a clamping device 4, and the clamping device 4 includes: an upper clamping part 5, a lower clamping part 6, a vertical plate 44, an arc-shaped chute 46, and a first gear 50 , the first motor 51, the power output gear 52; the two ends of the upper clamping part 5 are slidably matched with the arc-shaped chute 46 provided on a vertical plate 44, and the vertical plates 44 are all vertically arranged on the supporting surface , the two ends of the upper clamping part 5 are also fixedly connected with the lower clamping part 6 through the fixed rods provided at both ends, and the lower clamping part 6 is connected with the first motor 51 through the first gear 50 provided thereon The power output gear 52 on the top is meshed, and the power output gear 52 of the first motor 51 is in transmission cooperation with the upper clamping part 5. The upper clamping part 5 is provided with a retractable clamping arm, and the lower clamping part 6 is fixedly provided with a clamping platform, and the telescopic clamping arm provided on the upper clamping part 5 is coaxially arranged with the clamping platform provided on the lower clamping part 6; the upper clamping part 5 includes: Shaped slide plate 47, cross boss 471, fixed bar 48, second electric telescopic rod 53, arc fixture 54; Described arc slide plate 47 respectively connects with the cross boss 471 that offers on a vertical plate 44 by its two ends The arc-shaped chute 46 is slidably matched, and the vertical plates 44 are all vertically arranged on the supporting surface. The position-limiting groove 461 and the cross boss 471 are space-limiting cooperation. The top end of the rod 53 is fixedly connected, and the bottom end of the second electric telescopic rod 53 is provided with an arc-shaped clamp 54, and the arc-shaped clamp 54 is connected to the U-shaped plate 542 provided at the bottom end of the second electric telescopic rod 53 through the rotating rod 541 Rotate fit, described arc slide plate 47 is also fixedly connected with the two ends of lower clamping part 6 through the fixed rod 48 that its two ends are provided with; Described lower clamping part 6 comprises: rotating shaft 49, horizontal plate 55, the second Chute 56, slide bar 57, slide block 571, the 3rd electric telescoping link 58, hinged plate 59, fixed plate 60; Also be provided with transverse plate 55 on described rotating shaft 49, described transverse plate 55 is fixed with rotating shaft 49 As a whole, the horizontal plate 55 is provided with two second chute 56, and the inside of the second chute 56 is provided with a slide bar 57, and each of the slide bar 57 is slidably matched with a slide block 571, so that The tops of the sliders 571 are all fixedly connected to the bottom end of a third electric telescopic rod 58, and the top ends of the third electric telescopic rod 58 are respectively hinged with the bottom of a hinged plate 59, and the top of the horizontal plate 55 is also provided with Fixed plate 60 is arranged, and described fixed plate 60 is arranged between two second slide grooves 56, and one end of described hinged plate 57 near fixed plate 60 is hinged with the top end of fixed plate 60, and the two ends of described rotating shaft 49 and The fixed rod 48 that arc-shaped slide plate 47 two ends is provided with is fixedly connected, and described fixed rod 48 is arranged in parallel with second electric telescopic rod 53, and described rotating shaft 49 is vertically arranged with second electric telescopic rod 53, and described arc-shaped slide plate 47 Cooperate with the rotating shaft 49 in rotation, the rotating shaft 49 meshes with the power output gear 52 on the first motor 51 through the first gear 50 arranged at one end thereof, the power output gear 5 of the first motor 51 2 and arc-shaped slide plate 47 for transmission and cooperation; the clamp also includes a rotating disk 3, the clamping device 4 is arranged on the side near the edge of the top of the rotating disk 3, and the rotating disk 3 is arranged on the rotating groove opened on the base 1 11, the rotating disk 3 is rotatably matched with the rotating groove 11, the base 1 is a flat plate structure, the middle part of the base 1 is provided with a rotating motor 2, and the power output shaft of the rotating motor 2 is provided with a power output shaft Gear 21, the power output shaft gear 21 meshes with the teeth 31 provided on the side of the rotating disk 3; a crossbeam 12 is arranged on the base 1, and the crossbeam 12 is arranged between two rotating grooves 11, and the crossbeam 12 The two ends of the beam are respectively fixedly connected to the top of the base 1 through a connecting column, the bottom of the beam 12 is fixedly connected to the top of the rotating motor 2, and the base 1 is also provided with two rotating slots 11, the rotating slots 11 Symmetrically arranged on both sides of the rotating motor 2, a rotating disk 3 is arranged in the rotating groove 11, a clamping device 4 is arranged on the rotating disk 3, and two clamping devices 4 arranged on the base 1 It is a mirror image symmetrical structure; the clamping device 4 includes two first electric telescopic rods 41, the bottom of the first electric telescopic rods 41 is fixedly connected with the bottom of the rotating disk 3, and the top of the first electric telescopic rods 41 Fixedly connected with the bottom of the support plate 42, each of the two sides of the support plate 42 is fixedly connected with a T-shaped slider 43, and the T-shaped slider 43 is arranged in the first chute 45 provided on the vertical plate 44; Teeth 31 are provided on the upper part of the side wall of the rotating disk 3 , a limiting ring 32 is provided on the lower part of the side wall of the rotating disk 3 , and a flanging matched with the limiting ring 32 is provided on the upper edge of the rotating groove 11 13. The two ends of the rotating shaft 49 are provided with connecting blocks 62, and the connecting blocks 62 are limitedly matched with the vertical plate 44, and the rotating shaft 49 is fixedly connected with the fixed rod 48 through the connecting blocks 62 provided on both sides thereof; The top of the horizontal plate 55 is provided with two fixing plates 60, and a hinge shaft 572 is arranged between the two fixing plates 60, and the hinge shaft 572 is rotatably matched with the hinge plate 59; There is a spring 573, the spring 573 is press fit with the slider 571, and the spring 573 is press fit with the side wall of the second chute 56; the horizontal plate 55 is perpendicular to the ground in the clamped state, and the second The two electric telescopic rods 53 are parallel to the ground in the clamping state; the clamping device 4 is located at the side of the rotating disk near the rotating motor 2 in the clamping state; the horizontal plate 55 is press fit with the workpiece to be clamped, and the The arc clamp 54 is press fit with the workpiece to be clamped, and the top of the support plate 42 supports the bottom of the workpiece to be clamped.

