A clamping device for welding quartz furnace tubes

Abstract

The invention belongs to the technical field of quartz furnace tube welding, in particular to a clamping device for quartz furnace tube welding. In view of the problem that the existing clamping device is not convenient for stably clamping the furnace tube during use, and is not convenient for taking and placing the furnace tube, and has a relatively single function, and is not convenient for preheating the furnace tube to be welded, thereby reducing the welding efficiency, the following scheme is proposed, which includes a base; a top plate, four support rods are fixedly installed on the top of the base, one end of the four support rods is fixedly connected to the bottom of the top plate, a through groove is opened on the base, a first positioning mechanism is arranged in the through groove, a connecting plate is fixedly connected to one side of the top plate, and the first positioning mechanism is used for clamping and positioning the furnace tube; the invention can stably clamp the furnace tube during use, and is convenient for taking and placing the furnace tube, and is convenient for preheating the furnace tube to be welded, thereby effectively improving the welding efficiency, and has a simple structure and is easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of quartz furnace tube welding, in particular to a clamping device for quartz furnace tube welding. Background Art

[0002] Diffusion furnace is one of the important process equipment in the front process of semiconductor production line. It is often used in diffusion, oxidation, annealing, alloying and sintering processes in industries such as large-scale integrated circuits, discrete devices, power electronics, optoelectronic devices and optical fibers. The quartz furnace tube is the reaction pipe in the diffusion furnace. Its main function is to isolate the contact between the process gas and the semiconductor material to ensure the stability and reliability of the diffusion process. In the production and manufacturing of quartz furnace tubes, it is necessary to weld the tail tube at the tail of the quartz furnace tube. At present, manual positioning welding is mostly used, which requires the operator to hold the tail tube and place it at the tail of the quartz furnace tube and weld it.

[0003] The patent document with publication number CN221019526U discloses a clamping device for welding quartz furnace tubes, which includes: a furnace tube support mechanism, a gantry mechanism, a moving mechanism and a tail tube clamping mechanism. The furnace tube support mechanism includes a support frame and rollers, and the rollers are arranged at the top four corners of the support frame; the gantry mechanism is arranged on one side of the support frame, and the moving mechanism includes a slide rail, a slider, a rack, a moving plate, a driving motor and a gear. The moving plate is arranged on the slider, and the gear is meshed with the rack; the tail tube clamping mechanism includes a servo electric cylinder, a lifting plate, a connecting rod and a clamp. The furnace tube support mechanism is used to support the furnace tube, and the setting of the roller allows the furnace tube to rotate. The tail tube clamping mechanism can stably clamp the tail tube and drive the tail tube to move up and down. The moving mechanism can drive the tail tube to move left and right, so that the tail tube moves to the precise position of the tail of the furnace tube for welding operation; this device can achieve stable and effective clamping and precise positioning functions, can improve work efficiency, improve product quality, and adapt to furnace tubes of different sizes.

[0004] However, the above patent document is not convenient for stably clamping the furnace tube during use, and it is not convenient to take and place the furnace tube. The function is relatively single and it is not convenient to preheat the furnace tube to be welded, which leads to reduced welding efficiency. For this reason, we propose a clamping device for quartz furnace tube welding to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that the clamping device is not convenient for stably clamping the furnace tube during use, and is not convenient for taking and placing the furnace tube, has a relatively single function, and is not convenient for preheating the furnace tube to be welded, thereby reducing the welding efficiency, and a clamping device for quartz furnace tube welding is proposed.

[0006] The present application provides a quartz furnace tube welding clamping device that adopts the following technical solution:

[0007] A clamping device for welding a quartz furnace tube, comprising:

[0008] Base;

[0009] The top plate, four support rods are fixedly installed on the top of the base, one end of each of the four support rods is fixedly connected to the bottom of the top plate, a through slot is provided on the base, a first positioning mechanism is provided in the through slot, a connecting plate is fixedly connected to one side of the top plate, and the first positioning mechanism is used to clamp and position the furnace tube;

[0010] The bottom plate, the top of the base is fixedly installed with two symmetrical fixed plates, the tops of the two fixed plates are provided with first slide grooves, the two first slide grooves are slidably installed with support plates, the tops of the two support plates are fixedly connected to the bottom of the bottom plate, and a support mechanism is provided on the bottom plate, which is used to support the furnace tube;

