Ignition chamber welding fixture

Abstract

The present invention belongs to the field of quartz product processing, and in particular relates to an ignition chamber welding fixture, comprising a base, on which two supporting assemblies 1 are provided for limiting the position of the ignition chamber main tube and are distributed front and back, the front supporting assembly 1 is provided with a supporting assembly 2 for supporting and limiting the front connecting tube and a clamping assembly for pressing the front end edge of the ignition chamber main tube, the front supporting assembly 1 is provided with a limiting assembly for auxiliary limiting the front connecting tube, the upper side of the base is provided with a supporting assembly 3 for supporting and limiting the rear connecting tube, and a docking drive assembly is provided between the base, the supporting assembly 3 and the front supporting assembly 1. The supporting assembly 1 includes a supporting ring plate provided above the base. The present invention reduces the pressure on the side wall of the ignition chamber main tube, prevents wear during docking, and can ensure the stability of the ignition chamber main tube itself and the clamping between the ignition chamber main body and the front connecting tube.

Description

Technical Field

[0001] The invention belongs to the field of quartz product processing, and in particular relates to an ignition chamber welding fixture. Background Art

[0002] A quartz ignition chamber is a component used to implement ignition in specific equipment. It is typically made of quartz and features sealing, pressure resistance, light transmittance, and thermal insulation properties. It is primarily used in the semiconductor manufacturing industry.

[0003] The quartz ignition chamber is mainly composed of the ignition chamber main tube and the front and rear connecting tubes welded and fixed to the front and rear ends of the ignition chamber main tube respectively. The existing fixtures used for ignition chamber welding have the following defects in actual processing:

[0004] Since the front connecting tube needs to be welded coaxially with the ignition chamber main tube, a three-jaw chuck is usually used to concentrically fix the ignition chamber main tube and the front connecting tube respectively, and then the ignition chamber main tube and the front connecting tube are brought close to each other so that the welding point is tightly in contact, and then welding is performed. However, when using a three-jaw chuck for fixing, if the three-jaw chuck only limits the ignition chamber main tube and the front connecting tube, then during the docking process, the ignition chamber main tube and the front connecting tube will slide axially relative to the corresponding three-jaw chuck, resulting in the ignition chamber main tube and the front connecting tube not being tightly docked; if you want to ensure that the ignition chamber main tube and the front connecting tube are tightly docked, the three-jaw chuck needs to provide a greater clamping force, which may cause clamping damage to the surface of the ignition chamber main tube and the front connecting tube on the one hand, and on the other hand, during subsequent docking, if the ignition chamber main tube and the front connecting tube continue to abut against each other, the three-jaw chuck is very likely to cause scratches to the corresponding ignition chamber main tube or the front connecting tube.

[0005] Therefore, there is an urgent need for an ignition chamber welding fixture to solve the problems existing in the above-mentioned traditional fixtures when clamping the ignition chamber components for welding processing. Summary of the Invention

[0006] In order to solve the above problems, the present invention provides an ignition chamber welding fixture, which is used to solve the problems mentioned in the above background technology.

[0007] In order to achieve the above-mentioned objectives, the embodiments of the present application provide the following technical solutions: The present invention provides an ignition chamber welding fixture, comprising a base, on which two supporting assemblies 1 are provided for limiting the position of the ignition chamber main tube and are distributed front and back, the front supporting assembly 1 is provided with a supporting assembly 2 for supporting and limiting the front connecting tube and a pressing assembly for pressing the front end edge of the ignition chamber main tube, the front supporting assembly 1 is provided with a limiting assembly for auxiliary limiting the front connecting tube, the upper side of the base is provided with a supporting assembly 3 for supporting and limiting the rear connecting tube, and a docking drive assembly is provided between the base, the supporting assembly 3 and the front supporting assembly 1. The supporting assembly 1 includes a supporting ring plate provided above the base, the inner ring of the supporting ring plate is evenly provided with three supporting blocks along its circumferential direction, and a driving ring plate is rotatably provided on the supporting ring plate for driving the corresponding three supporting blocks to slide along the radial direction of the supporting ring plate. Support assembly 2 includes three triangular support brackets evenly distributed along the circumferential direction of the support ring plate. The support brackets are connected to the corresponding support blocks through a connecting part. The sides of the three support brackets close to each other are fixed with a pushing bar for pushing the front connecting pipe to move axially.

