Clamp tool for automobile steering knuckle machining

Abstract

The utility model relates to an automobile steering knuckle processing clamp tool, which comprises a material placing seat, a positioning cylinder, a support cylinder, a plurality of clamping swing arms and a first electric cylinder, the support cylinder is fixedly arranged on the material placing seat, the positioning cylinder is fixedly arranged on the material placing seat and surrounds the support cylinder, the plurality of clamping swing arms are rotatably arranged on the support cylinder, and the first electric cylinder is fixedly arranged on the material placing seat. Transmission gears are fixedly connected to rotating shafts of the clamping swing arms, a plurality of transmission racks meshed with the transmission gears one to one are arranged in the supporting barrel in a sliding mode, and the first electric cylinder is arranged below the material containing base and is in transmission connection with the transmission racks. According to the clamp tool for machining the automobile steering knuckles, the automobile steering knuckles with different center hole thicknesses can be clamped and fixed through different swing amplitudes while the automobile steering knuckles are rapidly clamped and fixed, and the clamp has better applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile accessory production equipment, especially a clamp tool for automobile steering knuckle machining. BACKGROUND

[0002] The automobile steering knuckle is an important part of the automobile steering system, has a plurality of mounting holes with a central hole, and the central axes of the central hole and the mounting holes are generally not in the same plane, and has a relatively complex structure shape. When the automobile steering knuckle is machined, a clamp is needed to clamp and fasten the automobile steering knuckle. For example, the utility model patent: an automobile steering knuckle clamp (publication number: CN220807114U) discloses a clamp for quickly clamping and fastening the automobile steering knuckle. In this clamp, the positioning plate extends out of the positioning column to match the side surface of the automobile steering knuckle to realize the limiting of the automobile steering knuckle. However, since the distance between the positioning plate and the carrier plate is relatively constant, the cooperation between the positioning plate and the carrier plate can only clamp and fix the automobile steering knuckle with a fixed thickness (specifically the thickness of the central hole of the automobile steering knuckle), which makes the clamp have insufficient applicability.

[0003] In view of the above problems, the utility model is improved. UTILITY MODEL CONTENTS

[0004] The utility model provides a clamp tool for automobile steering knuckle machining, solves the above problems existing in the use process of the prior art.

[0005] The technical scheme of the utility model is as follows:

[0006] A clamp tool for automobile steering knuckle machining, comprising a material placing seat, a positioning cylinder, a supporting cylinder, a clamping swing arm and a first electric cylinder, the supporting cylinder is fixedly arranged on the material placing seat, the positioning cylinder is fixedly arranged on the material placing seat and surrounds the supporting cylinder, a plurality of clamping swing arms are rotationally arranged on the supporting cylinder, a transmission gear is fixedly connected to the rotating shaft of the clamping swing arm, a plurality of transmission racks meshing with the transmission gears are slidably arranged in the supporting cylinder, and the first electric cylinder is arranged below the material placing seat and is in transmission connection with the transmission racks.

[0007] Preferably, a plurality of vertical guide rods are fixedly arranged in the supporting cylinder, a driving frame is arranged on the guide rods, the transmission racks are fixedly connected to the driving frame, and the output shaft of the first electric cylinder penetrates the supporting cylinder and is fixedly connected to the driving frame.

[0008] Preferably, the upper ends of the supporting cylinder and the positioning cylinder are higher than the rotating shaft of the clamping swing arm, a plurality of first notches and second notches are formed in the supporting cylinder and the positioning cylinder and can be passed through by the clamping swing arm, and the first notches are aligned with the second notches.

[0009] Preferably, the clamping swing arm is composed of a fixed arm and a telescopic arm, the fixed arm is rotationally arranged on the supporting cylinder and a sliding cavity with a polygonal cross section is formed in the fixed arm, the telescopic arm is formed with a sliding post matching the sliding cavity at the end, the sliding post is inserted into the sliding cavity, and a fastening bolt penetrating the sliding cavity and abutting against the sliding post is screwed on the fixed arm.

[0010] Preferably, the end of the telescopic arm is bent to form a resisting post, and the end of the resisting post is in the shape of a circular arc.

[0011] Preferably, an anti-skid sleeve is sleeved on the resisting post.

[0012] Preferably, a cylindrical screwing block is formed at the lower end of the supporting cylinder, and the positioning cylinder is screwed on the screwing block.

