CN210306884U

CN210306884U - Clamping and positioning device for special-shaped workpiece

Info

Publication number: CN210306884U
Application number: CN201921178561.5U
Authority: CN
Inventors: 陈磊; 刘敏
Original assignee: Nanjing Huaxuda Precision Machinery Co Ltd
Current assignee: Nanjing Huaxuda Precision Machinery Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-14
Anticipated expiration: 2029-07-24

Abstract

The utility model relates to a dysmorphism work piece presss from both sides tight positioner uses in anchor clamps design technical field, and its technical scheme main points are: the device comprises a workbench, two upper end positioning columns and a lower end positioning column, wherein the two upper end positioning columns and the lower end positioning column are both connected with the workbench, the two upper end positioning columns and the one lower end positioning column are both cylinders arranged perpendicular to the workbench, the positions of the two positioning columns and the one lower end positioning column are respectively matched with corresponding circular grooves on a processed special-shaped workpiece, when the device clamps and positions the clamped workpiece, the two upper end positioning columns and the one lower end positioning column are distributed on the upper side and the lower side of the clamped workpiece, the circumferential side walls of the two upper end positioning columns and the lower end positioning column are respectively provided with a ring platform, the upper surfaces of the three ring platforms are mutually parallel and level, and one side of the clamped workpiece is provided with a vertical quick; the advantages are that: the device structure is designed according to the profile of the special-shaped workpiece needing to be clamped and positioned, and clamping and positioning of the special-shaped workpiece are achieved.

Description

Clamping and positioning device for special-shaped workpiece

Technical Field

The utility model belongs to the technical field of the anchor clamps design technique and specifically relates to a dysmorphism work piece presss from both sides tight positioner is related to.

Background

The machine is also called a fixture, which is used to fix the object to be processed to make it occupy the correct position for receiving construction or detection. In a broad sense, any process in a process for quickly, conveniently and safely installing a clamped workpiece may be referred to as a jig. Such as welding jigs, inspection jigs, assembly jigs, machine tool jigs, and the like. Among them, the machine tool clamp is the most common, and is often referred to as a clamp for short. When a clamped workpiece is machined on a machine tool, the clamped workpiece must be positioned and clamped before machining or detection in order to enable the surface of the clamped workpiece to meet the technical requirements of dimensions, geometric shapes, mutual position accuracy with other surfaces and the like specified in a drawing.

The detection after being convenient for process is pressed from both sides tight location to a dysmorphism work piece now, and two circular slots have been seted up to this dysmorphism work piece upside, and a circular slot has been seted up to the downside, and two circular slots of upside are located the both sides side of downside circular slot and upwards, and the circular slot extends and runs through the two surfaces that the tight work piece is relative of clamp, and the tight work piece surface of clamp that the notch department all is equipped with the platform parallel with the workstation, and the whole surface has a plurality of anomalous protruding structures, is difficult to press from both sides tight location to this dysmorphism work piece with current general fixture.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dysmorphism work piece presss from both sides tight positioner, its advantage: the device structure is designed according to the profile of the special-shaped workpiece needing to be clamped and positioned, and clamping and positioning of the special-shaped workpiece are achieved.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a dysmorphism work piece presss from both sides tight positioner, includes workstation, two upper end reference columns and a lower extreme reference column, two the upper end reference column and a lower extreme reference column all are connected with the workstation, two the position of reference column and a lower extreme reference column respectively with process the special-shaped work piece on corresponding circular slot looks adaptation, two when the device presss from both sides tight location to the tight work piece of clamp upper end reference column and a lower extreme reference column distribute in the upper and lower both sides of the tight work piece of clamp, two all be equipped with the loop platform, it is three on upper end reference column and the lower extreme reference column circumference lateral wall the mutual parallel and level of upper surface of loop platform, one side that lies in the tight work piece of clamp on the workstation is equipped.

Through adopting above-mentioned technical scheme, the staff with at first place the tight work piece of clamp on positioner, make two upper end reference columns and a lower extreme reference column suit with three circular slot positions on the tight work piece of clamp respectively, conflict with the ring platform upper surface through the platform of the tight work piece circular slot department of clamp, the circular slot inside wall supports tightly with the reference column respectively this moment, fix a position the tight work piece of clamp according to the planar principle of three point determination on not the same straight line, then stimulate the handle of perpendicular quick clamp by the staff, the chuck that makes perpendicular quick clamp compresses tightly the surface that the tight work piece is parallel with the workstation, thereby press from both sides tight work piece tightly, realized the location and the tight function of clamp to the tight dysmorphism work piece of clamp.

