Temperature sensing cylinder laser welding machine

Abstract

A temperature sensing cylinder laser welding machine relates to the technical field of temperature controller production and comprises a clamping mechanism and a pre-connection assembly used for clamping or loosening a temperature sensing cylinder and a capillary tube, and the clamping mechanism is obliquely arranged so that the pre-connection assembly can be in an inclined posture when clamped; the welding mechanism is used for carrying out laser welding on the clamped pre-connected assembly; and the rack is used for mounting the clamping mechanism and the welding mechanism. By means of the automatic clamping mechanism and the laser welding mechanism, the efficiency of the welding process is remarkably improved, the manpower demand and the time consumption are reduced, the manual labor of workers and the operation difficulty are reduced, and the workers can complete the welding task more easily. Moreover, laser welding can be well achieved through automatic equipment, compared with a conventional manual welding mode, the laser welding technology can achieve the more uniform and finer welding effect through high precision and high energy density, and therefore the quality and reliability of a welded joint are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature controller production, in particular to a temperature sensing tube laser welding machine. Background Art

[0002] Liquid expansion thermostat is a device that uses the principle of liquid expansion to control temperature. It is widely used in industrial and civil fields. Its working principle is that when the temperature rises, the volume of the liquid expands, pushing the mechanical parts in the thermostat, thereby realizing automatic temperature control. The temperature sensing cylinder is one of the key components in the liquid expansion thermostat. It is usually made of metal and filled with temperature sensing liquid. One end of the temperature sensing cylinder is connected to the capillary, which is responsible for transporting the temperature sensing liquid to other parts of the thermostat.

[0003] In the existing manufacturing process of liquid expansion thermostats, the connection between the temperature sensing tube and the capillary tube usually adopts the traditional pure manual welding technology. The main operation method is to first insert the capillary tube into the temperature sensing tube to form a pre-connection, and then manually use a welding gun to weld. This welding method has the following major defects: workers need to manually operate the welding equipment and maintain the same posture for a long time, which not only increases the labor intensity, but also may cause worker fatigue and operating errors, and seriously reduce production efficiency. Manual welding is easily affected by the operator's skill level and the working status of the day, resulting in uneven welding quality. In the traditional welding process, a large amount of welding waste may be generated, which not only increases the material cost, but also imposes a certain burden on the environment. Utility Model Content

[0004] The utility model aims to provide a temperature-sensing tube laser welding machine to improve production efficiency and reduce labor intensity.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solution: a temperature-sensing tube laser welding machine, comprising:

[0006] A clamping mechanism, used for clamping or loosening the pre-connection assembly of the temperature-sensing cylinder and the capillary tube, wherein the clamping mechanism is arranged to be inclined so that the pre-connection assembly is in an inclined posture when being clamped;

[0007] A welding mechanism, used for laser welding the clamped pre-connected components;

[0008] A frame is used to install the clamping mechanism and the welding mechanism.

[0009] Preferably, the clamping mechanism comprises a base, a pneumatic chuck mounted on the base and used to clamp the temperature-sensitive tube, and a support member mounted on the base and used to support the capillary tube.

[0010] More preferably, a positioning groove for placing the capillary is provided at the top end of the support member.

[0011] More preferably, the base is equipped with a fixed block and a slide rail is provided on the fixed block, the support member is slidably connected to the slide rail, the base is equipped with a sub-cylinder, one end of the sub-cylinder telescopic rod is connected to the support member for pushing the support member so that the positioning groove is against the capillary.

[0012] More preferably, a guide notch is provided at the top end of the support member, and the bottom end of the guide notch is connected to the positioning groove.

[0013] More preferably, the inclination angle of the base is adjustable.

[0014] More preferably, the welding mechanism includes a laser welder, a servo motor, a CCD camera and a controller, wherein the CCD camera is used to capture an image of the weld, and the controller is used to analyze the image and send instructions to the servo motor so that the servo motor adjusts the laser welder to achieve automatic tracking weld.

[0015] More preferably, the frame is provided with a workbench, the clamping mechanism is installed on the workbench, and a finished material frame for preventing the workpiece from being welded is provided on one side of the workbench.

[0016] Compared with the prior art, the utility model significantly improves the efficiency of the welding process through the automated clamping mechanism and laser welding mechanism, reduces the manpower requirements and time consumption, and reduces the physical labor and operation difficulty of workers, so that workers can complete the welding task more easily. In addition, laser welding can be better achieved through automated equipment. Compared with conventional manual welding, laser welding technology, with its high precision and high energy density, can achieve a more uniform and finer welding effect, thereby improving the quality and reliability of the welded joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the clamping mechanism in the embodiment;

[0019] Figure 3 It is a schematic diagram of a partial front side view of the clamping mechanism in the embodiment.

