A welding device and method for centrifuge production

Abstract

The invention discloses a welding device and method for centrifuge production, belonging to the technical field of centrifuge processing, comprising a bottom bracket and two pressing plates, both sides of the bottom bracket are fixedly connected with side supports, a first movable adjustment mechanism is arranged inside the side support, and an intermediate seat is arranged outside the first movable adjustment mechanism; in the invention, a connecting seat, an elastic telescopic rod, a pressing plate, a push plate, an extrusion rod and a pressing block are adopted, and the pressing plate automatically extrudes and limits the plate to be welded during the downward movement of the pressing plate, and the extrusion rod at the corresponding position of the welding assembly will squeeze the contact ball, the sliding rod and the push plate to move, the push plate squeezes the pressing block to swing downward, and the downward rotation of the pressing block presses down the plate surface to be welded part, and the pressing of the plate surface to be welded can avoid the bending caused by the temperature gradient of the upper and lower parts of the plate at the welding position by pressing the plate to be welded, so that the welding process can be more stable and accurate, and the plate welding process is guaranteed to be more efficient and safe.

Description

Technical Field

[0001] The invention belongs to the technical field of centrifuge processing, and in particular relates to a welding device and a method for producing a centrifuge. Background Art

[0002] In the production process of centrifuges, in order to meet its structural strength and use requirements, plate splicing is an indispensable link. In this link, we usually use welding technology to connect plates of different sizes; However, existing welding technology has certain problems when processing long strip welds. Specifically, during the welding process, the upper surface of the weld (i.e., the area close to the weld) will expand thermally due to direct exposure to heat and shrink significantly after cooling. The degree of shrinkage is more severe than that of the lower surface. Since the lower surface is not directly exposed to heat, its deformation is relatively small. This uneven shrinkage causes the area above the weld to have a greater shrinkage intensity, causing the entire workpiece to bend in the welding direction, thereby affecting the welding quality.

[0003] Based on this, the present invention designs a welding device and method for centrifuge production to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that thermal expansion causes a large shrinkage after cooling, the shrinkage is more severe than that of the lower surface, and the deformation of the lower surface is relatively small because it is not directly in contact with the heat. This uneven shrinkage leads to a large shrinkage intensity in the area above the weld, causing the entire workpiece to bend in the welding direction. A welding device and method for centrifuge production are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A welding device for centrifuge production, comprising a bottom bracket and two pressing plates, both sides of the bottom bracket are fixedly connected with side supports, a first movable adjustment mechanism is arranged inside the side support, an intermediate seat is arranged outside the first movable adjustment mechanism, a second movable adjustment mechanism is fixedly connected between the two intermediate seats, a movable seat is arranged outside the second movable adjustment mechanism, a height adjustment component is penetrated through the movable seat, a connecting seat is installed outside the height adjustment component, a welding component is penetrated through the connecting seat, a sliding hole is provided on the pressing plate, a sliding control mechanism fixedly connected to the connecting seat is slidably connected in the sliding hole, support rods are fixedly connected to the front and rear sides of the two pressing plates, a sliding support mechanism arranged on the side supports is fixedly connected outside the support rods, a groove is provided on the pressing plate, a movable extrusion mechanism connected to the pressing plate is arranged in the groove, a flow cavity is provided in the pressing plate, a liquid inlet pipe communicating with the flow cavity is penetrated through the pressing plate, the other end of the liquid inlet pipe is connected with a connecting pump, and the back of the connecting pump is connected with a temperature-controlled water tank fixedly connected to the side of the side support.

[0006] As a further description of the above technical solution: The back of the temperature-controlled water tank is connected with a liquid outlet pipe, the other end of which is connected to the pressure plate and connected with the flow cavity, and the connecting positions of the liquid outlet pipe, the liquid inlet pipe and the flow cavity are respectively located at the front and rear sides.

[0007] As a further description of the above technical solution: A placing plate is fixedly connected to the bottom bracket, an electric hydraulic rod is fixedly connected to the side of the bottom bracket, and a movable clamping plate is fixedly connected to the end of the electric hydraulic rod.

