CN222036842U - A clamping mechanism for fixing cylindrical workpieces in CNC machine tools - Google Patents
A clamping mechanism for fixing cylindrical workpieces in CNC machine tools Download PDFInfo
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- CN222036842U CN222036842U CN202420753797.1U CN202420753797U CN222036842U CN 222036842 U CN222036842 U CN 222036842U CN 202420753797 U CN202420753797 U CN 202420753797U CN 222036842 U CN222036842 U CN 222036842U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 39
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 10
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 10
- 241001330002 Bambuseae Species 0.000 claims description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 10
- 239000011425 bamboo Substances 0.000 claims description 10
- 230000006978 adaptation Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
本实用新型提供了一种CNC机床固定柱形工件用夹持机构，属于机床加工技术领域。包括底板，底板上竖直间隔设置有第一安装架和第二安装架，第一安装架靠近第二安装架的一侧转动设置有安装筒，安装筒靠近第二安装架的一端沿周向可拆卸连接有多个安装块，多个安装块上沿安装筒径向均滑动连接有用于共同夹持柱形工件底部的定位柱，第一安装架上设有用于驱使安装筒转动的第一驱动件，安装块上设有用于驱使多个定位柱同步滑移的第二驱动件。本申请的一种CNC机床固定柱形工件用夹持机构，不仅能够夹持多种型号的柱形工件，还具有提高对柱形工件夹持效果的优点。
The utility model provides a clamping mechanism for fixing cylindrical workpieces in a CNC machine tool, belonging to the field of machine tool processing technology. It comprises a base plate, on which a first mounting frame and a second mounting frame are vertically spaced apart, a mounting cylinder is rotatably provided on the side of the first mounting frame close to the second mounting frame, and a plurality of mounting blocks are detachably connected along the circumferential direction at one end of the mounting cylinder close to the second mounting frame, and a plurality of mounting blocks are slidably connected along the radial direction of the mounting cylinder with positioning columns for jointly clamping the bottom of the cylindrical workpiece, a first driving member for driving the mounting cylinder to rotate is provided on the first mounting frame, and a second driving member for driving the plurality of positioning columns to slide synchronously is provided on the mounting block. The clamping mechanism for fixing cylindrical workpieces in a CNC machine tool of the present application can not only clamp various types of cylindrical workpieces, but also has the advantage of improving the clamping effect on the cylindrical workpiece.
Description
Technical Field
The utility model relates to the technical field of machine tool machining, in particular to a clamping mechanism for fixing a cylindrical workpiece by a CNC machine tool.
Background
In machining, it is often necessary to use a CNC machine to machine a workpiece, and prior to machining, a clamping mechanism is required to secure the workpiece to be machined, and then the machine is started to machine the workpiece by a tool.
When processing a cylindrical workpiece, a traditional CNC machine tool usually adopts a three-jaw chuck to clamp the bottom of the workpiece, and then carries out grinding processing on the top and the outer wall of the cylindrical workpiece through various cutters. However, when a polygonal cylindrical workpiece is processed, three clamping blocks of the three-jaw chuck are difficult to face each side wall of the bottom of the cylindrical workpiece, and the problem of insufficient clamping effect exists.
Disclosure of utility model
In view of the above, the present utility model provides a clamping mechanism for fixing a cylindrical workpiece for a CNC machine tool.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a fixed cylindricality fixture for work piece of CNC lathe, comprising a base plate, vertical interval is provided with first mounting bracket and second mounting bracket on the bottom plate, one side rotation that first mounting bracket is close to the second mounting bracket is provided with the installation section of thick bamboo, the one end that the installation section of thick bamboo is close to the second mounting bracket is followed circumference and is dismantled and be connected with a plurality of installation pieces, radially all sliding connection has the reference column that is used for centre gripping cylindricality work piece bottom jointly along the installation section of thick bamboo on a plurality of installation pieces, be equipped with on the first mounting bracket and be used for driving installation section of thick bamboo pivoted first driving piece, be equipped with the second driving piece that is used for driving a plurality of reference columns to slide in step on the installation piece.
Further, the second mounting bracket is provided with the mounting panel along mounting cylinder axial sliding, is equipped with the third driving piece that is used for driving the mounting panel to remove on the second mounting bracket, rotates on the mounting panel and is provided with the carousel, is equipped with the clamping piece that is used for centre gripping cylindricality work piece top on the carousel.
