CN209774098U

CN209774098U - clamp for machining automobile hub

Info

Publication number: CN209774098U
Application number: CN201920621241.6U
Authority: CN
Inventors: 郭文艳; 高文壮; 韩越; 王晓明; 蒋晶晶
Original assignee: Yantai Engineering and Technology College
Current assignee: Yantai Engineering and Technology College
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2019-12-13
Anticipated expiration: 2029-04-29

Abstract

The utility model relates to a fixture for automobile wheel hub processing, including base, support, pedestal and centre gripping subassembly, the base passes through the support with pedestal fixed connection, the fixed connection has central cylinder in the middle of the base, the fixed connection has the reference column subassembly on the central cylinder, be equipped with the hole in the middle of the pedestal, the pedestal upper end fixed connection has four centre gripping subassemblies; the clamping assembly comprises a first-stage cylinder, a first-stage connecting sheet, an adjusting arm, a second-stage cylinder, a second-stage connecting sheet and a gripper. Anchor clamps can be adjusted according to the wheel hub size of treating the processing, anchor clamps's commonality is stronger, and the centre gripping is more stable moreover, avoids the wheel hub part to take place to rock in the course of working, and the location that does benefit to wheel hub is accurate, does benefit to more to wheel hub's accurate processing, and it is more convenient to use moreover.

Description

Clamp for machining automobile hub

Technical Field

The utility model relates to an anchor clamps of automobile wheel hub processing relates to car anchor clamps technical field.

Background

With the improvement of science and technology, the living standard is improved, the development of the automobile industry is more and more rapid, and the automobile becomes a very common living and working article for people. The wheel hub is a cylindrical metal part for supporting a tire, namely a part for mounting an axle in the center of a wheel, and is an important part for connecting a brake disc, a wheel disc and a half shaft.

The centre gripping to wheel hub is stable very important in the wheel hub course of working, directly can influence wheel hub's product quality, and the wheel hub size of different model cars can be a bit of slight difference, and conventional anchor clamps often the adjustability ratio is relatively poor, can not satisfy the processing of different model wheel hubs simultaneously to influence wheel hub's accurate positioning processing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to prior art exists, provide an anchor clamps for automobile wheel hub processing, anchor clamps can be adjusted according to the wheel hub size of treating processing, and the centre gripping is more stable moreover, and it is accurate to do benefit to wheel hub's location, does benefit to the accurate processing to wheel hub more.

centre gripping the utility model provides a technical scheme as follows of above-mentioned technical problem: the utility model provides an anchor clamps for automobile wheel hub processing, anchor clamps include base, support, pedestal and centre gripping subassembly, the base passes through the support with pedestal fixed connection, fixedly connected with center cylinder in the middle of the base, center cylinder upper end fixedly connected with reference column subassembly, be equipped with the hole in the middle of the pedestal, the reference column subassembly with the position of hole is corresponding, and the wheel hub that will process is arranged in the upper end of pedestal through center cylinder work, can make the reference column subassembly reciprocate, and the reference column subassembly passes the hole to make the reference column subassembly insert in waiting to process wheel hub's middle through-hole, realize the center location to wheel hub to more do benefit to wheel hub's accurate processing.

The four clamping assemblies are fixedly connected to the upper end of the pedestal, each clamping assembly comprises a primary air cylinder, a primary connecting sheet, an adjusting arm, a secondary air cylinder, a secondary connecting sheet and a gripper, the primary air cylinder is fixedly connected with the pedestal, one end of the primary air cylinder is hinged with one end of the primary connecting sheet, the other end of the primary connecting sheet is fixedly connected with one end of the adjusting arm, and when the diameter of a hub to be machined is large, an air cylinder rod of the primary air cylinder extends to drive the connecting sheet, the adjusting arm and the gripper to move integrally, so that the distance between the clamping assemblies is increased; when the diameter of the hub to be processed is smaller, the cylinder rod of the primary cylinder is compressed, so that the connecting sheet, the adjusting arm and the gripper are driven to integrally move, and the distance between the clamping assemblies is reduced; the other end of the adjusting arm is hinged with the hand grip, a secondary connecting sheet is arranged on the hand grip, the secondary air cylinder is fixedly connected in the middle of the adjusting arm, and one end of the secondary air cylinder is fixedly connected with the secondary connecting sheet. Through the telescopic work of the secondary cylinder, the hand grip starts to rotate, so that the distance between the hand grip and the hub to be processed is adjusted, and the hand grip can clamp the hub to be processed more tightly.