[0008] As a further description of the above technical solution: The sliding control mechanism includes two first extension rods fixedly connected outside the connecting seat, the bottom end of the first extension rod is fixedly connected to an elastic telescopic rod, the bottom end of the elastic telescopic rod is fixedly connected to a sliding block, the sliding block is slidably connected in a sliding hole, the side of the elastic telescopic rod is fixedly connected to a second extension rod, and the bottom end of the second extension rod is fixedly connected to a cross plate.

[0009] As a further description of the above technical solution: Two cross bars are fixedly connected to one side of the cross plate close to the groove, and the other end of the cross bar is fixedly connected to an extrusion rod, which is arranged outside the movable extrusion mechanism, and the sliding block is arranged in a cross shape.

[0010] As a further description of the above technical solution: The movable extrusion mechanism includes a pressure block fixedly connected in the groove, a push plate is provided on the pressure block, a sliding rod is fixedly connected to the side of the push plate, a linear bearing is slidably connected outside the sliding rod, the linear bearing is fixedly connected to the pressure plate, and a contact ball is fixedly connected to the other end of the sliding rod.

[0011] As a further description of the above technical solution: The contact ball is set to be hemispherical, the sliding rod outer sleeve is provided with a first elastic component, the two ends of the first elastic component are respectively fixedly connected to the contact ball and the linear bearing, and the extrusion rod is slidably connected outside the contact ball.

[0012] As a further description of the above technical solution: The sliding support mechanism includes two fixed rods fixedly connected outside the side support, a first connecting sleeve is slidably connected outside the fixed rod, a first intermediate rod is fixedly connected between the two first connecting sleeves, a second connecting sleeve is slidably connected outside the first intermediate rod, a second intermediate rod is fixedly connected to the side of the second connecting sleeve close to the pressure plate, and the other end of the second intermediate rod is fixedly connected to the support rod.

[0013] As a further description of the above technical solution: The bottom end of the support rod is fixedly connected to the limiting plate, and the outer sleeve of the support rod is provided with a second elastic component, and the two ends of the second elastic component are respectively fixedly connected to the limiting plate and the opposite surfaces of the first connecting sleeve.

[0014] A method for welding a centrifuge production device, the method comprising the following steps: Directly place the two centrifuge plates to be welded on the placement plate, control the movable clamping plate to move and clamp the plates through the electric hydraulic rod, then control the height adjustment assembly and the welding assembly to operate, the height adjustment assembly controls the connection seat and the welding assembly to move downward, while the connection seat moves downward, the sliding hole and the pressing plate are squeezed downward by the elastic telescopic rod and the sliding block, and the pressing plate is pressed on the surface of the plate while moving downward, and the pressing plate is located on both sides of the welding assembly, and the two pressing plates are located outside the welding gap of the two plates, and the pressing plate is pressed on the plate during the downward movement, and the support rod drives the second intermediate rod, the second connecting sleeve, and the first connecting sleeve to slide downward along the fixed rod, and the temperature-controlled water tank controls the internal water temperature to rise; The connection pump flows high-temperature water into the flow chamber through the liquid inlet pipe. The heat in the high-temperature water flowing in the flow chamber contacts the plate part outside the welding gap, and heats the outer part of the welding gap of the welding material. The welding assembly is operated to perform welding treatment on the welding gap. At the same time, the extrusion rod moves to the corresponding position with the welding assembly, and the extrusion rod pushes the contact ball and the sliding rod to move. The sliding rod drives the push plate to move. The convex part of the push plate squeezes the pressing block to rotate downward. The pressing block has a downward movement trend, and the extrusion force on the welding part is greater. The welding part is heated from the upper side, and there is a temperature gradient between the lower and upper parts of the welding part of the weld. The pressing of the pressure block prevents the welding part from being obviously warped due to the temperature gradient. As the first moving adjustment mechanism controls the welding assembly to move forward, the sliding block slides in the sliding hole, and at the same time, the extrusion rod pushes the contact ball at the corresponding welding assembly position to move. In addition, since the plate is preheated, a large temperature difference between the weld and other parts during welding is avoided.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, a connecting seat, an elastic telescopic rod, a pressure plate, a push plate, an extrusion rod and a pressure block are adopted. When the welding assembly moves downward for welding, the pressure plate will be squeezed downward by the elastic telescopic rod. During the downward movement of the pressure plate, the plate to be welded will be automatically squeezed and limited, and the extrusion rod at the corresponding position of the welding assembly will squeeze the contact ball, the sliding rod and the push plate to move. The push plate squeezes the pressure block to swing downward, and the downward rotation of the pressure block presses down the surface of the plate to be welded. The pressing of the welding part can avoid the bending caused by the temperature gradient of the upper and lower parts of the plate at the welding position, so that the welding process can be achieved more stably and accurately, ensuring that the plate welding process is more efficient and safe.

