Automatic welding equipment for single crystal furnace and use method of automatic welding equipment

Abstract

The invention relates to the field of welding equipment. The invention discloses automatic welding equipment for a single crystal furnace and a using method of the automatic welding equipment, and aims to solve the problem that after the equipment is used for welding the external joint of a furnace body and a top accessory, a clamp needs to be unlocked, and then the inner wall of the furnace body and the inner wall of the top accessory are welded. The welding device is composed of an inner side supporting and welding mechanism and an outer side supporting and welding mechanism. According to the automatic welding equipment for the single crystal furnace and the using method thereof, the lower sleeve is driven to move downwards and abut against the top face of the hollow rotating disc through extension of the air cylinder, the sliding block is driven to move downwards and slide in the sliding groove along with continuous extension of the air cylinder, and then the bearing is driven to move downwards; a first spring telescopic rod at the lower end of a pressing rod is pushed through downward movement of a bearing to extrude a hinged plate to deflect, then an L-shaped clamping plate is pushed to move towards the side away from the pressing rod and is internally supported on the inner walls of the ring and the single crystal furnace body, it is guaranteed that the central axis of the ring is coaxial with the central axis of the single crystal furnace body, and follow-up welding is facilitated.

Description

Technical Field

[0001] The invention relates to the field of welding equipment, and in particular to an automatic welding equipment for a single crystal furnace and a use method thereof. Background Art

[0002] A single crystal furnace is a device that uses a graphite heater to melt polycrystalline materials such as polysilicon in an inert gas environment and uses the Czochralski method to grow single crystals without dislocation. When producing a single crystal furnace, it is necessary to weld the top of the furnace body and the top accessories. When welding, welding equipment is required;

[0003] When welding between the top of the furnace body and the top accessories, the existing welding equipment needs to first fix the furnace body and the accessories with a clamp, and then weld the outer wall of the furnace body and the top accessories. After welding is completed, the clamp needs to be unlocked, and then the inner wall of the furnace body and the top accessories are welded. The operation is rather cumbersome and time-consuming. Summary of the invention

[0004] The purpose of the present invention is to provide an automated welding device for a single crystal furnace and a method for using the device, so as to solve the problem in the above background technology that after the device welds the external connection between the furnace body and the top accessory, it is necessary to unlock the clamp and then weld the inner wall of the furnace body and the top accessory. To achieve the above purpose, the present invention provides the following technical solutions: an automated welding device for a single crystal furnace, comprising a placement seat, a hollow rotating disk is rotatably connected to the middle of the top surface of the placement seat, four electric telescopic rods are fixedly connected to the hollow rotating disk in an equidistant manner, and one end of the electric telescopic rod is fixedly connected to a clamping plate;

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

[0006] Preferably, the inner support welding mechanism comprises an upper sleeve sleeved on the telescopic end of the cylinder, four equally spaced slide grooves are provided on the side of the upper sleeve, a slider is slidably connected in the slide groove, one end of the slider is fixed on the lower end of the cylinder, a bearing is fixedly connected to one end of the bottom surface of the slider, a pressure rod is fixedly connected to the lower end of the inner ring of the bearing, a first spring telescopic rod is fixedly connected to the lower end of the pressure 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 disk and abuts against the top surface of the placement seat. Two parallel hinged plates are hinged on the outer wall of the lower sleeve, and one end of the two hinged plates away from the lower sleeve is hinged with an L-shaped clamping plate, the lower hinged plate abuts against one end of the first spring telescopic rod, and a return spring telescopic rod is hinged to the upper hinged plate, and the end of the return spring telescopic rod away from the upper hinged plate is hinged to the lower sleeve.

