An automated welding device for a single crystal furnace and its usage method

Abstract

The present invention relates to the field of welding equipment. The present invention discloses an automatic welding equipment for a single crystal furnace and its usage method. The problem to be solved by the present invention is that after the equipment welds the external connection between the furnace body and the top fitting, it is still necessary to unlock the fixture and then weld the inner walls of the furnace body and the top fitting. The present invention is composed of an inner support welding mechanism and an outer support welding mechanism. The automatic welding equipment for the single crystal furnace and its usage method drive the lower sleeve to move downward and abut against the top surface of the hollow rotating disc as the cylinder extends. As the cylinder continues to extend, it drives the slider to move downward and slide in the chute, and then drives the bearing to move downward. The downward movement of the bearing pushes the first spring telescopic rod at the lower end of the pressure rod to squeeze and deflect the hinge plate, and then pushes the L-shaped clamping plate to move away from the pressure rod and internally support on the inner walls of the ring and the single crystal furnace body, ensuring that the central axis of the ring is coaxial with the central axis of the single crystal furnace body, facilitating subsequent welding.

Description

Technical Field

[0001] The present invention relates to the field of welding equipment, and specifically to an automatic welding equipment for a single crystal furnace and its usage method. Background Art

[0002] A single crystal furnace is a device that melts polycrystalline materials such as polysilicon in an inert gas environment using a graphite heater and grows dislocation-free single crystals by the Czochralski method. When the single crystal furnace is in production, it is necessary to weld between the top of its furnace body and the top fittings. When welding, welding equipment is required;

[0003] When the existing welding equipment welds between the top of the furnace body and the top fittings, it is necessary to first fix the furnace body and the fittings through a fixture, and then weld the outer walls of the furnace body and the top fittings. After welding is completed, it is also necessary to unlock the fixture and then weld the inner walls of the furnace body and the top fittings. The operation is relatively troublesome and time-consuming. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic welding equipment for a single crystal furnace and its usage method to solve the problem that after the equipment welds the external connection between the furnace body and the top fittings, it is still necessary to unlock the fixture and then weld the inner walls of the furnace body and the top fittings. To achieve the above purpose, the present invention provides the following technical solution: An automatic welding equipment for a single crystal furnace, including a placement seat. The middle of the top surface of the placement seat is rotationally connected with a hollow rotating disk. Four electric telescopic rods are fixedly connected to the hollow rotating disk at equal intervals in a circular ring. One end of the electric telescopic rod is fixedly connected with a clamping plate;

[0005] The rear side of the top surface of the placement seat is fixedly connected with an L-shaped plate. A rotating motor is fixedly connected to the L-shaped plate. The lower end of the rotating motor is fixedly connected with a cylinder. An inner side support welding mechanism is fixedly connected to the cylinder. An outer side support welding mechanism is also arranged on the inner side support welding mechanism. The welding furnace body is fixed by the inner side support welding mechanism and then the outer wall of the welding furnace body is welded in cooperation with the outer side support welding mechanism. Then, the outer side of the welding furnace body is fixed by the outer side support welding mechanism, and the inner wall of the welding furnace body is welded in cooperation with the inner side support welding mechanism.

[0006] Preferably, the inner side support welding mechanism includes an upper sleeve sleeved on the telescopic end of the cylinder. Four equally spaced sliding grooves are opened on the side surface of the upper sleeve. A slider is slidably connected in the sliding groove. One end of the slider is fixed on the lower end of the cylinder. One end of the bottom surface of the slider is fixedly connected with a bearing. The lower end of the inner ring of the bearing is fixedly connected with a pressure rod. The lower end of the pressure rod is fixedly connected with a first spring telescopic rod, and one end of the first spring telescopic rod is rounded;

[0007] The lower end surface of the upper sleeve is rotatably connected to the lower sleeve, and the lower sleeve passes through the hollow rotating disc and abuts against the top surface of the placement seat. Two parallel hinge plates are hinged on the outer wall of the lower sleeve. One end of the two hinge plates away from the lower sleeve is hinged with an L-shaped clamping plate. The lower hinge plate abuts against one end of the first spring telescopic rod, and a return spring telescopic rod is hinged on the upper hinge plate. One end of the return spring telescopic rod away from the upper hinge plate is hinged on the lower sleeve.

