CN110977551B

CN110977551B - Mechanical fixture capable of quickly positioning circular ring type workpiece

Info

Publication number: CN110977551B
Application number: CN201911273071.8A
Authority: CN
Inventors: 裘钧; 倪君辉; 王立标
Original assignee: Taizhou University
Current assignee: Wenling Gongliang Cutting Tool Technology Service Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2021-01-15
Anticipated expiration: 2039-12-12
Also published as: CN110977551A

Abstract

The invention discloses a mechanical fixture capable of quickly positioning a ring workpiece, which comprises a supporting plate and a vertical plate, wherein the vertical plate is fixedly arranged on the side of the surface of the supporting plate, a thread groove used for traction movement is formed in the surface of the middle part of the vertical plate, a screw rod is inserted and arranged in the thread groove, a locking nut is sleeved at the top end of the screw rod, a supporting connecting plate is fixedly connected to the end of the screw rod through an embedded bearing, a collecting plate is supported at one end of the supporting connecting plate, a plurality of positioning grooves are fixedly formed in the surface of the collecting plate, hydraulic telescopic cylinders are correspondingly and fixedly arranged on the surfaces of the positioning grooves, and the telescopic ends of the hydraulic telescopic cylinders are in driving connection with the mechanical fixture correspondingly arranged on the back surface of the collecting plate. The invention has the beneficial effects that: through the mechanical fixture, traction groove, trapezoidal clamp piece and the expanding spring that are equipped with, be convenient for adjust whole trapezoidal clamp piece's position, utilize hydraulic telescoping cylinder's traction effect to finely tune down.

Description

Mechanical fixture capable of quickly positioning circular ring type workpiece

Technical Field

The utility model relates to an anchor clamps, in particular to can be to mechanical fixture of ring class work piece quick location belongs to work piece processing location technical field.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

The fixture generally comprises a positioning element (for determining the correct position of a workpiece in the fixture), a clamping device, a tool setting guide element (for determining the relative position of the tool and the workpiece or guiding the direction of the tool), an indexing device (for enabling the workpiece to complete the processing of a plurality of stations in one-time installation, including a rotary indexing device and a linear movement indexing device), a connecting element, a fixture body (a fixture base), and the like.

The existing mechanical clamp has low accuracy in automatically clamping annular mechanical workpieces, and the clamping treatment in batches can not lead to more complexity in the daily processing and use process, and the quick positioning and grabbing can not be realized, so that the annular mechanical workpieces can only be manually picked up.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can be to mechanical fixture of ring class work piece quick location to current mechanical fixture who proposes in solving above-mentioned background art is low to the ring form mechanical workpiece self-holding degree of accuracy, and the tight processing of unable batch clamp leads to comparatively loaded down with trivial details in daily processing use, and unable quick location snatchs, can only the problem of artifical picking up.

In order to achieve the above object, the utility model provides a following technical scheme: a mechanical clamp capable of quickly positioning a ring workpiece comprises a supporting plate and a vertical plate, wherein the vertical plate is fixedly installed on the side of the surface of the supporting plate, a thread groove used for traction movement is formed in the surface of the middle of the vertical plate, a lead screw is inserted and arranged in the thread groove, a locking nut is sleeved at the top end of the lead screw, a supporting connecting plate is fixedly connected and arranged at the end of the lead screw through an embedded bearing, a collecting plate is supported and arranged at one end of the supporting connecting plate, a plurality of positioning grooves are fixedly formed in the surface of the collecting plate, hydraulic telescopic cylinders are correspondingly and fixedly installed on the surfaces of the positioning grooves, telescopic ends of the hydraulic telescopic cylinders are in driving connection with the mechanical clamp correspondingly installed on the back of the collecting plate, a plurality of positioning sliding grooves are formed in the bottom surface of the mechanical clamp in a fan-shaped mode, and ladder-shaped clamping blocks used for clamping are arranged in the positioning sliding connection in the positioning sliding, the one end of trapezoidal tight piece of clamp is connected and is equipped with expanding spring, the other end of trapezoidal tight piece of clamp is connected and is equipped with and pulls the steel wire, the one end that pulls the steel wire is connected with the output transmission of hydraulic telescoping cylinder, the middle part fixed mounting of lead screw is equipped with the gear that is used for the screw thread to raise the lead screw, the middle part of gear is connected with the step motor drive that the riser surface was equipped with, the slide rail has all been seted up to the surperficial both sides side of backup pad, two the inside of slide rail all corresponds the slip and is equipped with two gyro wheels, four the top of gyro wheel is supported the installation and is equipped with the article layer board, the bottom middle part fixed mounting of article layer board is equipped with the locating piece, the top surface of article layer board has all seted up a plurality.

