WO2020164260A1

WO2020164260A1 - Shaft workpiece positioning device, and welding system having shaft workpiece positioning device

Info

Publication number: WO2020164260A1
Application number: PCT/CN2019/115550
Authority: WO
Inventors: 陆炳融; 郭敬; 马宏波; 林涛; 朱振友
Original assignee: 江苏北人机器人系统股份有限公司
Priority date: 2019-02-13
Filing date: 2019-11-05
Publication date: 2020-08-20
Also published as: CN109570897A

Abstract

A shaft workpiece positioning device (100) adaptable to different sizes, comprising a first gripping mechanism (2) and a second gripping mechanism (3) disposed in the length direction and spaced from each other, and a supporting mechanism (4) disposed between the first gripping mechanism (2) and the second gripping mechanism (3). The supporting mechanism (4) comprises a supporting base (44), and a supporting assembly (43) disposed on the supporting base (44) and used for supporting a shaft workpiece; the supporting assembly (43) is provided with a pair of symmetrically disposed supporting portions (41) on both sides of the central axis of the shaft workpiece supported by the supporting assembly (43); the pair of supporting portions (41) comprises a pair of inclined portions (411) having the top ends approach toward each other, a pair of symmetrically disposed abutting portions (412) connected in such a manner that the abutting portions (412) can be moved along the inclination directions of the pair of inclined portions (411), and a first power unit (413) that provides power for the abutting portions (412) to move along the inclined portions (411). Also provided is a welding system having the shaft workpiece positioning device. The positioning device can adaptively position shaft workpieces of different sizes, and the welding system can implement automatic loading and unloading, thereby achieving efficient and flexible intelligent manufacturing and production, reducing the production cost, and improving the production efficiency.

Description

Shaft workpiece positioning device and welding system with the shaft workpiece positioning device

This application claims the priority of the Chinese patent application whose application date is February 13, 2019, the application number is 201910112436.2, and the invention title is "A shaft-type workpiece positioning device and a welding system with the shaft-type workpiece positioning device". The entire content is incorporated into this application by reference.

Technical field

The invention relates to the field of welding technology, and more specifically, a shaft-type workpiece positioning device and a welding system with the shaft-type workpiece positioning device.

Background technique

In the prior art, the machining methods and equipment used for shaft parts and flange parts have been developed and applied quite maturely. However, most of the current manufacturing technologies are only for the welding of single parts, and for different sizes and models. Separate parts and different equipment increase production costs and reduce production efficiency.

Therefore, it is necessary to improve the existing welding system of shaft parts.

Summary of the invention

The object of the present invention is to provide a shaft workpiece positioning device and a welding system with the shaft workpiece positioning device.

In order to achieve the above-mentioned purpose of the invention, the present invention provides a shaft-type workpiece positioning device, which includes a first clamping mechanism and a second clamping mechanism arranged at intervals along the length direction, and the first clamping mechanism and the A supporting mechanism between the second clamping mechanisms, the supporting mechanism includes a supporting base and a supporting assembly arranged on the supporting base to support a shaft-like workpiece, and the supporting assembly is at the shaft supported by the supporting assembly. A pair of symmetrically arranged support parts are provided on both sides of the central axis of the similar workpiece. A pair of the support parts has a pair of inclined parts whose top ends are close to each other, and a pair of inclined parts is connected and symmetrically arranged to move along the inclined direction of the pair of inclined parts. The abutting portion and a first power unit that provides power for the abutting portion to move along the inclined portion.

Further, the distance between the first clamping mechanism and the second clamping mechanism is adjustable along the length direction for clamping the shaft workpieces of different lengths.

Further, the shaft-type workpiece positioning device further includes a base and at least one first slide rail arranged on the base along the length direction, and the bottom of the second clamping mechanism is provided with a base for contacting the first slide rail. The first sliding groove is slidably connected, and a second power unit is provided on the base to provide power for sliding of the second clamping mechanism.

Further, the support assembly is slidably connected to the first slide rail and a third power unit is provided on the base to provide power for the support assembly to slide.

Further, the inclined portion is provided with at least one second slide rail along the inclination direction of the inclined portion, and the abutting portion is provided with a second slide groove for sliding connection with the second slide rail.

Further, the bottom of each abutting portion is provided with a rack extending along the oblique direction of the inclined portion, the support assembly is also provided with a gear meshing with the rack, the first power unit The rotation output shaft is linked with the gear to drive the pair of abutting parts to move up and down synchronously.

Further, at least one universal ball bearing is provided at the upper end of the two abutting parts, and the ball of the universal ball bearing is arranged toward the shaft workpiece placed above it so that the shaft workpiece is placed on the When the supporting part is used, the ball abuts against the shaft-like workpiece.

