CN116871562B - High-precision middle hole positioning device for steering knuckle - Google Patents

Abstract

The utility model relates to the technical field of steering knuckle machine tool processing, and particularly discloses a steering knuckle high-precision middle hole positioning device. The high-precision middle hole positioning device for the steering knuckle enables the mode that the clamping jaw contacts with the steering knuckle shaft part to be softer, and reduces damage and structural damage to the steering knuckle shaft part; the V-shaped design of the clamping jaw improves the clamping effect on the steering knuckle.

Description

High-precision middle hole positioning device for steering knuckle

Technical Field

The utility model relates to the technical field of steering knuckle machine tool machining, in particular to a steering knuckle high-precision middle hole positioning device.

Background

The knuckle is also called as a 'claw', and is used for transmitting and bearing the front load of the automobile, supporting and driving the front wheel to rotate around the kingpin so as to steer the automobile, and the knuckle bears variable impact load when the automobile runs, so that the knuckle has high strength requirement.

The utility model patent of China with the publication number of CN218836897U discloses a front steering knuckle milling and drilling tool, the drilling tool drives a threaded rod to rotate through a double-headed motor, and then the threaded rod is matched with a threaded hole to realize the movement of a sliding plate, the sliding plate drives clamping plates to move through a connecting plate, so that the two clamping plates are mutually close, the clamping of the steering knuckle is realized, the gesture of the steering knuckle is stabilized, and the dislocation of the steering knuckle during drilling is avoided. However, the inventors found that the following problems still exist when implementing the front knuckle milling drilling tool: the clamping force of the two clamping plates on the steering knuckle is derived from the power of the double-headed motor, so that when the clamping plates are clamped on the steering knuckle, the clamping plates are in rigid contact with the steering knuckle, the force is large, the surface of the steering knuckle is easy to damage, and the structural damage of the steering knuckle is caused; the knuckle is a special-shaped piece, the shape of the special-shaped piece is irregular, and the clamping effect of the planar structure of the clamping plate on the knuckle is weak.

Disclosure of Invention

The utility model provides a high-precision mesoporous positioning device for a steering knuckle, and aims to solve the problems that the structure of the steering knuckle is easy to damage and the clamping effect of a clamping plate on the steering knuckle is weak in the related art.

The high-precision middle hole positioning device for the steering knuckle comprises a drilling machine, wherein the drilling machine is provided with telescopic drilling machines which are symmetrical in the length direction of the drilling machine, the drilling machine is provided with clamps which are positioned between the two telescopic drilling machines and are symmetrical in the height direction of the drilling machine, each clamp comprises a telescopic device, a ratchet bar and a clamping piece, and the telescopic device is arranged on the drilling machine, and the output end of the telescopic device is provided with a supporting piece; the ratchet bars are arranged in a plurality and are distributed at intervals in the length direction of the drilling machine, the ratchet bars and the supporting piece are elastically connected in a sliding manner along the height direction of the drilling machine, one end of each ratchet bar, which is away from the supporting piece, is provided with a clamping jaw, and the clamping jaw is V-shaped and is used for clamping a shaft part of a steering knuckle; the ratchet strip is adjacent to one end of the supporting piece and is provided with a light strip, the clamping piece is elastically connected with the supporting piece in a sliding mode and is stopped against the light strip, and when the ratchet strip and the supporting piece are close to each other, the clamping piece can be clamped with the ratchet strip.

Preferably, the clamp further includes a swash plate mounted to the support for pressing against an edge of a disc ring of the knuckle after the clamping jaw clamps the shaft portion of the knuckle.

Preferably, the fixture further comprises a first slide bar and a clamping plate, the first slide bar is elastically and slidably connected with the supporting piece along the height direction of the drilling machine, and the sloping plate is arranged on the first slide bar; the clamping plate is arranged at one end of the first sliding strip, which is away from the supporting piece, and is used for clamping the shaft part of the steering knuckle.

Preferably, the first slide is provided with a plurality of first ratchets which are distributed at intervals in the height direction of the drilling machine, the clamping piece extends in the length direction of the drilling machine, and when the first slide and the supporting piece are close to each other, the clamping piece can be clamped with the first ratchets.

Preferably, one end of the inclined plate, which is away from the supporting piece, is hinged with the clamping plate, the inclined plate is provided with a first sliding groove extending in the inclined direction of the inclined plate, a sliding rod is slidably matched with the first sliding groove, the first sliding bar is provided with a second sliding groove extending in the height direction of the drilling machine, a sliding block is slidably matched with the second sliding groove, and a connecting rod is connected between the sliding block and the sliding rod; the slide block is provided with a locking piece for locking the position of the slide block in the second sliding groove.