[0011] A slide plate, a second slide groove is provided on one side of the bottom plate, the slide plate is slidably installed in the second slide groove, a vertical plate is connected to the top of the slide plate, a third slide groove is provided on one side of the vertical plate, a second positioning mechanism is provided in the third slide groove, and the second positioning mechanism is used to clamp and position the tail pipe;

[0012] A preheating box is fixedly installed on the top of the top plate. An air inlet is opened on the top of the preheating box. A dustproof plate is fixedly installed in the air inlet. A furnace tube preheating mechanism is arranged in the preheating box. The furnace tube preheating mechanism is used to preheat the joints of the furnace tube and the tail tube to be welded.

[0013] The supporting mechanism includes a fixed seat, which is fixedly mounted on the bottom plate, a fourth slide groove is provided on the top of the fixed seat, a first slider is slidably mounted in the fourth slide groove, an arc-shaped supporting plate is fixedly mounted on the top of the first slider, a second screw is rotatably mounted on the fixed seat, the second screw is threadedly connected to the first slider, a rectangular hole is provided at one end of the second screw, and when the second screw rotates, the second screw can drive the first slider to move vertically, the first slider can drive the arc-shaped supporting plate to move vertically, and the arc-shaped supporting plate can support the furnace tube for easy taking and placing.

[0014] The first sprocket and the second sprocket are fixedly installed on the outer sides of the two first screws, and the same first chain is meshed on the first sprocket and the second sprocket. A second through hole is opened on the top inner wall of the through groove, and a rectangular rod is rotatably installed in the second through hole, and the rectangular rod is slidably installed in the rectangular hole. The third sprocket and the fourth sprocket are fixedly installed on the outer side of the first screw and one end of the rectangular rod, and the same second chain is meshed on the third sprocket and the fourth sprocket. When the first screw rotates, the first screw drives the first sprocket to rotate, and the first sprocket drives the second sprocket to rotate through the first chain, and then the second sprocket can drive the other first screw to rotate.

[0015] The second positioning mechanism includes two second sliding blocks, the two second sliding blocks are slidably installed in the third sliding groove, the outer sides of the two second sliding blocks are fixedly connected with arc-shaped clamping plates, the two arc-shaped clamping plates are fixedly connected with rubber pads, a third through hole is opened on the top of the vertical plate, a bidirectional screw rod is rotatably installed in the third through hole, the bidirectional screw rod is threadedly connected to the two second sliding blocks, one end of the bidirectional screw rod is fixedly connected with a hand wheel, when the hand wheel is rotated, the hand wheel drives the bidirectional screw rod to rotate, the bidirectional screw rod drives the two second sliding blocks to move vertically, the two second sliding blocks can respectively drive the two arc-shaped clamping plates to move vertically, and the two arc-shaped clamping plates can clamp and position the tail pipe.

[0016] A second motor is fixedly installed on one side of the preheating box, a transmission rod is rotatably installed on the preheating box, one end of the transmission rod is fixedly connected to the output shaft of the second motor, the first bevel gear is fixedly installed on the outside of the transmission rod, the other end of the transmission rod is fixedly connected to a rotating wheel, a connecting column is rotatably installed on the rotating wheel, one end of the connecting column is fixedly connected to a sleeve, a sliding rod is slidably installed in the sleeve, when the second motor is turned on, the second motor drives the transmission rod to rotate, the transmission rod drives the rotating wheel to rotate, and the rotating wheel can drive the connecting column and the sleeve to do circular motion.

[0017] A bellows is fixedly installed on the top plate, one end of the bellows is fixedly connected to the bottom of the preheating box, the other end of the bellows is fixedly connected to a swing plate, both sides of the swing plate are fixedly connected to cleaning cotton, a cavity is opened in the swing plate, the cavity is connected to the bellows, and a plurality of air outlet holes are opened on the inner walls on both sides of the cavity, a transmission shaft is rotatably installed on the connecting plate, one end of the sliding rod is fixedly connected to the outer side of the transmission shaft, when the sliding rod swings back and forth, the sliding rod can drive the transmission shaft to rotate back and forth, and the transmission shaft can drive the swing plate to rotate back and forth, and then the two cleaning cottons can clean the furnace tube and the tail pipe.