Further, the first clamping mechanism is provided with a chuck that is rotatably connected with the first clamping mechanism for clamping one end of the shaft-like workpiece in the longitudinal direction and driving the shaft-like workpiece to rotate in the radial direction And a fourth power unit that provides power for clamping/un-clamping of the chuck, and the first clamping mechanism is further provided with a fifth power unit that provides power for driving the chuck to rotate.

Further, one end of the second clamping mechanism facing the first clamping mechanism is provided with an abutting portion for abutting against one end of the shaft-like workpiece in the longitudinal direction.

In order to achieve the above-mentioned object of the invention, the present invention provides a welding system, which has any one of the shaft-type workpiece positioning devices, and the welding system further includes:

A feeding unit for providing the welding system with shaft workpieces to be welded;

A welding unit for welding the shaft workpiece to be welded fixed to the shaft workpiece positioning device;

Unloading unit used to accommodate welded shaft workpieces;

A conveying unit for conveying the shaft workpiece to be welded and the welded shaft workpiece to a predetermined position.

The technical effect of the present invention is to provide a shaft-type workpiece positioning device capable of adaptively positioning shaft-type workpieces of different sizes and a welding system with the shaft-type workpiece positioning device. Shaft workpieces are welded, and automatic loading and unloading can be realized, which realizes efficient and flexible intelligent manufacturing and production, reduces production costs and improves production efficiency.

Description of the drawings

Fig. 1 is a schematic structural diagram of a shaft-type workpiece positioning device according to a preferred embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the shaft-type workpiece positioning device in Fig. 1 at another angle.

Fig. 3 is a schematic structural diagram of the supporting mechanism in Fig. 1 at another angle.

Fig. 4 is a structural schematic diagram of the supporting mechanism in Fig. 3 at another angle.

Fig. 5 is a schematic sectional view of the supporting mechanism in Fig. 4 along the AA' direction.

Fig. 6 is a schematic structural diagram of a welding system according to a preferred embodiment of the present invention.

detailed description

In order to be able to understand the above objectives, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

In the following description, many specific details are set forth in order to fully understand that the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

Example

As shown in Figures 1 to 6, a shaft-type workpiece positioning device 100 includes a first clamping mechanism 2 and a second clamping mechanism 3 arranged at intervals along the length direction, and a first clamping mechanism 2 and The supporting mechanism 4 between the second clamping mechanisms 3 includes a supporting base 44 and a supporting assembly 43 arranged on the supporting base 44 to support a shaft-like workpiece. The supporting assembly 43 A pair of symmetrically arranged support parts 41 are provided on both sides of the central axis of the shaft-like workpiece (not shown) supported by it. The pair of support parts 41 have a pair of inclined parts 411 with the top ends closer to each other, and A pair of abutting portions 412 movably connected in the tilt direction of the inclined portion 411 and symmetrically arranged, and a first power unit 413 that provides power for the abutting portion to move along the inclined portion.

Preferably, the distance between the first clamping mechanism 2 and the second clamping mechanism 3 along the length direction is adjustable for clamping the shaft workpieces of different lengths.

Preferably, the shaft-type workpiece positioning device 100 further includes a base 1 and at least one first slide rail 11 arranged on the base along the length direction. The bottom of the second clamping mechanism 3 is provided with The first sliding groove 31 is slidably connected to the first sliding rail 11, and the base 1 is provided with a second power unit 12 that provides power for the sliding of the second clamping mechanism 3.

Preferably, the support assembly 43 is slidably connected to the first slide rail 11 and the base 1 is provided with a third power unit 13 that provides power for the support assembly 43 to slide.

Preferably, at least one second slide rail 4111 is provided along the inclination direction of the inclined portion 411, and the abutting portion 412 is provided with a second slide groove 4121 for sliding connection with the second slide rail 4111.

Preferably, the bottom of each abutting portion 412 is provided with a rack 4122 extending along the oblique direction of the inclined portion 411, and the supporting assembly 43 is also provided with a gear 42 meshing with the rack 4122, so The gear 42 includes a first gear 421 and a second gear 422 respectively meshing with the two racks 4122. In this embodiment, the first gear 421 and the second gear 422 mesh, and the first power The power output shaft (not shown) of the unit 413 meshes with the gear shaft (not shown) of the first gear 421/the second gear 422. In an alternative embodiment of this embodiment, it may also be The first gear 421 and the second gear 422 are respectively provided with power units for driving them to rotate synchronously.

In this embodiment, the distance and height of the pair of abutting portions 412 are changed by sliding the pair of abutting portions 412 to achieve stable support for the shaft-like workpieces of different pipe diameters.

Preferably, at least one universal ball bearing 4123 is provided at the upper end of the two abutting parts 412, and the ball 4124 of the universal ball bearing 4123 is arranged toward the shaft workpiece placed above it so that the shaft When the workpiece is placed on the supporting assembly 43, the ball 4124 abuts against the shaft workpiece.

In this embodiment, a total of two pairs of the cardan shaft bearings 4123 arranged symmetrically to each other are provided to provide stable support for the shaft workpiece.

