Clamp for hub machining

Abstract

The utility model relates to the technical field of clamps, in particular to a clamp for hub machining. A clamp for hub machining comprises a base, a plurality of sliding grooves are formed in the base in a surrounding mode, a sliding base is connected into each sliding groove in a sliding mode, an electric push rod I is installed between each sliding base and the inner wall of the corresponding sliding groove, a U-shaped clamp is fixedly connected to each sliding base, and a pressing rod with the adjustable height is installed on each U-shaped clamp. The inner side of each pressing rod is vertically connected into the corresponding U-shaped clamp in a sliding mode. The vertical heights of the multiple pressing rods can be synchronously adjusted through a driving piece. The hub clamping device has the beneficial effect that hubs of different sizes are clamped and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, more specifically speaking, a kind of fixture for hub machining. BACKGROUND

[0002] In the hub machining process, how to efficiently, accurately reliably clamps and fixes various sizes of hub, become the important technical problem that needs to be solved in the field of hub machining.In the traditional hub machining process, the design of commonly used fixture often has many limitations. Many fixtures can only be clamped and fixed to the hub of specific size, when different sizes of hub need to be processed, the corresponding fixture needs to be replaced. This not only increases the equipment cost, but also leads to the extension of production line downtime, greatly reduces the production efficiency. Moreover, frequent replacement of fixture can also introduce new positioning error, affect the machining accuracy of hub. SUMMARY

[0003] The utility model provides a kind of fixture for hub machining, it has beneficial effect for the hub of different sizes is clamped and fixed.

[0004] A kind of fixture for hub machining, including base, multiple sliding slots are opened around on base, each sliding slot is slidably connected with slide each other, each slide is installed with electric push rod I between the inner wall of sliding slot, each slide is fixed with U-shaped fixture each other, each U-shaped fixture is installed with height adjustable press bar each other.

[0005] The inside of each press bar is vertically slidably connected in the inside of corresponding U-shaped fixture.

[0006] The vertical height of multiple press bars can be synchronously adjusted by driving element.

[0007] The driving element includes circular ring seat, three electric push rods II are evenly fixed between circular ring seat and base, and the outer end of multiple press bars is installed on circular ring seat.

[0008] The press bar is slidably connected between circular ring seat. BRIEF DESCRIPTION OF DRAWINGS

[0009] The utility model will be further explained in detail in combination with the drawings and specific implementation method.

[0010] Figure 1 It is the structure schematic view of a kind of fixture for hub machining;

[0011] Figure 2 It is the structure schematic view of base;

[0012] Figure 3 It is the structure schematic view of U-shaped fixture;

[0013] Figure 4This is a schematic diagram of the compression bar structure;

[0014] Figure 5 This is a schematic diagram of the structure of the pressure bar and the U-shaped clamp.

[0015] Figure 6 This is a schematic diagram of the structure of the ring seat and the pressure rod.

[0016] In the figure: base 101; slide groove 102; electric push rod I 103; slide seat 201; U-shaped clamp 202; rib groove 203; pressure rod 204; protruding rib 205; limit block 206; ring seat 207; electric push rod II 208. Detailed Implementation

[0017] See Figures 1 to 5 The diagram shows an embodiment of vertical and circumferential clamping and fixing of wheel hubs of different sizes according to the present invention.

[0018] A jig for wheel hub processing includes a base 101 with multiple grooves 102 circumferentially formed on the base 101. A slide block 201 is slidably connected in each groove 102. An electric push rod I 103 is installed between each slide block 201 and the inner wall of the groove 102. A U-shaped clamp 202 is fixedly connected to each slide block 201. A height-adjustable pressure rod 204 is installed on each U-shaped clamp 202.

