CN221538976U - Workpiece fixing device for machine tool - Google Patents
Workpiece fixing device for machine tool Download PDFInfo
- Publication number
- CN221538976U CN221538976U CN202420045059.1U CN202420045059U CN221538976U CN 221538976 U CN221538976 U CN 221538976U CN 202420045059 U CN202420045059 U CN 202420045059U CN 221538976 U CN221538976 U CN 221538976U
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- Prior art keywords
- worm
- machine tool
- fixing device
- pair
- holding rod
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- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 210000000078 claw Anatomy 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 claims 2
- 238000001125 extrusion Methods 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 4
- 208000014674 injury Diseases 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to the technical field of machine tools, in particular to a workpiece fixing device for a machine tool, which comprises an operation table, wherein the top of the operation table is provided with a pair of clamping arms through rotation, the rear ends of the clamping arms are connected through a resetting device, the front ends of the clamping arms are fixedly provided with fixing claws near the end surfaces of the clamping arms, the device can rotate an elliptic cam through a transverse shaft, a worm and a worm wheel through rotating a turntable, the one-way transmission through the worm and the worm wheel is more labor-saving, the worm wheel can not rotate when the worm stops rotating, so that the clamping arms can not rotate due to extrusion of the clamping arms after the elliptical cams stop, the clamping of the clamping arms is more stable, and the worm wheel is driven by the holding rod to rotate the rotary table, the pinion and the worm to have the effect of amplifying the reduction of the driving force, so that the force is more saved, the holding rod and the sleeve can automatically retract when the holding rod is not used, and the probability of injury caused by the fact that personnel touch the holding rod is reduced.
Description
Technical Field
The utility model relates to the technical field of machine tools, in particular to a workpiece fixing device for a machine tool.
Background
The workpiece fixing device for a machine tool is an auxiliary device for fixing a workpiece placed on the machine tool during the use of the machine tool, and is widely used in the fields of mechanical equipment and industrial manufacturing. The existing workpiece fixing device for the machine tool can only fix one model of workpiece in the use process, so that the working efficiency is low, and the requirement of manufacturing high-end equipment is not met. The work piece fixing device for the machine tool has the beneficial effects that the work piece fixing device for the machine tool comprises an operation table fixedly arranged on the machine tool, a support frame fixedly connected with the operation table and a fixing mechanism … …, and workpieces with different specifications can be clamped and fixed. But the device rotates the cam through the pivot and drives the arm grip and carry out the centre gripping, lacks the locking to the pivot, after loosening the carousel or rotate excessively the back, the cam is rotated by the arm grip extrusion easily, the centre gripping is unstable inadequately, and make arm grip one end open through carousel rotation cam, after the stationary dog contacts the work piece, rotate and continue to prop up arm grip one end and carry out further excessive extrusion in order to reach the more firm centre gripping to the work piece for the cam, the torsion that the staff needs to apply is not enough little for personnel, use inadequately easily.
Disclosure of utility model
The utility model aims to solve the defects of insufficient stable clamping and insufficient easy use in the prior art, and provides a workpiece fixing device for a machine tool.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a work piece fixing device for lathe, includes the operation panel, the top of operation panel is equipped with a pair of centre gripping arm through rotating, and the rear end of a pair of centre gripping arm is connected through resetting means, a pair of the front end of centre gripping arm is close to terminal surface each other and has all set firmly the stationary dog, the rear end top of operation panel has set firmly the support frame, the roof of support frame with rotate between the operation panel and be equipped with the pivot, and the outer wall of pivot has set firmly through roll connection device roll connection a pair of oval cam and the worm wheel of centre gripping arm rear end, the roof bottom of support frame is rotated through the riser and is equipped with cross axle, worm that connect through accelerating transmission, and worm meshing worm wheel, the carousel has been set firmly to the right-hand member of cross axle, the jack has been seted up to the side of carousel, and has the holding rod through retracting device grafting in the jack.
