CN117506775A - Clamping tool for cylinder sleeve machining - Google Patents

Abstract

The invention relates to the technical field of cylinder sleeve machining and discloses a clamping tool for cylinder sleeve machining, which solves the problem of poor use effect of the traditional clamping tool for cylinder sleeve machining and comprises an adjusting chuck, wherein one end of the adjusting chuck is fixedly provided with a mounting seat, one end of the mounting seat, which is far away from the adjusting chuck, is provided with a telescopic adjusting mechanism, the side edge of the adjusting chuck, which is far away from one end of the mounting seat, is provided with a plurality of adjustable clamping arms, the middle position inside the adjusting chuck is fixedly provided with an inner clamping auxiliary supporting mechanism matched with the adjustable clamping arms, one end of the outer surface of the inner clamping auxiliary supporting mechanism is fixedly provided with an auxiliary limiting mechanism, and a plurality of outer clamping auxiliary supporting mechanisms matched with the adjustable clamping arms are arranged between the adjusting chuck and the auxiliary limiting mechanism; the clamping tool can clamp the inner surface and the outer surface of the cylinder sleeve respectively, so that the inner surface and the outer surface of the cylinder sleeve can be machined, the clamping uniformity can be improved, and stable clamping is realized.

Description

Clamping tool for cylinder sleeve machining

Technical Field

The invention belongs to the technical field of cylinder sleeve machining, and particularly relates to a clamping tool for cylinder sleeve machining.

Background

And in the cylinder sleeve processing process, the cylinder sleeve is clamped and fixed by using a clamping tool, so that the stability of the cylinder sleeve during processing is improved.

The cylinder liner is cylindric structure, when processing the cylinder liner, not only need process its internal surface, also need process its external surface, the clamp fixture that uses at present generally can only press from both sides tightly or press from both sides tightly the cylinder liner outside alone to the cylinder liner inside, consequently need use two sets of clamp fixtures to carry out spacing clamp to the cylinder liner when processing the cylinder liner internal and external surface, not only the operation is inconvenient, has improved the cost moreover, because of above-mentioned reason, this application provides a clamp fixture for cylinder liner processing.

Disclosure of Invention

Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the clamping tool for processing the cylinder sleeve, which effectively solves the problem that the prior clamping tool for processing the cylinder sleeve has poor use effect.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a cylinder liner processing is with pressing from both sides tight frock, includes the regulation chuck, the one end of regulation chuck is fixed to be provided with the mount pad, and the one end that regulation chuck was kept away from to the mount pad is provided with flexible adjustment mechanism, and the side that regulation chuck kept away from mount pad one end is provided with a plurality of adjustable centre gripping arms, and the fixed clamping auxiliary support mechanism that is provided with in the intermediate position of regulation chuck inside with adjustable centre gripping arm assorted, the fixed auxiliary limiting mechanism that is provided with of one end of internal clamping auxiliary support mechanism surface, be provided with a plurality of and the outer clamping auxiliary support mechanism of adjustable centre gripping arm assorted between regulation chuck and the auxiliary limiting mechanism.

Preferably, the adjusting chuck comprises a supporting disc body, a small bevel gear, an inner hexagonal adjusting shaft, a large bevel gear, a rotating disc and plane threads, wherein the supporting disc body is fixedly connected with the mounting seat, the inner hexagonal adjusting shaft is fixedly connected with one end of the small bevel gear, the inner hexagonal adjusting shaft is rotationally connected with the arc-shaped inner side edge of the supporting disc body, the rotating disc is rotationally connected with one end inside the supporting disc body, the large bevel gear is fixedly connected with one end of the rotating disc and meshed with the small bevel gear, and the plane threads are fixedly connected with the other end of the rotating disc.

Preferably, the arc-shaped outer side edge of the supporting disc body is provided with a wrench jack matched with the inner hexagonal adjusting shaft, the inner hexagonal adjusting shaft is rotationally connected with the supporting disc body through a bearing, the arc-shaped outer side edge of the rotating disc is rotationally connected with the supporting disc body through a bearing II, the rotating disc is rotationally connected with the inner clamping auxiliary supporting mechanism through a bearing III, and one end of the supporting disc body is provided with a plurality of limiting sliding grooves I matched with the adjustable clamping arms.

