Roller weld joint device for instruments and meters

Abstract

The invention discloses a roller welding device for instruments and meters, which comprises a base, a workbench arranged on the base, a clamping device arranged on the workbench and used for clamping a roller, a transmission device arranged on the workbench and used for driving the roller to rotate, and a welding device arranged on the workbench and used for welding the roller. A baffle is arranged on the portion, located on the side of the welding device, of the workbench, a top plate is arranged on the baffle, a foldable cover plate is arranged on the workbench, the cover plate is connected with the top plate to form a welding protection bin after being unfolded, a fixing frame corresponding to the cover plate is arranged on the side of the base, and the cover plate is fixed through the fixing frame after being folded. The automatic welding seam rotating device can achieve automatic welding seam rotating operation on the roller, eliminate potential safety hazards caused by manual welding seams, improve the uniformity of the welding seams, avoid cracks and improve the product quality of instruments and meters.

Description

Technical Field

[0001] The invention relates to the field of instrument and meter manufacturing, and in particular to a roller welding device for instruments and meters. Background Art

[0002] Instruments and meters have a wide range of applications, covering industry, agriculture, transportation, science and technology, environmental protection, national defense, culture, education, health, people's lives and other aspects. They bear the tasks of gatekeepers and guides in the operation of all walks of life in the national economic construction. Due to its special status and great role, it has a huge multiplying and driving effect on the national economy, and has a good market demand and huge development potential. The market demand objects and coverage of the instrumentation industry can be described from the following aspects: 1. In the context of human society entering the knowledge economy era and the rapid development of information technology, instruments and meters and their measurement and control technologies have been increasingly widely used, providing a good opportunity for the rapid development of the instrumentation industry. Instruments and meters are the source and component of the information industry and an important foundation of information technology. 2. Instruments and meters are widely used in the measurement and control of process flows of equipment and transformation of traditional industries. They are an important part of modern large-scale key complete sets of equipment and an important link for informatization to drive industrialization. According to relevant data, with the improvement of equipment level, the proportion of instruments and meters in the total investment in engineering equipment has reached about 18%; in the investment in modern Baosteel technology equipment, 1 / 3 of the funds are used to purchase instruments and automatic control systems. 3. Instruments and meters have become an important part of modern national defense construction technology and equipment. One-third of the fixed assets of China's aerospace industry are instruments and meters and computers; the instrument expenditure of launch vehicles accounts for about one-half of the total research and development funds; high-precision guidance and control of missiles, aerospace precision latitude measurement and infrared imaging, special high-temperature experimental equipment, etc. are all key products in national defense equipment. 4. Instruments and meters are widely used as important implementation means and guarantee industries in the process of exploring the sustainable development of human society, resisting natural disasters, governing the country according to law, and implementing relevant laws (quality, commodity inspection, measurement, environmental protection, etc.). 5. High-level scientific research and the rapid development of high-tech industries have increased the demand for instruments and meters. Instruments and meters are playing a very important role in the process of implementing science and education, knowledge innovation and technological innovation. Various high-level scientific experiments are inseparable from scientific instruments, and the progress of modern science is increasingly dependent on the development of cutting-edge instruments. The development of many fields such as modern biology, medicine, ecological environment protection, new materials (nanomaterials, etc.), modern agriculture, etc. is also based on the development of cutting-edge precision instrument technology. When welding existing large-scale instrument rollers, the welding operation is usually performed manually around the roller, which wastes manpower in the welding process and even brings certain safety hazards. In addition, due to the poor uniformity of the weld after welding, cracks will appear after a period of use, and weld repair is required, which greatly affects the product quality and reduces the accuracy of the instrument. Summary of the invention

[0003] In order to solve one or some technical problems existing in the prior art, the purpose of this application is to provide a roller welding device for instruments and meters, which can realize the automated rotation welding operation of the roller, eliminate the safety hazards caused by manual welding, and at the same time improve the uniformity of the weld, avoid cracks, and improve the product quality of instruments and meters.