The utility model has the advantages that: (1) the arrangement of the central cylinder and the positioning column assembly is convenient for carrying out central positioning on the hub, so that the hub can be more conveniently and accurately processed; (2) the setting of one-level cylinder and regulating arm can carry out rough distance adjustment according to the size of waiting to process wheel hub, and the adjustment of accurate distance can be realized in the setting of second grade cylinder and tongs, makes the commonality of anchor clamps is stronger, can realize not unidimensional wheel hub's centre gripping, and the centre gripping is more accurate, avoids the insecure phenomenon of centre gripping to processing to wheel hub is more convenient, efficiency is higher.

On the basis of the technical scheme, the utility model discloses can also do as follows the improvement:

Further, the upper end fixedly connected with of pedestal fixes the subassembly by two at least, fixed subassembly includes slide rail, slider, stationary cylinder and fixed block, the slide rail with pedestal fixed connection, the slider connect in the slide rail upper end, stationary cylinder's one end fixed connection one side of slider, the opposite side fixed connection of slider the fixed block. The fixed cylinder pushes the sliding block to slide on the sliding rail, so that the fixed block is extruded to the side face of the hub to be machined, further fixation of the hub is achieved, the hub to be machined is clamped more stably, and shaking of the hub in the machining process is avoided.

furthermore, one end, facing the hub to be processed, of the fixing block is arc-surface-shaped, and a rubber layer is covered at the arc-surface-shaped position of the fixing block. Because wheel hub's periphery is circular, and the fixed block is the arc surface form towards wheel hub's one end, can make the contact of fixed block and wheel hub laminate more to it is more stable to wheel hub's fixed, and the setting on rubber layer can avoid fixed block and wheel hub to contact hard excessively, leads to wheel hub to be damaged, also can make simultaneously fixed more firm.

Furthermore, a cushion block is arranged at the fixed connection position of the pedestal and the slide rail. The setting of cushion can make fixed subassembly fixed to the intermediate position of wheel hub side to it is more firm to make the fixed action.

Furthermore, the reference column subassembly includes thin reference column and thick reference column, the up end diameter of thin reference column is less than the middle through-hole of wheel hub part, the up end diameter of thick reference column is greater than the middle through-hole of wheel hub part. The thin positioning column can be inserted into the middle through hole of the hub part, so that the thin positioning column can realize the central positioning of the hub part; the diameter of the upper end face of the thick positioning column is larger than that of a middle through hole of the hub part, when the positioning cylinder enables the whole positioning column assembly to ascend, the thick positioning column can support the whole hub part, so that the height of the hub can be conveniently adjusted, and when the hub to be machined is thin, the hub part is supported by the thick positioning column, so that the hub can be more conveniently clamped by the clamping assembly; in addition, when the hub part is directly arranged on the pedestal to be machined, once the cooling liquid used in the machining process leaks to the clamp, the adsorption force between the hub and the pedestal can be generated, the hub is inconvenient to take down, the coarse positioning column can directly support the hub under the action of the central cylinder, and therefore the hub can be taken and placed more conveniently.

furthermore, one end of the adjusting arm, which faces the hub to be machined, is covered with a rubber layer. The arrangement of the rubber layer can avoid the damage of the adjusting arm to the hub parts.

Furthermore, the outer surface of the hand grip is covered with a rubber layer, and a plurality of concave-convex marks are arranged on the rubber layer. The setting on rubber layer can avoid causing the damage to the hub part, and the setting of unsmooth trace can make the centre gripping of tongs to the hub part more firm.

Furthermore, a plurality of screw holes are formed in the base. The arrangement of the screw hole is convenient for fixing the clamp on the machine tool.

Furthermore, a plurality of rings are fixedly connected to the upper end of the base. The arrangement of the hanging ring is convenient for transferring and installing the clamp.

Furthermore, the pedestal and the fixed connection department of centre gripping subassembly is equipped with the cushion, and the setting up of cushion can make centre gripping subassembly centre gripping to the intermediate position of wheel hub side to it is more stable to make the centre gripping.

