CN211438773U - Expanding mechanism of hub welding system - Google Patents

Abstract

The utility model provides an expanding mechanism of a hub welding system, which comprises a frame, a fixed seat arranged above the frame, a motor arranged on the fixed seat and matched with a ball screw, the ball screw and a guide rail distributed around the fixed seat, and an expanding claw driven by the ball screw and matched with the guide rail to move; the expansion claw moves along the guide rail under the matching of the motor and the ball screw, adjusts the workpiece to a set diameter, and enters a welding workshop together with the workpiece, and the expansion claw loosens the workpiece after the welding is finished; the expanding mechanism of the hub welding system does not need an operator to put a workpiece into the die sleeve for shaping and drive the die to weld. The method avoids the need of die sleeving before welding and the complex workload of die removal after welding, and improves the production efficiency.

Description

Expanding mechanism of hub welding system

Technical Field

The utility model relates to a welding expansion design field especially relates to a wheel hub welding system's expanding mechanism.

Background

After a plate is cut and rolled, an opening exists in the rolled plate and the rolled plate is not a whole, so that the diameters of all workpieces after being rolled are slightly different, and the current treatment method generally comprises the steps of putting the workpieces into a die sleeve for shaping by an operator and carrying a die for welding. Therefore, the mold needs to be sleeved before welding and needs to be disassembled after welding, the workload of operators is increased, the production efficiency is influenced, molds with various sizes need to be additionally manufactured, and the molds need to be stored and maintained in a large area while capital is wasted.

Therefore, in the current processing method, an operator generally puts the workpiece into a die set for shaping and carries the die to weld the workpiece, aiming at the fact that the diameters of the workpieces after the conventional coiled plate are slightly different. Therefore, the mold needs to be sleeved before welding, and the mold needs to be disassembled after welding, so that the workload of operators is increased, the production efficiency is influenced, molds of various sizes need to be additionally manufactured, the problem that a large part of area needs to be occupied for storing and maintaining the molds and the like when funds are wasted, and the expansion shaping mode of the hub needs to be further optimized and modified.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a diameter to each work piece after the board is rolled up all has slight difference, and the processing method of current situation is generally put into the mould cover through the operator to the work piece and is stereotyped, takes the mould to weld. Therefore, the mold needs to be sleeved before welding, and the mold needs to be disassembled after welding, so that the workload of operators is increased, the production efficiency is influenced, molds of various sizes need to be additionally manufactured, the large area needs to be occupied for storing and maintaining the molds while the fund is wasted, and the like.

The technical scheme of the utility model as follows, include:

the device comprises a rack, a fixed seat arranged above the rack, a motor arranged on the fixed seat and matched with a ball screw, the ball screw and a guide rail which are distributed around the fixed seat, and an expansion claw which is driven by the ball screw and moves in a matched manner with the guide rail; the expansion claw moves along the guide rail under the matching of the motor and the ball screw, the workpiece is adjusted to a set diameter and enters a welding workshop together with the workpiece, and the expansion claw loosens the workpiece after the welding is finished.

Furthermore, a proximity sensor matched with the expansion claw is arranged beside the expansion claw, when the expansion claw moves on the guide rail, the movement amplitude of the expansion claw is controlled through the proximity sensor, and the diameter of the workpiece to be set can be set by adjusting the position of the proximity sensor.

Furthermore, the proximity sensor is arranged on the rack and fixed on the rack through the clamping groove to be matched with the expansion claw, the position of the proximity sensor can be adjusted on the clamping groove, and the position of the proximity sensor can be adjusted more accurately under the action of the clamping groove.

Furthermore, scales are arranged on the clamping groove, so that the accuracy of the position can be conveniently corrected when the proximity sensor is adjusted.

Furthermore, a clamping claw and a clamping cylinder are respectively arranged on two sides of the expansion claw, and the two clamping cylinders on the two sides are provided with two movable clamping claws to fix the workpiece on the expansion claw.

Furthermore, rubber cushion layers are arranged at the contact positions of the expansion claw and the clamping claw with the workpiece, and when the workpiece is clamped, the rubber cushion layers can increase the friction force between the expansion claw and the workpiece and can not scratch the surface of the workpiece.

Furthermore, be equipped with 3 groups ball and guide rail around the fixing base.

Further, the included angle between 3 groups of ball screws of the ball screws is 120 degrees.

Furthermore, 3 groups of ball screws of the ball screws are intersected on the fixed seat and are synchronously driven by the same motor.

Furthermore, the frame is of an inverted Y-shaped structure.

Further, the motor is a servo motor.

