Quartz tube rapid positioning and clamping device

Abstract

The invention discloses a rapid positioning and clamping device for a quartz tube, and aims to overcome the defects that quartz tube products are inconvenient to clamp and position and poor in clamping and positioning accuracy. The clamping device comprises a clamping seat and at least three clamping jaws arranged on the clamping seat, a quartz tube is loaded on the clamping seat, the clamping jaws are arranged on the periphery of the quartz tube, a driving ring is installed on the clamping seat, and the driving ring rotates to push the clamping jaws towards the outer wall of the quartz tube so that the clamping jaws can abut against the outer wall of the quartz tube to achieve clamping and positioning of the quartz tube. According to the rapid positioning and clamping device for the quartz tube, rapid clamping and positioning of quartz tube products can be achieved, positioning is accurate and reliable, and clamping operation is convenient and fast.

Description

Technical Field

[0001] The invention relates to a quartz tube processing technology, and more specifically, to a quartz tube rapid positioning and clamping device. Background Art

[0002] Fire processing is an important process in the processing of quartz tubes. Quartz tube products need to be clamped and positioned during fire processing. The currently commonly used clamping and positioning method is to use a three-jaw chuck for clamping, which cannot effectively achieve precise positioning and the clamping operation is inconvenient. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention provides a quartz tube rapid positioning and clamping device, which can realize rapid clamping and positioning of quartz tube products, with accurate and reliable positioning and convenient clamping operation.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a quartz tube rapid positioning and clamping device, comprising a clamping seat and at least three clamping jaws arranged on the clamping seat, the quartz tube is loaded on the clamping seat, the clamping jaws are placed on the periphery of the quartz tube, and a driving ring is installed on the clamping seat. The driving ring rotates to push the clamping jaws toward the outer wall of the quartz tube so that the clamping jaws are pressed against the outer wall of the quartz tube to achieve clamping and positioning of the quartz tube.

[0005] During the quartz tube clamping operation, the quartz tube is loaded onto the clamping seat, and then the driving ring is rotated. The driving ring rotates to push the clamping claws toward the outer wall of the quartz tube so that the clamping claws are pressed against the outer wall of the quartz tube to achieve the clamping and positioning of the quartz tube. Since at least three clamping claws are provided, the quartz tube is accurately positioned during the radial inward movement of at least three clamping claws, and at least three-point clamping and positioning are more reliable. This quartz tube rapid positioning clamping device can achieve rapid clamping and positioning of quartz tube products, with accurate and reliable positioning and convenient clamping operation.

[0006] Preferably, a pressure cover is provided on the clamping seat, and the pressure cover is pressed on the driving ring to axially position the driving ring.

[0007] The gland is pressed on the driving ring to realize axial positioning of the driving ring, prevent the driving ring from axial movement, and ensure the smooth rotation of the driving ring.

[0008] Preferably, a mounting seat is provided on the clamping seat corresponding to the clamping jaw, the mounting seat is tightly connected to the pressure cover, and the clamping jaw is installed on the mounting seat.

[0009] The arrangement of the mounting seat facilitates the connection of the gland.

[0010] Preferably, a positioning boss is provided on the clamping seat, and the lower end opening of the quartz tube is sleeved on the periphery of the positioning boss.

[0011] The lower opening of the quartz tube is sleeved on the periphery of the positioning boss to achieve preliminary positioning and reduce the position deviation of the quartz tube when it is loaded.

[0012] Preferably, a push bar is provided on the drive ring corresponding to the clamping jaw, the inner wall of the push bar is arc-shaped, and the inner wall of the push bar is offset from one end to the other along the circumferential direction toward the center of the drive ring, and the inner wall of the push bar is close to the clamping jaw.

[0013] The inner wall of the push bar is offset from one end to the other along the circumferential direction toward the center of the driving ring. During the rotation of the driving ring, the push bar is pushed onto the clamping claw, which pushes the clamping claw to move to achieve clamping and positioning of the quartz tube.

[0014] Preferably, one end of the pushing bar is rotatably connected to the driving ring, an elastic tensioning piece is installed between the pushing bar and the driving ring, an adjusting ring is installed on the driving ring, the adjusting ring is rotatably set, a top block is set on the adjusting ring, the top block is pressed against the pushing bar, and the adjusting ring rotates to cause the top block to push the pushing bar to deflect.

[0015] The push bar is rotatably mounted on the driving ring, and the adjusting ring rotates to make the top block push the push bar to deflect, thereby adjusting the radial pushing amount of the clamping jaws by the push bar, so that the entire clamping device can clamp quartz tubes of different sizes.

[0016] Preferably, the clamping jaws are rotatably arranged, a return elastic member is installed between the clamping jaws and the clamping seat, and the driving ring rotates to drive the clamping jaws to deflect and clamp onto the outer wall of the quartz tube.

[0017] The clamping jaws are rotatably mounted on the clamping seat, and the driving ring rotates to drive the clamping jaws to deflect and clamp onto the outer wall of the quartz tube, so that the clamping and positioning are reliable.

