CN211489671U

CN211489671U - Clamp for lathe machining

Info

Publication number: CN211489671U
Application number: CN201922215174.0U
Authority: CN
Inventors: 焦宪松
Original assignee: Shandong Dajin Forging Co ltd
Current assignee: Shandong Dajin Forging Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-09-15
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses an anchor clamps for lathe processing relates to the technical field of lathe, and it includes that the rotation is connected the chuck on the lathe and is set up the clamping mechanism on the chuck, has seted up three spout, adjacent two along its radius on the chuck contained angle between the spout is 120, and clamping mechanism includes the slider and is used for driving the drive assembly that the slider slided, and the slider has threely and horizontal sliding connection respectively in threely in the spout, the coaxial fixedly connected with carousel of chuck is provided with the retaining member that is used for locking drive assembly on the carousel. Place the work piece on the chuck, then start drive assembly for three slider of drive assembly drive slides in opposite directions, makes the slider butt on the outer wall of decorative pattern circle, then starts the retaining member, makes the retaining member lock drive assembly, thereby makes the slider press from both sides the decorative pattern circle tightly. The utility model discloses have and be convenient for press from both sides tight effect with the decorative pattern circle.

Description

Clamp for lathe machining

Technical Field

The utility model belongs to the technical field of the technique of lathe and specifically relates to an anchor clamps for lathe processing are related to.

Background

Turning currently refers to lathe machining as part of machining. Lathe machining mainly uses a lathe tool to perform turning machining on a rotating workpiece. Lathes are used primarily for machining shafts, discs, sleeves and other workpieces having a surface of revolution, and are the most widely used type of machine tool in machine manufacturing and repair plants. The tyre mould is used for vulcanizing and forming various tyres, and is mostly a segmented mould which is composed of a pattern ring, a mould sleeve, an upper side plate and a lower side plate. The blank of the pattern ring is in a circular ring shape, and the shape of the blank is similar to that of the blank of the flange. When the pattern ring of the tire mold is processed, the outer diameter and the height of the pattern ring need to be processed in place, and then the inner cavity of the pattern ring is turned by a lathe.

The Chinese utility model patent with publication number CN209094555U and publication number 20190712 discloses a simple lathe for turning, which comprises a body, a standing leg, a movable frame, a gear disc, a fixer and a knife rest, wherein the bottom of the body is provided with the standing leg, the standing leg is welded with the body, the left side of the body is provided with the gear disc, the gear disc is rotatably connected with the fixer through a chain, the right side of the body is provided with a fixed seat, the fixed seat is detachably connected with the body through a nut, the fixed seat is provided with a tailstock, the left side of the tailstock is provided with a point position needle, the right side of the tailstock is provided with a round adjusting disc, the adjusting disc is rotatably connected with the tailstock, the middle part of the body is provided with the movable frame, the movable frame is provided with the knife rest, the right side of the knife rest is provided with a movable crank, the movable crank is rotatably connected with the movable frame, the fixer is provided with a movable, the movable block is arranged on the movable groove and is in sliding connection with the movable groove, a limiting block with an arc-shaped surface is arranged on the movable block, and the limiting block is welded with the movable block. The knife rest can move the crank to move the frame through shaking and carry out the removal of left and right directions, and the material to different positions is conveniently processed for processing is convenient more, can effectual control precision of processing.

The above prior art solutions have the following drawbacks: when the clamp is used for clamping the patterned ring, the movable block slides, so that the limiting block can slide after being subjected to external force, and the patterned ring can be clamped untightly when the motor drives the fixing device to rotate when the knife rest cuts the patterned ring.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a be convenient for with the tight anchor clamps that are used for lathe processing of decorative pattern circle clamp.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides an anchor clamps for lathe processing, includes to rotate the chuck of connecting on the lathe and set up the clamping mechanism on the chuck, three spout has been seted up along its radius on the chuck, adjacent two contained angle between the spout is 120, clamping mechanism includes the slider and is used for driving the drive assembly that the slider slided, the slider has three and horizontal sliding connection respectively in three in the spout, the coaxial fixedly connected with carousel of chuck, be provided with the retaining member that is used for locking drive assembly on the carousel.