[0018] The furnace tube preheating mechanism includes a connecting rod, which is fixedly installed in the preheating box. A plurality of electric heating rods are fixedly installed in the preheating box. A rotating shaft is rotatably installed on the connecting rod. A fan blade is fixedly connected to the outer side of the rotating shaft. A second bevel gear is fixedly installed at one end of the rotating shaft. The second bevel gear is meshed with the first bevel gear. When the first bevel gear rotates, the first bevel gear can drive the second bevel gear to rotate, the second bevel gear drives the rotating shaft to rotate, and the rotating shaft can drive the fan blade to rotate.

[0019] A first electric push rod is fixedly installed on an inner wall of one side of the second slide groove, and an output shaft of the first electric push rod is fixedly connected to one side of the slide plate, and a second electric push rod is fixedly installed on the bottom of the slide plate, and an output shaft of the second electric push rod is fixedly connected to the bottom of the vertical plate. Two symmetrical guide holes are provided on the slide plate, and guide shafts are slidably installed in the two guide holes, and one end of the two guide shafts is fixedly connected to the bottom of the vertical plate. When the first electric push rod is turned on, the first electric push rod can drive the slide plate to move horizontally, and when the second electric push rod is turned on, the second electric push rod can drive the vertical plate to move vertically, and the two guide shafts can play a role in stabilizing the vertical movement of the vertical plate.

[0020] The first positioning mechanism includes a first motor, which is fixedly mounted on the bottom inner wall of the through groove. The bottom inner walls of the two first slide grooves are each provided with a first through hole, and first screws are rotatably mounted in the two first through holes. The two first screws are respectively threadedly connected to the two support plates, and one end of the first screw is fixedly connected to the output shaft of the first motor. When the first motor is turned on, the first motor drives the first screw to rotate, and the first screw can drive the support plate to move vertically.

[0021] Four first supports are fixedly installed on the top of the base plate, and four second supports are fixedly installed on the bottom of the top plate. The four first supports and the four second supports are each provided with an installation groove, and rollers are rotatably installed in the eight installation grooves. The outer sides of the eight rollers are fixedly connected with rubber sleeves. Through the arrangement of the eight rollers, two rollers can stably position the furnace tube, and through the arrangement of the rubber sleeves, the stability of the positioning can be further improved.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. In this scheme, when the first motor is turned on, the first motor drives the first screw to rotate, the first screw drives the first sprocket to rotate, the first sprocket drives the second sprocket to rotate through the first chain, the second sprocket drives another first screw to rotate, the two first screws respectively drive the two support plates to move vertically, and the eight rollers cooperate to stably clamp and position the furnace tube;

[0024] 2. In this solution, when the first electric push rod is turned on, the first electric push rod drives the slide plate to move horizontally, and then drives the second positioning mechanism to move horizontally, so that the horizontal position of the tail pipe can be adjusted. At the same time, by turning on the second electric push rod, the second electric push rod drives the second positioning mechanism to move vertically, so that the welding height of the tail pipe can be adjusted;

[0025] 3. In this scheme, when the second motor and multiple electric heating rods are turned on, the second motor drives the transmission rod to rotate, the transmission rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the rotating shaft drives the fan blades to rotate. The wind pressure generated by the rotation of the fan blades can discharge the heat generated by the electric heating rods through the bellows, the cavity and multiple air outlets, thereby preheating the furnace tube and the tail pipe to be welded.

[0026] The invention can stably clamp the furnace tube during use, facilitate taking and placing the furnace tube, and facilitate preheating the furnace tube to be welded, thereby effectively improving the welding efficiency, having a simple structure and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a fixing plate of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0029] Figure 3 This is a structural schematic diagram of a bottom plate of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of a top plate of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the bottom plate and the slide plate of a clamping device for quartz furnace tube welding proposed by the present invention;

[0032] Figure 6 This is a structural schematic diagram of a support mechanism of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of the cooperation of two first screws of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0034] Figure 8 This is a schematic structural diagram of a second positioning mechanism of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0035] Fig. 9 This is a structural schematic diagram of a preheating box of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0036] Fig.10 This is a schematic diagram of the structure of a fan blade of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0037] Fig.11This is a structural schematic diagram of a swing plate of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0038] Fig.12 This is a schematic diagram of the structure of a roller of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0039] Fig.13 This is a schematic diagram of the structure of a rotating wheel of a clamping device for welding a quartz furnace tube proposed by the present invention;

[0040] Fig.14 A quartz furnace tube welding clamping device proposed by the present invention Figure 1 The structural diagram of the enlarged part A in the middle;

[0041] Fig.15 A quartz furnace tube welding clamping device proposed by the present invention Figure 8 Schematic diagram of the enlarged structure of part B.

