CN216464194U

CN216464194U - Fixture tool for knuckle spacer bush

Info

Publication number: CN216464194U
Application number: CN202123088238.9U
Authority: CN
Inventors: 葛庞林; 王建烽
Original assignee: Zhejiang Liming Zhizao Co ltd
Current assignee: Zhejiang Liming Zhizao Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-05-10
Anticipated expiration: 2031-12-09

Abstract

The utility model discloses a fixture tool for a steering knuckle spacer bush, which comprises a base, a horizontal limiting mechanism and a vertical limiting mechanism, wherein the horizontal limiting mechanism is arranged on the base and is used for being abutted with the outer side surface of the base of the steering knuckle spacer bush; the advantages are better reliability, better planeness and being beneficial to processing and production.

Description

Fixture tool for knuckle spacer bush

Technical Field

The utility model belongs to the technical field of the automobile parts makes, especially, relate to an anchor clamps frock of knuckle spacer.

Background

The front axle of automobile is a device for transmitting the acting force between the frame and the front wheel and the bending moment and torque produced by the acting force, the two ends of the front axle of automobile are respectively provided with a knuckle, the knuckle is connected with the mounting hole of the front wheel hub through a tapered roller bearing, and the clearance adjustment of the tapered roller bearing is usually realized by assembling a knuckle spacer bush.

As shown in fig. 1, the knuckle bush 1 includes a cylinder 11, and one end of the cylinder 11 extends in the circumferential direction and outward to form a ring-shaped base 12, and in the production process of the conventional knuckle bush, a three-jaw chuck is usually used to clamp the cylinder or the base of the knuckle bush, and three clamping arms of the three-jaw chuck abut against the outer side surface of the cylinder or the outer side surface of the base, respectively. If the clamping force of three-jaw chuck is undersize, it can't realize stable centre gripping effect, if the clamping force of three-jaw chuck is too big, can lead to the hole of drum to take place to warp, and the clamping force is not good to be held, and the knuckle spacer flatness through the centre gripping of three-jaw chuck is relatively poor, is unfavorable for processing production, consequently, the anchor clamps frock of knuckle spacer remains to be improved.

Disclosure of Invention

The utility model aims to solve the technical problem that a be favorable to the anchor clamps frock of knuckle spacer of processing production is provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a fixture attachment of knuckle spacer, includes base, horizontal stop gear and vertical stop gear, horizontal stop gear set up the base on, horizontal stop gear be used for with the lateral surface looks butt of the base of knuckle spacer, vertical stop gear with the base rotate and be connected, work as vertical stop gear when inwards overturning, vertical stop gear press the up end of the base of knuckle spacer on.

The horizontal limiting mechanism comprises three limiting blocks which are distributed at equal intervals along the circumferential direction, the limiting blocks are detachably connected with the upper end face of the base, and the three limiting blocks enclose a space for the steering knuckle spacer to be placed. In this structure, three stopper is selected according to the size parameter of knuckle spacer to the space that makes to enclose just matches with appointed knuckle spacer, and stability is better, and can avoid personnel to put the wrong material.

The limiting block comprises a baffle and a bottom plate, the lower end face of the baffle is fixedly connected with one side of the space, which faces the bottom plate, a first through hole is formed in the bottom plate, three screw holes distributed along the circumferential direction are formed in the upper end face of the base, the first through hole corresponds to the three screw holes in a one-to-one mode, and a bolt penetrates through the first through hole and then is connected with the screw holes in a threaded mode. In this structure, the baffle is the preferred cambered surface towards one side in space, can fully contact with the lateral surface of the base of knuckle spacer, and stability is better.

The base plate is provided with a first positioning hole, the upper end face of the base is provided with a plurality of second positioning holes communicated with the first positioning hole, and the bolt penetrates through the first positioning hole and the second positioning holes communicated with the first positioning hole. In this structure, the bolt realizes the multiple spot location with the bolt cooperation, avoids the bottom plate to take place to rotate, is favorable to improving the stability of structure.