[0019] During the processing of the car wheel hub, the car wheel hub is first placed in the center of the upper end of the base 101. Multiple electric push rods I103 are activated to drive multiple slide blocks 201 to move inward and converge. The multiple slide blocks 201 drive multiple U-shaped clamps 202 to move towards the wheel hub, thereby clamping and fixing the car wheel hub in the circumferential direction to facilitate the further processing of the car wheel hub.

[0020] While multiple U-shaped clamps 202 clamp the wheel hub, they simultaneously drive multiple pressure rods 204 to approach the wheel hub. The vertical height of the multiple pressure rods 204 is adjusted so that they fit against the top surface of the wheel hub, thereby clamping and limiting the wheel hub in the vertical direction and preventing the wheel hub from moving vertically during processing.

[0021] Since the height of multiple pressure rods 204 is adjustable, the clamp can clamp and fix car wheel hubs of different thicknesses. The spacing between multiple U-shaped clamps 202 is controlled by electric push rod I103, thereby enabling the clamping and fixing of car wheel hubs of different diameters.

[0022] See Figure 5 and 6 A schematic diagram of an embodiment of the present invention for improving wheel hub positioning accuracy is shown.

[0023] The inner side of each pressure rod 204 is vertically slidably connected to the inside of the corresponding U-shaped clamp 202; the U-shaped clamp 202 guides the pressure rod 204 vertically.

[0024] The vertical height of the multiple pressure rods 204 can be adjusted synchronously by a drive component.

[0025] Simultaneous control of multiple pressure rods 204 ensures that all pressure rods 204 press onto the wheel hub at the same time, with the same force and position, thereby improving the positioning accuracy of the wheel hub. This is in contrast to the traditional method of controlling each pressure rod 204 individually, which may lead to asynchronous movement between different pressure rods 204, thus affecting the positioning accuracy and consistency of the wheel hub.

[0026] During the machining process, the wheel hub is subjected to various forces. Multi-point clamping can effectively prevent the wheel hub from shaking or shifting, ensuring machining quality. Secondly, multiple pressure rods 204 act on the wheel hub simultaneously, forming multi-point clamping, which greatly enhances the stability of clamping.

[0027] Furthermore, individually controlling each lever 204 may be affected by factors such as the operator's skill level and experience, leading to human error. The design of controlling multiple levers 204 simultaneously reduces such human intervention and lowers the possibility of human error.

[0028] See Figure 6 The diagram shows an embodiment of the present invention in which the vertical height of multiple pressure rods 204 are simultaneously adjusted.

[0029] The driving component includes a circular seat 207, three electric push rods II 208 are uniformly fixed between the circular seat 207 and the base 101, and the outer ends of multiple pressure rods 204 are all mounted on the circular seat 207.

[0030] Multiple electric push rods II 208 are activated to drive multiple pressure rods 204 to move vertically in sync, thereby causing the multiple pressure rods 204 to slide vertically within multiple U-shaped clamps 202, achieving the purpose of synchronously adjusting the vertical height of the multiple pressure rods 204, so that the multiple pressure rods 204 can simultaneously press against and clamp the upper end of the wheel hub to fix its position.

[0031] See Figure 6 The diagram shows an embodiment of the control lever 204 moving according to the present invention;

[0032] The pressure rod 204 is slidably connected to the annular seat 207; the pressure rod 204 is slidably connected to the U-shaped clamp 202; thus, it does not affect the U-shaped clamp 202 from driving the pressure rod 204 to move horizontally towards the wheel hub, so that the inner side of the pressure rod 204 is close to the wheel hub, nor does it affect the annular seat 207 from driving the pressure rod 204 to move downward so that the inner side of the pressure rod 204 presses against the wheel hub to vertically clamp the wheel hub.

[0033] Furthermore, each of the U-shaped clamps 202 has two symmetrically formed grooves 203 on its inner side, and each pressure rod 204 has an integrally formed protrusion 205 that matches the groove 203;

[0034] The cooperation between the groove 203 and the protrusion 205 enables the U-shaped clamp 202 to drive the pressure rod 204 to move synchronously in the horizontal direction, thereby enabling the U-shaped clamp 202 to drive the pressure rod 204 to move closer to the wheel hub.

