Welding tool for intelligent manufacturing mechanical equipment

Abstract

The invention relates to the technical field of welding positioning equipment, in particular to a welding tool for intelligent manufacturing mechanical equipment, and aims to solve the problem that an angle cannot be adjusted after an existing welding tool is centered. The tool comprises a spherical outer positioning sleeve and a spherical inner sleeve, a spherical mounting cavity is formed in the spherical outer positioning sleeve, a plurality of mounting holes are formed in the surface of the spherical outer positioning sleeve, and elastic positioning columns are arranged in the spherical outer positioning sleeve; the spherical inner sleeve is provided with a pressure fluid cavity and a corresponding pressure circulation hole, and the outer side of the spherical inner sleeve is wrapped with a closed elastic film. Pressure fluid is injected into the pressure fluid cavity, the elastic film is driven to deform, and the elastic positioning column is pushed to stretch out to achieve automatic centering and positioning of the workpiece. Any angle adjustment is allowed before pressurization, the angle is locked through deformation of the elastic film along with pressure fluid after adjustment is completed, and accuracy and stability of the position of a workpiece in the welding process are guaranteed. The design not only improves the welding efficiency and precision, but also simplifies the welding process of workpieces with complex shapes, and has the advantages of high flexibility, simplicity and convenience in operation, convenience in maintenance and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of welding positioning equipment, and in particular to a welding tool for intelligent manufacturing mechanical equipment. Background Art

[0002] The information disclosed in the background of the invention is only intended to enhance the understanding of the overall background of the invention and should not be necessarily regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

[0003] In the field of modern intelligent manufacturing, welding process, as a key step in connecting different materials, plays a vital role in improving production efficiency and product quality. With the advancement of industrial technology, the requirements for welding tooling are also increasing, especially in terms of flexibility, precision and automation.

[0004] However, once the existing welding tooling has completed the centering operation, it is usually impossible to adjust the angle. This means that in the actual production process, if the welding angle or position needs to be changed, the workpiece needs to be repositioned, which not only increases the complexity of the work but also reduces production efficiency. In addition, for workpieces with complex shapes or that need to be welded at specific angles, traditional tooling is difficult to meet their needs, and often requires the customization of special fixtures or additional adjustment measures, further limiting the flexibility and efficiency of production.

[0005] In view of the limitations of traditional welding tools, there are some tentative solutions in the prior art, such as using a multi-axis robot combined with a precision control system to achieve flexible adjustment of the welding angle. However, these methods generally have problems such as high cost, complex system, and difficult maintenance.

[0006] Therefore, it is urgent to develop an intelligent welding tool that can adaptively adjust the welding angle and has efficient and stable centering and positioning functions. Summary of the invention

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a welding tool for intelligent manufacturing mechanical equipment, aiming to solve the problem that the angle of the existing welding tool cannot be adjusted after centering.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A welding tool for intelligent manufacturing mechanical equipment, comprising a spherical positioning outer sleeve, a spherical mounting cavity is arranged in the spherical positioning outer sleeve, a plurality of mounting holes are opened on the surface of the spherical positioning outer sleeve, and corresponding elastic positioning columns are installed in the mounting holes;

[0010] The lower end of the installation cavity is provided with an installation opening, and a relatively rotatable spherical inner sleeve is installed in the installation cavity through the installation opening;

[0011] A pressure fluid cavity is arranged in the spherical inner sleeve, and a plurality of pressure flow holes corresponding to the mounting holes are opened on the surface of the spherical inner sleeve;

[0012] The outer surface of the spherical inner sleeve is wrapped with a closed elastic film, and the elastic film is partially deformed at the mounting hole under the action of the pressure fluid, and the deformed part extends into the mounting hole, which is used to push the elastic positioning column out of the mounting hole to realize the positioning of the workpiece sleeved on the outer side of the spherical positioning outer sleeve;

[0013] The lower end of the spherical inner sleeve is provided with a mounting column for mounting and fixing, and the mounting column is provided with an inlet channel and an outlet channel communicating with the hydraulic ball cavity.

[0014] Preferably, the elastic positioning column is provided with a guide slide column adapted to be slidably installed in the mounting hole, a fixed limit plate is provided at the outer end of the mounting hole, and a spring for resetting is provided between the limit plate and the guide slide column.

[0015] Preferably, the outer end of the elastic positioning column is provided with a positioning end head for increasing friction, and the mounting hole is provided with a countersunk hole adapted to mount the positioning end head and the limiting plate.

[0016] Preferably, the pressure flow holes are arranged to expand from inside to outside.

[0017] Preferably, the mounting opening is provided with an expansion opening for adapting the mounting column to rotate with the spherical inner sleeve.