The base is detachably provided with a guide post, and the guide post is positioned in the center of the space. When the knuckle spacer bush is placed in the space, the outer side face of the base of the knuckle spacer bush is in contact with the limiting block, the inner side wall of the cylinder of the knuckle spacer bush is in contact with the guide column, and the cylinder of the knuckle spacer bush is not prone to deformation in the subsequent processing process.

The vertical limiting mechanism comprises a driving mechanism, a push rod and three clamping pieces, the three clamping pieces are distributed on the periphery of the space at equal intervals along the circumferential direction, the three clamping pieces are staggered with the three limiting blocks, each clamping piece comprises a connecting rod and a hook part fixedly arranged at the top end of the connecting rod, the middle part of each connecting rod is rotatably connected with the base, the lower parts of every two connecting rods are connected through a tension spring, the driving mechanism is used for driving the push rod to move up and down, the push rod is positioned at the center of the three connecting rods, and the top end of the push rod is provided with an inclined guide surface which is inclined downwards from inside to outside; when the driving mechanism drives the ejector rod to move upwards, the inclined guide surface of the ejector rod is contacted with the bottom ends of the three connecting rods and enables the bottom ends of the three connecting rods to rotate outwards, the hook part rotates inwards and presses the base of the steering knuckle spacer sleeve, and the tension spring stretches and generates resilience force; when the driving mechanism drives the ejector rod to move downwards, the inclined guide surface of the ejector rod is separated from the bottom ends of the three connecting rods, the tension spring is restored to enable the bottoms of the three connecting rods to rotate inwards, and the hook part rotates outwards and is separated from the base of the steering knuckle spacer bush. In the structure, the driving mechanism can adopt a common air cylinder or oil cylinder on the market, and a driving shaft of the air cylinder or the oil cylinder is fixedly connected with the bottom end of the ejector rod.

The lateral surface of base inwards cave in and form three mounting groove, three mounting groove and three connecting rod one-to-one, the mounting groove run through the upper and lower terminal surface of base, the mounting groove internal fixation be provided with along the pivot that the horizontal direction extends, the connecting rod on be provided with pivot complex second perforate.

The hook part is positioned between the upper end surface of the base and the upper end surface of the limiting block. If the knuckle spacer bush cannot be placed in the space due to the problem of overlarge size, the hook part rotates inwards at the moment and cannot be pressed on the knuckle spacer bush, and the knuckle spacer bush cannot be damaged.

Compared with the prior art, the utility model has the advantages of:

1. the horizontal limiting mechanism is arranged on the base to play a horizontal positioning role so as to prevent the knuckle spacer bush from moving horizontally, then the horizontal limiting mechanism is pressed on the upper end face of the base of the knuckle spacer bush to prevent the knuckle spacer bush from moving along the vertical direction, and finally the purpose of clamping the knuckle spacer bush is achieved;

2. during clamping, the steering knuckle spacer bush is placed on the base, the lower end face of the steering knuckle spacer bush is flush with the upper end face of the base, the flatness is good, manual adjustment is not needed, the assembly is simple, and processing and production are facilitated.

Drawings

FIG. 1 is a schematic view of a knuckle spacer;

FIG. 2 is a schematic view of the present invention;

FIG. 3 is a schematic view of the partial explosion structure of the present invention;

fig. 4 is a schematic sectional structure of the present invention;

fig. 5 is a schematic structural view of the vertical limiting mechanism of the present invention;

fig. 6 is a schematic structural diagram of the middle base of the present invention.