[0016] 2. In the present invention, a sliding block, a sliding hole, a first connecting sleeve, a second connecting sleeve, a second elastic component and a fixed rod are used. The connecting seat controls the downward movement of the pressure plate through the sliding block, and ensures that the pressure plate remains stable in the vertical direction when the sliding block and the welding component move forward and backward. The elastic telescopic rod uses elastic force to control the downward movement of the pressure plate, and the welding component will maintain the pressing and positioning of the pressure plate on the plate when sliding in the forward and backward and left and right directions. As the welding assembly moves, the pressure blocks at different positions will be controlled to be squeezed downward, and the welding assembly will change flexibly.

[0017] 3. In the present invention, a connecting pump, a temperature-controlled water tank, a flow chamber, a liquid inlet pipe and a liquid outlet pipe are used. The temperature-controlled water tank can adjust the water temperature inside the device. The connecting pump allows high-temperature water to flow into the flow chamber through the liquid inlet pipe, so that the heat of the high-temperature water flowing in the flow chamber flows into the plate. After the plate is preheated, there will be no large temperature difference in the welding process of the welding assembly to the plate. The cooling process after welding will not experience rapid cooling due to the high-temperature water in the flow chamber, so that the plate will not bend due to the large temperature difference before and after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural schematic diagram of a centrifuge production welding device and method thereof proposed by the present invention; Figure 2 A rear perspective structural schematic diagram of a centrifuge production welding device and method thereof proposed by the present invention; Figure 3A schematic diagram of the three-dimensional structure of a press plate of a welding device and method for centrifuge production proposed by the present invention; Figure 4 A schematic diagram of the three-dimensional structure of a support rod of a welding device and method for centrifuge production proposed by the present invention; Figure 5 A schematic diagram of a three-dimensional cross-sectional structure of a pressing plate of a welding device and method for centrifuge production proposed by the present invention; Figure 6 A schematic diagram of the three-dimensional structure of a sliding control mechanism of a welding device and method for centrifuge production proposed by the present invention; Figure 7 A schematic diagram of the three-dimensional structure of a movable extrusion mechanism of a welding device and method for centrifuge production proposed by the present invention; Figure 8 A welding device and method for centrifuge production proposed by the present invention Figure 3 The enlarged structural diagram of part A in the middle; Fig. 9 The present invention is a schematic diagram of the three-dimensional structure of a sliding support mechanism of a welding device and method for centrifuge production.

[0019] Legend: 1. Bottom bracket; 2. Side support seat; 3. First movable adjustment mechanism; 4. Middle seat; 5. Second movable adjustment mechanism; 6. Moving seat; 7. Height adjustment assembly; 8. Connecting seat; 9. Welding assembly; 10. Pressing plate; 11. Sliding hole; 12. Sliding control mechanism; 121. First extension rod; 122. Elastic telescopic rod; 123. Sliding block; 124. Second extension rod; 125. Cross plate; 126. Cross bar; 127. Extrusion rod; 13. Movable extrusion mechanism; 131. Push plate; 132. Pressing block; 133. Sliding control mechanism Moving rod; 134, contact ball; 135, linear bearing; 136, first elastic component; 14, support rod; 15, sliding support mechanism; 151, fixed rod; 152, first connecting sleeve; 153, first intermediate rod; 154, second connecting sleeve; 155, second intermediate rod; 156, limit plate; 157, second elastic component; 16, groove; 17, flow cavity; 18, liquid inlet pipe; 19, connecting pump; 20, temperature-controlled water tank; 21, liquid outlet pipe; 22, electric hydraulic rod; 23, movable splint; 24, placement plate. DETAILED DESCRIPTION