[0018] Preferably, the elastic membrane is provided with a sleeve opening, the spherical inner sleeve is provided with a press-fitting groove, the sleeve opening is fitted into the press-fitting groove, and a press-fitting ring is fixedly installed in the press-fitting groove.

[0019] Preferably, the press-fitting ring is provided with a driving groove for facilitating driving rotation.

[0020] Preferably, an adjustment base is provided at the lower end of the mounting column for installation, fixation and adjustment of positioning height.

[0021] Preferably, the adjustment base is threadedly connected to the mounting column, a sealing groove is provided at the lower end of the adjustment base, and a sealing gasket is installed in the sealing groove.

[0022] Preferably, the mounting cavity is provided with a flow expansion groove at the inner end of the mounting hole, which is used to position the deformation of the elastic membrane and to provide a spatial channel for the hydraulic fluid in the hydraulic circulation hole.

[0023] The present invention has at least the following beneficial effects:

[0024] The present invention has strong adaptive adjustment performance. By adopting the design of a spherical outer positioning sleeve and a spherical inner sleeve, combined with the elastic film deformation mechanism driven by pressure fluid, the tooling can achieve adjustment of any angle during the workpiece welding process, greatly improving the flexibility and adaptability of the welding equipment, especially for workpieces with complex shapes or that need to be welded at a specific angle, greatly simplifying the operation process. Compared with the traditional method that requires repositioning the workpiece to change the welding angle, the present invention allows the positioning of the new angle to be achieved by adjusting the pressure of the pressure fluid without repositioning the workpiece, thereby adjusting the welding angle, reducing the complexity of the work and the time cost, and thus improving production efficiency.

[0025] Compared with the existing multi-axis robot arm combined with a precision control system solution, the present invention provides a solution with lower cost, simpler system and easier maintenance, which is helpful to promote the application of intelligent manufacturing welding technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the overall split structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the internal coordination structure of the present invention;

[0029] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0031] The reference numerals are as follows:

[0032] 100, spherical positioning sleeve; 110, elastic positioning column; 111, guide slide column; 112, spring; 120, expansion port; 130, mounting hole; 131, limit plate; 132, countersunk hole; 140, mounting cavity; 141, expansion groove; 200, mounting column; 210, spherical inner sleeve; 211, pressure flow hole; 212, press-fit groove; 213, press-fit ring; 2131, drive groove; 220, pressure fluid cavity; 230, inlet channel; 240, outlet channel; 300, elastic membrane; 310, set port; 400, adjustment base; 410, fixing hole; 411, sealing groove; 420, sealing gasket. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0034] Figures 1 to 5 A welding tool for intelligent manufacturing mechanical equipment is presented, which is suitable for welding tool positioning of workpieces with positioning holes or cylindrical workpieces, including a spherical positioning sleeve 100, a spherical mounting cavity 140 is provided in the spherical positioning sleeve 100, a plurality of mounting holes 130 are opened on the surface of the spherical positioning sleeve 100, and corresponding elastic positioning columns 110 are installed in the mounting holes 130;

[0035] The lower end of the installation cavity 140 is provided with an installation opening, and the installation cavity 140 is provided with a relatively rotatable spherical inner sleeve 210 through the installation opening;

[0036] The spherical inner sleeve 210 has a pressure fluid chamber 220, and the surface of the spherical inner sleeve 210 has a plurality of pressure flow holes 211 corresponding to the mounting holes 130;

[0037] A closed elastic membrane 300 is installed on the outer side of the surface of the spherical inner sleeve 210. The elastic membrane 300 is partially deformed at the mounting hole 130 under the action of a pressure fluid (which may be compressed gas or hydraulic oil), and the deformed portion extends into the mounting hole 130, so as to push the elastic positioning column 110 out of the mounting hole 130 to realize positioning of the workpiece sleeved on the outer side of the spherical positioning outer sleeve 100.

[0038] The lower end of the spherical inner sleeve 210 is provided with a mounting column 200 for mounting and fixing, and the mounting column 200 is provided with an inlet channel 230 and an outlet channel 240 which are communicated with the hydraulic ball cavity.

[0039] Among them, the specific structure of the elastic positioning column 110 can be as follows: the elastic positioning column 110 is provided with a guide slide column 111 adapted to be slidably installed in the mounting hole 130, a fixed limit plate 131 is provided at the outer end of the mounting hole 130, and a spring 112 for resetting is provided between the limit plate 131 and the guide slide column 111.

[0040] In order to improve the stability of positioning, a positioning end is provided at the outer end of the elastic positioning column 110 for increasing friction, on the one hand by increasing the area, and on the other hand by setting a rough contact surface, such as fixing a friction plate made of rubber material, or setting friction lines on the contact surface between the positioning end and the workpiece positioning hole or the inner wall of the cylindrical workpiece.

