CN109570962B

CN109570962B - Knuckle bushing dismantling device and bushing dismantling method

Info

Publication number: CN109570962B
Application number: CN201910080804.XA
Authority: CN
Inventors: 黄建军; 麦仲文; 梁镇柱
Original assignee: Honda Foundry Foshan Co ltd
Current assignee: Honda Foundry Foshan Co ltd
Priority date: 2019-01-28
Filing date: 2019-01-28
Publication date: 2023-10-10
Anticipated expiration: 2039-01-28
Also published as: CN109570962A

Abstract

The invention discloses knuckle bushing dismantling equipment, which comprises a machine case, a clamping device and a dismantling device, wherein the machine case is provided with a workbench, the clamping device comprises a clamping plate and a base, the clamping plate is provided with a plurality of clamps, clamp drivers, supporting arms and positioning columns, the dismantling device is provided with a top pin, a top pin driver and a supporting frame, the supporting frame is fixedly arranged on the workbench, the top pin driver is fixedly arranged on the supporting frame, and a movable rod of the top pin driver penetrates through the supporting frame to be connected with the top pin; the invention also discloses a bushing dismantling method, which adopts knuckle bushing dismantling equipment, accurately positions the knuckle bushing by a positioning column, fastens the knuckle bushing by a clamp and a supporting arm, pushes a top pin to move downwards by a piston rod, and ejects the bushing out of the knuckle. The knuckle bushing dismantling device and the bushing dismantling method provided by the invention are simple to operate, the knuckle pin holes are prevented from being damaged in the knuckle bushing dismantling process, and the automobile knuckle bushing dismantling efficiency is improved.

Description

Knuckle bushing dismantling device and bushing dismantling method

Technical Field

The invention relates to the technical field of automobile assembly, in particular to knuckle bushing dismantling equipment and a bushing dismantling method.

Background

The knuckle is a hinge for steering wheels, is used as an important part of an automobile steering axle, can ensure stable running of an automobile and can quickly transfer the running direction, and in order to reduce abrasion, a knuckle bushing is pressed in a knuckle tip hole, the knuckle bushing is a joint for connecting the automobile knuckle and a frame, and the bushing is generally arranged between two components through interference fit, so that the rigid connection of the two components is avoided, and a buffer effect is achieved. When the lining is worn or aged and loses effect, the lining needs to be replaced, at present, the lining is usually removed by manually beating and burning rubber or using a press, the defect that the pin Kong Huashang is damaged due to inaccurate positioning and uneven stress exists in manual removal, the pin hole is deformed due to burning rubber, the defect that the pin hole is positioned inaccurately and scratched by the press exists in the press, and therefore, the prior art needs to be improved and improved.

Disclosure of Invention

In view of the shortcomings of the prior art, the invention aims to provide a knuckle bushing dismantling device and a bushing dismantling method, which aim to solve the defects that a tip hole is easy to damage and the speed is low in the knuckle bushing dismantling process in the prior art.

In order to achieve the above purpose, the invention adopts the following technical scheme:

a knuckle bushing removal apparatus, comprising: the machine case, clamping device and demolish the device, the machine case is equipped with the workstation, clamping device includes grip block and fixed mounting base on the workstation, the grip block is equipped with a plurality of anchor clamps, clamp driver, support arm and reference column, anchor clamps and support arm are used for fixing the knuckle on the grip block, demolish the device and be equipped with top, top driver and support frame, support frame fixed mounting is on the workstation, top driver fixed mounting is on the support frame, the movable rod of top driver passes the support frame and is connected with the top.

In the knuckle bushing dismantling device, the clamp is correspondingly arranged with the clamp driver, the movable rod of the clamp driver is hinged with the clamp to control the loosening and fastening of the clamp, the clamp comprises a first clamp, a second clamp and a third clamp, the first clamp and the second clamp are symmetrically arranged on two sides of the clamping plate, the third clamp is arranged in the middle of the clamping plate, and the clamp driver comprises a first clamp driver, a second clamp driver and a third clamp driver which are in one-to-one correspondence with the clamps.