[0008] According to a favorable embodiment, the inner ring of the supporting ring plate is provided with three sliding holes 1 along its radial direction, the supporting blocks are slidably arranged in the corresponding sliding holes 1, and the surfaces of the two supporting ring plates on one side close to each other are provided with sliding holes 2 connected to the sliding holes 1, and a telescopic rod is provided between the two corresponding front and rear supporting blocks for common rotation, and the two ends of the telescopic rod are respectively slidably arranged in the corresponding sliding holes 2, and the surfaces of the two driving ring plates are provided with three arc-shaped guide holes, and the arc-shaped guide holes correspond one-to-one to the sliding holes 2 on the same side, and the two ends of the telescopic rod are respectively in sliding contact with the corresponding arc-shaped guide holes.

[0009] According to a preferred embodiment, the upper end of the support ring plate is configured as an open structure, and a limit plate for limiting the rear end surface of the ignition chamber main tube is fixedly provided on the rear side of the rear support ring plate. A support base is fixedly provided on the lower side of the support ring plate. The rear support base is fixedly connected to the upper side of the base, and the front support base is connected to the docking drive assembly. An arc-shaped rack is fixedly provided on the surface of the drive ring plate, and a transmission gear is provided on the support ring plate to rotate via a rotating shaft. The transmission gear meshes with the corresponding arc-shaped rack. The two rotating shafts are connected by a spline sliding fit. Motor 1 is fixedly provided on the base, and the output shaft of motor 1 is fixedly connected to one end of one of the rotating shafts.

[0010] According to a favorable embodiment, a sliding hole three connected to the sliding hole one is provided on the front side of the front supporting ring plate, and the connecting portion includes a sliding seat with a T-shaped cross-section, a part of the sliding seat is slidably arranged in the sliding hole three and is fixedly connected to the corresponding supporting block surface, a sliding groove is provided on the surface of the sliding seat, an adjusting screw is rotatably arranged in the sliding groove, an adjusting slider is threadedly connected to the adjusting screw, the adjusting slider is slidably arranged in the sliding groove and is fixedly connected to the corresponding supporting bracket.

[0011] According to a favorable embodiment, the limiting assembly includes a circular connecting column fixedly arranged on the front side of the supporting ring plate and at the same height as the center of the supporting ring plate, a rectangular connecting column is slidably inserted at the front end of the circular connecting column, and a sliding sleeve is provided at the front end of the rectangular connecting column. A spring telescopic pin is fixedly arranged on the left side of the sliding sleeve, and the end of the movable section of the spring telescopic pin is set to a cone shape.

[0012] According to a favorable embodiment, the clamping assembly includes a plurality of guide columns fixedly arranged on the front surface of the front supporting ring plate, a limit plate is fixedly arranged on one end of the guide column away from the front supporting ring plate, and the plurality of guide columns are all connected to the same annular front clamping plate through an ear seat 1, and the upper end of the front clamping plate is set to an open structure, and a clamping spring 1 is sleeved on the surface of the guide column, and the two ends of the clamping spring 1 are respectively fixedly connected to the corresponding ear seat 1 and the limit plate.

[0013] According to a favorable embodiment, the supporting assembly three includes a fixed seat fixed above the base through a plurality of diagonal supports, a transmission part is provided between the fixed seat and the docking drive assembly, and a locking part is provided between the transmission part and the fixed seat.

[0014] According to a favorable embodiment, a track groove is provided on the upper side of the fixed seat, and the transmission part includes a driving seat slidably arranged in the track groove, a driving rod is slidably inserted on the driving seat, the front end of the driving rod is connected to the locking part, the lower side of the driving seat is connected to the docking drive assembly, and the surface of the driving rod located on the front side of the driving seat is provided with a compression spring 2.

[0015] According to a preferred embodiment, the locking portion includes a support seat with a lower end slidingly arranged in a track groove, the rear side of the support seat is fixedly connected to the front end of the drive rod and the front end of the second compression spring, two symmetrical positioning rods are fixedly arranged near the front side of the support seat, the upper side of the support seat is provided with a slot for engaging with the end of the rear connecting pipe, the rear side of the support seat is threaded with a locking screw, the front end of the locking screw is rotatably connected to a locking plate for pressing against the side wall of the end of the rear connecting pipe. Two symmetrical guide rods are slidably inserted into the front side of the support seat, the front ends of the two guide rods are jointly fixedly connected to a rear compression plate in an arc shape for contacting the lower edge of the rear end surface of the ignition chamber main tube, the surface of the guide rods is provided with a compression spring three, and the front and rear ends of the compression spring three are fixedly connected to the rear compression plate and the support seat, respectively.

