Clamping device for steering knuckle machining

Abstract

The utility model discloses a clamping device for steering knuckle machining, and relates to the related technical field of automobile parts. The clamping device comprises a workbench, sliding rods and clamping assemblies, a through groove is vertically formed in the workbench in a penetrating mode, the two symmetrically-distributed sliding rods are fixed in the through groove, the two sliding rods are jointly sleeved with two sliding blocks in a sliding mode, the center of each sliding block is in threaded connection with a threaded rod in a vertically-penetrating mode, and the clamping assemblies are arranged above the threaded rods. Hinge pieces are fixed to the top ends of the screws. The clamping assembly comprises a lower clamping plate with the bottom hinged to the hinge piece and an upper clamping plate located above the lower clamping plate, a spring is fixed to the top end in each inserting groove, and an inserting rod is fixed to the bottom of each spring. Through the arrangement of the workbench, the clamping assembly, the screw rod, the hinging piece, the sliding block and the sliding rod, the problems that a conventional clamping device cannot be matched with irregular parts for clamping and fixing use, and the machining angle cannot be changed under the condition that the steering knuckle is not disassembled after being clamped are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to automobile parts, and particularly relates to a clamping device for processing steering knuckles. Background Art

[0002] The steering knuckle is a critical component in a vehicle's steering axle, ensuring stable driving and sensitively transmitting direction. Its function is to transmit and bear the front load of the vehicle, supporting and driving the front wheels around the kingpin to steer the vehicle. The knuckle is connected to the vehicle body via three bushings and two bolts, and to the brake system via the brake mounting holes in the flange. The knuckle's overall structure is irregular, resulting in the following drawbacks during actual processing:

[0003] First, due to the irregular shape of the steering knuckle, conventional clamping devices (such as those that can only clamp cylindrical or square structures) cannot meet its clamping requirements. All parts of the steering knuckle are not on the same plane, so the conventional clamping method at both ends can only clamp a certain part. Then, the force applied to the remaining parts during processing is prone to deviation. Therefore, the clamping device needs to be improved to make it suitable for clamping irregular structures.

[0004] Secondly, because the shape of the steering knuckle is irregular, it is very difficult to clamp it. However, the processing points are usually not in the same place, and it is necessary to adjust it and replace the clamping part to change the use of the processing part. However, the processing angle cannot be changed after clamping. The steering knuckle angle must be changed after disassembly and then clamped again, which greatly increases the processing time. Utility Model Content

[0005] The purpose of the utility model is to provide a clamping device for steering knuckle processing. By arranging a workbench, a clamping assembly, a screw, a hinge, a slider, and a slide rod, the utility model solves the problems that conventional clamping devices cannot be adapted for clamping and fixing irregular parts, and cannot change the processing angle without disassembling the steering knuckle after clamping.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a clamping device for steering knuckle processing, comprising a workbench, a slide rod and a clamping assembly. A through slot is vertically penetrated in the workbench, and two symmetrically distributed slide rods are fixed in the through slot. Two sliders are slidably sleeved on the outside of the two slide rods. A screw rod is vertically penetrated through the center of each slider rod and is connected to the screw rod. A clamping assembly is provided above each screw rod, and a hinged member is fixed to the top of the screw rod.

[0008] The clamping assembly includes a lower clamping plate hinged to the hinge at the bottom and an upper clamping plate located above the lower clamping plate, and the bottom surface of the upper clamping plate is provided with slots distributed in a rectangular array, a spring is fixed at the top of each slot, and an insertion rod is fixed at the bottom of the spring.

[0009] Furthermore, both end surfaces of the workbench are fixed with symmetrically distributed supporting legs, and both side surfaces of the workbench are penetrated by limiting grooves, and the transverse center line of the limiting grooves is on the same horizontal plane as the central axis of the slide rod.