In the knuckle bushing dismantling device, the support arms comprise a first support arm, a second support arm and a third support arm which are distributed in a triangular mode, the first support arm is located on the upper portion of the clamping plate, the second support arm and the third support arm are symmetrically arranged on the lower portion of the clamping plate, and the first support arm, the second support arm and the third support arm support the knuckle upwards.

In the knuckle bushing dismantling device, the tail end of the first support arm is a V-shaped opening, and the tail ends of the second support arm and the third support arm are provided with bulges.

In the knuckle bushing removal apparatus, the tip is cylindrical, and the diameter of the tip is smaller than the outer diameter of the bushing and larger than the inner diameter of the bushing.

In the knuckle bushing demolishs equipment, demolish the device still including the guide bar, the guide bar both sides are equipped with the guide post, the guide post is with guide bar parallel connection in the support frame below, be equipped with the guiding hole in the middle of the guide bar, the position and the top of guiding hole correspond with knuckle bushing, and size and top adaptation.

In the knuckle bushing dismantling device, the guide post is detachably connected with the support frame and the guide rod through nuts.

In the knuckle bushing removal apparatus, the apparatus is further provided with a controller that controls the opening and closing of the first, second, third and top drive signals.

A knuckle bushing removal method, wherein the method employs a knuckle bushing removal apparatus as described above, comprising the steps of:

s1, sleeving a steering knuckle corresponding positioning column on a supporting arm;

s2, starting a first clamp driver, a second clamp driver and a third clamp driver, wherein a driver movable rod moves outwards to push a clamp to clamp a steering knuckle;

s3, starting a top pin driver, enabling a movable rod of the top pin driver to move downwards, pushing the top pin to press downwards, and pressing the bushing out of the knuckle;

s4, closing the top pin driver, resetting the movable rod, and retracting the top pin;

s5, closing the first driver, the second driver and the third driver, resetting the movable rod, loosening the clamp, and removing the steering knuckle at the moment to finish the disassembly of the bushing.

The beneficial effects are that:

the invention provides a knuckle bushing dismantling device and a bushing dismantling method, wherein the knuckle bushing dismantling device is provided with a plurality of clamps and positioning columns, so that the knuckle is positioned more accurately and clamped more fixedly; the guide rod is arranged, so that the top pin can vertically align with the bushing, the movement direction of the piston and the top pin and the bushing are ensured to be on the same axis, and the top pin is pressed down by the driver to push out the bushing; the driver is controlled by the controller, so that the operation is more convenient and quick. Compared with the prior art, the positioning device has the advantages of being accurate in positioning, convenient to operate and free of scratching the knuckle pin hole.

Drawings

FIG. 1 is a schematic view of a knuckle bushing removal apparatus according to the present invention after clamping a knuckle;

FIG. 2 is a schematic view of a clamping device;

fig. 3 is an enlarged view of the position a in fig. 2:

FIG. 4 is a schematic view of the structure of the clamping plate after clamping the knuckle;

fig. 5 is a schematic view of the construction of the demolition arrangement.

Detailed Description

The invention provides a knuckle bushing dismantling device and a bushing dismantling method, which are used for making the purpose, the technical scheme and the effect of the invention clearer and more definite, and the invention is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1-5, a knuckle bushing removal apparatus, comprising: the machine case is provided with a workbench 110, the clamping device comprises a clamping plate 210 and a base 220 fixedly installed on the workbench 110, the clamping plate is provided with a plurality of clamps, clamp drivers, supporting arms and positioning columns, the clamps and the supporting arms are used for fixing a knuckle 500 on the clamping plate 210, the removing device is provided with a support frame 310, a top pin 320 and a top pin driver 330, the support frame 310 is fixedly installed on the workbench 110, the top pin driver 330 is fixedly installed on the support frame 310, and a movable rod of the top pin driver 330 penetrates through the support frame 310 to be connected with the top pin 320.