The utility model discloses further set up to: the two upper end positioning columns are fixedly arranged on the workbench, the lower ends of the lower end positioning columns are provided with sliding blocks, sliding chutes matched with the sliding blocks are arranged on the workbench, the extending directions of the sliding chutes are perpendicular to a connecting line between centers of circles of the top surfaces of the two upper end positioning columns, springs are arranged between the sliding blocks and the groove walls of the sliding chutes in the direction close to the clamped workpiece, and when the lower end positioning columns abut against the clamped workpiece tightly, the springs are in a stretching state.

By adopting the technical scheme, the lower end positioning columns are connected with the workbench in a sliding mode and are abutted to the clamped workpiece direction through the springs, so that the clamped workpiece is abutted to the two upper end positioning columns, the possibility of gaps between the clamped workpiece and the three positioning columns is reduced, and the positioning precision is improved.

The utility model discloses further set up to: the slider is provided with a connecting column, and the connecting column extends along the extending direction of the sliding groove and penetrates out of the workbench from the direction away from the clamped workpiece.

By adopting the technical scheme, when a worker clamps a clamped workpiece, the worker can firstly pull the lower end positioning column by pulling the connecting column, so that the lower end connecting column moves towards the outer side direction of the workbench and an installation space is reserved, then the two circular grooves at the upper end of the clamped workpiece are respectively aligned to the two upper end positioning columns, the clamped workpiece is placed on the circular table, and finally the connecting column is loosened to enable the lower end to be fixed and abut against the inner side wall of the circular groove at the lower end of the clamped workpiece. The lower end of the positioning column is fixed by the lower end of the lower end positioning column, so that the position of the positioning column can be adjusted without directly pulling the lower end of the lower end positioning column, and the possibility that the hand of a worker is extruded to cause danger due to the fact that the gap between the clamped workpiece and the lower end positioning column is reduced due to the movement of the lower end positioning column is reduced.

The utility model discloses further set up to: the top of workstation is equipped with the profile frame, profile frame inside wall profile and the adaptation of the work piece circumference profile of cramping, be equipped with a plurality of dead levers on the lateral wall under the profile frame, it is a plurality of the dead lever is connected with the workstation.

By adopting the technical scheme, when a worker clamps a clamped workpiece on the device, the surface structure of the clamped workpiece is complex, and the worker with less work experience cannot easily distinguish the placing direction and the placing position of the clamped workpiece when clamping the clamped workpiece by observing the position of the positioning column, so that the profile frame matched with the profile of the clamped workpiece when correctly placing the clamped workpiece is arranged, the worker with less work experience can clearly distinguish the mode of placing the clamped workpiece, the clamped workpiece is firstly aligned to the profile frame, and the clamped workpiece is slowly placed on the device after being held by hands below the profile frame, and convenience is created for the worker.

The utility model discloses further set up to: the fixed rods are connected with the outline frame in a rotating mode, the end, far away from the outline frame, of each fixed rod is connected with a connecting sleeve in a rotating mode, a threaded hole matched with the connecting sleeves is formed in the workbench, and when the connecting sleeves are abutted to the bottoms of the threaded holes, the upper surface of the outline frame is parallel to the workbench.

Through adopting above-mentioned technical scheme, make profile frame and workstation can dismantle and be connected to thereby conflict through the hole bottom of a plurality of adapter sleeves and screw hole and make a plurality of dead levers upper end parallel and level each other, thereby make profile frame and workstation level, dismantle profile frame when the less staff of experience is familiar with this operation after, reduce operating procedure and promote work efficiency.

The utility model discloses further set up to: the clamping device is characterized in that a groove is formed in the workbench, an air cylinder is arranged in the groove, a piston rod of the air cylinder is connected with a bearing plate, and the side face, far away from the air cylinder, of the bearing plate is attached to the surface contour of the corresponding position of a clamped workpiece.