[0016] According to a favorable embodiment, the docking drive assembly includes a drive screw that is rotatably arranged on the base through two ear seats, wherein a motor 2 is fixedly arranged on one of the ear seats 2, and the output shaft of the motor 2 is fixedly connected to the corresponding end of the drive screw. The drive screw is provided with two threaded sections with opposite threads and both threaded sections are threadedly connected with drive blocks, the front drive block is fixedly connected to the front support base, and the rear drive block is fixedly connected to the drive seat through a transmission column.

[0017] Compared with the prior art, the ignition chamber welding fixture provided by the embodiment of the present invention has the following beneficial effects:

[0018] 1. In the present invention, the ignition chamber main tube and the front connecting tube are first limited coaxially by the linkage of the supporting block and the pushing bar, and then the ignition chamber main tube is axially tightened by the clamping assembly to ensure that the rear port of the front connecting tube can fit closely with the front end surface of the ignition chamber main tube, thereby reducing the pressure on the side wall of the ignition chamber main tube, preventing wear during docking, and ensuring the stability of the ignition chamber main tube itself and the ignition chamber main body and the front connecting tube after clamping.

[0019] 2. In the present invention, the front clamping plate cooperates with the first clamping spring and the rear clamping plate cooperates with the third clamping spring. The movement is controlled by the docking drive assembly. The support block is only in contact with the main tube of the ignition chamber to limit the position. The friction is extremely small during movement. The main tube of the ignition chamber is elastically clamped and fixed in the axial direction. While ensuring the welding stability, the risk of clamping the surface of the quartz tube is completely avoided.

[0020] 3. In the present invention, the end of the spring telescopic pin of the limiting assembly is inserted into the port of the branch pipe on the surface of the front connecting pipe. The supporting assembly three can accurately fix the rear connecting pipe through the card slot, positioning rod and locking plate, and specifically limit the special-shaped parts stably, thereby further improving the stability after clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first position three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a second position three-dimensional structural diagram of the present invention.

[0023] Figure 3 It is a side plan view of the present invention.

[0024] Figure 4 It is a schematic diagram of the connection structure of the front-center support component 1, support component 2, limit component and clamping component.

[0025] Figure 5 This is a schematic diagram of the split structure of the front supporting component 1 and the supporting component 2 in the present invention.

[0026] Figure 6 This is an external three-dimensional structural diagram of the supporting component 2 in the present invention.

[0027] Figure 7 This is an external three-dimensional structural diagram of the limiting component in the present invention.

[0028] Figure 8 This is an external three-dimensional structural diagram of the supporting component three in the present invention.

[0029] Figure 9 This is a first-person perspective stereoscopic structural diagram of the ignition chamber.

[0030] Figure 10 A second-perspective three-dimensional diagram of the ignition chamber

[0031] : 1. base; 2. supporting assembly 1; 21. supporting ring plate; 22. supporting block; 23. driving ring plate; 231. arc-shaped guide hole; 24. supporting base; 25. arc-shaped rack; 26. transmission gear; 3. supporting assembly 2; 31. supporting bracket; 32. connecting part; 321. slide; 322. adjusting screw; 323. adjusting slider; 33. pushing bar; 4. clamping assembly; 41. guide column; 42. front clamping plate; 43. clamping spring 1; 5. limiting assembly; 51. circular connecting column; 52. rectangular connecting column; 53. spring telescopic pin; 6. supporting assembly Part three; 61. Fixed seat; 62. Transmission part; 621. Drive seat; 622. Drive rod; 623. Compression spring two; 63. Locking part; 631. Support seat; 632. Positioning rod; 633. Locking screw; 634. Locking plate; 635. Guide rod; 636. Rear compression plate; 637. Compression spring three; 7. Docking drive assembly; 71. Drive screw; 72. Drive block; 73. Transmission column; 8. Telescopic rod; 9. Limiting plate; 10. Ignition chamber main tube; 11. Front connecting tube; 12. Rear connecting tube; 13. Flange one; 14. Branch pipe; 15. Flange two. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1 -Attached Figure 10 This application is described in further detail.