[0004] In order to solve the above-mentioned existing technical problems, the purpose of the present application is achieved by adopting the following technical scheme: a roller welding device for instruments and meters, comprising a base, a workbench arranged on the base, a clamping device arranged on the workbench for clamping the roller, a transmission device arranged on the workbench for driving the roller to rotate, and a welding device arranged on the workbench for welding the roller, a baffle is provided on the side of the welding device on the workbench, a top plate is provided on the baffle, a foldable cover plate is provided on the workbench, and the cover plate is connected to the top plate when it is opened to form a welding protection chamber, and a fixing frame corresponding to the cover plate is provided on the side of the base, and the cover plate is fixed by the fixing frame after being folded.

[0005] Preferably, the clamping device includes a first clamping frame and a second clamping frame arranged side by side on the workbench, a support rod arranged at the inner end of the first clamping frame, and a clamping upper frame connected to the support rod and corresponding to the first clamping frame. The clamping upper frame is connected to the outer end of the first clamping frame through a clamping adjusting screw. The first clamping frame is provided with a driving wheel connected to the top of the roller, and the first clamping frame, the second clamping frame and the clamping upper frame are all provided with a plurality of driven wheels connected to the top of the roller.

[0006] Preferably, the first clamping base frame includes two parallel bottom connecting plates with openings upward, bottom connecting bolts connecting the two bottom connecting plates at both ends of the bottom connecting plates, a driven wheel is provided on the first clamping base frame, and the driving wheel and the driven wheel are symmetrically arranged between the two bottom connecting plates; the clamping upper frame includes two parallel upper connecting plates with openings downward, upper connecting bolts connecting the two upper connecting plates at both ends and the center of the upper connecting plates, and two driven wheels are provided on the clamping upper frame, and the two driven wheels are symmetrically arranged between the two upper connecting plates; the driving wheel and the driven wheel on the first clamping base frame are symmetrically arranged with the two driven wheels on the clamping upper frame.

[0007] Preferably, a bottom connecting column is provided at the outer end of the first clamping base frame, an upper connecting column is provided at the outer end of the clamping upper frame, the clamping adjustment screw passes through the upper connecting column and is spirally connected to the bottom connecting column, a rotating handle is provided on the top of the clamping adjustment screw, and a spring is provided on the clamping adjustment screw between the rotating handle and the upper connecting column.

[0008] Preferably, the transmission device includes a first transmission wheel driven by a motor and arranged on the workbench, a second transmission wheel driven by the first transmission wheel through a belt, a transmission rod arranged on the second transmission wheel, a third transmission wheel arranged at the end of the transmission rod, and a fourth transmission wheel driven by the third transmission wheel through a belt, and the fourth transmission wheel is driven by a belt and a driving wheel.

[0009] Preferably, the welding device includes an adjusting frame, an L-shaped connecting frame arranged at the front end of the adjusting frame, and a welding head arranged at the end of the L-shaped connecting frame. The L-shaped connecting frame is slidably connected to the adjusting frame, and the adjusting frame is provided with a positioning knob for positioning the L-shaped connecting frame.

[0010] Preferably, the adjustment frame includes a transverse frame arranged on the workbench, a transverse slider slidingly connected to the transverse frame, a vertical frame arranged on the transverse slider, a vertical slider slidingly connected to the vertical frame, and an extension frame connected to the vertical slider, the L-shaped connecting frame is slidably connected to the extension frame, and the positioning knob is arranged on the extension frame to position the L-shaped connecting frame.

[0011] Preferably, the transverse frame is provided with a transverse adjustment screw which is spirally connected to the transverse slider, and the tail end of the transverse adjustment screw is provided with a transverse adjustment dial; the vertical frame is provided with a vertical adjustment screw which is spirally connected to the vertical slider, and the tail end of the vertical adjustment screw is provided with a vertical adjustment dial.