[0018] In another solution, the clamping jaws are arranged to move radially, a pulling elastic member is installed between the clamping jaws and the clamping seat, and the driving ring rotates to drive the clamping jaws to move radially inward and clamp onto the outer wall of the quartz tube.

[0019] The driving ring rotates to drive the clamping claws to move radially inward and clamp onto the outer wall of the quartz tube, which is stable and reliable.

[0020] Preferably, an auxiliary clamping block is arranged above the clamping jaw, and a vertical spring is connected between the auxiliary clamping block and the clamping jaw.

[0021] When the clamping jaws are clamped to the outer wall of the quartz tube, the auxiliary clamping block is also clamped to the outer wall of the quartz tube, so that two circles of clamping are formed on the outer wall of the quartz tube, and the clamping positioning is accurate and reliable. A vertical spring is connected between the auxiliary clamping block and the clamping jaws to ensure that the auxiliary clamping block can reliably clamp the outer wall of the large quartz tube.

[0022] Preferably, a clamping portion protruding inward is provided on the upper portion of the clamping jaw, and the clamping portion is clamped on the outer wall of the quartz tube.

[0023] The clamping part on the clamping jaw clamps and positions the outer wall of the quartz tube accurately and reliably.

[0024] Compared with the prior art, the beneficial effects of the present invention are: (1) the quartz tube rapid positioning and clamping device can realize rapid clamping and positioning of quartz tube products, with accurate and reliable positioning and convenient clamping operation; (2) the push bar is rotatably installed on the driving ring, and the adjusting ring rotates to make the top block push the push bar to deflect, thereby realizing the adjustment of the radial pushing amount of the clamping claw by the push bar, so that the entire clamping device can clamp quartz tubes of different sizes and specifications; (3) when the clamping claw is clamped to the outer wall of the quartz tube, the auxiliary clamping block is also clamped to the outer wall of the quartz tube, thereby forming two circles of clamping on the outer wall of the quartz tube, and the clamping and positioning are accurate and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is an exploded view of the present invention.

[0027] Figure 3 It is a top view of Example 1 of the present invention.

[0028] Figure 4 The present invention Figure 3 AA section view.

[0029] Figure 5 It is a top view of Example 2 of the present invention.

[0030] Figure 6 The present invention Figure 5 BB cross-sectional view.

[0031] Figure 7 It is a cross-sectional view of Example 3 of the present invention.

[0032] Figure 8 It is a cross-sectional view of Example 4 of the present invention.

[0033] Fig. 9 It is a cross-sectional view of Example 5 of the present invention.

[0034] In the figure: 1, clamping seat, 2, clamping claw, 3, quartz tube, 4, positioning boss, 5, driving ring, 6, clamping part, 7, rotating handle, 8, handle mounting block, 9, pressure cover, 10, mounting seat, 11, flange, 12, positioning pin, 13, pushing strip, 14, elastic tensioning member, 15, adjusting ring, 16, sinking ring groove, 17, positioning ring, 18, locking screw, 19, top block, 20, guide column, 21, guide groove, 22, return elastic member, 23, mounting groove, 24, auxiliary clamping block, 25, vertical spring, 26, positioning ball, 27, connecting rod, 28, pulling elastic member, 29, slide groove. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Embodiment 1: A quartz tube fast positioning and clamping device (see attached Figure 1 To Attachment Figure 4 ), comprises a clamping seat 1 and at least three clamping jaws 2 arranged on the clamping seat 1. In this embodiment, three clamping jaws 2 are evenly distributed in the circumference. The quartz tube 3 is loaded on the clamping seat 1, and the clamping jaws 2 are placed on the periphery of the quartz tube 3. A positioning boss 4 is arranged on the clamping seat 1. The quartz tube 3 is clamped vertically, and the lower end opening of the quartz tube 3 is sleeved on the periphery of the positioning boss 4. A driving ring 5 is installed on the clamping seat 1. The driving ring 5 rotates to push the clamping jaws 2 toward the outer wall of the quartz tube 3 so that the clamping jaws 2 are pressed against the outer wall of the quartz tube 3 to achieve clamping and positioning of the quartz tube 3. An inwardly protruding clamping portion 6 is provided on the upper part of the clamping jaw 2. The clamping portion 6 is arranged on the upper part of the clamping jaw 2, and the clamping portion 6 is clamped on the outer wall of the quartz tube 3. The driving ring 5 is connected to a rotating handle 7, and the rotating handle 7 and the driving ring 5 are fastened by a handle mounting block 8.

[0036] A pressure cap 9 is provided on the clamping seat 1, and the pressure cap 9 is pressed on the driving ring 5 to axially position the driving ring 5. A mounting seat 10 is provided on the clamping seat 1 and corresponds to the clamping jaw 2, and the mounting seat 10 is tightly connected to the pressure cap 9, and the clamping jaw 2 is installed on the mounting seat 10. The driving ring 5 is supported on the mounting seat 10, and an inwardly protruding flange 11 is provided on the inner wall of the pressure cap 9, and the flange 11 is pressed on the driving ring 5. The inner wall of the pressure cap 9 is adapted to fit the outer wall of the driving ring 5, so that the driving ring 5 can rotate smoothly.