According to the invention, the knuckle 500 is accurately fixed in the bushing dismantling device by arranging the clamping device and the dismantling device, and the top pin 320 of the dismantling device is pushed by the top pin driver 330 to eject the bushing 520 into the knuckle. The positioning columns 260 arranged on the clamping plate can accurately position the steering knuckle, the positioning columns 260 are generally arranged according to the shape of the steering knuckle, in the structure, the steering knuckle 500 comprises a plurality of symmetrically distributed circular holes, the positioning columns 260 are arranged according to the positions of the circular holes, circular holes close to the periphery of the bushing are selected as positioning holes and are symmetrically distributed left and right, the size of the positioning columns 260 is matched with the circular holes of the steering knuckle, and the number of the positioning columns is more than 3, so that the steering knuckle 500 can be accurately positioned; the clamp and the support arm can stably fix the knuckle 500 in the clamping device without being deviated due to downward impact force, thereby preventing the knuckle tip hole 510 from being damaged; the tip 320 is pushed by the tip driver 330, exerting a uniform downward pressure on the bushing 520, so as not to impact strongly the knuckle tip bore 510. The method can accurately position the steering knuckle and stably clamp the steering knuckle, so that the bushing 520 is ensured not to damage the steering knuckle tip hole 510 in the dismantling process.

It should be noted that the driver in the present invention may be a cylinder, an oil cylinder, a hydraulic cylinder or other devices capable of driving the clamp and the top pin to move. Preferably, the actuator is more easily operable when it is a cylinder. More preferably, the cylinder is a one-way cylinder, and is reset through a spring, so that the actual operation is easier.

Further, the clamps are in one-to-one correspondence with the clamp drivers, the movable rods of the clamp drivers are hinged with the clamps to control the loosening and fastening of the clamps, the clamps comprise a first clamp 231, a second clamp 232 and a third clamp 233, the first clamp 231 and the second clamp 232 are symmetrically arranged on two sides of the clamping plate 210, the third clamp 233 is arranged in the middle of the clamping plate 210, and the clamp drivers comprise a first clamp driver 241, a second clamp driver 242 and a third clamp driver 243 which are in one-to-one correspondence with the clamps. The clamping device is provided with a plurality of clamps used for fastening the knuckle from a plurality of positions, so that the knuckle is more stably fixed on the clamping plate. The clamp driver is used for driving the clamp to realize fastening and loosening actions, as shown in fig. 3, the clamp is hinged with a movable rod of the clamp driver, the clamp can move along the surface where the clamp and the movable rod are located by 90 degrees in a connecting mode, and the clamp is pushed by the driver, so that fastening and loosening actions of the clamp on the steering knuckle are realized. In the implementation process, the first clamp 231 and the second clamp 232 are fastened to the middle, and the third clamp 233 is fastened to the lower side, so as to prevent the knuckle 500 from being pushed by the top pin 320 to shift left and right or front and back.

Further, the support arms include a first support arm 251, a second support arm 252 and a third support arm 253 that are distributed in a triangle shape, the first support arm 251 is located at the upper portion of the clamping plate 210, the second support arm 252 and the third support arm 253 are symmetrically disposed at the lower portion of the clamping plate 210, and the support arms support the steering knuckle upwards. The support arms are distributed in a triangular mode, the steering knuckle can be stably supported upwards, and of course, the number and the positions of the support arms can be adjusted according to the shape and the weight of the steering knuckle, so that the steering knuckle can be stably supported.

