Steering knuckle clamping tool and steering knuckle fork arm milling vertical machine tool

Abstract

The utility model relates to a steering knuckle clamping tool and a steering knuckle fork arm milling vertical machine tool, which comprise a case, a clamping piece I and a clamping piece II, the bottom surface of the case is provided with a positioning through hole for a shaft lever of a steering knuckle to pass through, and the clamping piece I and the clamping piece II are arranged on the bottom surface of the case and jointly act to clamp a top tray of the steering knuckle. A shaft rod of the steering knuckle is inserted into the positioning through hole, the steering knuckle is conveniently clamped and positioned, meanwhile, the steering knuckle is limited, the steering knuckle is prevented from deviating, the second clamping piece enables the second pressing plate to clamp a top disc of the steering knuckle through stretching and retracting of the second hydraulic cylinder, supporting force is provided for the steering knuckle, and the steering knuckle can be conveniently clamped and positioned. And then a first telescopic cylinder of the first clamping piece drives a first pressing plate to further clamp the top disc, through the common clamping effect of the first clamping piece and the second clamping piece, the clamping stability and firmness are guaranteed, overall use is convenient and fast, and the clamping efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering knuckle processing, in particular to a steering knuckle clamping tool and a steering knuckle fork arm milling vertical machine tool. Background Art

[0002] The steering knuckle is one of the important components of the steering axle of a car, which can make the car stable and sensitively transmit the driving direction. Figure 1 As shown, the steering knuckle 8 is generally fork-shaped, comprising a tapered shaft 81. A top plate 82 is machined onto the larger diameter end of the shaft, upon which two fork arms 84 are machined. Each fork arm has coaxial holes for mounting the kingpin. Milling the two side faces of the fork arms 84 is a crucial step in the machining of the steering knuckle, ensuring precise width control.

[0003] In existing milling processes, a commonly used modular fixture on machine tools is typically used to clamp the steering knuckle. The milling cutter mechanism on the machine tool then mills the sides of the two fork arms. Because the steering knuckle is a complex, irregularly shaped component, replacing and clamping it with the existing modular fixture is complex and inefficient, leading to low overall machining efficiency. This requires a high level of operator proficiency. Therefore, selecting a fixture that allows for quick clamping is crucial. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a steering knuckle clamping tool and a steering knuckle fork arm milling vertical machine tool, which greatly improves the steering knuckle clamping speed, is convenient to operate, and improves processing efficiency.

[0005] The utility model is achieved through the following technical scheme: a steering knuckle clamping tool, comprising a chassis, a clamping part 1 and a clamping part 2, the bottom surface of the chassis is provided with a positioning through hole for the shaft rod of the steering knuckle to pass through, the clamping part 1 and the clamping part 2 are arranged on the bottom surface of the chassis and work together to clamp the top plate of the steering knuckle; the clamping part 1 comprises a telescopic cylinder 1 and a pressure rod 1 fixed on the chassis, one end of the pressure rod 1 is hinged to the telescopic end of the telescopic cylinder 1, the other end of the pressure rod 1 contacts the top plate, and the middle part of the pressure rod 1 is hinged to the telescopic cylinder 1 through a connecting rod; the clamping part 2 comprises a telescopic cylinder 2 and a pressure rod 2 fixed on the chassis, the telescopic end of the telescopic cylinder 2 is fixed to one end of the pressure rod 2, and the other end of the pressure rod 2 contacts the top plate.

[0006] This solution facilitates the clamping and positioning of the steering knuckle by inserting the shaft rod of the steering knuckle into the positioning through hole, and at the same time limits the steering knuckle to prevent the steering knuckle from shifting. The clamping part two is extended and retracted by the hydraulic cylinder two to enable the pressure plate two to clamp the top plate of the steering knuckle, providing support force for the steering knuckle, and then the telescopic cylinder one of the clamping part one drives the pressure plate one to further clamp the top plate. The joint clamping action of the clamping part one and the clamping part two ensures the clamping stability and firmness, and the overall use is convenient, and the clamping efficiency is greatly improved.

[0007] As an optimization, two clamping members 1 and 2 are provided, and the two clamping members 1 and the two clamping members 2 are located on both sides of the top plate and arranged opposite to each other in the axial direction. This optimization solution further enhances stability by clamping the two clamping members 1 and the two clamping members 2 on both sides of the top plate.

[0008] As an optimization, the ends of the first and second pressure rods that contact the top plate are both screwed with a tightening screw, and one end of the tightening screw contacts the end surface of the top plate. This optimization solution reduces the clamping gap between the pressure plate and the top plate through the tightening screw, making the clamping more secure.