[0008] Preferably, the inner support welding mechanism further includes a slide rail fixed on the lower sleeve. Two toothed plates are arranged on the slide rail in a mutually offset and sliding manner. A gear is meshed on the opposite sides of the two toothed plates, and the gear is rotatably connected to the slide rail. A first welding machine is fixedly connected to one of the toothed plates close to the lower sleeve. A second spring telescopic rod is also fixedly connected to one of the toothed plates close to the lower sleeve, and the end of the second spring telescopic rod away from the toothed plate is fixed on the slide rail;

[0009] One of the toothed plates away from the lower sleeve is in the same vertical plane as one of the L-shaped clamping plates.

[0010] Preferably, the outer support welding mechanism includes two parallel hinge connecting plates hinged on the outer wall of the upper sleeve. Spring telescopic pull rods are hinged on both sides of the upper hinge connecting plate. One end of the spring telescopic pull rod away from the hinge connecting plate is hinged on the outer ring of the bearing;

[0011] One end of the two hinge connecting plates away from the upper sleeve is hinged with an inner clamping plate, and a second welding machine is fixedly connected to the lower end of the inner clamping plate;

[0012] A third spring telescopic rod is fixedly connected to the side of the inner clamping plate facing the upper sleeve. An auxiliary idler wheel is rotatably sleeved on the outer sleeve of the third spring telescopic rod. A fixed spur gear is fixedly connected to the upper end surface of the auxiliary idler wheel. A moving spur gear is fixedly sleeved on the inner rod of the third spring telescopic rod, and the teeth of the moving spur gear are arranged opposite to the teeth of the fixed spur gear;

[0013] A deflecting plate is hinged on the next hinge connecting plate, and the lower end of the deflecting plate is on the upper side of the moving spur gear.

[0014] Preferably, inclined plates are fixedly connected to both the left and right sides of the L-shaped plate, and the ends of the inclined plates away from the L-shaped plate are fixed on the top surface of the placement seat.

[0015] Preferably, the L-shaped clamping plate is composed of an arc-shaped plate and a horizontal plate, and an anti-slip rubber sheet is adhered to the arc surface of the arc-shaped plate.

[0016] Preferably, the lower end of the slider is fixedly connected with a return spring telescopic plate, and the lower end of the return spring telescopic plate is fixed on the bottom surface of the inner wall of the chute.

[0017] Preferably, the method for using an automated welding device for a single crystal furnace includes the following steps:

[0018] S1: Place the single crystal furnace body to be welded on the hollow rotating disk, then extend the four electric telescopic rods and cooperate with the clamping plates to fix the single crystal furnace body. After placing the ring to be welded on the top of the single crystal furnace body, start the cylinder to extend, drive the lower sleeve to move down and abut against the top surface of the hollow rotating disk. As the cylinder continues to extend, drive the slider to move down and slide in the chute, thereby driving the bearing to move down. Push the first spring telescopic rod at the lower end of the pressure rod through the downward movement of the bearing to squeeze the hinge plate to deflect, and then push the L-shaped clamping plate to move away from the pressure rod to the outside, and internally support on the inner walls of the ring and the single crystal furnace body, ensuring that the central axis of the ring is coaxial with the central axis of the single crystal furnace body, facilitating subsequent welding;

[0019] S2: And during the downward movement of the bearing, pull the hinge connecting plate to deflect through the spring telescopic pull rod, so that the inner clamping plate moves towards the axis of the upper sleeve, drive the auxiliary caster on the inner clamping plate to abut against the ring, and at this time, one end of the second welding machine at the lower end of the inner clamping plate overlaps at the overlapping part between the ring and the outside of the single crystal furnace body;

