Spin welding mechanism of press-fitting welding station

Abstract

The utility model discloses a rotary welding mechanism of a press-fitting welding station, which comprises a rotary clamping component, a laser welding component and a compression proofreading component, and the rotary clamping component is used for placing a product and can drive the product to circumferentially rotate by 360 degrees; the laser welding assembly comprises a first moving assembly and a laser welding device, and the laser welding device is driven by the first moving assembly to directly face a welding seam of a product; the pressing and correcting assembly comprises a second moving assembly, a pressing assembly and a detecting assembly. The pressing assembly can be driven by the second moving assembly to move to the position over the product and is provided with a pressing block which moves vertically. The detection assembly can move to the position above a weld joint of a product under the action of the second moving assembly, and a displacement sensor for detecting the height difference between the shaft sleeve and the stator is arranged on the detection assembly. Through the application of the pressing and correcting assembly, the shaft sleeve and the stator before welding are corrected, so that the shaft sleeve and the stator are in a proper height tolerance range, then 360-degree dead-corner-free laser welding is carried out, and the assembling quality of the shaft sleeve and the stator is improved.

Description

Technical Field

[0001] This utility model belongs to the field of new energy vehicle parts assembly, and relates to a rotary welding mechanism for a press-fit welding station. Background Technology

[0002] In the manufacturing system of new energy vehicles, the air conditioning compressor is an indispensable part, which has a decisive impact on the comfort of the in-vehicle environment. Among them, the press-fitting and welding process of the bushing and stator is extremely critical, as it relates to the overall performance and reliability of the compressor.

[0003] Currently, during the stator assembly process, the bushing and stator need to be welded at the joint after assembly to ensure structural stability and overall performance. However, it is difficult to achieve absolutely precise dimensional control in the individual processing and manufacturing of the bushing and stator. Improper assembly can easily lead to height tolerance issues, affecting the assembly quality of the bushing and stator.

[0004] Therefore, it is necessary to improve existing technologies to overcome their shortcomings. Utility Model Content

[0005] The purpose of this utility model is to provide a rotary welding mechanism for a press-fit welding station, which is used to improve the assembly quality of the bushing and the stator.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A rotary welding mechanism for a press-fit welding station comprises a rotary clamping assembly, a laser welding assembly, and a pressure calibration assembly. The rotary clamping assembly is used to place the product and can drive the product to rotate 360 ​​degrees circumferentially. The laser welding assembly includes a first moving assembly and a laser welder. The laser welder, driven by the first moving assembly, aligns its welding head with the weld seam of the product. The pressure calibration assembly includes a second moving assembly, a pressing assembly, and a detection assembly. The pressing assembly, driven by the second moving assembly, can move to directly above the product and has a vertically movable pressure block. The detection assembly, driven by the second moving assembly, can move to above the weld seam of the product and has a displacement sensor for detecting the height difference between the bushing and the stator.

[0008] As a further improvement of one embodiment of the present invention, the rotary clamping assembly includes a rotary table driven by a first motor, and a three-jaw chuck is provided on the rotary table.

[0009] As a further improvement of one embodiment of the utility model, wherein, the first mobile assembly includes first workstation, the first workstation is provided with the second motor drive's screw rod module A laterally, the screw rod module A is slidably provided with first stage on, the first stage is provided with vertical support, the vertical support is provided with the third motor drive's screw rod module B, the screw rod module B is slidably provided with second stage, the laser welder is fixedly provided on second stage.

[0010] As a further improvement of one embodiment of the utility model, wherein, the first mobile assembly includes first workstation, the first workstation is provided with the second motor drive's screw rod module A laterally, the screw rod module A is slidably provided with first stage on, the first stage is provided with vertical support, the vertical support is provided with the third motor drive's screw rod module B, the screw rod module B is slidably provided with second stage, the laser welder is fixedly provided on second stage.