[0010] Furthermore, both ends of the slider close to the limiting slot are provided with limiting holes, and a long neck bolt is inserted into the limiting slot, one end of the long neck bolt extends into the workbench and abuts against the limiting hole at the end of the slider.

[0011] Furthermore, a handwheel is fixed to the bottom of each screw, and the horizontal height of the handwheel is lower than the bottom surface of the workbench. The diameter of the handwheel is smaller than the width of the through slot, and the connection between the screw and the slider is located between the two slide rods.

[0012] Furthermore, two symmetrically distributed studs are fixed to the upper end surface of the lower splint, and a through hole corresponding to the size of the stud is opened in the upper splint. The upper part of the stud passes through the through hole and extends out of the upper splint, and the part of the upper part of the stud extending out of the upper splint is also screwed with a butterfly nut.

[0013] Furthermore, the two studs are distributed outside the insertion rod, and the upper part of the insertion rod extends into the slot.

[0014] Furthermore, a steering knuckle body is clamped between the two clamping assemblies, and support arm one and support arm two are fixed to the outer periphery of the steering knuckle body, and support arm one is located between the upper splint and the lower splint in one clamping assembly, and support arm two is located between the upper splint and the lower splint in the other clamping assembly, and the upper surfaces of support arm one and support arm two both contact the bottom end of the insertion rod under the corresponding upper splint, and the bottom surfaces of support arm one and support arm two contact the upper surface of the corresponding lower splint.

[0015] The utility model has the following beneficial effects:

[0016] The utility model solves the problem that conventional clamping devices are unable to adapt to the clamping and fixing of irregular parts by arranging a workbench and a clamping assembly; when clamping the steering knuckle, it is first placed between the two clamping assemblies, and the part to be clamped is placed on the lower clamping plate of the two clamping assemblies, and the height and angle of the lower clamping plate are adjusted so that it contacts and fits with the bottom surface of the clamping part of the steering knuckle body, and then the corresponding upper clamping plate cover is placed on the corresponding lower clamping plate, and a large number of insertion rods at the bottom of the upper clamping plate will contact the irregular structure on the surface of the steering knuckle body, whether it is a groove or a hole, etc., and a large number of insertion rods are temporarily pressed against the steering knuckle body by springs, and then the butterfly nut is tightened to completely lock the upper clamping plate and the lower clamping plate until the insertion rods contacting the steering knuckle body cannot move to any position, thereby completing the clamping and fixing of the steering knuckle body.

[0017] The utility model solves the problem that the processing angle cannot be changed without disassembling the steering knuckle after clamping by arranging a screw, a hinge, a slider and a slide rod; after the steering knuckle body is clamped and fixed, if it is necessary to change the processing part, such as processing part of the second support arm, the second support arm needs to be kept horizontal, and at this time, it is only necessary to rotate the corresponding screw, such as lowering the screw under the second support arm and raising the screw under the first support arm until the second support arm is horizontal and the remaining part can be tilted. With the assistance of the hinge, the rotatable angle change can be maintained without disassembling the steering knuckle and then reassembling it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0019] Figure 1 It is a three-dimensional diagram of a clamping device for steering knuckle processing;

[0020] Figure 2 for Figure 1 Another perspective of the structure diagram;

[0021] Figure 3 A bottom view of a clamping device for steering knuckle machining;

[0022] Figure 4 is a cross-sectional view of the workbench;

[0023] Figure 5 This is a bottom view of the steering knuckle body being pressed by two upper clamping plates;

[0024] Figure 6 is a structural diagram of the clamping assembly;

[0025] Figure 7 is a cross-sectional view of the upper splint;

[0026] Figure 8 for Figure 7A magnified view of the structure in Figure 2.