[0012] Preferably, a cooling fan is provided on the workbench below the welding device.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The roller welding device for instruments and meters using the above technical solution comprises a clamping device that clamps the roller of the instrument and meters, a transmission device drives the roller to rotate, a welding device welds the rotating roller, and a cover plate is opened and connected to the top plate to form a welding protection chamber, which can realize automated rotating welding operation of the roller, eliminate the safety hazards caused by manual welding, and at the same time improve the uniformity of the weld, avoid cracks, and improve the product quality of the instrument and meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 The enlarged view of point A in the middle; Figure 3 It is a schematic diagram of the structure of the clamping device in the present invention; Figure 4 It is a schematic diagram of the working state of the clamping device in the present invention; Figure 5 It is a structural schematic diagram of the back of the present invention; Figure 6 for Figure 5 The enlarged view of point B in the middle; Figure 7 It is a left side view of the present invention; Figure 8 It is a front view of the present invention; Fig. 9 for Figure 8 Cross-sectional view of CC; Fig.10 for Figure 8 Cross-sectional view of the middle DD; In the figure: 1, base; 2, workbench; 3, clamping device; 31, first clamping base frame; 311, bottom connecting plate; 312, bottom connecting bolt; 313, bottom connecting column; 32, second clamping base frame; 33, support rod; 34, clamping upper frame; 341, upper connecting plate; 342, upper connecting bolt; 343, upper connecting column; 35, clamping adjustment screw; 351, rotating handle; 352, spring; 36, driving wheel; 37, driven wheel; 4, transmission device; 41, first transmission wheel; 42, second transmission wheel; 43, transmission rod; 44, third transmission wheel; 45, fourth transmission wheel; 5. Welding device; 51. Adjusting frame; 511. Horizontal frame; 512. Horizontal slider; 513. Horizontal adjusting screw; 514. Horizontal adjusting dial; 515. Vertical frame; 516. Vertical slider; 517. Vertical adjusting screw; 518. Vertical adjusting dial; 519. Extension frame; 52. L-shaped connecting frame; 53. Welding head; 54. Positioning knob; 6. Baffle; 7. Top plate; 8. Cover plate; 81. Bayonet; 9. Fixed frame; 91. Connecting strip; 92. Snap-on column; 10. Cooling fan; 11. Lifting platform; 12. Tightening cylinder; 13. Support roller; 14. Lifting frame. DETAILED DESCRIPTION

[0016] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0017] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0018] Embodiment 1: like Figure 1As shown, the roller welding device for instruments and meters comprises a base 1, a workbench 2 arranged on the base 1, a clamping device 3 for clamping the roller arranged on the workbench 2, a transmission device 4 for driving the roller to rotate arranged on the workbench 2, and a welding device 5 for welding the roller arranged on the workbench 2, a baffle 6 is provided on the side of the welding device 5 on the workbench 2, a top plate 7 is provided on the baffle 6, a foldable cover plate 8 is provided on the workbench 2, and the cover plate 8 is connected with the top plate 7 to form a welding protection chamber after being opened, and a fixing frame 9 corresponding to the cover plate 8 is provided on the side of the base 1, and the cover plate 8 is fixed by the fixing frame 9 after being folded.

[0019] During specific operation, the clamping device 3 clamps the roller of the instrument, the transmission device 4 drives the roller to rotate, the welding device 5 welds the rotating roller, and the cover plate 8 is opened and connected with the top plate 7 to form a welding protection chamber, which can realize the automated rotating welding operation of the roller, eliminate the safety hazards caused by manual welding, and at the same time improve the uniformity of the weld, avoid cracks, and improve the product quality of the instrument.

[0020] Embodiment 2: like Figure 2 As shown, reference Figure 1 On the basis of the first embodiment, the clamping device 3 includes a first clamping frame 31 and a second clamping frame 32 arranged side by side on the workbench 2, a support rod 33 arranged at the inner end of the first clamping frame 31, and a clamping upper frame 34 connected to the support rod 33 and corresponding to the first clamping frame 31. The clamping upper frame 34 is connected to the outer end of the first clamping frame 31 through a clamping adjustment screw 35. The first clamping frame 31 is provided with a driving wheel 36 connected to the top of the roller, and the first clamping frame 31, the second clamping frame 32 and the clamping upper frame 34 are all provided with a plurality of driven wheels 37 connected to the top of the roller.