Example 2:

Embodiment 2 is basically the same as Embodiment 1, and its difference is:

The horizontal plate 55 is parallel to the ground in the clamped state, and the second electric telescopic rod 53 is perpendicular to the ground in the clamped state; side; the horizontal plate 55 is press-fitted with the workpiece to be clamped, and the arc-shaped clamp 54 is press-fitted with the workpiece to be clamped.

Example 3:

Embodiment 3 is basically the same as Embodiment 2, and its difference is:

The horizontal plate 55 is parallel to the ground in the clamped state, and the second electric telescopic rod 53 is perpendicular to the ground in the clamped state; side; the clamping device 4 is located on the side of the rotating disk away from the rotating motor 2 in the clamping state; the horizontal plate 55 is press fit with the workpiece to be clamped, and the arc clamp 54 is press fit with the workpiece to be clamped.

Claims (10)

1. A fixture for mechanical maintenance, characterized in that: The clamp includes a clamping device (4), and the clamping device (4) includes: an upper clamping part (5), a lower clamping part (6), a vertical plate (44), and an arc-shaped chute (46) , the first gear (50), the first motor (51), the power output gear (52); the two ends of the upper clamping part (5) are respectively connected with the arc-shaped chute ( 46) Sliding fit, the vertical plates (44) are vertically set on the supporting surface, and the two ends of the upper clamping part (5) are also fixed to the lower clamping part (6) by the fixing rods provided at both ends The lower clamping part (6) meshes with the power output gear (52) on the first motor (51) through the first gear (50) provided on it, and the power output of the first motor (51) The gear (52) is in transmission cooperation with the upper clamping part (5), the upper clamping part (5) is provided with a telescopic clamping arm, and the lower clamping part (6) is fixedly provided with a clamping platform, The telescopic clamping arm provided on the upper clamping part (5) is arranged coaxially with the clamping platform provided on the lower clamping part (6). 2. A fixture for mechanical maintenance according to claim 1, characterized in that: The upper clamping part (5) includes: an arc-shaped slide plate (47), a cross boss (471), a fixed rod (48), a second electric telescopic rod (53), and an arc-shaped clamp (54); the arc The cross bosses (471) provided at both ends of the sliding plate (47) are slidably matched with the arc-shaped chute (46) provided on a vertical plate (44), and the vertical plates (44) are vertically arranged on the support On the surface, a limit slot (461) is provided on the side wall of the arc-shaped chute (46). The bottom of 47) is fixedly connected to the top end of the second electric telescopic rod (53), and the bottom end of the second electric telescopic rod (53) is provided with an arc-shaped clamp (54), and the arc-shaped clamp (54) is rotated The rod (541) rotates and cooperates with the U-shaped plate (542) set at the bottom end of the second electric telescopic rod (53), and the arc-shaped slide plate (47) is also clamped with the lower end by the fixed rods (48) set at both ends. The two ends of part (6) are fixedly connected. 3. A fixture for mechanical maintenance according to claim 2, characterized in that: The lower clamping part (6) includes: a rotating shaft (49), a horizontal plate (55), a second chute (56), a sliding rod (57), a slider (571), a third electric telescopic rod (58 ), a hinged plate (59), a fixed plate (60); the rotating shaft (49) is also provided with a horizontal plate (55), and the horizontal plate (55) and the rotating shaft (49) are fixed as one, and the The horizontal plate (55) is provided with two second chute (56), and the inside of the second chute (56) is provided with a slide bar (57), and each of the slide bar (57) is connected with a slider (571) sliding fit, the tops of the sliders (571) are fixedly connected with the bottom end of a third electric telescopic rod (58), and the top ends of the third electric telescopic rods (58) are respectively connected with a hinged plate ( 59) is hinged at the bottom, the top of the horizontal plate (55) is also provided with a fixed plate (60), the fixed plate (60) is