[0042] Figure numerals: 1, base; 2, support rod; 3, top plate; 4, fixed plate; 5, first slide; 6, support plate; 7, bottom plate; 8, first support; 9, second support; 10, rubber sleeve; 11, connecting plate; 12, fixed seat; 13, fourth slide; 14, first slider; 15, arc-shaped support plate; 16, preheating box; 17, second slide; 18, slide plate; 19, first electric push rod; 20, second electric push rod; 21, vertical plate; 22, guide shaft; 23, third slide; 24, second slider; 25, two-way screw; 26, arc-shaped clamping plate; 27, rubber pad; 28, hand wheel; 29, mounting groove; 30, roller; 31 , through slot; 32, first motor; 33, first screw; 34, first sprocket; 35, first chain; 36, second sprocket; 37, third sprocket; 38, second chain; 39, fourth sprocket; 40, rectangular rod; 41, second screw; 42, rectangular hole; 43, bellows; 44, swing plate; 45, transmission shaft; 46, cleaning cotton; 47, air outlet; 48, connecting rod; 49, electric heating rod; 50, dustproof plate; 51, second motor; 52, transmission rod; 53, first bevel gear; 54, second bevel gear; 55, rotating shaft; 56, fan blade; 57, rotating wheel; 58, connecting column; 59, sleeve; 60, sliding rod. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] Embodiment 1

[0045] Reference Figure 1-Figure 15, a clamping device for quartz furnace tube welding, comprising:

[0046] Base 1;

[0047] The top plate 3 and the base 1 are fixedly mounted with four support rods 2, one end of each of the four support rods 2 is fixedly connected to the bottom of the top plate 3, a through slot 31 is provided on the base 1, a first positioning mechanism is provided in the through slot 31, a connecting plate 11 is fixedly connected to one side of the top plate 3, and the first positioning mechanism is used to clamp and position the furnace tube;

[0048] Bottom plate 7, two symmetrical fixing plates 4 are fixedly installed on the top of the base 1, the tops of the two fixing plates 4 are provided with first slide grooves 5, and support plates 6 are slidably installed in the two first slide grooves 5, and the tops of the two support plates 6 are fixedly connected to the bottom of the bottom plate 7, and a supporting mechanism is provided on the bottom plate 7, which is used to support the furnace tube;

[0049] A slide plate 18, a second slide groove 17 is provided on one side of the bottom plate 7, the slide plate 18 is slidably installed in the second slide groove 17, a vertical plate 21 is connected to the top of the slide plate 18, a third slide groove 23 is provided on one side of the vertical plate 21, a second positioning mechanism is provided in the third slide groove 23, and the second positioning mechanism is used to clamp and position the tail pipe;

[0050] The preheating box 16 is fixedly mounted on the top of the top plate 3. An air inlet is provided on the top of the preheating box 16. A dustproof plate 50 is fixedly mounted in the air inlet. A furnace tube preheating mechanism is arranged in the preheating box 16. The furnace tube preheating mechanism is used to preheat the furnace tube and the tail tube to be welded.

[0051] Reference Figure 5 and Figure 8 A first electric push rod 19 is fixedly installed on the inner wall of one side of the second slide groove 17, and the output shaft of the first electric push rod 19 is fixedly connected to one side of the slide plate 18. A second electric push rod 20 is fixedly installed on the bottom of the slide plate 18, and the output shaft of the second electric push rod 20 is fixedly connected to the bottom of the vertical plate 21. Two symmetrical guide holes are opened on the slide plate 18, and guide shafts 22 are slidably installed in the two guide holes. One end of the two guide shafts 22 is fixedly connected to the bottom of the vertical plate 21. When the first electric push rod 19 is turned on, the first electric push rod 19 can drive the slide plate 18 to move horizontally. When the second electric push rod 20 is turned on, the second electric push rod 20 can drive the vertical plate 21 to move vertically. The two guide shafts 22 can play a role in stabilizing the vertical movement of the vertical plate 21.