As an optimal technical scheme of the utility model, the avris of backup pad is articulated to be equipped with the hinge, the one end of hinge is rotated and is connected and be equipped with the dodge gate, the top middle part fixed mounting of dodge gate is equipped with the lug, the middle part surface scarf joint of lug is equipped with the fixed sleeving, the inside sliding connection of fixed sleeving is equipped with the slide bar, the one end connection of slide bar is equipped with the brush, the one end and the backup pad surface of brush contact, the other end connection of slide bar is equipped with the handle.

As a preferred technical scheme of the utility model, the traction groove has still been seted up on the middle part surface of backup pad, the inside sliding connection of traction groove is equipped with the traction lever, the one end sliding connection of traction lever is equipped with the traction connecting block, the other end of traction lever passes the bottom middle part inner wall of riser and is connected with the flexible end of second pneumatic cylinder that the outside was equipped with.

As an optimized technical scheme of the utility model, the locked groove lock joint that the hasp and the backup pad surface that are equipped with were equipped with is passed through to the one end of dodge gate.

As an optimal technical scheme of the utility model, the both sides side fixed mounting of article layer board is equipped with the border baffle.

As a preferred technical scheme of the utility model, the back fixed mounting of riser is equipped with flush mounting plate of switch, flush mounting plate of switch's surface is equipped with step motor switch, hydraulic telescoping cylinder switch, second hydraulic cylinder switch and electromagnet switch respectively, step motor and step motor switch electric connection, hydraulic telescoping cylinder and hydraulic telescoping cylinder switch electric connection, second hydraulic cylinder and second hydraulic cylinder switch electric connection, electro-magnet and electromagnet switch electric connection, step motor switch, hydraulic telescoping cylinder switch, second hydraulic cylinder switch and electromagnet switch all with external power supply electric connection.

As an optimal technical scheme of the utility model, the equal fixed mounting of bottom both sides side of backup pad is equipped with and supports fixed supporting leg with ground, the diameter of ring discharge groove is greater than mechanical fixture's diameter.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a can be to mechanical fixture of ring class work piece quick location:

1) through the mechanical fixture who is equipped with, the traction groove, trapezoidal clamp piece and expanding spring, be convenient for adjust whole trapezoidal clamp piece's position, utilize hydraulic telescoping cylinder's traction effect to finely tune down, so that follow-up trapezoidal clamp piece that utilizes the device contacts with annular work piece inner wall, and realize self-holding's effect, utilize under the effect of traction spring, release elastic potential energy, make whole trapezoidal clamp piece reset around to mechanical fixture's cyclic annular again by the center, thereby contact and press from both sides tightly with the inner wall of cyclic annular work piece, avoid manual operation.

2) The whole screw rod is conveniently driven by the arranged stepping motor, the gear and the screw rod, power steering is realized by utilizing the meshing effect, the screw rod is lifted or lowered along the thread groove, the collecting plate arranged at the end is lifted, and the mechanical clamp is automatically lowered into the circular ring discharge groove by utilizing the support of the hydraulic telescopic cylinder, so that batch clamping is realized;

3) the position of the hairbrush at the end is convenient to adjust through the arranged hinge, the movable door, the fixed sleeve and the sliding rod, so that the circular ring workpieces placed on the object supporting plate are pushed into the circular ring discharge grooves in turn under the displacement state of the hairbrush, the circular ring workpieces are prevented from falling under the adsorption effect of the internal electromagnet, meanwhile, the sliding rail and the roller are combined to push the whole object supporting plate along the sliding rail, and the positioning block and the traction rod can be matched to realize automatic pushing of the whole device.

Drawings

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

FIG. 2 is a schematic view of the supporting plate of the present invention;

fig. 3 is a schematic top view of the present invention;

fig. 4 is a schematic side view of the present invention;

FIG. 5 is a schematic structural view of the mechanical clamp of the present invention;

fig. 6 is a schematic bottom structure view of the article support plate of the present invention.