[0011] As a further improvement of one embodiment of the utility model, wherein, the second mobile assembly includes second workstation, the second workstation is provided with the fourth motor drive's slide platform module, and the pressing assembly and detection assembly are respectively arranged on the slide platform slider of the slide platform module.

[0012] As a further improvement of one embodiment of the utility model, wherein, the second mobile assembly includes second workstation, the second workstation is provided with the fourth motor drive's slide platform module, and the pressing assembly and detection assembly are respectively arranged on the slide platform slider of the slide platform module.

[0013] As a further improvement of one embodiment of the utility model, wherein, the second mobile assembly includes second workstation, the second workstation is provided with the fourth motor drive's slide platform module, and the pressing assembly and detection assembly are respectively arranged on the slide platform slider of the slide platform module.

[0014] As a further improvement of one embodiment of the utility model, wherein, the second mobile assembly includes second workstation, the second workstation is provided with the fourth motor drive's slide platform module, and the pressing assembly and detection assembly are respectively arranged on the slide platform slider of the slide platform module.

[0015] The above technical scheme has the following beneficial effects: through the application of the pressing alignment assembly, the shaft sleeve and the stator are calibrated before welding, so that they are within the appropriate height tolerance range, and then 360-degree laser welding is carried out without dead angle, thereby improving the assembly quality of the shaft sleeve and the stator. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be derived from the provided drawings without creative labor.

[0017] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes of the present application, should still fall within the scope of the technical content disclosed by the present application.

[0018] Fig. 1 The first state structure schematic diagram provided by the present application.

[0019] Fig. 2 The compression and correction assembly structure schematic diagram provided by the present application.

[0020] Fig. 3 The laser welding assembly structure schematic diagram provided by the present application.

[0021] In the figure:

[0022] 1, rotating clamping assembly; 11, first motor; 12, rotating table; 13, three-jaw chuck;

[0023] 2, laser welding assembly; 21, first moving assembly; 22, laser welder;

[0024] 211, first workbench; 212, second motor; 213, screw module A; 214, first carrier; 215, vertical support; 216, third motor; 217, screw module B; 218, second carrier; 219, first linear slide;

[0025] 3, compression and correction assembly; 31, second moving assembly; 32, pressing assembly; 33, detection assembly; 34, drag chain;

[0026] 311, second workbench; 312, fourth motor; 313, slide module; 3131, slide block;

[0027] 321, pressing cylinder; 322, first connecting plate; 323, pressing block;

[0028] 331, stroke cylinder; 332, second connecting plate; 333, displacement sensor. DETAILED DESCRIPTION

[0029] It should be noted that the embodiments and features in the embodiments in the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0031] In the present application, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are generally directed to the direction shown in the drawings, or are directed to the vertical, perpendicular or gravity direction of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.

[0032] EMBODIMENT

[0033] Referring to Figs. 1-3 The rotating welding mechanism of the press-fit welding station is composed of a rotating clamping assembly 1, a laser welding assembly 2 and a pressing alignment assembly 3, and each assembly cooperates to ensure the accuracy and efficiency of the welding process. Among them,

[0034] The rotating clamping assembly 1 includes a rotating table 12 driven by a first motor 11, and a three-jaw chuck 13 is arranged on the rotating table 12. The three-jaw chuck 13 firmly clamps the product through its three telescopic clamping jaws to ensure the stability and safety of the product during rotation. The first motor 11 can drive the product to rotate 360 degrees in the circumferential direction, which facilitates the laser welder to weld from different angles.

[0035] The laser welding assembly 2 includes a first moving assembly 21 and a laser welder 22. The laser welder 22 is driven by the first moving assembly 21 so that the welding head thereon is opposite to the weld of the product.