[0041] In order to provide installation and accommodation space for the positioning end and the limit plate 131, the mounting hole 130 is provided with a countersunk hole 132 adapted for installing the positioning end and the limit plate 131, so that when the welding positioning tool is not started (or reset), there is no protruding structure on the surface of the spherical positioning sleeve 100, thereby improving the external flatness and installation performance of the tooling and reducing unnecessary space waste.

[0042] In order to prevent the installation port from interfering with the rotation of the spherical positioning sleeve 100 with the workpiece, the installation port is provided with an expansion port 120 for adapting the installation column 200 to rotate with the spherical inner sleeve 210, thereby increasing the free space for universal rotation as much as possible, thereby increasing the universal adjustment range of the workpiece during the welding process.

[0043] The elastic membrane 300 is a consumable part due to frequent elastic deformation and mechanical friction. On the one hand, its material can be selected from rubber (or suitable plastic and its polymer) with good elasticity, toughness and wear resistance. On the other hand, consumable parts need to be replaced regularly. Therefore, special attention should be paid to how to achieve detachability for easy installation and replacement, and at the same time, achieve good sealing installation.

[0044] The installation method of the elastic membrane 300 in the present application is as follows: the elastic membrane 300 is provided with a sleeve opening 310 at the bottom, the spherical inner sleeve 210 is provided with a press-fitting groove 212, the sleeve opening 310 is sleeved in the press-fitting groove 212, a press-fitting ring 213 is installed and fixed in the press-fitting groove 212, the press-fitting ring 213 can be installed and fixed by threaded connection, or by a combination of clamping and threaded fixing parts, the sleeve opening 310 should have higher flexibility and strength, so as to facilitate a more stable installation. The following is basic common sense and is easy to implement, so no further elaboration is made here. In order to facilitate driving the press-fitting ring 213 to rotate, thereby facilitating the stable installation of the elastic membrane 300, a driving groove 2131 is provided on the press-fitting ring 213, such as a clamping groove for cooperating with a wrench.

[0045] An adjustment base 400 is provided at the lower end of the mounting column 200 for installing and fixing the overall tooling. The adjustment base 400 is provided with a fixing hole 410 adapted to the mounting column 200, which is a threaded hole in the present application. In order to improve the adjustability and adjust the positioning height or depth, the adjustment base 400 can be optionally connected and fixed to the mounting column 200 in a detachable and sealed manner, which can be achieved by replacing the adjustment base 400 of different heights. The adjustment base 400 is provided with a flange for fixing to achieve stable installation and fixation.

[0046] The sealing connection method adopted in this embodiment is as follows: the adjusting base 400 is threadedly connected to the mounting column 200, a sealing groove 411 is provided at the lower end of the adjusting base 400, a sealing gasket 420 is installed in the sealing groove 411, and a sealing connection is achieved with the pressure flow pipeline through the sealing gasket 420.

[0047] When the spherical positioning outer sleeve 100 and the spherical inner sleeve 210 rotate relative to each other, the pressure flow channel will be misaligned. At this time, the pressure flow hole 211 is aligned with the inner wall of the mounting cavity 140, and the flow of the pressure fluid into the mounting hole 130 can only rely on the fitting clearance. Although the elastic membrane 300 can still undergo local deformation in the mounting hole 130 to push the elastic positioning column 110 out, this will cause the elastic membrane 300 to bear greater pressure, and at the same time, the pressure fluid channel will also be subjected to greater internal pressure.

[0048] Therefore, in order to overcome the channel misalignment problem caused by the relative rotation between the spherical positioning outer sleeve 100 and the spherical inner sleeve 210, the pressure flow holes 211 are all expanded from the inside to the outside, which can reserve a larger space for the flow of pressure fluid, making the positioning of the workpiece more stable when adjusting the angle during welding.

[0049] In order to further improve the stability of the pressure fluid channel, the mounting cavity 140 is provided with an expansion groove 141 at the inner end of the mounting hole 130, so as to provide a larger spatial channel for the pressure fluid in the hydraulic circulation hole; at the same time, the diameter of the expansion groove 141 is much larger than the mounting hole 130, and can also be used to locally position the deformation of the elastic membrane 300, first positioning the deformation of the elastic membrane 300 in the expansion groove 141, and then entering the mounting hole 130 through the expansion groove 141; furthermore, after the elastic membrane 300 is locally deformed, a limiting matrix is ​​formed in the expansion groove 141, which can provide a greater limiting force, so that the positioning and locking after the angle adjustment is more stable.