Preferably, the locking piece comprises a locking bolt, the sliding block is provided with a threaded hole, and the locking bolt is in threaded fit with the threaded hole and is stopped against the first sliding bar.

Preferably, the clamp further includes a claw connected to the support member, the claw being adapted to be caught on an outer circumferential surface of a disc ring of the knuckle after the claw clamps a shaft portion of the knuckle, so as to restrict rotation of the knuckle.

Preferably, the fixture further comprises a second slide bar, the second slide bar is elastically connected with the supporting piece in a sliding manner along the height direction of the drilling machine, the clamping jaw is arranged at one end, deviating from the supporting piece, of the second slide bar, a plurality of second ratchets which are distributed at intervals in the height direction of the drilling machine are arranged on the second slide bar, and when the second slide bar and the supporting piece are close to each other, the clamping piece can be clamped to the second ratchets.

Preferably, the clamping piece comprises a clamping plate, a first clamping group, a second clamping group and a third clamping group, wherein the clamping plate extends in the length direction of the drilling machine and is connected with an elastic telescopic rod between the clamping plate and the supporting piece; the first clamping groups and the ratchet bars are equal in number and correspond to each other one by one, the first clamping groups comprise a plurality of third ratchet teeth which are distributed at intervals in the height direction of the drilling machine, and when the ratchet bars and the supporting piece are close to each other, the third ratchet teeth can be clamped with the corresponding ratchet bars; the second clamping group comprises a plurality of fourth ratchets which are distributed at intervals in the height direction of the drilling machine, and when the first sliding bar and the supporting piece are close to each other, the fourth ratchets can be clamped with the first ratchets; the third clamping group comprises a plurality of fifth ratchets which are distributed at intervals in the height direction of the drilling machine, and when the second sliding bar and the supporting piece are close to each other, the fifth ratchets can be clamped with the second ratchets.

Preferably, the telescopic device comprises any one of a hydraulic cylinder, an air cylinder and an electric push rod.

By adopting the technical scheme, the utility model has the beneficial effects that:

1. under the effect of telescoping device, when two support pieces drive clamping jaw from top to bottom and are close to each other, upper and lower clamping jaw all can be centre gripping in the axial region of knuckle, and the clamping force of clamping jaw to knuckle comes from the elastic force between ratchet and the support piece this moment, is limited force, therefore, and this clamping force is less, makes the mode that clamping jaw contacted in knuckle axial region softer, has reduced damage and the structural failure to knuckle axial region. Then, support piece and thorn strip are close to each other, and the fastener is in the thorn strip under the elasticity effect between its and the support piece, and the support piece has formed the state of relative fixation between fastener and the thorn strip to the clamping force of clamping jaw to the knuckle has changed rigidity force by elastic force, has guaranteed the stability of knuckle when drilling, prevents that the knuckle from jumping from top to bottom.

2. When the two V-shaped clamping jaws clamp the shaft part of the steering knuckle, the shaft part of the steering knuckle can be buckled in a limit space formed by the upper clamping jaw and the lower clamping jaw, so that radial runout of the steering knuckle during drilling is avoided, the stability of the steering knuckle is enhanced, and the clamping effect of the clamping jaws on the steering knuckle is improved.

3. When the two supporting pieces are close to each other, the two inclined plates are driven to be close to each other. When the upper clamping jaw and the lower clamping jaw are clamped on the shaft part of the steering knuckle, the two inclined plates are pressed against the edge of the disc ring of the steering knuckle, and under the inclined posture of the inclined plates, the inclined plates have a guiding effect on the steering knuckle and push the steering knuckle to slide in the left-right direction. When the swash plate is stopped against the shaft portion, sliding of the knuckle in the left-right direction is stopped, and at this time, the knuckle is equidistant from the two telescopic drilling rigs. Therefore, the position of the steering knuckle is automatically adjusted, and the observation error of human eyes is avoided by means of mechanical adjustment, so that the accuracy of position adjustment is improved.

4. When the diameter of the disc ring is larger, the sliding block is used for sliding and increasing the distance between the sliding block and the clamping plate, the sliding block drives the sliding rod to slide through the connecting rod, and the sliding rod drives the sloping plate to rotate through the first sliding groove, so that the included angle between the sloping plate and the first sliding bar is reduced. Then, when the swash plate is stopped against the shaft portion, the swash plate pushes the disc ring to move a distance equal to the set value. When the diameter of the disc ring is small, the operation is reversed from that described above. Therefore, the position adjustment of various steering knuckles is realized, and the adaptive stress of various steering knuckles is improved.

Drawings

Fig. 1 is a perspective view of a knuckle high precision mesoporous positioning device of the present utility model.