Further, the clamping piece comprises a pneumatic clamping jaw, a cylinder body of the pneumatic clamping jaw is arranged on the turntable, and two clamping jaws of the pneumatic clamping jaw slide oppositely along the radial direction of the turntable.
Further, a bracket for placing the cylindrical workpiece is arranged on the bottom plate in a vertical sliding mode between the first installation frame and the second installation frame, and a fourth driving piece for driving the bracket to lift is arranged on the bottom plate.
Further, the first driving piece comprises a first driving motor, the first driving motor is arranged on the first mounting frame, and an output shaft of the first motor is fixedly connected with the mounting cylinder in a coaxial manner; the second driving piece comprises a fluted disc, the fluted disc is coaxially and rotatably arranged at one end of the mounting barrel, which is close to the second mounting frame, a gear which is used for being meshed with the fluted disc is arranged on the mounting block, the positioning column comprises a square section and a thread section, a first threaded hole with the size matched with that of the thread section is formed in one side of the mounting block, which is close to the axis of the mounting barrel, the square section is coaxially and slidably arranged at the axis position of the gear in a penetrating way, the thread section is in threaded connection with the first threaded hole and penetrates out of the mounting block, and a second driving motor which is used for driving the fluted disc to rotate is arranged in the mounting barrel; the third driving piece comprises a first electric push rod, the first electric push rod is arranged on the second mounting frame, and the mounting plate is arranged at the movable end of the first electric push rod; the fourth driving piece comprises a second electric push rod, the second electric push rod is arranged on the bottom plate and located between the first installation frame and the second installation frame, and the bracket is arranged at the movable end of the second electric push rod.
Further, a connecting piece for connecting the installation block is arranged on the installation barrel, the connecting piece comprises a positioning bolt, one end, close to the second installation frame, of the installation barrel is provided with a plurality of second threaded holes with sizes being matched with the positioning bolt along the circumferential direction of the installation barrel, the installation block is provided with a through hole for the positioning bolt to pass through, and the positioning bolt is in threaded connection with the corresponding second threaded hole after passing through the through hole.
The beneficial effects of the utility model are as follows: for a cylindrical workpiece, at least three mounting blocks can be mounted on a mounting cylinder, then a second driving piece is started to enable a plurality of positioning columns to clamp the outer wall of the bottom of the cylindrical workpiece together, and finally a first driving piece is started to drive the cylindrical workpiece to rotate along with the mounting cylinder for processing of a cutter; for polygonal cylindrical workpieces, the installation blocks with the number corresponding to that of the polygonal cylindrical workpiece side walls one by one can be installed along the circumferential direction of the installation cylinder, so that the positioning columns on each installation block can be just opposite to the polygonal cylindrical workpiece side walls, and then the second driving piece is started to enable the positioning columns to jointly clamp each side wall at the bottom of the workpiece for cutter processing, so that the cylindrical workpieces with various models can be clamped, and the clamping effect is improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a clamping mechanism for fixing a cylindrical workpiece for a CNC machine according to an embodiment of the present application.
Fig. 2 is a schematic view of another view angle structure of a clamping mechanism for fixing a cylindrical workpiece for a CNC machine according to an embodiment of the present application.
Fig. 3 is an enlarged partial schematic view of the portion a in fig. 1.
Fig. 4 is a schematic structural view of a second driving member of a clamping mechanism for fixing a cylindrical workpiece by a CNC machine according to an embodiment of the present application.
Wherein, 1, the bottom plate; 11. a first mounting frame; 12. a second mounting frame; 2. a mounting cylinder; 3. a mounting block; 4. positioning columns; 5. a first driving member; 6. a second driving member; 61. fluted disc; 62. a gear; 7. a mounting plate; 71. a turntable; 8. a third driving member; 9. a clamping member; 10. a bracket; 20. a fourth driving member; 30. and a connecting piece.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
The embodiment of the application discloses a clamping mechanism for fixing a cylindrical workpiece of a CNC machine tool, which comprises a bottom plate 1, wherein a first mounting frame 11 and a second mounting frame 12 are connected to the bottom plate 1 through vertical interval bolts, and referring to fig. 1, 2 and 3. One side rotation that first mounting bracket 11 is close to second mounting bracket 12 is provided with mounting cylinder 2, and mounting cylinder 2 is close to the one end of second mounting bracket 12 along circumference detachably connected with a plurality of installation piece 3, along mounting cylinder 2 radial all sliding connection have the reference column 4 that is used for centre gripping cylindricality work piece bottom jointly on a plurality of installation piece 3. The first mounting frame 11 is provided with a first driving piece 5 for driving the mounting cylinder 2 to rotate, and the mounting block 3 is provided with a second driving piece 6 for driving the positioning columns 4 to slide synchronously.