[0052] Reference Figure 6The supporting mechanism includes a fixed seat 12, which is fixedly installed on the bottom plate 7. A fourth slide groove 13 is provided on the top of the fixed seat 12. A first slider 14 is slidably installed in the fourth slide groove 13. An arc-shaped support plate 15 is fixedly installed on the top of the first slider 14. A second screw 41 is rotatably installed on the fixed seat 12. The second screw 41 is threadedly connected to the first slider 14. A rectangular hole 42 is provided at one end of the second screw 41. When the second screw 41 rotates, the second screw 41 can drive the first slider 14 to move vertically, and the first slider 14 can drive the arc-shaped support plate 15 to move vertically. The arc-shaped support plate 15 can support the furnace tube for easy taking and placing.

[0053] Reference Figure 2 , Figure 3 , Figure 4 and Figure 7 The first positioning mechanism includes a first motor 32, which is fixedly mounted on the bottom inner wall of the through slot 31. The bottom inner walls of the two first slide slots 5 are each provided with a first through hole, and a first screw rod 33 is rotatably mounted in the two first through holes. The two first screw rods 33 are respectively threadedly connected to the two support plates 6, and one end of the first screw rod 33 is fixedly connected to the output shaft of the first motor 32. When the first motor 32 is turned on, the first motor 32 drives the first screw rod 33 to rotate, and the first screw rod 33 can drive the support plate 6 to move vertically. The outer sides of the two first screw rods 33 are respectively fixedly mounted with a first sprocket 34 and a second sprocket 36, and the first sprocket 34 and the second sprocket 36 are meshed with the same first chain 35. A second through hole is provided on the top inner wall of the through slot 31, and a rectangular rod 40 is rotatably mounted in the second through hole. The rectangular rod 40 is slidably mounted in the rectangular hole 42, and the outer side of the first screw rod 33 is connected to the rectangular A third sprocket 37 and a fourth sprocket 39 are fixedly installed at one end of the rod 40, and the third sprocket 37 and the fourth sprocket 39 are meshed with the same second chain 38. When the first screw 33 rotates, the first screw 33 drives the first sprocket 34 to rotate, and the first sprocket 34 drives the second sprocket 36 to rotate through the first chain 35, and then the second sprocket 36 can drive another first screw 33 to rotate. Four first supports 8 are fixedly installed on the top of the bottom plate 7, and four second supports 9 are fixedly installed on the bottom of the top plate 3. Mounting grooves 29 are opened on the four first supports 8 and the four second supports 9. Rollers 30 are rotatably installed in the eight mounting grooves 29, and the outer sides of the eight rollers 30 are fixedly connected with rubber sleeves 10. Through the arrangement of the eight rollers 30, the two rollers 30 can stably position the furnace pipe, and the stability of the positioning can be further improved through the arrangement of the rubber sleeves 10.

[0054] Reference Figure 8 and Fig.15The second positioning mechanism includes two second sliders 24, and the two second sliders 24 are slidably installed in the third slide groove 23. The outer sides of the two second sliders 24 are fixedly connected with arc-shaped clamping plates 26, and the two arc-shaped clamping plates 26 are fixedly connected with rubber pads 27. A third through hole is opened on the top of the vertical plate 21, and a bidirectional screw rod 25 is rotatably installed in the third through hole. The bidirectional screw rod 25 is threadedly connected to the two second sliders 24, and one end of the bidirectional screw rod 25 is fixedly connected with a hand wheel 28. When the hand wheel 28 is rotated, the hand wheel 28 drives the bidirectional screw rod 25 to rotate, and the bidirectional screw rod 25 drives the two second sliders 24 to move vertically. The two second sliders 24 can respectively drive the two arc-shaped clamping plates 26 to move vertically, and the two arc-shaped clamping plates 26 can clamp and position the tail pipe.