Preferably, the adjustable clamping arm comprises a sliding seat, a supporting cross arm, a bending clamping arm, a first servo motor and a rotating shaft, wherein the sliding seat is connected in the first limiting sliding groove in a sliding mode and sleeved with the planar threads in a sliding mode, the supporting cross arm is fixedly connected to one side of the sliding seat, the first servo motor is fixedly connected to one end of the inner portion of the supporting cross arm, the rotating shaft is fixedly connected to an output shaft of the first servo motor, and the bending clamping arm is located at one end of the supporting cross arm and fixedly connected with the rotating shaft.

Preferably, the other side of the sliding seat is provided with a plurality of plane thread grooves matched with the plane threads, the rotating shaft is connected with the supporting cross arm in a four-rotation mode through a plurality of bearings, and two sides of the supporting cross arm are fixedly provided with limiting sliding blocks matched with the auxiliary limiting mechanisms.

Preferably, the auxiliary limiting mechanism comprises an auxiliary limiting disc and a plurality of first supports, the auxiliary limiting disc is fixedly sleeved at one end of the arc-shaped outer surface of the inner clamping auxiliary supporting mechanism, the first supports are fixedly connected to the arc-shaped outer surface of the auxiliary limiting disc and are matched and connected with the outer clamping auxiliary supporting mechanism, a plurality of limiting sliding grooves II matched with the limiting sliding blocks are formed in the auxiliary limiting disc, and the limiting sliding blocks are slidably connected in the limiting sliding grooves II.

Preferably, the telescopic adjusting mechanism is composed of a multi-stage hydraulic telescopic rod and a connecting plate, one end of the multi-stage hydraulic telescopic rod is fixedly inserted into the side edge of one end of the mounting seat, the connecting plate is fixedly connected to the other end of the multi-stage hydraulic telescopic rod, and one end of the internal clamping auxiliary supporting mechanism is fixedly connected with the connecting plate.

Preferably, the internal clamping auxiliary supporting mechanism is composed of a limiting sleeve, a central supporting column, a second servo motor, a worm wheel, a multi-groove rope wheel, a plurality of traction steel ropes, a plurality of inclined guide rails, a plurality of tension springs, a plurality of limiting footstands, a plurality of limiting internal supporting arms and a plurality of spring shafts, wherein the limiting sleeve is fixedly connected to the inside of the adjusting chuck, the central supporting column is slidably connected to the inside of the limiting sleeve and fixedly connected with the connecting plate, one end of the inside of the central supporting column is provided with an inner groove, a plurality of through grooves and a plurality of mounting grooves, the second servo motor is fixedly connected to one end of the inside of the central supporting column, the worm wheel and the multi-groove rope wheel are fixedly connected to the output shaft of the second servo motor through synchronous shafts in a rotating mode, the worm wheel is meshed with the worm wheel and the worm wheel, the inclined guide rails are fixedly connected to the side edges of the inside of the mounting grooves, the limiting footstands are slidably connected to the inclined guide rails, the traction steel ropes are connected between the limiting footstands and the multi-groove rope wheels and are inserted between the inner groove and the through grooves, the tension springs are connected between the limiting footstands and the central supporting column, and the spring shafts, the inner supporting arms are rotatably connected to the inside the mounting grooves through the spring shafts.

Preferably, the outer clamping auxiliary supporting mechanism comprises a second support, a hydraulic telescopic rod, a limiting outer supporting arm and a supporting arm, wherein the second support is fixedly connected to the arc-shaped outer side edge of the adjusting chuck, the supporting arm is fixedly connected to one end of the side edge of the limiting outer supporting arm, the hydraulic telescopic rod is connected between the second support and the supporting arm, one end of the limiting outer supporting arm is rotatably connected with the second support, and the hydraulic telescopic rod is rotatably connected with the second support and the supporting arm, and the limiting outer supporting arm is rotatably connected with the first support through a movable shaft.