In the figure: 1. a stepping motor; 2. a screw rod; 3. a vertical plate; 4. a hydraulic telescopic cylinder; 5. a collection plate; 6. a hinge; 7. an edge baffle; 8. a circular ring discharge groove; 9. supporting legs; 10. a slide rail; 11. locking; 12. a support plate; 13. a movable door; 14. a bump; 15. a slide bar; 16. a grip; 17. fixing the sleeve; 18. locking the nut; 19. a draw bar; 20. a traction groove; 21. a traction connecting block; 22. a mechanical clamp; 23. a brush; 24. positioning blocks; 25. a tension spring; 26. a trapezoidal clamping block; 27. a traction wire; 28. positioning the chute; 29. a roller; 30. an article pallet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the utility model provides a mechanical fixture capable of rapidly positioning a ring workpiece, comprising a support plate 12 and a vertical plate 3, wherein the vertical plate 3 is fixedly installed at the surface side of the support plate 12, a thread groove for traction movement is formed on the middle surface of the vertical plate 3, a screw rod 2 is inserted in the inner thread of the thread groove, a locking nut 18 is sleeved on the top end of the screw rod 2, a support connecting plate is fixedly connected to the end of the screw rod 2 through an embedded bearing, a collecting plate 5 is supported at one end of the support connecting plate, a plurality of positioning grooves are formed on the surface of the collecting plate 5, a hydraulic telescopic cylinder 4 is fixedly installed on the surface of each positioning groove, the telescopic ends of the plurality of hydraulic telescopic cylinders 4 are in driving connection with a mechanical fixture 22 installed on the back of the collecting plate 5 correspondingly, and a plurality of positioning chutes 28 are formed on the bottom surface of the mechanical fixture 22 in a fan shape, the inside equal sliding connection of a plurality of location spout 28 is equipped with and is used for pressing from both sides tight ladder clamping block 26, the one end connection of ladder clamping block 26 is equipped with expanding spring 25, the other end connection of ladder clamping block 26 is equipped with traction wire 27, traction wire 27's one end is connected with the output transmission of hydraulic telescoping cylinder 4, the middle part fixed mounting of lead screw 2 is equipped with and is used for the screw to raise the gear of lead screw 2, the middle part of gear is connected with the step motor 1 drive that riser 3 surface was equipped with, slide rail 10 has all been seted up to two avris in the surface of backup pad 12, the inside of two slide rail 10 all corresponds the slip and is equipped with two gyro wheels 29, the top of four gyro wheels 29 supports the installation and is equipped with article layer board 30, the bottom middle part fixed mounting of article layer board 30 is equipped with locating piece 24, a plurality of rings that are used for placing annular workpiece discharge groove 8 has all been seted up to the.

Preferably, the hinge 6 is hinged to the side of the support plate 12, the movable door 13 is rotatably connected to one end of the hinge 6, a protruding block 14 is fixedly mounted in the middle of the top end of the movable door 13, a fixing sleeve 17 is embedded in the middle surface of the protruding block 14, a sliding rod 15 is arranged in the fixing sleeve 17 in a sliding connection mode, a brush 23 is connected to one end of the sliding rod 15, one end of the brush 23 is in contact with the surface of the support plate 12, a handle 16 is connected to the other end of the sliding rod 15, the annular objects can be conveniently resisted through the arranged movable door 13, the whole brush 23 can be conveniently moved in a telescopic mode through the arranged fixing sleeve 17, the sliding rod 15 and the handle 16, and the dispersed annular objects can be uniformly placed into the circular ring discharge groove 8 under the traction effect of the brush 23.

Preferably, the middle surface of the supporting plate 12 is further provided with a traction groove 20, a traction rod 19 is slidably connected inside the traction groove 20, one end of the traction rod 19 is slidably connected with a traction connecting block 21, the other end of the traction rod 19 penetrates through the inner wall of the middle of the bottom end of the vertical plate 3 to be connected with the telescopic end of a second hydraulic cylinder arranged outside, and the article supporting plate 30 is driven to move conveniently through the traction connecting block.

Preferably, one end of the movable door 13 is fastened with a locking groove formed on the surface of the support plate 12 through a lock catch 11, so as to facilitate fastening and fixing of the movable door 13.

Preferably, edge baffles 7 are fixedly installed at both sides of the article supporting plate 30 to prevent the articles from falling.

Preferably, the back fixed mounting of riser 3 is equipped with flush mounting plate of switch, flush mounting plate of switch's surface is equipped with step motor switch respectively, hydraulic telescoping cylinder switch, second hydraulic cylinder switch and electromagnet switch, step motor 1 and step motor switch electric connection, hydraulic telescoping cylinder 4 and hydraulic telescoping cylinder switch electric connection, second hydraulic cylinder and second hydraulic cylinder switch electric connection, electromagnet and electromagnet switch electric connection, step motor switch, hydraulic telescoping cylinder switch, second hydraulic cylinder switch and electromagnet switch all with external power supply electric connection, be convenient for circular telegram control.