[0055] Reference Fig. 9 , Fig.10 , Fig.11 , Fig.13 and Fig.14 The furnace tube preheating mechanism includes a connecting rod 48, which is fixedly installed in the preheating box 16. A plurality of electric heating rods 49 are fixedly installed in the preheating box 16. A rotating shaft 55 is rotatably installed on the connecting rod 48. A fan blade 56 is fixedly connected to the outer side of the rotating shaft 55. A second bevel gear 54 is fixedly installed on one end of the rotating shaft 55. The second bevel gear 54 is meshed with a first bevel gear 53. When the first bevel gear 53 rotates, the first bevel gear 53 can drive the second bevel gear 54 to rotate, and the second bevel gear 54 drives the rotating shaft 55 to rotate, and the rotating shaft 55 can drive the fan blade 56 to rotate. A second motor 51 is fixedly installed on one side of the preheating box 16. A transmission rod 52 is rotatably installed on the preheating box 16. One end of the transmission rod 52 is fixedly connected to the output shaft of the second motor 51. The first bevel gear 53 is fixedly installed on the outer side of the transmission rod 52. A rotating wheel 57 is fixedly connected to the other end of the transmission rod 52. A connecting column 58 is rotatably installed on the rotating wheel 57. One end of the connecting column 58 is fixedly connected to The sleeve 59 has a sliding rod 60 slidably installed in the sleeve 59. When the second motor 51 is turned on, the second motor 51 drives the transmission rod 52 to rotate, and the transmission rod 52 drives the rotating wheel 57 to rotate. The rotating wheel 57 can drive the connecting column 58 and the sleeve 59 to make a circular motion. A bellows 43 is fixedly installed on the top plate 3. One end of the bellows 43 is fixedly connected to the bottom of the preheating box 16, and the other end of the bellows 43 is fixedly connected to the swing plate 44. Both sides of the swing plate 44 are fixedly connected to the cleaning Cleaning cotton 46, a cavity is opened in the swing plate 44, the cavity is communicated with the bellows 43, and multiple air outlet holes 47 are opened on the inner walls on both sides of the cavity. A transmission shaft 45 is rotatably installed on the connecting plate 11, and one end of the sliding rod 60 is fixedly connected to the outer side of the transmission shaft 45. When the sliding rod 60 swings back and forth, the sliding rod 60 can drive the transmission shaft 45 to rotate back and forth, and the transmission shaft 45 can drive the swing plate 44 to rotate back and forth, and then the two cleaning cottons 46 can clean the furnace pipe and the tail pipe.

[0056] The implementation principle of this embodiment is as follows: when in use, the furnace tube is placed on the top of the arc-shaped support plate 15, the tail pipe is placed between the two arc-shaped clamping plates 26, and the hand wheel 28 is turned. The hand wheel 28 drives the bidirectional screw rod 25 to rotate, and the bidirectional screw rod 25 drives the two second sliders 24 to approach each other, and the two second sliders 24 respectively drive the two arc-shaped clamping plates 26 to approach each other, so that the two arc-shaped clamping plates 26 can clamp the tail pipe, and then the first motor 32 is turned on, the first motor 32 drives the first screw rod 33 to rotate, the first screw rod 33 drives the first sprocket wheel 34 to rotate, the first sprocket wheel 34 drives the second sprocket wheel 36 to rotate through the first chain 35, and the second sprocket wheel 36 drives the other The first screw rods 33 rotate, and the two first screw rods 33 respectively drive the two support plates 6 to move vertically upward, and the two support plates 6 drive the bottom plate 7 to move vertically upward, and the bottom plate 7 drives the four first supports 8 to move vertically upward, and then the eight rollers 30 cooperate to clamp and position the furnace tube, and at the same time, the first screw rod 33 drives the third sprocket wheel 37 to rotate, and the third sprocket wheel 37 drives the fourth sprocket wheel 39 to rotate through the second chain 38, and the fourth sprocket wheel 39 drives the rectangular rod 40 to rotate, and the rectangular rod 40 cooperates with the rectangular hole 42 to drive the second screw rod 41 to rotate, and the second screw rod 41 drives the first slider 14 and the arc-shaped support plate 15 to move vertically downward, so that the furnace tube can be released. The support of the tail pipe is then turned on, and the first electric push rod 19 is driven by the first electric push rod 19 to move horizontally, and the slide 18 drives the second positioning mechanism to move horizontally, so that the horizontal position of the tail pipe can be adjusted. At the same time, the second electric push rod 20 can be turned on, and the second electric push rod 20 drives the second positioning mechanism to move vertically, so that the vertical position of the tail pipe can be adjusted. Finally, the second motor 51 and the plurality of electric heating rods 49 are turned on, and the second motor 51 drives the transmission rod 52 to rotate, and the transmission rod 52 drives the first bevel gear 53 to rotate, and the first bevel gear 53 drives the second bevel gear 54 to rotate, and the second bevel gear 54 drives the rotating shaft 55 to rotate, and the rotating shaft 55 5 drives the fan blades 56 to rotate. The wind pressure generated by the rotation of the fan blades 56 can discharge the heat generated by the multiple electric heating rods 49 through the bellows 43, the cavity and the multiple air outlets 47, so as to preheat the furnace tube and the tail pipe to be welded. At the same time, the transmission rod 52 drives the rotating wheel 57 to rotate, the rotating wheel 57 drives the connecting column 58 and the sleeve 59 to make a circular motion, the sleeve 59 drives the sliding rod 60 to swing back and forth, the sliding rod 60 drives the transmission shaft 45 to rotate back and forth, the transmission shaft 45 drives the swing plate 44 to swing back and forth, and then the two cleaning cottons 46 can clean the furnace tube and the tail pipe to be welded, and at the same time, the to-be-welded parts are evenly preheated, thereby improving the subsequent welding efficiency and quality.