In the embodiment of the application, for a cylindrical workpiece, at least three mounting blocks 3 can be mounted on the mounting cylinder 2, then the second driving piece 6 is started to enable the plurality of positioning columns 4 to clamp the outer wall of the bottom of the cylindrical workpiece together, and finally the first driving piece 5 is started to drive the cylindrical workpiece to rotate along with the mounting cylinder 2 for processing of a cutter; for polygonal cylindrical workpieces, the mounting blocks 3 with the number corresponding to that of the side walls of the polygonal cylindrical workpieces can be mounted along the circumferential direction of the mounting cylinder 2, so that the positioning columns 4 on each mounting block 3 can be opposite to the side walls of the polygonal cylindrical workpieces, and then the plurality of positioning columns 4 can jointly clamp each side wall of the bottom of each workpiece by starting the second driving piece 6 for cutter processing. The clamping mechanism disclosed by the application not only can clamp cylindrical workpieces of various types, but also has the advantage of improving the clamping effect.
Further, the second mounting frame 12 is provided with the mounting plate 7 in a sliding manner along the axial direction of the mounting cylinder 2, and a third driving member 8 for driving the mounting plate 7 to move is mounted on the second mounting frame 12. The mounting plate 7 is rotatably provided with a turntable 71, and the turntable 71 is provided with a clamping member 9 for clamping the top of the cylindrical workpiece.
In the embodiment of the present application, when the plurality of positioning columns 4 jointly clamp the cylindrical workpiece, the start tool can process the top of the cylindrical workpiece first, after the processing of the top of the cylindrical workpiece is completed, the third driving member 8 drives the mounting plate 7 to move and approach the cylindrical workpiece, and then the clamping member 9 starts and clamps the top of the cylindrical workpiece. At this time, the bottom and the top of the cylindrical workpiece are respectively clamped and fixed by the positioning column 4 and the clamping piece 9, so that the stability of the cylindrical workpiece during outer wall processing can be further improved.
Specifically, the clamping member 9 includes a pneumatic clamping jaw, a cylinder body of the pneumatic clamping jaw is bolted to the turntable 71, and two clamping jaws of the pneumatic clamping jaw slide in opposite directions along the radial direction of the turntable 71.
In actual production, the top shape of the cylindrical workpiece to be processed is different due to different process requirements. Thus, by the pneumatic clamping jaw, it is possible to clamp cylindrical workpiece tops of various shapes.
Because the partial cylindrical workpiece has a large size and heavy weight, the workpiece personnel needs to hold the cylindrical workpiece and place the bottom of the workpiece at the axle center of the mounting cylinder 2, rotate the cylindrical workpiece so that the side walls are opposite to the positioning columns 4 on the mounting block 3 one by one, and then start the second driving piece 6 so that the plurality of positioning columns 4 can clamp the cylindrical workpiece together. In order to reduce the labor intensity of workers, a bracket 10 for placing cylindrical workpieces is vertically arranged on the base plate 1 in a sliding manner between the first mounting frame 11 and the second mounting frame 12, and a fourth driving piece 20 for driving the bracket 10 to lift is arranged on the base plate 1.
The cylindrical workpiece with larger size and weight is horizontally placed on the bracket 10, the bracket 10 can be driven to ascend by starting the fourth driving piece 20 so that the cylindrical workpiece can be moved to the axle center of the mounting cylinder 2, the side walls of the cylindrical workpiece can be directly opposite to the positioning columns 4 on the mounting block 3 one by one only by manually rotating the cylindrical workpiece by a worker, and the cylindrical workpiece can be fixed by starting the second driving piece 6. After the fixing is completed, the bracket 10 can be driven to descend to return to the original position by the fourth driving member 20.
Specifically, the first driving member 5 includes a first driving motor mounted on the first mounting frame 11, and an output shaft of the first motor is coaxially bolted to the mounting cylinder 2. The first driving motor needs to adopt a motor with a band-type brake function.