[0027] Reference numerals:

[0028] 1. Workbench; 101. Limiting slot; 102. Long-neck bolt; 103. Through slot; 104. Support leg; 2. Slide rod; 201. Slider; 2011. Limiting hole; 202. Screw; 2021. Handwheel; 203. Hinge; 3. Clamping assembly; 301. Upper splint; 3011. Through hole; 3012. Slot; 302. Lower splint; 3021. Stud; 3022. Butterfly nut; 303. Insert rod; 304. Spring; 4. Steering knuckle body; 401. Support arm 1; 402. Support arm 2. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] See also Figure 1-8 As shown, the utility model is a clamping device for steering knuckle processing, comprising a workbench 1, a slide bar 2 and a clamping assembly 3. A through slot 103 is vertically penetrated in the workbench 1, and two symmetrically distributed slide bars 2 are fixed in the through slot 103. Two sliders 201 are slidably sleeved on the outside of the two slide bars 2. A screw rod 202 is vertically penetrated through the center of each slider 201 and is connected to the screw rod 202. A clamping assembly 3 is provided above each screw rod 202, and a hinge 203 is fixed to the top of the screw rod 202.

[0031] The steering knuckle body 4 is clamped on the workbench 1. A through slot 103 is provided inside the workbench to install the slide bar 2. A slider 201 is slidably provided on the slide bar 2 so that the two sliders 201 can move freely. Secondly, a screw rod 202 is threadedly connected to each slider 201, which can change the position height after rotation. Each screw rod 202 is connected to the clamping assembly 3 through a hinge 203, so that the clamping assembly 3 can be adjusted in angle within a certain range.

[0032] The clamping assembly 3 includes a lower clamping plate 302 hingedly connected to the hinge 203 at its bottom, and an upper clamping plate 301 located above the lower clamping plate 302. The bottom surface of the upper clamping plate 301 is provided with slots 3012 distributed in a rectangular array. A spring 304 is fixed at the top of each slot 3012, and an insertion rod 303 is fixed at the bottom of the spring 304.

[0033] In the clamping assembly 3, the lower clamping plate 302 can be rotated through the hinge 203. The lower clamping plates 302 in the two clamping assemblies 3 jointly support the steering knuckle body 4, and then the upper clamping plate 301 is covered, and the insertion rod 303 at the bottom of the upper clamping plate 301 is in contact with the upper surface of the steering knuckle body 4 to perform preliminary clamping on its irregular surface. The insertion rod 303 that does not contact the steering knuckle body 4 does not move, and the insertion rod 303 that contacts the steering knuckle body 4 presses the steering knuckle body 4 under the action of the spring 304 (the spring 304 is compressed, and the upper part of the insertion rod 303 enters the slot 3012).

[0034] Both end surfaces of the workbench 1 are fixed with symmetrically distributed supporting legs 104 , and both side surfaces of the workbench 1 are penetrated by limiting grooves 101 , and the transverse center line of the limiting grooves 101 is on the same horizontal plane as the central axis of the slide bar 2 .

[0035] The slider 201 has limiting holes 2011 at both ends near the limiting groove 101, and a long neck bolt 102 is inserted into the limiting groove 101. One end of the long neck bolt 102 extends into the workbench 1 and abuts against the limiting hole 2011 at the end of the slider 201.

[0036] After the clamping assembly 3 clamps the steering knuckle body 4, in order to ensure that the slider 201 no longer slides and maintain the stability of subsequent processing, a long neck bolt 102 is inserted outside the limiting groove 101 and screwed into the limiting hole 2011. The limiting hole 2011 is a screw hole and is threadedly connected to the end of the long neck bolt 102. After locking, the slider 201 and the workbench 1 remain relatively stable, thereby avoiding the movement of the slider 201.

[0037] A handwheel 2021 is fixed to the bottom of each screw rod 202, and the horizontal height of the handwheel 2021 is lower than the bottom surface of the workbench 1. The diameter of the handwheel 2021 is smaller than the width of the through slot 103. The connection between the screw rod 202 and the slider 201 is located between the two slide rods 2.