[0008] Preferably, the inner side supporting welding mechanism further comprises a slide rail fixed on the lower casing, two tooth plates are arranged on the slide rail for sliding in opposite offset positions, gears are meshed on opposite sides of the two tooth plates, and the gears are rotatably connected to the slide rail, a first welding machine is fixedly connected to one of the tooth plates close to the lower casing, a second spring telescopic rod is also fixedly connected to one of the tooth plates close to the lower casing, and one end of the second spring telescopic rod away from the tooth plate is fixed to the slide rail;

[0009] One of the tooth plates away from the lower casing is on the same vertical plane as one of the L-shaped clamping plates.

[0010] Preferably, the outer supporting welding mechanism comprises two parallel hinged connecting plates hinged on the outer wall of the upper sleeve, both sides of the upper hinged connecting plate are hinged with spring telescopic pull rods, and one end of the spring telescopic pull rod away from the hinged connecting plate is hinged on the outer ring of the bearing;

[0011] The two hinged connecting plates are hingedly connected with inner clamping plates at one end away from the upper sleeve, and the lower end of the inner clamping plate is fixedly connected with a second welding machine;

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

[0013] A deflection plate is hingedly connected to the hinged connecting plate, and the lower end of the deflection plate is on the upper side of the moving flat gear.

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

[0015] Preferably, the L-shaped card plate is composed of a curved plate and a transverse plate, and an anti-slip rubber sheet is bonded to the curved surface of the curved plate.

[0016] Preferably, a return spring telescopic plate is fixedly connected to the lower end of the sliding block, and the lower end of the return spring telescopic plate is fixed to the bottom surface of the inner wall of the sliding groove.

[0017] Preferably, the method for using the automatic welding equipment of a single crystal furnace comprises the following steps:

[0018] S1: Place the single crystal furnace body to be welded on the hollow rotating disk, and then fix the single crystal furnace body by extending four electric telescopic rods and cooperating with the clamping plate. Then, place the ring to be welded on the top of the single crystal furnace body, start the cylinder extension to drive the lower sleeve to move down and abut against the top surface of the hollow rotating disk. As the cylinder continues to extend, the slider moves down in the slide groove, and then drives the bearing to move down. The downward movement of the bearing pushes the first spring telescopic rod at the lower end of the pressure rod to squeeze the hinge plate to deflect, and then push the L-shaped card plate to move to the side away from the pressure rod, and support it on the inner wall 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, which is convenient for subsequent welding.

[0019] S2: During the downward movement of the bearing, the spring telescopic pull rod pulls the hinged connecting plate to deflect, so that the inner clamping plate moves toward the axis of the upper sleeve, driving the auxiliary clamping wheel on the inner clamping plate to contact the ring, and at this time, one end of the second welding machine on the lower end of the inner clamping plate overlaps the overlap between the ring and the outer side of the single crystal furnace body;

[0020] Then, the rotating motor is started to drive the cylinder to rotate counterclockwise, so that the slider drives the hinged connecting plate on the outer ring of the bearing to rotate counterclockwise, and the inner clamping plate drives the second welding machine to rotate counterclockwise to weld the overlap between the ring and the outer side of the single crystal furnace body;

[0021] S3: When the welding of the overlap between the ring and the outer side of the single crystal furnace body is completed, the cylinder continues to extend to drive the bearing downward, so that the first spring telescopic rod at the lower end of the pressure rod contracts and moves to the bottom of a hinged plate on the lower side. At this time, the upper hinged plate deflects and pulls the L-shaped clamping plate to separate from the inner wall of the single crystal furnace body under the action of the reset force of the reset spring telescopic rod, and the reset of the L-shaped clamping plate squeezes the toothed plate away from the upper sleeve, so that the toothed plate pushes the gear to rotate clockwise, pulling the first welding machine on the other toothed plate to move toward the inner wall of the single crystal furnace body and abut against the inner wall of the single crystal furnace body;

[0022] When the bearing moves downward, the spring telescopic rod is pulled to extend and deflect to squeeze the upper end of the deflection plate, so that the deflection plate is deflected and abuts against the upper end of the third spring telescopic rod, driving the third spring telescopic rod to compress and make the movable flat gear move downward and engage with the fixed flat gear, limiting the rotation of the auxiliary clamping wheel, and then the auxiliary clamping wheel on the inner clamping plate is driven by the rotating motor to rotate clockwise, driving the welded ring and the single crystal furnace body to rotate clockwise, and the first welding machine is used to weld the overlap between the ring and the inner support of the single crystal furnace body, that is, the equipment completes the welding of the ring and the inner and outer sides of the single crystal furnace body.