[0013] Preferably, a sliding groove is formed in the material placing seat on one side of the positioning cylinder, two vertical limiting columns are slidingly arranged in the sliding groove, and each of the two limiting columns is rotationally connected with a transmission swing arm penetrating the sliding groove at the lower end, and the ends of the two transmission swing arms are rotationally connected with the output shaft of a second electric cylinder arranged below the material placing seat.

[0014] Preferably, a supporting rod is arranged below the material placing seat, and the limiting columns penetrate the supporting rod at the lower end.

[0015] In summary, the present application has the advantages that: the positioning cylinder penetrates the center hole of the automobile steering knuckle to limit the automobile steering knuckle horizontally, the first motor drives the transmission rack to drive the transmission gear to drive the clamping swing arm to swing against the automobile steering knuckle to limit the automobile steering knuckle vertically, the automobile steering knuckle is quickly clamped and fixed, and the clamping swing arm can clamp and fix the automobile steering knuckles with different thicknesses at different center holes by different swing amplitudes when the clamping swing arm swings downward against the automobile steering knuckle, so that the clamp has better applicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a structural schematic view of the present application;

[0018] Figure 2 is a sectional schematic view of the present application;

[0019] Figure 3For Figure 2 Enlarged view of part A;

[0020] Figure 4 Decomposition schematic view of the utility model;

[0021] Figure 5 For Figure 4 Enlarged view of part B;

[0022] Figure 6 Structure schematic view of the utility model in limiting column and second electric cylinder.

[0023] In the drawing: 1, material placing seat; 2, positioning cylinder; 21, second notch; 3, support cylinder; 31, first notch; 32, screwing block; 4, clamping swing arm; 41, fixed arm; 411, sliding cavity; 42, telescopic arm; 421, sliding pile; 43, fastening bolt; 44, abutting pile; 45, antiskid sleeve; 5, first electric cylinder; 6, transmission gear; 7, transmission rack; 8, guide rod; 9, driving frame; 10, sliding groove; 11, limiting column; 12, transmission swing arm; 13, support rod; 14, second electric cylinder. DETAILED DESCRIPTION

[0024] The utility model will be described below in conjunction with the drawings in the embodiments of the utility model Figures 1-6 The technical solutions in the embodiments of the utility model are clearly and completely described, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] As shown in the figure, a kind of fixture fro automobile steering knuckle machining, including material placing seat 1, positioning cylinder 2, support cylinder 3, clamping swing arm 4 and first electric cylinder 5, the support cylinder 3 is fixedly arranged on material placing seat 1, the positioning cylinder 2 is fixedly arranged on material placing seat 1 around support cylinder 3, several clamping swing arms 4 are rotationally arranged on support cylinder 3, transmission gear 6 is fixedly connected on the rotation axis of clamping swing arm 4, several transmission racks 7 meshed with several transmission gears 6 are slidably arranged in support cylinder 3, and first electric cylinder 5 is arranged below material placing seat 1 and is transmissionally connected with transmission rack 7.

[0026] Specifically, the structure that transmission rack 7 is slidably arranged in support cylinder 3: several vertical guide rods 8 are fixedly arranged in support cylinder 3, driving frame 9 is penetrated on guide rod 8, transmission rack 7 is fixedly connected on driving frame 9, and the output shaft of first electric cylinder 5 is penetrated into support cylinder 3 and is fixedly connected with driving frame 9.

[0027] In the above structure, the first electric cylinder 5 can drive the driving frame 9 to stably slide longitudinally along the guide rod 8, the driving frame 9 drives the plurality of transmission racks 7 to stably slide longitudinally in the supporting cylinder 3, the transmission racks 7 drive the transmission gears 6 to reciprocate by engaging with the transmission gears 6, the transmission gears 6 drive the rotating shafts of the clamping swing arms 4 to reciprocate and drive the clamping swing arms 4 to reciprocate, when clamping and fixing the automobile steering knuckle, the first electric cylinder 5 drives the clamping swing arms 4 to swing upward, so that the plurality of clamping swing arms 4 are folded in the supporting cylinder 3, then the center hole of the automobile steering knuckle is aligned with the positioning cylinder 2, the positioning cylinder 2 passes through the center hole of the automobile steering knuckle, so that the automobile steering knuckle is placed on the material placing seat 1, and the positioning cylinder 2 matched with the center hole of the automobile steering knuckle applies horizontal limiting to the automobile steering knuckle, then the first electric cylinder 5 drives the plurality of clamping swing arms 4 to swing downward, so that the free ends of the clamping swing arms 4 abut against the automobile steering knuckle to apply vertical limiting to the automobile steering knuckle, so as to clamp and fix the automobile steering knuckle on the material placing seat 1, through the above structure, the clamping and fixing of the automobile steering knuckle can be realized quickly, and when the clamping swing arms 4 swing downward and abut against the automobile steering knuckle, different swing amplitudes can clamp and fix the automobile steering knuckles with different thicknesses at the center hole, so that the clamp has better applicability.