[0057] Embodiment 2

[0058] The difference between this embodiment and the first embodiment is that a heat insulation cover is fixedly installed on the top of the base 1, an operation port is opened on the outside of the heat insulation cover, and the furnace pipe and the tail pipe to be welded are located inside the heat insulation cover. The high temperature generated by welding can be effectively isolated by the setting of the heat insulation cover, and welding processing can be carried out through the operation port to prevent the workers from being affected by the high temperature of welding and ensure welding efficiency.

[0059] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device for welding a quartz furnace tube, characterized in that: include: Base (1); A top plate (3), four support rods (2) are fixedly mounted on the top of the base (1), one end of each of the four support rods (2) is fixedly connected to the bottom of the top plate (3), a through slot (31) is provided on the base (1), a first positioning mechanism is provided in the through slot (31), a connecting plate (11) is fixedly connected to one side of the top plate (3), and the first positioning mechanism is used to clamp and position the furnace tube; A bottom plate (7), two symmetrical fixing plates (4) are fixedly installed on the top of the base (1), the tops of the two fixing plates (4) are each provided with a first slide groove (5), support plates (6) are slidably installed in the two first slide grooves (5), the tops of the two support plates (6) are each fixedly connected to the bottom of the bottom plate (7), and a support mechanism is provided on the bottom plate (7), the support mechanism being used to support the furnace tube; A slide plate (18), a second slide groove (17) is provided on one side of the bottom plate (7), the slide plate (18) is slidably mounted in the second slide groove (17), a vertical plate (21) is connected to the top of the slide plate (18), a third slide groove (23) is provided on one side of the vertical plate (21), a second positioning mechanism is provided in the third slide groove (23), and the second positioning mechanism is used to clamp and position the tail pipe; A preheating box (16), the preheating box (16) is fixedly mounted on the top of the top plate (3), an air inlet is opened on the top of the preheating box (16), a dustproof plate (50) is fixedly mounted in the air inlet, a furnace tube preheating mechanism is arranged in the preheating box (16), the furnace tube preheating mechanism is used to preheat the furnace tube and the tail tube to be welded at the connection point, four first supports (8) are fixedly mounted on the top of the bottom plate (7), four second supports (9) are fixedly mounted on the bottom of the top plate (3), the four first supports (8) and the four second supports (9) are all provided with mounting grooves (29), and the eight Rollers (30) are rotatably mounted in the mounting grooves (29), and rubber sleeves (10) are fixedly connected to the outer sides of the eight rollers (30). The support mechanism comprises a fixed seat (12), the fixed seat (12) is fixedly mounted on the bottom plate (7), a fourth slide groove (13) is provided on the top of the fixed seat (12), a first slider (14) is slidably mounted in the fourth slide groove (13), an arc-shaped support plate (15) is fixedly mounted on the top of the first slider (14), a second screw rod (41) is rotatably mounted on the fixed seat (12), and the second screw rod (41) and the first slider (14) are connected to each other. ) is threadedly connected, one end of the second screw rod (41) is provided with a rectangular hole (42), the first positioning mechanism comprises a first motor (32), the first motor (32) is fixedly mounted on the bottom inner wall of the through slot (31), the bottom inner walls of the two first slide slots (5) are each provided with a first through hole, a first screw rod (33) is rotatably mounted in the two first through holes, the two first screw rods (33) are respectively threadedly connected to the two support plates (6), one end of the first screw rod (33) is fixedly connected to the output shaft of the first motor (32), and the outer sides of the two first screw rods (33) are respectively fixedly mounted A first sprocket (34) and a second sprocket (36) are provided, and the first sprocket (34) and the second sprocket (36) are meshed with a first chain (35). A second through hole is provided on the top inner wall of the through slot (31), and a rectangular rod (40) is rotatably mounted in the second through hole. The rectangular rod (40) is slidably mounted in the rectangular hole (42). A third sprocket (37) and a fourth sprocket (39) are fixedly mounted on the outer side of the first screw rod (33) and one end of the rectangular rod (40), respectively, and the third sprocket (37) and the fourth sprocket (39) are meshed with a second chain (38).