In the figure: 1. a knuckle spacer sleeve; 11. a cylinder; 12. a base; 2. a base; 21. a screw hole; 22. a first positioning hole; 23. a guide post; 24. mounting grooves; 25. a rotating shaft; 3. a horizontal limiting mechanism; 31. a limiting block; 311. a baffle plate; 312. a base plate; 3121. a first perforation; 3122. a second positioning hole; 4. a vertical limiting mechanism; 41. pushing the push rod; 411. an inclined guide surface; 42. a clamping piece; 421. a connecting rod; 4211. a second perforation; 422. a hook part; 423. a tension spring; 5. a bolt; 6. and (4) a bolt.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

The first embodiment is as follows: as shown in the figure, the fixture tool for the steering knuckle spacer comprises a base 2, a horizontal limiting mechanism 3 and a vertical limiting mechanism 4, wherein the horizontal limiting mechanism 3 is arranged on the base 2, the horizontal limiting mechanism 3 is used for being abutted to the outer side face of a base 12 of the steering knuckle spacer 1, the vertical limiting mechanism 4 is rotatably connected with the base 2, when the vertical limiting mechanism 4 overturns inwards, the vertical limiting mechanism 4 is pressed on the upper end face of the base 12 of the steering knuckle spacer 1, and the steering knuckle spacer 1 is locked through the cooperation of the base 2, the horizontal limiting mechanism 3 and the vertical limiting mechanism 4.

In this embodiment, horizontal stop gear 3 includes along three stopper 31 of circumferencial direction equidistant distribution, and stopper 31 can be dismantled with the up end of base 2 and be connected, and three stopper 31 encloses into the space that supplies knuckle spacer 1 to place.

Example two: the rest of the structure is the same as that of the first embodiment, and the difference is that the limiting block 31 includes a baffle 311 and a bottom plate 312, the lower end surface of the baffle 311 is fixedly connected with one side of the bottom plate 312 facing the space, the bottom plate 312 is provided with a first through hole 3121, the upper end surface of the base 2 is provided with three screw holes 21 distributed along the circumferential direction, the three first through holes 3121 are in one-to-one correspondence with the three screw holes 21, and the bolts 5 are in threaded connection with the corresponding screw holes 21 after penetrating through the first through holes 3121.

In this embodiment, the bottom plate 312 is provided with a first positioning hole 22, the upper end surface of the base 2 is provided with a plurality of second positioning holes 3122 communicated with the first positioning hole 22, and the bolt 6 passes through the first positioning hole 22 and the communicated second positioning holes 3122.

In this embodiment, the base 2 is detachably provided with the guide post 23, the guide post 23 is located at the center of the space, when the knuckle spacer 1 is placed in the space, the outer side surface of the base 12 of the knuckle spacer 1 contacts the baffle 311, and the inner side wall of the cylinder 11 of the knuckle spacer 1 contacts the guide post 23.

Example three: the rest of the structure is the same as the first embodiment, the difference lies in that the vertical limiting mechanism 4 includes a driving mechanism (not shown in the figure), the ejector rod 41 and three joint piece 42, the three joint piece 42 is distributed in the periphery of the space at equal intervals along the circumferential direction, the three joint piece 42 is staggered with the three stopper 31, the joint piece 42 includes a connecting rod 421 and a hook 422 fixedly arranged on the top end of the connecting rod 421, the middle part of the connecting rod 421 rotates with the base 2 to be connected, the lower parts of every two connecting rods 421 are connected through a tension spring 423, the driving mechanism is used for driving the ejector rod 41 to move up and down, the ejector rod 41 is located at the central position of the three connecting rod 421, the top end of the ejector rod 41 is provided with an inclined guide surface 411 which inclines downwards from the inside to the outside, wherein, the three joint piece 42 and the three stopper 31 are distributed at intervals along the circumferential direction, and the connecting rod 421 is in an arc shape.

When the driving mechanism drives the ejector rod 41 to move upwards, the inclined guide surface 411 of the ejector rod 41 contacts the bottom ends of the three connecting rods 421 and enables the bottom ends of the three connecting rods 421 to rotate outwards, at the moment, the hook part 422 rotates inwards and presses on the base 12 of the knuckle spacer 1, and the tension spring 423 stretches and generates resilience force; when the driving mechanism drives the pushing rod 41 to move downwards, the inclined guide surface 411 of the pushing rod 41 is separated from the bottom ends of the three connecting rods 421, the tension spring 423 is restored to rotate the bottom ends of the three connecting rods 421 inwards, and at this time, the hook 422 rotates outwards and is separated from the base 12 of the knuckle spacer 1.