[0037] The clamping seat 1 and the mounting seat 10 are provided with positioning pins 12 correspondingly, and the positioning pins 12 are inserted between the clamping seat 1 and the mounting seat 10. The clamping seat 1 is provided with lower plug holes corresponding to the positioning pins 12, and the mounting seat 10 is provided with upper plug holes corresponding to the positioning pins 12. During assembly, the positioning pins 12 are first connected to the lower plug holes on the clamping seat 1, and then the upper plug holes on the mounting seat 10 are aligned with the positioning pins 12 and inserted together, and finally the mounting seat 10 and the clamping seat 1 are fastened together with screws. The gland 9 and the upper end of the mounting seat 10 are fastened by screws.

[0038] Three push bars 13 are arranged on the driving ring 5 and corresponding to the clamping jaws 2. The inner wall of the push bar 13 is arc-shaped. The inner wall of the push bar 13 is offset from one end to the other end along the circumferential direction toward the center of the driving ring 5. The inner wall of the push bar 13 is close to the clamping jaws 2. The push bar 13 and the driving ring 5 are integrally structured, and the push bar 13 is arranged on the inner wall of the driving ring 5.

[0039] The clamping jaw 2 is rotatably arranged, and a return elastic member 22 is installed between the clamping jaw 2 and the clamping seat 1. The driving ring 5 rotates to drive the clamping jaw 2 to deflect and clamp onto the outer wall of the quartz tube 3. A mounting groove 23 is arranged on the mounting seat 10, and the lower part of the clamping jaw 2 is rotatably installed in the mounting groove 23. A rotating shaft is installed in the mounting groove 23, and the clamping jaw 2 is movably plug-in connected with the rotating shaft so that the clamping jaw 2 can rotate. The return elastic member 22 is installed between the bottom of the mounting groove 23 and the bottom of the clamping jaw 2. The return elastic member 22 abuts against the clamping jaw 2 to realize the positioning of the clamping jaw 2, ensuring that the upper outer wall of the clamping jaw 2 is always in contact with the inner wall of the push bar 13. The return elastic member 22 is a spring.

[0040] In the initial state, under the action of the return elastic member 22, the outer periphery of the clamping jaw 2 is close to the push bar 13, and the contour of the circle formed by the clamping jaw 2 is larger than the outer contour of the quartz tube 3. When the quartz tube 3 is clamped, the quartz tube 3 is loaded onto the clamping seat 1, the lower end opening of the quartz tube 3 is sleeved on the outer periphery of the positioning boss 4, and the clamping jaw 2 is placed on the outer periphery of the quartz tube 3. Then, the driving ring 5 is rotated by the handle, and the driving ring 5 rotates to make the push bar 13 push the upper part of the clamping jaw 2 to deflect radially inward, so that the clamping part 6 on the clamping jaw 2 is clamped to the outer wall of the quartz tube 3 to achieve the clamping and positioning of the quartz tube 3. Since there are three clamping jaws 2, the three clamping jaws 2 can achieve accurate positioning of the quartz tube 3 during the process of moving radially inward, and the three-point clamping and positioning is more reliable. Before removing the quartz tube 3, the driving ring 5 is rotated in the opposite direction, and under the action of the return elastic member 22, the upper part of the clamping jaw 2 is deflected outward to separate the clamping part 6 from the quartz tube 3, and then the quartz tube 3 can be easily removed. The quartz tube 3 rapid positioning and clamping device can realize rapid clamping and positioning of quartz tube 3 products, with accurate and reliable positioning and convenient clamping operation.

[0041] Embodiment 2: A quartz tube fast positioning and clamping device (see attached Figure 5 , Attachment Figure 6 ), comprises a clamping seat 1 and at least three clamping jaws 2 arranged on the clamping seat 1. In this embodiment, three clamping jaws 2 are evenly distributed in the circumference. The quartz tube 3 is loaded on the clamping seat 1, and the clamping jaws 2 are placed on the periphery of the quartz tube 3. A positioning boss 4 is arranged on the clamping seat 1. The quartz tube 3 is clamped vertically, and the lower end opening of the quartz tube 3 is sleeved on the periphery of the positioning boss 4. A driving ring 5 is installed on the clamping seat 1. The driving ring 5 rotates to push the clamping jaws 2 toward the outer wall of the quartz tube 3 so that the clamping jaws 2 are pressed against the outer wall of the quartz tube 3 to achieve clamping and positioning of the quartz tube 3. An inwardly protruding clamping portion 6 is provided on the upper part of the clamping jaw 2. The clamping portion 6 is arranged on the upper part of the clamping jaw 2, and the clamping portion 6 is clamped on the outer wall of the quartz tube 3. The driving ring 5 is connected to a rotating handle 7, and the rotating handle 7 and the driving ring 5 are fastened by a handle mounting block 8.