[0050] In order to better understand the working process and principle of the present application, the following content is supplemented: Since the fluid in the pressure fluid chamber 220 flows freely at night, when a pressure fluid of a specific pressure is provided, the action force and reaction force exerted on each elastic positioning column 110 are equal, thereby achieving adaptive positioning that changes with the positioning mating surface.

[0051] When in use, the positioning hole of the workpiece or the cylindrical workpiece is put on the tooling, and before starting the pressurization, since the spherical outer positioning sleeve and the spherical inner sleeve 210 have the function of universal adjustment, the angle can be adjusted first to achieve adjustable welding angle.

[0052] After adjusting the required angle, start the pressure fluid pressurization (which can be achieved by a power device such as a booster pump or a hydraulic motor). Under the action of the pressure fluid, the elastic membrane 300 is locally deformed at the expansion groove 141 and the mounting hole 130, extends into the mounting hole 130, and pushes the elastic positioning column 110 to extend outward, thereby positioning the workpiece and performing subsequent welding.

[0053] At the same time, because the elastic membrane 300 extends into the expansion groove 141 and the mounting hole 130 under the action of the pressure fluid, the spherical outer positioning sleeve and the spherical inner sleeve 210 are relatively fixed and can no longer rotate relative to each other, thereby locking the workpiece welding angle.

[0054] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0055] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0056] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding tool for intelligent manufacturing mechanical equipment, characterized in that: It comprises a spherical positioning sleeve, wherein a spherical mounting cavity is arranged inside the spherical positioning sleeve, a plurality of mounting holes are opened on the surface of the spherical positioning sleeve, and corresponding elastic positioning columns are installed in the mounting holes; The lower end of the installation cavity is provided with an installation opening, and a relatively rotatable spherical inner sleeve is installed in the installation cavity through the installation opening; A pressure fluid cavity is arranged in the spherical inner sleeve, and a plurality of pressure flow holes corresponding to the mounting holes are opened on the surface of the spherical inner sleeve; The outer surface of the spherical inner sleeve is wrapped with a closed elastic film, and the elastic film is partially deformed at the mounting hole under the action of the pressure fluid, and the deformed part extends into the mounting hole, which is used to push the elastic positioning column out of the mounting hole to realize the positioning of the workpiece sleeved on the outer side of the spherical positioning outer sleeve; The lower end of the spherical inner sleeve is provided with a mounting column for mounting and fixing, and the mounting column is provided with an inlet channel and an outlet channel communicating with the hydraulic ball cavity.

2. The intelligent manufacturing mechanical equipment welding tool as claimed in claim 1, characterized in that: The elastic positioning column is provided with a guide sliding column adapted to be slidably installed in the installation hole, a fixed limiting plate is provided at the outer end of the installation hole, and a spring for resetting is provided between the limiting plate and the guide sliding column.

3. The intelligent manufacturing mechanical equipment welding tooling as claimed in claim 2, characterized in that: The outer end of the elastic positioning column is provided with a positioning end head for increasing friction, and the mounting hole is provided with a countersunk hole adapted to mount the positioning end head and the limiting plate.

4. The intelligent manufacturing mechanical equipment welding tool as claimed in claim 1, characterized in that: The pressure flow holes are all arranged to expand from the inside to the outside.

5. The intelligent manufacturing mechanical equipment welding tool as claimed in claim 1, characterized in that: The installation opening is provided with an expansion opening for adapting the installation column to rotate with the spherical inner sleeve.

6. The intelligent manufacturing mechanical equipment welding tool as claimed in claim 1, characterized in that: The elastic membrane is provided with a sleeve opening, the spherical inner sleeve is provided with a press-fitting groove, the sleeve opening is fitted in the press-fitting groove, and a press-fitting ring is fixedly installed in the press-fitting groove.

7. The intelligent manufacturing mechanical equipment welding tool as claimed in claim 6, characterized in that: The press-fitting ring is provided with a driving groove for facilitating driving rotation.

8. The intelligent manufacturing mechanical equipment welding tool as claimed in claim 1, characterized in that: An adjustment base is provided at the lower end of the installation column for installation, fixing and adjusting the positioning height.

9. The intelligent manufacturing mechanical equipment welding tool as claimed in claim 8, characterized in that: The adjusting base is threadedly connected to the mounting column, a sealing groove is provided at the lower end of the adjusting base, and a sealing gasket is installed in the sealing groove.

10. The intelligent manufacturing mechanical equipment welding tool as claimed in any one of claims 1 to 9, characterized in that: The mounting cavity is provided with a flow expansion groove at the inner end of the mounting hole, which is used to position the deformation of the elastic membrane and to provide a spatial channel for the hydraulic fluid in the hydraulic circulation hole.

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