Preferably, the first clamping mechanism 2 is provided with a rotational connection with the first clamping mechanism 2 for clamping one end of the shaft workpiece along the length direction and driving the shaft workpiece to rotate in the radial direction The chuck 21 and a fourth power unit (not shown) that provides power for clamping/unclamping of the chuck 21, the first clamping mechanism 2 is also provided to drive the chuck 21 to rotate The fifth power unit 22 that provides power.

Preferably, the chuck 21 has at least three pneumatic jaws 211 for clamping the shaft workpiece.

Preferably, the end of the second clamping mechanism 3 facing the first clamping mechanism 2 is provided with a contact portion 32 for abutting against one end of the shaft-like workpiece in the longitudinal direction.

Preferably, the abutment portion 32 is movably connected to the second clamping mechanism 3 along the length direction, and the second clamping mechanism 3 is further provided with a first power supply for the abutment portion 32 to move along the length direction. Six power unit 33.

In this embodiment, the sixth power unit 33 is an electric motor. In an alternative implementation of this embodiment, the sixth power unit 33 may also be other power components.

This embodiment provides a welding system, which has the shaft workpiece positioning device 100, and the welding system further includes:

A feeding unit 200 for providing the welding system with shaft workpieces to be welded;

A welding unit 300 for welding the shaft workpiece to be welded fixed to the shaft workpiece positioning device;

A blanking unit 400 for accommodating welded shaft workpieces;

A conveying unit 500 for conveying the shaft workpiece to be welded and the shaft workpiece already welded to a predetermined position.

Claims

A shaft-type workpiece positioning device, which is characterized in that it comprises a first clamping mechanism and a second clamping mechanism arranged at intervals along the length direction, and a first clamping mechanism and a second clamping mechanism arranged between the first clamping mechanism and the second clamping mechanism. The supporting mechanism includes a supporting base and a supporting assembly arranged on the supporting base to support a shaft-like workpiece, and the supporting assembly is positioned at two central axes of the shaft-like workpiece supported by it. The side is provided with a pair of symmetrically arranged supporting parts, a pair of said supporting parts having a pair of inclined parts whose top ends are close to each other, a pair of abutting parts which are movably connected and arranged symmetrically along the inclined direction of the pair of inclined parts, and The abutting portion moves along the inclined portion to provide a first power unit.
The shaft-type workpiece positioning device according to claim 1, wherein the first clamping mechanism and the second clamping mechanism have an adjustable distance in the length direction for clamping the shafts of different lengths. Class artifacts.
The shaft workpiece positioning device according to claim 2, further comprising a base and at least one first slide rail arranged on the base along the length direction, and the bottom of the second clamping mechanism is provided with A first sliding groove slidably connected with the first sliding rail, and a second power unit that provides power for sliding the second clamping mechanism is provided on the base.
The shaft-type workpiece positioning device according to claim 3, wherein the support assembly is slidably connected to the first slide rail, and a third power is provided on the base to provide power for sliding of the support assembly unit.
The shaft-type workpiece positioning device according to any one of claims 1-4, wherein at least one second slide rail is provided on the inclined portion along the inclination direction of the inclined portion, and the abutting portion is provided with There is a second sliding groove for sliding connection with the second sliding rail.
The shaft-type workpiece positioning device according to claim 5, wherein the bottom of each abutting portion is provided with a rack extending along the inclined direction of the inclined portion, and the supporting assembly is also provided with Gears meshed with racks, the rotation output shaft of the first power unit is linked with the gears to drive a pair of the abutting parts to move up and down synchronously.
The shaft-type workpiece positioning device according to claim 6, wherein at least one universal ball bearing is provided at the upper end of the two abutting parts, and the ball of the universal ball bearing faces the The shaft workpiece is arranged so that the ball abuts against the shaft workpiece when the shaft workpiece is placed on the supporting part.
The shaft-type workpiece positioning device according to claim 1, wherein the first clamping mechanism is provided with a rotational connection with the first clamping mechanism for clamping one end of the shaft-type workpiece along the length direction And drive the chuck that rotates the shaft-like workpiece in the radial direction and the fourth power unit that provides power for clamping/un-clamping of the chuck. The first clamping mechanism is also provided for driving the chuck The fifth power unit powered by the disk rotation.
The shaft workpiece positioning device according to claim 1, wherein an end of the second clamping mechanism facing the first clamping mechanism is provided for abutting against an end of the shaft workpiece in the longitudinal direction Of the abutment.
A welding system, having the shaft workpiece positioning device according to any one of claims 1-9, characterized in that the welding system further comprises:

A feeding unit for providing the welding system with shaft workpieces to be welded;

A welding unit for welding the shaft workpiece to be welded fixed to the shaft workpiece positioning device;

Unloading unit used to accommodate welded shaft workpieces;

A conveying unit for conveying the shaft workpiece to be welded and the welded shaft workpiece to a predetermined position.