[0042] A pressure cap 9 is provided on the clamping seat 1, and the pressure cap 9 is pressed on the driving ring 5 to axially position the driving ring 5. A mounting seat 10 is provided on the clamping seat 1 and corresponds to the clamping jaw 2, and the mounting seat 10 is tightly connected to the pressure cap 9, and the clamping jaw 2 is installed on the mounting seat 10. The driving ring 5 is supported on the mounting seat 10, and an inwardly protruding flange 11 is provided on the inner wall of the pressure cap 9, and the flange 11 is pressed on the driving ring 5. The inner wall of the pressure cap 9 is adapted to fit the outer wall of the driving ring 5, so that the driving ring 5 can rotate smoothly.

[0043] The clamping seat 1 and the mounting seat 10 are provided with positioning pins 12 correspondingly, and the positioning pins 12 are inserted between the clamping seat 1 and the mounting seat 10. The clamping seat 1 is provided with lower plug holes corresponding to the positioning pins 12, and the mounting seat 10 is provided with upper plug holes corresponding to the positioning pins 12. During assembly, the positioning pins 12 are first connected to the lower plug holes on the clamping seat 1, and then the upper plug holes on the mounting seat 10 are aligned with the positioning pins 12 and inserted together, and finally the mounting seat 10 and the clamping seat 1 are fastened together with screws. The gland 9 and the upper end of the mounting seat 10 are fastened by screws.

[0044] Three push bars 13 are arranged on the driving ring 5 corresponding to the clamping jaws 2 . The inner wall of the push bar 13 is arc-shaped. The inner wall of the push bar 13 is offset from one end to the other along the circumferential direction toward the center of the driving ring 5 . The inner wall of the push bar 13 is close to the clamping jaws 2 .

[0045] One end of the push strip 13 is rotatably connected to the drive ring 5. An elastic tensioning member 14 is installed between the push strip 13 and the drive ring 5. The elastic tensioning member 14 is a spring. An adjusting ring 15 is installed on the drive ring 5. The adjusting ring 15 is rotatably arranged. A sinking ring groove 16 is arranged on the drive ring 5. The adjusting ring 15 is rotatably installed in the sinking ring groove 16. The upper end of the drive ring 5 is fastened to a positioning ring 17. The positioning ring 17 covers the adjusting ring 15 to limit the adjusting ring 15. The positioning ring 17 is connected to a locking screw 18. The end of the locking screw 18 abuts against the adjusting ring 15. A top block 19 is arranged on the adjusting ring 15. The top block 19 is pressed against the push strip 13. The adjusting ring 15 rotates so that the top block 19 pushes the push strip 13 to deflect. The inner wall of the push strip 13 is offset from the end rotatably connected to the drive ring 5 to the other end along the circumferential direction toward the center of the drive ring 5. The outer wall of the push bar 13 is offset from the end that is rotatably connected to the drive ring 5 to the other end along the circumferential direction away from the center of the drive ring 5, and the top block 19 is pressed against the outer wall of the push bar 13. The elastic tensioning member 14 is a tensioning spring. A guide column 20 is installed on the push bar 13. The drive ring 5 is provided with a guide groove 21 that is adapted to the guide column 20. The guide column 20 is inserted into the guide groove 21. The guide groove 21 is arc-shaped, and the center of the arc-shaped guide groove 21 is concentric with the rotation center of the push bar 13. The push bar 13 is rotatably installed on the drive ring 5. The adjustment ring 15 rotates to cause the top block 19 to push the push bar 13 to deflect, thereby realizing the adjustment of the radial pushing amount of the clamp 2 by the push bar 13. The entire clamping device can clamp quartz tubes 3 of different sizes.

[0046] The clamping jaw 2 is rotatably arranged, and a return elastic member 22 is installed between the clamping jaw 2 and the clamping seat 1. The driving ring 5 rotates to drive the clamping jaw 2 to deflect and clamp onto the outer wall of the quartz tube 3. A mounting groove 23 is arranged on the mounting seat 10, and the lower part of the clamping jaw 2 is rotatably installed in the mounting groove 23. A rotating shaft is installed in the mounting groove 23, and the clamping jaw 2 is movably plug-in connected with the rotating shaft so that the clamping jaw 2 can rotate. The return elastic member 22 is installed between the bottom of the mounting groove 23 and the bottom of the clamping jaw 2. The return elastic member 22 abuts against the clamping jaw 2 to realize the positioning of the clamping jaw 2, ensuring that the upper outer wall of the clamping jaw 2 is always in contact with the inner wall of the push bar 13. The return elastic member 22 is a spring.