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

[0024] In the present invention, the lower sleeve is driven 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 slide downward in the slide groove, thereby driving the bearing downward. The downward movement of the bearing pushes the first spring telescopic rod at the lower end of the pressure rod to squeeze the hinge plate to deflect, thereby pushing the L-shaped clamping plate to move to the side away from the pressure rod, and is supported 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, which is convenient for subsequent welding.

[0025] In the present invention, the hinged connecting plate is deflected by pulling the spring telescopic pull rod, so that the inner clamping plate moves toward the axial center line of the upper sleeve, driving the auxiliary clamping wheel on the inner clamping plate to contact the ring, and at this time, one end of the second welding machine on the lower end of the inner clamping plate overlaps the overlap between the ring and the outer side of the single crystal furnace body; starting the rotating motor drives the cylinder to rotate counterclockwise, so that the slider drives the hinged 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 overlap 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 rod is pulled to extend and deflect to squeeze the upper end of the deflection plate, so that the deflection plate is deflected and abuts against the upper end of the third spring telescopic rod, driving the third spring telescopic rod to compress and make the movable flat gear move downward and engage with the fixed flat gear, limiting the rotation of the auxiliary clamping wheel, and then the auxiliary clamping wheel on the inner clamping plate is driven by the rotating motor to rotate clockwise, driving the welded ring and the single crystal furnace body to rotate clockwise, and the overlap between the ring and the inner support of the single crystal furnace body is welded by the first welding machine, that is, the equipment completes the welding of the ring and the inner and outer sides of the single crystal furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0029] Figure 3 It 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 cross-sectional view of the bearing of the present invention;

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

[0032] Figure 6 For the present invention Figure 5 A magnified view of the structure at center;

[0033] Figure 7It is a schematic diagram of the three-dimensional structure of the movable flat gear and the deflection plate of the present invention;

[0034] Figure 8 It is a three-dimensional structural cross-sectional view of the auxiliary clamping wheel of the present invention.

[0035] In the figure: 1, placement seat; 2, hollow rotating disk; 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, slide groove; 83, slider; 84, bearing; 85, pressure rod; 86, first spring telescopic rod; 87, lower sleeve; 88, hinged plate; 89, L-shaped clamping plate; 810, slide rail; 811, tooth plate; 812, gear; 813, first welding machine; 814, second spring telescopic rod; 815, reset spring telescopic rod; 9, outer side support welding mechanism; 91, hinged 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 flat gear; 98, moving flat gear; 99, deflection plate; 10, inclined plate. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 8 The present invention provides a technical solution: an automated welding device for a single crystal furnace, comprising a placement seat 1, a hollow rotating disk 2 is rotatably connected to the middle of the top surface of the placement seat 1, four electric telescopic rods 3 are fixedly connected to the hollow rotating disk 2 in an annular shape at equal distances, and a clamping plate 4 is fixedly connected to one end of the electric telescopic rod 3;

[0038] An L-shaped plate 5 is fixedly connected to the rear side of the top surface of the placement seat 1, and 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, and an inner support welding mechanism 8 is fixedly connected to the cylinder 7. 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 cooperation with the outer support welding mechanism 9. 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 cooperation with the inner support welding mechanism 8.