Fig. 2 is a schematic structural view of the telescopic device to the second slide portion of the present utility model.

Fig. 3 is a schematic structural view of the ratchet bar to second slider portion of the present utility model.

Fig. 4 is a perspective view of the second runner to swash plate portion of the present utility model.

Fig. 5 is a perspective view of the swash plate of the present utility model.

Fig. 6 is a schematic perspective view of the slider-to-slider portion of the present utility model.

Fig. 7 is a schematic perspective view of a second slide to knuckle portion of the present utility model.

Fig. 8 is a schematic perspective view of the support to card portion of the present utility model.

Fig. 9 is a schematic perspective view of a clip of the present utility model.

Fig. 10 is a perspective view of the strut-to-slide aperture portion of the present utility model.

Reference numerals:

1. drilling machine; 2. a telescopic drilling machine; 3. a clamp; 31. a telescoping device; 32. a ratchet strip; 321. a clamping jaw; 322. a light bar; 323. a first spring; 324. a sixth ratchet; 33. a clamping piece; 331. a clamping plate; 332. a third ratchet; 333. a fourth ratchet; 334. a fifth ratchet; 335. a cannula; 336. a fourth spring; 34. a support; 341. a slide hole; 35. a first slide bar; 351. a sloping plate; 3511. a first chute; 3512. a slide bar; 352. a clamping plate; 3521. a rubber pad; 353. a first ratchet; 354. a second chute; 355. a slide block; 3551. a locking member; 356. a connecting rod; 357. a second spring; 36. a second slide bar; 361. a claw; 3611. a convex portion; 362. a second ratchet; 363. a third spring; 4. a knuckle; 41. a shaft portion; 42. a disc ring; 431. side edges.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

The knuckle high precision mesoporous positioning apparatus of the present utility model is described below with reference to fig. 1-10.

As shown in fig. 1 to 3, the knuckle high-precision mesoporous positioning device of the present utility model includes a drilling machine 1, the drilling machine 1 having telescopic drilling machines 2 symmetrical in the length direction thereof, the drilling machine 1 being provided with a jig 3 located between the two telescopic drilling machines 2 and symmetrical in the height direction of the drilling machine 1, the jig 3 including a telescopic device 31, a ratchet bar 32 and a clip 33, the telescopic device 31 being provided to the drilling machine 1 and an output end being provided with a support 34. The ratchet bars 32 are multiple and are distributed at intervals in the length direction of the drilling machine 1, the ratchet bars 32 and the supporting piece 34 are elastically connected in a sliding mode along the height direction of the drilling machine 1, one end, away from the supporting piece 34, of each ratchet bar 32 is provided with a clamping jaw 321, and each clamping jaw 321 is in a V shape and is used for clamping the shaft portion 41 of the steering knuckle 4. The ratchet 32 has a light bar 322 adjacent to one end of the support 34, the clip 33 and the support 34 are elastically slidably connected and are abutted against the light bar 322, and when the ratchet 32 and the support 34 are close to each other, the clip 33 can be clipped on the ratchet 32.

For ease of understanding, the longitudinal direction of the drill press 1 is set to be the left-right direction, the width direction of the drill press 1 is the front-rear direction, and the height direction of the drill press 1 is the up-down direction, i.e., the vertical direction.

In the initial state, the longitudinal direction and the left-right direction of the knuckle 4 are aligned, and the shaft portion 41 of the knuckle 4 is placed on the plurality of jaws 321 of the lower clamp 3. Then, the telescopic device 31 drives the supporting pieces 34 to move vertically, and the two supporting pieces 34 drive the upper clamping jaws 321 and the lower clamping jaws 321 to approach each other. Then, the upper and lower clamping jaws 321 are clamped on the shaft portion 41 of the knuckle 4, and the clamping force of the clamping jaws 321 on the knuckle 4 is from the elastic force between the ratchet bar 32 and the supporting piece 34 to be limited, so that the clamping force is smaller, the mode that the clamping jaws 321 are contacted with the shaft portion 41 of the knuckle 4 is softer, and damage and structural damage to the shaft portion 41 of the knuckle 4 are reduced.

