CN210849312U

CN210849312U - Workpiece clamping device for lathe

Info

Publication number: CN210849312U
Application number: CN201921936093.3U
Authority: CN
Inventors: 曾祥吉
Original assignee: Qingdao Minghaoyuan Precision Machinery Co ltd
Current assignee: Qingdao Minghaoyuan Precision Machinery Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-06-26
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a workpiece clamping device for a lathe, which comprises a base plate, a cylinder, a first clamping plate, a second clamping plate, a third clamping plate and a fourth clamping plate, wherein one end of the upper surface of the base plate is fixedly connected with the cylinder, one end of a telescopic rod of the cylinder is fixedly connected with the first clamping plate, one side of the first clamping plate, which is far away from the cylinder, is provided with the second clamping plate, and two ends of the bottom surfaces of the first clamping plate and the second clamping plate are both fixedly connected with sliders, the utility model drives the first clamping plate to move towards one side of the second clamping plate through the expansion of the cylinder, the first clamping plate and the second clamping plate can be drawn close to each other under the transmission of a gear, thereby realizing the clamping of workpieces, in addition, because the shapes of different workpieces are different, the fourth clamping plate is pushed to expand outwards, a reset spring can cause the fourth clamping plate to clamp the workpieces, a sucking disc and a wear-resisting, meanwhile, the device is also suitable for workpieces with different sizes and shapes, and has wider application range.

Description

Workpiece clamping device for lathe

Technical Field

The utility model relates to a lathe technical field specifically is a work piece clamping device for lathe.

Background

A lathe is a machine tool for machining a workpiece, and turning of a rotating workpiece is mainly performed by a turning tool. The workpiece cannot shake or shift to a set position in the rotating process, so that the workpiece needs to be clamped.

However, the clamping force of the existing lathe clamping device is not very high, the clamping device is fixed in shape, only single workpieces with fixed shapes can be clamped, the workpieces are different in shape and size, and the irregular workpieces with edges and corners on some surfaces are difficult to fix on the same clamping device, so that certain limitation exists, and the application range is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a work piece clamping device for lathe to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a workpiece clamping device for a lathe comprises a base plate, a cylinder, a first clamping plate, a second clamping plate, a third clamping plate and a fourth clamping plate, wherein the cylinder is fixedly connected to one end of the upper surface of the base plate, the first clamping plate is fixedly connected to one end of a telescopic rod of the cylinder, the second clamping plate is arranged on one side, away from the cylinder, of the first clamping plate, sliding blocks are fixedly connected to two ends of the bottom surfaces of the first clamping plate and the second clamping plate respectively, a pair of sliding grooves are formed in the other end of the upper surface of the base plate, two sliding blocks on the bottom surfaces of the first clamping plate and the second clamping plate are connected in the corresponding sliding grooves in a sliding mode, a pair of first supports and a pair of second supports are fixedly connected to the upper surface of the base plate and located on two sides of the cylinder respectively, a first connecting rod and a second connecting rod penetrate through and are connected between the first supports and the second supports respectively on the same side, and a straight tooth plates are fixedly, two the surface of No. two connecting rods and be located and all fix the cover between No. two supports and be equipped with No. two straight-teeth boards, two equal meshing between No. two straight-teeth boards of a straight-teeth board and homonymy is connected with a gear, two the gear passes through shaft swing joint on the base plate, two the equal fixed connection of one end of a connecting rod is on the side of splint, two the one end of No. two connecting rods all runs through splint and terminal surface fixed connection on the side of No. two splint, No. three splint of the perpendicular to surface fixedly connected with of splint, No. two splint's upper surface articulates there is No. four splint, fixedly connected with reset spring between No. four splint's the lower surface and No. two splint's the upper surface.

Furthermore, a guide hole is formed in the joint of the first clamping plate and the second connecting rod.

Furthermore, the anti-skidding soft pads are fixedly connected to the opposite side faces of the first clamping plate and the second clamping plate.

Furthermore, a plurality of wear-resistant balls are arranged on the side face, opposite to the side face of the fourth clamping plate, of the third clamping plate.

Furthermore, the fourth clamping plate is fixedly connected with a rubber elastic sheet on the side surface corresponding to the third clamping plate.

Furthermore, the whole of the fourth clamping plate is in a J shape, and the fourth clamping plate is fixedly connected with a sucker in the middle of the rubber elastic sheet.

