CN220161611U

CN220161611U - Axiality guiding mechanism and welding equipment

Info

Publication number: CN220161611U
Application number: CN202320822101.1U
Authority: CN
Inventors: 王会敏; 刘德纯
Original assignee: Dongguan Rongcheng Intelligent Equipment Co ltd
Current assignee: Dongguan Rongcheng Intelligent Equipment Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-12-12
Anticipated expiration: 2033-04-12

Abstract

The utility model provides a coaxiality adjusting mechanism and welding equipment, comprising: a support base; the first adjusting component is arranged at the upper part of the supporting seat; the second adjusting component is arranged at the lower part of the supporting seat; an upper clamp mounted on the first adjustment assembly; a lower clamp mounted on the second adjustment assembly; a first drive assembly mounted on the first adjustment assembly; and the second driving assembly is arranged on the second adjusting assembly. According to the scheme, the positions and the orientations of the upper workpiece and the lower workpiece are freely adjusted through the first adjusting assembly, the second adjusting assembly, the translation assembly and the fine adjusting assembly, when the clamp is worn and the coaxiality between the workpieces is deviated, the free adjustment can be timely performed, the high precision of welding clamping can be guaranteed, and the replacement cost of the clamp can be reduced.

Description

Axiality guiding mechanism and welding equipment

Technical Field

The utility model relates to the field of welding fixtures, in particular to a coaxiality adjusting mechanism and welding equipment.

Background

With the increasing requirement of the dimensional accuracy of the existing products, the welding is an essential production process for manufacturing the products, and the requirement of the dimensional control accuracy is also continuously improved. In practical application, in addition to design structure and processing technology, an important method is to improve the clamping precision of the welding fixture in order to control thermal deformation. The technical scheme of the welding fixture suitable for butt welding of workpieces is disclosed in the Chinese patent application with the application number of 201710531781, and the technical scheme is that two fixture assemblies with the same structure are arranged up and down, so that the workpieces are placed in a space formed by a fastening surface and a fastener, and the workpieces are tightly attached to the fastening surface to ensure the circumference and the verticality. The clamping accuracy can be affected when the fastening surface and the fastening piece are worn, but the cost for frequently replacing the fastening surface and the fastening piece is too high if the fastening surface and the fastening piece are worn slightly, so that the clamping accuracy is not suitable for occasions with high-accuracy clamping requirements.

Disclosure of Invention

In order to solve the problems, the utility model provides a coaxiality adjusting mechanism and welding equipment, wherein the coaxiality adjusting mechanism can freely adjust the directions of upper and lower workpieces, and when a clamp is worn, the coaxiality of the workpieces can be ensured by adjusting the clamp, so that the welding precision of the workpieces is ensured.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

a coaxiality adjustment mechanism comprising:

a support base;

the first adjusting component is arranged at the upper part of the supporting seat and is used for adjusting the coaxiality of the upper workpiece;

the second adjusting component is arranged at the lower part of the supporting seat and is used for adjusting the coaxiality of the lower workpiece;

the upper clamping head is arranged on the first adjusting assembly and used for clamping an upper workpiece;

the lower chuck is arranged on the second adjusting assembly and used for clamping a lower workpiece;

the first driving assembly is arranged on the first adjusting assembly and is used for driving the upper chuck;

and the second driving assembly is arranged on the second adjusting assembly and is used for driving the lower chuck.

Further, the first adjusting assembly includes:

the upper adjusting plate is rotatably arranged at the upper part of the supporting seat;

an upper sliding mechanism mounted on the upper adjustment plate;

the left upper adjusting piece is arranged at the first end of the upper sliding mechanism;

the right upper adjusting piece is movably arranged at the second end of the upper sliding mechanism; the first driving component is installed on the upper sliding mechanism and connected with the upper right adjusting piece.

Further, the upper clamping head comprises a left upper clamping head and a right upper clamping head; the left upper chuck is arranged on the left upper adjusting piece; the right upper chuck is mounted on the right upper adjusting piece.

Further, the upper left adjusting member includes:

a rotating seat; the rotating seat is provided with a through hole penetrating through the left side and the right side; a through groove communicated with the through hole is formed in the upper side surface or the lower side surface of the rotating seat; a threaded hole is formed in the front side surface of the rotating seat;

a rotation shaft; the rotating shaft is installed in the through hole; one end of the rotating shaft is provided with a mounting part for mounting the chuck, and the other end of the rotating shaft is provided with a rotating part for applying force to rotate.