Then, the supporting member 34 continues to move under the driving of the telescopic device 31, the upper and lower clamping jaws 321 are mutually stopped by the middle knuckle 4, and the supporting member 34 moves relative to the clamping jaws 321, in other words, the supporting member 34 and the ratchet bar 32 approach each other at this time, the supporting member 34 drives the clamping member 33 to gradually separate from the light bar 322, after the clamping member 33 is completely separated from the light bar 322, the clamping member 33 is clamped with the ratchet bar 32 under the elastic force between the clamping member 33 and the supporting member 34, so that the movement of the supporting member 34 is limited, and the telescopic device 31 stops accordingly. At this time, the supporting member 34 forms a relatively fixed state between the clamping member 33 and the ratchet bar 32, so that the clamping force of the clamping jaw 321 on the knuckle 4 is converted into a rigid force from an elastic force, the stability of the knuckle 4 during drilling is ensured, and the knuckle 4 is prevented from jumping up and down. In addition, when the two V-shaped clamping jaws 321 clamp the shaft part 41 of the knuckle 4, the shaft part 41 of the knuckle 4 can be buckled in a limit space formed by the upper clamping jaw 321 and the lower clamping jaw 321, so that the knuckle 4 is prevented from jumping along the radial direction of the knuckle during drilling, the stability of the knuckle 4 is enhanced, and the clamping effect of the knuckle 4 is improved by the clamping jaws 321.

Specifically, the supporting member 34 includes a supporting frame, the ratchet 32 and the light bar 322 are vertically slidably mounted in the supporting frame, the ratchet 32 and the light bar 322 are vertically extended and integrally formed, and a first spring 323 located in the supporting frame is connected between the light bar 322 and the supporting frame.

It will be appreciated that the sliding direction of the catch 33 coincides with the front-rear direction.

It will be appreciated that the telescopic drilling machines 2 are telescopic in a left-right direction with respect to the drilling machine 1, thereby facilitating the drilling of both left and right end faces of the knuckle 4 by the drill bits of the two telescopic drilling machines 2.

In order to ensure the punching effect of the two telescopic drilling machines 2 on the knuckle 4, after the knuckle 4 is placed on the clamping jaw 321, it is necessary to ensure that the distance between the left end of the knuckle 4 and the left telescopic drilling machine 2 is equal to the distance between the right end of the knuckle 4 and the right telescopic drilling machine 2. The present utility model also provides embodiment 2 because the position of the knuckle 4 in the left-right direction is not accurate enough after the knuckle 4 is placed by a human hand, and thus the position of the knuckle 4 needs to be adjusted to facilitate the drilling of the telescopic drilling machine 2.

As shown in fig. 1 and 2, in embodiment 2, the clamp 3 further includes, on the basis of embodiment 1, a sloping plate 351 mounted to the support 34, the sloping plate 351 being for pressing against the edge of the disc ring 42 of the knuckle 4 after the clamping jaw 321 clamps the shaft portion 41 of the knuckle 4.

When the two supporting members 34 approach each other, the two sloping plates 351 are driven to approach each other. When the upper and lower clamping jaws 321 are clamped on the shaft portion 41 of the knuckle 4, the elastic positioning of the shaft portion 41 in the radial direction is achieved, at this time, the two sloping plates 351 are pressed against the edge of the disc ring 42 of the knuckle 4, and in the sloping posture of the sloping plates 351, the sloping plates 351 have a guiding effect on the knuckle 4 and push the knuckle 4 to slide in the left-right direction. When the swash plate 351 abuts on the shaft 41, the sliding of the knuckle 4 in the left-right direction is stopped, and at this time, the knuckle 4 is equidistant from the two telescopic drilling rigs 2. Therefore, the position of the steering knuckle 4 is automatically adjusted, and the observation error of human eyes is avoided by means of mechanical adjustment, so that the accuracy of position adjustment is improved.

With continued reference to fig. 2 and 3, further, the clamp 3 further includes a first slide 35 and a clamping plate 352, the first slide 35 and the supporting member 34 are elastically slidably connected along the height direction of the drilling machine 1, and a sloping plate 351 is provided on the first slide 35. A clamp plate 352 is provided at an end of the first slide 35 facing away from the support 34 and is used to clamp the shaft portion 41 of the knuckle 4.

When the supporting member 34 drives the first sliding strips 35 to approach each other, the first sliding strips 35 drive the sloping plates 351 to approach each other. When the sloping plate 351 just abuts against the edge of the disc ring 42, the sloping plate 351 and the edge of the disc ring 42 are in flexible contact under the action of the elastic force of the first sliding bar 35 and the supporting piece 34, namely, the contact force of the sloping plate 351 and the disc ring 42 when in initial contact is smaller, so that the extrusion damage of the sloping plate 351 to the disc ring 42 is reduced, and the structural damage of the disc ring 42 is reduced. Subsequently, the two supports 34 continue to approach each other, while the first slider 35 and the sloping plate 351 remain relatively stationary due to the obstruction of the disc ring 42. Thereby, the support 34 moves here with respect to the first slide 35, the elastic force between the support 34 and the first slide 35 gradually increases, which gradually overcomes the frictional force between the knuckle 4 and the claw 321 and forces the knuckle 4 to slide in the left-right direction, while the first slide 35 and the swash plate 351 gradually move and come to rest against the shaft portion 41 under the action of this elastic force.