Referring to fig. 4, the second driving member 6 includes a toothed disc 61, and the toothed disc 61 is coaxially rotatably provided at one end of the mounting cylinder 2 near the second mounting frame 12. The mounting block 3 is provided with a groove on one side close to the mounting cylinder 2, and a gear 62 for meshing with the fluted disc 61 is arranged in the groove. The positioning column 4 comprises a square section and a thread section, one side of the mounting block 3, which is close to the axis of the mounting cylinder 2, is provided with a threaded hole communicated with the groove, and the size of the threaded hole is matched with the thread section. The axle center of the gear 62 is penetrated and provided with a square hole with the size matched with that of the square section, the square section coaxially slides and penetrates through the square hole, and the threaded section is in threaded connection with the first threaded hole and penetrates out of the mounting block 3. A second driving motor is arranged in the mounting cylinder 2, and an output shaft of the second driving motor is fixed with the fluted disc 61 in a coaxial welding way. The second driving motor can drive the fluted disc 61 to rotate so as to enable the plurality of gears 62 to rotate simultaneously, and further enable the positioning column 4 to synchronously move so as to jointly clamp the bottom of the cylindrical workpiece.
The third driving member 8 comprises a first electric push rod which is arranged on the second mounting frame 12, and the mounting plate 7 is connected with the movable end of the first electric push rod through bolts. The moving distance of the mounting plate 7 can be adjusted through the first electric push rod, so that the pneumatic clamping jaw can clamp the tops of cylindrical workpieces with various lengths.
The fourth driving member 20 includes a second electric putter mounted on the base plate 1 between the first mounting frame 11 and the second mounting frame 12, and the bracket 10 is bolted to the movable end of the second electric putter. The moving distance of the bracket 10 can be adjusted through the second electric push rod, so that the cylindrical workpiece on the bracket 10 can be opposite to the axle center of the mounting cylinder 2.
Specifically, the mounting cylinder 2 is mounted with a connector 30 for connecting the mounting block 3. The connecting piece 30 comprises a positioning bolt, one end of the mounting cylinder 2, which is close to the second mounting frame 12, is provided with a plurality of second threaded holes with the sizes being matched with the positioning bolt along the circumferential direction, the mounting block 3 is provided with a through hole for the positioning bolt to pass through, and the positioning bolt is in threaded connection with the corresponding second threaded hole after passing through the through hole. The mounting block 3 is connected to the mounting cylinder 2 through a positioning bolt.
The embodiment of the application provides a clamping mechanism for fixing a cylindrical workpiece of a CNC machine tool, which comprises the following implementation principles: for a cylindrical workpiece, at least three mounting blocks 3 can be mounted on the mounting cylinder 2, then the second driving piece 6 is started to enable the plurality of positioning columns 4 to clamp the outer wall of the bottom of the cylindrical workpiece together, and finally the first driving piece 5 is started to drive the cylindrical workpiece to rotate along with the mounting cylinder 2 for processing of a cutter; for polygonal cylindrical workpieces, the mounting blocks 3 with the number corresponding to that of the side walls of the polygonal cylindrical workpieces can be mounted along the circumferential direction of the mounting cylinder 2, so that the positioning columns 4 on each mounting block 3 can be opposite to the side walls of the polygonal cylindrical workpieces, and then the plurality of positioning columns 4 can jointly clamp each side wall of the bottom of each workpiece by starting the second driving piece 6 for cutter processing. The clamping mechanism disclosed by the application not only can clamp cylindrical workpieces of various types, but also has the advantage of improving the clamping effect.
It will be apparent to those skilled in the art that while preferred embodiments of the present utility model have been described, additional variations and modifications may be made to these embodiments once the basic inventive concepts are known to those skilled in the art. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (6)
1. Clamping mechanism for CNC machine tool fixed cylindrical workpiece, which is characterized in that: including bottom plate (1), vertical interval is provided with first mounting bracket (11) and second mounting bracket (12) on bottom plate (1), one side that first mounting bracket (11) is close to second mounting bracket (12) rotates and is provided with installation section of thick bamboo (2), the one end that installation section of thick bamboo (2) is close to second mounting bracket (12) is followed circumference and is dismantled and be connected with a plurality of erection blocks (3), a plurality of along installation section of thick bamboo (2) radial equal sliding connection have reference column (4) that are used for centre gripping cylindricality work piece bottom jointly on installation block (3), be equipped with on first mounting bracket (11) and be used for driving installation section of thick bamboo (2) pivoted first driving piece (5), be equipped with on installation block (3) and be used for driving a plurality of reference columns (4) synchronous second driving piece (6) that slide.