[0039] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4, Figure 5 As shown, the inner support welding mechanism 8 includes an upper sleeve 81 sleeved on the telescopic end of the cylinder 7, and four equally spaced slide grooves 82 are opened on the side of the upper sleeve 81. A slider 83 is slidably connected in the slide groove 82, and 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. The lower end of the pressure rod 85 is fixedly connected to 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 the lower sleeve 87, and the lower end of the lower sleeve 87 is adhered with a non-slip rubber sheet to prevent the lower sleeve 87 from rotating on the top surface of the placement seat 1, and the lower sleeve 87 passes through the hollow rotating disk 2 and abuts on the top surface of the placement seat 1, and the outer wall of the lower sleeve 87 is hinged with two parallel hinged plates 88, and the two hinged plates 88 are hinged with an L-shaped clamping plate 89 at one end away from the lower sleeve 87, and the lower hinged plate 88 abuts against one end of the first spring telescopic rod 86, and a return spring telescopic rod 815 is hinged on the upper hinged plate 88, and the return spring telescopic rod 815 is hinged on the lower sleeve 87 at one end away from the upper hinged plate 88.

[0041] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the inner support welding mechanism 8 also includes a slide rail 810 fixed on the lower sleeve 87, and two tooth plates 811 are arranged 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 the tooth plate 811 close to the lower sleeve 87, and a second spring telescopic rod 814 is also fixedly connected to the tooth plate 811 close to the lower sleeve 87, and one end of the second spring telescopic rod 814 away from the tooth plate 811 is fixed to the slide rail 810;

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

[0043] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8As shown, the outer supporting welding mechanism 9 includes two parallel hinged connecting plates 91 hinged on the outer wall of the upper sleeve 81, and both sides of the upper hinged connecting plate 91 are hinged with spring telescopic pull rods 92, and one end of the spring telescopic pull rod 92 away from the hinged connecting plate 91 is hinged on the outer ring of the bearing 84;

[0044] The two hinged connecting plates 91 are hingedly connected to an inner clamping plate 93 at one end away from the upper sleeve 81, and the lower end of the inner clamping plate 93 is fixedly connected to a second welding machine 94;

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

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

[0047] In this embodiment, Figure 1 As shown, both sides of the L-shaped plate 5 are fixedly connected with inclined plates 10 , and one end of the inclined plate 10 away from the L-shaped plate 5 is fixed on the top surface of the placement seat 1 .

[0048] In this embodiment, Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the L-shaped clamping plate 89 is composed of a curved plate and a horizontal plate, and an anti-slip rubber sheet is bonded to the curved surface of the curved plate.

[0049] In this embodiment, Figure 3 , Figure 4 As shown, the lower end of the slider 83 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 slide groove 82.

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

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

[0052] S1: Place the single crystal furnace body to be welded on the hollow rotating disk 2, and then fix the single crystal furnace body by extending the four electric telescopic rods 3 and cooperating with the clamping plate 4. Then, after placing the ring to be welded on the top of the single crystal furnace body, start the cylinder 7 to extend and drive 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, it drives the slider 83 to slide downward in the slide groove 82, thereby driving the bearing 84 to move downward. The downward movement of the bearing 84 pushes the first spring telescopic rod 86 at the lower end of the pressure rod 85 to squeeze the hinge plate 88 to deflect, thereby pushing the L-shaped card plate 89 to move to the side away from the pressure rod 85, and is supported on the inner wall 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, which is convenient for subsequent welding.

[0053] S2: During the downward movement of the bearing 84, the spring telescopic pull rod 92 pulls the hinged connecting plate 91 to deflect, so that the inner clamping plate 93 moves toward the axis of the upper sleeve 81, driving the auxiliary clamping wheel 96 on the inner clamping plate 93 to contact the ring, and at this time, one end of the second welding machine 94 on the lower end of the inner clamping plate 93 overlaps the overlap between the ring and the outer side of the single crystal furnace body;

[0054] Then, the rotating motor 6 is started to drive the cylinder 7 to rotate counterclockwise, so that the slider 83 drives the hinged connecting plate 91 on the outer ring of the bearing 84 to rotate counterclockwise, and the inner clamping plate 93 drives the second welding machine 94 to rotate counterclockwise to weld the overlap between the ring and the outer side of the single crystal furnace body;