The beneficial effect of adopting the further scheme is that: (1) the fixing assembly is arranged, so that the fixture can fix the hub fixture more firmly, and the hub part is prevented from shaking in the machining process; (2) the fine positioning column can realize the center positioning of the hub part, so that the machining process is more accurate; (3) the arrangement of the thick positioning column can enable the clamping assembly to more conveniently clamp the hub part and facilitate the taking and placing of the hub part; (4) the rubber layer is arranged, so that the hub part can be clamped more firmly by the clamp, and the hub part is prevented from being damaged; (5) the arrangement of the screw hole on the base is convenient for fixing the clamp on a machine tool; (6) the arrangement of the lifting ring is convenient for transferring the clamp.

Drawings

FIG. 1 is a top view of a fixture for machining an automobile hub, which clamps an automobile hub in an embodiment;

FIG. 2 is a top view of the fixture for machining the automobile hub in the embodiment;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a partial enlarged view of FIG. 2 at B;

FIG. 5 is a front view of the fixture for machining the automobile hub in the embodiment;

FIG. 6 is a schematic perspective view of an embodiment of an adjusting arm and a gripper;

In the figure, 1 base, 2 supports, 3 pedestals, 4 central cylinders, 5 holes, 6 primary cylinders, 7 primary connecting sheets, 8 adjusting arms, 9 secondary cylinders, 10 secondary connecting sheets, 11 grippers, 12 sliding rails, 13 sliding blocks, 14 fixed cylinders, 15 fixed blocks, 16 rubber layers, 17 thin positioning columns, 18 thick positioning columns, 19 screw holes, 20 lifting rings, 21 cushion blocks and a to-be-processed hubs.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in the figure, the fixture for machining the automobile hub comprises a base 1, a support 2, a pedestal 3 and clamping assemblies, wherein the base 1 is fixedly connected with the pedestal 3 through the support 2, a central cylinder 4 is fixedly connected in the middle of the base 1, a positioning column assembly is fixedly connected to the upper end of the central cylinder 4, a hole 5 is formed in the middle of the pedestal 3, the positioning column assembly corresponds to the hole 5 in position, and four clamping assemblies are fixedly connected to the upper end of the pedestal 3;

The centre gripping subassembly includes one-level cylinder 6, one-level connection piece 7, regulating arm 8, second grade cylinder 9, second grade connection piece 10 and tongs 11, one-level cylinder 6 with 3 fixed connection of pedestal, one end of one-level cylinder 6 with one end hinge joint of one-level connection piece 7, the other end of one-level connection piece 7 with the one end fixed connection of regulating arm 8, the other end hinge joint of regulating arm 8 tongs 11, be equipped with on the tongs 11 the second grade connection piece 10, second grade cylinder 9 fixed connection in the centre of regulating arm 8, the one end fixed connection of second grade cylinder 9 the second grade connection piece 10.

Two fixed subassemblies of upper end fixedly connected with of pedestal 3, fixed subassembly includes slide rail 12, slider 13, fixed cylinder 14 and fixed block 15, slide rail 12 with 3 fixed connection of pedestal, slider 13 sliding joint in the slide rail 12 upper end, the one end fixed connection of fixed cylinder 14 one side of slider 13, the opposite side fixed connection of slider 13 fixed block 15.

One end, facing the hub to be processed, of the fixing block 15 is arc-surface-shaped, and a rubber layer 16 is covered on the arc-surface-shaped position of the fixing block 15. The positioning column assembly comprises a thin positioning column 17 and a thick positioning column 18, the diameter of the upper end face of the thin positioning column 17 is smaller than the middle through hole of the hub part, and the diameter of the upper end face of the thick positioning column 18 is larger than the middle through hole of the hub part. The end of the adjusting arm 8 facing the hub to be machined is covered with a rubber layer 16. The outer surface of the handle 11 is covered with a rubber layer 16, and a plurality of concave-convex marks are arranged on the rubber layer 16. The base 1 is provided with a plurality of screw holes 19. The upper end of the base 1 is fixedly connected with a plurality of lifting rings 20. Cushion blocks 21 are arranged at the fixed connection positions of the pedestal 3 and the slide rails 12. And a cushion block 21 is arranged at the fixed connection part of the pedestal 3 and the clamping component.