An expanding mechanism of wheel hub welding system, its advantage lies in:

1. the expanding mechanism of the hub welding system does not need an operator to put a workpiece into the die sleeve for shaping and drive the die to weld. The method avoids the need of die sleeving before welding and the complex workload of die removal after welding, and improves the production efficiency.

2. Expansion claw is equipped with complex proximity sensor with it on one side, and when the expansion claw removed on the guide rail, through the range of movement of proximity sensor control expansion claw, can set up the diameter that the work piece need be set for through the position of adjustment proximity sensor, adapt to not unidimensional work piece, improved the expansion mechanism commonality, need not additionally make the mould of various sizes, still need occupy a most area when extravagant fund and deposit and maintain the mould.

3. The ball screw and the guide rail are driven to move by the matching of the expansion claw and the guide rail, so that 3 groups of ball screws synchronously operate, and the acting force for opening the workpiece is more uniform.

4. The rubber cushion layers are arranged at the contact positions of the expansion claw and the clamping claw with the workpiece, and when the workpiece is clamped, the rubber cushion layers can increase the friction force between the expansion claw and the workpiece and can not scratch the surface of the workpiece.

Drawings

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below; it is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a front view of an expanding mechanism of a hub welding system according to the present invention.

Fig. 2 is a left side view of the expanding mechanism of the hub welding system provided by the present invention.

Fig. 3 is a perspective view of an expanding mechanism of a hub welding system according to the present invention.

Fig. 4 is a partial view of an expanding mechanism of a hub welding system according to the present invention.

Reference numerals

10 rack 101 fixing seat

102 motor 201 guide rail

202 ball screw 203 expansion claw

204 rubber cushion layer 301 cylinder

302 clamping jaw 401 clamping groove

402 proximity sensor

Detailed Description

The utility model provides a pair of expanding mechanism of wheel hub welding system, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should be further understood that the term "and/or" as used in the specification and appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

The utility model provides a pair of wheel hub welding system's expanding mechanism combines fig. 1, fig. 2, fig. 3, fig. 4 to show, include:

the device comprises a rack 10, a fixed seat 101 arranged above the rack 10, a motor 102 arranged on the fixed seat 101 and matched with a ball screw 202, the ball screw 202 and a guide rail 201 which are distributed around the fixed seat 101, and an expansion claw 203 which is driven by the ball screw 202 and matched with the guide rail 201 to move; the expansion claw 203 moves along the guide rail 201 under the matching of the motor 102 and the ball screw 202, adjusts the workpiece to a set diameter, and enters a welding workshop together with the workpiece, and after the welding is finished, the expansion claw 203 releases the workpiece.

Specifically, a proximity sensor 402 matched with the expansion claw 203 is arranged beside the expansion claw 203, when the expansion claw 203 moves on the guide rail 201, the movement amplitude of the expansion claw 203 is controlled by the proximity sensor 402, and the diameter of the workpiece to be set can be set by adjusting the position of the proximity sensor 402.

Specifically, the proximity sensor 402 is arranged on the rack 10, and is fixed on the rack 10 through the card slot 401 to be matched with the expansion claw 203, so that the position of the proximity sensor 402 can be adjusted on the card slot 401, and the position of the proximity sensor 402 can be adjusted more accurately under the action of the card slot 401.

Specifically, scales are arranged on the clamping groove 401, and the accuracy of the position is conveniently corrected when the proximity sensor 402 is adjusted.

Specifically, two clamping claws 302 and two clamping cylinders 301 are respectively arranged on two sides of the expansion claw 203, and the two clamping cylinders 301 on two sides are used for driving the two movable clamping claws 302 on two sides to fix the workpiece on the expansion claw 203.

Specifically, the rubber cushion 204 is arranged at the contact position between the expansion claw 203 and the workpiece and the contact position between the clamping claw 302 and the workpiece, and when the workpiece is clamped, the rubber cushion 204 can increase the friction force between the expansion claw 203 and the workpiece and can not scratch the surface of the workpiece.

Specifically, 3 groups of ball screws 202 are arranged around the fixed seat 101, and the guide rails 201 are matched with the expansion claws 203 to adjust the workpiece to a set diameter.

Specifically, the included angle between 3 groups of ball screws 202 of the ball screws 202 is 120 degrees, and the uniformly distributed acting force is more uniform.

Specifically, 3 groups of ball screws 202 of the ball screws 202 are intersected on the fixed seat 101 and are synchronously driven by the same motor 102, only the upper part of the 3 groups of expansion claws 203 is fixed with the workpiece, the lower 2 groups of expansion claws 203 are responsible for adjusting the workpiece to a set diameter, and the 3 groups of expansion claws 203 synchronously act on the workpiece, so that the acting force is more average.

Specifically, the frame 10 has an inverted Y-shaped structure.