Further, an opening bushing is arranged between the rotating shaft and the through hole.

Further, the first driving assembly adopts a double-stroke cylinder to realize a stepped stroke pushing mode; and the double-stroke cylinder is provided with an adjusting nut for adjusting the pushing distance in the first stage.

Further, the supporting seat includes:

a lower support on which the second adjustment assembly is mounted;

the first adjusting component is arranged on the upper support; the upper support is arranged on the lower support through a balancing device; and a position sensor is arranged in the balancing device.

Further, the coaxiality adjusting mechanism further comprises a translation assembly; the bottom of the translation assembly is arranged on the lower support, and the upper part of the translation assembly is connected with the upper support in a sliding manner.

Further, the coaxiality adjusting mechanism further comprises a fine adjustment assembly; the fine adjustment assembly comprises a spring assembly and a jacking assembly; the spring component is arranged on one side of the lower part of the supporting seat; the top end of the spring assembly is connected with the bottom surface of the second adjusting assembly; the jacking component is arranged on the other side of the lower part of the supporting seat; the top end of the jacking component is connected with the bottom surface of the second adjusting component.

A welding apparatus comprising the coaxiality adjustment mechanism described above.

The utility model provides a coaxiality adjusting mechanism, comprising: a support base; the first adjusting component is arranged at the upper part of the supporting seat and is used for adjusting the coaxiality of the upper workpiece; the second adjusting component is arranged at the lower part of the supporting seat and is used for adjusting the coaxiality of the lower workpiece; the upper clamping head is arranged on the first adjusting assembly and used for clamping an upper workpiece; the lower chuck is arranged on the second adjusting assembly and used for clamping a lower workpiece; the first driving assembly is arranged on the first adjusting assembly and is used for driving the upper chuck; and the second driving assembly is arranged on the second adjusting assembly and is used for driving the lower chuck. According to the scheme, the positions and the orientations of the upper workpiece and the lower workpiece are freely adjusted through the first adjusting assembly, the second adjusting assembly, the translation assembly and the fine adjusting assembly, when the clamp is worn and the coaxiality between the workpieces is deviated, the free adjustment can be timely performed, the high precision of welding clamping can be guaranteed, and the replacement cost of the clamp can be reduced.

Drawings

FIG. 1 is a schematic diagram of a coaxiality adjustment mechanism;

FIG. 2 is a schematic structural view of an adjustment assembly;

fig. 3 is a schematic structural view of the translation assembly.

Reference numerals illustrate: the support base 1, the upper support 11, the lower support 12, the seat plate 121, the support plate 122, the reinforcement plate 123, the balancing device 13, the first adjusting unit 2, the upper adjusting plate 21, the upper slide mechanism 22, the upper left adjusting member 23, the swivel base 231, the swivel shaft 232, the through hole 233, the through groove 234, the screw hole 235, the opening bush 236, the spacer 237, the upper right adjusting member 24, the second adjusting unit 3, the lower adjusting plate 31, the lower slide mechanism 32, the lower left adjusting member 33, the lower right adjusting member 34, the first driving unit 4, the adjusting nut 41, the second driving unit 5, the translating unit 6, the base 61, the first translating unit 62, the second translating unit 63, the connecting unit 64, the spring unit 7, the jacking unit 8, the upper clip 9, and the lower clip 10.

Detailed Description

Embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

Other advantages and effects of the present disclosure will become readily apparent to those skilled in the art from the following disclosure, which describes embodiments of the present disclosure by way of specific examples. It will be apparent that the described embodiments are merely some, but not all embodiments of the present disclosure. The disclosure may be embodied or practiced in other different specific embodiments, and details within the subject specification may be modified or changed from various points of view and applications without departing from the spirit of the disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.

Example 1

Fig. 1 to 3 are schematic structural views of a coaxiality adjusting mechanism, which includes:

a support base 1;

the first adjusting component 2 is arranged at the upper part of the supporting seat 1 and is used for adjusting the coaxiality of an upper workpiece;

the second adjusting component 3 is arranged at the lower part of the supporting seat 1 and is used for adjusting the coaxiality of a lower workpiece;

an upper chuck 9, wherein the upper chuck 9 is installed on the first adjusting assembly 2 and is used for clamping an upper workpiece;

a lower chuck 10, wherein the lower chuck 10 is mounted on the second adjusting assembly 3 and is used for clamping a lower workpiece;

a first driving assembly 4, wherein the first driving assembly 4 is installed on the first adjusting assembly 2 and is used for driving an upper chuck 9;

a second driving assembly 5, the second driving assembly 5 is mounted on the second adjusting assembly 3, and is used for driving the lower chuck 10.