Through adopting above-mentioned technical scheme, when the tight work piece of staff clamping, at first make the piston rod of cylinder stretch out, make loading board and outline frame lower extreme parallel and level, then put into the outline frame with the tight work piece of clamp and place on the loading board, make the piston rod of the cylinder withdraw after extracting the connecting rod, because the stopping of ring platform this moment, the platform of the tight work piece circular slot department that presss from both sides offsets with the ring platform, loosen the connecting rod at last and can accomplish the clamp tight work piece of clamp tightly, practiced thrift the manpower and promoted the practicality of device.

The utility model discloses further set up to: and the upper surface of the bearing plate is provided with an anti-slip pad.

By adopting the technical scheme, the friction force between the clamped workpiece and the bearing plate is increased, the possibility that the position of the clamped workpiece is displaced relative to the bearing plate in the retraction process of the piston rod is reduced, and the reliability of the device is improved.

The utility model discloses further set up to: and magnet pieces are arranged on the ring platforms at the two upper end positioning columns.

Through adopting above-mentioned technical scheme, the magnetic attraction through the magnet piece attracts the tight work piece that presss from both sides, when making the tight work piece of staff clamping, the platform of the tight work piece circular slot both ends notch department keeps laminating with the magnet piece on the ring platform to the tight work piece that presss from both sides before having reduced to press from both sides to accomplish drops and causes the inconvenient condition of staff's operation, has promoted clamping efficiency.

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

1. positioning and clamping of the special-shaped workpiece are realized by arranging a positioning column and a ring platform which are respectively matched with the three circular grooves on the clamped workpiece;

2. through setting up the profile frame, make the staff easily the correct placing mode of half section complicated special-shaped workpiece and device clamping to reduce the error, promoted clamping efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic structural diagram of the slide block and the slide groove according to the embodiment.

Fig. 3 is a schematic structural diagram of the outline frame according to the embodiment.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

FIG. 5 is a schematic structural diagram of the present embodiment for showing the carrier plate.

Fig. 6 is an enlarged schematic view of the structure at B in fig. 5.

Fig. 7 is a schematic structural diagram of a special-shaped workpiece required to be clamped in the prior art.

In the figure, 1, a workbench; 11. a ring platform; 12. a chute; 13. a threaded hole; 14. a groove; 15. a magnet piece; 2. an upper end positioning column; 3. a lower end positioning column; 31. a slider; 311. a spring; 312. connecting columns; 4. vertically and quickly clamping; 5. a contour frame; 51. fixing the rod; 52. connecting sleeves; 6. a cylinder; 7. a carrier plate; 71. a non-slip mat.

Detailed Description

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

Example (b): the utility model provides a dysmorphism work piece presss from both sides tight positioner, as shown in fig. 1, including workstation 1, two upper end reference columns 2 and a lower extreme reference column 3, two upper end reference columns 2 are the cylinder that perpendicular to workstation 1 set up, lower extreme reference column 3 sets up to the semicircle post for practicing thrift the space, two upper end reference columns 2 all are connected with workstation 1 with a lower extreme reference column 3, when the tight work piece dress clamp of clamp was on the device, two upper end reference columns 2 are located the one side that the operator was kept away from to the tight work piece of clamp, lower extreme reference column 3 is located the one side that the tight work piece of clamp is close to the operator, and two upper end reference columns 2 distribute in the direction of lower extreme reference column 3 both sides, two upper end reference columns 2 suit with three circular slot position on the tight work piece of clamp respectively. The two upper end positioning columns 2 and the lower end positioning column 3 are both provided with a ring platform 11, the upper surfaces of the three ring platforms 11 are positioned at the same height and are parallel to the surface of the workbench 1, the ring platforms 11 are arranged around the positioning columns, when a clamped workpiece is clamped on the device, the ring platforms 11 are abutted against platforms at the notches at the two ends of a circular groove on the clamped workpiece, and play a role in supporting the clamped workpiece;

as shown in fig. 1, according to the principle that three points which are not on the same straight line determine a plane, the clamped workpiece is positioned in a plane, and because the upper end positioning columns 2 are distributed in the directions of two sides of the lower end positioning columns 3, and the upper end positioning columns 2 and the lower end positioning columns 3 are distributed on two sides of the clamped workpiece, the translation and rotation of the clamped workpiece in the plane are limited, thereby realizing the positioning of the device. The vertical quick clamp 4 is fixedly connected to the workbench 1, the chuck of the vertical quick clamp 4 is in a round table shape, when a clamped workpiece is clamped on the device, the chuck of the vertical quick clamp 4 compresses the clamped workpiece to be parallel to the surface of the workbench 1, so that the motion of the clamped workpiece in the vertical direction is limited, the clamping and the positioning of the special-shaped workpiece are realized, and the detection of the special-shaped workpiece is facilitated.