[0047] In the initial state, under the action of the return elastic member 22, the outer periphery of the clamping jaw 2 is close to the push bar 13, and the contour of the circle formed by the clamping jaw 2 is larger than the outer contour of the quartz tube 3. When the quartz tube 3 is clamped, the quartz tube 3 is loaded onto the clamping seat 1, the lower end opening of the quartz tube 3 is sleeved on the outer periphery of the positioning boss 4, and the clamping jaw 2 is placed on the outer periphery of the quartz tube 3. Then, the driving ring 5 is rotated by the handle, and the driving ring 5 rotates to make the push bar 13 push the upper part of the clamping jaw 2 to deflect radially inward, so that the clamping part 6 on the clamping jaw 2 is clamped to the outer wall of the quartz tube 3 to achieve the clamping and positioning of the quartz tube 3. Since there are three clamping jaws 2, the three clamping jaws 2 can achieve accurate positioning of the quartz tube 3 during the process of moving radially inward, and the three-point clamping and positioning is more reliable. Before removing the quartz tube 3, the driving ring 5 is rotated in the opposite direction, and under the action of the return elastic member 22, the upper part of the clamping jaw 2 is deflected outward to separate the clamping part 6 from the quartz tube 3, and then the quartz tube 3 can be easily removed. The quartz tube 3 rapid positioning and clamping device can realize rapid clamping and positioning of quartz tube 3 products, with accurate and reliable positioning and convenient clamping operation.

[0048] Embodiment 3: A quartz tube fast positioning and clamping device (see attached Figure 7 ), comprises a clamping seat 1 and at least three clamping jaws 2 arranged on the clamping seat 1. In this embodiment, three clamping jaws 2 are evenly distributed in the circumference. The quartz tube 3 is loaded on the clamping seat 1, and the clamping jaws 2 are placed on the periphery of the quartz tube 3. A positioning boss 4 is arranged on the clamping seat 1. The quartz tube 3 is clamped vertically, and the lower end opening of the quartz tube 3 is sleeved on the periphery of the positioning boss 4. A driving ring 5 is installed on the clamping seat 1. The driving ring 5 rotates to push the clamping jaws 2 toward the outer wall of the quartz tube 3 so that the clamping jaws 2 are pressed against the outer wall of the quartz tube 3 to achieve clamping and positioning of the quartz tube 3. An inwardly protruding clamping portion 6 is provided on the upper part of the clamping jaw 2. The clamping portion 6 is arranged on the upper part of the clamping jaw 2, and the clamping portion 6 is clamped on the outer wall of the quartz tube 3. The driving ring 5 is connected to a rotating handle 7, and the rotating handle 7 and the driving ring 5 are fastened by a handle mounting block 8.

[0049] A pressure cap 9 is provided on the clamping seat 1, and the pressure cap 9 is pressed on the driving ring 5 to axially position the driving ring 5. A mounting seat 10 is provided on the clamping seat 1 and corresponds to the clamping jaw 2, and the mounting seat 10 is tightly connected to the pressure cap 9, and the clamping jaw 2 is installed on the mounting seat 10. The driving ring 5 is supported on the mounting seat 10, and an inwardly protruding flange 11 is provided on the inner wall of the pressure cap 9, and the flange 11 is pressed on the driving ring 5. The inner wall of the pressure cap 9 is adapted to fit the outer wall of the driving ring 5, so that the driving ring 5 can rotate smoothly.

[0050] The clamping seat 1 and the mounting seat 10 are provided with positioning pins 12 correspondingly, and the positioning pins 12 are inserted between the clamping seat 1 and the mounting seat 10. The clamping seat 1 is provided with lower plug holes corresponding to the positioning pins 12, and the mounting seat 10 is provided with upper plug holes corresponding to the positioning pins 12. During assembly, the positioning pins 12 are first connected to the lower plug holes on the clamping seat 1, and then the upper plug holes on the mounting seat 10 are aligned with the positioning pins 12 and inserted together, and finally the mounting seat 10 and the clamping seat 1 are fastened together with screws. The gland 9 and the upper end of the mounting seat 10 are fastened by screws.

[0051] Three push bars 13 are arranged on the driving ring 5 and corresponding to the clamping jaws 2. The inner wall of the push bar 13 is arc-shaped. The inner wall of the push bar 13 is offset from one end to the other end along the circumferential direction toward the center of the driving ring 5. The inner wall of the push bar 13 is close to the clamping jaws 2. The push bar 13 and the driving ring 5 are integrally structured, and the push bar 13 is arranged on the inner wall of the driving ring 5.

[0052] The clamping jaw 2 is rotatably arranged, and a return elastic member 22 is installed between the clamping jaw 2 and the clamping seat 1. The driving ring 5 rotates to drive the clamping jaw 2 to deflect and clamp onto the outer wall of the quartz tube 3. A mounting groove 23 is arranged on the mounting seat 10, and the lower part of the clamping jaw 2 is rotatably installed in the mounting groove 23. A rotating shaft is installed in the mounting groove 23, and the clamping jaw 2 is movably plug-in connected with the rotating shaft so that the clamping jaw 2 can rotate. The return elastic member 22 is installed between the bottom of the mounting groove 23 and the bottom of the clamping jaw 2. The return elastic member 22 abuts against the clamping jaw 2 to realize the positioning of the clamping jaw 2, ensuring that the upper outer wall of the clamping jaw 2 is always in contact with the inner wall of the push bar 13. The return elastic member 22 is a spring.