[0021] When doing specific operations, such as Figure 4 As shown, after opening the clamping upper frame 34, the drum is placed on the first clamping base frame 31 and the second clamping base frame 32, and then the clamping upper frame 34 and the first clamping base frame 31 are connected by the clamping adjusting screw 35, and the clamping adjusting screw 35 is used to connect and adjust the clamping degree of the drum by the clamping upper frame 34 and the first clamping base frame 31, the driving wheel 36 and the driven wheel 37 are used to tighten the drum, the transmission device 4 drives the driving wheel 36 to rotate, and when the driving wheel 36 drives the drum to rotate, the driven wheel 37 rotates accordingly, so as to realize the uniform rotation of the drum, and the welding device 5 welds the rotating drum, which can improve the uniformity of the weld.

[0022] Embodiment three: like Figure 3As shown, on the basis of the second embodiment, the first clamping base frame 31 includes two parallel bottom connecting plates 311 with openings upward, and bottom connecting bolts 312 arranged at both ends of the bottom connecting plates 311 to connect the two bottom connecting plates 311; a driven wheel 37 is provided on the first clamping base frame 31, and the driving wheel 36 and the driven wheel 37 are symmetrically arranged between the two bottom connecting plates 311; the clamping upper frame 34 includes two parallel upper connecting plates 341 with openings downward, and upper connecting bolts 342 arranged at both ends and the center of the upper connecting plates 341 to connect the two upper connecting plates 341; the clamping upper frame 34 is provided with two driven wheels 37, and the two driven wheels 37 are symmetrically arranged between the two upper connecting plates 341; the driving wheel 36 and the driven wheel 37 on the first clamping base frame 31 are symmetrically arranged with the two driven wheels 37 on the clamping upper frame 34.

[0023] Two bottom connecting plates 311 with openings upward are supported and connected by bottom connecting bolts 312 to form a first clamping base frame 31 with width, which can enhance the stability of placing the roller; two upper connecting plates 341 with openings downward are supported and connected by upper connecting bolts 342 to form a clamping upper frame 34 with width, which can enhance the stability of clamping the roller; the structure of the second clamping base frame 32 is basically the same as that of the first clamping base frame 31, except that the second clamping base frame 32 adopts a driven wheel 37; when the weight of the roller is too heavy to be driven by the driving wheel 36 on the first clamping base frame 31, one of the driven wheels 37 on the second clamping base frame 32 can also be replaced by the driving wheel 36, as long as the rotation speed of the driving wheel 36 is the same; when the length of the roller becomes longer, multiple parallel second clamping base frames 32 can be added to the workbench 2 to ensure the stable placement of the roller.

[0024] Embodiment 4: like Figure 3 As shown, on the basis of Example 3, a bottom connecting column 313 is provided at the outer end of the first clamping base frame 31, an upper connecting column 343 is provided at the outer end of the clamping upper frame 34, the clamping adjustment screw 35 passes through the upper connecting column 343 and is screwed onto the bottom connecting column 313, a rotating handle 351 is provided on the top of the clamping adjustment screw 35, and a spring 352 is sleeved on the clamping adjustment screw 35 between the rotating handle 351 and the upper connecting column 343.

[0025] During specific operation, the clamping upper frame 34 and the first clamping base frame 31 clamp the roller, and the clamping adjustment screw 35 passes through the upper connecting column 343 and is screwed on the bottom connecting column 313. The clamping degree of the clamping upper frame 34 and the first clamping base frame 31 on the roller is adjusted by rotating the rotating handle 351, and the adjustment is convenient; the spring 352 plays a buffering role, ensuring that the driving wheel 36 and the driven wheel 37 are tightly pressed against the roller, while avoiding the driving wheel 36 and the driven wheel 37 from locking with the roller, so that the roller can rotate smoothly and ensure the normal progress of the welding seam.