Specifically, the first sliding strip 35 is vertically slidably mounted in the supporting frame and is located on the right side of the ratchet strip 32, a second spring 357 located in the supporting frame is connected between the first sliding strip 35 and the supporting frame, the inclined plate 351 is arranged at one end of the first sliding strip 35, which is away from the supporting piece 34, and the inclined surface of the inclined plate 351 faces the edge of the disc ring 42.

Wherein, the rubber pad 3521 has been laid towards the face of knuckle 4 shaft portion 41 to splint 352, has realized the buffering between splint 352 and the knuckle 4 shaft portion 41, has reduced the mechanical collision of splint 352 to knuckle 4 shaft portion 41.

With continued reference to fig. 3 and 4, further, the first slide 35 is provided with a plurality of first ratchet teeth 353 spaced apart in the height direction of the drill press 1, the clip 33 extends in the length direction of the drill press 1, and when the first slide 35 and the support 34 approach each other, the clip 33 can be engaged with the first ratchet teeth 353.

When the position adjustment of the knuckle 4 is finished, after the first slide bar 35 and the inclined plate 351 are both stopped at the shaft portion 41, when the supporting piece 34 continues to move relative to the first slide bar 35, the clamping piece 33 moves along with the movement and is clamped with the first ratchet 353, so that the clamping piece 33 realizes temporary fixation of the first slide bar 35 and the supporting piece 34, the clamping mode of the clamping plate 352 to the shaft portion 41 of the knuckle 4 is converted into rigid clamping mode by flexible clamping, vertical shaking of the shaft portion 41 of the knuckle 4 during drilling is avoided, meanwhile, the temporary fixation of the first slide bar 35 and the supporting piece 34 also locks the position of the inclined plate 351, the blocking effect of the inclined plate 351 to the disc ring 42 is guaranteed, and return of the disc ring 42 is avoided.

It will be appreciated that the clip 33 is engaged with the first ratchet 353 and also is engaged with the ratchet bar 32.

Specifically, the plurality of first ratchet teeth 353 are equally spaced in the height direction of the drill press 1.

Due to the different shapes of the various knuckles 4, the diameters of the disc rings 42 of the knuckles 4 are not uniform. To accommodate positional adjustment of various types of knuckles 4, embodiment 3 is also provided.

As shown in fig. 4 to 6, in embodiment 3, on the basis of embodiment 2, one end of the sloping plate 351 facing away from the supporting member 34 is hinged to the clamping plate 352, the sloping plate 351 is provided with a first sliding groove 3511 extending in the sloping direction thereof, a sliding rod 3512 is slidably fitted in the first sliding groove 3511, the first sliding bar 35 is provided with a second sliding groove 354 extending in the height direction of the drilling machine 1, a sliding block 355 is slidably fitted in the second sliding groove 354, and a connecting rod 356 is connected between the sliding block 355 and the sliding rod 3512; the slider 355 is provided with a locking member 3551 for locking its position in the second slide way 354.

When the diameter of the disc ring 42 is larger, the sliding block 355 is slid, the distance between the sliding block 355 and the clamping plate 352 is increased, the sliding block 355 drives the sliding rod 3512 to slide through the connecting rod 356, and the sliding rod 3512 drives the sloping plate 351 to rotate through the first sliding groove 3511, so that the included angle between the sloping plate 351 and the first sliding bar 35 is reduced. Subsequently, when the swash plate 351 abuts on the shaft portion 41, the swash plate 351 pushes the disc ring 42 to move a distance equal to the set value. When the diameter of the disc ring 42 is small, the operation is reversed from that described above.

By such design, when the diameter of the disc ring 42 is larger, the radial allowance of the disc ring 42 relative to the shaft part 41 is larger, and at the moment, the form of the sloping plate 351 can be changed into narrow and long, so that when the sloping plate 351 moves for a longer distance in the radial direction of the disc ring 42, the disc ring 42 is pushed to move for a shorter distance, and the moving distance of the pushing disc is further equal to a set value; when the diameter of the disc ring 42 is small, the radial margin of the disc ring 42 relative to the shaft portion 41 is small, and at this time, the form of the sloping plate 351 may become "wide and short", so that when the sloping plate 351 moves a short distance in the radial direction of the disc ring 42, the disc ring 42 is pushed to move a long distance, and the moving distance of the pushing disc is made equal to the set value. Therefore, the position adjustment of various steering knuckles 4 is realized, and the adaptability to various steering knuckles 4 is improved.