In this embodiment, the lateral surface of base 2 inwards caves in and forms three mounting groove 24, and three mounting groove 24 and three connecting rod 421 one-to-one, and mounting groove 24 runs through base 2's upper and lower terminal surface, and mounting groove 24 internal fixation is provided with along the pivot 25 of horizontal direction extension, is provided with on the connecting rod 421 with pivot 25 complex second perforation 4211.

In this embodiment, the hook 422 is located between the upper end surface of the base 2 and the upper end surface of the stopper 31.

Claims

1. The utility model provides a fixture attachment of knuckle spacer which characterized in that includes base, horizontal stop gear and vertical stop gear, horizontal stop gear set up the base on, horizontal stop gear be used for with the lateral surface looks butt of the base of knuckle spacer, vertical stop gear with the base rotate and be connected, work as vertical stop gear when inwards overturning, vertical stop gear press the upper end face of the base of knuckle spacer on.

2. The fixture tool for the knuckle spacer according to claim 1, wherein the horizontal limiting mechanism comprises three limiting blocks which are distributed at equal intervals along the circumferential direction, the limiting blocks are detachably connected with the upper end face of the base, and the three limiting blocks enclose a space for the knuckle spacer to be placed.

3. The fixture tool for the steering knuckle spacer bush according to claim 2, wherein the limiting block comprises a baffle and a bottom plate, the lower end face of the baffle is fixedly connected with one side, facing the space, of the bottom plate, a first through hole is formed in the bottom plate, three screw holes distributed in the circumferential direction are formed in the upper end face of the base, the three first through holes correspond to the three screw holes in a one-to-one mode, and a bolt penetrates through the first through holes and is connected with the corresponding screw holes in a threaded mode.

4. The fixture tool for the steering knuckle spacer according to claim 3, wherein the bottom plate is provided with a first positioning hole, the upper end surface of the base is provided with a plurality of second positioning holes communicated with the first positioning hole, and the bolt penetrates through the first positioning hole and the second positioning holes communicated with the first positioning hole.

5. The fixture tool for the steering knuckle spacer according to claim 2, wherein a guide post is detachably arranged on the base and is located at the center of the space.

6. The fixture tool for the steering knuckle spacer bush according to claim 2, wherein the vertical limiting mechanism comprises a driving mechanism, a push rod and three clamping pieces, the three clamping pieces are distributed on the periphery of the space at equal intervals along the circumferential direction, the three clamping pieces are staggered with the three limiting blocks, each clamping piece comprises a connecting rod and a hook part fixedly arranged at the top end of the connecting rod, the middle part of the connecting rod is rotatably connected with the base, the lower parts of every two connecting rods are connected through a tension spring, the driving mechanism is used for driving the push rod to move up and down, the push rod is located at the center of the three connecting rods, and the top end of the push rod is provided with an inclined guide surface which inclines downwards from inside to outside;

when the driving mechanism drives the ejector rod to move upwards, the inclined guide surface of the ejector rod is contacted with the bottom ends of the three connecting rods and enables the bottom ends of the three connecting rods to rotate outwards, the hook part rotates inwards and presses the base of the steering knuckle spacer sleeve, and the tension spring stretches and generates resilience force; when the driving mechanism drives the ejector rod to move downwards, the inclined guide surface of the ejector rod is separated from the bottom ends of the three connecting rods, the tension spring is restored to enable the bottoms of the three connecting rods to rotate inwards, and the hook part rotates outwards and is separated from the base of the steering knuckle spacer bush.

7. The fixture tool for the steering knuckle spacer according to claim 6, wherein the outer side surface of the base is recessed inwards to form three mounting grooves, the three mounting grooves correspond to the three connecting rods one by one, the mounting grooves penetrate through the upper end surface and the lower end surface of the base, a rotating shaft extending in the horizontal direction is fixedly arranged in the mounting grooves, and second through holes matched with the rotating shaft are formed in the connecting rods.

8. The fixture tool for the steering knuckle spacer according to claim 6, wherein the hook is located between the upper end surface of the base and the upper end surface of the limiting block.