Vehicle steering knuckle clamp mechanism

Abstract

The utility model relates to a vehicle steering knuckle clamp mechanism which comprises a left clamp arm and a right clamp arm which are oppositely arranged, a left clamping table is fixedly arranged on the top face of the left clamp arm, the top face of the left clamping table is an inclined face rising from left to right, and the right clamp arm and the left clamp arm are symmetrical. The main frame is further provided with a first locking mechanism and a second locking mechanism, the first locking mechanism and the second locking mechanism are in bilateral symmetry, the first locking mechanism comprises a first telescopic device and a first locking block installed at the extending end of the first telescopic device, and the bottom face of the first locking block is matched with the top face of the left clamping table. The left clamp arm and the right clamp arm are driven by the driving device to move close to each other, so that the steering knuckle is transversely clamped; the first telescopic device and the second telescopic device extend out, outward movement of the left clamping table is limited through the inclined bottom face of the first locking block, outward movement of the right clamping table is limited through the inclined bottom face of the second locking block, and therefore reliable locking of the clamped steering knuckle is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering knuckle transfer equipment, especially to the loading and unloading clamping of steering knuckle blanks and finished products, and specifically refers to a clamping mechanism for vehicle steering knuckles. Background Technique

[0002] The steering knuckle is an important part in the vehicle steering bridge. Its structure mainly includes a main shaft and a fork-shaped structure arranged at one end of the main shaft. Its function is mainly to ensure the stable driving and reliable steering of the vehicle. At present, automated machine tools are mostly used to process steering knuckle blanks to obtain steering knuckle finished products.

[0003] During the processing of steering knuckles, the loading and unloading operations mostly adopt manual clamping. After being clamped and lifted by a hoisting device and a traditional clamp, the workpiece is fed to the equipment for processing. This processing method has a high labor intensity for workers. Moreover, since the shapes of both the steering knuckle blank and the finished product are irregular, the center of the workpiece cannot be accurately determined, and it is easy to loosen after clamping. Therefore, during hoisting, the workpiece and the clamp need to be adjusted multiple times, resulting in low loading and unloading efficiency, thus affecting the improvement of processing efficiency. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a clamping mechanism for vehicle steering knuckles, which not only realizes the clamping of the steering knuckle, but also sets anti-loosening for the clamping of the steering knuckle, ensuring the clamping efficiency.

[0005] The utility model is realized through the following technical solutions. A clamping mechanism for vehicle steering knuckles is provided, which includes a left clamping arm and a right clamping arm oppositely arranged on a main frame, and a driving device for driving the left clamping arm and the right clamping arm to move relatively. A left clamping platform is fixedly arranged on the top surface of the left clamping arm, and the top surface of the left clamping platform is an inclined surface rising from left to right. A right clamping platform is fixedly arranged on the top surface of the right clamping arm, and the top surface of the right clamping platform is an inclined surface rising from right to left.

[0006] The main frame is also provided with a first locking mechanism corresponding to the left clamping arm and a second locking mechanism corresponding to the right clamping arm. The first locking mechanism includes a first telescopic device installed on the main frame and a first locking block installed at the extending end of the first telescopic device. The first locking block is located above the left clamping platform, and the bottom surface of the first locking block is adapted to the top surface of the left clamping platform. The second locking mechanism includes a second telescopic device installed on the main frame and a second locking block installed at the extending end of the second telescopic device. The second locking block is located above the right clamping platform, and the bottom surface of the second locking block is adapted to the top surface of the right clamping platform.

[0007] When this solution is in use, the driving device drives the left and right clamp arms to move closer to clamp the outer side wall of the steering knuckle fork-shaped structure. Then, by extending the first telescopic device and the second telescopic device, the bottom surface of the first locking block presses against the top surface of the left clamping platform, and the bottom surface of the second locking block presses against the top surface of the right clamping platform. The inclined bottom surfaces of the two locking blocks are used to restrict the left and right clamping platforms from moving away from each other, achieving locking, thereby preventing the left and right clamp arms from moving outwards and ensuring the clamping of the steering knuckle.

[0008] As an optimization, a card slot penetrating in the left-right direction is formed in the first locking block. An opening penetrating downward to the card slot is provided on the top surface of the first locking block. The width of the opening is smaller than the width of the card slot. The protruding end of the first telescopic device is installed with a card block extending downward through the opening into the card slot. The width of the lower end of the card block is greater than the width of the opening. The first locking block of this optimized solution is connected to the first telescopic device through the card block, and the step formed by the lower end of the card block is used to support the first locking block. The structure is simple, and the reliability of driving the first locking block to move up and down is high.

[0009] As an optimization, a protrusion extending downward is fixedly provided on the bottom surface of the card block, and a counterbore adapted to the protrusion is provided at the bottom of the card slot. This optimized solution prevents the relative displacement in the left-right direction between the card block and the first locking block by setting the protrusion and the counterbore, further ensuring the clamping effect of the clamp arm.

[0010] As an optimization, both the left and right clamp arms include a main arm extending in the left-right direction and a jaw arm extending downward from the main arm. A clamping jaw is formed between the two jaw arms. A guiding frame adapted to and slidably connected to the main arm is fixedly provided on the main frame. The left and right clamp arms of this optimized solution have a simple structure and low manufacturing difficulty. By setting the guiding frame on the main frame, the left and right movements of the left and right clamp arms are respectively guided, ensuring that the force application directions to the steering knuckle are opposite, and further ensuring the clamping effect.

[0011] As an optimization, insert jaws are respectively detachably and fixedly connected to the jaw arms of the left clamp arm and the jaw arm of the right clamp arm, and the insert jaws of the left clamp arm and the insert jaws of the right clamp arm are arranged opposite to each other in the left-right direction. This optimized solution detachably sets the insert jaws, which is convenient for replacing the insert jaws to respectively meet the clamping requirements for the finished steering knuckle and the rough blank of the steering knuckle.

[0012] As an optimization, the driving device includes an oil cylinder installed on the main frame and extending downward. A driving block is installed at the lower end of the piston rod of the oil cylinder. The driving block is provided with two inclined guide grooves symmetrically arranged left and right, and the upper end spacing of the two inclined guide grooves is smaller than the lower end spacing. The left clamp arm is provided with an inclined rail adapted to the left inclined guide groove, and the right clamp arm is provided with an inclined rail adapted to the right inclined guide groove. The driving device of this optimization scheme uses the oil cylinder to provide the clamping power. When the oil cylinder drives the driving block to move downward, the left and right clamp arms move closer under the action of the horizontal component force of the inclined guide grooves, realizing translational clamping.

[0013] As an optimization, the driving block is trapezoidal. Hanging plates are fixedly arranged on the front and rear side surfaces of the driving block respectively. Hanging grooves penetrating in the left-right direction are formed on the opposite side surfaces of the two hanging plates. The lower end of the piston rod of the oil cylinder is fixedly equipped with a hanging shaft extending downward between the two hanging plates, and a support platform adapted to the two hanging grooves is fixedly arranged on the hanging shaft. In this optimization scheme, the driving block is set as trapezoidal, and the side edges of the trapezoid are respectively parallel to the two inclined guide grooves, while reducing the weight of the driving block itself; the hanging of the hanging grooves is formed by the arranged support platform, ensuring the reliability of driving the driving block to move in the vertical direction.

[0014] The beneficial effects of the present utility model are as follows: By driving the left clamp arm and the right clamp arm to move closer by the driving device, the transverse clamping of the knuckle fork-shaped structure is realized; by the extension of the first telescopic device and the second telescopic device, the outward movement of the left clamping platform is restricted by the inclined bottom surface of the first locking block, and the outward movement of the right clamping platform is restricted by the inclined bottom surface of the second locking block, thereby realizing the reliable locking of the clamped knuckle. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the use state of the present utility model;

[0016] Figure 2 is a three-dimensional Figure Ⅰ (removing the rear side plate of the main frame and the left guide frame);

[0017] Figure 3 is Figure 2 a partial enlarged view in;

[0018] Figure 4 is a schematic diagram of the connection between the first locking block and the block;

[0019] Figure 5 is a schematic diagram of the connection between the left clamp arm, the right clamp arm and the driving block;

[0020] Figure 6 is a three-dimensional Figure Ⅱ of the present utility model (removing the main frame and the right guide frame);

[0021] Figure 7 is Figure 6 a partial enlarged view in;

[0022] Figure 8 the side view of the second locking block.

[0023] As shown in the figure:

[0024] 1. Left clamping arm, 2. Main frame, 3. First telescopic device, 4. Oil cylinder, 5. Second telescopic device, 6. Guide frame, 7. Spring, 8. Right clamping arm, 9. Insert block jaw, 10. Driving block, 11. First locking block, 12. Left clamping platform, 13. Card slot, 14. Hanging shaft, 15. Card block, 16. Hanging plate, 17. Guide rod, 18. Fixed plate, 19. Right clamping platform. Specific implementation mode

[0025] Aiming at the problem that the overall shape of the commercial vehicle steering knuckle is irregular and not convenient to clamp, this embodiment provides a clamp mechanism for clamping the outer side surface of the fork-shaped structure of the steering knuckle. In order to clearly illustrate the technical characteristics of this solution, the following is an elaboration of this solution through specific implementation modes.

[0026] Such as Figure 1 、 2 As shown in FIGS. 6, a vehicle steering knuckle clamp mechanism includes a main frame 2, a left clamping arm 1 and a right clamping arm 8 arranged oppositely along the transverse direction on the main frame 2, and a driving device for driving the left clamping arm and the right clamping arm to move relatively. The main frame includes a top plate, a rear side plate, a bottom plate and a front side plate fixedly connected in sequence along the circumferential direction at the head and tail, forming a hollow frame structure, which is beneficial to reducing weight.

[0027] A left clamping platform 12 is fixedly arranged on the top surface of the left clamping arm. The top surface of the left clamping platform is an inclined surface rising from left to right. A right clamping platform 19 is fixedly arranged on the top surface of the right clamping arm. The top surface of the right clamping platform is an inclined surface rising from right to left. And the left clamping platform and the right clamping platform are symmetrically arranged left and right.

[0028] The main frame is also provided with a first locking mechanism corresponding to the left clamping arm and a second locking mechanism corresponding to the right clamping arm. The first locking mechanism includes a first telescopic device 3 installed on the main frame and a first locking block 11 installed at the extending end of the first telescopic device. The extending direction of the first telescopic device is perpendicular to the moving direction of the left clamping arm. The first locking block 11 is located above the left clamping platform 12, and the bottom surface of the first locking block is adapted to the top surface of the left clamping platform. The second locking mechanism includes a second telescopic device 5 installed on the main frame and a second locking block installed at the extending end of the second telescopic device. The extending direction of the second telescopic device is perpendicular to the moving direction of the right clamping arm. The second locking block is located above the right clamping platform, and the bottom surface of the second locking block is adapted to the top surface of the right clamping platform. Both the first telescopic device 3 and the second telescopic device 5 adopt air cylinders to ensure the rapidity of the locking action.

[0029] A first locking block is provided with a clamping groove 13 penetrating in the left - right direction. The top surface of the first locking block is provided with an opening penetrating downward to the clamping groove 13. The width of the opening in the front - back direction is smaller than the width of the clamping groove in the front - back direction. The side wall of the opening and the side wall of the clamping groove form a limiting platform. The extending end of the first telescopic device is installed with a clamping block 15 extending downward through the opening into the clamping groove. The width of the lower end of the clamping block is greater than the width of the opening.

[0030] After the left clamping arm and the right clamping arm clamp the steering knuckle, the first telescopic device extends downward. The bottom surface of the first locking block falls on the top surface of the left clamping platform. The downward thrust of the first telescopic device presses the first locking block through the clamping block, so that the first locking block is in close contact with the left clamping platform. By using the function of the inclined plane, the left clamping arm is prevented from moving outward, realizing the locking of the left clamping arm.

[0031] The second locking block is symmetric with the first locking block about the left - right direction. The extending end of the second telescopic device is installed with a clamping block extending downward through the opening of the second locking block into the clamping groove. The locking principle of the right clamping arm is the same as that of the left clamping arm.

[0032] In order to prevent relative displacement in the left - right direction between the clamping block and the first locking block and the second locking block, a downward - extending protrusion is fixedly provided on the bottom surface of the clamping block 15, and a counterbore adapted to the protrusion is provided at the bottom of the clamping groove.

[0033] The left clamping arm and the right clamping arm are symmetric about the left - right direction. The left clamping arm and the right clamping arm both include a main arm extending in the left - right direction and a clamping jaw arm extending downward from the main arm. A clamping jaw is formed between the two clamping jaw arms. A guiding frame 6 adapted to and slidably connected with the main arm is fixedly provided on the main frame. The cross - section of the main arm is rectangular. A guiding hole adapted to the cross - section of the main arm is provided in the guiding frame. The guiding hole extends in the left - right direction, and the main arm slides left - right along the guiding hole. The guiding frame is in two pieces, symmetric about the left - right direction. The left - hand guiding frame provides guidance for the left clamping arm, and the right - hand guiding frame provides guidance for the right clamping arm.

[0034] Guide rods 17 extending toward the side where the clamped steering knuckle is located are respectively fixedly provided on the two clamping jaw arms. Two fixing plates 18 opposite to the two guide rods are fixedly provided on the bottom surface of the main frame. The two fixing plates are arranged left - right. A through - hole for the guide rod on the corresponding side to pass through is provided on each fixing plate. A spring 7 sleeved on the left - hand guide rod is arranged between the left - hand fixing plate and the left - hand clamping jaw arm, and a spring sleeved on the right - hand guide rod is arranged between the right - hand fixing plate and the right - hand clamping jaw arm. The elastic force of the spring is used to buffer the clamping action to a certain extent, and when the two clamping jaw arms are loosened, it is faster.

[0035] In order to separately meet the requirements of gripping the rough steering knuckle and the finished steering knuckle, insert block jaws 9 are detachably fixed to the jaw arms of the left clamping jaw arm and the right clamping jaw arm of this embodiment by bolts respectively, and the insert block jaws of the left clamping jaw arm and the insert block jaws of the right clamping jaw arm are arranged opposite to each other in the left-right direction. During use, the insert block jaws grip the outer side surface of the forked structure of the steering knuckle. The insert block jaws adopt the prior art, and their structure mainly includes a jaw plate and a buffer pad arranged on the side of the jaw plate facing the workpiece to prevent scratching the clamping surface of the workpiece.

[0036] The driving device includes an oil cylinder 4 installed on the main frame and extending downward. A driving block 10 is installed at the lower end of the piston rod of the oil cylinder. Two inclined guide grooves are symmetrically arranged on the left and right on the driving block, and the distance between the upper ends of the two inclined guide grooves is smaller than the distance between the lower ends. An inclined rail adapted to the left inclined guide groove is provided on the left clamping jaw arm, and an inclined rail adapted to the right inclined guide groove is provided on the right clamping jaw arm.

[0037] The driving block of this embodiment is trapezoidal. A weight-reducing round hole is opened in the middle of the driving block. The two inclined sides of the trapezoid are respectively parallel to the two inclined guide grooves. Hanging plates 16 are respectively fixed to the front and rear side surfaces of the driving block. Hanging grooves penetrating in the left-right direction are opened on the opposite side surfaces of the two hanging plates. The two hanging grooves on both sides are arranged opposite to each other. The lower end of the piston rod of the oil cylinder is fixedly equipped with a hanging shaft 14 extending downward between the two hanging plates. A support platform adapted to the two hanging grooves is fixed on the hanging shaft. The hanging grooves are located above the driving block in the height direction.

[0038] The clamping jaw mechanism of this embodiment is overall symmetrical about the central axis of the oil cylinder. When the oil cylinder extends, by using the lateral component forces of the inclined guide grooves of the driving block on the left clamping jaw arm and the right clamping jaw arm, the left clamping jaw arm and the right clamping jaw arm move closer to each other to realize the gripping of the steering knuckle. Then, the two air cylinders extend respectively and press the first locking block and the second locking block through the clamping blocks respectively, so that the bottom surface of the first locking block is tightly attached to the top surface of the left clamping platform, and the bottom surface of the second locking block is tightly attached to the top surface of the right clamping platform. By using the effect of the inclined surface, it is prevented that the left clamping jaw arm and the left clamping jaw arm move away from each other, realizing the locking of the left clamping jaw arm and the right clamping jaw arm, and ensuring the clamping effect on the steering knuckle.

[0039] Certainly, the above description is not limited to the above examples. The technical features not described in this utility model can be realized by or adopted the prior art, and will not be elaborated here; the above embodiments and drawings are only used to illustrate the technical solutions of this utility model and are not a limitation to this utility model. The technical solutions of this utility model are described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the changes, modifications, additions or substitutions made by those of ordinary skill in this technical field within the essence scope of this utility model do not depart from the purpose of this utility model and should also belong to the protection scope of the claims of this utility model.

Claims

1. A vehicle steering knuckle clamp mechanism, comprising a left clamp arm (1) and a right clamp arm (8) arranged relative to each other on a main frame (2), and a driving device for driving the left clamp arm and the right clamp arm to move relative to each other, characterized in that: A left clamping platform (12) is fixedly provided on the top surface of the left clamping arm, and the top surface of the left clamping platform is an inclined surface rising from left to right; a right clamping platform (19) is fixedly provided on the top surface of the right clamping arm, and the top surface of the right clamping platform is an inclined surface rising from right to left; The main frame is also provided with a first locking mechanism corresponding to the left clamp arm and a second locking mechanism corresponding to the right clamp arm, the first locking mechanism comprising a first telescopic device (3) mounted on the main frame, and a first locking block (11) mounted on the protruding end of the first telescopic device, the first locking block (11) being located above the left card platform (12), and the bottom surface of the first locking block is adapted to the top surface of the left card platform; the second locking mechanism comprises a second telescopic device (5) mounted on the main frame, and a second locking block mounted on the protruding end of the second telescopic device, the second locking block being located above the right card platform, and the bottom surface of the second locking block is adapted to the top surface of the right card platform.

2. A vehicle steering knuckle clamp mechanism according to claim 1, characterized in that: The first locking block is provided with a slot (13) extending in the left-right direction, the top surface of the first locking block is provided with an opening extending downward to the slot (13), the width of the opening being smaller than the width of the slot, and the protruding end of the first telescopic device is provided with a block (15) extending downward through the opening into the slot, the width of the lower end of the block being larger than the width of the opening.

3. A vehicle steering knuckle clamp mechanism according to claim 2, characterized in that: A protrusion extending downward is fixedly provided on the bottom surface of the clamping block (15), and a countersunk hole matching the protrusion is provided at the bottom of the clamping slot.

4. A vehicle steering knuckle clamp mechanism according to claim 1, characterized in that: The left clamp arm and the right clamp arm both comprise a main arm extending in the left-right direction and a clamping claw arm extending downward from the main arm, a jaw opening is formed between the two clamping claw arms, and a guide frame (6) adapted to and slidably connected with the main arm is fixedly provided on the main frame.

5. A vehicle steering knuckle clamp mechanism according to claim 4, characterized in that: The clamping jaws of the left clamping arm and the clamping jaws of the right clamping arm are respectively detachably fixed with an inlay clamping jaw (9), and the inlay clamping jaws of the left clamping arm and the inlay clamping jaws of the right clamping arm are arranged opposite to each other in the left-right direction.

6. A vehicle steering knuckle clamp mechanism according to claim 1, characterized in that: The driving device comprises an oil cylinder (4) mounted on the main frame and extending downward, a driving block (10) being mounted at the lower end of the piston rod of the oil cylinder, the driving block being provided with two inclined guide grooves symmetrically arranged on the left and right, and the upper end spacing of the two inclined guide grooves being smaller than the lower end spacing, the left clamp arm being provided with an inclined rail adapted to the inclined guide groove on the left, and the right clamp arm being provided with an inclined rail adapted to the inclined guide groove on the right.

7. A vehicle steering knuckle clamp mechanism according to claim 6, characterized in that: The driving block is trapezoidal, and the front and rear sides of the driving block are respectively fixedly provided with hanging plates (16), and the opposite sides of the two hanging plates are provided with hanging grooves that penetrate in the left and right directions, and the lower end of the piston rod of the oil cylinder is fixedly provided with a hanging shaft (14) extending downward to between the two hanging plates, and a support platform adapted to the two hanging grooves is fixedly provided on the hanging shaft.

Images