It will be appreciated that once the distance between the slider 355 and the clamp plate 352 is determined, the locking member 3551 locks the position of the slider 355, preventing the slider 355 from sliding in the second runner 354 and causing a change in position.

It will be appreciated that the ends of the first runner 3511 are closed, preventing the slide bar 3512 from sliding out. The second sliding groove 354 is closed at both ends to prevent the sliding block 355 from sliding out.

Further, the locking member 3551 includes a locking bolt, and the slider 355 is provided with a threaded hole, and the locking bolt is in threaded engagement with the threaded hole and is stopped against the first slider 35.

In the initial state, the locking bolt is separated from the first slide bar 35, after the distance between the sliding block 355 and the clamping plate 352 is determined, the locking bolt is screwed and fed in the threaded hole, when the locking bolt is stopped against the surface of the first slide bar 35, a large pressure is generated between the locking bolt and the first slide bar 35, the pressure increases the friction force between the locking bolt and the first slide bar 35, and the friction force between the locking bolt and the first slide bar 35 can overcome the external force acting on the sliding block 355, so that the position locking of the sliding block 355 is realized, and the position adjustment accuracy of the knuckle 4 is further ensured.

It is understood that the screw holes extend in the left-right direction, and the screw holes are through holes.

With continued reference to fig. 2 and 7, further, the clamp 3 further includes a claw 361, the claw 361 being connected to the support 34, the claw 361 being adapted to be caught on an outer peripheral surface of the disc ring 42 of the knuckle 4 after the claw 321 grips the shaft portion 41 of the knuckle 4, so as to restrict rotation of the knuckle 4.

In general, the shape of the disc ring 42 of the knuckle 4 is irregular, and the intersections of adjacent sides of the disc ring 42 form side ribs 431. When the upper and lower jaws 321 clamp the shaft 41 of the knuckle 4, the two supporting members 34 continue to approach each other, the jaws 361 are driven to move and clamp the outer circumferential surface of the disc ring 42 of the knuckle 4, and the side ribs 431 are located inside the jaws 361, so that the circumferential position of the knuckle 4 is limited by the cooperation of the jaws 361 and the side ribs 431, and the rotation of the knuckle 4 is avoided.

Specifically, the claw 361 has two protrusions 3611 opposing in the front-rear direction, and when the claw 361 is caught on the outer peripheral surface of the disc ring 42 of the knuckle 4, the side rib 431 is located between the two protrusions 3611.

With continued reference to fig. 3 and 7, further, the clamp 3 further includes a second slide bar 36, the second slide bar 36 and the supporting member 34 are elastically slidably connected along the height direction of the drilling machine 1, the claw 361 is disposed at one end of the second slide bar 36, which is away from the supporting member 34, the second slide bar 36 is provided with a plurality of second ratchet teeth 362 distributed at intervals in the height direction of the drilling machine 1, and when the second slide bar 36 and the supporting member 34 are close to each other, the clamping member 33 can be clamped on the second ratchet teeth 362.

When the supporting member 34 drives the second sliding strips 36 to approach each other, the second sliding strips 36 drive the claws 361 to approach each other. When the claw 361 is clamped on the outer circumferential surface of the disc ring 42 of the knuckle 4, the claw 361 is in flexible contact with the outer circumferential surface of the disc ring 42 under the action of the elastic force of the second sliding bar 36 and the supporting piece 34, so that the contact force of the claw 361 and the disc ring 42 is small when the claw 361 is in initial contact, the extrusion damage of the claw 361 to the disc ring 42 is reduced, and the structural damage of the disc ring 42 is reduced. Then, due to the blocking of the knuckle 4, the claw 361 and the second slide bar 36 remain relatively stationary, and at this time, the supporting member 34 moves relative to the second slide bar 36, and when the clip member 33 is clipped to the ratchet bar 32, the clip member 33 is clipped to the second ratchet 362.

Specifically, the second sliding strip 36 extends vertically and is slidably mounted in the support frame along the vertical direction, and a third spring 363 is connected between the second sliding strip 36 and the support frame.

Wherein the plurality of second ratchet teeth 362 are equally spaced in the height direction of the drill press 1.

With continued reference to fig. 8 to 10, further, the clamping member 33 includes a clamping plate 331, a first clamping group, a second clamping group and a third clamping group, and the clamping plate 331 extends in the length direction of the drilling machine 1 and is connected with an elastic telescopic rod with the supporting member 34. The first clamping groups and the ratchet bars 32 are equal in number and correspond to each other one by one, the first clamping groups comprise a plurality of third ratchet teeth 332 which are distributed at intervals in the height direction of the drilling machine 1, and when the ratchet bars 32 and the supporting piece 34 are close to each other, the third ratchet teeth 332 can be clamped with the corresponding ratchet bars 32. The second engagement group includes a plurality of fourth ratchet teeth 333 spaced apart in the height direction of the drill press 1, and the fourth ratchet teeth 333 can be engaged with the first ratchet teeth 353 when the first slide bar 35 and the support 34 are close to each other. The third engaging set includes a plurality of fifth ratchet teeth 334 spaced apart in the height direction of the drill press 1, and the fifth ratchet teeth 334 can engage with the second ratchet teeth 362 when the second slide bar 36 and the support 34 are close to each other.