As shown in fig. 1 and fig. 2, the lower end positioning pillar 3 is slidably connected to the working platform 1, the lower end fixing part is provided with a sliding block 31, the working platform 1 is provided with a sliding slot 12 matched with the sliding block 31, the width of the bottom end of the sliding block 31 is larger than the width of the top end, the lower end positioning pillar 3 slides along the direction perpendicular to the connecting line of the two upper end positioning pillars 2, a spring 311 is arranged on the slot wall of one end of the sliding slot 12 away from the clamped workpiece, one end of the spring 311 away from the slot wall is fixedly connected with the sliding block 31, when the lower end positioning pillar 3 abuts against the clamped workpiece, the spring 311 is in a stretching state, one end of the sliding block 31 away from the clamped workpiece is provided with a connecting column 312, the connecting column 312 extends along the direction of the sliding slot 12 and penetrates out of the working platform 1 from one end away from the clamped workpiece, so that the lower end positioning pillar 3 can be conveniently, thereby strengthening the positioning of the clamped workpiece and improving the reliability of the device.

As shown in fig. 3 and 4, the workbench 1 is provided with a plurality of threaded holes 13, the inner wall of the threaded hole 13 is connected with a plurality of connecting sleeves 52, the connecting sleeves 52 are connected with a plurality of fixing rods 51 in a rotating manner in a direction away from the hole bottom of the threaded hole 13, the fixing rods 51 are perpendicular to the workbench 1, one end away from the workbench 1 is connected with a contour frame 5 together, and when the inner contour of the contour frame 5 and a clamped workpiece are correctly placed on the device, the circumferential contour of the clamped workpiece is adapted. Because the surface structure of the special-shaped workpiece is complex, a worker is not easy to judge the correct placing mode of the clamped workpiece through the positions of the upper end positioning column 2 and the lower end positioning column 3, so that through the outline frame 5 which is arranged on the outline of the clamped workpiece and is suitable for the outline of the clamped workpiece, when the worker clamps the clamped workpiece to the device, the clamped workpiece and the outline frame 5 are observed, the correct clamping mode of the clamped workpiece is judged easily and visually, and the clamped workpiece is placed on the annular table 11 at the positions of the upper end positioning column 2 and the lower end positioning column 3 through the outline frame 5. The connecting sleeve 52 is connected with the thread of the workbench 1 to enable the outline frame 5 to be detachable, when the connecting sleeve 52 is in contact with the bottom of the threaded hole 13, the outline frame 5 and the workbench 1 are kept horizontal, the connecting sleeve 52 is convenient for workers to detach the outline frame 5 after skilled clamping, operation steps required by the installation are reduced, and errors are reduced, so that the clamping efficiency is improved.

As shown in fig. 5 and 6, a groove 14 is formed in the surface of the workbench 1, an air cylinder 6 is arranged in the groove 14, a piston rod of the air cylinder 6 is connected with a bearing plate 7, the surface of the bearing plate 7, which is far away from the workbench 1, is matched with the surface shape of a clamped workpiece at a corresponding position, an anti-slip pad 71 is arranged on the surface, which is contacted with the clamped workpiece, of the bearing plate 7, which is parallel to the lower surface of the outline frame 5 when the piston rod of the air cylinder 6 extends out, the height of the upper surface of the bearing plate 7 is lower than that of the ring platform 11 when the piston rod of the air cylinder 6 retracts, magnet pieces 15 are arranged on the three ring platforms 11, the magnet pieces 15 are parallel to the upper surface of the workbench 1, platforms at two ends of a circular groove of. The loading plate 7 replaces a worker to manually take the clamped workpiece passing through the outline frame 5, so that the labor is saved, and the practicability of the device is improved.