[0020] 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 technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Please see attached Figure 1 -Attached Fig. 9 The present invention provides a technical solution: a welding device for centrifuge production, comprising a bottom bracket 1 and two pressing plates 10, both sides of the bottom bracket 1 are fixedly connected with side supports 2, a first movable adjustment mechanism 3 is arranged inside the side support 2, the first movable adjustment mechanism 3 is arranged outside the middle seat 4, a second movable adjustment mechanism 5 is fixedly connected between the two middle seats 4, the second movable adjustment mechanism 5 is arranged outside the movable seat 6, a height adjustment component 7 is penetrated on the movable seat 6, a connecting seat 8 is installed outside the height adjustment component 7, a welding component 9 is penetrated and connected on the connecting seat 8, a sliding hole 11 is opened on the pressing plate 10, and the sliding hole 11 1 is slidably connected with a sliding control mechanism 12 fixedly connected to the connecting seat 8, the front and rear sides of the two pressing plates 10 are fixedly connected with support rods 14, and the sliding support mechanism 15 arranged on the side support seat 2 is fixedly connected outside the support rods 14. A groove 16 is provided on the pressing plate 10, and a movable extrusion mechanism 13 connected to the pressing plate 10 is provided in the groove 16. A flow cavity 17 is provided in the pressing plate 10, and a liquid inlet pipe 18 connected to the flow cavity 17 is penetrated and connected to the pressing plate 10. The other end of the liquid inlet pipe 18 is connected to a connecting pump 19, and the back of the connecting pump 19 is connected to a temperature control water tank 20 fixedly connected to the side of the side support seat 2.

[0022] The water in the temperature-controlled water tank 20 is sucked by the connecting pump 19, and the water in the flow chamber 17 exchanges heat with the plate to adjust the plate temperature, thereby avoiding excessive temperature changes during welding and preventing the plate temperature from dropping too quickly after welding. The first moving adjustment mechanism 3 and the second moving adjustment mechanism 5 control the connection seat 8 and the welding assembly 9 to adjust their positions, so as to facilitate the control of the welding assembly 9 to move and weld along the weld seam of the plate; Specifically, Figure 1-2 and Figure 5 As shown, the back of the temperature-controlled water tank 20 is connected to a liquid outlet pipe 21, the other end of which penetrates and is connected to the pressure plate 10 and is connected to the flow chamber 17, and the connecting positions of the liquid outlet pipe 21, the liquid inlet pipe 18 and the flow chamber 17 are located at the front and rear sides respectively.

[0023] Specifically, Figure 1As shown, a placement plate 24 is fixedly connected to the bottom bracket 1 , an electric hydraulic rod 22 is fixedly connected to the side of the bottom bracket 1 , and a movable clamping plate 23 is fixedly connected to the end of the electric hydraulic rod 22 .

[0024] The electric hydraulic rod 22 controls the movable clamping plate 23 to move in the horizontal direction. The movable clamping plate 23 can clamp and limit the plate to be welded to keep the plate stable. Specifically, Figure 3 and Figure 6 As shown, the sliding control mechanism 12 includes two first extension rods 121 fixedly connected to the outside of the connecting seat 8, the bottom end of the first extension rod 121 is fixedly connected to an elastic telescopic rod 122, the bottom end of the elastic telescopic rod 122 is fixedly connected to a sliding block 123, the sliding block 123 is slidably connected in the sliding hole 11, the side of the elastic telescopic rod 122 is fixedly connected to a second extension rod 124, and the bottom end of the second extension rod 124 is fixedly connected to a cross plate 125.

[0025] Two cross bars 126 are fixedly connected to one side of the cross plate 125 close to the groove 16 , and the other end of the cross bar 126 is fixedly connected to an extrusion rod 127 . The extrusion rod 127 is arranged outside the movable extrusion mechanism 13 , and the sliding block 123 is arranged in a cross shape.

[0026] The cross-shaped sliding block 123 will not be separated from the sliding hole 11. The sliding block 123 slides in the sliding hole 11, which is convenient for the sliding block 123 to control the pressing plate 10 to move vertically through the sliding hole 11, and does not affect the sliding block 123 and the welding assembly 9 to move forward and backward. The elastic telescopic rod 122 can use its own elastic force to control the pressing plate 10 to move downward to press the plate, and the elastic telescopic rod 122 itself can be extended to a certain extent. After the pressing plate 10 presses the plate, the welding assembly 9 can still move vertically to a certain extent. Specifically, Figure 6-8 As shown, the movable extrusion mechanism 13 includes a pressure block 132 fixedly connected in the groove 16, a push plate 131 is provided on the pressure block 132, a sliding rod 133 is fixedly connected to the side of the push plate 131, a linear bearing 135 is slidably connected outside the sliding rod 133, the linear bearing 135 is fixedly connected to the pressure plate 10, and a contact ball 134 is fixedly connected to the other end of the sliding rod 133.

[0027] The contact ball 134 is set to be hemispherical, and the sliding rod 133 is outer-mounted with a first elastic component 136. The two ends of the first elastic component 136 are respectively fixedly connected to the contact ball 134 and the linear bearing 135, and the extrusion rod 127 is slidably connected to the outside of the contact ball 134.

[0028] The extrusion rod 127 and the contact ball 134 are used. The extrusion rod 127 will squeeze the contact ball 134 as the welding assembly 9 moves in the front-back direction. When the welding assembly 9 moves, the contact ball 134 and the pressure block 132 at the corresponding position will be controlled to move. The linear bearing 135 ensures that the sliding rod 133 and the push plate 131 move stably in a straight line, so that the push plate 131 moves stably close to and away from the pressure block 132. The first elastic component 136 applies elastic force to the sliding rod 133 to ensure that the push plate 131 can be automatically controlled to move away from the pressure block 132 after the extrusion rod 127 is separated from the contact ball 134. Specifically, Figure 3 and Fig. 9 As shown, the sliding support mechanism 15 includes two fixed rods 151 fixedly connected to the outside of the side support 2, a first connecting sleeve 152 is slidably connected to the outside of the fixed rod 151, a first intermediate rod 153 is fixedly connected between the two first connecting sleeves 152, a second connecting sleeve 154 is slidably connected to the outside of the first intermediate rod 153, a second intermediate rod 155 is fixedly connected to the side of the second connecting sleeve 154 close to the pressure plate 10, and the other end of the second intermediate rod 155 is fixedly connected to the support rod 14.

[0029] The bottom end of the support rod 14 is fixedly connected to the limit plate 156 , and the outer sleeve of the support rod 14 is provided with a second elastic component 157 , and the two ends of the second elastic component 157 are fixedly connected to the limit plate 156 and the opposite surface of the first connecting sleeve 152 .

[0030] The fixing rod 151 guides and limits the first connecting sleeve 152 and the pressure plate 10 in the vertical direction, so that the pressure plate 10 can move stably. After the pressure plate 10 loses the upper pressure, the second elastic component 157 can control the pressure plate 10 to automatically reset upward. The second connecting sleeve 154 can slide on the surface of the first intermediate rod 153, so that the pressure plate 10 can move left and right along with the welding component 9. The pressure plate 10 can move stably to both sides of the corresponding welding gap.

[0031] A method for producing a welding device for a centrifuge, the method comprising the following steps: Directly place the two centrifuge plates to be welded on the placement plate 24, control the movable clamping plate 23 to move and clamp the plates through the electric hydraulic rod 22, and then control the height adjustment component 7 and the welding component 9 to operate. The height adjustment component 7 controls the connecting seat 8 and the welding component 9 to move downward. When the connecting seat 8 moves downward, the sliding hole 11 and the pressing plate 10 are squeezed downward by the elastic telescopic rod 122 and the sliding block 123. When the pressing plate 10 moves downward, it presses on the surface of the plate. At the same time, the pressing plate 10 is located on both sides of the welding component 9. At the same time, the two pressing plates 10 are located outside the welding gap of the two plates. During the downward movement of the pressing plate 10, it presses on the plate. At the same time, the support rod 14 drives the second intermediate rod 155, the second connecting sleeve 154, and the first connecting sleeve 152 to slide downward along the fixed rod 151. At the same time, the temperature control water tank 20 controls the internal water temperature to rise. The connection pump 19 flows high-temperature water into the flow chamber 17 through the liquid inlet pipe 18. The heat in the high-temperature water circulating in the flow chamber 17 contacts the plate part outside the welding gap, and heats the outer part of the welding gap of the welding material. The welding assembly 9 is operated to perform welding processing on the welding gap. At the same time, the extrusion rod 127 moves to the corresponding position with the welding assembly 9. The extrusion rod 127 pushes the contact ball 134 and the sliding rod 133 to move. The sliding rod 133 drives the push plate 131 to move. The convex part of the push plate 131 squeezes the pressing block 132 to rotate downward. The pressing block 132 has a downward movement trend, and the extrusion force on the welded part is greater. The welding part is heated from the upper side, and there is a temperature gradient between the lower and upper parts of the welding part of the weld. The pressing of the pressing block 132 prevents the welding part from being obviously warped due to the temperature gradient. As the first moving adjustment mechanism 3 controls the welding assembly 9 to move forward, the sliding block 123 slides in the sliding hole 11, and at the same time the extrusion rod 127 pushes the contact ball 134 corresponding to the position of the welding assembly 9 to move. In addition, since the plate is preheated, a large temperature difference between the weld and other parts during welding is avoided.