set between the two second chute (56), the hinged plate ( 59) One end near the fixed plate (60) is hinged to the top end of the fixed plate (60), and the two ends of the rotating shaft (49) are fixedly connected to the fixed rods (48) provided at both ends of the arc-shaped slide plate (47). The fixed rod (48) is arranged parallel to the second electric telescopic rod (53), the rotating shaft (49) is vertically arranged to the second electric telescopic rod (53), and the arc-shaped slide plate (47) is connected to the rotating shaft (49) ) rotation, the rotating shaft (49) meshes with the power output gear (52) on the first motor (51) through the first gear (50) arranged at one end thereof, and the power of the first motor (51) Output gear (52) cooperates with arc slide plate (47) transmission. 4. A fixture for mechanical maintenance according to claim 3, characterized in that: The clamp also includes a rotating disk (3), the clamping device (4) is arranged on the side near the edge of the top of the rotating disk (3), and the rotating disk (3) is arranged on the rotating disk provided on the base (1). In the groove (11), the rotating disk (3) is rotated and matched with the rotating groove (11), the base (1) is a flat plate structure, and the middle part of the base (1) is provided with a rotating motor (2). A power output shaft gear (21) is arranged on the power output shaft of the rotary electric machine (2), and the power output shaft gear (21) meshes with teeth (31) provided on the side of the rotating disk (3). 5. A clamp for mechanical maintenance according to claim 4, characterized in that: A crossbeam (12) is arranged on the base (1), and the crossbeam (12) is arranged between two rotating slots (11). Both ends of the crossbeam (12) are connected to the base (1) through a connecting column ), the bottom of the beam (12) is fixedly connected to the top of the rotating motor (2), and the base (1) is also provided with two rotating slots (11), the rotating slots (11) Symmetrically arranged on both sides of the rotating motor (2), the rotating disc (3) is arranged in the rotating groove (11), the clamping device (4) is arranged on the rotating disc (3), and the base The two clamping devices (4) provided on (1) are mirror symmetrical structures. 6. A clamp for mechanical maintenance according to any one of claims 4 or 5, characterized in that: The clamping device (4) includes two first electric telescopic rods (41), the bottom of the first electric telescopic rods (41) is fixedly connected with the bottom of the rotating disk (3), and the first electric telescopic rods The top of (41) is fixedly connected to the bottom of the support plate (42), and both sides of the support plate (42) are respectively fixedly connected with a T-shaped slider (43), and the T-shaped slider (43) is arranged on In the first chute (45) that offers on the riser (44). 7. A fixture for mechanical maintenance according to claim 6, characterized in that: Teeth (31) are provided on the upper part of the side wall of the rotary disc (3), a limit ring (32) is provided on the lower part of the side wall of the rotary disc (3), and a limit ring (32) is provided on the upper edge of the rotary slot (11). The flanging (13) matched with the stop ring (32). 8. A fixture for mechanical maintenance according to claim 7, characterized in that: Both ends of the rotating shaft (49) are provided with connecting blocks (61), and the connecting blocks (61) are limitedly matched with the vertical plate (44), and the rotating shaft (49) passes through the connecting blocks arranged on both sides. (61) is fixedly connected with fixed rod (48). 9. A fixture for mechanical maintenance according to claim 8, characterized in that: Two fixing plates (60) are arranged on the top of the horizontal plate (55), and a hinge shaft (572) is arranged between the two fixing plates (60), and the hinge shaft (572) is connected with the hinge plate (59 ) rotation fit. 10. A fixture for mechanical maintenance according to claim 9, characterized in that: A spring (573) is sheathed on the sliding rod (57), and the spring (573) is press-fitted with the slider (571), and the spring (573) is pressed against the side wall of the second chute (56). Tight fit.

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