[0028] In addition, the upper ends of the supporting cylinder 3 and the positioning cylinder 2 are higher than the rotating shafts of the clamping swing arms 4, a plurality of first notches 31 and second notches 21 are formed on the supporting cylinder 3 and the positioning cylinder 2, the first notches 31 are aligned with the second notches 21, by increasing the height of the supporting cylinder 3 and the positioning cylinder 2, the stability when the positioning cylinder 2 passes through the center hole of the automobile steering knuckle to apply limiting to the automobile steering knuckle is strengthened, and when the clamping swing arms 4 reciprocate and fold in the supporting cylinder 3 or abut against the automobile steering knuckle, the first notches 31 and the second notches 21 provide space for the reciprocating swing of the clamping swing arms 4.

[0029] In addition, the clamping swing arm 4 is composed of a fixed arm 41 and a telescopic arm 42, the fixed arm 41 is rotationally arranged on the supporting cylinder 3, and a sliding cavity 411 with a polygonal cross section is formed in the fixed arm 41, the telescopic arm 42 is formed with a sliding pile 421 matching the sliding cavity 411 at the end, the sliding pile 421 is inserted into the sliding cavity 411, the fixed arm 41 is screwed with a fastening bolt 43 penetrating into the sliding cavity 411 and abutting against the sliding pile 421, and the sliding pile 421 can slide in the sliding cavity 411 by loosening the fastening nut, so that the fixed arm 41 can slide in the length direction of the clamping swing arm 4, the overall length of the clamping swing arm 4 is adjusted, the length of the clamping swing arm 4 can be adapted to the automobile steering knuckle to be clamped and fixed, and mainly, the area of the central hole of different automobile steering knuckles is different, the length of the clamping swing arm 4 is adjusted to change the position of the free end of the clamping swing arm 4 abutting against the automobile steering knuckle, so that the clamp is adapted to different automobile steering knuckles, and the applicability of the clamp is better.

[0030] In addition, the telescopic arm 42 is formed with an abutting pile 44 at the end, the end of the abutting pile 44 is arc-shaped, when the clamping swing arm 4 swings downward, the abutting pile 44 abuts against the automobile steering knuckle, and the abutting pile 44 arranged in a bent manner and with an arc-shaped end makes the clamping swing arm 4 more stably abut against the automobile steering knuckle to limit the automobile steering knuckle.

[0031] In addition, the abutting pile 44 is sleeved with an anti-skid sleeve 45, the friction between the abutting pile and the automobile steering knuckle when the abutting pile abuts against the automobile steering knuckle is increased, so that the stability of clamping the automobile steering knuckle is improved.

[0032] In addition, the supporting cylinder 3 is formed with a cylindrical screwing block 32 at the lower end, the positioning cylinder 2 is screwed on the screwing block 32 at the lower end, the screwing manner facilitates the disassembly and assembly of the positioning cylinder 2, different positioning cylinders 2 with different outer diameters are replaced to adapt to the central holes of automobile steering knuckles with different inner diameters, and the applicability of the clamp is better.