[0026] Embodiment five: like Figure 8 , Fig. 9 and Fig.10 As shown, reference Figure 1 On the basis of the second embodiment, the transmission device 4 includes a first transmission wheel 41 driven by a motor and arranged on the workbench 2, a second transmission wheel 42 driven by the first transmission wheel 41 through a belt, a transmission rod 43 arranged on the second transmission wheel 42, a third transmission wheel 44 arranged at the end of the transmission rod 43, and a fourth transmission wheel 45 driven by the third transmission wheel 44 through a belt, and the fourth transmission wheel 45 is driven by the driving wheel 36 through a belt.

[0027] The ultimate purpose of the structure of the transmission device 4 is to drive the driving wheel 36 in the second embodiment to rotate, and then drive the roller to rotate. It can be used as a separate embodiment. It is slightly complicated from a structural point of view. However, combined with the third embodiment, "when the weight of the roller is too heavy to be driven by the driving wheel 36 on the first clamping frame 31, a driven wheel 37 on the second clamping frame 32 can be replaced by the driving wheel 36, as long as the rotation speed of the driving wheel 36 is the same; when the length of the roller becomes longer, multiple parallel second clamping frames 32 can be added to the workbench 2. , to ensure the stable placement of the roller", the structure of the transmission device 4 is very necessary. When adding the second clamping chassis 32 and replacing a driven wheel 37 on the second clamping chassis 32 with a driving wheel 36, a third transmission wheel 44 can be directly added to the corresponding position of the transmission rod 43, and a corresponding fourth transmission wheel 45 can be added to the workbench 2 to realize the transmission of the added driving wheel 36, so that the rotation speed of multiple driving wheels 36 is the same, ensuring the coaxial and uniform rotation of the roller, improving the quality of the weld, and no additional power is needed, and one motor can realize the transmission.

[0028] Embodiment six: like Figure 5 As shown, reference Figure 1 and Figure 2On the basis of the first embodiment, the welding device 5 includes an adjusting frame 51, an L-shaped connecting frame 52 arranged at the front end of the adjusting frame 51, and a welding head 53 arranged at the end of the L-shaped connecting frame 52. The L-shaped connecting frame 52 is slidably connected to the adjusting frame 51, and the adjusting frame 51 is provided with a positioning knob 54 for positioning the L-shaped connecting frame 52.

[0029] During specific operation, the adjustment frame 51 can adjust the horizontal and vertical positions of the welding head 53, and the L-shaped connecting frame 52 can slide on the adjustment frame 51 and rotate at the same time, and then be positioned by the positioning knob 54, so as to facilitate the adjustment of the welding position of the welding head 53 on the roller, which is easy to use.

[0030] Embodiment seven: like Figure 6 As shown, on the basis of Example 6, the adjustment frame 51 includes a horizontal frame 511 arranged on the workbench 2, a horizontal slider 512 slidingly connected to the horizontal frame 511, a vertical frame 515 arranged on the horizontal slider 512, a vertical slider 516 slidingly connected to the vertical frame 515, and an extension frame 519 connected to the vertical slider 516; the L-shaped connecting frame 52 is slidably connected to the extension frame 519, and the positioning knob 54 is arranged on the extension frame 519 to position the L-shaped connecting frame 52.

[0031] During specific operation, the horizontal position of the extension frame 519 is adjusted by the horizontal slider 512, and the vertical position of the extension frame 519 is adjusted by the vertical slider 516, so as to adjust the horizontal and vertical positions of the L-shaped connecting frame 52. The welding head 53 is arranged at the end of the L-shaped connecting frame 52, and then the horizontal and vertical positions of the welding head 53 are adjusted, which is convenient for adjustment.