[0033] Please refer to Figure 1 、 Figure 2 、 Figure 9 and Figure 10The invention discloses an ignition chamber welding fixture, which is used to clamp and fix the ignition chamber. The specific clamped and fixed ignition chamber structure mainly consists of an ignition chamber main tube 10, a front connecting tube 11 and a rear connecting tube 12. The front connecting tube 11 is a straight tube and needs to be coaxially fixed with the ignition chamber main tube 10. The end of the front connecting tube 11 connected to the ignition chamber main tube 10 is provided with a connecting flange 13, and the end of the front connecting tube 11 away from the ignition chamber main tube 10 is provided with a branch tube 14; the rear connecting tube 12 is a curved tube, and the end of the curved tube away from the ignition chamber main tube 10 is provided with a connecting flange 2 15.

[0034] See Figure 1 and Figure 2 The ignition chamber welding fixture includes a base 1, on which are mounted two support assemblies 1 and 2, distributed front and rear. The front support assembly 1 is equipped with a support assembly 2, a clamping assembly 4, and a position limiting assembly 5. A support assembly 3, which supports and limits the position of the rear connecting pipe 12, is located on the upper side of the base 1. A docking drive assembly 7 is provided between the base 1, support assembly 3, 6, and the front support assembly 1.

[0035] During specific operation, the ignition chamber main tube 10 is placed between two supporting components 1 2 for support and limitation, the front connecting tube 11 is supported and limited by the supporting component 2 3 , and the rear connecting tube 12 is supported and limited by the supporting component 3 6 .

[0036] The docking drive component 7 drives the front side supporting component 1 2 to drive the clamping component 4 to press close to the front end surface edge of the ignition chamber main tube 10. The docking drive component 7 can also simultaneously drive the supporting component 2 3 to drive the front connecting tube 11 close to the middle position of the front end surface of the ignition chamber main tube 10, so that the ignition chamber main tube 10 and the front connecting tube 11 are tightly docked.

[0037] At the same time, the limiting component 5 locks and limits the branch pipe 14 on the front connecting pipe 11, and can adaptively follow the front connecting pipe 11 close to the ignition chamber main pipe 10; ensuring that the branch pipe 14 of the front connecting pipe 11 can remain horizontal and remain unequally vertical with the rear connecting pipe 12 at the other end.

[0038] See Figure 1 、 Figure 4 and Figure 5The support assembly 1 (2) includes a support ring plate 21 mounted above the base 1. The inner ring of the support ring plate 21 is provided with three radially extending sliding holes (1), evenly distributed along the circumference of the support ring plate 21. A support block 22 is slidably mounted within the sliding holes (1), and a drive ring plate 23 is rotatably mounted on the support ring plate 21. The adjacent surfaces of the two support ring plates 21 each have a sliding hole (2) connected to the sliding hole (1). A telescopic rod 8 is positioned between the two corresponding support blocks 22. The telescopic rod 8 is self-retractable and adaptively contracts to avoid interference when the front support ring plate 21 moves toward the rear support ring plate 21. The ends of the telescopic rod 8 slide within the corresponding sliding holes (2). Each of the two drive ring plates 23 has three arcuate guide holes 231, corresponding one-to-one with the sliding holes (2) on the same side. The ends of the telescopic rod 8 slide and contact with the corresponding arcuate guide holes 231.

[0039] See Figure 2 、 Figure 4 and Figure 5 The upper end of the supporting ring plate 21 is set to an open structure, and the rear side of the rear supporting ring plate 21 is fixedly provided with a limit plate 9 for limiting the rear end surface of the ignition chamber main tube 10. The lower side of the supporting ring plate 21 is fixedly provided with a support base 24. The rear support base 24 is fixedly connected to the upper side of the base 1, and the front support base 24 is connected to the docking drive assembly 7. The docking drive assembly 7 can drive the front supporting ring plate 21 to move.

[0040] During operation, the operator rotates the drive ring plate 23, and the two corresponding drive ring plates 23 rotate together. The arc-shaped guide holes 231 on their surfaces can push the two ends of the same telescopic rod 8. This forces the support blocks 22 at the front and rear ends of the telescopic rod 8 to slide along their respective sliding holes, causing the three support blocks 22 on the inner circle of the same support ring plate 21 to approach each other, thereby allowing the ignition chamber main tube 10 placed in the support ring plate 21 to gradually become concentric with the support ring plate 21. At this time, all the support blocks 22 are in contact with the ignition chamber main tube 10, but the pressure exerted by the support blocks 22 on the ignition chamber main tube 10 is relatively small, and they mainly serve as a limiter.