[0038] The rotation of the screw rod 202 can be controlled by rotating the hand wheel 2021 so that the height of the screw rod 202 can be changed according to actual needs.

[0039] Two symmetrically distributed studs 3021 are fixed to the upper end surface of the lower splint 302. A through hole 3011 corresponding to the size of the stud 3021 is opened in the upper splint 301. The upper part of the stud 3021 passes through the through hole 3011 and extends out of the upper splint 301. The part of the upper part of the stud 3021 extending out of the upper splint 301 is also screwed with a butterfly nut 3022.

[0040] Two studs 3021 are distributed outside the insertion rod 303, and the upper portion of the insertion rod 303 extends into the slot 3012;

[0041] When fixing the steering knuckle body 4, the upper clamping plate 301 is placed on the lower clamping plate 302, and the through hole 3011 passes through the stud 3021. After the insertion rod 303 presses the steering knuckle, the butterfly nut 3022 is rotated outside the stud 3021 to make the upper clamping plate 301 continue to approach the lower clamping plate 302 until the insertion rod 303 can no longer move, thereby clamping and fixing the arm part of the steering knuckle.

[0042] A steering knuckle body 4 is clamped between the two clamping assemblies 3. A first support arm 401 and a second support arm 402 are fixed to the outer periphery of the steering knuckle body 4. The first support arm 401 is located between the upper clamping plate 301 and the lower clamping plate 302 in one clamping assembly 3, and the second support arm 402 is located between the upper clamping plate 301 and the lower clamping plate 302 in the other clamping assembly 3. The upper surfaces of the first support arm 401 and the second support arm 402 both contact the bottom end of the insertion rod 303 under the corresponding upper clamping plate 301, and the bottom surfaces of the first support arm 401 and the second support arm 402 contact the upper surface of the corresponding lower clamping plate 302.

[0043] Place the steering knuckle body 4 on the lower clamping plate 302 in the two clamping assemblies 3, adjust the height and angle of the lower clamping plate 302 to fit the lower surface of the support arm 1 401 and the support arm 2 402 in the steering knuckle body 4, and then cover it with the upper clamping plate 301 to lock and fix it.

[0044] The specific working principle of the present invention is as follows: first, the steering knuckle body 4 is placed on the lower clamping plate 302 of the two clamping assemblies 3, and the hand wheel 2021 is rotated to control the rotation of the screw 202 so that the height of the screw 202 is adapted to the height of the support arm 1 401 and the support arm 2 402 in the steering knuckle body 4, and then the hinge 203 is used to rotate the lower clamping plate 302 to a certain angle so that the lower clamping plate 302 is adapted to the inclination of the support arm 2 402, so that the height and angle of the two lower clamping plates 302 are adapted and Fit the lower surface of the support arm 1 401 and the support arm 2 402 in the steering knuckle body 4, then cover the upper clamping plate 301 on the lower clamping plate 302, and make the through hole 3011 pass through the stud 3021. At this time, a large number of plug rods 303 at the bottom of the upper clamping plate 301 will contact the irregular structure on the surface of the steering knuckle body 4, whether it is a groove or a hole, etc. A large number of plug rods 303 are temporarily pressed against the steering knuckle body 4 by the spring 304, and the butterfly nut 30 is rotated outside the stud 3021. After the cam 201 is locked, the upper and lower clamping plates 301 are moved closer to the lower clamping plates 302 until the rod 303 can no longer move, thereby clamping the arm part of the steering knuckle. At this time, in order to ensure that the slider 201 no longer slides and maintain the stability of subsequent processing, the long neck bolt 102 is inserted outside the limit groove 101 and screwed into the limit hole 2011. After locking, the slider 201 and the workbench 1 remain relatively stable. When the processing angle needs to be changed, the long neck bolt 102 is removed. For example, to process part of the support arm 202, it is necessary to keep the support arm 202 horizontal. At this time, only the corresponding screw 202 needs to be rotated, such as the screw 202 under the rotating support arm 202 is lowered, and the screw 202 under the rotating support arm 1 401 is raised until the support arm 2 402 is horizontal, and the remaining part can be tilted. With the assistance of the hinge 203, the rotatable angle change is maintained without the need to disassemble the steering knuckle and reassemble it, and then the long neck bolt 102 is screwed in to limit it.