[0032] 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 welding device for centrifuge production, comprising a bottom bracket (1) and two pressing plates (10), characterized in that: Both sides of the bottom bracket (1) are fixedly connected to side supports (2), a first movable adjustment mechanism (3) is provided inside the side support (2), an intermediate seat (4) is provided outside the first movable adjustment mechanism (3), a second movable adjustment mechanism (5) is fixedly connected between the two intermediate seats (4), a movable seat (6) is provided outside the second movable adjustment mechanism (5), a height adjustment component (7) is passed through the movable seat (6), a connecting seat (8) is installed outside the height adjustment component (7), a welding component (9) is passed through the connecting seat (8), a sliding hole (11) is opened on the pressing plate (10), a sliding control component (11) fixedly connected to the connecting seat (8) is slidably connected inside the sliding hole (11). The control mechanism (12) comprises a control mechanism (12), the front and rear sides of the two pressing plates (10) are fixedly connected to support rods (14), the support rods (14) are fixedly connected to a sliding support mechanism (15) arranged on the side support seat (2), the pressing plate (10) is provided with a groove (16), the groove (16) is provided with a movable squeezing mechanism (13) connected to the pressing plate (10), the pressing plate (10) is provided with a flow cavity (17), the pressing plate (10) is connected with a liquid inlet pipe (18) communicating with the flow cavity (17), the other end of the liquid inlet pipe (18) is connected to a connecting pump (19), and the back of the connecting pump (19) is connected to a temperature control water tank (20) fixedly connected to the side of the side support seat (2).

2. A centrifuge production welding device according to claim 1, characterized in that: The back of the temperature-controlled water tank (20) is connected to a liquid outlet pipe (21), the other end of the liquid outlet pipe (21) penetrates and is connected to the pressure plate (10) and is connected to the flow chamber (17), and the connection positions of the liquid outlet pipe (21) and the liquid inlet pipe (18) and the flow chamber (17) are located at the front and rear sides respectively.

3. A centrifuge production welding device according to claim 1, characterized in that: A placement plate (24) is fixedly connected to the bottom bracket (1), an electric hydraulic rod (22) is fixedly connected to the side of the bottom bracket (1), and a movable clamping plate (23) is fixedly connected to the end of the electric hydraulic rod (22).

4. A centrifuge production welding device according to claim 1, characterized in that: The sliding control mechanism (12) comprises two first extension rods (121) fixedly connected to the outside of the connecting seat (8); the bottom end of the first extension rod (121) is fixedly connected to an elastic telescopic rod (122); the bottom end of the elastic telescopic rod (122) is fixedly connected to a sliding block (123); the sliding block (123) is slidably connected in the sliding hole (11); the side of the elastic telescopic rod (122) is fixedly connected to a second extension rod (124); the bottom end of the second extension rod (124) is fixedly connected to a transverse plate (125).

5. A centrifuge production welding device according to claim 4, characterized in that: Two cross bars (126) are fixedly connected to one side of the cross plate (125) close to the groove (16); the other end of the cross bar (126) is fixedly connected to an extrusion rod (127); the extrusion rod (127) is arranged outside the movable extrusion mechanism (13); and the sliding block (123) is arranged in a cross shape.