Through adopting above-mentioned technical scheme, place the work piece on the chuck, then start drive assembly for three sliders of drive assembly drive slide in opposite directions, make the slider butt on the outer wall of decorative pattern circle, then start the retaining member, make the retaining member lock drive assembly, thereby make the slider press from both sides the decorative pattern circle tightly. Because carousel and chuck are coaxial fixed connection, so when the chuck drives the checkered ring and rotates, the carousel and the retaining member on it also can rotate in step to make the checkered ring at the during operation, the retaining member can lock drive assembly always, makes the slider press from both sides the checkered ring tightly indirectly.

Further: the drive assembly is including pressing from both sides tight sub-spare and being used for the drive to press from both sides the drive sub-spare that tight sub-spare slided, it includes three rack and three first gear, and is three the rack all slides in opposite directions along the radius direction of chuck and connects on the chuck, and is three the rack is respectively with three slider fixed connection, and is three first gear all rotates and connects on the chuck, and is three first gear respectively with three rack toothing, the retaining member is used for locking the drive sub-spare.

Through adopting above-mentioned technical scheme, when placing the work piece on the chuck, start the drive sub-spare, the drive sub-spare can drive three first gear synchronous rotation to make three first gear drive three rack synchronous motion respectively, thereby make three slider can synchronous phase to slip and butt in the outer wall of decorative pattern circle, then start the retaining member, thereby make the retaining member will drive the locking of sub-spare, thereby make the slider press from both sides the decorative pattern circle tightly.

Further: the drive son spare second gear, the second gear has three all to rotate and connects in the carousel, and is three equal coaxial fixed connection has the horizontally connecting rod on the second gear, and is three the one end that the second gear was kept away from to the connecting rod is respectively with three the coaxial fixed connection of first gear, the carousel internal rotation is connected with the ring gear, the ring gear all meshes with three second gear, the slide opening has been seted up to the outer wall of carousel, fixedly connected with handle on the ring gear, handle sliding connection is in the slide opening.

Through adopting above-mentioned technical scheme, when the pulling handle made it when annular sliding hole slided, the ring gear rotated the rotation that drives the second gear, and the rotation of second gear can drive the rotation of connecting rod to drive the rotation of first gear, thereby make the rack slide, thereby drive sliding of slider, thereby make the slider can press from both sides the work piece tight. The purpose of setting up the coaxial fixed connection of carousel and chuck is that when the chuck drove the work piece and rotates, the carousel also can follow the chuck and rotate to can not lead to the fact the influence to the clamp of work piece tightly.

Further: the retaining member includes annular dog, the coaxial fixed connection of dog is on the carousel, annular spacing groove has been seted up on the dog, the vertical nut of handle upper end fixedly connected with, nut internal thread connection has the horizontally bolt, the bolt can peg graft in the spacing inslot and with the diapire butt of spacing groove.

Through adopting above-mentioned technical scheme, when the slider butt was circled in the decorative pattern, need fix a position the handle for the slider can be tight the work piece clamp completely, so need rotate the bolt, makes the bolt peg graft in spacing inslot, thereby realizes the location of handle.

Further: and the side wall of the limiting groove is provided with anti-skid lines which are integrally formed with the limiting groove.

Through adopting above-mentioned technical scheme, the purpose that sets up anti-skidding line is, increases the frictional force between bolt and the spacing groove to make the location of handle more firm.

Further: the chuck is fixedly connected with three slide rails along the radius of the chuck, the three rack is fixedly connected with auxiliary blocks, and the auxiliary blocks are connected with the slide rails in a sliding manner.

Through adopting above-mentioned technical scheme, the purpose that sets up the slide rail is that supplementary piece slides with the slide rail and is connected and can play the guide effect to the rack to reduce the frictional force when rack and chuck slide, make the rack can drive the faster slip of slider.

Further: the rotary table is characterized in that a vertical auxiliary rod is fixedly connected to the outer wall of the rotary table, a return spring is fixedly connected to the auxiliary rod, and one end, far away from the auxiliary rod, of the return spring is fixedly connected with the handle.

Through adopting above-mentioned technical scheme, the purpose that sets up reset spring is, when the pulling handle slided, the handle can drive reset spring's stretching, when needs take off the work piece from the chuck, unclamp the handle, the handle can drive the reversal of ring gear under reset spring's elasticity to make the second gear drive the reversal of first gear, thereby make the rack drive the slider and keep away from the work piece, thereby can take off the work piece.