[0041] See Figure 2 and Figure 5 An arc-shaped rack 25 is fixedly mounted on the surface of the drive ring plate 23. A transmission gear 26 is rotatably mounted on the support ring plate 21 via a rotating shaft. The arc-shaped rack 25 meshes with the corresponding transmission gear 26. The two rotating shafts are connected by a splined sliding fit. Motor 1 is fixedly mounted on the base 1. The output shaft of Motor 1 is fixedly connected to one end of one of the rotating shafts. When Motor 1 drives the rotating shaft to rotate, the two transmission gears 26 can drive the corresponding drive ring plate 23 to rotate via the arc-shaped rack 25.

[0042] See 1 and Figure 4 The supporting assembly 2 3 includes three triangular supporting brackets 31 evenly distributed along the circumferential direction of the supporting ring plate 21. The supporting brackets 31 are connected to the corresponding supporting blocks 22 through a connecting portion 32. The three supporting brackets 31 are fixedly provided with a pushing bar 33 on the side close to each other for pushing the front connecting tube 11 to move axially.

[0043] See Figure 4 and Figure 6 The front side of the front support ring plate 21 is provided with a third slide hole, which communicates with the first slide hole. The connecting portion 32 includes a T-shaped slide seat 321. A portion of the slide seat 321 slides within the third slide hole and is fixedly connected to the surface of the corresponding support block 22. The surface of the slide seat 321 is provided with a slot, within which an adjustment screw 322 is rotatably mounted. One end of the adjustment screw 322 movably extends through the side wall of the slide seat 321 and is fixedly mounted with an adjustment knob. An adjustment slider 323 is threadedly connected to the adjustment screw 322. The adjustment slider 323 slides within the slot and is fixedly connected to the corresponding support bracket 31. By turning the adjustment knob, the adjustment screw 322 rotates, driving the adjustment slider 323 to move, adjusting the initial distance between the three support brackets 31. This ensures that when the three support blocks 22 in the support ring plate 21 contract to contact the outer wall of the ignition chamber main tube 10, the push bars 33 on the three support brackets 31 also contact the outer wall of the front connecting tube 11.

[0044] During specific operation, the front connecting tube 11 is inserted from the back to the front into the area formed by the three push bars 33. When the three supporting blocks 22 on the front side approach and shrink, the three supporting blocks 22 drive the three push bars 33 to shrink through the corresponding supporting brackets 31 and collide with the end face of the front connecting tube 11. Then, when the docking drive assembly 7 drives the front supporting ring plate 21 to move backward, it will synchronously drive the three push bars 33 and the front connecting tube 11 to move toward the ignition chamber main tube 10, and finally make the rear end of the front connecting tube 11 coaxially docked with the front end of the ignition chamber main tube 10, and at this time, the rear end face of the push bar 33 collide with the end face of the flange 13 at the end of the front connecting tube 11, pressing the front connecting tube 11 tightly against the front end face of the ignition chamber main tube 10.

[0045] See Figure 4 and Figure 7 The limiting assembly 5 includes a circular connecting column 51 fixedly arranged on the front side of the supporting ring plate 21 and at the same height as the center of the supporting ring plate 21. The front end of the circular connecting column 51 is slidably inserted with a rectangular connecting column 52. The front end sliding sleeve of the rectangular connecting column 52 is provided with a sliding sleeve, and a spring telescopic pin 53 is fixedly provided on the left side of the sliding sleeve. The end of the movable section of the spring telescopic pin 53 is set to a cone shape.

[0046] During specific work, in order to ensure that the branch pipe 14 on the front connecting pipe 11 remains horizontal and perpendicular to the rear connecting pipe 12, after the front connecting pipe 11 is docked and collides with the ignition chamber main pipe 10, the front connecting pipe 11 is rotated so that the branch pipe 14 on the front connecting pipe 11 is aligned with the spring telescopic pin 53, so that the movable section end of the spring telescopic pin 53 is inserted into the port of the branch pipe 14, and the branch pipe 14 is limited to ensure that the branch pipe 14 remains fixed in this position during subsequent welding.

[0047] See Figure 1 and Figure 4 The clamping assembly 4 includes a plurality of guide posts 41, which are fixedly arranged on the front surface of the front supporting ring plate 21 and are evenly distributed along its circumferential direction. A limit disk is fixedly provided at one end of the guide post 41 away from the front supporting ring plate 21. The plurality of guide posts 41 are all connected to the same annular front clamping plate 42 through an ear seat 1, and the upper end of the front clamping plate 42 is set to an open structure. A clamping spring 1 43 is provided on the surface of the guide post 41, and the two ends of the clamping spring 1 43 are respectively fixedly connected to the corresponding ear seat 1 and the limit disk.