[0045] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are within the scope of protection of the present invention.

Claims

1. A clamping device for steering knuckle machining, comprising a workbench (1), a slide rod (2) and a clamping assembly (3), characterized in that: A through slot (103) is vertically penetrated in the workbench (1), and two symmetrically distributed slide bars (2) are fixed in the through slot (103), and two sliders (201) are slidably sleeved outside the two slide bars (2), and a screw rod (202) is vertically penetrated at the center of each slider rod (201), and a clamping assembly (3) is provided above each screw rod (202), and a hinge (203) is fixed at the top of the screw rod (202); The clamping assembly (3) comprises a lower clamping plate (302) whose bottom is hinged to a hinged member (203) and an upper clamping plate (301) located above the lower clamping plate (302), and the bottom surface of the upper clamping plate (301) is provided with slots (3012) distributed in a rectangular array, a spring (304) is fixed at the top end of each slot (3012), and an insertion rod (303) is fixed at the bottom end of the spring (304).

2. A clamping device for steering knuckle processing according to claim 1, characterized in that: Both end surfaces of the workbench (1) are fixed with symmetrically distributed supporting legs (104), and both side surfaces of the workbench (1) are penetrated by a limiting groove (101), and the transverse center line of the limiting groove (101) and the central axis of the slide rod (2) are on the same horizontal plane.

3. The clamping device for steering knuckle processing according to claim 2, characterized in that: The slider (201) is provided with limiting holes (2011) at both ends close to the limiting groove (101), and a long-neck bolt (102) is inserted into the limiting groove (101), and one end of the long-neck bolt (102) extends into the workbench (1) and abuts against the limiting hole (2011) at the end of the slider (201).

4. The clamping device for steering knuckle processing according to claim 1, characterized in that: A handwheel (2021) is fixed to the bottom of each screw rod (202), and the horizontal height of the handwheel (2021) is lower than the bottom surface of the workbench (1). The diameter of the handwheel (2021) is smaller than the width of the through slot (103). The connection between the screw rod (202) and the slider (201) is located between the two sliders (2).

5. The clamping device for steering knuckle processing according to claim 1, characterized in that: Two symmetrically distributed studs (3021) are fixed to the upper end surface of the lower splint (302), and a through hole (3011) corresponding to the size of the stud (3021) is opened in the upper splint (301), and the upper part of the stud (3021) passes through the through hole (3011) and extends out of the upper splint (301), and the part of the upper part of the stud (3021) extending out of the upper splint (301) is also screwed with a butterfly nut (3022).

6. The clamping device for steering knuckle processing according to claim 5, characterized in that: The two studs (3021) are distributed outside the insertion rod (303), and the upper part of the insertion rod (303) extends into the slot (3012).

7. The clamping device for steering knuckle processing according to claim 1, characterized in that: A steering knuckle body (4) is clamped between the two clamping assemblies (3), and a support arm 1 (401) and a support arm 2 (402) are fixed to the outer periphery of the steering knuckle body (4), and the support arm 1 (401) is located between the upper clamping plate (301) and the lower clamping plate (302) in one clamping assembly (3), and the support arm 2 (402) is located between the upper clamping plate (301) and the lower clamping plate (302) in the other clamping assembly (3), and the upper surfaces of the support arm 1 (401) and the support arm 2 (402) both contact the bottom end of the insertion rod (303) under the corresponding upper clamping plate (301), and the bottom surfaces of the support arm 1 (401) and the support arm 2 (402) contact the upper surface of the corresponding lower clamping plate (302).

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