CN210046249U - Chuck with a locking mechanism - Google Patents
Chuck with a locking mechanism Download PDFInfo
- Publication number
- CN210046249U CN210046249U CN201920476521.2U CN201920476521U CN210046249U CN 210046249 U CN210046249 U CN 210046249U CN 201920476521 U CN201920476521 U CN 201920476521U CN 210046249 U CN210046249 U CN 210046249U
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- chuck
- clamping
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- sliding block
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Abstract
The utility model relates to a chuck. The chuck includes the body frame, main shaft and fixture, establishes the axial through-hole in the main shaft and wears to establish in order to supply to treat the holder, and the main shaft is installed in the body frame, and fixture includes chassis and centre gripping subassembly, and the chassis cover is located on the main shaft, and the centre gripping subassembly is equipped with a plurality of and interval setting, and the centre gripping subassembly includes jack catch, slider and clamp plate, and the jack catch is installed on the slider, has seted up the sliding tray on the chassis, and the slider slides and sets up in the sliding tray, and the clamp plate is installed on the chassis and is supported. In the chuck, the sliding block is arranged on the chassis in a sliding mode and fixed by the pressing plate, the gap between the sliding block and the sliding groove is adjusted through match grinding of the pressing plate, the self-centering precision of the chuck is prevented from being influenced due to the fact that the sliding block with the too large fit gap is not loose, the clamping jaw cannot be clamped or cannot be loosened easily due to the fact that the sliding block with the too small gap does not run smoothly, the clamping precision of the chuck is improved, meanwhile, the pressing plate can be replaced through long-time moving abrasion of the sliding block in the chassis, and.
Description
Technical Field
The utility model relates to a laser pipe cutting machine processing field especially relates to chuck.
Background
When the pipe is cut by the laser, the laser head does not move relative to the axial direction of the pipe, the pipe needs to be clamped by the chuck, and meanwhile, the axial movement relative to the laser head and the rotation relative to the laser head are realized, so that the purpose of continuous processing and feeding is realized.
Due to the structure of the conventional chuck, the clamping precision of the pipe cannot meet the machining requirement.
SUMMERY OF THE UTILITY MODEL
Accordingly, it is necessary to provide a chuck having high accuracy in clamping a pipe.
A chuck, comprising:
a main frame;
the main shaft is internally provided with an axial through hole for a to-be-clamped piece to penetrate through, and the main shaft is arranged in the main frame; and
the clamping mechanism comprises a chassis and clamping components, the chassis is sleeved on the main shaft, the clamping components are arranged at intervals and comprise clamping claws, a sliding block and a pressing plate, the clamping claws are mounted on the sliding block, a sliding groove is formed in the chassis, the sliding block is arranged in the sliding groove in a sliding mode, and the pressing plate is mounted on the chassis and abuts against the sliding block.
In the chuck, the sliding block is arranged on the chassis in a sliding mode and fixed by the pressing plate, the gap between the sliding block and the sliding groove is adjusted through match grinding of the pressing plate, the self-centering precision of the chuck is prevented from being influenced due to the fact that the sliding block with the too large fit gap is not loose, the clamping jaw cannot be clamped or cannot be loosened easily due to the fact that the sliding block with the too small gap does not run smoothly, the clamping precision of the chuck is improved, meanwhile, the pressing plate can be replaced through long-time moving abrasion of the sliding block in the chassis, and.
In one embodiment, a guide groove is defined by part of the pressing plate and the side wall of the sliding groove, and two sides of the sliding block are clamped in the guide groove.
In one embodiment, a graduated scale is arranged on the pressure plate, and marks for positioning the graduated scale are arranged on the sliding block.
In one embodiment, the clamping assembly further includes a first roller and a second roller, a clamping cavity is formed at one end of the clamping jaw, which is close to the axis of the chassis, and the first roller and the second roller are mounted on opposite side walls of the clamping cavity and are correspondingly arranged in position.
In one embodiment, the clamping jaw comprises a first bracket, a second bracket and a connecting block, the first bracket and the second bracket are oppositely arranged and are connected through the connecting block to enclose the clamping cavity, the first roller is mounted on the first bracket, and the second roller is mounted on the second bracket.
In one embodiment, a positioning hole is formed in one side, close to the base plate, of the pressing plate, and a positioning column matched with the positioning hole is arranged on the base plate and is connected with the positioning hole in a matched mode.