[0020] Then start the rotating motor to drive the cylinder to rotate counterclockwise, so that the slider drives the hinge connecting plate on the outer ring of the bearing to rotate counterclockwise, prompting the inner clamping plate to drive the second welding machine to rotate counterclockwise to weld the overlapping part between the ring and the outside of the single crystal furnace body;

[0021] S3: When the welding of the overlapping part between the ring and the outside of the single crystal furnace body is completed, drive the bearing to move down by continuing to extend the cylinder, so that the first spring telescopic rod at the lower end of the pressure rod contracts and moves to the lower side of the next hinge plate. At this time, the upper hinge plate deflects under the action of the restoring force of the restoring spring telescopic rod to pull the L-shaped clamping plate away from the inner wall of the single crystal furnace body, and through the reset extrusion of the L-shaped clamping plate on the toothed plate away from the upper sleeve, the toothed plate is pushed to rotate clockwise, pulling the first welding machine on the other toothed plate towards the inner wall of the single crystal furnace body and abutting against the inner wall of the single crystal furnace body;

[0022] And when the bearing moves down, pull the spring telescopic pull rod to extend and deflect to squeeze the upper end of the deflecting plate, so that the deflecting plate deflects and abuts against the upper end of the third spring telescopic rod, driving the third spring telescopic rod to compress and making the moving spur gear move down to engage with the fixed spur gear, restricting the rotation of the auxiliary caster. Then drive the auxiliary caster on the inner clamping plate to rotate clockwise through the rotating motor, drive the welded ring and the single crystal furnace body to rotate clockwise, and weld the overlapping part between the ring and the inner support of the single crystal furnace body through the first welding machine, that is, complete the welding of the inside and outside of the ring and the single crystal furnace body by the device.

[0023] Compared with the prior art, the beneficial effects of the present invention:

[0024] In the present invention, the lower sleeve is driven to move downward by the extension of the cylinder and abuts against the top surface of the hollow rotating disk. As the cylinder continues to extend, the slider is driven to move downward and slide in the chute, thereby driving the bearing to move downward. The downward movement of the bearing pushes the first spring telescopic rod at the lower end of the pressure rod to squeeze and deflect the hinge plate, and then pushes the L-shaped clamping plate to move away from the pressure rod and internally support on the inner wall of the ring and the single crystal furnace body, ensuring that the central axis of the ring is coaxial with the central axis of the single crystal furnace body, which is convenient for subsequent welding.

[0025] In the present invention, the hinge connecting plate is pulled to deflect by the spring telescopic pull rod, so that the inner clamping plate moves towards the axis of the upper sleeve, driving the auxiliary clamping wheel on the inner clamping plate to abut against the ring. At this time, one end of the second welding machine at the lower end of the inner clamping plate overlaps at the overlapping part between the ring and the outer side of the single crystal furnace body; the rotation motor is started to drive the cylinder to rotate counterclockwise, so that the slider drives the hinge connecting plate on the outer ring of the bearing to rotate counterclockwise, prompting the inner clamping plate to drive the second welding machine to rotate counterclockwise to weld the overlapping part between the ring and the outer side of the single crystal furnace body.

[0026] In the present invention, when the bearing moves downward, the spring telescopic pull rod is pulled to extend and deflect to squeeze the upper end of the deflecting plate, so that the deflecting plate deflects and abuts against the upper end of the third spring telescopic rod, driving the third spring telescopic rod to compress and the moving spur gear to move downward and engage with the fixed spur gear, restricting the rotation of the auxiliary clamping wheel. Then, the rotation motor drives the auxiliary clamping wheel on the inner clamping plate to rotate clockwise, driving the welded ring and the single crystal furnace body to rotate clockwise, and welding the overlapping part between the ring and the internally supported single crystal furnace body by the first welding machine, that is, completing the welding of the inner and outer sides of the ring and the single crystal furnace body by the equipment. Description of the Drawings