In a specific implementation of this embodiment, the upper workpiece may be a head material, and the lower workpiece may be a shank material, for implementing butt resistance welding of the head material and the shank material.

In a specific implementation, the supporting seat 1 includes a lower support 12 and an upper support 11. The second adjusting assembly 3 is mounted on the lower support 12; further, the lower support 12 includes a seat plate 121 and a support plate 122, the support plate 122 is vertically installed on the seat plate 121, and the second adjustment assembly 3 is installed on the support plate 122; the supporting plate 122 and the seat plate 121 are also provided with a reinforcing plate 123 between the surface on which the second adjusting component 3 is mounted to strengthen the stress intensity, so as to prevent the uneven stress from easily loosening. The first adjusting component 2 is arranged on the upper support 11; the upper support 11 is mounted on the lower support 12 through a balancing device 13, and further, the upper support 11 is mounted on a supporting plate 122 through the balancing device 13 so as to realize adjustable connection between the upper support 11 and the lower support 12 in an up-down welding space; further, the balancing device 13 adopts a balancing cylinder structure, and is internally provided with a position sensor, so that when a pressing cylinder (not shown in the figure) arranged above the coaxiality adjusting mechanism is pressed down, if head materials are absent, the pressing cylinder directly presses the first adjusting assembly 2, the first adjusting assembly 2 is caused to move down to push the balancing cylinder down, then an inductor outside the balancing cylinder senses that a magnetic ring inside the cylinder can alarm, and abnormal alarm of the welded headless materials is realized. Further, the part of the upper support, on which the first adjusting component is mounted, and the part of the lower support, on which the second adjusting component is mounted, are respectively provided with an arc-shaped groove, so that the first adjusting component and the second adjusting component can be longitudinally rotated and adjusted, and the longitudinal rotation adjustment of the upper workpiece and the lower workpiece is realized.

In a specific implementation, the coaxiality adjusting mechanism further comprises a translation assembly 6; the bottom of the translation assembly 6 is mounted on the lower support 12; the upper part of the translation assembly 6 is connected with the upper support 11 in an up-down sliding way; further, the translation assembly 6 is mounted on the seat plate 121. The upper support 11 can move back and forth relative to the lower support 12 under the drive of the translation assembly 6, so as to realize the horizontal movement of the upper support 11. Meanwhile, the upper support 11 can move up and down along the connection part with the translation assembly 6, and the lower support 12 supports the upper support 11 through a balance cylinder; when the translation assembly 6 is motionless, after the head material is well placed and clamped under the normal welding condition, the lower pressing cylinder can press the head material to better realize resistance welding, but if the head material is not present, the lower pressing cylinder can press the upper support 11, and the upper support 11 can move downwards when being subjected to the pressure except the self weight, so that the balance cylinder can give an abnormal alarm.

In a specific implementation, the coaxiality adjusting mechanism further comprises a fine adjustment assembly; the fine adjustment assembly comprises a spring assembly 7 and a jacking assembly 8; the spring assembly 7 is arranged on one side of the lower part of the supporting seat 1 and is positioned below the second adjusting assembly 3, and further, the spring assembly 7 is arranged on a supporting plate 122 below the second adjusting assembly 3; the top end of the spring assembly 7 is connected with the bottom surface of the second adjusting assembly 3 so as to be elastically supported; the jacking component 8 is arranged on the other side of the lower part of the supporting seat 1, namely the other side of the supporting plate 122 arranged below the second adjusting component 3; the top end of the jacking component 8 is connected with the bottom surface of the second adjusting component 3, the jacking component 8 adopts the principle of threaded jacking, and one end of the second adjusting component 3 can be pushed to ascend or descend when the screw rod of the jacking component 8 is rotated. The micro-rotation adjustment of the second adjustment assembly 3 is achieved by the cooperation of the spring assembly 7 and the jacking assembly 8.