In one embodiment, the adjusting device further comprises an adjusting assembly and a threaded hole, wherein one end, far away from the main shaft, of the sliding block is provided with the threaded hole, the adjusting assembly comprises a mounting plate and a screw rod, the mounting plate is fixed in the sliding groove, one end of the screw rod is in threaded connection with the threaded hole, and the other end of the screw rod is in rotary connection with the mounting plate.
In one embodiment, the main shaft is provided with a through hole for the to-be-clamped piece to penetrate through, the diameter of the through hole is 200mm, and the clamping assembly can clamp the to-be-clamped piece with the diameter being 20mm at the minimum.
In one embodiment, the main frame is provided with a mounting hole, the spindle is rotatably arranged in the mounting hole, and the chuck further comprises a rotating mechanism which can drive the spindle to rotate relative to the mounting hole.
In one embodiment, the rotating mechanism includes a synchronizing wheel, a driving member and a bearing, the bearing is fixed in the mounting hole, the main shaft is mounted in the bearing, the synchronizing wheel is sleeved and fixed on the main shaft, and the driving member can drive the synchronizing wheel to rotate.
Drawings
FIG. 1 is a schematic diagram of a chuck according to an embodiment;
FIG. 2 is an exploded view of the chuck shown in FIG. 1;
FIG. 3 is a top view of the chuck as shown in FIG. 1;
FIG. 4 is a cross-sectional view of a platen in the chuck as shown in FIG. 1;
FIG. 5 is a schematic view of the structure of the jaws in the chuck shown in FIG. 1;
FIG. 6 is a schematic view of the maximum gripping dimension of the chuck shown in FIG. 1;
fig. 7 is a schematic view of the minimum gripping dimension of the chuck shown in fig. 1.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a chuck 10 according to an embodiment is used for clamping, fixing and rotating a member to be clamped in a laser cutting process. In particular, the piece to be clamped may be a tube.
The chuck 10 includes a main frame 100, a spindle 200, and a chucking mechanism 300. The main shaft 200 is provided with an axial through hole 210 for the member to be clamped to pass through, and the main shaft 200 passes through the main frame 100. Referring to fig. 2, the clamping mechanism 300 includes a base plate 310 and a clamping assembly 320, wherein the clamping assembly 320 is provided with a plurality of through holes 210 spaced around the spindle 200. The chassis 310 is sleeved on the main shaft 200 and flush with the through hole 210 of the main shaft 200, so as to prevent the clamping assembly 320 from interfering with the main shaft 200 and affecting the clamping effect of the clamping assembly 320 on the to-be-clamped member penetrating through the main shaft 200.
The clamping assembly 320 includes a jaw 321, a slider 322, and a pressure plate 323. The chassis 310 is provided with a sliding groove 311, the sliding block 322 is slidably disposed in the sliding groove 311, the clamping jaws 321 are mounted on the sliding block 322, the sliding of the sliding block 322 drives the clamping jaws 321 to be close to or far away from a to-be-clamped piece, and the clamping jaws 321 on the clamping components 320 can be mutually matched to clamp or loosen the to-be-clamped piece. The pressing plate 323 is mounted on the chassis 310 and abuts against the slider 322, thereby pressing the slider 322.
Note that, the side wall of the sliding groove 311 may be shaped like a "U", and both sides of the slider 322 are engaged with the side walls of the sliding groove 311, so as to press the slider 322 instead of the pressing plate 323.
In the chuck 10, the sliding block 322 is slidably arranged on the chassis 310 and fixed by the pressing plate 323, the gap between the sliding block 322 and the chute can be adjusted by the pressing plate 323 through matched grinding, so that the self-centering precision of the chuck 10 is prevented from being influenced by the looseness of the sliding block 322 with too large fit gap, and the clamping of the clamping jaw 321 is not tight or difficult to loosen due to the unsmooth running of the sliding block 322 with too small gap, and the like, so that the clamping precision of the chuck 10 is improved, meanwhile, the problem that the sliding block 322 is worn by moving in the chassis 310 for a long time can be solved by replacing.
Referring to fig. 1 and 3, in one embodiment, four clamping assemblies 320 are disposed on the base plate 310, and the base plate 310 is circular. Four sliding grooves 311 are formed in the base plate 310, the sliding grooves 311 are arranged in pairs in an opposite manner, and the area of the base plate 310 is divided into four equal parts by connecting lines of the sliding grooves 311 arranged in pairs in an opposite manner. Meanwhile, the four sliding blocks 322 which are slidably arranged in the sliding groove 311 are also arranged, the four sliding blocks 322 are uniformly arranged around the circumference of the base plate 310, and the two sliding blocks 322 are oppositely arranged, so that the clamping component 320 arranged on the sliding blocks 322 can clamp the to-be-clamped piece from four directions, and the stability is better.
In one embodiment, a part of the pressing plate 323 covers the sliding slot 311 to form a guide slot 312 with the side wall of the sliding slot 311, and two sides of the slider 322 are clamped in the guide slot 312 to press the slider 322, so as to improve the stability of the matching between the slider 322 and the sliding slot 311.
Referring to fig. 4, in an embodiment, a positioning hole 324 is formed in a side of the pressing plate 323 close to the chassis 310, and a positioning column (not shown) matched with the positioning hole 324 is disposed on the chassis 310, and the positioning column is matched and connected with the positioning hole 324, so as to accurately position the pressing plate 323 and the chassis 310, and prevent the assembling position of the pressing plate 323 and the chassis 310 from being changed during maintenance and repair, which affects the adjustment precision. When the pressing plate 323 is mounted on the chassis 310, the positioning is performed through the matching of the positioning hole 324 and the positioning column, and after the positioning is performed accurately, the fixing is performed through a fastener, wherein the fastener can be a screw, a bolt and the like.
In one embodiment, the pressure plate 323 is provided with a scale, and the slide block 322 is provided with marks for positioning the scale. Through the scale on the clamp plate 323, can accurate adjustment slider 322 gliding distance to carry out accurate location to jack catch 321. The marks on the slider 322 may be in the form of straight lines or arrows.
Referring to fig. 5, in one embodiment, the clamping assembly 320 further includes a first roller 325 and a second roller 326. A clamping cavity 3211 is formed at one end of the jaw 321 close to the axis of the chassis 310, and the first roller 325 and the second roller 326 are installed on opposite sidewalls of the clamping cavity 3211 and are correspondingly disposed in position, so that a height difference is formed between the first roller 325 and the second roller 326. The first roller 325 and the second roller 326 which are arranged at intervals and have different heights can be in double-line contact with the to-be-clamped piece, the positioning precision is high, the rigidity is better, and the slender to-be-clamped piece is effectively prevented from swinging greatly.
In one embodiment, the pawl 321 includes a first bracket 3212, a second bracket 3213, and a connecting block 3214. The first bracket 3212 and the second bracket 3213 are disposed oppositely and connected through a connecting block 3214 to enclose a clamping cavity 3211, the first roller 325 is mounted on the first bracket 3212, and the second roller 326 is mounted on the second bracket 3213. A kidney-shaped hole 3214 is formed in the second bracket 3213, and an opening is formed at one end of the connecting block 3214 and is matched with the kidney-shaped hole 3214 to adjust the second bracket 3213 along the radial direction. In some cases, the second roller 326 cannot contact the member to be clamped due to the change of the pipe diameter of the member to be clamped. The second roller 326 is designed to be capable of being slightly adjusted in the radial direction relative to the first roller 325, so that the first roller 325 and the second roller 326 can both contact with the pipe when the clamping piece is clamped, the clamping piece is prevented from rotating and swinging, and the cutting precision of the laser pipe cutting machine is effectively improved.
Referring again to fig. 2, in one embodiment, the chuck 10 further includes an adjustment assembly 400, the adjustment assembly 400 including a mounting plate 410 and a threaded rod 420. The mounting plate 410 is fixed in the sliding groove 311, a threaded hole (not shown) is formed in one end of the slider 322, which is away from the spindle 200, one end of the screw rod 420 is in threaded connection with the threaded hole 3221, and the other end is rotatably connected with the mounting plate 410. Specifically, a through hole is formed in the mounting plate 410, the screw rod 420 is inserted into the through hole, two abutting pieces are fixed on the screw rod 420, and the two abutting pieces abut against openings at two ends of the through hole respectively to limit the axial movement of the screw rod 420, so that the screw rod 420 can only rotate in the mounting plate 410. By rotating the screw rod 420, the slider 322 can be driven to slide relative to the sliding slot 311, thereby adjusting the distance between the clamping assembly 320 and the through hole 210 of the spindle 200. Further, a wrench 430 may be installed at an end of the screw 420 remote from the main shaft 200 to facilitate adjustment of the screw 420.
Referring to fig. 6 and 7, in an embodiment, the length of the diameter a of the through hole 210 is not greater than 200mm, further, the length of the diameter a of the through hole 210 may be set to 200mm, and the length of the diameter b of the inscribed circle surrounded by the maximum distance of the clamping assembly 320 close to the spindle 200 is 20mm, so that the clamping range of the chuck 10 for the tube is 20mm to 200mm, the application range is wide, the tube clamping range of the existing chuck 10 is only 20-150mm, and the tube with the diameter greater than 150mm cannot be clamped, and the processing requirement of a customer cannot be well met.
Referring again to fig. 1 and 2, in one embodiment, the main frame 100 defines mounting holes 110. The main shaft 200 is rotatably disposed in the mounting hole 110. The chuck 10 further includes a rotating mechanism 500, and the rotating mechanism 500 can drive the spindle 200 to rotate relative to the mounting hole 110.
Further, the rotating mechanism 500 includes a synchronizing wheel 510, a driving member (not shown), and a bearing 520. The bearing 520 is fixed in the mounting hole 110, and the main shaft 200 is mounted in the bearing 520 to realize the rotation of the main shaft 200 relative to the main frame 100. The synchronizing wheel 510 is sleeved and fixed on the main shaft 200, and the driving member can drive the synchronizing wheel 510 to rotate. Further, a screw hole is processed on the synchronizing wheel 510, and the synchronizing wheel 510 is sleeved on the main shaft 200 and fixed by a fastener in cooperation with the screw hole. The driving piece output end cover is equipped with the gear, and the gear passes through synchronous belt drive with synchronizing wheel 510 to be connected, and the driving piece can be the motor, and the operation driving piece drives synchronizing wheel 510 and rotates, drives main shaft 200 through synchronizing wheel 510 and rotates, realizes treating the cutting process of holder.
In one embodiment, the protective assembly 600 is further included, and the protective assembly 600 includes a connection seat 610 and an outer cover 620. The connecting seat 610 is fixed on the main frame 100, a connecting hole (not shown) is further formed in the connecting seat 610, and the outer cover 620 is fixed on the connecting seat 610 through the matching of a screw and the connecting hole, so that the dustproof protection effect is achieved.
It should be noted that the mounting hole 110 on the main frame 100 provides a mounting position for the spindle 200, the clamping mechanism 300 is mounted on the main frame 100 through the cooperation between the side wall of the main frame 100 and the spindle 200, and meanwhile, the rotating mechanism 500 makes the overall structure of the chuck 10 compact and has high stability through the mounting hole 110 formed on the main frame 100. Further, the main frame 100 is integrally formed to ensure the dimensional accuracy and the positional accuracy, and further, the accuracy of the mounting connection with the clamping mechanism 300 and the rotating mechanism.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A chuck, comprising:
a main frame;
the main shaft is internally provided with an axial through hole for a to-be-clamped piece to penetrate through, and the main shaft is arranged in the main frame; and
the clamping mechanism comprises a chassis and clamping components, the chassis is sleeved on the main shaft, the clamping components are arranged at intervals and comprise clamping claws, a sliding block and a pressing plate, the clamping claws are mounted on the sliding block, a sliding groove is formed in the chassis, the sliding block is arranged in the sliding groove in a sliding mode, and the pressing plate is mounted on the chassis and abuts against the sliding block.
2. The chuck according to claim 1, wherein a portion of the pressure plate and the side wall of the sliding groove define a guide groove, and two sides of the sliding block are clamped in the guide groove.
3. The chuck as set forth in claim 1, wherein the pressure plate is provided with a scale, and the slide block is provided with marks for positioning the scale.
4. The chuck according to claim 1, wherein the clamping assembly further comprises a first roller and a second roller, a clamping cavity is formed at one end of the clamping jaw close to the axis of the chassis, and the first roller and the second roller are mounted on opposite sidewalls of the clamping cavity and are correspondingly arranged.
5. The chuck according to claim 4, wherein the jaws include a first bracket, a second bracket and a connecting block, the first bracket is disposed opposite to the second bracket and connected by the connecting block to enclose the clamping cavity, the first roller is mounted on the first bracket, and the second roller is mounted on the second bracket.
6. The chuck according to claim 1, wherein a positioning hole is formed on a side of the pressing plate close to the bottom plate, and a positioning post matched with the positioning hole is formed on the bottom plate and is connected with the positioning hole in a matching manner.
7. The chuck according to claim 1, further comprising an adjusting assembly, wherein a threaded hole is formed in one end of the slider away from the spindle, the adjusting assembly comprises a mounting plate and a screw rod, the mounting plate is fixed in the sliding groove, one end of the screw rod is in threaded connection with the threaded hole, and the other end of the screw rod is in rotational connection with the mounting plate.
8. The chuck according to claim 1, wherein the spindle is provided with a through hole for the to-be-clamped member to pass through, the through hole has a diameter of 200mm, and the clamping assembly can clamp the to-be-clamped member having a diameter of at least 20 mm.
9. The chuck according to claim 1, wherein the main frame defines a mounting hole, the spindle is rotatably disposed in the mounting hole, and the chuck further comprises a rotating mechanism capable of driving the spindle to rotate relative to the mounting hole.
10. The chuck according to claim 9, wherein the rotating mechanism includes a synchronizing wheel, a driving member and a bearing, the bearing is fixed in the mounting hole, the spindle is mounted in the bearing, the synchronizing wheel is sleeved on and fixed to the spindle, and the driving member can drive the synchronizing wheel to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476521.2U CN210046249U (en) | 2019-04-08 | 2019-04-08 | Chuck with a locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476521.2U CN210046249U (en) | 2019-04-08 | 2019-04-08 | Chuck with a locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210046249U true CN210046249U (en) | 2020-02-11 |
Family
ID=69379489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920476521.2U Active CN210046249U (en) | 2019-04-08 | 2019-04-08 | Chuck with a locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210046249U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658467A (en) * | 2021-01-07 | 2021-04-16 | 华中科技大学 | Two-jaw chuck suitable for thin-wall pipe fitting laser cutting equipment |
| CN112658468A (en) * | 2021-01-07 | 2021-04-16 | 华中科技大学 | Coordination clamping chuck with V-shaped groove claw head |
| CN113828816A (en) * | 2021-10-25 | 2021-12-24 | 武汉市工程科学技术研究院 | Slender pipe clamping chuck |
| CN113857766A (en) * | 2021-11-16 | 2021-12-31 | 广东大鼎智能装备有限公司 | Barrel clamping type chuck for laser pipe cutting machine |
| CN113894721A (en) * | 2021-10-25 | 2022-01-07 | 武汉市工程科学技术研究院 | Slender pipe rotating and clamping mechanism and slender pipe processing equipment |
| CN114251546A (en) * | 2020-09-25 | 2022-03-29 | 广东思锐光学股份有限公司 | Clamping mechanism and cloud platform |
-
2019
- 2019-04-08 CN CN201920476521.2U patent/CN210046249U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251546A (en) * | 2020-09-25 | 2022-03-29 | 广东思锐光学股份有限公司 | Clamping mechanism and cloud platform |
| CN112658467A (en) * | 2021-01-07 | 2021-04-16 | 华中科技大学 | Two-jaw chuck suitable for thin-wall pipe fitting laser cutting equipment |
| CN112658468A (en) * | 2021-01-07 | 2021-04-16 | 华中科技大学 | Coordination clamping chuck with V-shaped groove claw head |
| CN112658468B (en) * | 2021-01-07 | 2022-05-20 | 华中科技大学 | Coordinated clamping chuck with V-shaped groove claw heads |
| CN112658467B (en) * | 2021-01-07 | 2022-05-20 | 华中科技大学 | Two-jaw chuck suitable for thin-wall pipe laser cutting equipment |
| CN113828816A (en) * | 2021-10-25 | 2021-12-24 | 武汉市工程科学技术研究院 | Slender pipe clamping chuck |
| CN113894721A (en) * | 2021-10-25 | 2022-01-07 | 武汉市工程科学技术研究院 | Slender pipe rotating and clamping mechanism and slender pipe processing equipment |
| CN113857766A (en) * | 2021-11-16 | 2021-12-31 | 广东大鼎智能装备有限公司 | Barrel clamping type chuck for laser pipe cutting machine |
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