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

(1) In operation, the adjustable clamping arm can be subjected to position adjustment by arranging the adjusting chuck composed of the supporting disc body, the small bevel gear, the inner hexagonal adjusting shaft, the large bevel gear, the rotating disc and the plane threads, so that the adjustable clamping arm can be suitable for clamping and limiting cylinder sleeves with different diameters, the adjustable clamping arm can be further limited by arranging the auxiliary limiting mechanism composed of the auxiliary limiting disc and the first support seats, the stability of the adjustable clamping arm is improved, and meanwhile, the auxiliary supporting mechanism can be used for carrying out auxiliary support on the external clamping auxiliary supporting mechanism;

(2) The adjustable clamping arm formed by the sliding seat, the supporting cross arm, the bending clamping arm, the first servo motor and the rotating shaft is arranged, so that the rotation control of the adjustable clamping arm can be realized, the clamping stroke can be increased to a certain extent when the cylinder sleeve is clamped internally or externally, and the adjustable clamping arm can be further suitable for clamping work of the cylinder sleeve with larger or smaller diameter;

(3) The telescopic adjusting mechanism formed by the multistage hydraulic telescopic rod and the connecting plate and the inner clamping auxiliary supporting mechanism formed by the limiting sleeve, the central supporting column, the servo motor II, the worm wheel, the multi-groove rope wheel, the traction steel ropes, the inclined guide rails, the tension springs, the limiting footrests, the limiting inner supporting arms and the spring shafts are arranged, so that the inner surface of the cylinder sleeve can be clamped and limited when the outer surface of the cylinder sleeve is processed, and the stability of the adjustable clamping arms is improved;

(4) The outer clamping auxiliary supporting mechanism composed of the second support seat, the hydraulic telescopic rod, the limiting outer supporting arm and the supporting arm is arranged, so that the outer surface of the cylinder sleeve can be clamped and limited when the inner surface of the cylinder sleeve is processed, and the stability of the adjustable clamping arm is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.

In the drawings:

FIG. 1 is a schematic diagram of a partial structure of a clamping tool for cylinder sleeve processing;

FIG. 2 is a second schematic view of a partial structure of a clamping tool for processing a cylinder liner according to the present invention;

FIG. 3 is a cross-sectional view of one of the clamping tools for processing cylinder liners of the present invention;

FIG. 4 is a second cross-sectional view of the clamping tool for processing the cylinder liner of the present invention;

FIG. 5 is a cross-sectional view of an adjustment chuck according to the present invention;

FIG. 6 is a schematic view of a planar thread structure according to the present invention;

FIG. 7 is a schematic view of an adjustable clamp arm according to the present invention;

FIG. 8 is a schematic view of an auxiliary limiting mechanism according to the present invention;

FIG. 9 is a schematic view of the internal clamping auxiliary support mechanism of the present invention;

FIG. 10 is a schematic view of the structure of the external clamping auxiliary supporting mechanism of the present invention;

in the figure: 1. adjusting the chuck; 2. a mounting base; 3. a telescopic adjusting mechanism; 4. an adjustable clamping arm; 5. an internal clamping auxiliary supporting mechanism; 6. an auxiliary limiting mechanism; 7. an external clamping auxiliary supporting mechanism; 8. a support tray body; 9. bevel pinion; 10. an inner hexagonal adjusting shaft; 11. a large bevel gear; 12. a rotating disc; 13. a planar thread; 14. a spanner jack; 15. a first bearing; 16. a second bearing; 17. a third bearing; 18. a first limiting chute; 19. a slide; 20. supporting the cross arm; 21. a bent clip arm; 22. a servo motor I; 23. a rotating shaft; 24. a planar thread groove; 25. a bearing IV; 26. a limit sliding block; 27. auxiliary limit discs; 28. a first support; 29. a limiting chute II; 30. a multi-stage hydraulic telescopic rod; 31. a connecting plate; 32. a limit sleeve; 33. a central support column; 34. a servo motor II; 35. a worm; 36. a worm wheel; 37. a multi-grooved sheave; 38. traction steel rope; 39. a sloped rail; 40. a tension spring; 41. a limiting top seat; 42. limiting the inner supporting arm; 43. a spring shaft; 44. an inner tank; 45. a through groove; 46. a mounting groove; 47. a synchronizing shaft; 48. a second support; 49. a hydraulic telescopic rod; 50. a limiting outer support arm; 51. a support arm; 52. a movable shaft.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The first embodiment of the invention is shown in fig. 1 to 4, the clamping fixture for cylinder liner machining comprises an adjusting chuck 1, wherein one end of the adjusting chuck 1 is fixedly provided with a mounting seat 2, one end of the mounting seat 2, which is far away from the adjusting chuck 1, is provided with a telescopic adjusting mechanism 3, a plurality of adjustable clamping arms 4 are arranged on the side edge of one end of the adjusting chuck 1, which is far away from the mounting seat 2, an inner clamping auxiliary supporting mechanism 5 matched with the adjustable clamping arms 4 is fixedly arranged in the middle position inside the adjusting chuck 1, one end of the outer surface of the inner clamping auxiliary supporting mechanism 5 is fixedly provided with an auxiliary limiting mechanism 6, and a plurality of outer clamping auxiliary supporting mechanisms 7 matched with the adjustable clamping arms 4 are arranged between the adjusting chuck 1 and the auxiliary limiting mechanism 6;