[0053] An auxiliary clamping block 24 is arranged above the clamping jaw 2, and a vertical spring 25 is connected between the auxiliary clamping block 24 and the clamping jaw 2. The auxiliary clamping block 24 includes a positioning ball 26 and a connecting rod 27 connected together, the positioning ball 26 is close to the outer wall of the quartz tube 3, the upper end of the vertical spring 25 is tightly connected to the connecting rod 27, and the lower end of the vertical spring 25 is tightly connected to the upper end of the clamping jaw 2. When the clamping jaw 2 is clamped to the outer wall of the quartz tube 3, the auxiliary clamping block 24 is also clamped to the outer wall of the quartz tube 3, so that two circles of clamping are formed on the outer wall of the quartz tube 3, and the clamping and positioning are accurate and reliable. A vertical spring 25 is connected between the auxiliary clamping block 24 and the clamping jaw 2 to ensure that the auxiliary clamping block 24 can reliably clamp the outer wall of the large quartz tube 3.

[0054] In the initial state, under the action of the return elastic member 22, the outer periphery of the clamping jaw 2 is close to the push bar 13, and the contour of the circle formed by the clamping jaw 2 is larger than the outer contour of the quartz tube 3. When the quartz tube 3 is clamped, the quartz tube 3 is loaded onto the clamping seat 1, the lower end opening of the quartz tube 3 is sleeved on the outer periphery of the positioning boss 4, and the clamping jaw 2 is placed on the outer periphery of the quartz tube 3. Then, the driving ring 5 is rotated by the handle, and the driving ring 5 rotates to make the push bar 13 push the upper part of the clamping jaw 2 to deflect radially inward, so that the clamping part 6 on the clamping jaw 2 is clamped to the outer wall of the quartz tube 3 to achieve the clamping and positioning of the quartz tube 3. When the clamping jaw 2 is clamped to the outer wall of the quartz tube 3, the auxiliary clamping block 24 is also clamped to the outer wall of the quartz tube 3, so that two circles of clamping are formed on the outer wall of the quartz tube 3, and the clamping and positioning are accurate and reliable. Since three clamping jaws 2 are provided, the accurate positioning of the quartz tube 3 is achieved during the radial inward movement of the three clamping jaws 2, and the three-point clamping and positioning are more reliable. Before removing the quartz tube 3, the driving ring 5 is rotated in the reverse direction, and under the action of the return elastic member 22, the upper part of the clamping jaw 2 is deflected outward to separate the clamping part 6 from the quartz tube 3, and then the quartz tube 3 can be easily removed. This quartz tube 3 fast positioning and clamping device can realize fast clamping and positioning of quartz tube 3 products, with accurate and reliable positioning and convenient clamping operation.

[0055] Embodiment 4: A quartz tube fast positioning and clamping device (see attached Figure 8 ), comprises a clamping seat 1 and at least three clamping jaws 2 arranged on the clamping seat 1. In this embodiment, three clamping jaws 2 are evenly distributed in the circumference. The quartz tube 3 is loaded on the clamping seat 1, and the clamping jaws 2 are placed on the periphery of the quartz tube 3. A positioning boss 4 is arranged on the clamping seat 1. The quartz tube 3 is clamped vertically, and the lower end opening of the quartz tube 3 is sleeved on the periphery of the positioning boss 4. A driving ring 5 is installed on the clamping seat 1. The driving ring 5 rotates to push the clamping jaws 2 toward the outer wall of the quartz tube 3 so that the clamping jaws 2 are pressed against the outer wall of the quartz tube 3 to achieve clamping and positioning of the quartz tube 3. An inwardly protruding clamping portion 6 is provided on the upper part of the clamping jaw 2. The clamping portion 6 is arranged on the upper part of the clamping jaw 2, and the clamping portion 6 is clamped on the outer wall of the quartz tube 3. The driving ring 5 is connected to a rotating handle 7, and the rotating handle 7 and the driving ring 5 are fastened by a handle mounting block 8.

[0056] A pressure cap 9 is provided on the clamping seat 1, and the pressure cap 9 is pressed on the driving ring 5 to axially position the driving ring 5. A mounting seat 10 is provided on the clamping seat 1 and corresponds to the clamping jaw 2, and the mounting seat 10 is tightly connected to the pressure cap 9, and the clamping jaw 2 is installed on the mounting seat 10. The driving ring 5 is supported on the mounting seat 10, and an inwardly protruding flange 11 is provided on the inner wall of the pressure cap 9, and the flange 11 is pressed on the driving ring 5. The inner wall of the pressure cap 9 is adapted to fit the outer wall of the driving ring 5, so that the driving ring 5 can rotate smoothly.

[0057] The clamping seat 1 and the mounting seat 10 are provided with positioning pins 12 correspondingly, and the positioning pins 12 are inserted between the clamping seat 1 and the mounting seat 10. The clamping seat 1 is provided with lower plug holes corresponding to the positioning pins 12, and the mounting seat 10 is provided with upper plug holes corresponding to the positioning pins 12. During assembly, the positioning pins 12 are first connected to the lower plug holes on the clamping seat 1, and then the upper plug holes on the mounting seat 10 are aligned with the positioning pins 12 and inserted together, and finally the mounting seat 10 and the clamping seat 1 are fastened together with screws. The gland 9 and the upper end of the mounting seat 10 are fastened by screws.