Preferably, supporting legs 9 fixed with the ground support are fixedly arranged on two sides of the bottom of the supporting plate 12, and the diameter of the circular ring discharge groove 8 is larger than that of the mechanical clamp 22, so that the mechanical clamp 22 can be conveniently placed in.

When in specific use, the utility model relates to a mechanical fixture capable of quickly positioning circular workpieces, a user only needs to untie the lock catch 11 of the movable door 13, then the user can place the object supporting plate 30 on the surface of the supporting plate 12 corresponding to the slide rail 10 arranged on both sides of the supporting plate 12 and then can easily place the object supporting plate on the surface of the supporting plate 12 through the corresponding roller 29, then the user can open the switch of the second hydraulic cylinder, the traction rod 19 is stretched along the inside of the traction groove 20 by utilizing the power-on stretching action of the second hydraulic cylinder, the traction connecting block 21 at the end head slides along the traction groove 20, the whole object supporting plate 30 can be dragged and moved along the slide rail 10 under the combined action, the clamping at the edge of the slide rail 10 is stopped in the moving process, then the user can place the circular object supporting plate 30 to be clamped at will, then, the user closes and locks the whole movable door 13 again, then, the user can open the electromagnet switch, then, the electrifying magnetic force of each electromagnet placed at the bottom of the circular ring discharge groove 8 is enhanced, then, the operator can hold the handle 16 and push the slide rod 15 linearly, the slide rod 15 moves linearly back and forth on the surface of the fixed sleeve 17, at the moment, the brush 23 arranged at the end of the slide rod 15 can move dispersed circular ring workpieces passively, in the process of passive movement, the workpieces falling to the corresponding circular ring discharge grooves 8 are fixed by electromagnetic attraction in combination with the attraction of the electromagnets, the clamping process is prevented from moving, then, the user can operate the stepping motor switch again, then, the stepping motor 1 is electrified to operate in the running process to drive the gear of the output end to rotate, when the gear rotates, the screw rod 2 rotates in the up-down mode along the inside of the tooth groove and penetrates through the locking nut 18 to enable the screw rod 2 to rotate in the up-down mode The movement is straighter, the scarfing bearing at the end can block the collecting plate 5 from rotating in the same direction, so as to raise or lower the collecting plate 5, when the collecting plate is lowered to the position above the circular ring discharge groove 8, the hydraulic telescopic cylinder switch can be opened, then the hydraulic telescopic cylinder 4 is powered on to start, the telescopic end is moved upwards, in the process of moving the telescopic end upwards, one end is raised to penetrate through the positioning groove, the other end can pull the connected pull steel wire 27, the trapezoidal clamping block 26 is moved along the direction of the positioning sliding groove 28, the telescopic spring 25 arranged at the other end of the trapezoidal clamping block 26 is passively stretched, the position of the whole trapezoidal clamping block 26 is drawn close to the center as far as possible so as to be matched with the circular center of the circular ring workpiece, then a user can continue to move the whole mechanical clamp 22 downwards, and the mechanical clamp stops after reaching the inside of the circular ring discharge groove 8, then, the user can operate the hydraulic telescopic cylinder 4 again to enable the hydraulic telescopic cylinder to be retracted after being electrified, the traction steel wire 27 returns to the original position under the telescopic action of the telescopic spring 25, the whole ladder-shaped clamping block 26 is enabled to be reset, the state at the moment is diffused to the edge of the inner ring inner wall of the whole circular workpiece from the central position, when the position is diffused to the position matched with the workpiece, automatic clamping processing is achieved by automatic stop, and the clamping process adopts the adsorption of the electromagnet, so that the offset of the whole workpiece can be reduced, the clamping accuracy is enhanced as much as possible, manual collection is avoided, after the circular workpiece is clamped and fixed, the user can open the stepping motor switch again, the stepping motor 1 is adjusted to lift the whole collecting plate 5, and then the whole collecting plate is integrally disassembled to be processed next step.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mechanical clamp capable of quickly positioning a ring-shaped workpiece comprises a supporting plate (12) and a vertical plate (3), wherein the vertical plate (3) is fixedly installed on the side of the surface of the supporting plate (12), and is characterized in that a thread groove used for traction movement is formed in the surface of the middle of the vertical plate (3), a screw rod (2) is arranged in the thread groove in an inserting manner, a locking nut (18) is sleeved at the top end of the screw rod (2), a supporting connecting plate is fixedly connected to the end of the screw rod (2) through an embedded bearing, a collecting plate (5) is supported at one end of the supporting connecting plate, a plurality of positioning grooves are formed in the surface of the collecting plate (5) in a fixed manner, hydraulic telescopic cylinders (4) are fixedly installed on the surfaces of the positioning grooves in a corresponding manner, the telescopic ends of the hydraulic telescopic cylinders (4) are in driving connection with mechanical clamps (22) installed on the back of the collecting plate (5) in a corresponding manner, wherein the bottom surface of the mechanical clamp (22) is fan-shaped and provided with a plurality of positioning chutes (28), the insides of the positioning chutes (28) are all slidably connected and provided with trapezoidal clamping blocks (26) for clamping, one ends of the trapezoidal clamping blocks (26) are connected and provided with telescopic springs (25), the other ends of the trapezoidal clamping blocks (26) are connected and provided with traction steel wires (27), one ends of the traction steel wires (27) are in transmission connection with the output end of a hydraulic telescopic cylinder (4), the middle part of each lead screw (2) is fixedly provided with a gear for raising the lead screw (2) through threads, the middle part of the gear is in driving connection with a stepping motor (1) arranged on the surface of a vertical plate (3), two side edges of the surface of a support plate (12) are both provided with slide rails (10), and the insides of the two slide rails (10) are both correspondingly slidably provided with two idler wheels (, the top ends of the four rollers (29) are supported and provided with object supporting plates (30), the middle parts of the bottom ends of the object supporting plates (30) are fixedly provided with positioning blocks (24), the top surfaces of the object supporting plates (30) are provided with a plurality of circular ring discharge grooves (8) used for placing annular workpieces, and electromagnets are fixedly arranged inside the circular ring discharge grooves (8).