In a specific implementation, the first adjusting component 2 comprises an upper adjusting plate 21, an upper sliding mechanism 22, an upper left adjusting piece 23 and an upper right adjusting piece 24; the upper adjusting plate 21 is rotatably installed at the upper part of the supporting seat 1, and further, the upper adjusting plate 21 is rotatably installed on the upper support 11; the upper slide mechanism 22 is mounted on the upper adjustment plate 21; the upper left adjuster 23 is mounted at a first end of the upper slide mechanism 22; the right upper adjusting member 24 is movably mounted at a second end of the upper slide mechanism 22; the first driving assembly 4 is mounted on the upper sliding mechanism 22 and connected with the upper right adjusting member 24 to drive the upper right adjusting member 24 to move relative to the upper left adjusting member 23. The second adjusting assembly 3 comprises a lower adjusting plate 31, a lower sliding mechanism 32, a left lower adjusting piece 33 and a right lower adjusting piece 34; the lower adjusting plate 31 is rotatably installed at the lower portion of the supporting seat 1, and further, the lower adjusting plate 31 is rotatably installed on the lower support 12 (i.e., the supporting plate 122); the lower slide mechanism 32 is mounted on the lower adjustment plate 31; the left lower adjuster 33 is mounted at a first end of the lower slide mechanism 32; the right lower adjusting member 34 is movably mounted at the second end of the lower sliding mechanism 32; the second driving assembly 5 is mounted on the lower sliding mechanism 32 and connected to the lower right adjusting member 34 to drive the lower right adjusting member 34 to move relative to the lower left adjusting member 33. Further, the upper adjusting plate 21 and the lower adjusting plate 31 have the same structure, the upper sliding mechanism 22 and the lower sliding mechanism 32 have the same structure, the upper left adjusting member 23 and the lower left adjusting member 33 have the same structure, and the upper right adjusting member 24 and the lower right adjusting member 34 have the same structure, so as to save the design and manufacturing costs. Further, the upper sliding mechanism 22 includes a fixed box member, a sliding rail is disposed inside the box member, an opening is disposed on a right end box surface, a sliding seat is disposed on the sliding rail, a top of the sliding seat extends to the right end box surface through the opening, the upper right adjusting member 24 is mounted on the top of the sliding seat, and the first driving assembly 4 is mounted at a right end of the box member and connected with the sliding seat by a driving rod, so that the upper right adjusting member 24 can be driven to move left and right relative to the upper left adjusting member 23. The same applies to the connection of the lower slide mechanism 32, the lower right adjustment member 34 and the second drive assembly 5.

In a specific implementation, the upper clamping head 9 comprises a left upper clamping head 9 and a right upper clamping head 9; the left upper chuck 9 is mounted on the left upper adjusting piece 23; the upper right clamp 9 is mounted on the upper right adjuster 24. The lower clamp 10 comprises a left lower clamp 10 and a right lower clamp 10; the left lower chuck 10 is mounted on the left lower adjuster 33; the right lower jaw 10 is mounted on the right lower adjuster 34. When the driving assembly drives the right upper or right lower adjusting piece 34, the upper chuck 9 or the lower chuck 10 can be opened or closed, and the workpiece can be clamped or loosened.

In a specific implementation, the upper left adjusting member 23 includes a rotating seat 231 and a rotating shaft 232, and a through hole 233 penetrating through the left and right sides is provided on the rotating seat 231; a through groove 234 communicating with the through hole 233 is formed on the upper side or the lower side of the rotating seat 231; a threaded hole 235 is arranged on the front side surface of the rotating seat 231; the rotation shaft 232 is installed in the through hole 233; one end of the rotating shaft 232 is provided with a mounting part for mounting the chuck, and the other end is provided with a rotating part for applying force to rotate. By installing the bolts on the threaded holes 235, the effect of tightening the rotating shafts 232 can be achieved by tightening the rotating seats 231 on the two sides of the through grooves 234 by the bolts when the bolts are screwed, and the angle of the rotating shafts 232 can be adjusted when the bolts are loosened, so that the adjustment of the front and rear angles of the clamping heads can be achieved; similarly, the structures of the right upper adjusting member 24, the left lower adjusting member 33 and the right lower adjusting member 34 are also the same, so that the free adjustment of the front-rear angles of the upper and lower workpieces is realized. Further, an opening bush 236 is disposed between the rotation shaft 232 and the through hole 233, so that the rotation jamming of the rotation shaft 232 is reduced when the bolt is loosened, and the quick adjustment is facilitated. Further, a spacer 237 is disposed between the mounting portion and the rotating base 231 to reduce the rotation jamming of the rotating shaft 232. Further, the rotating parts of the rotating shafts 232 of the upper right adjusting member 24 and the lower right adjusting member 34 are provided with mounting holes for mounting wire connectors for connecting to a power source for resistance welding.