[0032] Embodiment eight: like Figure 6 As shown, on the basis of Example 7, the horizontal frame 511 is provided with a horizontal adjustment screw 513 which is screwed on the horizontal slider 512, and the tail end of the horizontal adjustment screw 513 is provided with a horizontal adjustment dial 514; the vertical frame 515 is provided with a vertical adjustment screw 517 which is screwed on the vertical slider 516, and the tail end of the vertical adjustment screw 517 is provided with a vertical adjustment dial 518.

[0033] During specific operation, the horizontal adjustment dial 514 rotates to drive the horizontal adjustment screw 513 to adjust the position of the horizontal slider 512, and the vertical adjustment dial 518 rotates to drive the vertical adjustment screw 517 to adjust the position of the vertical slider 516. After the adjustment is completed, the horizontal adjustment dial 514 and the vertical adjustment dial 518 can be locked to ensure that the positions of the horizontal slider 512 and the vertical slider 516 are fixed, thereby locking the position of the welding head 53 to improve the accuracy of the weld of the welding head 53.

[0034] Embodiment nine: like Figure 1 As shown, on the basis of the first embodiment, a cooling fan 10 is provided on the workbench 2 below the welding device 5. It can dissipate heat during roller welding to avoid overheating of welding and affect the welding quality of the product.

[0035] Embodiment ten: like Figure 7 As shown, reference Figure 1 On the basis of the first embodiment, a lifting platform 11 is provided on the side of the workbench 2 on the base 1, a supporting roller 13 is provided on the lifting platform 11, a tightening cylinder 12 is provided on the side of the lifting platform 11 on the base 1, and a lifting frame 14 is provided at the bottom of the lifting platform 11.

[0036] If there are extended parts on the side of the drum, they are placed on the support rollers 13 of the lifting platform 11, and the position of the lifting platform 11 is adjusted by the lifting frame 14. At the same time, the side is tightened by the tightening cylinder 12 to prevent the side from deflecting.

[0037] Embodiment eleven: like Figure 7 As shown, reference Figure 1 On the basis of the first embodiment, the fixing frame 9 is provided with a connecting strip 91, the end of the connecting strip 91 is provided with a clamping column 92, and the cover plate 8 is provided with a clamping hole 81 corresponding to the clamping column 92. The cover plate 8 is stretched open by the connecting strip and connected to the top plate 7 to form a welding protection chamber, and the clamping column 92 rotates in the clamping hole 81, which is convenient for stretching and reliable for support.

[0038] The above-mentioned implementation modes are only preferred implementation modes of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present application shall fall within the scope of protection required by the present application.

Claims

1. Roller welding device for instruments and meters, characterized by: The invention comprises a base (1), a workbench (2) arranged on the base (1), a clamping device (3) arranged on the workbench (2) for clamping a roller, a transmission device (4) arranged on the workbench (2) for driving the roller to rotate, and a welding device (5) arranged on the workbench (2) for welding the roller, wherein a baffle (6) is arranged on the side of the welding device (5) on the workbench (2), a top plate (7) is arranged on the baffle (6), a foldable cover plate (8) is arranged on the workbench (2), and the cover plate (8) is connected to the top plate (7) to form a welding protection chamber after being opened, and a fixing frame (9) corresponding to the cover plate (8) is arranged on the side of the base (1), and the cover plate (8) is fixed by the fixing frame (9) after being folded.

2. The roller welding device for instruments and meters according to claim 1 is characterized in that: The clamping device (3) comprises a first clamping base frame (31) and a second clamping base frame (32) arranged side by side on the workbench (2), a support rod (33) arranged at the inner end of the first clamping base frame (31), and a clamping upper frame (34) connected to the support rod (33) and corresponding to the first clamping base frame (31); the clamping upper frame (34) is connected to the outer end of the first clamping base frame (31) via a clamping adjustment screw (35); the first clamping base frame (31) is provided with a driving wheel (36) connected to the top of the roller; the first clamping base frame (31), the second clamping base frame (32) and the clamping upper frame (34) are all provided with a plurality of driven wheels (37) connected to the top of the roller.