[0020] In the figure:

[0021] 1——temperature sensing tube 2——capillary tube 3——rack

[0022] 4——Base 5——Pneumatic chuck 6——Support

[0023] 7——Location groove 8——Auxiliary cylinder 9——Guide notch

[0024] 10——Laser welding machine 11——Workbench 12——Finished product frame. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0026] It should be noted in advance that, in the present utility model, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, in the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature can include the first and second features directly contacting, and can also include the first and second features not being in direct contact but contacting through another feature between them.

[0027] like Figures 1 to 3 As shown, the temperature-sensing barrel laser welding machine includes:

[0028] The clamping mechanism is used to clamp or loosen the pre-connection component of the temperature-sensing tube 1 and the capillary tube 2. The clamping mechanism is tilted so that the pre-connection component is in a tilted posture when clamped. The clamping mechanism includes a base 4, a pneumatic chuck 5 installed on the base 4 and used to clamp the temperature-sensing tube 1, and a support 6 installed on the base 4 and used to support the capillary tube 2. The pneumatic chuck 5 can be selected as a conventional structure, and the principle is mainly to drive the opening and closing of the chuck by a cylinder; the welding mechanism is used to laser weld the clamped pre-connection component; the frame 3 is used to install the clamping mechanism and the welding mechanism, the clamping mechanism is detachably connected to the frame 3, and the welding mechanism is installed on the frame through a fixed arm and extends forward so that the laser welding head is located above the clamping mechanism.

[0029] In the above structure, the top of the support member 6 is provided with a positioning groove 7 for placing the capillary 2. The base 4 is provided with a fixed block and the fixed block is provided with a slide rail, the support member 6 is slidably connected with the slide rail, the base 4 is provided with a sub-cylinder 8, one end of the telescopic rod of the sub-cylinder 8 is connected to the support member 6 to push the support member 6 so that the positioning groove 7 is against the capillary 2. In this way, when the pneumatic chuck 5 clamps the temperature-sensing tube 1, the support member 6 will also move upward so that the capillary 2 is stuck in the positioning groove 7, forming a reliable clamping and fixing effect. In order to facilitate the workers to load, the top of the support member 6 is provided with a guide notch 9, and the bottom end of the guide notch 9 is connected to the positioning groove 7, so that when the workers put the temperature-sensing tube 1 into the pneumatic chuck 5, the capillary 2 can be quickly and accurately placed in the guide notch 9, and the guide notch 9 has an inclined guide inner wall surface, so that when the support member 6 moves upward, the capillary 2 can easily enter the positioning groove 7 under the action of the guide.

[0030] In addition, the support member 6 can be configured to be detachably connected to the telescopic rod of the auxiliary cylinder 8, so that the support member 6 can be easily replaced, thereby adjusting the size of the positioning groove 7 to use capillaries 2 of different specifications.

[0031] In order to improve the applicability of the temperature-sensing tube laser welding machine, the inclination angle of the base 4 in this embodiment is adjustable. Since the temperature-sensing tube may have different shapes and sizes, the inclination angle enables the welding machine to adapt to temperature-sensing tubes of various specifications, increasing the versatility and flexibility of the equipment. Moreover, different welding tasks may require different welding angles to ensure the quality and efficiency of welding. Moreover, through the inclination angle, the center of the pneumatic chuck 5 is easier to be observed by the operator, so as to facilitate the alignment and insertion of the temperature-sensing tube. As for the means for adjusting the inclination angle of the base 4, common technical means in the prior art can be adopted, such as providing a support under the base 4, so that the base is hinged to the support, and the base can be adjusted by flipping on the support. After adjusting the angle, it can be locked by a locking mechanism, such as inserting a locking pin to prevent rotation after flipping to the desired angle. There is no technical difficulty for those skilled in the art to adjust and lock the inclination angle of the base 4.

[0032] In this embodiment, the welding mechanism includes a laser welder 10, a servo motor, a CCD camera and a controller. The CCD camera is used to capture the reflected light of the laser on the weld to form an image of the weld. The controller uses image processing software to analyze the image, identify the position, shape and size of the weld, and then send instructions to the servo motor so that the servo motor adjusts the laser welder 10 to achieve automatic tracking weld welding. Those skilled in the art should know that automatic tracking weld welding technology is an existing technology. It is considered to be an advanced technology in the field of automated welding, especially in the case of high precision and adaptability. In the automated production lines of industries such as automobiles, aerospace and heavy machinery, automatic tracking technology can improve production efficiency and welding quality. This technology can achieve automatic tracking and adjustment of complex or irregular welds and ensure welding quality by combining laser sensing, machine vision, image processing and servo motor control. Therefore, the control principle and specific control program for realizing this function can be obtained from the prior art, and will not be repeated in this embodiment. In general, this embodiment realizes accurate tracking and real-time adjustment of the weld during the welding process through automatic tracking weld welding technology, which can solve the problem of uneven welding surface, thereby improving welding quality and production efficiency and reducing material waste.