Preferably, the rolling connection device comprises a roller plate, a roller shaft and rollers, wherein the end faces, close to each other, of the rear ends of the clamping arms are fixedly provided with the roller shafts through the pair of roller plates, the outer walls of the roller shafts are rotatably provided with the rollers through bearings, and the outer walls of the rollers are in rolling connection with the elliptical cams.
Preferably, the resetting device comprises a mounting block and a resetting tension spring, the rear ends of the two clamping arms are fixedly provided with the mounting blocks, and the end faces of the pair of mounting blocks, which are close to each other, are fixedly connected with two ends of the same resetting tension spring.
Preferably, the accelerating transmission device comprises a pinion and a gear wheel, the gear wheel and the pinion are respectively fixed on the outer wall of the cross shaft and the worm, and the gear wheel is meshed with the gear wheel.
Preferably, the retraction device comprises a stop block, a spring and a baffle, wherein the baffle and the rotary table are respectively fixedly arranged at the left end and the right end of the holding rod, the spring is sleeved on the outer wall of the holding rod, and the left end and the right end of the spring are respectively abutted against the baffle and the rotary table.
Preferably, the outer wall of the holding rod is provided with a ring groove, the ring groove is internally rotated to be provided with a sleeve, and the left end of the sleeve is provided with an outer chamfer which is convenient for being inserted into the turntable.
Preferably, chamfers which are convenient for finger insertion are arranged at the upper end and the lower end of the left end face of the stop block.
Preferably, an anti-slip protection pad for preventing the workpiece from sliding up and down is adhered in the groove of the fixed claw.
The workpiece fixing device for the machine tool has the beneficial effects that: the device can rotate oval cam through cross axle, worm wheel through rotating the carousel, not only more laborsaving through the unidirectional drive of worm, worm wheel and worm wheel can not rotate when the worm stops rotating to lead to can not rotate because the extrusion of clamping arm after oval cam stops, the centre gripping of clamping arm is more stable, and rotate carousel, the gear wheel drive pinion, the worm drives the worm wheel through the holding rod and all have the effect of amplifying the drive power and reducing, more laborsaving, holding rod, sleeve can automatic retraction when not using, reduce personnel and touch the probability that the holding rod leads to the injury.
Drawings
Fig. 1 is a schematic structural view of a workpiece fixing device for a machine tool according to the present utility model;
FIG. 2 is an enlarged view of area A of a workpiece fixture for a machine tool according to the present utility model;
FIG. 3 is an enlarged view of region B of a workpiece fixture for a machine tool according to the present utility model;
FIG. 4 is a schematic view of the bottom structure of a workpiece fixture for a machine tool according to the present utility model;
fig. 5 is an enlarged view of region C of a workpiece fixing device for a machine tool according to the present utility model.
In the figure: 1. an operation table; 2. a fixed claw; 3. a clamping arm; 4. a mounting block; 5. a support frame; 6. a worm wheel; 7. a rotating shaft; 8. a turntable; 9. resetting the tension spring; 10. a roller plate; 11. a roller shaft; 12. an elliptical cam; 13. an anti-slip protection pad; 14. a roller; 15. a grip; 16. a sleeve; 17. a stop block; 18. a horizontal axis; 19. a worm; 20. a pinion gear; 21. a large gear; 22. a spring; 23. a baffle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1 to 5, a workpiece fixing device for a machine tool comprises an operation table 1, wherein a pair of clamping arms 3 are arranged at the top of the operation table 1 through rotation, the rear ends of the pair of clamping arms 3 are connected through a reset device, fixing claws 2 are fixedly arranged on the end faces, close to each other, of the front ends of the pair of clamping arms 3, a supporting frame 5 is fixedly arranged at the top of the rear end of the operation table 1, a rotating shaft 7 is arranged between a top plate of the supporting frame 5 and the operation table 1 through rotation, an elliptical cam 12 and a worm gear 6 are fixedly arranged on the outer wall of the rotating shaft 7 and are in rolling connection with the rear ends of the pair of clamping arms 3 through a rolling connection device, a transverse shaft 18 and a worm 19 which are connected through an accelerating transmission device are arranged at the bottom of the top plate of the supporting frame 5 through rotation, the worm 19 is meshed with the worm gear 6, a rotary table 8 is fixedly arranged at the right end of the transverse shaft 18, a jack is formed in the side face of the rotary table 8, and a holding rod 15 is inserted into the jack through the retracting device.