[0027] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 is a partial three-dimensional structural schematic diagram of the present invention;

[0029] Figure 3 is a three-dimensional structural schematic diagram of the upper sleeve and the slider of the present invention;

[0030] Figure 4 is a three-dimensional structural sectional view of the bearing of the present invention;

[0031] Figure 5 is a three-dimensional structural schematic diagram of the lower sleeve and the hinge plate of the present invention;

[0032] Figure 6 is of the present invention Figure 5 enlarged view of the structure at A;

[0033] Figure 7Schematic three-dimensional structure diagram of the moving spur gear and the deflecting plate of the present invention;

[0034] Figure 8 Schematic cross-sectional three-dimensional structure diagram of the auxiliary clamping wheel of the present invention.

[0035] In the figure: 1, placing seat; 2, hollow rotating disc; 3, electric telescopic rod; 4, clamping plate; 5, L-shaped plate; 6, rotating motor; 7, cylinder; 8, inner side support welding mechanism; 81, upper sleeve; 82, chute; 83, slider; 84, bearing; 85, pressure rod; 86, first spring telescopic rod; 87, lower sleeve; 88, hinge plate; 89, L-shaped clamping plate; 810, slide rail; 811, toothed plate; 812, gear; 813, first welding machine; 814, second spring telescopic rod; 815, reset spring telescopic rod; 9, outer side support welding mechanism; 91, hinge connecting plate; 92, spring telescopic pull rod; 93, inner clamping plate; 94, second welding machine; 95, third spring telescopic rod; 96, auxiliary clamping wheel; 97, fixed spur gear; 98, moving spur gear; 99, deflecting plate; 10, inclined plate. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 to 8 , the present invention provides a technical solution: an automatic welding device for a single crystal furnace, including a placing seat 1, a hollow rotating disc 2 is rotatably connected to the middle of the top surface of the placing seat 1, and four electric telescopic rods 3 are fixedly connected to the hollow rotating disc 2 at equal intervals in a ring shape, and one end of the electric telescopic rod 3 is fixedly connected to a clamping plate 4;

[0038] The rear side of the top surface of the placing seat 1 is fixedly connected with an L-shaped plate 5, a rotating motor 6 is fixedly connected to the L-shaped plate 5, a cylinder 7 is fixedly connected to the lower end of the rotating motor 6, an inner side support welding mechanism 8 is fixedly connected to the cylinder 7, and an outer side support welding mechanism 9 is further arranged on the inner side support welding mechanism 8. The welding furnace body is fixed by the inner side support welding mechanism 8 and then the outer wall of the welding furnace body is welded in cooperation with the outer side support welding mechanism 9, and then the outer side of the welding furnace body is fixed by the outer side support welding mechanism 9, and the inner wall of the welding furnace body is welded in cooperation with the inner side support welding mechanism 8.

[0039] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4, Figure 5 As shown in the figure, the inner support welding mechanism 8 includes an upper sleeve 81 sleeved on the telescopic end of the cylinder 7. Four equally spaced chutes 82 are provided on the side surface of the upper sleeve 81. A slider 83 is slidably connected in the chute 82. One end of the slider 83 is fixed to the lower end of the cylinder 7. One end of the bottom surface of the slider 83 is fixedly connected with a bearing 84. The lower end of the inner ring of the bearing 84 is fixedly connected with a pressure rod 85. The lower end of the pressure rod 85 is fixedly connected with a first spring telescopic rod 86, and one end of the first spring telescopic rod 86 is rounded;

[0040] The lower end surface of the upper sleeve 81 is rotatably connected with a lower sleeve 87, and an anti-slip rubber sheet is adhered to the lower end of the lower sleeve 87 to prevent the lower sleeve 87 from rotating on the top surface of the placing seat 1. The lower sleeve 87 passes through the hollow rotating disc 2 and abuts against the top surface of the placing seat 1. Two parallel hinge plates 88 are hinged on the outer wall of the lower sleeve 87. One end of the two hinge plates 88 away from the lower sleeve 87 is hinged with an L-shaped clamping plate 89. The lower hinge plate 88 abuts against one end of the first spring telescopic rod 86. A reset spring telescopic rod 815 is hinged on the upper hinge plate 88, and one end of the reset spring telescopic rod 815 away from the upper hinge plate 88 is hinged on the lower sleeve 87.