[0035] See Figure 2 and 5 This shows a schematic diagram of an embodiment of vertically limiting the slide 201 according to the present invention;

[0036] The cross-sectional shape of the slide groove 102 is cross-shaped, and the cross-sectional shape of the slide block 201 is adapted to the shape of the slide groove 102;

[0037] The cooperation between the slide groove 102 and the slide block 201 vertically limits the slide block 201, so that the slide block 201 can only move in the horizontal direction, preventing the U-shaped clamp 202 and the pressure rod 204 from moving vertically.

[0038] See Figure 4 The diagram shows an embodiment of the present invention that prevents the pressure bar 204 from detaching.

[0039] The outer end of the pressure rod 204 is fixed to the limit block 206 by screws to prevent the pressure rod 204 from detaching from the annular seat 207.

[0040] See Figure 4 A schematic diagram of an embodiment of the present invention for avoiding scratching wheel hubs is shown;

[0041] The inner side of the pressure rod 204 is rounded to prevent the inner side of the pressure rod 204 from scratching the wheel hub.

[0042] Furthermore, rubber protective pads are affixed to the inner side of the U-shaped clamp 202 and the bottom surface of the pressure rod 204;

[0043] The rubber protective pads on the U-shaped clamp 202 and the pressure bar 204 protect the clamping part of the car wheel hub and prevent scratches during the processing of the car wheel hub.

[0044] Both ends of the electric push rod I 103 and the electric push rod II 208 are welded with flanges. The fixed end and the telescopic end of the electric push rod I 103 are fixedly connected to the inner wall of the slide 102 and the slide seat 201 by flanges and screws, respectively. The fixed end and the telescopic end of the electric push rod II 208 are fixedly connected to the inner wall of the base 101 and the annular seat 207 by flanges and screws, respectively.

[0045] One option for the electric linear actuator I103 and electric linear actuator II208 is JS-TGZ-U2, and other applicable models in the prior art can also be used.

Claims

1. A jig for machining wheel hubs, characterized in that, The device includes a base with multiple grooves circumferentially arranged on it. Each groove contains a sliding seat, and each sliding seat is fitted with an electric push rod I between itself and the inner wall of the groove. Each sliding seat is fixed with a U-shaped clamp, and each U-shaped clamp is fitted with a height-adjustable pressure rod.

2. A jig for wheel hub machining according to claim 1, characterized in that, The inner side of each pressure bar is vertically slidably connected to the inside of the corresponding U-shaped clamp.

3. A jig for wheel hub machining according to claim 2, characterized in that, The vertical height of multiple pressure bars can be adjusted synchronously via a drive mechanism.

4. A jig for wheel hub machining according to claim 3, characterized in that, The driving component includes a circular seat, and three electric push rods II are evenly fixed between the circular seat and the base. The outer ends of multiple pressure rods are all mounted on the circular seat.

5. A jig for wheel hub machining according to claim 4, characterized in that, The pressure rod and the ring seat are slidably connected.

6. A jig for wheel hub machining according to claim 5, characterized in that, Two symmetrical grooves are opened on the inner side of each U-shaped clamp, and each pressure bar has an integrally formed protrusion that matches the groove.

7. A jig for wheel hub machining according to claim 1, characterized in that, The cross-sectional shape of the groove is cross-shaped, and the cross-sectional shape of the slide block is adapted to the shape of the groove.

8. A jig for wheel hub machining according to claim 6, characterized in that, A limit block is fixed to the outer end of the pressure rod.

9. A jig for wheel hub machining according to claim 8, characterized in that, The inner side of the pressure bar has rounded corners.

10. A jig for wheel hub machining according to claim 6, characterized in that, Rubber protective pads are attached to the inside of the U-shaped clamp and the bottom of the pressure bar.

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