Thereby, the third ratchet 332 realizes locking of the ratchet 32, prevents further movement of the support 34, and at the same time, converts the clamping force of the clamping jaw 321 to the shaft 41 into a rigid force, improves the clamping effect of the shaft 41, and prevents the shaft 41 from shaking during drilling. In addition, the fourth ratchet 333 realizes temporary locking of the first slider 35 through the first ratchet 353, and the fifth ratchet 334 realizes temporary locking of the second slider 36 through the second ratchet 362, both of which increase stability of the knuckle 4 and avoid wobbling of the knuckle 4 during drilling.

It will be appreciated that after the drilling is finished, when the telescopic device 31 retracts the supporting member 34, the supporting member 34 gradually resets, at this time, the clamping jaw 321, the clamping plate 352 and the clamping jaw 361 still support against the knuckle 4 under the action of the elastic force, at this time, the supporting member 34 is far away from the ratchet bar 32, the first sliding bar 35 and the second sliding bar 36 respectively, the supporting member 34 drives the clamping plate 331 to reset, the clamping plate 331 drives the third ratchet 332, the fourth ratchet 333 and the fifth ratchet 334 to reset, and the third ratchet 332, the fourth ratchet 333 and the fifth ratchet 334 do not receive too great resistance during resetting due to the unidirectional non-return characteristic thereof. And the third ratchet 332, the fourth ratchet 333 and the fifth ratchet 334 force the clamping plate 331 to do telescopic motion when resetting, and the elastic telescopic rod is used for giving way to the telescopic motion of the clamping plate 331.

It will be appreciated that the ratchet bar 32 has a plurality of sixth ratchet teeth 324 equally spaced apart in the vertical direction, and that the third ratchet teeth 332 can engage with the sixth ratchet teeth 324 when the ratchet bar 32 and the support 34 are in close proximity to each other.

Specifically, the elastic telescopic rods are multiple and distributed at equal intervals in the left-right direction.

Wherein, be equipped with in the carriage with the equal and one-to-one slide hole 341 of elastic telescopic handle's quantity, slide hole 341 extends in the fore-and-aft direction, and the elastic telescopic handle includes the intubate 335 that extends in the fore-and-aft direction, and the one end sliding fit of intubate 335 is in corresponding slide hole 341, the other end and the cardboard 331 fixed connection of intubate 335, is equipped with the fourth spring 336 of connecting carriage and cardboard 331 in the intubate 335.

The two engaging members 33 are symmetrical in the front-rear direction, the plurality of sixth ratchet teeth 324 form a fourth engaging group, the number of the fourth engaging group and the number of the engaging members 33 are equal and correspond to each other one by one, the plurality of first ratchet teeth 353 form a fifth engaging group, the number of the fifth engaging group and the number of the engaging members 33 are equal and correspond to each other one by one, the plurality of second ratchet teeth 362 form a sixth engaging group, the number of the sixth engaging group and the number of the engaging members 33 are equal and correspond to each other one by one, and the engaging members 33 are matched with the corresponding fourth engaging group, the fifth engaging group and the sixth engaging group, respectively.

Further, the telescopic device 31 includes any one of a hydraulic cylinder, an air cylinder, and an electric push rod.

Therefore, the telescopic movement is realized by utilizing electric energy, and the manpower is saved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (6)

1. Knuckle high accuracy mesopore positioner, including drilling machine (1), drilling machine (1) have telescopic drilling machine (2) of symmetry in its length direction, characterized in that, drilling machine (1) are equipped with and lie in two between telescopic drilling machine (2) and anchor clamps (3) of symmetry in drilling machine (1) direction of height, anchor clamps (3) include:

the telescopic device (31) is arranged on the drilling machine (1), and a supporting piece (34) is arranged at the output end of the telescopic device (31);

the ratchet strips (32) are arranged in a plurality and are distributed at intervals in the length direction of the drilling machine (1), the ratchet strips (32) and the supporting piece (34) are elastically connected in a sliding mode along the height direction of the drilling machine (1), a clamping jaw (321) is arranged at one end, away from the supporting piece (34), of each ratchet strip (32), and each clamping jaw (321) is V-shaped and used for clamping a shaft part (41) of the steering knuckle (4);