Preferably, the free ends of the first support arms 251 are V-shaped openings, and the ends of the second support arms 252 and the third support arms 253 are provided with protrusions. The first support arm 251 corresponds to the position of the knuckle tip hole 510, which is the position with the greatest stress in the bushing dismantling process, the larger the contact area between the first support arm 251 and the knuckle is, the smaller the local pressure is, but the length of the first support arm cannot exceed the position from the clamping plate to the tip hole, in order to increase the supporting area, the free end of the first support arm is set to be a V-shaped opening, so that the support arm can not only prevent the bushing from being blocked to be pressed downwards, but also increase the supporting area of the support arm on the knuckle; the second support arm 252 and the third support arm 253 are longer than the first support arm 251 in length and are used for supporting the bottom of the steering knuckle, and the tail ends of the second support arm 252 and the third support arm 253 are provided with protrusions so as to prevent the steering knuckle from being separated due to forward displacement caused by stress.

Preferably, the tip 320 is cylindrical, and the diameter of the tip 320 is smaller than the outer diameter of the bushing 520 and larger than the inner diameter of the bushing 520. The pin 320 is cylindrical, and is adapted to the shape of the pin hole 510, and has a diameter between the outer diameter and the inner diameter of the bushing 520, so that when the pin 320 is pressed down, the bushing is forced, and the pin hole 510 is not contacted, so that the inner wall of the pin hole 510 is prevented from being scratched.

Preferably, the dismounting device further comprises a guide rod 340, guide columns 341 are arranged on two sides of the guide rod 340, the guide columns 341 connect the guide rod 340 below the supporting frame 310 in parallel, a guide hole 342 is arranged in the middle of the guide rod 340, and the position of the guide hole 342 corresponds to the top pin 320 and the knuckle bushing 520, and the size of the guide hole is matched with the top pin 310. The guide posts 341 are disposed on two sides of the guide rod 340, the guide posts 341 penetrate the support frame 310, the guide rod 340 is connected in parallel to the lower portion of the support frame 310, the guide holes 342 are formed in the middle of the guide rod 340, the guide holes 342 are adapted to the pins, the pins penetrate the guide holes to act on the bushings 520, the pins are guaranteed to move in a fixed direction, the pins are prevented from being deviated, and therefore the pin holes 510 are not scratched.

More preferably, the guide column 341 is detachably connected to the support frame 310 and the guide rod 340 by a nut, and the guide column 341 is vertically adjustable. The guide column 341 adopts a mode of nut fixation, is convenient to detach and adjust, and is positioned by adjusting the position of the guide column, so that the guide hole is positioned at an optimal guide position.

Preferably, the apparatus is further provided with a controller 400, the controller 400 controlling the opening and closing of the first clamp driver 241, the second clamp driver 242, the third clamp driver 243 and the tip driver 330. The driver can be controlled manually or by a controller, and preferably, the controller is more convenient to control.

It should be noted that, the clamping device may further be provided with a supporting leg 270, and the clamping plate 210 is fixed at the middle part of the base 220 by the supporting leg 270, so as to ensure that the center of gravity of the clamping plate 210 falls in the middle of the base 220; furthermore, the case can be provided with a case outer cover 120, and the case outer cover 120 can adopt a mode of matching a metal framework with a glass plate, so that operators can be prevented from being injured by accidents in the implementation process, and the dismounting condition of the bushing can be conveniently observed.

A knuckle bushing removal method employing a knuckle bushing removal apparatus as described above, comprising the steps of:

s1, sleeving a positioning column 260 corresponding to a steering knuckle 500 on a supporting arm, positioning the steering knuckle 500 on a clamping plate 210 through the positioning column, and sleeving a first supporting arm 251, a second supporting arm 252 and a third supporting arm 253 corresponding to the steering knuckle 500;

s2, starting a first clamp driver 241, a second clamp driver 242 and a third clamp driver 243, wherein a driver movable rod pushes a clamp to clamp the steering knuckle, so that the steering knuckle is stably fixed on a clamping plate;