2. The mechanical clamp capable of rapidly positioning the ring-like workpiece according to claim 1, wherein: the avris of backup pad (12) is articulated to be equipped with hinge (6), the one end of hinge (6) is rotated and is connected and is equipped with dodge gate (13), the top middle part fixed mounting of dodge gate (13) is equipped with lug (14), the middle part surface scarf joint of lug (14) is equipped with fixed sleeve (17), the inside sliding connection of fixed sleeve (17) is equipped with slide bar (15), the one end of slide bar (15) is connected and is equipped with brush (23), the one end and backup pad (12) surface contact of brush (23), the other end connection of slide bar (15) is equipped with handle (16).

3. The mechanical clamp capable of rapidly positioning the ring-like workpiece according to claim 1, wherein: the middle surface of the supporting plate (12) is further provided with a traction groove (20), a traction rod (19) is arranged in the traction groove (20) in a sliding connection mode, one end of the traction rod (19) is provided with a traction connecting block (21) in a sliding connection mode, and the other end of the traction rod (19) penetrates through the inner wall of the middle of the bottom end of the vertical plate (3) and is connected with the telescopic end of a second hydraulic cylinder arranged outside.

4. The mechanical clamp capable of rapidly positioning the ring-like workpiece according to claim 2, wherein: one end of the movable door (13) is buckled with a lock groove arranged on the surface of the support plate (12) through a lock catch (11).

5. The mechanical clamp capable of rapidly positioning the ring-like workpiece according to claim 1, wherein: edge baffles (7) are fixedly arranged on two side sides of the object supporting plate (30).

6. The mechanical clamp capable of rapidly positioning the ring-like workpiece according to claim 3, wherein: the back fixed mounting of riser (3) is equipped with flush mounting plate of switch, flush mounting plate of switch's surface is equipped with step motor switch, hydraulic telescoping cylinder switch, second hydraulic cylinder switch and electromagnet switch respectively, step motor (1) and step motor switch electric connection, hydraulic telescoping cylinder (4) and hydraulic telescoping cylinder switch electric connection, second hydraulic cylinder and second hydraulic cylinder switch electric connection, electro-magnet and electromagnet switch electric connection, step motor switch, hydraulic telescoping cylinder switch, second hydraulic cylinder switch and electromagnet switch all with external power supply electric connection.

7. The mechanical clamp capable of rapidly positioning the ring-like workpiece according to claim 1, wherein: the equal fixed mounting in bottom both sides side of backup pad (12) is equipped with and supports fixed supporting leg (9) with ground, the diameter that the ring discharged groove (8) is greater than the diameter of mechanical fixture (22).