[0041] In this embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown in the figure, the inner support welding mechanism 8 further includes a slide rail 810 fixed on the lower sleeve 87. Two toothed plates 811 are arranged on the slide rail 810 in a sliding manner with opposite dislocation. A gear 812 is engaged on the opposite side of the two toothed plates 811, and the gear 812 is rotatably connected to the slide rail 810. A first welding machine 813 is fixedly connected to the toothed plate 811 close to the lower sleeve 87. A second spring telescopic rod 814 is also fixedly connected to the toothed plate 811 close to the lower sleeve 87, and one end of the second spring telescopic rod 814 away from the toothed plate 811 is fixed on the slide rail 810;

[0042] The toothed plate 811 away from the lower sleeve 87 is in the same vertical plane as one of the L-shaped clamping plates 89, ensuring that the L-shaped clamping plate 89 can squeeze the toothed plate 811 to slide on the slide rail 810 when moving.

[0043] In this embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8As shown, the outer support welding mechanism 9 includes two parallel hinge connecting plates 91 hinged to the outer wall of the upper sleeve 81. On both sides of the upper hinge connecting plate 91, there are hinge-connected spring telescopic pull rods 92. The end of the spring telescopic pull rod 92 far from the hinge connecting plate 91 is hinged to the outer ring of the bearing 84;

[0044] One end of the two hinge connecting plates 91 far from the upper sleeve 81 is hinged to an inner clamping plate 93, and the lower end of the inner clamping plate 93 is fixedly connected to a second welding machine 94;

[0045] On the side of the inner clamping plate 93 facing the upper sleeve 81, there is fixedly connected a third spring telescopic rod 95. The inner rod of the third spring telescopic rod 95 cannot rotate within the outer sleeve of the third spring telescopic rod 95. A auxiliary clamping wheel 96 is rotatably sleeved on the outer sleeve of the third spring telescopic rod 95. On the upper end surface of the auxiliary clamping wheel 96, there is fixedly connected a fixed spur gear 97. A moving spur gear 98 is fixedly sleeved on the inner rod of the third spring telescopic rod 95, and the teeth of the moving spur gear 98 are arranged opposite to the teeth of the fixed spur gear 97;

[0046] A deflection plate 99 is hinged to the next hinge connecting plate 91, and the lower end of the deflection plate 99 is on the upper side of the moving spur gear 98.

[0047] In this embodiment, as Figure 1 shown, inclined plates 10 are fixedly connected to both the left and right sides of the L-shaped plate 5, and the ends of the inclined plates 10 far from the L-shaped plate 5 are fixed on the top surface of the placement seat 1.

[0048] In this embodiment, as Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 shown, the L-shaped clamping plate 89 is composed of an arc-shaped plate and a transverse plate, and an anti-slip rubber sheet is adhered to the arc surface of the arc-shaped plate.

[0049] In this embodiment, as Figure 3 、 Figure 4 shown, the lower end of the slider 83 is fixedly connected to a reset spring telescopic plate, and the lower end of the reset spring telescopic plate is fixed on the bottom surface of the inner wall of the chute 82.