During the action, a worker firstly extends the piston rod of the air cylinder 6, puts the clamped workpiece into the outline frame 5 by referring to the shape of the outline frame 5 and puts the clamped workpiece on the bearing plate 7, then, a connecting column 312 is pulled to reserve enough space between the lower end positioning column 3 and the upper end positioning column 2, a piston rod of the air cylinder 6 is retracted, the clamped workpiece descends together with the bearing plate 7 and is connected with the ring platform 11, the ring platform 11 replaces the bearing plate 7 to support the clamped workpiece, at the moment, a worker loosens the connecting column 312, the spring 311 pushes the sliding block 31 to enable the lower end positioning column 3 to return to the original position and abut against the clamped workpiece, meanwhile, a clamped workpiece is tightly abutted to the upper end positioning column 2, and finally, a worker pulls a handle of the vertical quick clamp 4 to enable a chuck of the vertical quick clamp 4 to tightly press the clamped workpiece and the horizontal surface of the workbench 1, so that the clamped workpiece can be positioned and clamped.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a dysmorphism work piece presss from both sides tight positioner which characterized in that: including workstation (1), two upper end reference column (2) and a lower extreme reference column (3) all are connected with workstation (1), two the reference column respectively with on the special-shaped workpiece of processing corresponding circular slot looks adaptation with the position of a lower extreme reference column (3), two when the device presss from both sides tight work piece clamp location two upper end reference column (2) and a lower extreme reference column (3) distribute in the upper and lower both sides of the tight work piece that presss from both sides, two all be equipped with loop platform (11), three on upper end reference column (2) and lower extreme reference column (3) circumference lateral wall the upper surface parallel and level each other of loop platform (11), one side that lies in the tight work piece that presss from both sides on workstation (1) is equipped with perpendicular quick clamp (4).

2. The profiled workpiece clamping and positioning device of claim 1, wherein: two upper end reference column (2) set firmly on workstation (1), lower extreme reference column (3) lower extreme is equipped with slider (31), be equipped with spout (12) with slider (31) looks adaptation on workstation (1), the line between the top surface centre of a circle of spout (12) extending direction perpendicular to two upper end reference column (2), slider (31) and spout (12) are close to between the cell wall of the tight work piece direction of clamp and are equipped with spring (311), work as lower extreme reference column (3) and the tight work piece of clamp support when tight, spring (311) are in tensile state.

3. The profiled workpiece clamping and positioning device of claim 2, wherein: be equipped with spliced pole (312) on slider (31), workstation (1) is worn out from the direction of keeping away from the work piece of clamping to spliced pole (312) extend along spout (12) extending direction.

4. The profiled workpiece clamping and positioning device of claim 1, wherein: the top of workstation (1) is equipped with profile frame (5), profile frame (5) inside wall profile with the tight work piece circumference profile looks adaptation of clamp, be equipped with a plurality of dead levers (51) on profile frame (5) the lateral wall, it is a plurality of dead lever (51) are connected with workstation (1).

5. The profiled workpiece clamping and positioning device of claim 4, wherein: a plurality of dead lever (51) all rotates with profile frame (5) to be connected, and is a plurality of the one end that profile frame (5) were kept away from in dead lever (51) all rotates and is connected with adapter sleeve (52), set up screw hole (13) with adapter sleeve (52) looks adaptation on workstation (1), it is a plurality of when adapter sleeve (52) all contradicts with the hole bottom of screw hole (13), the upper surface and workstation (1) of profile frame (5) are parallel.

6. The profiled workpiece clamping and positioning device of claim 5, wherein: the clamping device is characterized in that a groove (14) is formed in the workbench (1), an air cylinder (6) is arranged in the groove (14), a piston rod of the air cylinder (6) is connected with a bearing plate (7), and the side face, far away from the air cylinder (6), of the bearing plate (7) is attached to the surface contour of the corresponding position of a clamped workpiece.

7. The profiled workpiece clamping and positioning device of claim 6, wherein: and the upper surface of the bearing plate (7) is provided with an anti-skid pad (71).

8. The profiled workpiece clamping and positioning device of claim 7, wherein: magnet pieces (15) are arranged on the ring tables (11) at the two upper end positioning columns (2).