[0058] Three push bars 13 are arranged on the driving ring 5 corresponding to the clamping jaws 2 . The inner wall of the push bar 13 is arc-shaped. The inner wall of the push bar 13 is offset from one end to the other along the circumferential direction toward the center of the driving ring 5 . The inner wall of the push bar 13 is close to the clamping jaws 2 .

[0059] One end of the push strip 13 is rotatably connected to the drive ring 5. An elastic tensioning member 14 is installed between the push strip 13 and the drive ring 5. The elastic tensioning member 14 is a spring. An adjusting ring 15 is installed on the drive ring 5. The adjusting ring 15 is rotatably arranged. A sinking ring groove 16 is arranged on the drive ring 5. The adjusting ring 15 is rotatably installed in the sinking ring groove 16. The upper end of the drive ring 5 is fastened to a positioning ring 17. The positioning ring 17 covers the adjusting ring 15 to limit the adjusting ring 15. The positioning ring 17 is connected to a locking screw 18. The end of the locking screw 18 abuts against the adjusting ring 15. A top block 19 is arranged on the adjusting ring 15. The top block 19 is pressed against the push strip 13. The adjusting ring 15 rotates so that the top block 19 pushes the push strip 13 to deflect. The inner wall of the push strip 13 is offset from the end rotatably connected to the drive ring 5 to the other end along the circumferential direction toward the center of the drive ring 5. The outer wall of the push bar 13 is offset from the end that is rotatably connected to the drive ring 5 to the other end along the circumferential direction away from the center of the drive ring 5. The top block 19 is pressed against the outer wall of the push bar 13. The elastic tensioning member 14 is a tensioning spring. A guide column 20 is installed on the push bar 13. The drive ring 5 is provided with a guide groove 21 that is adapted to the guide column 20. The guide column 20 is inserted into the guide groove 21. The guide groove 21 is arc-shaped. The center of the arc-shaped guide groove 21 is concentric with the rotation center of the push bar 13. The push bar 13 is rotatably installed on the drive ring 5. The adjustment ring 15 rotates to cause the top block 19 to push the push bar 13 to deflect, thereby realizing the adjustment of the radial pushing amount of the clamp 2 by the push bar 13. The entire clamping device can clamp quartz tubes 3 of different sizes.

[0060] The clamping jaw 2 is rotatably arranged, and a return elastic member 22 is installed between the clamping jaw 2 and the clamping seat 1. The driving ring 5 rotates to drive the clamping jaw 2 to deflect and clamp onto the outer wall of the quartz tube 3. A mounting groove 23 is arranged on the mounting seat 10, and the lower part of the clamping jaw 2 is rotatably installed in the mounting groove 23. A rotating shaft is installed in the mounting groove 23, and the clamping jaw 2 is movably plug-in connected with the rotating shaft so that the clamping jaw 2 can rotate. The return elastic member 22 is installed between the bottom of the mounting groove 23 and the bottom of the clamping jaw 2. The return elastic member 22 abuts against the clamping jaw 2 to realize the positioning of the clamping jaw 2, ensuring that the upper outer wall of the clamping jaw 2 is always in contact with the inner wall of the push bar 13. The return elastic member 22 is a spring.

[0061] An auxiliary clamping block 24 is arranged above the clamping jaw 2, and a vertical spring 25 is connected between the auxiliary clamping block 24 and the clamping jaw 2. The auxiliary clamping block 24 includes a positioning ball 26 and a connecting rod 27 connected together, the positioning ball 26 is close to the outer wall of the quartz tube 3, the upper end of the vertical spring 25 is tightly connected to the connecting rod 27, and the lower end of the vertical spring 25 is tightly connected to the upper end of the clamping jaw 2. When the clamping jaw 2 is clamped to the outer wall of the quartz tube 3, the auxiliary clamping block 24 is also clamped to the outer wall of the quartz tube 3, so that two circles of clamping are formed on the outer wall of the quartz tube 3, and the clamping and positioning are accurate and reliable. A vertical spring 25 is connected between the auxiliary clamping block 24 and the clamping jaw 2 to ensure that the auxiliary clamping block 24 can reliably clamp the outer wall of the large quartz tube 3.