Specifically, the motor 102 is a servo motor 102.

In summary, the expansion claw is driven by the ball screw to move in cooperation with the guide rail; the expansion claw moves along the guide rail under the matching of the motor and the ball screw, adjusts the workpiece to a set diameter, and enters a welding workshop together with the workpiece, and the expansion claw loosens the workpiece after the welding is finished; a proximity sensor matched with the expansion claw is arranged beside the expansion claw, when the expansion claw moves on the guide rail, the movement amplitude of the expansion claw is controlled by the proximity sensor, and the diameter of the workpiece to be set can be set by adjusting the position of the proximity sensor; the proximity sensor is arranged on the rack and fixed on the rack through the clamping groove to be matched with the expansion claw, the position of the proximity sensor can be adjusted on the clamping groove, and the position of the proximity sensor can be adjusted more accurately under the action of the clamping groove; scales are arranged on the clamping groove, so that the accuracy of the position can be conveniently corrected when the proximity sensor is adjusted; the two sides of the expansion claw are respectively provided with a clamping claw and a clamping cylinder, and the two clamping cylinders at the two sides are used for driving the two movable clamping claws at the two sides to fix the workpiece on the expansion claw; rubber cushion layers are arranged at the contact positions of the expansion claw and the clamping claw with the workpiece, and when the workpiece is clamped, the rubber cushion layers can increase the friction force between the expansion claw and the workpiece and can not scratch the surface of the workpiece; 3 groups of ball screws, guide rails and expansion claws are arranged around the fixed seat and matched with each other to adjust the workpiece to a set diameter; the included angles among 3 groups of ball screws of the ball screws are 120 degrees, and the uniformly distributed acting force is more uniform; 3 groups of ball screws of the ball screws are intersected on the fixed seat and are synchronously driven by the same motor; the frame is of an inverted Y-shaped structure; the motor is a servo motor; the expansion mechanism of the hub welding system does not need an operator to put a workpiece into a die sleeve for shaping and drive a die to weld; the complex workload of die sleeving before welding and die removing after welding is avoided, and the production efficiency is improved; the expansion claw is provided with a proximity sensor matched with the expansion claw, when the expansion claw moves on the guide rail, the moving amplitude of the expansion claw is controlled by the proximity sensor, the diameter of a workpiece to be set can be set by adjusting the position of the proximity sensor, the expansion claw is suitable for workpieces of different sizes, the universality of an expansion mechanism is improved, molds of various sizes do not need to be manufactured additionally, and the molds need to be stored and maintained in a large area while capital is wasted; the ball screw and the guide rail are driven to move by the matching of the expansion claw through the same servo motor, so that 3 groups of ball screws synchronously operate, and the acting force for opening the workpiece is more uniform; the contact positions of the expansion claw and the clamping claw with the workpiece are respectively provided with a rubber cushion layer, when the workpiece is clamped, the rubber cushion layers can increase the friction force between the expansion claw and the workpiece, and the surface of the workpiece cannot be scratched.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims (10)

1. An expansion mechanism for a hub welding system, comprising: the device comprises a rack, a fixed seat arranged above the rack, a motor arranged on the fixed seat and matched with a ball screw, the ball screw and a guide rail which are distributed around the fixed seat, and an expansion claw which is driven by the ball screw and moves in a matched manner with the guide rail; the expansion claw moves along the guide rail under the matching of the motor and the ball screw.

2. The expanding mechanism of a hub welding system as set forth in claim 1, wherein said expanding jaws are flanked by proximity sensors cooperating therewith.

3. The expansion mechanism of the hub welding system of claim 2, wherein the proximity sensor is disposed on the frame and engages the expansion pawl sensor.

4. The expanding mechanism of a hub welding system as claimed in claim 1, wherein the expanding claw is provided with a clamping claw and a clamping cylinder on both sides.

5. The expanding mechanism of a hub welding system as recited in claim 1, wherein the expanding jaws and the clamping jaws are provided with rubber cushions at the positions where they contact the workpiece.

6. The expanding mechanism of a hub welding system as claimed in claim 1, wherein 3 sets of ball screws and guide rails are provided around the fixed base.

7. The expanding mechanism of a hub welding system as recited in claim 6, wherein the included angle between 3 sets of ball screws is 120 °.

8. The expanding mechanism of a hub welding system as claimed in claim 1, wherein 3 sets of ball screws are intersected on the fixed base and synchronously driven by the same motor.

9. The expanding mechanism of a wheel hub welding system as defined in claim 1, wherein said frame is an inverted Y-shaped structure.

10. The expanding mechanism of a wheel hub welding system as defined in claim 1, wherein said motor is a servo motor.

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