[0009] As an optimization, a positioning ring is fixedly provided at the positioning through hole. This optimization solution provides support and limitation for the circular transition portion between the steering knuckle shaft and the top plate through the positioning ring, thereby improving the stability of the steering knuckle.

[0010] As an optimization, a limiting hole is provided on the top plate of the steering knuckle, and a limiting post is provided on the bottom surface of the positioning ring to cooperate with the limiting hole. This optimization solution facilitates the determination of the clamping angle of the steering knuckle through the cooperation between the limiting post and the limiting hole, while further limiting the steering knuckle to prevent deviation.

[0011] A steering knuckle fork arm milling vertical machine tool includes a machine base and a milling cutter mechanism installed on the machine base, as well as a feeding mechanism and the steering knuckle clamping tool. The feeding mechanism includes a frame and a slide installed on the machine base. The outer wall of the frame is fixedly provided with a vertically extending guide rail. The slide is slidably connected to the guide rail. A driving mechanism for driving the slide to slide up and down is provided on the frame. The chassis of the steering knuckle clamping tool is fixedly connected to the slide. The milling cutter part of the milling cutter mechanism is located on the moving path of the steering knuckle clamping tool.

[0012] The feeding mechanism of this solution drives the steering knuckle clamping tooling to move up and down through the sliding of the slide seat, clamps the steering knuckle through the steering knuckle clamping tooling, and the feeding mechanism drives the steering knuckle clamping tooling to move toward the milling cutter part, and the milling cutter part is used to mill the side of the clamped steering knuckle fork arm. It is easy to use and greatly improves the processing efficiency.

[0013] As an optimization, the drive mechanism includes a screw rotatably mounted on a frame, a nut threaded onto the screw, and a motor driving the screw to rotate. The screw extends vertically, and the slide is fixedly connected to the nut. The drive mechanism of this optimization solution adopts a nut-screw pair, which is simple to manufacture and low in cost.

[0014] As an optimization, a vertical telescopic cylinder 3 is fixed on the frame, and the telescopic end of the telescopic cylinder 3 is hinged to the slide. This optimization solution uses the telescopic cylinder 3 as a backup drive, which is more reliable.

[0015] As an optimization, a material conveyor is further included, the input end of which is located directly below the milling cutter. This optimization solution uses the material conveyor to receive waste and slag generated by fine milling and transport them to the outside, keeping the machine tool clean, eliminating the need for manual cleaning, and making it easy to use.

[0016] As an optimization, a receiving vehicle is provided at the output end of the material conveyor. This optimization solution uses the receiving vehicle to receive the waste and slag output by the material conveyor, which is convenient for personnel transportation.

[0017] The beneficial effects of the utility model are as follows: the steering knuckle clamping tool facilitates the clamping and positioning of the steering knuckle by inserting the shaft rod of the steering knuckle into the positioning through hole, and at the same time limits the steering knuckle to prevent the steering knuckle from deflecting; the clamping part 2 is extended and retracted by the hydraulic cylinder 2 to make the pressure plate 2 clamp the top plate of the steering knuckle, providing support force for the steering knuckle, and then the telescopic cylinder 1 of the clamping part 1 drives the pressure plate pair to further clamp the top plate; the joint clamping action of the clamping part 1 and the clamping part 2 ensures the clamping stability and firmness, the overall use is convenient, and the clamping efficiency is greatly improved.

[0018] The vertical machine's feed mechanism drives the steering knuckle fixture up and down via the sliding carriage. The fixture clamps the knuckle, then moves it toward the milling cutter, which mills the side of the knuckle fork arm. This convenient operation significantly improves machining efficiency. Waste and slag from fine milling are transported to the outside of the machine via a material conveyor, further enhancing convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the three-dimensional structure of the steering knuckle;

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the steering knuckle clamping fixture Figure 1 ;

[0021] Figure 3 Schematic diagram of the three-dimensional structure of the steering knuckle clamping fixture Figure 2 ;

[0022] Figure 4 This is a schematic diagram of the steering knuckle clamping state;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping member 1 and the clamping member 2;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the vertical machine tool;

[0025] Figure 7 This is a schematic diagram of the internal structure of the outer cabin of a vertical machine tool;

[0026] Figure 8 for Figure 7 Schematic diagram of the structure after removing the base;

[0027] Figure 9 for Figure 8 A magnified view of part A;

[0028] Figure 10 This is a schematic diagram of the milling cutter mechanism in the state of fine milling the steering knuckle;

[0029] Figure 11 for Figure 10 A magnified view of part B;

[0030] As shown in the figure:

[0031] 1. External engine room;