In specific implementation, the first driving assembly 4 adopts a double-stroke cylinder to realize a stepped stroke pushing mode, after a first stage of pushing by the double-stroke cylinder, the upper right chuck 9 is close to the upper left chuck 9, an upper workpiece (i.e. a head material) is placed, at this time, the gap of the upper chuck 9 is reduced, the upper workpiece cannot fall off, and then the double-stroke cylinder performs pushing of a second stage to tighten the upper workpiece; in order to adapt to the upper workpieces with different sizes, the double-stroke cylinder is provided with an adjusting nut 41 for adjusting the pushing distance in the first stage, namely adjusting the gap size of the upper chuck 9 after the pushing first stage. Further, the second driving assembly 5 also adopts a cylinder structure.

In a specific implementation, the translation assembly 6 includes a base 61, a first translation assembly 62, a second translation assembly 63, and a connection assembly 64; the base 61 is mounted on the seat plate 121; the first translation assembly 62 is mounted on the base 61 for forward and backward translation; the second translation assembly 63 is mounted on the first translation assembly 62 for translating left and right; the link assembly 64 is mounted on the second translation assembly 63 and is slidably connected in the longitudinal direction to the upper support 11. The first translation assembly 62 and the second translation assembly 63 drive the connecting assembly 64 to move forwards and backwards, so that the upper support 11 can be driven to move forwards and backwards, and the second adjustment assembly 3 is fixed at the moment, so that the position relationship between the first adjustment assembly 2 and the second adjustment assembly 3 can be adjusted in the horizontal direction.

Example two

The using method comprises the following steps:

in actual use, the lower workpiece (i.e. handle material) is firstly put on the left lower chuck 10, and the second driving component 5 is started to drive the right lower chuck 10 to tighten the handle material; starting the first driving component 4 to perform a first-stage action, driving the upper right chuck 9 to be close to the upper left chuck 9, and placing an upper workpiece (i.e. a head material); starting the first driving component 4 to perform a second stage of motion to drive the upper right chuck 9 and the upper left chuck 9 to clamp the head material; and starting a lower pressing cylinder to press the upper workpiece and the lower workpiece, and starting welding to perform resistance welding.

In the description of the present utility model, it should be understood that the terms "middle," "length," "upper," "lower," "front," "rear," "vertical," "horizontal," "inner," "outer," "radial," "circumferential," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the present utility model, unless expressly stated or limited otherwise, a first feature "on" a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. The meaning of "a plurality of" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The above description is for the purpose of illustrating the embodiments of the present utility model and is not to be construed as limiting the utility model, but is intended to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the utility model.

Claims

1. A coaxiality adjusting mechanism, comprising:

a support base;

2. The coaxiality adjustment mechanism of claim 1 wherein the first adjustment assembly comprises:

an upper sliding mechanism mounted on the upper adjustment plate;

3. The coaxiality adjustment mechanism of claim 2 wherein the upper collet comprises an upper left collet and an upper right collet; the left upper chuck is arranged on the left upper adjusting piece; the right upper chuck is mounted on the right upper adjusting piece.

4. A coaxiality adjustment mechanism according to claim 3, wherein the upper left adjustment member comprises:

5. The coaxiality adjusting mechanism according to claim 4, wherein an opening bush is provided between the rotation shaft and the through hole.

6. The coaxiality adjustment mechanism of claim 2 wherein the first drive assembly employs a double stroke cylinder to achieve a stepped stroke push mode; and the double-stroke cylinder is provided with an adjusting nut for adjusting the pushing distance in the first stage.

7. The coaxiality adjustment mechanism of claim 1, wherein the support base comprises:

a lower support on which the second adjustment assembly is mounted;

8. The coaxiality adjustment mechanism of claim 7 further comprising a translation assembly; the bottom of the translation assembly is arranged on the lower support, and the upper part of the translation assembly is connected with the upper support in a sliding manner.

9. The coaxiality adjustment mechanism of any one of claims 1 to 8, further comprising a fine adjustment assembly; the fine adjustment assembly comprises a spring assembly and a jacking assembly; the spring component is arranged on one side of the lower part of the supporting seat; the top end of the spring assembly is connected with the bottom surface of the second adjusting assembly; the jacking component is arranged on the other side of the lower part of the supporting seat; the top end of the jacking component is connected with the bottom surface of the second adjusting component.

10. A welding apparatus comprising the coaxiality adjustment mechanism of any one of claims 1 to 9.