[0036] The pressing alignment assembly 3 includes a second moving assembly 31, a pressing assembly 32 and a detection assembly 33. The pressing assembly 32 can be moved to the upper side of the product under the driving of the second moving assembly 31. The pressing assembly 32 has a vertically moving pressing block 323. The pressing block 323 is driven by gas pressure or hydraulic pressure to realize accurate pressing in the vertical direction, so as to ensure the close fit of the shaft sleeve and the stator before welding. The detection assembly 33 can be moved to the upper side of the weld of the product under the driving of the second moving assembly 31. The displacement sensor 333 on the detection assembly 33 can accurately measure the height difference between the shaft sleeve and the stator before welding, and provide data support for subsequent welding work.

[0037] Specifically, the first moving assembly 21 comprises a stable first workbench 211 as the base of the entire moving assembly. A screw rod module A 213 driven by a second motor 212 is transversely mounted on the first workbench 211, and the screw rod module A 213 can move accurately in the horizontal direction. A first carrier 214 is slidably arranged on the screw rod module A 213, and a vertical support 215 is arranged on the first carrier 214, which provides support for subsequent vertical movement. A screw rod module B 217 driven by a third motor 216 is arranged on the vertical support 215, and the screw rod module B 217 can move accurately in the vertical direction. A second carrier 218 is slidably arranged on the screw rod module B 217, and the second carrier ultimately carries the laser welder 22, ensuring that the laser welder 22 can accurately reach the specified welding position in three-dimensional space.

[0038] Preferably, in order to enhance the stability and accuracy of the movement of the first carrier 214 in the horizontal direction, a first linear slide rail 219 is transversely arranged on one side of the screw rod module A 213. The first linear slide rail 219 is stably fixed on the first workbench 211 by fasteners or direct welding. The bottom of the first carrier 214 is slidably connected to the first linear slide rail 219 through a sliding block, so that when the second motor 212 drives the screw rod module A 213 to move the first carrier 214, the first linear slide rail 219 can provide additional support and guidance, ensuring smooth and accurate movement.

[0039] In this embodiment, the screw rod module A 213, the screw rod module B 217, and the laser welder 22 described above are all finished parts that can be directly purchased from the market and belong to the prior art, so their structures will not be described in this embodiment.

[0040] In this embodiment, the second moving assembly 31 mainly comprises a second workbench 311 as the support base, and a slide module 313 driven by a fourth motor 312 is mounted on the second workbench 311, which can move accurately in the horizontal direction. A pressing assembly 32 and a detection assembly 33 are respectively arranged on the slide block 3131 of the slide module 313, so that they can move synchronously in the horizontal direction. The slide module 313 is a finished part that can be directly purchased from the market and belongs to the prior art.

[0041] The specific structure of the pressing assembly 32 comprises a pressing cylinder 321 fixed on the slide block 3131, and the piston end of the pressing cylinder 321 is fixedly connected to a first connecting plate 322. A pressing block 323 for applying pressure is arranged on the first connecting plate 322, which is usually made of hard alloy material to ensure sufficient strength and wear resistance.

[0042] The configuration of the detection assembly 33 comprises a stroke cylinder 331 fixed on the slide block 3131, and the piston end of the stroke cylinder 331 is fixedly connected with a second connecting plate 332. A displacement sensor 333 is installed on the second connecting plate 332, which is used to accurately measure the height difference between the shaft sleeve and the stator, and provide key data support for subsequent welding operations.

[0043] In the embodiment, a bracket is arranged on the second workbench 311, which is stably installed on the workbench. A drag chain 34 is arranged on the bracket, one end of the drag chain 34 is fixed on the bracket by means of fasteners or welding, and the other end is fixedly connected with the slide block 3131 of the slide module through a special connecting piece. With the movement of the slide block 3131 on the slide module 313, the drag chain 34 can be flexibly stretched and contracted, so that the cables, gas pipes and the like connected inside the drag chain 34 are prevented from being damaged due to excessive pulling, and the cleanness and safety of the working area are maintained.