The rolling connection device comprises a roller plate 10, a roller shaft 11 and rollers 14, wherein the end faces, close to each other, of the rear ends of the clamping arms 3 are fixedly provided with the roller shaft 11 through the pair of roller plates 10, the outer wall of the roller shaft 11 is rotatably provided with the rollers 14 through bearings, and the outer wall of the rollers 14 is in rolling connection with the elliptical cams 12.
The resetting device comprises mounting blocks 4 and resetting tension springs 9, the rear ends of the two clamping arms 3 are fixedly provided with the mounting blocks 4, and the end faces, close to each other, of the pair of mounting blocks 4 are fixedly connected with two ends of the same resetting tension spring 9.
The accelerating transmission device comprises a pinion 20 and a large gear 21, the large gear 21 and the pinion 20 are respectively fixedly arranged on the outer walls of the transverse shaft 18 and the worm 19, and the pinion 20 is meshed with the large gear 21.
The retracting device comprises a stop block 17, a spring 22 and a baffle plate 23, the left end and the right end of the holding rod 15 are respectively fixedly provided with the baffle plates 23 and 17, the outer wall of the holding rod 15 is sleeved with the spring 22, and the left end and the right end of the spring 22 are respectively abutted against the baffle plate 23 and the rotary table 8.
The outer wall of the holding rod 15 is provided with a ring groove, the ring groove is rotationally provided with a sleeve 16, and the left end of the sleeve 16 is provided with an outer chamfer which is convenient for being inserted into the rotary table 8.
The upper and lower ends of the left end face of the stop block 17 are provided with chamfers which are convenient for fingers to insert.
An anti-slip protection pad 13 for preventing the workpiece from sliding up and down is adhered in the groove of the fixed claw 2.
Working principle: the finger is inserted into a gap formed between the chamfer on the stop block 17 and the turntable 8, the holding rod 15 is pulled out to the right, the sleeve 16 is held, the turntable 8 is rotated through the sleeve 16 to drive the transverse shaft 18 to rotate more easily and in a labor-saving manner, the worm 19 is accelerated to rotate through the pinion 20 and the gear wheel 21, the rotating shaft 7 and the elliptical cam 12 are rotated through the worm wheel 6, the two rollers 14 are synchronously moved outwards along with rotation of the rotating elliptical cam 12, the rear end of the clamping arm 3 is opened, the front end of the clamping arm is close to and drives the fixed claw 2 to clamp and fix workpieces, when the workpieces of different types are fixed, the rotating angles of the rotating shaft 7 are different, the rotating amplitude of the elliptical cam 12 is different, and the distance between the two rollers 14 is different; after clamping, the holding rod 15 is loosened, the spring 22 pushes the baffle piece 23 to drive the holding rod 15 and the sleeve 16 to move left to retract the rotary table 8, the holding rod 15 and the sleeve 16 are prevented from protruding, and the probability of injury caused by the fact that personnel touch the holding rod 15 is reduced.