[0032] 2. Steering knuckle clamping fixture, 21. Chassis, 22. Positioning through hole, 23. Positioning ring, 24. Limiting column, 25. Clamping part 2, 251. Telescopic cylinder 2, 252. Pressing plate 2, 26. Clamping part 1, 261. Telescopic cylinder 1, 262. Pressing rod 1, 263. Connecting rod;

[0033] 3. Feed mechanism, 31. Frame, 32. Slide, 33. Guide rail, 34. Nut, 35. Lead screw, 36. Motor, 37. Telescopic cylinder 3, 38. Gas cylinder;

[0034] 4. milling cutter mechanism, 41. motor, 42. cutter shaft, 43. cutter disc, 44. reduction gear box;

[0035] 5. Machine base, 6. Material conveyor, 7. Material receiving vehicle;

[0036] 8. Steering knuckle, 81. Shaft, 82. Top plate, 83. Round transition portion, 84. Fork arm, 85. Limit hole; 9. Jacking screw. DETAILED DESCRIPTION

[0037] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0038] like Figures 2 to 5As shown, a steering knuckle clamping tool 2 includes a chassis 21, a first clamping member 26, and a second clamping member 25. A positioning hole 22 is defined at the center of the bottom surface of the chassis 21, through which the shaft 81 of the steering knuckle 8 passes. A positioning ring 23 is fixed to the positioning hole 22, and the positioning ring 23 and the positioning hole are coaxially arranged. In this embodiment, the inner diameter of the positioning ring 23 matches the outer diameter of the circular transition portion 83 between the steering knuckle shaft 81 and the top plate 82.

[0039] When the shaft 81 is inserted into the positioning through hole 22, in order to facilitate personnel to determine the clamping angle of the steering knuckle 8, a limiting hole 85 is provided on the top plate 82 of the steering knuckle 8, and the bottom surface of the positioning ring 23 is provided with a limiting column 24 that cooperates with the limiting hole 85, which is easy to operate.

[0040] The first clamping member 26 and the second clamping member 25 are disposed on the bottom surface of the chassis 21 and work together to clamp the top plate 82 of the steering knuckle. In this embodiment, two first clamping members 26 and two second clamping members 25 are provided. The two first clamping members 26 and two second clamping members 25 are located on opposite sides of the top plate 82 in the axial direction. The two first clamping members and two second clamping members clamp the steering knuckle, ensuring stable and reliable clamping, preventing the steering knuckle from easily deviating during the machining process, and facilitating improved machining accuracy.

[0041] Specifically, the clamping member 26 comprises a telescopic cylinder 261 fixed to the chassis 21 and a pressure rod 262. One end of the pressure rod 262 is hinged to the telescopic end of the telescopic cylinder 261, and the other end of the pressure rod 262 contacts the end surface of the top plate 82. The middle portion of the pressure rod 262 is hinged to the telescopic cylinder 261 via a connecting rod 263. In this embodiment, the telescopic cylinder 1 is vertically arranged and fixed to the bottom surface of the chassis. One end of the connecting rod 263 is hinged to the telescopic cylinder 261, and the other end of the connecting rod 263 is hinged to the middle portion of the pressure rod 262. As a result, the extension and retraction of the telescopic cylinder 1 drives the pressure rod 1 to rotate about the connecting rod, thereby rotating and clamping the top plate.

[0042] Specifically, the second clamping member 25 comprises a second telescopic cylinder 251 and a second pressure rod 252 fixed to the chassis. The telescopic end of the second telescopic cylinder 251 is fixedly connected to one end of the second pressure rod 252, and the other end of the second pressure rod 252 contacts the end surface of the top plate 82. In this embodiment, the second telescopic cylinder is vertically arranged and fixedly connected to the bottom surface of the chassis. The extension and contraction of the second telescopic cylinder drives the second pressure rod to move up and down, thereby clamping and supporting the top plate.

[0043] To enhance clamping firmness, the ends of the first and second compression rods 262 and 252 that contact the top plate 82 are both threaded with a tightening screw 9, one end of which contacts the end surface of the top plate 82. In this embodiment, the tightening screw is vertically inserted into the compression rods. When clamping, the upper end of the tightening screw contacts the top plate, thereby clamping the top plate.

[0044] like Figures 6-11 As shown, this embodiment also provides a steering knuckle fork arm milling vertical machine tool, including a machine base 5, and a milling cutter mechanism 4 installed on the machine base 5, and also includes a feeding mechanism 3 and the steering knuckle clamping tool 2.