Further: one surface of the sliding block, which is close to the workpiece, is arranged into an arc shape.

Through adopting above-mentioned technical scheme, set to the curved purpose, can increase the area of contact with the work piece to the work piece is laminated better, with the tighter of work piece holder.

To sum up, the utility model discloses a beneficial technological effect does:

1. the purpose of setting up retaining member and slider is, places the work piece on the chuck, then starts drive assembly for three sliders of drive assembly drive slide in opposite directions, makes the slider butt on the outer wall of decorative pattern circle, then starts the retaining member, makes the retaining member lock drive assembly, thereby makes the slider press from both sides the decorative pattern circle tightly. Because the turntable and the chuck are coaxially and fixedly connected, when the chuck drives the pattern ring to rotate, the turntable and the locking part on the turntable can synchronously rotate, so that the driving assembly can be always locked by the locking part when the pattern ring works, and the sliding block is indirectly enabled to clamp the pattern ring;

2. the purpose that sets up ring gear and second gear is, when the pulling handle made it slide in the sliding hole, the ring gear rotated the rotation that drives the second gear, and the rotation of second gear can drive the rotation of connecting rod to drive the rotation of first gear, thereby make the rack slide, thereby drive sliding of slider, thereby make the slider can press from both sides the work piece tight. The purpose of coaxial and fixed connection of the turntable and the chuck is that when the chuck drives a workpiece to rotate, the turntable can also rotate along with the chuck, so that the clamping of the workpiece cannot be influenced;

3. the purpose that sets up reset spring is, when the pulling handle slided, the handle can drive reset spring's stretching, when needs take off the work piece from the chuck, unclamp the handle, the handle can drive the reversal of ring gear under reset spring's elasticity to make the second gear drive the reversal of first gear, thereby make the rack drive the slider keep away from the work piece, thereby can take off the work piece.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is an exploded view of the display drive assembly with the turntable hidden;

fig. 3 is an exploded view showing the retaining member.

Reference numerals: 100. a chuck; 101. a chute; 200. a clamping mechanism; 210. a drive assembly; 220. a slider; 230. clamping the sub-assembly; 231. a rack; 232. a first gear; 233. a slide rail; 234. an auxiliary block; 240. a drive subassembly; 241. a second gear; 242. a turntable; 243. a connecting rod; 244. a ring gear; 245. a sliding hole; 246. a handle; 247. an auxiliary lever; 248. a return spring; 249. a stopper; 250. a limiting groove; 251. a nut; 252. a bolt; 253. anti-skid lines; 260. and a locking member.

Detailed Description

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

As shown in fig. 1, the present invention discloses a fixture for lathe machining, which includes a chuck 100 and a clamping mechanism 200. The chuck 100 is vertically and rotatably connected to a lathe, three sliding grooves 101 are formed in the chuck 100 along the radius of the chuck 100, the included angle between every two adjacent sliding grooves 101 is 120 degrees, and the chuck 100 is used for placing a workpiece. The clamping mechanism 200 is disposed on the chuck 100, the clamping mechanism 200 includes a driving assembly 210 and a sliding block 220, the sliding block 220 has three sliding grooves 101 horizontally connected in a sliding manner, and the driving assembly 210 is used for driving the sliding block 220 to slide.

The surfaces of the three sliding blocks 220 close to the workpiece are all arranged into arc shapes. The purpose is, can increase the area of contact of slider 220 and decorative pattern circle to make the outer wall laminating of slider 220 better and decorative pattern circle, reinforcing slider 220's tight effect of clamp.

As shown in fig. 2, the driving assembly 210 includes a clamping sub-member 230 and a driving sub-member 240, the clamping sub-member 230 includes three racks 231 and three first gears 232, and each of the three first gears 232 is rotatably connected to the chuck 100 and is respectively disposed at one side of the three sliding grooves 101. The three racks 231 are respectively connected to one side of the three sliding grooves 101 in a sliding manner and respectively slide oppositely along the radius of the chuck 100, the three racks 231 are respectively meshed with the three first gears 232, and the three racks 231 are respectively fixedly connected with the three sliding blocks 220 (see fig. 1). The driving sub-assembly 240 is disposed at one side of the chuck 100 and is used for driving the three first gears 232 to rotate synchronously. A rotating disc 242 (see fig. 1) is coaxially and fixedly connected to the chuck 100, and a locking member 260 (see fig. 3) for locking the driving sub-member 240 is provided on the rotating disc 242. When a workpiece is placed on the chuck 100, the driving sub-part 240 is started, the driving sub-part 240 drives the three first gears 232 to synchronously rotate, so that the three first gears 232 respectively drive the three racks 231 to synchronously move in the opposite direction, the three sliding blocks 220 synchronously slide in the opposite direction and abut against the outer wall of the patterned ring, and then the locking part 260 is started, so that the locking part 260 locks the driving sub-part 240, and the sliding blocks 220 clamp the patterned ring.

As shown in fig. 2, three slide rails 233 are fixedly connected to the chuck 100 along the radius thereof, auxiliary blocks 234 are fixedly connected to one sides of the three racks 231 near the center of the chuck 100, and the auxiliary blocks 234 are slidably connected to the slide rails 233. The purpose of the slide rail 233 is that the auxiliary block 234 and the slide rail 233 are slidably connected to each other, so that the rack 231 can be guided, and the friction between the rack 231 and the chuck 100 during sliding can be reduced, so that the rack 231 can drive the slider 220 to slide more quickly. The auxiliary block 234 is disposed at an end of the rack 231 close to the center of the chuck 100 to ensure a maximum stroke of the rack 231, so that the slider 220 cannot be separated from the chuck 100 when the rack 231 drives the slider 220 to slide.

The driving sub-assembly 240 includes a second gear 241, and three of the second gears 241 are rotatably connected to the rotating plate 242. Horizontal connecting rods 243 are coaxially and fixedly connected to the three second gears 241, and one ends of the three connecting rods 243, which are far away from the second gears 241, are coaxially and fixedly connected with the three first gears 232 respectively. A ring gear 244 is rotatably connected in the rotary plate 242, and the ring gears 244 are each meshed with three second gears 241. A semi-annular sliding hole 245 (see fig. 3) is formed in the outer wall of the rotating disc 242, a handle 246 (see fig. 3) is fixedly connected to the gear ring 244, and the handle 246 extends out of the sliding hole 245 and is connected with the sliding hole 245 in a sliding manner. When the handle 246 is pulled to slide in the sliding hole 245, the gear ring 244 rotates to drive the second gear 241 to rotate, the second gear 241 rotates to drive the connecting rod 243 to rotate, the connecting rod 243 rotates to drive the first gear 232 to rotate, so that the three racks 231 slide in opposite directions, the three sliding blocks 220 are driven to slide in opposite directions, and the sliding blocks 220 abut against the patterned ring.

As shown in fig. 1, a vertical auxiliary rod 247 is fixedly connected to an outer wall of the rotary plate 242, a return spring 248 is fixedly connected to the auxiliary rod 247, and an end of the return spring 248, which is far away from the auxiliary rod 247, is fixedly connected to the handle 246. The purpose of the return spring 248 is that when the pull handle 246 is slid, the handle 246 will drive the extension of the return spring 248, when the workpiece needs to be removed from the chuck 100, the handle 246 is released, the handle 246 will drive the reverse rotation of the gear ring 244 under the elastic force of the return spring 248, so that the second gear 241 drives the reverse rotation of the first gear 232, so that the rack 231 drives the sliding block 220 away from the workpiece, and the workpiece is convenient to be removed.

As shown in fig. 3, the locking member 260 includes an annular stop 249, the stop 249 is coaxially and fixedly connected to the rotating plate 242, and an annular limiting groove 250 is formed on a side of the stop 249 adjacent to the rotating plate 242. A vertical nut 251 is fixedly connected to the handle 246, a horizontal bolt 252 is screwed into the nut 251, and the bolt 252 is inserted into the limit groove 250 and abuts against the bottom wall of the limit groove 250. After the slider 220 and the decorative pattern ring butt, need fix a position handle 246, avoid slider 220 to keep away from the work piece and slide, so need rotate bolt 252 for bolt 252 pegs graft in spacing groove 250 with the diapire butt of spacing groove 250, thereby realize the location of handle 246.

The side wall of the limit groove 250 is provided with an anti-slip pattern 253 integrally formed with the limit groove 250. The anti-slip pattern 253 is provided to increase the friction between the bolt 252 and the stopper groove 250, so that the handle 246 can be more firmly positioned.

The specific working process of this embodiment: the workpiece is placed on the chuck 100, and then the handle 246 is pulled, so that the handle 246 drives the gear ring 244 to rotate, the gear ring 244 drives the three second gears 241 to synchronously rotate, the three second gears 241 drive the three first gears 232 to synchronously rotate through the connecting rods 243, the three first gears 232 drive the three racks 231 to oppositely slide, the three racks 231 respectively drive the three sliders 220 to synchronously and oppositely slide, and the sliders 220 are abutted to the patterned ring. Then the bolt 252 is rotated, so that the bolt 252 is inserted into the limiting groove 250 and abutted against the bottom wall of the limiting groove 250, the positioning of the handle 246 is realized, the reverse rotation of the gear ring 244 is avoided, the sliding block 220 is far away from the workpiece to slide, and the sliding block 220 is convenient for clamping the patterned ring.

Claims

1. A anchor clamps for lathe processing which characterized in that: connect chuck (100) on the lathe and set up clamping mechanism (200) on chuck (100) including rotating, three spout (101) have been seted up along its radius on chuck (100), adjacent two contained angle between spout (101) is 120, clamping mechanism (200) include slider (220) and be used for driving drive assembly (210) that slider (220) slided, slider (220) have three and horizontal sliding connection respectively in three in spout (101), chuck (100) coaxial fixedly connected with carousel (242), be provided with retaining member (260) that are used for locking drive assembly (210) on carousel (242).

2. The jig for lathe machining according to claim 1, characterized in that: drive assembly (210) are including pressing from both sides tight sub-spare (230) and being used for the drive to press from both sides the drive sub-spare (240) that tight sub-spare (230) slided of tight sub-spare (230) of drive, it includes three rack (231) and three first gear (232) to press from both sides tight sub-spare (230) threely rack (231) all slide in opposite directions along the radius direction of chuck (100) and connect on chuck (100), three rack (231) respectively with three slider (220) fixed connection, three first gear (232) are all rotated and are connected on chuck (100), three first gear (232) mesh with three rack (231) respectively, retaining member (260) are used for locking drive sub-spare (240).

3. A jig for lathe machining according to claim 2, characterized in that: the drive sub-part (240) comprises a second gear (241), the second gear (241) is provided with three equal rotation ends and is connected in a rotating disc (242), the second gear (241) is provided with a horizontal connecting rod (243), the connecting rod (243) is far away from one end of the second gear (241) and is respectively connected with the first gear (232) in a coaxial and fixed mode, a gear ring (244) is rotationally connected in the rotating disc (242), the gear ring (244) is meshed with the three second gears (241), a sliding hole (245) is formed in the outer wall of the rotating disc (242), a handle (246) is fixedly connected to the gear ring (244), and the handle (246) is slidably connected in the sliding hole (245).

4. A jig for lathe machining according to claim 3, characterized in that: retaining member (260) include annular dog (249), dog (249) coaxial fixed connection is on carousel (242), annular spacing groove (250) have been seted up on dog (249), handle (246) upper end fixedly connected with vertical nut (251), nut (251) internal thread connection has horizontally bolt (252), bolt (252) can peg graft in spacing groove (250) and with the diapire butt of spacing groove (250).

5. The jig for lathe machining according to claim 4, characterized in that: the side wall of the limiting groove (250) is provided with anti-skid threads (253) which are integrally formed with the limiting groove (250).

6. A jig for lathe machining according to claim 2, characterized in that: chuck (100) are along three slide rail (233) of its radius fixedly connected with, and is three equal fixedly connected with auxiliary block (234) on rack (231), auxiliary block (234) and slide rail (233) slide and are connected.

7. A jig for lathe machining according to claim 3, characterized in that: the outer wall of the rotary table (242) is fixedly connected with a vertical auxiliary rod (247), the auxiliary rod (247) is fixedly connected with a return spring (248), and one end, far away from the auxiliary rod (247), of the return spring (248) is fixedly connected with a handle (246).

8. The jig for lathe machining according to claim 1, characterized in that: one surface of the sliding block (220) close to the workpiece is arranged into an arc shape.