[0048] During operation, when the front supporting ring plate 21 moves backward through the docking drive assembly 7, it drives the front pressing plate 42 to move toward the front end surface of the ignition chamber main tube 10 and press it tightly. As the supporting ring plate 21 moves, the pressing force increases continuously until the rear end of the front connecting tube 11 contacts the front end of the ignition chamber main tube 10 and stops. Since the pressure between the supporting block 22 and the ignition chamber main tube 10 is relatively small, the friction of the front supporting block 22 moving along the surface of the ignition chamber main tube 10 driven by the front supporting ring plate 21 is small, and the surface of the ignition chamber main tube 10 is not damaged. By pushing the front pressing plate 42 to press the front end surface of the ignition chamber main tube 10, the front connecting tube 11 and the center of the front end surface of the ignition chamber main tube 10 are docked and pressed tightly, thereby ensuring the stability of the ignition chamber main tube 10 and the front connecting tube 11 after being clamped and fixed.

[0049] See Figure 2 and Figure 3 The supporting component three 6 includes a fixed seat 61 fixed above the base 1 through a plurality of diagonal supports, a transmission part 62 is provided between the fixed seat 61 and the docking drive component 7, and a locking part 63 is provided between the transmission part 62 and the fixed seat 61.

[0050] See Figure 2 、 Figure 3 and Figure 8A track groove is formed on the upper side of the fixing seat 61. The transmission portion 62 includes a driving seat 621 that is slidably disposed in the track groove. A driving rod 622 is slidably inserted into the driving seat 621. The front end of the driving rod 622 is connected to the locking portion 63. The lower side of the driving seat 621 is connected to the docking drive assembly 7. The surface of the driving rod 622 located in front of the driving seat 621 is sleeved with a second compression spring 623. The docking drive assembly 7 controls the movement of the driving seat 621, so that the driving seat 621 drives the locking portion 63 to move through the driving rod 622, so that the rear connecting tube 12 fixed on the locking portion 63 can move toward the rear end surface of the ignition chamber main tube 10 and be fixed in a designated position.

[0051] See Figure 2 、 Figure 3 and Figure 8 The locking portion 63 includes a supporting seat 631 whose lower end is slidably arranged in the track groove. The rear side of the supporting seat 631 is fixedly connected to the front end of the driving rod 622 and the front end of the compression spring 2 623 respectively. Two symmetrical positioning rods 632 are fixedly provided on the supporting seat 631 near the front side. A card slot for engaging with the end of the rear connecting pipe 12 is opened on the upper side of the supporting seat 631. The depth of the card slot is moderate and it is easy to pull out. The rear side thread of the support seat 631 is provided with a locking screw 633, and the front end of the locking screw 633 is rotatably connected to a locking plate 634 for pressing against the side wall of the end of the rear connecting tube 12, and the front side of the support seat 631 is slidably inserted with two left-right symmetrical guide rods 635, and the front ends of the two guide rods 635 are fixedly connected to a rear compression plate 636 in an arc shape for pressing against the lower edge of the rear end face of the ignition chamber main tube 10, and the surface of the guide rod 635 is provided with a compression spring three 637, and the front and rear ends of the compression spring three 637 are fixedly connected to the support seat 631 and the rear compression plate 636.

[0052] During specific operation, the flange 2 15 on the rear connecting pipe 12 is embedded in the card slot, and the horizontal section of the rear connecting pipe 12 is stuck between the two positioning rods 632 to calibrate and position the rear connecting pipe 12. Afterwards, the staff rotates the locking screw 633 to drive the locking plate 634 to tighten the side wall of the flange 2 15 on the rear connecting pipe 12. When the support seat 631 moves toward the rear end face of the ignition chamber main tube 10, the rear clamping plate 636 will first contact the rear end face of the ignition chamber main tube 10 and as it gradually approaches, the clamping force gradually increases, and the ignition chamber main tube 10 is further clamped and fixed by the front clamping plate 42 and the rear clamping plate 636. Until the port of the horizontal section of the rear connecting pipe 12 contacts and stops at the specified position of the rear end face of the ignition chamber main tube 10, at this time, the rear port of the front connecting pipe 11 also just contacts the front end face of the ignition chamber main tube 10.

[0053] See Figure 1 、 Figure 2 、 Figure 5 and Figure 8 The docking drive assembly 7 includes a drive screw 71 that is rotatably arranged on the base 1 through two ear seats 2, one of which is fixedly provided with a motor 2, and the output shaft of the motor 2 is fixedly connected to the corresponding end of the drive screw 71. The drive screw 71 is provided with two threaded sections with opposite threads and both threaded sections are threadedly connected with a drive block 72. The front drive block 72 is fixedly connected to the front support base 24, and the rear drive block 72 is fixedly connected to the drive seat 621 through a transmission column 73.