[0033] In addition, the frame 3 is provided with a workbench 11, the clamping mechanism is installed on the workbench 11, and a finished material frame 12 is provided on one side of the workbench 11 for preventing the workpieces after welding, which facilitates the collection and subsequent processing of the workpieces after welding and improves the smoothness of the production process.

[0034] The working process of the temperature-sensing tube laser welding machine provided in the above embodiment is as follows: first, insert the capillary into the temperature-sensing tube to form a pre-connection assembly, place the pre-connection assembly on the base 4 of the clamping mechanism, insert the temperature-sensing tube 1 into the pneumatic chuck 5, operate the pneumatic chuck 5 to clamp the temperature-sensing tube 1 in an appropriate position, and at the same time, push the support 6 through the telescopic rod of the auxiliary cylinder 8 to make the positioning groove 7 against the capillary to ensure the stability of the pre-connection assembly. Start the laser welder 10 to automatically weld the joint between the temperature-sensing tube 1 and the capillary 2. The laser welder 10 automatically stops after welding. At this time, operate the pneumatic chuck 5 and the support 6 to loosen the temperature-sensing tube 1 and the capillary 2, and then take out the welded pre-connection assembly, check the welded part to ensure that there are no welding defects, such as cracks, pores or incomplete welding, and then put the welded and qualified temperature-sensing tube and capillary assembly into the finished material frame to prepare the next set of pre-connection assemblies, and repeat the above steps for the next round of welding.

[0035] Through the above workflow, the operator can efficiently and easily complete the welding task of the temperature sensing tube and the capillary tube, while ensuring the welding quality and production efficiency. In addition, the structural design of the utility model is easy to integrate with the automated production line to achieve fully automated production and further improve production efficiency.

[0036] In order to make it easier for ordinary technicians in this field to understand the improvements of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and the above-mentioned embodiments are better implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. Temperature-sensing laser welding machine, characterized in that: include: A clamping mechanism, used for clamping or loosening a pre-connection assembly of a temperature-sensing cylinder (1) and a capillary tube (2), the clamping mechanism being arranged at an angle so that the pre-connection assembly is in an inclined posture when clamped; A welding mechanism, used for laser welding the clamped pre-connected components; The frame (3) is used to install the clamping mechanism and the welding mechanism.

2. The temperature-sensing tube laser welding machine according to claim 1 is characterized in that: The clamping mechanism comprises a base (4), a pneumatic clamp (5) mounted on the base (4) and used to clamp the temperature-sensing tube (1), and a support member (6) mounted on the base (4) and used to support the capillary tube (2).

3. The temperature-sensing tube laser welding machine according to claim 2 is characterized in that: The top end of the support member (6) is provided with a positioning groove (7) for receiving the capillary tube (2).

4. The temperature-sensing tube laser welding machine according to claim 3 is characterized in that: The base (4) is mounted with a fixed block and a slide rail is arranged on the fixed block, the support member (6) is slidably connected to the slide rail, the base (4) is mounted with a secondary cylinder (8), one end of a telescopic rod of the secondary cylinder (8) is connected to the support member (6) for pushing the support member (6) so that the positioning groove (7) abuts against the capillary (2).

5. The temperature-sensing tube laser welding machine according to claim 4 is characterized in that: A guide notch (9) is provided at the top end of the support member (6), and a bottom end of the guide notch (9) is connected to the positioning groove (7).

6. The temperature-sensing tube laser welding machine according to claim 2 is characterized in that: The inclination angle of the base (4) is adjustable.

7. The temperature-sensing tube laser welding machine according to claim 1 is characterized in that: The welding mechanism comprises a laser welder (10), a servo motor, a CCD camera and a controller, wherein the CCD camera is used to capture an image of a weld, and the controller is used to analyze the image and send instructions to the servo motor so that the servo motor adjusts the laser welder (10) to achieve automatic tracking of the weld.

8. The temperature-sensing tube laser welding machine according to any one of claims 1 to 7, characterized in that: The frame (3) is provided with a workbench (11), the clamping mechanism is installed on the workbench (11), and one side of the workbench (11) is provided with a finished material frame (12) for preventing workpieces from being welded.

Images