6. A centrifuge production welding device according to claim 5, characterized in that: The movable squeezing mechanism (13) comprises a pressing block (132) fixedly connected in the groove (16); a push plate (131) is provided on the pressing block (132); a sliding rod (133) is fixedly connected to the side of the push plate (131); a linear bearing (135) is slidably connected to the outside of the sliding rod (133); the linear bearing (135) is fixedly connected to the pressing plate (10); and a contact ball (134) is fixedly connected to the other end of the sliding rod (133).

7. A centrifuge production welding device according to claim 6, characterized in that: The contact ball (134) is designed to be hemispherical, the sliding rod (133) is provided with a first elastic component (136) on its outer sleeve, the two ends of the first elastic component (136) are respectively fixedly connected to the contact ball (134) and the linear bearing (135), and the extrusion rod (127) is slidably connected to the outside of the contact ball (134).

8. A centrifuge production welding device according to claim 1, characterized in that: The sliding support mechanism (15) comprises two fixed rods (151) fixedly connected to the outside of the side support (2); a first connecting sleeve (152) is slidably connected to the outside of the fixed rod (151); a first intermediate rod (153) is fixedly connected between the two first connecting sleeves (152); a second connecting sleeve (154) is slidably connected to the outside of the first intermediate rod (153); a second intermediate rod (155) is fixedly connected to the side of the second connecting sleeve (154) close to the pressure plate (10); and the other end of the second intermediate rod (155) is fixedly connected to the support rod (14).

9. A centrifuge production welding device according to claim 8, characterized in that: The bottom end of the support rod (14) is fixedly connected to a limit plate (156), the outer sleeve of the support rod (14) is provided with a second elastic component (157), and the two ends of the second elastic component (157) are respectively fixedly connected to the limit plate (156) and the opposite surface of the first connecting sleeve (152).

10. A method for producing a welding device for a centrifuge, characterized in that: According to a centrifuge production welding device according to any one of claims 1 to 9, the method comprises the following steps: Two centrifuge plates to be welded are directly placed on the placement plate (24), and the movable clamping plate (23) is controlled to move by the electric hydraulic rod (22) to clamp and limit the plates. Then, the height adjustment component (7) and the welding component (9) are controlled to operate. The height adjustment component (7) controls the connecting seat (8) and the welding component (9) to move downward. When the connecting seat (8) moves downward, the sliding hole (11) and the pressing plate (10) are squeezed downward by the elastic telescopic rod (122) and the sliding block (123). When the pressing plate (10) moves downward, it presses on the surface of the plate. At the same time, the pressing plate (10) is located on both sides of the welding component (9). At the same time, the two pressing plates (10) are located outside the welding gap of the two plates. When the pressing plate (10) moves downward, it presses on the plate. At the same time, the support rod (14) drives the second intermediate rod (155), the second connecting sleeve (154), and the first connecting sleeve (152) to slide downward along the fixed rod (151). At the same time, the temperature control water tank (20) controls the internal water temperature to rise. The connecting pump (19) flows high-temperature water into the flow chamber (17) through the liquid inlet pipe (18). The heat in the high-temperature water flowing in the flow chamber (17) contacts the plate portion outside the welding gap, and heats the outer portion of the welding gap of the welding material. The welding assembly (9) is operated to perform welding processing on the welding gap. At the same time, the extrusion rod (127) moves to the corresponding position along with the welding assembly (9). The extrusion rod (127) pushes the contact ball (134) and the sliding rod (133) to move. The sliding rod (133) drives the push plate (131) to move. The protruding portion of the push plate (131) squeezes the pressing block (132) to rotate downward. The pressing block (132) has a tendency to move downward, and the extrusion force on the welded portion is greater. The welding part is heated from the upper side, and there is a temperature gradient between the lower side and the upper side of the welding part of the weld. The pressing of the pressing block (132) prevents the welding part from being obviously warped due to the temperature gradient. When the first moving adjustment mechanism (3) controls the welding assembly (9) to move forward, the sliding block (123) slides in the sliding hole (11), and the extrusion rod (127) pushes the contact ball (134) corresponding to the position of the welding assembly (9) to move. Since the plate is preheated, a large temperature difference between the welding part and other parts during the welding process is avoided.

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