[0055] S3: After the welding of the overlap 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 to the bottom of a hinged plate 88 on the lower side. At this time, the upper hinged plate 88 is deflected and pulled to separate the L-shaped card plate 89 from the inner wall of the single crystal furnace body under the action of the reset force of the reset spring telescopic rod 815, and the toothed plate 811 away from the upper sleeve 81 is pressed by the reset of the L-shaped card plate 89, so that the toothed plate 811 pushes the gear 812 to rotate clockwise, pulling the first welding machine 813 on the other toothed plate 811 to move toward 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 rod 92 is pulled to extend and deflect to squeeze the upper end of the deflection plate 99, so that the deflection plate 99 is deflected and abuts against the upper end of the third spring telescopic rod 95, driving the third spring telescopic rod 95 to compress and make the movable flat gear 98 move downward and engage with the fixed flat gear 97, limiting the rotation of the auxiliary clamping wheel 96, and then driving the auxiliary clamping wheel 96 on the inner clamping plate 93 to rotate clockwise through the rotating motor 6, driving the welded ring and the single crystal furnace body to rotate clockwise, and the first welding machine 813 is used to weld the overlap between the ring and the inner and outer sides of the single crystal furnace body, that is, the equipment completes the welding of the ring and the inner and outer sides of the single crystal furnace body.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions 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 may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automated welding device for a single crystal furnace, comprising a placement seat (1), characterized in that: A hollow rotating disk (2) is rotatably connected to the middle of the top surface of the placement seat (1), four electric telescopic rods (3) are fixedly connected to the hollow rotating disk (2) in a ring shape at equal distances, and a clamping plate (4) is fixedly connected to one end of the electric telescopic rod (3); 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), 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 cooperation 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 cooperation with the inner support welding mechanism (8).

2. The automatic welding equipment for a single crystal furnace according to claim 1, characterized in that: The inner supporting welding mechanism (8) comprises an upper sleeve (81) sleeved on the telescopic end of the cylinder (7), four equally spaced slide grooves (82) are provided on the side surface of the upper sleeve (81), a slider (83) is slidably connected in the slide 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), 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 a 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 one end of the return spring telescopic rod (815) away from the upper hinge plate (88) is hinged to the lower sleeve (87).

3. The automatic welding equipment for a single crystal furnace according to claim 2, characterized in that: The inner supporting welding mechanism (8) also includes a slide rail (810) fixed on the lower sleeve (87), two tooth plates (811) are arranged on the slide rail (810) in a slidable manner 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 tooth plates (811) away from the lower sleeve (87) is on the same vertical plane as one of the L-shaped clamping plates (89).

4. The automatic welding equipment for a single crystal furnace according to claim 3, characterized in that: The outer supporting welding mechanism (9) comprises two parallel hinged connecting plates (91) hinged on the outer wall of the upper sleeve (81), both sides of the upper hinged connecting plate (91) are hinged with spring telescopic pull rods (92), and one end of the spring telescopic pull rod (92) away from the hinged connecting plate (91) is hinged on the outer ring of the bearing (84); One end of the two hinged connecting plates (91) away from the upper sleeve (81) is hingedly connected with an inner clamping plate (93), and the lower end of the inner clamping plate (93) is fixedly connected with a second welding machine (94); A third spring telescopic rod (95) is fixedly connected to the side of the inner clamping plate (93) facing the upper sleeve (81); an auxiliary clamping wheel (96) is rotatably sleeved on the outer sleeve of the third spring telescopic rod (95); a fixed flat gear (97) is fixedly connected to the upper end surface of the auxiliary clamping wheel (96); a movable flat gear (98) is fixedly sleeved on the inner rod of the third spring telescopic rod (95); and the teeth of the movable flat gear (98) are arranged opposite to the teeth of the fixed flat gear (97); A deflection plate (99) is hingedly connected to the hinged connecting plate (91), and the lower end of the deflection plate (99) is on the upper side of the moving flat gear (98).

5. The automatic welding equipment for a single crystal furnace according to claim 1, characterized in that: The left and right sides of the L-shaped plate (5) are both fixedly connected with inclined plates (10), and one end of the inclined plate (10) away from the L-shaped plate (5) is fixed on the top surface of the placement seat (1).

6. The automatic welding equipment for a single crystal furnace according to claim 2, characterized in that: The L-shaped clamping plate (89) is composed of a curved plate and a transverse plate, and a non-slip rubber sheet is bonded to the curved surface of the curved plate.

7. The automatic welding equipment for a single crystal furnace according to claim 2, characterized in that: The lower end of the sliding block (83) is fixedly connected to a return spring telescopic plate, and the lower end of the return spring telescopic plate is fixed to the bottom surface of the inner wall of the sliding groove (82).

8. The method for using the automatic welding equipment of a single crystal furnace according to claim 4, characterized in that: The steps include: 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, then place the ring to be welded on the top of the single crystal furnace body, start the cylinder (7) to extend and drive the lower sleeve (87) to move downward and contact the top surface of the hollow rotating disk (2), and as the cylinder (7) continues to extend, the slider (83) is driven to slide downward in the slide groove (82), thereby driving the bearing (84) to move downward, and the first spring telescopic rod (86) at the lower end of the pressure rod (85) is pushed by the downward movement of the bearing (84) to squeeze the hinge plate (88) to deflect, thereby pushing the L-shaped clamping plate (89) to move to the side away from the pressure rod (85), and supporting it on the inner wall of the ring and the single crystal furnace body, so as to ensure that the central axis of the ring is coaxial with the central axis of the single crystal furnace body, so as to facilitate subsequent welding; S2: During the downward movement of the bearing (84), the spring telescopic pull rod (92) pulls the hinged connecting plate (91) to deflect, so that the inner clamping plate (93) moves toward the axis line of the upper sleeve (81), driving the auxiliary clamping wheel (96) on the inner clamping plate (93) to contact the ring, and at this time, one end of the second welding machine (94) on the lower end of the inner clamping plate (93) overlaps the overlap between the ring and the outer side of the single crystal furnace body; Then, the rotating motor (6) is started to drive the cylinder (7) to rotate counterclockwise, so that the slider (83) drives the hinged connecting plate (91) on the outer ring of the bearing (84) to rotate counterclockwise, and the inner clamping plate (93) drives the second welding machine (94) to rotate counterclockwise to weld the overlap between the ring and the outer side of the single crystal furnace body; S3: After the welding of the overlap 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 to the bottom of a lower hinged plate (88). At this time, the upper hinged plate (88) is deflected and pulled to separate the L-shaped clamping plate (89) from the inner wall of the single crystal furnace body under the action of the reset force of the reset spring telescopic rod (815), and the toothed plate (811) is pressed away from the upper sleeve (81) by the reset of the L-shaped clamping plate (89), so that the toothed plate (811) pushes the gear (812) to rotate clockwise, pulling the first welding machine (813) on the other toothed plate (811) to move toward the inner wall of the single crystal furnace body and abut against the inner wall of the single crystal furnace body; When the bearing (84) moves downward, the spring telescopic rod (92) is pulled to extend and deflect to squeeze the upper end of the deflection plate (99), so that the deflection plate (99) is deflected and contacts the upper end of the third spring telescopic rod (95), driving the third spring telescopic rod (95) to compress and make the movable flat gear (98) move downward to engage with the fixed flat gear (97), limiting the rotation of the auxiliary clamping wheel (96), and then driving the auxiliary clamping wheel (96) on the inner clamping plate (93) to rotate clockwise through the rotating motor (6), driving the welded ring and the single crystal furnace body to rotate clockwise, and welding the overlap 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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