the clamping piece (33) is arranged at one end, adjacent to the supporting piece (34), of the ratchet strip (32), the optical strip (322) is arranged, the clamping piece (33) is elastically connected with the supporting piece (34) in a sliding mode and is stopped against the optical strip (322), and when the ratchet strip (32) and the supporting piece (34) are close to each other, the clamping piece (33) can be clamped with the ratchet strip (32);

the clamp (3) further comprises a sloping plate (351) arranged on the supporting piece (34), wherein the sloping plate (351) is used for pressing against the edge of a disc ring (42) of the steering knuckle (4) after the clamping jaw (321) clamps the shaft part (41) of the steering knuckle (4);

the clamp (3) further comprises:

the first slide bar (35), the first slide bar (35) is elastically and slidably connected with the supporting piece (34) along the height direction of the drilling machine (1), and the inclined plate (351) is arranged on the first slide bar (35);

a clamping plate (352), wherein the clamping plate (352) is arranged at one end of the first sliding bar (35) facing away from the supporting piece (34) and is used for clamping a shaft part (41) of the steering knuckle (4);

the first slide bar (35) is provided with a plurality of first ratchets (353) which are distributed at intervals in the height direction of the drilling machine (1), the clamping piece (33) extends in the length direction of the drilling machine (1), and when the first slide bar (35) and the supporting piece (34) are close to each other, the clamping piece (33) can be clamped with the first ratchets (353);

one end of the inclined plate (351) deviating from the supporting piece (34) is hinged with the clamping plate (352), the inclined plate (351) is provided with a first sliding groove (3511) extending in the inclined direction of the inclined plate, a sliding rod (3512) is in sliding fit in the first sliding groove (3511), the first sliding bar (35) is provided with a second sliding groove (354) extending in the height direction of the drilling machine (1), a sliding block (355) is in sliding fit in the second sliding groove (354), and a connecting rod (356) is connected between the sliding block (355) and the sliding rod (3512); the slide (355) is provided with a locking element (3551) for locking the position thereof in the second sliding groove (354).

2. The knuckle high precision mesoporous positioning device according to claim 1, characterized in that the locking member (3551) comprises a locking bolt, the slider (355) is provided with a threaded hole, and the locking bolt is in threaded fit with the threaded hole and is stopped against the first slide bar (35).

3. A knuckle high precision mesoporous positioning device according to claim 1, characterized in that said clamp (3) further comprises a claw (361), said claw (361) being connected to said support (34), said claw (361) being adapted to be clamped to an outer peripheral surface of a disc ring (42) of said knuckle (4) after said claw (321) clamps a shaft portion (41) of said knuckle (4) to restrict rotation of said knuckle (4).

4. A knuckle high precision mesoporous positioning device according to claim 3, wherein the clamp (3) further comprises a second slide bar (36), the second slide bar (36) and the supporting member (34) are elastically connected in a sliding manner along the height direction of the drilling machine (1), the claw (361) is arranged at one end of the second slide bar (36) away from the supporting member (34), the second slide bar (36) is provided with a plurality of second ratchets (362) which are distributed at intervals along the height direction of the drilling machine (1), and the clamping member (33) can be clamped with the second ratchets (362) when the second slide bar (36) and the supporting member (34) are close to each other.

5. A knuckle high precision mesoporous positioning device according to claim 4, wherein said clip (33) comprises:

the clamping plate (331), the clamping plate (331) extends in the length direction of the drilling machine (1) and is connected with an elastic telescopic rod between the clamping plate and the supporting piece (34);

the first clamping groups are equal in number and correspond to the ratchet bars (32) one by one, the first clamping groups comprise a plurality of third ratchet teeth (332) which are distributed at intervals in the height direction of the drilling machine (1), and when the ratchet bars (32) and the supporting piece (34) are close to each other, the third ratchet teeth (332) can be clamped with the corresponding ratchet bars (32);

a second engagement group including a plurality of fourth ratchet teeth (333) spaced apart in a height direction of the drill press (1), the fourth ratchet teeth (333) being engageable with the first ratchet teeth (353) when the first slide bar (35) and the support (34) are brought close to each other;

and a third clamping group comprising a plurality of fifth ratchets (334) which are distributed at intervals in the height direction of the drilling machine (1), wherein when the second sliding bar (36) and the supporting piece (34) are close to each other, the fifth ratchets (334) can be clamped with the second ratchets (362).

6. The knuckle high precision center hole positioning device as claimed in claim 1, wherein the telescopic device (31) comprises any one of a hydraulic cylinder, a pneumatic cylinder, and an electric push rod.