[0054] During specific operation, the second motor drives the driving screw 71 to rotate to control the two driving blocks 72 to move closer to or away from each other, thereby controlling the front supporting ring plate 21 and the driving seat 621 to move.

[0055] The entire clamp usage process is as follows: first, insert the front connecting tube 11 from the back to the front into the supporting area formed by the three pushing strips 33, so that the rear end face of the pushing strip 33 can contact the end face of the flange 13 at the end of the front connecting tube 11, and then place the ignition chamber main tube 10 between the two supporting ring plates 21, and then place the flange 2 15 at the lower end of the vertical section of the rear connecting tube 12 in the groove on the supporting seat 631, and lock it with the locking plate 634. Then, motor 1 and motor 2 work, and motor 1 drives the transmission gear 26 to cooperate with the arc-shaped rack 25 to control the rotation of the driving ring plate 23, so that the three supporting blocks 22 on the inner circle of the same supporting ring plate 21 are synchronously approached, so that the three supporting blocks 22 are in contact with the peripheral side surface of the ignition chamber main tube 10 at the same time, and the three corresponding supporting blocks 22 also drive the corresponding three pushing strips 33 to approach synchronously, so that the three pushing strips 33 are in contact with the peripheral side surface of the front connecting tube 11 at the same time;

[0056] At the same time, the docking drive assembly 7 drives the front support ring plate 21 to move toward the rear support ring plate 21, driving the front clamping plate 42 and the rear clamping plate 636 to respectively press the front and rear end faces of the ignition chamber main tube 10, and dock the front connecting tube 11 and the rear connecting tube 12 with the corresponding positions of the front and rear end faces of the ignition chamber main tube 10 at the same time.

[0057] Then, the front connecting tube 11 is rotated again, and the spring telescopic pin 53 is inserted into the end of the branch tube 14 of the front connecting tube 11 to limit the front connecting tube 11 and complete the fixation of the various parts of the ignition chamber.

[0058] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0059] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0060] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0061] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ignition chamber welding fixture, characterized by: The base comprises two supporting assemblies 1 for limiting the position of the ignition chamber main tube and distributed front and back, the front supporting assembly 1 is provided with a supporting assembly 2 for supporting and limiting the front connecting tube and a pressing assembly for pressing against the edge of the front end surface of the ignition chamber main tube, the front supporting assembly 1 is provided with a limiting assembly for auxiliary limiting the front connecting tube, and a supporting assembly 3 for supporting and limiting the rear connecting tube is provided on the upper side of the base, and a docking drive assembly is commonly provided between the base, the supporting assembly 3 and the front supporting assembly 1; The supporting assembly 1 includes a supporting ring plate arranged above the base, the inner ring of the supporting ring plate is evenly provided with three supporting blocks along its circumferential direction, and a driving ring plate is rotatably provided on the supporting ring plate for driving the corresponding three supporting blocks to slide radially along the supporting ring plate; The second support assembly includes three triangular support brackets evenly distributed along the circumference of the support ring plate. The support brackets are connected to the corresponding support blocks via connecting parts. A push bar for pushing the front connecting pipe to move axially is fixedly provided on the side of the three support brackets close to each other. The fixture achieves precise positioning and compression fixation of the ignition chamber main tube and the front and rear connecting tubes through the coordinated cooperation of multiple components.

2. The ignition chamber welding fixture according to claim 1, characterized in that: The inner ring of the supporting ring plate is provided with three sliding holes 1 along its radial direction, and the supporting blocks are slidably arranged in the corresponding sliding holes 1. The surfaces of the two supporting ring plates on one side close to each other are provided with sliding holes 2 connected to the sliding holes 1. A telescopic rod is provided between the two corresponding front and rear supporting blocks for common rotation, and the two ends of the telescopic rod are respectively slidably arranged in the corresponding sliding holes 2, and the surfaces of the two driving ring plates are provided with three arc-shaped guide holes, which correspond one to one to the sliding holes 2 on the same side, and the two ends of the telescopic rod are respectively in sliding contact with the corresponding arc-shaped guide holes.