The device can rotate oval cam 12 through rotating carousel 8 through cross axle 18, worm 19, worm wheel 6, through worm 19, worm wheel 6's unidirectional drive not only more laborsaving and worm wheel 6 can not rotate when worm 19 stops rotating, thereby lead to can not rotate because the extrusion of clamp arm 3 after oval cam 12 stops, the centre gripping of clamp arm 3 is more stable, and rotate carousel 8 through holding rod 15, gear wheel 21 drives pinion 20, worm 19 drives worm wheel 6 and all have the effect that the amplified driving force reduces, more laborsaving, holding rod 15, sleeve 16 can automatic retraction when not using, reduce the probability that the personnel touch holding rod 15 and lead to the injury.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. The utility model provides a work piece fixing device for lathe, includes operation panel (1), its characterized in that, the top of operation panel (1) is equipped with a pair of centre gripping arm (3) through rotating, and the rear end of a pair of centre gripping arm (3) is connected through resetting means, a pair of fixed jaw (2) have all been set firmly to the terminal surface that the front end of centre gripping arm (3) is close to each other, support frame (5) have been set firmly at the rear end top of operation panel (1), the roof of support frame (5) with rotate between operation panel (1) and be equipped with pivot (7), and the outer wall of pivot (7) has set firmly through roll connection device roll connection a pair of oval cam (12) and worm wheel (6) of centre gripping arm (3) rear end, the roof bottom of support frame (5) is equipped with through riser rotation cross axle (18) that acceleration transmission is connected, worm (19), and worm (19) meshing (6), the right-hand member of cross axle (18) has set firmly carousel (8), jack has been seted up to the side of carousel (8), and has grip (15) through roll-in the jack device.
2. The workpiece fixing device for a machine tool according to claim 1, wherein the rolling connection device comprises a roller plate (10), a roller shaft (11) and rollers (14), wherein the end faces, close to each other, of the rear ends of the pair of clamping arms (3) are fixedly provided with the roller shaft (11) through the pair of roller plates (10), the outer wall of the roller shaft (11) is rotatably provided with the rollers (14) through bearings, and the outer wall of the rollers (14) is in rolling connection with the elliptical cam (12).
3. The workpiece fixing device for the machine tool according to claim 1, wherein the resetting device comprises a mounting block (4) and a resetting tension spring (9), the rear ends of the two clamping arms (3) are fixedly provided with the mounting block (4), and the end faces, close to each other, of the pair of mounting blocks (4) are fixedly connected with two ends of the same resetting tension spring (9).
4. The workpiece fixing device for a machine tool according to claim 1, wherein the acceleration transmission device comprises a pinion (20) and a large gear (21), the large gear (21) and the pinion (20) are respectively fixed on the outer walls of the cross shaft (18) and the worm (19), and the pinion (20) is meshed with the large gear (21).
5. The workpiece fixing device for the machine tool according to claim 1, wherein the retracting device comprises a stop block (17), a spring (22) and a baffle (23), the baffle (23) and the baffle (17) are respectively and fixedly arranged at the left end and the right end of the holding rod (15), the spring (22) is sleeved on the outer wall of the holding rod (15), and the left end and the right end of the spring (22) are respectively abutted against the baffle (23) and the rotary table (8).
6. The workpiece fixing device for the machine tool according to claim 1, wherein an annular groove is formed in the outer wall of the holding rod (15), a sleeve (16) is rotationally arranged in the annular groove, and an outer chamfer which is convenient for inserting the rotary disc (8) is formed in the left end of the sleeve (16).
7. The workpiece fixing device for a machine tool according to claim 5, wherein chamfers for facilitating finger insertion are formed at both upper and lower ends of the left end face of the stopper (17).
8. The workpiece fixing device for the machine tool according to claim 1, wherein an anti-slip protection pad (13) for preventing the workpiece from sliding up and down is adhered in the groove of the fixing claw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420045059.1U CN221538976U (en) | 2024-01-09 | 2024-01-09 | Workpiece fixing device for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420045059.1U CN221538976U (en) | 2024-01-09 | 2024-01-09 | Workpiece fixing device for machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221538976U true CN221538976U (en) | 2024-08-16 |
Family
ID=92223182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420045059.1U Active CN221538976U (en) | 2024-01-09 | 2024-01-09 | Workpiece fixing device for machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221538976U (en) |
-
2024
- 2024-01-09 CN CN202420045059.1U patent/CN221538976U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |