CN209903138U

CN209903138U - Bench with rotating device

Info

Publication number: CN209903138U
Application number: CN201920559330.2U
Authority: CN
Inventors: 姜磊
Original assignee: Zhejiang Industry Polytechnic College
Current assignee: Zhejiang Industry Polytechnic College
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-01-07
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses a bench with a rotating device, which comprises a bench and bench clamps arranged on the bench, wherein the lower end of the bench is provided with an installation box, a rotating device for rotating the bench clamps and a locking device for locking the rotating device are arranged in the installation box, the rotating device comprises a worm wheel fixedly connected with the bottom end of the bench clamps and a worm rotationally connected with the worm wheel, and one end of the worm extends out of the installation box and is connected with a handle; locking device locates the lock sleeve on the worm including the movable sleeve, and the lock sleeve is located the outside of install bin, the lock sleeve is connected in fixed cover pressing the cover including fixed cover with sliding, fixed cover with press and be connected in an organic whole through first spring coupling between the cover, fixed cover accessible threaded connection is fixed in on the worm, press and sheathe in and be equipped with locking portion, set up the locking groove that corresponds with locking portion on the install bin, rotary device has, according to operator's demand, can press from both sides the rotation to the most comfortable operating angle with the pincers worker.

Description

Bench with rotating device

Technical Field

The utility model relates to a pincers worker's technical field, in particular to pincers worker platform with rotary device.

Background

The bench worker platform is a platform for assembling, checking and marking by bench workers, and the bench worker platform is widely applied to machining procedures because of the unique auxiliary characteristic, but the bench worker platform still has the following defects in practical use: the whole unable rotation after the installation of pincers worker clamp, this has just restricted pincers worker and has pressed from both sides the maneuverability to the work piece, when pincers worker operator need carry out the pincers worker to a plurality of surfaces of work piece and handle, the operator adjusts one of them face of work piece to the comfortable position of operator when beginning, can adjust the operating position on the one hand to the processing operator of the rest face of work piece, but can lead to the operator to need constantly to adjust the operating position and some position again be difficult to the follow-up operation processing to the work piece, on the other hand, can carry out the clamping again to the work piece, but the position of clamping at every turn is inconsistent, there is certain influence to the precision of work piece processing, consequently, need to solve this problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bench with rotary device has rotary device, according to operator's demand, can press from both sides the bench worker and rotate to the optional position, and the operator of being convenient for carries out bench worker to a plurality of faces of work piece and handles.

The above technical purpose of the present invention can be achieved by the following technical solutions: a bench with a rotating device comprises a bench and a bench clamp arranged on the bench, wherein an installation box is arranged at the lower end of the bench, a rotating device for rotating the bench clamp and a locking device for locking the rotating device are arranged in the installation box, the rotating device comprises a worm wheel and a worm rotatably connected with the worm wheel, a stepped hole is formed in the bench, one end of the worm wheel is arranged in the stepped hole through a connecting plate, the connecting plate is fixedly connected to the bottom of the bench clamp, the other end of the worm wheel is arranged at the bottom end of the installation box through a bearing, one end of the worm is arranged on the inner end wall of the installation box, and the other end of the worm extends out of the installation box and is connected with a handle; the locking device comprises a locking sleeve movably sleeved on the worm, the locking sleeve is positioned outside the installation box, the locking sleeve comprises a fixed sleeve and a pressing sleeve, the fixed sleeve comprises a fixed disk and a guide ring which is arranged on the fixed disk in a protruding way, the end part of the pressing sleeve is provided with a guide groove matched with the guide ring, the guide groove penetrates through the two ends of the pressing sleeve, the fixed sleeve and the pressing sleeve are connected into a whole through a first spring, the fixed sleeve is fixedly connected with the worm through a fixing device, one end of the pressing sleeve opposite to the first spring is provided with a locking part, the side wall of the installation box is provided with a locking groove corresponding to the locking part, two elastic ribs are circumferentially arranged on the side wall of the guide ring, the longitudinal section of each elastic rib is in a trapezoid shape with a narrow outer part and a wide inner part, and the inner ring of the pressing sleeve is provided with a trapezoid groove matched with the elastic ribs.

Further, the one end that the install bin is close to the handle is demountable installation, the equal lateral spacing in both ends of install bin is equipped with fixed plate and limiting plate, demountable installation has the fly leaf on the limiting plate, the activity groove has been seted up to the both ends symmetry of fly leaf, the activity inslot is equipped with the swivel pin, the swivel pin can be followed the activity groove and slided, the one end that the handle was kept away from to the swivel pin is equipped with location portion, is equipped with the settling tank that supplies location portion to pass through and the constant head tank corresponding with location portion on the limiting plate, support between fixed plate and the limiting plate and be equipped with the second spring, just the one end of second spring links.

Furthermore, one end of the rotating pin close to the handle is provided with a flat part convenient for the rotating pin to rotate and a limiting part preventing the rotating pin from sliding out of the movable groove.

Furthermore, a guide post is fixedly connected to the fixing plate, and the second spring is sleeved on the guide post.

Further, be equipped with the collar on the fly leaf, the one end of worm is installed in the collar through the bearing, the other end of worm is installed in the install bin through the supporting seat.

Furthermore, four groups of bench work clamps are uniformly distributed on the bench work table in the circumferential direction, the lower end of each group of bench work clamps is correspondingly provided with an installation box, and the bench work table is further provided with baffles for dividing the bench work table into four parts.

Further, a plurality of mounting panels are evenly distributed in the circumferential direction of the upper end of the baffle plate, and a plurality of hooks are arranged on the front face and the rear face of each mounting panel.

Further, fixing device is including locating the internal thread in the guide ring, the one end that the worm is close to the handle is equipped with the portion of screwing on corresponding with the internal thread, the cross-section of locking groove with be the rectangle, locking portion adaptation in locking groove just supports the terminal surface of locating the locking groove under the spring action of first spring.

Furthermore, the fixing device comprises a hoop, the hoop comprises a fixed hoop fixedly connected to the fixed disc through a connecting block and a movable hoop hinged to the fixed hoop, two positioning clamping rings are correspondingly and convexly arranged at the inner ends of the fixed hoop and the movable hoop, a positioning clamping groove matched with the positioning clamping rings is formed in the peripheral wall of the worm, and an anti-slip pad is arranged at the inner end of the hoop; the mounting hole of installation worm is seted up to the lateral wall of install bin, the locking groove is a plurality of locking constant head tanks of circumference equipartition in the mounting hole outer end, press to sheathe circumference equipartition and be equipped with three locking teeth that can block into the locking constant head tank, locking constant head tank and mounting hole junction are equipped with the step that can butt locking tooth tip.

Furthermore, the vice clamp is provided with a clamping portion for clamping a workpiece, and the clamping portion is provided with a clamping groove for conveniently clamping the workpiece.

To sum up, the utility model discloses following beneficial effect has:

a bench worker platform with rotary device, equipartition has four groups of bench worker to press from both sides on the bench worker platform, and each bench worker presss from both sides each other independently, the space resource of the bench worker platform of effective utilization, there is rotary device used for rotating the bench worker to press from both sides in the said install bin, according to operator's demand, can rotate the bench worker to the required operating angle; a locking device is arranged in the mounting box so as to lock the adjusted position of the bench clamp; meanwhile, the movable plate is detachably arranged on the installation box, so that the worm is conveniently installed in the installation box;