3. The ignition chamber welding fixture according to claim 2, characterized in that: The upper end of the supporting ring plate is set as an open structure, and the rear side of the rear supporting ring plate is fixedly provided with a limit plate for limiting the rear end surface of the ignition chamber main body tube, and the lower side of the supporting ring plate is fixedly provided with a support base, the rear support base is fixedly connected to the upper side of the base, and the front support base is connected to the docking drive assembly; An arc-shaped rack is fixedly provided on the surface of the driving ring plate, and a transmission gear is provided on the supporting ring plate through rotation of the rotating shaft. The transmission gear is engaged with the corresponding arc-shaped rack, and the two rotating shafts are connected by spline sliding fit. Motor 1 is fixedly provided on the base, and the output shaft of motor 1 is fixedly connected to one end of one of the rotating shafts.

4. The ignition chamber welding fixture according to claim 2, characterized in that: A sliding hole three connected to the sliding hole one is provided on the front side of the front supporting ring plate. The connecting part includes a sliding seat with a T-shaped cross-section. A part of the sliding seat is slidably set in the sliding hole three and is fixedly connected to the corresponding supporting block surface. A sliding groove is provided on the surface of the sliding seat. An adjusting screw is rotatably set in the sliding groove. An adjusting slider is threaded on the adjusting screw. The adjusting slider is slidably set in the sliding groove and is fixedly connected to the corresponding supporting bracket.

5. The ignition chamber welding fixture according to claim 1, characterized in that: The limiting assembly includes a circular connecting column fixedly arranged on the front side of the supporting ring plate and at the same height as the center of the supporting ring plate. The front end of the circular connecting column is slidably inserted with a rectangular connecting column. The front end sliding sleeve of the rectangular connecting column is provided with a sliding sleeve. A spring telescopic pin is fixedly arranged on the left side of the sliding sleeve, and the end of the movable section of the spring telescopic pin is set to a cone shape.

6. The ignition chamber welding fixture according to claim 1, characterized in that: The clamping assembly includes a plurality of guide columns fixedly arranged on the front surface of the front supporting ring plate, a limit plate is fixedly arranged on one end of the guide column away from the front supporting ring plate, and the plurality of guide columns are connected to the same annular front clamping plate through an ear seat 1, and the upper end of the front clamping plate is set to an open structure, a clamping spring 1 is sleeved on the surface of the guide column, and the two ends of the clamping spring 1 are respectively fixedly connected to the corresponding ear seat 1 and the limit plate.

7. The ignition chamber welding fixture according to claim 3, characterized in that: The supporting component three includes a fixed seat fixed above the base through a plurality of diagonal supports, a transmission part is provided between the fixed seat and the docking drive component, and a locking part is provided between the transmission part and the fixed seat.

8. The ignition chamber welding fixture according to claim 7, characterized in that: A track groove is provided on the upper side of the fixed seat, and the transmission part includes a driving seat slidably arranged in the track groove, a driving rod is slidably inserted on the driving seat, the front end of the driving rod is connected to the locking part, the lower side of the driving seat is connected to the docking driving assembly, and the surface of the driving rod located on the front side of the driving seat is provided with a compression spring 2.

9. The ignition chamber welding fixture according to claim 7, characterized in that: The locking portion includes a supporting seat whose lower end is slidably arranged in the track groove, and the rear side of the supporting seat is fixedly connected to the front end of the driving rod and the front end of the second compression spring respectively. Two symmetrical positioning rods are fixedly provided on the supporting seat near the front side. A card slot for engaging with the end of the rear connecting pipe is opened on the upper side of the supporting seat. A locking screw is threadedly provided on the rear side of the supporting seat, and the front end of the locking screw is rotatably connected to a locking plate that presses against the side wall of the end of the rear connecting pipe. Two symmetrical guide rods are slidably inserted into the front side of the support seat. The front ends of the two guide rods are fixedly connected to a rear pressure plate in an arc shape for resisting the lower edge of the rear end surface of the ignition chamber main tube. A compression spring three is provided on the surface of the guide rod, and the front and rear ends of the compression spring three are fixedly connected to the rear pressure plate and the support seat respectively.

10. The ignition chamber welding fixture according to claim 8, characterized in that: The docking drive assembly includes a driving screw that is rotatably arranged on the base through two ear seats, wherein a motor 2 is fixedly arranged on one of the ear seats 2, and the output shaft of the motor 2 is fixedly connected to the corresponding end of the driving screw. The driving screw is provided with two threaded sections with opposite threads and both threaded sections are threadedly connected with a driving block, the front driving block is fixedly connected to the front support base, and the rear driving block is fixedly connected to the driving seat through a transmission column.

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