s3, starting the top pin driver 330, and enabling the driver to push the top pin 320 downwards, so that the bushing 520 is pressed out of the knuckle. By positioning the positioning column, the knuckle pin hole 510 and the guide hole 342 are on the same axis, the top pin 320 passes through the guide hole 342 and is aligned with the bushing 520, and the guide hole 342 limits the top pin 320 from shifting, so that the top pin 320 can not touch the inner wall of the pin hole 510 in the process of ejecting the bushing 520;

s4, closing the top pin driver 330, resetting the movable rod, and retracting the top pin 320 upwards;

s5, closing the first clamp driver 241, the second clamp air cylinder 242 and the third clamp air cylinder 243, resetting the corresponding movable rods, and loosening the clamp, so that the knuckle 500 can be removed at the moment, and the bushing 520 is detached.

The bushing dismantling method is simple and feasible, is accurate in positioning, can improve the bushing dismantling speed, and does not scratch the pin holes. According to the method, accurate positioning of the pin holes is achieved through the positioning holes, the steering knuckle is lifted upwards through the supporting arms, the steering knuckle is fastened through the clamp, the pins are accurately aligned with the bushings through the guiding holes, the bushings are pressed out of the steering knuckle through pressing the pins down through the air cylinders, and detachment of the steering knuckle bushings is achieved.

It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.

Claims

1. A knuckle bushing removal apparatus, comprising: the machine case is provided with a workbench, the clamping device comprises a clamping plate and a base fixedly arranged on the workbench, the clamping plate is provided with a plurality of clamps, clamp drivers, supporting arms and positioning columns, the clamps and the supporting arms are used for fixing the steering knuckle on the clamping plate, the removing device is provided with a top pin, a top pin driver and a supporting frame, the supporting frame is fixedly arranged on the workbench, the top pin driver is fixedly arranged on the supporting frame, and a movable rod of the top pin driver penetrates through the supporting frame to be connected with the top pin; the clamping devices are in one-to-one correspondence with the clamping device drivers, the movable rods of the clamping device drivers are hinged with the clamping devices to control the loosening and fastening of the clamping devices, the clamping devices comprise a first clamping device, a second clamping device and a third clamping device, the first clamping device and the second clamping device are symmetrically arranged on two sides of the clamping plate, the third clamping device is arranged in the middle of the clamping plate, and the clamping device drivers comprise a first clamping device driver, a second clamping device driver and a third clamping device driver which are in one-to-one correspondence with the clamping devices; the support arm is including being triangle distribution's first support arm, second support arm and third support arm, first support arm is located the upper portion of grip block, second support arm and third support arm symmetry set up in the grip block lower part, first support arm, second support arm, third support arm upwards hold up the knuckle.

2. The knuckle bushing removal apparatus of claim 1, wherein the free ends of the first support arm are V-shaped openings and the free ends of the second and third support arms are provided with protrusions.

3. The knuckle bushing removal apparatus of claim 1, wherein said tips are cylindrical, the diameter of said tips being smaller than the outer diameter of the bushing and larger than the inner diameter of the bushing.

4. The knuckle bushing removal apparatus of claim 1, wherein the removal device further comprises guide bars, guide posts are provided on both sides of the guide bars, the guide posts connect the guide bars in parallel below the support frame, guide holes are provided in the middle of the guide bars, and the positions of the guide holes correspond to the pins and knuckle bushings, and the guide holes are sized to fit the pins.

5. The knuckle bushing removal apparatus of claim 4, wherein said guide post removably connects the support bracket and the guide bar by a nut.

6. The knuckle bushing removal apparatus of any of claims 1-5, further comprising a controller that controls opening and closing of the first clamp driver, the second clamp driver, the third clamp gas driver, and the top pin driver.

7. A method of knuckle bushing removal using the knuckle bushing removal apparatus of claim 6, comprising the steps of:

s3, closing the top pin driver, resetting the movable rod, and retracting the top pin;

s4, closing the first driver, the second driver and the third driver, resetting the movable rod, loosening the clamp, and removing the steering knuckle at the moment to finish the disassembly of the bushing.