[0050] The usage method and advantages of the present invention: The usage method of the automatic welding equipment for a single crystal furnace is as follows. The working process is as follows:

[0051] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 shown:

[0052] S1: Place the single crystal furnace body to be welded on the hollow rotating disk 2. Then, extend the four electric telescopic rods 3 and cooperate with the clamping plates 4 to fix the single crystal furnace body. After placing the ring to be welded on the top of the single crystal furnace body, start the cylinder 7 to extend, driving the lower sleeve 87 to move downward and abut against the top surface of the hollow rotating disk 2. As the cylinder 7 continues to extend, drive the slider 83 to move downward and slide in the chute 82, thereby driving the bearing 84 to move downward. Through the downward movement of the bearing 84, push the first spring telescopic rod 86 at the lower end of the pressure rod 85 to squeeze and deflect the hinge plate 88, and then push the L-shaped clamping plate 89 to move away from the pressure rod 85 and internally support on the inner walls of the ring and the single crystal furnace body, ensuring that the central axis of the ring is coaxial with the central axis of the single crystal furnace body, facilitating subsequent welding;

[0053] S2: And during the downward movement of the bearing 84, pull the hinge connecting plate 91 to deflect through the spring telescopic pull rod 92, causing the inner clamping plate 93 to move towards the axis of the upper sleeve 81, driving the auxiliary caster 96 on the inner clamping plate 93 to abut against the ring. At this time, one end of the second welding machine 94 on the lower end of the inner clamping plate 93 overlaps at the overlapping part between the ring and the outer side of the single crystal furnace body;

[0054] Then start the rotating motor 6 to drive the cylinder 7 to rotate counterclockwise, causing the slider 83 to drive the hinge connecting plate 91 on the outer ring of the bearing 84 to rotate counterclockwise, prompting the inner clamping plate 93 to drive the second welding machine 94 to rotate counterclockwise to weld the overlapping part between the ring and the outer side of the single crystal furnace body;

[0055] S3: When the welding of the overlapping part between the ring and the outer side of the single crystal furnace body is completed, continue to extend the cylinder 7 to drive the bearing 84 to move downward, causing the first spring telescopic rod 86 at the lower end of the pressure rod 85 to contract and move below the next hinge plate 88 on the lower side. At this time, the upper hinge plate 88 deflects under the action of the restoring force of the restoring spring telescopic rod 815, pulling the L-shaped clamping plate 89 to separate from the inner wall of the single crystal furnace body. And through the reset extrusion of the L-shaped clamping plate 89 on the toothed plate 811 away from the upper sleeve 81, causing the toothed plate 811 to push the gear 812 to rotate clockwise, pulling the first welding machine 813 on another toothed plate 811 to move towards the inner wall of the single crystal furnace body and abut against the inner wall of the single crystal furnace body;