In the using process, the fixture is fixed on a processing machine tool, a hub part to be processed is placed in the middle of the upper end of the pedestal 3, the central cylinder 4 is started, the thin positioning column 17 is inserted into a middle through hole of the hub part to be processed, the primary cylinder 6 and the secondary cylinder 9 are started in sequence, the distance between the adjusting arm 8 and the hub part to be processed and the distance between the gripper 11 and the hub part to be processed are adjusted in sequence, and the gripper 11 clamps the periphery of the hub part to be processed; and then, the fixed cylinder 14 is started to enable the fixed block 15 to tightly press the hub part to be machined, then, the hub part to be machined is machined, after machining is finished, the first-stage cylinder 6 and the second-stage cylinder 9 are respectively started to enable the gripper 11 to be separated from the hub, meanwhile, the fixed cylinder 14 is started to enable the fixed block 15 to be separated from the hub, the central cylinder 4 is started to enable the coarse positioning column 18 to ascend, and therefore the machined hub is lifted up and taken down.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

the above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The fixture for machining the automobile hub is characterized by comprising a base (1), a support (2), a pedestal (3) and clamping assemblies, wherein the base (1) is fixedly connected with the pedestal (3) through the support (2), a central cylinder (4) is fixedly connected to the middle of the base (1), a positioning column assembly is fixedly connected to the upper end of the central cylinder (4), a hole (5) is formed in the middle of the pedestal (3), the positioning column assembly corresponds to the hole (5), and four clamping assemblies are fixedly connected to the upper end of the pedestal (3);

the centre gripping subassembly includes one-level cylinder (6), one-level connection piece (7), regulating arm (8), second grade cylinder (9), second grade connection piece (10) and tongs (11), one-level cylinder (6) with pedestal (3) fixed connection, the one end of one-level cylinder (6) with the one end hinge of one-level connection piece (7) connects, the other end of one-level connection piece (7) with the one end fixed connection of regulating arm (8), the other end hinge of regulating arm (8) connects tongs (11), be equipped with on tongs (11) second grade connection piece (10), second grade cylinder (9) fixed connection in the centre of regulating arm (8), the one end fixed connection of second grade cylinder (9) second grade connection piece (10).

2. The fixture for machining the automobile hub according to claim 1, wherein at least two fixing assemblies are fixedly connected to the upper end of the pedestal (3), each fixing assembly comprises a sliding rail (12), a sliding block (13), a fixing cylinder (14) and a fixing block (15), the sliding rail (12) is fixedly connected with the pedestal (3), the sliding block (13) is slidably connected to the upper end of the sliding rail (12), one end of the fixing cylinder (14) is fixedly connected to one side of the sliding block (13), and the other side of the sliding block (13) is fixedly connected to the fixing block (15).

3. The clamp for machining the automobile hub according to claim 2, wherein one end, facing the hub to be machined, of the fixing block (15) is arc-surface-shaped, and a rubber layer (16) covers the arc-surface-shaped fixing block (15).

4. the fixture for machining the automobile hub according to claim 2, wherein a cushion block (21) is arranged at a fixed connection position of the pedestal (3) and the slide rail (12).

5. The fixture for machining the automobile hub according to claim 1, wherein the locating column assembly comprises a thin locating column (17) and a thick locating column (18), the diameter of the upper end face of the thin locating column (17) is smaller than the middle through hole of the hub part, and the diameter of the upper end face of the thick locating column (18) is larger than the middle through hole of the hub part.

6. The clamp for machining the automobile hub according to claim 1, wherein one end, facing the hub to be machined, of the adjusting arm (8) is covered with a rubber layer (16).

7. The clamp for machining the automobile hub according to claim 1, wherein a rubber layer (16) covers the outer surface of the gripper (11), and a plurality of concave-convex marks are arranged on the rubber layer (16).

8. The fixture for machining the automobile hub according to claim 1, wherein a plurality of screw holes (19) are formed in the base (1).

9. The fixture for machining the automobile hub according to claim 1, wherein a plurality of lifting rings (20) are fixedly connected to the upper end of the base (1).

10. the fixture for machining the automobile hub according to claim 1, wherein a cushion block (21) is arranged at a fixed connection position of the pedestal (3) and the clamping assembly.