[0062] In the initial state, under the action of the return elastic member 22, the outer periphery of the clamping jaw 2 is close to the push bar 13, and the contour of the circle formed by the clamping jaw 2 is larger than the outer contour of the quartz tube 3. When the quartz tube 3 is clamped, the quartz tube 3 is loaded onto the clamping seat 1, the lower end opening of the quartz tube 3 is sleeved on the outer periphery of the positioning boss 4, and the clamping jaw 2 is placed on the outer periphery of the quartz tube 3. Then, the driving ring 5 is rotated by the handle, and the driving ring 5 rotates to make the push bar 13 push the upper part of the clamping jaw 2 to deflect radially inward, so that the clamping part 6 on the clamping jaw 2 is clamped to the outer wall of the quartz tube 3 to achieve the clamping and positioning of the quartz tube 3. When the clamping jaw 2 is clamped to the outer wall of the quartz tube 3, the auxiliary clamping block 24 is also clamped to the outer wall of the quartz tube 3, so that two circles of clamping are formed on the outer wall of the quartz tube 3, and the clamping and positioning are accurate and reliable. Since three clamping jaws 2 are provided, the accurate positioning of the quartz tube 3 is achieved during the radial inward movement of the three clamping jaws 2, and the three-point clamping and positioning are more reliable. Before removing the quartz tube 3, the driving ring 5 is rotated in the reverse direction, and under the action of the return elastic member 22, the upper part of the clamping jaw 2 is deflected outward to separate the clamping part 6 from the quartz tube 3, and then the quartz tube 3 can be easily removed. This quartz tube 3 fast positioning and clamping device can realize fast clamping and positioning of quartz tube 3 products, with accurate and reliable positioning and convenient clamping operation.

[0063] Embodiment 5: A quartz tube fast positioning and clamping device (see attached Fig. 9), its structure is similar to any one of Examples 1 to 4, the main difference is that in this embodiment, the clamping jaw 2 is arranged to move radially, and a pulling elastic member 28 is installed between the clamping jaw 2 and the clamping seat 1, and the driving ring 5 rotates to drive the clamping jaw 2 to move radially inward and clamp to the outer wall of the quartz tube 3. The mounting seat 10 is provided with a slide groove 29 corresponding to the clamping jaw 2, and the lower part of the clamping jaw 2 is radially slidably installed in the slide groove 29, and the pulling elastic member 28 is a spring, and the pulling elastic member 28 is installed in the slide groove 29. The other structures are the same as any one of Examples 1 to 4. The driving ring 5 rotates to drive the clamping jaw 2 to move radially inward and clamp to the outer wall of the quartz tube 3, which is stable and reliable.

[0064] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A quartz tube rapid positioning and clamping device, characterized in that: It includes a clamping seat and at least three clamping claws arranged on the clamping seat. The quartz tube is loaded on the clamping seat, and the clamping claws are placed on the periphery of the quartz tube. A driving ring is installed on the clamping seat. The driving ring rotates to push the clamping claws toward the outer wall of the quartz tube so that the clamping claws are pressed against the outer wall of the quartz tube to realize the clamping and positioning of the quartz tube.

2. A quartz tube rapid positioning and clamping device according to claim 1, characterized in that: A pressure cover is arranged on the clamping seat, and the pressure cover is pressed on the driving ring to axially position the driving ring.

3. A quartz tube rapid positioning and clamping device according to claim 2, characterized in that: A mounting seat is arranged on the clamping seat corresponding to the clamping claw, the mounting seat is tightly connected with the pressure cover, and the clamping claw is mounted on the mounting seat.

4. The quartz tube rapid positioning and clamping device according to claim 1 is characterized in that: A positioning boss is arranged on the clamping seat, and the lower end opening of the quartz tube is sleeved on the periphery of the positioning boss.

5. The quartz tube rapid positioning and clamping device according to claim 1 is characterized in that: A push bar is arranged on the driving ring corresponding to the clamping jaw, the inner wall of the push bar is arc-shaped, and the inner wall of the push bar is offset from one end to the other end along the circumferential direction toward the center of the driving ring, and the inner wall of the push bar is close to the clamping jaw.

6. A quartz tube rapid positioning and clamping device according to claim 5, characterized in that: One end of the push bar is rotatably connected to the driving ring, an elastic tensioning piece is installed between the push bar and the driving ring, an adjusting ring is installed on the driving ring, the adjusting ring is rotatably set, a top block is set on the adjusting ring, the top block is pressed on the push bar, and the adjusting ring rotates to make the top block push the push bar to deflect.

7. A quartz tube quick positioning and clamping device according to claim 1, characterized in that the clamping claw The rotation setting is performed, and a return elastic member is installed between the clamping jaw and the clamping seat. The driving ring rotates to drive the clamping jaw to deflect and clamp onto the outer wall of the quartz tube.

8. The quartz tube quick positioning and clamping device according to claim 1, characterized in that the clamping claw The radial movement is arranged, a pulling elastic member is installed between the clamping jaws and the clamping seat, and the driving ring rotates to drive the clamping jaws to move radially inward and clamp onto the outer wall of the quartz tube.

9. A quartz tube rapid positioning and clamping device according to any one of claims 1 to 8, characterized in that: An auxiliary clamping block is arranged above the clamping jaw, and a vertical spring is connected between the auxiliary clamping block and the clamping jaw.

10. A quartz tube rapid positioning and clamping device according to any one of claims 1 to 8, characterized in that: The upper part of the clamping claw is provided with a clamping part protruding inwards, and the clamping part is clamped on the outer wall of the quartz tube.

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