when the adjustable clamping arm 4 is used, the mounting seat 2 can be fixedly mounted or mounted on the output shaft of the rotating mechanism according to the requirements, so that the cylinder sleeve can be fixedly supported or rotatably supported, the adjustable clamping arm 4 is subjected to position adjustment through the adjusting chuck 1, so that the cylinder sleeves with different diameters can be clamped, and the adjustable clamping arm 4 can be limited and reinforced when the adjustable clamping arm 4 is subjected to inner clamping or outer clamping through the inner clamping auxiliary supporting mechanism 5 and the outer clamping auxiliary supporting mechanism 7, so that the stability during clamping can be improved;

in the second embodiment, based on the first embodiment, as shown in fig. 1 to 6, the adjusting chuck 1 is formed by a supporting disc body 8, a bevel pinion 9, an inner hexagonal adjusting shaft 10, a bevel gear 11, a rotating disc 12 and a plane thread 13, the supporting disc body 8 is fixedly connected with the mounting seat 2, the inner hexagonal adjusting shaft 10 is fixedly connected with one end of the bevel pinion 9, the inner hexagonal adjusting shaft 10 is rotatably connected with the arc inner side edge of the supporting disc body 8, the rotating disc 12 is rotatably connected with one end inside the supporting disc body 8, the bevel gear 11 is fixedly connected with one end of the rotating disc 12 and meshed with the bevel pinion 9, the plane thread 13 is fixedly connected with the other end of the rotating disc 12, a wrench jack 14 matched with the inner hexagonal adjusting shaft 10 is formed on the arc outer side edge of the supporting disc body 8, the inner hexagonal adjusting shaft 10 is rotatably connected with the supporting disc body 8 through a first bearing 15, the arc outer side edge of the rotating disc 12 is rotatably connected with the supporting disc body 8 through a second bearing 16, one end of the supporting disc 12 is rotatably connected with the inner clamping auxiliary supporting mechanism 5 through a third bearing 17, and a plurality of limit sliding grooves 18 matched with a plurality of adjustable clamping arms 4 are formed on one end of the supporting disc 8;

when the adjusting chuck 1 is adjusted, a hexagonal wrench is inserted into the wrench insertion hole 14 and is in clamping connection with the inner hexagonal adjusting shaft 10, the hexagonal wrench is rotated, the inner hexagonal adjusting shaft 10 is driven to rotate by the hexagonal wrench, the small bevel gear 9 is driven to rotate by the inner hexagonal adjusting shaft 10, the large bevel gear 11 is driven to rotate by the small bevel gear 9, the rotating disc 12 and the plane threads 13 are driven by the large bevel gear 11, the adjustable clamping arm 4 is driven by the plane threads 13, further, the position adjustment of the adjustable clamping arm 4 is realized, the clamping fixation of cylinder sleeves with different diameters is realized, the limit of the adjustable clamping arm 4 can be realized through the limit chute I18, the stability of the adjustable clamping arm 4 is improved, and the mobility of the inner hexagonal adjusting shaft 10 and the rotating disc 12 can be improved through the bearing I15, the bearing II 16 and the bearing III 17;