[0044] The innovation of the utility model lies in the ingenious application of the pressing and aligning assembly. Before the welding operation starts, the pressing and aligning assembly can first accurately align the shaft sleeve and the stator, and the stator is pressed by the pressing assembly to make it tightly combined with the shaft sleeve and adjusted to a suitable height tolerance range. Then, the laser welder is moved to the predetermined position under the action of the first moving assembly and welded, and the rotating table is stably rotated under the driving of the first motor, so that the 360-degree laser welding operation of the shaft sleeve and the stator is realized, thereby greatly improving the assembly quality of the shaft sleeve and the stator and the stability of the overall structure.

[0045] Obviously, the above-described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the utility model.

[0046] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0047] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and in the above-described drawings are used only for distinguishing between similar objects and do not necessarily have to describe a specific sequential or chronological order. It is to be understood that the data so distinguished can be interchanged, under appropriate circumstances, such that the embodiments of the present application described herein can be practiced in other than the illustrated or described order.

[0048] The preferred embodiments of the present application have been described above with the specific details. Obviously, the present application can be carried out without the specific details. It is to be understood that the above-described embodiments are only used to illustrate the present application, and the present application can be modified and changed in various ways by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rotary welding mechanism of a press welder station, characterized by: The utility model provides a laser welding device, which comprises a rotating clamping assembly, a laser welding assembly and a pressing alignment assembly, the rotating clamping assembly is used for placing products and can drive the products to rotate 360 degrees in the circumferential direction, the laser welding assembly comprises a first moving assembly and a laser welding device, the welding head on the laser welding device is directed to the weld of the products under the driving of the first moving assembly, the pressing alignment assembly comprises a second moving assembly, a pressing assembly and a detection assembly, the pressing assembly can be moved to the top of the products under the driving of the second moving assembly, the pressing assembly is provided with a pressing block moving vertically, the detection assembly can be moved to the top of the weld of the products under the driving of the second moving assembly, and the detection assembly is provided with a displacement sensor for detecting the height difference between the stator and the shaft sleeve.

2. The spin weld mechanism of claim 1, wherein: The rotating clamping assembly comprises a rotating table driven by a first motor, and the rotating table is provided with a three-jaw chuck.

3. The spin weld mechanism of claim 1, wherein: The first moving assembly comprises a first workbench, the first workbench is provided with a screw rod module A driven by a second motor transversely, the screw rod module A is provided with a first carrier slidingly, the first carrier is provided with a vertical support, the vertical support is provided with a screw rod module B driven by a third motor, the screw rod module B is provided with a second carrier slidingly, and the laser welding device is fixedly arranged on the second carrier.

4. The spin weld mechanism of claim 3, wherein: One side of the screw rod module A is provided with a first linear sliding rail, the first carrier is slidingly arranged on the first linear sliding rail through a sliding block, and the first linear sliding rail is directly or indirectly fixed on the first workbench.

5. The spin weld mechanism of claim 1, wherein: The second moving assembly comprises a second workbench, the second workbench is provided with a sliding table module driven by a fourth motor, and the pressing assembly and the detection assembly are arranged on the sliding table sliding blocks of the sliding table module respectively.

6. The spin weld mechanism of claim 5, wherein: The second workbench is provided with a bracket, the bracket is provided with a drag chain, one end of the drag chain is fixed on the bracket, and the other end of the drag chain is fixed on the sliding table sliding blocks of the sliding table module through a connecting piece.

7. The spin weld mechanism of claim 5, wherein: The pressing assembly comprises a pressing cylinder fixed on the sliding table sliding block, the piston of the pressing cylinder is fixedly connected with a first connecting plate, and the first connecting plate is provided with a pressing block.

8. The spin weld mechanism of claim 5, wherein: The detection assembly comprises a stroke cylinder fixed on the sliding table sliding block, the piston of the stroke cylinder is fixedly connected with a second connecting plate, and the second connecting plate is provided with a displacement sensor.

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