2. A quartz furnace tube welding clamping device according to claim 1, characterized in that: A first electric push rod (19) is fixedly mounted on an inner wall of one side of the second slide groove (17); an output shaft of the first electric push rod (19) is fixedly connected to one side of the slide plate (18); a second electric push rod (20) is fixedly mounted on the bottom of the slide plate (18); an output shaft of the second electric push rod (20) is fixedly connected to the bottom of the vertical plate (21); two symmetrical guide holes are formed on the slide plate (18); guide shafts (22) are slidably mounted in the two guide holes; one end of the two guide shafts (22) is fixedly connected to the bottom of the vertical plate (21).

3. A quartz furnace tube welding clamping device according to claim 2, characterized in that: The second positioning mechanism comprises two second sliders (24), the two second sliders (24) are slidably mounted in the third slide groove (23), the outer sides of the two second sliders (24) are fixedly connected with arc-shaped clamping plates (26), the two arc-shaped clamping plates (26) are fixedly connected with rubber pads (27), a third through hole is formed at the top of the vertical plate (21), a bidirectional screw rod (25) is rotatably mounted in the third through hole, the bidirectional screw rod (25) is threadedly connected to the two second sliders (24), and one end of the bidirectional screw rod (25) is fixedly connected with a hand wheel (28).

4. The quartz furnace tube welding clamping device according to claim 3, characterized in that: The furnace tube preheating mechanism comprises a connecting rod (48), the connecting rod (48) being fixedly mounted in a preheating box (16), a plurality of electric heating rods (49) being fixedly mounted in the preheating box (16), a rotating shaft (55) being rotatably mounted on the connecting rod (48), a fan blade (56) being fixedly connected to the outer side of the rotating shaft (55), a second bevel gear (54) being fixedly mounted on one end of the rotating shaft (55), and the second bevel gear (54) being meshed with the first bevel gear (53).

5. The quartz furnace tube welding clamping device according to claim 4, characterized in that: A second motor (51) is fixedly mounted on one side of the preheating box (16); a transmission rod (52) is rotatably mounted on the preheating box (16); one end of the transmission rod (52) is fixedly connected to an output shaft of the second motor (51); a first bevel gear (53) is fixedly mounted on the outside of the transmission rod (52); a rotating wheel (57) is fixedly connected to the other end of the transmission rod (52); a connecting column (58) is rotatably mounted on the rotating wheel (57); one end of the connecting column (58) is fixedly connected to a sleeve (59); a sliding rod (60) is slidably mounted in the sleeve (59).

6. The quartz furnace tube welding clamping device according to claim 5, characterized in that: A bellows (43) is fixedly mounted on the top plate (3), one end of the bellows (43) is fixedly connected to the bottom of the preheating box (16), the other end of the bellows (43) is fixedly connected to a swing plate (44), both sides of the swing plate (44) are fixedly connected to cleaning cotton (46), a cavity is formed in the swing plate (44), the cavity is connected to the bellows (43), and a plurality of air outlet holes (47) are formed on the inner walls of both sides of the cavity, a transmission shaft (45) is rotatably mounted on the connecting plate (11), and one end of the sliding rod (60) is fixedly connected to the outer side of the transmission shaft (45).

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