3. The roller welding device for instruments and meters according to claim 2, characterized in that: The first clamping base frame (31) comprises two parallel bottom connecting plates (311) with openings facing upward, and bottom connecting bolts (312) provided at both ends of the bottom connecting plates (311) to connect the two bottom connecting plates (311). A driven wheel (37) is provided on the first clamping base frame (31), and the driving wheel (36) and the driven wheel (37) are symmetrically arranged between the two bottom connecting plates (311). The clamping upper frame (34) comprises two parallel upper connecting plates (341) with openings facing downward, and upper connecting bolts (342) provided at both ends and the center of the upper connecting plates (341) to connect the two upper connecting plates (341). Two driven wheels (37) are provided on the clamping upper frame (34), and the two driven wheels (37) are symmetrically arranged between the two upper connecting plates (341). The driving wheel (36) and the driven wheel (37) on the first clamping base frame (31) are symmetrically arranged with the two driven wheels (37) on the clamping upper frame (34).

4. The roller welding device for instruments and meters according to claim 3 is characterized in that: A bottom connecting column (313) is provided at the outer end of the first clamping bottom frame (31), an upper connecting column (343) is provided at the outer end of the clamping upper frame (34), the clamping adjustment screw (35) passes through the upper connecting column (343) and is screwed to the bottom connecting column (313), a rotating handle (351) is provided at the top of the clamping adjustment screw (35), and a spring (352) is sleeved on the clamping adjustment screw (35) between the rotating handle (351) and the upper connecting column (343).

5. The roller welding device for instruments and meters according to claim 2, characterized in that: The transmission device (4) comprises a first transmission wheel (41) provided on the workbench (2) and driven by a motor, a second transmission wheel (42) driven by the first transmission wheel (41) through a belt, a transmission rod (43) provided on the second transmission wheel (42), a third transmission wheel (44) provided at the end of the transmission rod (43), and a fourth transmission wheel (45) driven by the third transmission wheel (44) through a belt, wherein the fourth transmission wheel (45) is driven by a driving wheel (36) through a belt.

6. The roller welding device for instruments and meters according to claim 1, characterized in that: The welding device (5) comprises an adjusting frame (51), an L-shaped connecting frame (52) arranged at the front end of the adjusting frame (51), and a welding head (53) arranged at the end of the L-shaped connecting frame (52); the L-shaped connecting frame (52) is slidably connected to the adjusting frame (51); and a positioning knob (54) for positioning the L-shaped connecting frame (52) is provided on the adjusting frame (51).

7. The roller welding device for instruments and meters according to claim 6, characterized in that: The adjustment frame (51) comprises a transverse frame (511) provided on the workbench (2), a transverse slider (512) slidably connected to the transverse frame (511), a vertical frame (515) provided on the transverse slider (512), a vertical slider (516) slidably connected to the vertical frame (515), and an extension frame (519) connected to the vertical slider (516); the L-shaped connecting frame (52) is slidably connected to the extension frame (519); and the positioning knob (54) is provided on the extension frame (519) to position the L-shaped connecting frame (52).

8. The roller welding device for instruments and meters according to claim 7, characterized in that: The horizontal frame (511) is provided with a horizontal adjustment screw (513) which is screwed through the horizontal slider (512), and the tail end of the horizontal adjustment screw (513) is provided with a horizontal adjustment dial (514); the vertical frame (515) is provided with a vertical adjustment screw (517) which is screwed through the vertical slider (516), and the tail end of the vertical adjustment screw (517) is provided with a vertical adjustment dial (518).

9. The roller welding device for instruments and meters according to claim 1, characterized in that: A cooling fan (10) is provided on the workbench (2) below the welding device (5).

10. The roller welding device for instruments and meters according to claim 1, characterized in that: A lifting platform (11) is provided on the base (1) at the side of the workbench (2), a supporting roller (13) is provided on the lifting platform (11), a tightening cylinder (12) is provided on the base (1) at the side of the lifting platform (11), and a lifting frame (14) is provided at the bottom of the lifting platform (11).

Images