[0045] The feeding mechanism 3 includes a frame 31 and a slide 32 mounted on the machine base 5. The outer wall of the frame 31 is fixedly provided with a vertically extending guide rail 33. The slide 32 is slidably connected to the guide rail 33. A driving mechanism for driving the slide 32 to slide up and down along the guide rail 33 is provided on the frame 31. The chassis 21 of the steering knuckle clamping fixture 2 is fixedly connected to the slide 32 by bolts. The milling cutter part 43 of the milling cutter mechanism 4 is located on the moving path of the steering knuckle clamping fixture 2. The milling cutter part 43 in this embodiment is located directly below the steering knuckle clamping fixture 2, and mills the steering knuckle fork arm clamped by the steering knuckle clamping fixture.

[0046] Specifically, two guide rails 33 are distributed on the left and right sides of the front side wall of the frame 21. The guide rails 33 are H-shaped guide rails. The slide 32 is slidably connected to the two guide rails 33, thereby ensuring the stability of the slide.

[0047] The driving mechanism is a nut-screw pair, which includes a screw 35 rotatably mounted on the frame 21, a nut 34 screwed on the screw 35, and a motor 36 for driving the screw 35 to rotate. The screw 35 extends vertically, the slide 32 is fixedly connected to the nut 34, and the motor 36 is fixedly mounted on the top of the frame 21. The motor 36 drives the screw 35 to rotate by rotating forward and reverse, so that the screwed nut 34 drives the slide 32 to slide up and down, and then drives the steering knuckle clamping tooling 2 to move up and down, so that the clamped steering knuckle 8 is fed into the milling cutter mechanism 4 for fine milling, which is convenient to operate.

[0048] To improve the reliability of the feed mechanism 3, a vertical telescopic cylinder 37 is fixed to the frame 21. The telescopic end of the telescopic cylinder 37 is hinged to the slide 32. In special circumstances, such as a power outage, when the drive mechanism's motor 36 is unable to operate, the telescopic cylinder 37 can serve as a backup drive, driving the slide 32 to slide, temporarily disengaging the steering knuckle from the milling cutter mechanism and ensuring operational safety.

[0049] In this embodiment, the telescopic cylinder 1 261 and the telescopic cylinder 251 are electric cylinders for easy control. The telescopic cylinder 37 is a pneumatic cylinder. A gas cylinder 38 for the telescopic cylinder 3 is provided on the outer wall of the frame 21, and does not require electric drive.

[0050] The milling cutter mechanism 4 includes a motor 41, a reduction gear 44, a cutter shaft 42 and a milling cutter part, and the reduction gear 44 is fixedly mounted on the machine base 5. The motor 41 is connected to the power input end of the reduction gear 44, and the cutter shaft 42 is connected to the power output end of the reduction gear 44. The milling cutter part includes four cutter discs 43 arranged axially along the cutter shaft 42, and the cutter discs 43 are connected and fixed to the cutter shaft 42 by positioning keys. The four cutter discs 43 are grouped in pairs to mill the sides of the two fork arms 84 respectively. The distance between the two cutter discs 43 in each group is the width of the fork arm to be processed and formed, and the two cutter discs are used to achieve fine milling of both sides of the fork arm 84 of the steering knuckle. The milling cutter mechanism 4 described in this embodiment is a commonly used structure of a steering knuckle fork arm milling machine in the prior art, and will not be elaborated on here.

[0051] The vertical machine tool of this embodiment also includes an external cabin 1. The machine base 5, milling cutter mechanism 4, feeding mechanism 3 and steering knuckle clamping tooling 2 are all located in the external cabin 1. A cabin door is provided on the front side of the external cabin, and an observation window is provided on the cabin door to facilitate observation of the internal processing status during processing and ensure the safety of the processing personnel.

[0052] The machine also includes a material conveyor 6, the input end of which is located directly below the milling cutter element of the milling cutter mechanism 4. In this embodiment, the input end of the material conveyor 6 is located inside the outer engine compartment 1, and the output end of the material conveyor 6 is located outside the outer engine compartment 1. The input end of the material conveyor is used to receive waste and slag generated by fine milling and transport them to the outside. The output end of the material conveyor 6 is equipped with a material receiving trolley 7, which is located below the output end of the material conveyor 6 and is used to receive the output waste and slag.

[0053] Working Principle: When clamping the steering knuckle 8, the knuckle's shaft 81 is inserted into the positioning hole 22 of the knuckle clamping fixture 2, and the limiting post 24 on the positioning ring 23 is inserted into the limiting hole 85 of the knuckle's top plate 82. The telescopic cylinder 1 261 of the clamping member 1 26 extends, causing the pressure rod 1 262 to rotate around the connecting rod 263. This rotation of the pressure rod 1 causes the tightening screw at its end to clamp the top plate. Simultaneously, the telescopic cylinder 251 of the clamping member 25 retracts, causing the pressure rod 252 to move upward, causing the tightening screws at the ends of the pressure rod 2 to clamp the top plate. The synchronized action of the two clamping members 1 26 and 25 achieves the desired clamping and securing of the steering knuckle 8.