2. The clamping mechanism for fixing cylindrical workpieces for a CNC machine tool according to claim 1, wherein: the second mounting frame (12) is provided with a mounting plate (7) along the axial sliding of the mounting cylinder (2), a third driving piece (8) for driving the mounting plate (7) to move is arranged on the second mounting frame (12), a rotary table (71) is rotatably arranged on the mounting plate (7), and a clamping piece (9) for clamping the top of the cylindrical workpiece is arranged on the rotary table (71).
3. The clamping mechanism for fixing cylindrical workpieces for a CNC machine tool according to claim 2, wherein: the clamping piece (9) comprises a pneumatic clamping jaw, a cylinder body of the pneumatic clamping jaw is arranged on the rotary table (71), and two clamping jaws of the pneumatic clamping jaw slide in opposite directions along the radial direction of the rotary table (71).
4. A clamping mechanism for a CNC machine to secure cylindrical workpieces as claimed in claim 3, wherein: the base plate (1) is provided with a bracket (10) for placing cylindrical workpieces in a vertical sliding manner between the first mounting frame (11) and the second mounting frame (12), and the base plate (1) is provided with a fourth driving piece (20) for driving the bracket (10) to lift.
5. The clamping mechanism for fixing cylindrical workpieces for CNC machine tool as claimed in claim 4, wherein: the first driving piece (5) comprises a first driving motor which is arranged on the first mounting frame (11), and an output shaft of the first motor is fixedly connected with the mounting cylinder (2) in a coaxial way;
The second driving piece (6) comprises a fluted disc (61), the fluted disc (61) is coaxially and rotatably arranged at one end, close to the second installation frame (12), of the installation barrel (2), a gear (62) used for being meshed with the fluted disc (61) is arranged on the installation block (3), the positioning column (4) comprises a square section and a thread section, a first thread hole with the size matched with that of the thread section is formed in one side, close to the axis of the installation barrel (2), of the installation block (3), the square section coaxially and slidably penetrates through the axis position of the gear (62), the thread section is in threaded connection with the first thread hole and penetrates out of the installation block (3), and a second driving motor used for driving the fluted disc (61) to rotate is arranged in the installation barrel (2);
the third driving piece (8) comprises a first electric push rod, the first electric push rod is arranged on the second mounting frame (12), and the mounting plate (7) is arranged at the movable end of the first electric push rod;
The fourth driving piece (20) comprises a second electric push rod, the second electric push rod is arranged on the bottom plate (1) and located between the first mounting frame (11) and the second mounting frame (12), and the bracket (10) is arranged at the movable end of the second electric push rod.
6. The clamping mechanism for fixing a cylindrical workpiece for a CNC machine according to any one of claims 1 to 5, wherein: be equipped with on the installation section of thick bamboo (2) and be used for connecting piece (30) of installation piece (3), connecting piece (30) include positioning bolt, a plurality of sizes and the second screw hole of positioning bolt adaptation have been seted up along self circumference to the one end that installation section of thick bamboo (2) is close to second mounting bracket (12), set up the through-hole that is used for supplying positioning bolt to pass on installation piece (3), positioning bolt passes behind the through-hole with corresponding second screw hole threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420753797.1U CN222036842U (en) | 2024-04-12 | 2024-04-12 | A clamping mechanism for fixing cylindrical workpieces in CNC machine tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420753797.1U CN222036842U (en) | 2024-04-12 | 2024-04-12 | A clamping mechanism for fixing cylindrical workpieces in CNC machine tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222036842U true CN222036842U (en) | 2024-11-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420753797.1U Active CN222036842U (en) | 2024-04-12 | 2024-04-12 | A clamping mechanism for fixing cylindrical workpieces in CNC machine tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222036842U (en) |
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2024
- 2024-04-12 CN CN202420753797.1U patent/CN222036842U/en active Active
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Address after: No. 1199 Tiantaisi Road, North Area of Modern Industrial Port, Pidu District, Chengdu City, Sichuan Province 610000 Patentee after: Chengdu Shuxinyang Machinery Co.,Ltd. Country or region after: China Address before: No. 615, 6th Floor, Unit 1, Building 1, No. 77, Tianmu Road, Hi-tech Zone, Chengdu, Sichuan, 610000 Patentee before: Chengdu Shuxinyang Machinery Co.,Ltd. Country or region before: China |