the specific operation of adjusting the angle of the bench clamp is as follows: if the guide ring and the worm are connected with the internal thread into a whole through the threaded connection part, an operator abuts against the fixed sleeve by hand to press the pressing sleeve downwards in a direction close to the fixed disc, the elastic rib is in positioning fit with the trapezoidal groove to enable the locking part on the pressing sleeve to be separated from the locking groove, the handle is rotated to enable the handle to sequentially drive the worm, the worm wheel, the connecting plate and the bench worker clamp to rotate, further the bench worker clamp is adjusted to a required operation angle, the handle is stopped to rotate, the fixed disc on the worm is slightly rotated to enable the locking part to be aligned to the locking groove, the pressing sleeve is continuously pressed downwards in a direction close to the fixed disc to enable the first spring to accumulate force, the pressing sleeve is loosened, and the locking part extends into the locking groove under the action of the elastic force of the first; if fixed cover is fixed in the worm through the cuff, will press the cover and push down toward being close to the fixed disk direction, elasticity muscle and dovetail groove location fit to the locking tooth that the messenger pressed to sheathe in breaks away from in the locking constant head tank, and rotatory handle is adjusted the pincers worker and is pressed to required operating angle, and makes the locking tooth aim at the locking constant head tank, will press the cover and continue to push down toward being close to the fixed disk direction so that first spring holds up power, unclamps and presses the cover, makes the locking tooth stretch into in the locking constant head tank under first spring elastic force.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a perspective sectional view of the present invention;

FIG. 3 is a cross-sectional view of the bench of the present invention;

fig. 4 is an assembly schematic view of the mounting box of the present invention;

fig. 5 is an exploded view of the mounting box of the present invention;

fig. 6 is a cross-sectional view of the mounting box of the present invention;

FIG. 7 is an enlarged view of the point A of the present invention;

fig. 8 is an assembled sectional view of the movable plate and the rotary pin of the present invention;

fig. 9 is a schematic structural view of the locking sleeve of the present invention;

fig. 10 is a cross-sectional view of the locking sleeve of the present invention;

fig. 11 is a schematic structural view of the locking positioning groove and the locking teeth of the present invention;

fig. 12 is a first perspective, three-dimensional, cross-sectional view of the locking collar and ferrule of the present invention;

fig. 13 is a second perspective, cross-sectional view of the locking collar and cuff of the present invention;

fig. 14 is a schematic view of the ferrule of the present invention in a locked state;

fig. 15 is a schematic view of the cuff of the present invention when it is open;

fig. 16 is a schematic structural view of the mounting plate of the present invention;

fig. 17 is a schematic structural view of the bench clamp of the present invention.

In the figure: 1. a bench; 11. clamping by a fitter; 111. a clamping portion; 112. a clamping groove; 12. a stepped hole; 13. a connecting plate; 14. a baffle plate; 141. mounting a plate; 142. hooking; 2. installing a box; 21. a worm gear; 22. a worm; 221. a handle; 222. a screw connection part; 23. a locking sleeve; 231. fixing a sleeve; 2311. fixing the disc; 2312. a guide ring; 2313. an internal thread; 2314. an elastic rib; 2315. a sliding groove; 232. pressing the sleeve; 2321. a locking portion; 2322. a guide groove; 2323. a trapezoidal groove; 2324. sliding the column; 233. a first spring; 234. a locking groove; 24. a fixing plate; 241. a second spring; 242. a guide post; 25. a limiting plate; 251. a placing groove; 252. positioning a groove; 26. a movable plate; 261. a movable groove; 262. a rotation pin; 2621. a positioning part; 2622. a flat portion; 2623. a limiting part; 263. a mounting ring; 27. a supporting seat; 28. mounting holes; 29. a step; 3. a ferrule; 31. connecting blocks; 32. a fixed ferrule; 33. a movable hoop; 34. positioning the snap ring; 35. positioning the clamping groove; 36. locking the positioning groove; 37. a locking tooth; 38. an anti-slip pad.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1-17, a bench with a rotating device includes a bench 1 and a bench clamp 11 mounted on the bench 1, a mounting box 2 is disposed at a lower end of the bench 1, a rotating device for rotating the bench clamp 11 and a locking device for locking the rotating device are disposed in the mounting box 2, the rotating device includes a worm wheel 21 and a worm 22 rotatably connected to the worm wheel 21, a stepped hole 12 is disposed on the bench 1, one end of the worm wheel 21 is mounted in the stepped hole 12 through a connecting plate 13, the connecting plate 13 is fixedly connected to a bottom of the bench clamp 11, the other end of the worm wheel 21 is mounted at a bottom end of the mounting box 2 through a bearing, one end of the worm 22 is mounted at an inner end wall of the mounting box 2, and the other end of the worm 22 extends out of the mounting box 2 and is connected to a handle 221; the locking device comprises a locking sleeve 23 movably sleeved on the worm 22, the locking sleeve 23 is located outside the installation box 2, the locking sleeve 23 comprises a fixing sleeve 231 and a pressing sleeve 232, the fixing sleeve 231 comprises a fixing disc 2311 and a guide ring 2312, the fixing disc 2311 protrudes outwards, a guide groove 2322 matched with the guide ring 2312 is formed in the end portion of the pressing sleeve 232, the guide groove 2322 penetrates through two ends of the pressing sleeve 232, and the fixing sleeve 231 and the pressing sleeve 232 are connected into a whole through a first spring 233.

The fixing sleeve 231 is fixedly connected to the worm 22 through a fixing device, one end of the pressing sleeve 232 opposite to the first spring 233 is provided with a locking portion 2321, and the side wall of the installation box 2 is provided with a locking groove 234 corresponding to the locking portion 2321.

As shown in fig. 4-10, the fixing device includes an internal thread 2313 disposed in the guide ring 2312, one end of the worm 22 near the handle 221 is provided with a screw connection portion 222 corresponding to the internal thread 2313, the cross section of the locking portion 2321 is rectangular, and the cross section of the locking groove 234 is matched with the cross section of the locking portion 2321.

As shown in fig. 11 to 15, the fixing device includes a hoop 3, the hoop 3 includes a fixed hoop 32 fixedly connected to the fixed disk 2311 through a connecting block 31 and a movable hoop 33 hinged to the fixed hoop 32, the hoop 3 is conveniently hooped on the worm 22 by providing the movable hoop 33, an anti-slip pad 38 is provided at an inner end of the hoop 3, the anti-slip pad 38 is provided to prevent the hoop 3 and the worm 22 from slipping, two positioning snap rings 34 are correspondingly and convexly provided at inner ends of the fixed hoop 32 and the movable hoop 33, and a positioning snap groove 35 adapted to the positioning snap ring 34 is provided at a peripheral wall of the worm 22; the mounting hole 28 of installation worm 22 is seted up to the lateral wall of install bin 2, locking groove 234 is a plurality of locking constant head tank 36 of circumference equipartition in the mounting hole 28 outer end, the circumference equipartition is equipped with three locking teeth 37 that can block into locking constant head tank 36 on the cover 232 of pressing, locking constant head tank 36 is equipped with the step 29 that can butt locking tooth 37 tip with the mounting hole 28 junction.

As shown in fig. 13, two elastic ribs 2314 are circumferentially arranged on the side wall of the guide ring 2312, the longitudinal section of each elastic rib 2314 is a trapezoid with a narrow outside and a wide inside, a trapezoidal groove 2323 matched with the elastic rib 2314 is arranged on the inner ring of the pressing sleeve 232, and when the pressing sleeve 232 is pressed towards the fixed disk 2311, the elastic ribs 2314 are in positioning fit with the trapezoidal groove 2323, so that the locking part 2321 on the pressing sleeve 232 is separated from the locking groove 234, and the worm 22 can be rotated to adjust the angle of the vice clamp 11 on the worm wheel 21.

As shown in fig. 6-8, one end of the installation box 2 close to the handle 221 is detachably installed, two ends of the installation box 2 are transversely provided with a fixed plate 24 and a limiting plate 25 at an interval, the limiting plate 25 is detachably installed with a movable plate 26, two ends of the movable plate 26 are symmetrically provided with movable grooves 261, a rotating pin 262 is arranged in the movable groove 261, the rotating pin 262 can slide along the movable groove 261, the rotating pin 262 can rotate in the movable groove 261, one end of the rotating pin 262, which is far away from the handle 221, is provided with a positioning portion 2621, the limiting plate 25 is provided with a placement groove 251 through which the positioning portion 2621 passes and a positioning groove 252 corresponding to the positioning portion 2621, a second spring 241 is abutted between the fixed plate 24 and the limiting plate 25, and one end of the second spring 241 is welded to the fixed; the worm 22 is conveniently mounted in the mounting box 2 by removably mounting the movable plate 26 on the mounting box 2.

The movable plate 26 is provided with a mounting ring 263, one end of the worm 22 is mounted in the mounting ring 263 through a bearing, and the other end of the worm 22 is mounted in the mounting box 2 through a supporting seat 27.

The specific installation process of the movable plate 26: one end of the installation box 2 opposite to the movable plate 26 is abutted against any fixed part, one end of the worm 22 is installed on the side wall of the installation box 2 through the supporting seat 27, the other end of the worm 22 extends into the inner edge of the installation ring 263 of the movable plate 26 and extends to the outside of the installation ring 263, the rotating pin 262 on the movable plate 26 is rotated, the positioning part 2621 is aligned with the installation groove 251 and presses the rotating pin 262 inwards against the elastic force of the second spring 241, so that the positioning part 2621 is located between the limiting plate 25 and the fixed plate 24, the rotating pin 262 is rotated for a certain angle, so that the positioning part 2621 corresponds to the positioning groove 252, the rotating pin 262 is loosened, the positioning part 2621 is clamped in the positioning groove 252 under the elastic force of the second spring 241, and the movable plate 26 is installed on the; and the mounting box 2 is fixed at the lower end of the bench 1 through a fastener.

The flat part 2622 is arranged at one end of the rotating pin 262 close to the handle 221, so that the rotating pin 262 can rotate conveniently on one hand, and the rotating pin 262 can be pressed conveniently on the other hand; one end of the rotating pin 262 close to the flat part 2622 is also provided with a limiting part 2623 to prevent the rotating pin 262 from sliding out of the movable groove 261.

The fixed plate 24 is fixedly connected with a guide post 242, the second spring 241 is sleeved on the guide post 242, and the guide post 242 is arranged, so that the elastic force of the second spring 241 acts on the height direction of the guide post 242, and the utilization rate of the elastic force of the second spring 241 is increased.

As shown in fig. 1-2, four groups of bench work clamps 11 are uniformly distributed on the bench work table 1 in the circumferential direction, the lower end of each group of bench work clamps 11 is correspondingly provided with an installation box 2, the bench work table 1 is further provided with a baffle 14 for dividing the bench work table 1 into four parts, the bench work clamps 11 are uniformly distributed on the bench work table 1 in the circumferential direction, so that each bench work clamp 11 is independent of the other, the bench work operation performed by an operator in each group is not interfered with each other, the upper ends of the baffles 14 are uniformly distributed with a plurality of installation plates 141 in the circumferential direction, and the front and rear surfaces of the installation plates 141 are provided with a plurality of hooks 142 for hanging the operating tools of the bench work, thereby effectively utilizing the upper space of the bench work table 1 and being helpful for cleaning the.

As shown in fig. 14, the vise clamp 11 is provided with a clamping portion 111 for clamping a workpiece, the clamping portion 111 is provided with a clamping groove 112 for facilitating clamping of the workpiece, and the clamping portion 111 is provided with the clamping groove 112 for facilitating clamping of the workpiece having an arc or circular structure by the clamping portion 111.

As shown in fig. 12, the outer periphery of the guide ring 2312 is provided with a sliding groove 2315 in the axial direction, the sliding groove 2315 extends to the upper end of the guide ring 2312, the inner end of the pressing sleeve 232 is provided with a sliding column 2324 matched with the sliding groove 2315, and the pressing sleeve 232 is prevented from rotating relative to the fixing sleeve 231 when pressed or ejected under the elastic force of the first spring 233 by the sliding column 2324 sliding up and down in the sliding groove 2315.

The utility model discloses a basic operating principle does:

a bench work table with rotary device, equip with four groups of bench work clamp 11 on bench work table 1, and each bench work clamp 11 is independent each other, the space resource of the bench work table 1 of effective utilization, the said install bin 2 is equipped with the rotary device used for rotating the bench work clamp 11, according to operator's demand, can rotate the bench work clamp 11 to the necessary operating angle; a locking device is arranged in the installation box 2 so as to lock the adjusted position of the bench clamp 11; meanwhile, a movable plate 26 is detachably mounted on the mounting box 2, so that the worm 22 can be conveniently mounted in the mounting box 2;

the specific operation of adjusting the angle of the vise clamp 11 is as follows: if the guide ring 2312 and the worm 22 are connected with the internal thread 2313 through the threaded portion 222 as a whole, an operator abuts against the fixing sleeve 231 with a hand to press the pressing sleeve 232 to be close to the fixing disc 2311, the elastic rib 2314 is in positioning fit with the trapezoidal groove 2323 to enable the locking portion 2321 on the pressing sleeve 232 to be separated from the locking groove 234, the handle 221 is rotated to enable the handle 221 to sequentially drive the worm 22, the worm wheel 21, the connecting plate 13 and the bench worker clamp 11 to rotate, further the bench worker clamp 11 is adjusted to a required operation angle, the handle 221 is stopped from rotating, the fixing disc 2311 on the worm 22 is slightly rotated to enable the locking portion 2321 to be aligned with the locking groove 234, the pressing sleeve 232 is continuously pressed to be close to the fixing disc 2311 to enable the first spring 233 to accumulate force, the pressing sleeve 232 is released, and the locking portion 2321 extends into the locking groove 234 under the elastic force of the first spring 233.

If the fixing sleeve 231 is fixed to the worm 22 through the ferrule 3, the pressing sleeve 232 is pressed downward toward the fixing disk 2311, the elastic rib 2314 is in positioning fit with the trapezoidal groove 2323, so that the locking teeth 37 on the pressing sleeve 232 are disengaged from the locking positioning grooves 36, the handle 221 is rotated to adjust the bench worker's clamp 11 to a desired operating angle, the locking teeth 37 are aligned with the locking positioning grooves 36, the pressing sleeve 232 is continuously pressed downward toward the fixing disk 2311 to accumulate the force of the first spring 233, and the pressing sleeve 232 is released, so that the locking teeth 37 extend into the locking positioning grooves 36 under the elastic force of the first spring 233.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a bench with rotary device, includes bench (1) and installs bench clamp (11) on bench (1), its characterized in that: the lower end of the bench vice table (1) is provided with a mounting box (2), a rotating device for rotating the bench vice clamp (11) and a locking device for locking the rotating device are arranged in the mounting box (2), the rotating device comprises a worm wheel (21) and a worm (22) rotationally connected with the worm wheel (21), a stepped hole (12) is formed in the bench vice table (1), one end of the worm wheel (21) is mounted in the stepped hole (12) through a connecting plate (13), the connecting plate (13) is fixedly connected to the bottom of the bench vice clamp (11), the other end of the worm wheel (21) is mounted at the bottom end of the mounting box (2) through a bearing, one end of the worm (22) is mounted on the inner end wall of the mounting box (2), and the other end of the worm (22) extends out of the mounting box (2) and is connected with a handle (221); the locking device comprises a locking sleeve (23) movably sleeved on a worm (22), the locking sleeve (23) is located outside the installation box (2), the locking sleeve (23) comprises a fixing sleeve (231) and a pressing sleeve (232), the fixing sleeve (231) comprises a fixing disc (2311) and a guide ring (2312) arranged on the fixing disc (2311) in an outward protruding mode, a guide groove (2322) matched with the guide ring (2312) is formed in the end portion of the pressing sleeve (232), the guide groove (2322) penetrates through the two ends of the pressing sleeve (232), the fixing sleeve (231) and the pressing sleeve (232) are connected into a whole through a first spring (233), the fixing sleeve (231) is fixedly connected to the worm (22) through a fixing device, a locking portion (2321) is arranged at one end, opposite to the first spring (233), a locking groove (234) corresponding to the locking portion (2321) is formed in the side wall of the installation box (2), two elastic ribs (2314) are circumferentially arranged on the side wall of the guide ring (2312), the longitudinal section of each elastic rib (2314) is in a trapezoid shape with a narrow outer part and a wide inner part, and a trapezoid groove (2323) matched with the elastic ribs (2314) is formed in the inner ring of the pressing sleeve (232).

2. A bench clamp with a rotary device as claimed in claim 1, wherein: one end of the installation box (2) close to the handle (221) is detachably installed, both ends of the installation box (2) are transversely provided with a fixing plate (24) and a limiting plate (25) at intervals, the limiting plate (25) is detachably provided with a movable plate (26), two ends of the movable plate (26) are symmetrically provided with movable grooves (261), a rotating pin (262) is arranged in the movable groove (261), the rotating pin (262) can slide along the movable groove (261), a positioning part (2621) is arranged at one end of the rotating pin (262) far away from the handle (221), a mounting groove (251) for the positioning part (2621) to pass through and a positioning groove (252) corresponding to the positioning part (2621) are arranged on the limit plate (25), a second spring (241) is arranged between the fixing plate (24) and the limiting plate (25) in a propping mode, and one end of the second spring (241) is fixedly connected to the fixing plate (24).

3. A bench clamp with a rotary device as claimed in claim 2, wherein: one end of the rotating pin (262) close to the handle (221) is provided with a flat part (2622) which is convenient for the rotating pin (262) to rotate and a limiting part (2623) which prevents the rotating pin (262) from sliding out of the movable groove (261).

4. A bench clamp with a rotary device as claimed in claim 2, wherein: the fixed plate (24) is fixedly connected with a guide post (242), and the second spring (241) is sleeved on the guide post (242).

5. A bench clamp with a rotary device as claimed in claim 2, wherein: be equipped with collar (263) on fly leaf (26), the one end of worm (22) is installed in collar (263) through the bearing, the other end of worm (22) is installed in install bin (2) through supporting seat (27).

6. A bench clamp with a rotary device as claimed in claim 1, wherein: four groups of bench work clamps (11) are uniformly distributed on the bench work table (1) in the circumferential direction, the lower end of each group of bench work clamps (11) is correspondingly provided with an installation box (2), and baffles (14) for dividing the bench work table (1) into four parts are further arranged on the bench work table (1).

7. The bench of claim 6 wherein said rotary device comprises: the upper end circumference equipartition of baffle (14) is equipped with a plurality of mounting panels (141), the front and back of mounting panel (141) all is equipped with a plurality of couples (142).

8. A bench clamp with a rotary device as claimed in claim 1, wherein: the fixing device comprises an internal thread (2313) arranged in a guide ring (2312), one end, close to the handle (221), of the worm (22) is provided with a threaded portion (222) corresponding to the internal thread (2313), the cross section of the locking groove (234) is rectangular, and the locking portion (2321) is adapted to the locking groove (234) and abuts against the end face of the locking groove (234) under the elastic force action of the first spring (233).

9. A bench clamp with a rotary device as claimed in claim 1, wherein: the fixing device comprises a hoop (3), the hoop (3) comprises a fixed hoop (32) fixedly connected to a fixed disc (2311) through a connecting block (31) and a movable hoop (33) hinged to the fixed hoop (32), two positioning clamping rings (34) are correspondingly and convexly arranged at the inner ends of the fixed hoop (32) and the movable hoop (33), a positioning clamping groove (35) matched with the positioning clamping ring (34) is formed in the peripheral wall of the worm (22), and an anti-slip pad (38) is arranged at the inner end of the hoop (3); mounting hole (28) of installation worm (22) are seted up to the lateral wall of install bin (2), locking groove (234) are a plurality of locking constant head tank (36) of circumference equipartition in mounting hole (28) outer end, the circumference equipartition is equipped with three locking teeth (37) that can block into locking constant head tank (36) on pressing cover (232), locking constant head tank (36) are equipped with step (29) that can butt locking tooth (37) tip with mounting hole (28) junction.

10. A bench clamp with a rotary device as claimed in claim 1, wherein: the clamping portion (111) used for clamping the workpiece is arranged on the bench worker clamp (11), and a clamping groove (112) convenient for clamping the workpiece is formed in the clamping portion (111).