[0054] The milling cutter mechanism 4 is activated. The power output by the motor 41 is reduced by the reduction gearbox, driving the cutter shaft 42, which in turn drives the four cutter discs 43. The motor 36 of the feed mechanism 3 drives the lead screw 35, causing the slide 32 to slide downward, thereby moving the steering knuckle fixture 2 downward and slowly approaching the milling cutter mechanism 4. The four cutter discs 43 are grouped in pairs to perform fine milling on the sides of the two fork arms 84 of the steering knuckle. Waste residue dropped during milling falls onto the material conveyor 6 and is transported to the receiving vehicle 7 for collection and disposal.

[0055] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A steering knuckle clamping tool, characterized by: It comprises a chassis (21), a clamping member 1 (26) and a clamping member 2 (25), wherein the bottom surface of the chassis (21) is provided with a positioning through hole (22) for the shaft (81) of the steering knuckle (8) to pass through, and the clamping member 1 (26) and the clamping member 2 (25) are arranged on the bottom surface of the chassis and work together to clamp the top plate (82) of the steering knuckle (8); The clamping member (26) includes a telescopic cylinder (261) and a pressure rod (262) fixed on the chassis (21), one end of the pressure rod (262) is hinged to the telescopic end of the telescopic cylinder (261), the other end of the pressure rod (262) is in contact with the top plate (82), and the middle part of the pressure rod is hinged to the telescopic cylinder via a connecting rod (263); The second clamping member (25) comprises a second telescopic cylinder (251) and a second pressure rod (252) fixed on the chassis, wherein the telescopic end of the second telescopic cylinder is fixedly connected to one end of the second pressure rod, and the other end of the second pressure rod is in contact with the top plate (82).

2. The steering knuckle clamping tool according to claim 1, characterized in that: There are two clamping members 1 (26) and two clamping members 2 (25), and the two clamping members 1 and the two clamping members 2 are located on both axial sides of the top plate (82) and are arranged opposite to each other.

3. The steering knuckle clamping tool according to claim 1, characterized in that: The ends of the pressure rod 1 (262) and the pressure rod 2 (252) that are in contact with the top plate (82) are both screwed with a tightening screw (9), and the upper ends of the tightening screws are in contact with the end surface of the top plate.

4. The steering knuckle clamping tool according to claim 1, characterized in that: A positioning ring (23) is fixedly provided at the positioning through hole (22).

5. The steering knuckle clamping tool according to claim 4, characterized in that: A limiting hole (85) is provided on the top plate (82) of the steering knuckle, and a limiting column (24) cooperating with the limiting hole is provided on the bottom surface of the positioning ring (23).

6. A vertical machine tool for milling a steering knuckle arm, comprising a machine base (5) and a milling cutter mechanism (4) mounted on the machine base, characterized in that: It also includes a feeding mechanism (3) and a steering knuckle clamping tool (2) as described in any one of claims 1 to 5, wherein the feeding mechanism (3) includes a frame (31) and a slide (32) installed on a machine base (5), a vertically extending guide rail (33) is fixedly provided on the outer wall of the frame (31), the slide (32) is slidably connected to the guide rail, and a driving mechanism for driving the slide (32) to slide up and down along the guide rail is provided on the frame (31), the chassis (21) of the steering knuckle clamping tool (2) is fixedly connected to the slide (32), and the milling cutter member of the milling cutter mechanism (4) is located on the moving path of the steering knuckle clamping tool (2).

7. A vertical machine tool for milling a knuckle arm according to claim 6, characterized in that: The driving mechanism includes a lead screw (35) rotatably mounted on a frame (31), a nut (34) threaded onto the lead screw, and a motor (36) for driving the lead screw to rotate. The lead screw extends vertically, and the slide (32) is fixedly connected to the nut (34).

8. The steering knuckle arm milling vertical machine tool according to claim 6, characterized in that: A vertical telescopic cylinder 3 (37) is fixedly provided on the frame (31), and the telescopic end of the telescopic cylinder 3 is hinged to the slide seat (32).

9. The steering knuckle arm milling vertical machine tool according to claim 6, characterized in that: It also includes a material conveyor (6), the input end of which is located directly below the milling cutter.

10. The steering knuckle arm milling vertical machine tool according to claim 9, characterized in that: The output end of the material conveyor (6) is provided with a material receiving vehicle (7).

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