based on the first embodiment, as shown in fig. 1 to 8, the adjustable clamping arm 4 is composed of a sliding seat 19, a supporting cross arm 20, a bending clamping arm 21, a first servo motor 22 and a rotating shaft 23, the sliding seat 19 is slidably connected in the first limit chute 18 and is slidably sleeved in the planar thread 13, the supporting cross arm 20 is fixedly connected to one side of the sliding seat 19, the first servo motor 22 is fixedly connected to one end in the supporting cross arm 20, the rotating shaft 23 is fixedly connected to an output shaft of the first servo motor 22, the bending clamping arm 21 is positioned at one end of the supporting cross arm 20 and is fixedly connected with the rotating shaft 23, a plurality of planar thread grooves 24 matched with the planar thread 13 are formed in the other side of the sliding seat 19, the rotating shaft 23 is rotatably connected with the supporting cross arm 20 through a plurality of bearings four 25, two sides of the supporting cross arm 20 are fixedly provided with limit sliders 26 matched with the auxiliary limit mechanisms 6, the auxiliary limit mechanisms 6 are composed of auxiliary limit discs 27 and a plurality of supports one 28, the auxiliary limit discs 27 are fixedly sleeved on one ends of the arc-shaped outer surfaces of the inner clamping auxiliary support mechanisms 5, the supports 28 are fixedly connected to the arc-shaped outer surfaces of the auxiliary limit discs 27 and are fixedly connected with the arc-shaped outer surfaces of the auxiliary limit discs 27, the auxiliary limit discs 26 are matched with the inner limit sliders 29, and the auxiliary limit sliders 29 are connected with the inner limit sliders 29 are matched with the auxiliary limit sliders 29;

when the cylinder sleeve is required to be internally clamped so as to process the outer surface of the cylinder sleeve, a first servo motor 22 is started, a rotating shaft 23 is driven to rotate through the first servo motor 22, a bent clamping arm 21 is driven to rotate through the rotating shaft 23 (as shown in fig. 2 and 4), at the moment, the adjustable clamping arm 4 can be adapted to internally clamp the cylinder sleeve with smaller inner diameter, the adaptability is improved, when the cylinder sleeve is required to be externally clamped so as to process the inner surface of the cylinder sleeve, the first servo motor 22 is started, the rotating shaft 23 is driven to rotate through the first servo motor 22, the bent clamping arm 21 is driven to rotate through the rotating shaft 23 (as shown in fig. 1 and 3), at the moment, the adjustable clamping arm 4 can be adapted to externally clamp the cylinder sleeve with larger outer diameter, the adaptability is improved, the sliding seat 19 can be clamped with the plane threads 13, the adjustable clamping arm 4 can be adjusted through the adjusting chuck 1, the adjustable clamping arm 4 can be further limited through a limiting chute II 29 on the auxiliary limiting mechanism 6, and the stability of the adjustable clamping arm 4 is improved;

based on the first embodiment, the telescopic adjustment mechanism 3 is formed by a multi-stage hydraulic telescopic rod 30 and a connecting plate 31, one end of the multi-stage hydraulic telescopic rod 30 is fixedly inserted into one side edge of one end of the mounting seat 2, the connecting plate 31 is fixedly connected with the other end of the multi-stage hydraulic telescopic rod 30, one end of the inner clamping auxiliary support mechanism 5 is fixedly connected with the connecting plate 31, the inner clamping auxiliary support mechanism 5 is formed by a limit sleeve 32, a central support column 33, a servo motor II 34, a worm 35, a worm wheel 36, a multi-grooved rope wheel 37, a plurality of traction steel ropes 38, a plurality of inclined guide rails 39, a plurality of tension springs 40, a plurality of limit top seats 41, a plurality of limit inner support arms 42 and a plurality of spring shafts 43, the limit sleeve 32 is fixedly connected to the inside of the adjustment chuck 1, the central support column 33 is in a sliding connection mode, one end of the inside of the central support column 33 is provided with an inner groove 44, a plurality of through grooves 45 and a plurality of mounting grooves 46, the servo motor II 34 is fixedly connected to one end of the inside of the central support column 33, the inner clamping auxiliary support mechanism II is fixedly connected with the output shaft, the worm wheel 35 is fixedly connected to the inner side edge of the output shaft 34, the worm wheel 34 is fixedly connected with the inner side edge of the multi-grooved wheel 33, the multi-grooved rope wheel 36 is rotatably connected with the inner groove 37 and the inner groove 46 through the inclined guide rails 39, the inner groove 41 and the inner groove 45 are fixedly connected with the limit support seat 41, the inner groove 45 and the limit support seat 41 through the inner groove 45, the inner groove 45 are fixedly connected with the inner groove 41, the inner groove 43 is fixedly connected with the side groove 43, and the side groove 43, the inner groove 33 is connected with the inner groove 33, and the side is connected by the side groove is connected by the inner groove and the side;

when the adjustable clamping arm 4 clamps the cylinder sleeve internally, the connecting plate 31 is driven to move through the multistage hydraulic telescopic rod 30, the central supporting column 33 is driven to move through the connecting plate 31, one end of the central supporting column 33 moves between the adjustable clamping arms 4, the second servo motor 34 is started, the second servo motor 34 drives the worm 35 to rotate, the worm wheel 36 is driven to rotate through the worm wheel 36, the multi-grooved rope wheel 37 is driven to rotate, the multi-grooved rope wheel 37 tightens the traction steel rope 38, the traction steel rope 38 pulls the limiting top seat 41, the limiting top seat 41 slides on the inclined guide rail 39, the limiting top seat 41 pushes the limiting inner supporting arm 42 in the sliding process of the limiting top seat 41, the limiting inner supporting arm 42 moves out of the mounting groove 46, limiting supporting of the bending type clamping arm 21 is achieved through the limiting inner supporting arm 42 (as shown in fig. 2 and 4), the stability of the bending type clamping arm 21 is further improved, when the internal clamping auxiliary supporting mechanism 5 is required to be reset through machining, the second servo motor 34 is controlled to rotate, the traction rope 38 is in a loose state, the limiting top seat 41 is driven to reset through the limiting top seat 41, the limiting top seat 41 is pulled, the limiting inner supporting arm 41 is reset, and the limiting supporting arm 42 is reset through the limiting supporting arm 43, and the limiting supporting arm 42 is driven by the limiting inner supporting arm 43, and the limiting supporting arm 42 is reset through the limiting supporting arm 43;

the fifth embodiment is provided by fig. 1, fig. 2, fig. 3, fig. 4, fig. 8 and fig. 10 on the basis of the first embodiment, the outer clamping auxiliary supporting mechanism 7 is composed of a second support 48, a hydraulic telescopic rod 49, a limiting outer supporting arm 50 and a supporting arm 51, the second support 48 is fixedly connected to the arc-shaped outer side edge of the adjusting chuck 1, the supporting arm 51 is fixedly connected to one end of the side edge of the limiting outer supporting arm 50, the hydraulic telescopic rod 49 is connected between the second support 48 and the supporting arm 51, one end of the limiting outer supporting arm 50 is rotatably connected with the first support 28, and the hydraulic telescopic rod 49 is rotatably connected with the second support 48 and the supporting arm 51, and the limiting outer supporting arm 50 is rotatably connected with the first support 28 through a movable shaft 52;

when the adjustable clamping arm 4 clamps the cylinder sleeve outside, the hydraulic telescopic rod 49 is started, the support arm 51 is pushed through the extension of the hydraulic telescopic rod 49, the limiting outer support arm 50 is pushed through the support arm 51, the limiting outer support arm 50 rotates around the first support 28, limiting compression (shown in fig. 1 and 3) on the bent clamping arm 21 is realized through the limiting outer support arm 50, the stability of the bent clamping arm 21 is improved, and when the external clamping auxiliary support mechanism 7 is required to be reset after machining is completed, the hydraulic telescopic rod 49 is controlled to shrink.

In operation, the adjustable clamping arm can be subjected to position adjustment by arranging an adjusting chuck composed of a supporting disc body, a bevel pinion, an inner hexagonal adjusting shaft, a bevel gear, a rotating disc and plane threads, so that the adjustable clamping arm can be suitable for clamping and limiting cylinder sleeves with different diameters, the adjustable clamping arm can be further limited by arranging an auxiliary limiting mechanism composed of an auxiliary limiting disc and a plurality of first supports, the stability of the adjustable clamping arm is improved, and meanwhile, the auxiliary supporting mechanism can be used for carrying out auxiliary support on external clamping; the adjustable clamping arm formed by the sliding seat, the supporting cross arm, the bending clamping arm, the first servo motor and the rotating shaft is arranged, so that the rotation control of the adjustable clamping arm can be realized, the clamping stroke can be increased to a certain extent when the cylinder sleeve is clamped internally or externally, and the adjustable clamping arm can be further suitable for clamping work of the cylinder sleeve with larger or smaller diameter; the telescopic adjusting mechanism formed by the multistage hydraulic telescopic rod and the connecting plate and the inner clamping auxiliary supporting mechanism formed by the limiting sleeve, the central supporting column, the servo motor II, the worm wheel, the multi-groove rope wheel, the traction steel ropes, the inclined guide rails, the tension springs, the limiting footrests, the limiting inner supporting arms and the spring shafts are arranged, so that the inner surface of the cylinder sleeve can be clamped and limited when the outer surface of the cylinder sleeve is processed, and the stability of the adjustable clamping arms is improved; through setting up the outer clamping auxiliary support mechanism that comprises support two, hydraulic telescoping rod, spacing outer support arm and support arm, can realize carrying out the centre gripping spacing to the surface of cylinder liner when processing the internal surface of cylinder liner, improve the stability of adjustable centre gripping arm.

Claims (9)

1. The utility model provides a cylinder liner processing is with pressing from both sides tight frock, includes adjustment chuck (1), its characterized in that: the adjustable clamping device comprises an adjusting chuck (1), wherein an installing seat (2) is fixedly arranged at one end of the adjusting chuck (1), a telescopic adjusting mechanism (3) is arranged at one end of the installing seat (2) away from the adjusting chuck (1), a plurality of adjustable clamping arms (4) are arranged on the side edge of the adjusting chuck (1) away from one end of the installing seat (2), an inner clamping auxiliary supporting mechanism (5) matched with the adjustable clamping arms (4) is fixedly arranged at the middle position inside the adjusting chuck (1), an auxiliary limiting mechanism (6) is fixedly arranged at one end of the outer surface of the inner clamping auxiliary supporting mechanism (5), and a plurality of outer clamping auxiliary supporting mechanisms (7) matched with the adjustable clamping arms (4) are arranged between the adjusting chuck (1) and the auxiliary limiting mechanism (6).

2. The clamping tool for machining a cylinder liner according to claim 1, wherein: the adjusting chuck (1) comprises a supporting disc body (8), a small bevel gear (9), an inner hexagonal adjusting shaft (10), a large bevel gear (11), a rotating disc (12) and plane threads (13), wherein the supporting disc body (8) is fixedly connected with a mounting seat (2), the inner hexagonal adjusting shaft (10) is fixedly connected with one end of the small bevel gear (9), the inner hexagonal adjusting shaft (10) is rotationally connected with the arc-shaped inner side edge of the supporting disc body (8), the rotating disc (12) is rotationally connected with one end inside the supporting disc body (8), the large bevel gear (11) is fixedly connected with one end of the rotating disc (12) and meshed with the small bevel gear (9), and the plane threads (13) are fixedly connected with the other end of the rotating disc (12).

3. The clamping tool for machining a cylinder liner according to claim 2, wherein: the novel adjustable clamping arm is characterized in that a spanner jack (14) matched with the inner hexagonal adjusting shaft (10) is formed in the arc-shaped outer side edge of the supporting disc body (8), the inner hexagonal adjusting shaft (10) is rotationally connected with the supporting disc body (8) through a first bearing (15), the arc-shaped outer side edge of the rotating disc (12) is rotationally connected with the supporting disc body (8) through a second bearing (16), the rotating disc (12) is rotationally connected with the inner clamping auxiliary supporting mechanism (5) through a third bearing (17), and a plurality of limiting sliding grooves (18) matched with the adjustable clamping arm (4) are formed in one end of the supporting disc body (8).

4. A clamping fixture for machining a cylinder liner according to claim 3, wherein: the adjustable clamping arm (4) comprises a sliding seat (19), a supporting cross arm (20), a bending type clamping arm (21), a first servo motor (22) and a rotating shaft (23), wherein the sliding seat (19) is connected to the inside of the first limiting sliding groove (18) in a sliding mode and is sleeved on the plane thread (13) in a sliding mode, the supporting cross arm (20) is fixedly connected to one side of the sliding seat (19), the first servo motor (22) is fixedly connected to one end of the inside of the supporting cross arm (20), the rotating shaft (23) is fixedly connected to an output shaft of the first servo motor (22), and the bending type clamping arm (21) is located at one end of the supporting cross arm (20) and is fixedly connected with the rotating shaft (23).