[0056] When the bearing 84 moves downward, the spring telescopic pull rod 92 is pulled to elongate and deflect to squeeze the upper end of the deflection plate 99, so that the deflection plate 99 deflects and abuts against the upper end of the third spring telescopic rod 95, driving the third spring telescopic rod 95 to compress and causing the moving spur gear 98 to move downward to engage with the fixed spur gear 97, restricting the rotation of the auxiliary idler wheel 96. Then, the rotation motor 6 drives the auxiliary idler wheel 96 on the inner clamping plate 93 to rotate clockwise, driving the welded ring to rotate clockwise with the single crystal furnace body, and welding the lap joint between the ring and the inner support of the single crystal furnace body by the first welding machine 813, that is, completing the welding of the inner and outer sides of the ring and the single crystal furnace body by the equipment.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. An automated welding device for a single crystal furnace, comprising a placement seat (1), characterized in that: The middle of the top surface of the placement seat (1) is rotatably connected to a hollow rotating disk (2), four electric telescopic rods (3) are fixedly connected to the hollow rotating disk (2) in a ring shape at equal intervals, and one end of the electric telescopic rod (3) is fixedly connected to a clamping plate (4); An L-shaped plate (5) is fixedly connected to the rear side of the top surface of the placement seat (1), a rotating motor (6) is fixedly connected to the L-shaped plate (5), a cylinder (7) is fixedly connected to the lower end of the rotating motor (6), an inner support welding mechanism (8) is fixedly connected to the cylinder (7), and an outer support welding mechanism (9) is also provided on the inner support welding mechanism (8), the welding furnace body is fixed by the inner support welding mechanism (8), and then the outer wall of the welding furnace body is welded in conjunction with the outer support welding mechanism (9), and then the outer side of the welding furnace body is fixed by the outer support welding mechanism (9), and the inner wall of the welding furnace body is welded in conjunction with the inner support welding mechanism (8); The inner supporting welding mechanism (8) includes an upper sleeve (81) sleeved on the telescopic end of the cylinder (7), four equally spaced sliding grooves (82) are provided on the side surface of the upper sleeve (81), a slider (83) is slidably connected in the sliding groove (82), one end of the slider (83) is fixed on the lower end of the cylinder (7), a bearing (84) is fixedly connected to one end of the bottom surface of the slider (83), a pressure rod (85) is fixedly connected to the lower end of the inner ring of the bearing (84), and the lower end of the pressure rod (85) is fixedly connected to the first spring telescopic rod (86), and one end of the first spring telescopic rod (86) is rounded; The lower end surface of the upper sleeve (81) is rotatably connected to the lower sleeve (87), and the lower sleeve (87) passes through the hollow rotating disk (2) and contacts the top surface of the placement seat (1). Two parallel hinge plates (88) are hinged on the outer wall of the lower sleeve (87), and one end of the two hinge plates (88) away from the lower sleeve (87) is hinged to an L-shaped clamping plate (89). The lower hinge plate (88) contacts one end of the first spring telescopic rod (86), and a return spring telescopic rod (815) is hinged on the upper hinge plate (88), and the end of the return spring telescopic rod (815) away from the upper hinge plate (88) is hinged to the lower sleeve (87); The inner supporting welding mechanism (8) further comprises a slide rail (810) fixed on the lower sleeve (87), two tooth plates (811) are provided on the slide rail (810) for sliding displacement in opposite directions, gears (812) are meshed on opposite sides of the two tooth plates (811), and the gears (812) are rotatably connected to the slide rail (810), a first welding machine (813) is fixedly connected to one of the tooth plates (811) close to the lower sleeve (87), a second spring telescopic rod (814) is also fixedly connected to one of the tooth plates (811) close to the lower sleeve (87), and an end of the second spring telescopic rod (814) away from the tooth plate (811) is fixed to the slide rail (810); One of the toothed plates (811) away from the casing string (87) is in the same vertical plane as one of the L-shaped clamping plates (89).

2. The automated welding equipment for a single crystal furnace according to claim 1, wherein: The outer support welding mechanism (9) includes two parallel hinge connecting plates (91) hinged on the outer wall of the upper casing (81). On both sides of the upper hinge connecting plate (91), spring telescopic tie rods (92) are hinged. The end of the spring telescopic tie rod (92) away from the hinge connecting plate (91) is hinged on the outer ring of the bearing (84); One end of the two hinge connecting plates (91) away from the upper casing (81) is hinged with an inner clamping plate (93). A second welding machine (94) is fixedly connected to the lower end of the inner clamping plate (93); A third spring telescopic rod (95) is fixedly connected to the side of the inner clamping plate (93) facing the upper casing (81). An auxiliary clamping wheel (96) is rotatably sleeved on the outer tube of the third spring telescopic rod (95). A fixed spur gear (97) is fixedly connected to the upper end face of the auxiliary clamping wheel (96). A moving spur gear (98) is fixedly sleeved on the inner rod of the third spring telescopic rod (95), and the teeth of the moving spur gear (98) are arranged opposite to the teeth of the fixed spur gear (97); A deflecting plate (99) is hinged on the next hinge connecting plate (91), and the lower end of the deflecting plate (99) is on the upper side of the moving spur gear (98).

3. The automated welding equipment for a single crystal furnace according to claim 1, characterized in that: Slant plates (10) are fixedly connected to both the left and right sides of the L-shaped plate (5), and the ends of the slant plates (10) away from the L-shaped plate (5) are fixed on the top surface of the placing seat (1).