[0033] In addition, the material placing seat 1 is provided with a sliding groove 10 on one side of the positioning cylinder 2, two vertical limiting columns 11 are slidably arranged in the sliding groove 10, the lower ends of the two limiting columns 11 are each rotationally connected with a transmission swing arm 12 penetrating through the sliding groove 10, the ends of the two transmission swing arms 12 are rotationally connected with the output shafts of the second electric cylinders 14 arranged below the material placing seat 1, specifically, the material placing seat 1 is provided with a supporting rod 13 below, the lower ends of the limiting columns 11 are penetrated on the supporting rod 13, the second electric cylinders 14 drive the two transmission swing arms 12 to reciprocally swing and drive the two limiting columns 11 to slide towards or away from each other on the supporting rod 13, when the automobile steering knuckle is clamped and fixed, the positioning cylinder 2 penetrates through the center hole of the automobile steering knuckle to place the automobile steering knuckle on the material placing seat 1, one of the connecting arms of the automobile steering knuckle is located between the two limiting columns 11, the second electric cylinders 14 drive the two limiting columns 11 to move towards each other and tightly abut on the two sides of the connecting arm of the automobile steering knuckle respectively, the circumferential movement of the automobile steering knuckle on the material placing seat 1 is limited, thereby the stability of the clamp when clamping and fixing the automobile steering knuckle is enhanced, and the spacing of the two limiting columns 11 is very convenient to adjust, the automobile steering knuckles with connecting arms of different widths can be adapted, so that the clamp has better applicability.

[0034] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fixture for machining automotive steering knuckles, characterized in that: Including the material seat (1), the positioning cylinder (2), the support cylinder (3), the clamping swing arm (4) and the first electric cylinder (5), the support cylinder (3) is fixedly arranged on the material seat (1), the positioning cylinder (2) is fixedly arranged on the material seat (1) and surrounds the support cylinder (3), several clamping swing arms (4) are rotatably arranged on the support cylinder (3), the rotating shaft of the clamping swing arm (4) is fixedly connected with the transmission gear (6), the support cylinder (3) is slidably provided with several transmission racks (7) engaged with the transmission gear (6), and the first electric cylinder (5) is arranged below the material seat (1) and is in transmission connection with the transmission rack (7).

2. The fixture tool for machining of automobile steering knuckle as claimed in claim 1, wherein: The support cylinder (3) is fixedly provided with several vertical guide rods (8) inside, the drive frame (9) is arranged on the guide rod (8), the transmission rack (7) is fixedly connected to the drive frame (9), and the output shaft of the first electric cylinder (5) penetrates the support cylinder (3) and is fixedly connected with the drive frame (9).

3. The fixture tool as claimed in claim 2, wherein: The upper end of the support cylinder (3) and the positioning cylinder (2) is higher than the rotating shaft of the clamping swing arm (4), a plurality of first notches (31) and second notches (21) for the swinging of the clamping swing arm (4) are formed in the support cylinder (3) and the positioning cylinder (2), and the first notches (31) are aligned with the second notches (21).

4. The fixture tool as claimed in claim 3, wherein: The clamping swing arm (4) is composed of a fixed arm (41) and a telescopic arm (42), the fixed arm (41) is rotatably arranged on the support cylinder (3), and a sliding cavity (411) with a polygonal cross section is formed in the fixed arm (41), the telescopic arm (42) is formed with a sliding pile (421) matched with the sliding cavity (411) at the end, the sliding pile (421) is inserted into the sliding cavity (411), and a fastening bolt (43) penetrating the sliding cavity (411) and abutting against the sliding pile (421) is screwed on the fixed arm (41).

5. The fixture tool as claimed in claim 4, wherein: The telescopic arm (42) is bent at the end to form a resisting pile (44), and the end of the resisting pile (44) is in a circular arc shape.

6. The fixture tool as claimed in claim 5, wherein: The resisting pile (44) is sleeved with an anti-skid sleeve (45).

7. The fixture tool as claimed in claim 1, wherein: The lower end of the support cylinder (3) is formed with a cylindrical screwing block (32), and the lower end of the positioning cylinder (2) is screwed on the screwing block (32).

8. The fixture tool as claimed in claim 1, wherein: A sliding groove (10) is formed in the material seat (1) on one side of the positioning cylinder (2), two vertical limiting columns (11) are slidably arranged in the sliding groove (10), one transmission swing arm (12) is rotatably connected to the output shaft of the second electric cylinder arranged below the material seat (1) at the lower end of each of the two limiting columns (11) penetrating the sliding groove (10), and the ends of the two transmission swing arms (12) are rotatably connected to the output shaft of the second electric cylinder arranged below the material seat (1).

9. The fixture tool as claimed in claim 8, wherein: A supporting rod (13) is arranged below the material seat (1), and the lower ends of the limiting columns (11) penetrate the supporting rod (13).

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