5. The clamping tool for machining a cylinder liner according to claim 4, wherein: the other side of the sliding seat (19) is provided with a plurality of plane thread grooves (24) matched with the plane threads (13), the rotating shaft (23) is rotationally connected with the supporting cross arm (20) through a plurality of bearings (25), and two sides of the supporting cross arm (20) are fixedly provided with limit sliding blocks (26) matched with the auxiliary limit mechanisms (6).

6. The clamping tool for machining a cylinder liner according to claim 5, wherein: the auxiliary limiting mechanism (6) is composed of an auxiliary limiting disc (27) and a plurality of first supports (28), one end of the arc-shaped outer surface of the inner clamping auxiliary supporting mechanism (5) is fixedly sleeved on the auxiliary limiting disc (27), the first supports (28) are fixedly connected to the arc-shaped outer surface of the auxiliary limiting disc (27) and are matched and connected with the outer clamping auxiliary supporting mechanism (7), a plurality of second limiting sliding grooves (29) matched with the limiting sliding blocks (26) are formed in the auxiliary limiting disc (27), and the limiting sliding blocks (26) are slidably connected to the second limiting sliding grooves (29).

7. The clamping tool for machining a cylinder liner according to claim 1, wherein: the telescopic adjusting mechanism (3) is composed of a multistage hydraulic telescopic rod (30) and a connecting plate (31), one end of the multistage hydraulic telescopic rod (30) is fixedly inserted into the side edge of one end of the mounting seat (2), the connecting plate (31) is fixedly connected to the other end of the multistage hydraulic telescopic rod (30), and one end of the internal clamping auxiliary supporting mechanism (5) is fixedly connected with the connecting plate (31).

8. The clamping tool for machining a cylinder liner according to claim 7, wherein: the inner clamping auxiliary supporting mechanism (5) consists of a limiting sleeve (32), a central supporting column (33), a second servo motor (34), a worm (35), a worm wheel (36), a multi-groove rope wheel (37), a plurality of traction steel ropes (38), a plurality of inclined guide rails (39), a plurality of tension springs (40), a plurality of limiting footstock (41), a plurality of limiting inner supporting arms (42) and a plurality of spring shafts (43), wherein the limiting sleeve (32) is fixedly connected to the inside of the adjusting chuck (1), the central supporting column (33) is slidably connected to the inside of the limiting sleeve (32) and fixedly connected with a connecting plate (31), one end of the inside of the central supporting column (33) is provided with an inner groove (44), a plurality of through grooves (45) and a plurality of mounting grooves (46), the second servo motor (34) is fixedly connected to one end of the inside of the central supporting column (33), the worm (35) is fixedly connected to an output shaft of the second servo motor (34), the worm wheel (36) and the multi-groove rope wheel (37) are rotatably connected to the inside of the central supporting column (33) through a synchronizing shaft (47), the worm wheel (36) is meshed with the worm (35), the inclined guide rails (39) are fixedly connected to one end of the inside of the inner supporting column (33) and fixedly connected to one end of the inner groove (46) on the inclined guide rails (41), the traction steel rope (38) is connected between the limiting top seat (41) and the multi-groove rope wheel (37) and is inserted between the inner groove (44) and the through groove (45), the tension spring (40) is connected between the limiting top seat (41) and the central supporting column (33), and the limiting inner supporting arm (42) is rotationally connected inside the mounting groove (46) through the spring shaft (43).

9. The clamping tool for machining a cylinder liner according to claim 6, wherein: the outer clamping auxiliary supporting mechanism (7) is composed of a second support (48), a hydraulic telescopic rod (49), a limiting outer supporting arm (50) and a supporting arm (51), wherein the second support (48) is fixedly connected to the arc-shaped outer side edge of the adjusting chuck (1), the supporting arm (51) is fixedly connected to one end of the side edge of the limiting outer supporting arm (50), the hydraulic telescopic rod (49) is connected between the second support (48) and the supporting arm (51), one end of the limiting outer supporting arm (50) is rotatably connected with the first support (28), and the hydraulic telescopic rod (49) is rotatably connected with the second support (48) and the supporting arm (51) and the limiting outer supporting arm (50) and the first support (28) through a movable shaft (52).