4. An automated welding device for a single crystal furnace according to claim 1, characterized in that: The L-shaped clamping plate (89) is composed of an arc-shaped plate and a cross plate, and an anti-slip rubber sheet is bonded to the arc surface of the arc-shaped plate.

5. The automated welding equipment for a single crystal furnace according to claim 1, characterized in that: The lower end of the slider (83) is fixedly connected with a reset spring telescopic plate, and the lower end of the reset spring telescopic plate is fixed on the bottom surface of the inner wall of the chute (82).

6. The method for using the automated welding equipment for a single crystal furnace according to claim 2, wherein: It includes the following steps: S1: Place the single crystal furnace body to be welded on the hollow rotating disk (2), then extend the four electric telescopic rods (3) to cooperate with the clamping plate (4) to fix the single crystal furnace body. After placing the ring to be welded on the top of the single crystal furnace body, start the cylinder (7) to extend, drive the lower casing (87) to move downward and abut against the top surface of the hollow rotating disk (2). As the cylinder (7) continues to extend, drive the slider (83) to move downward and slide in the chute (82), thereby driving the bearing (84) to move downward. Push the first spring telescopic rod (86) at the lower end of the pressure rod (85) to squeeze and deflect the hinge plate (88), and then push the L-shaped clamping plate (89) to move to the side away from the pressure rod (85), and internally support on the inner walls of the ring and the single crystal furnace body to ensure that the central axis of the ring is coaxial with the central axis of the single crystal furnace body, facilitating subsequent welding; S2: And during the downward movement of the bearing (84), the hinge connecting plate (91) is pulled to deflect by the spring telescopic pull rod (92), so that the inner clamping plate (93) moves towards the axis of the upper sleeve (81), driving the auxiliary clamping wheel (96) on the inner clamping plate (93) to abut against the ring. At this time, one end of the second welding machine (94) at the lower end of the inner clamping plate (93) is lapped at the lapping position between the ring and the outer side of the single crystal furnace body; Then start the rotary motor (6) to drive the cylinder (7) to rotate counterclockwise, so that the slider (83) drives the hinge connecting plate (91) on the outer ring of the bearing (84) to rotate counterclockwise, prompting the inner clamping plate (93) to drive the second welding machine (94) to rotate counterclockwise to weld the lapping position between the ring and the outer side of the single crystal furnace body; S3: When the welding of the lapping position between the ring and the outer side of the single crystal furnace body is completed, the cylinder (7) continues to extend to drive the bearing (84) to move downward, so that the first spring telescopic rod (86) at the lower end of the pressure rod (85) contracts and moves below the lower hinge plate (88). At this time, the upper hinge plate (88) deflects under the action of the restoring force of the restoring spring telescopic rod (815) to pull the L-shaped clamping plate (89) away from the inner wall of the single crystal furnace body, and the tooth plate (811) far away from the upper sleeve (81) is squeezed and separated by the reset of the L-shaped clamping plate (89), so that the tooth plate (811) pushes the gear (812) to rotate clockwise, pulling the first welding machine (813) on another tooth plate (811) towards the inner wall of the single crystal furnace body and abutting against the inner wall of the single crystal furnace body; And when the bearing (84) moves downward, the spring telescopic pull rod (92) is pulled to extend and deflect to squeeze the upper end of the deflecting plate (99), so that the deflecting plate (99) deflects and abuts against the upper end of the third spring telescopic rod (95), driving the third spring telescopic rod (95) to compress and the moving spur gear (98) to move downward to engage with the fixed spur gear (97), restricting the rotation of the auxiliary clamping wheel (96). Then, the rotary motor (6) drives the auxiliary clamping wheel (96) on the inner clamping plate (93) to rotate clockwise, driving the welded ring and the single crystal furnace body to rotate clockwise, and welding the lapping position between the ring and the inner support of the single crystal furnace body by the first welding machine (813), that is, completing the welding of the ring and the inner and outer sides of the single crystal furnace body by the equipment.

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