Compared with the prior art, the beneficial effects of the utility model are that: the workpiece clamping device for the lathe is reasonable in structural design, the first clamping plate is driven to move towards one side of the second clamping plate through the expansion and contraction of the air cylinder, the two first connecting rods are driven to expand and contract simultaneously, the motion direction of the two second straight-tooth plates is just opposite to that of the two first straight-tooth plates under the transmission of the gear, namely the second clamping plate is pulled to move towards one side of the first clamping plate through the two second connecting rods, the first clamping plate and the second clamping plate can be drawn close to each other, the clamping of a workpiece is realized, in addition, because the shapes of different workpieces are different, edges and corners can be rounded, the edges and corners can contact with rubber elastic pieces at the moment, the fourth clamping plate is pushed to expand outwards, the reset spring has stretchability, the fourth clamping plate can be also promoted to clamp the workpiece, the clamping force to the workpiece can be further increased under the effects of the suckers and the wear-resistant balls, the clamping degree of the, meanwhile, the device is also suitable for workpieces with different sizes and shapes, and has wider application range.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a perspective view of the first and third clamp plates of the present invention;

fig. 3 is a side view of the second and fourth splints of the present invention.

In the figure: 1. a substrate; 2. a cylinder; 3. a gear; 4. a first spur plate; 5. a second spur plate; 6. a first connecting rod; 7. a second connecting rod; 8. a first bracket; 9. a second bracket; 10. a first clamping plate; 11. a second splint; 12. a chute; 13. an anti-slip soft cushion; 14. a third splint; 15. wear-resistant balls; 16. a fourth splint; 17. a rubber elastic sheet; 18. a suction cup; 19. a slider; 20. a guide hole; 21. a return spring.

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. 1-3, the present invention provides a technical solution: a workpiece clamping device for a lathe comprises a base plate 1, a cylinder 2, a first clamping plate 10, a second clamping plate 11, a third clamping plate 14 and a fourth clamping plate 16, wherein the cylinder 2 is fixedly connected to one end of the upper surface of the base plate 1, the first clamping plate 10 is fixedly connected to one end of a telescopic rod of the cylinder 2, the second clamping plate 11 is arranged on one side, away from the cylinder 2, of the first clamping plate 10, sliding blocks 19 are fixedly connected to two ends of the bottom surfaces of the first clamping plate 10 and the second clamping plate 11, a pair of sliding grooves 12 are formed in the other end of the upper surface of the base plate 1, the two sliding blocks 19 on the bottom surfaces of the first clamping plate 10 and the second clamping plate 11 are respectively and slidably connected into the corresponding sliding grooves 12, a pair of first supports 8 and a pair of second supports 9 are fixedly connected to two sides of the cylinder 2 on the upper surface of the base plate 1, a first connecting rod 6 and a second connecting rod 7 are, the surface of the first connecting rod 6 and the position between the first brackets 8 are fixedly and respectively sleeved with a first straight-tooth plate 4, the surface of the second connecting rod 7 and the position between the second brackets 9 are fixedly and respectively provided with a second straight-tooth plate 5, the two first straight-tooth plates 4 and the second straight-tooth plate 5 at the same side are respectively connected with a gear 3 in a meshing manner, the two gears 3 are movably connected on the base plate 1 through wheel shafts, one end of each first connecting rod 6 is fixedly connected on the side surface of the first clamping plate 10, one end of each second connecting rod 7 penetrates through the first clamping plate 10 and is fixedly connected on the side surface of the second clamping plate 11, the upper surface of the first clamping plate 10 is vertically and fixedly connected with a third clamping plate 14, the upper surface of the second clamping plate 11 is hinged with a fourth clamping plate 16, a reset spring 21 is fixedly connected between the lower surface of the fourth clamping plate 16 and the upper surface of the second clamping plate 11, the first clamping plate 10 is driven to move towards one side of the second clamping, drive two connecting rods 6 simultaneously and stretch out and draw back, under gear 3's transmission, the direction of two No. 5 straight-teeth plates motion is just in time opposite with two straight-teeth plates 4 motion, move towards one side of a splint 10 through two No. 7 pulling of two connecting rods promptly No. two splint 11, splint 10 and No. two splint 11 just can realize drawing close each other like this, realized the clamp to the work piece, in addition because the shape of different work pieces is different, probably there is the edge and corner, the edge and corner can contact rubber shell fragment 17 this moment, promote No. four splint 16 and expand to the outside, reset spring 21 possesses the stretchability, can make No. four splint 16 press from both sides tight work piece equally.

Wherein, the first clamping plate 10 is provided with a guide hole 20 at the joint of the two second connecting rods 7, so that the first clamping plate 10 can be conveniently penetrated to drive the second clamping plate 11 to move.

Wherein, equal fixedly connected with antiskid cushion 13 on the relative side of splint 10 No. two splint 11, when playing the protection to the work piece, also avoid the work piece to sideslip.

Wherein, the third splint 14 is provided with a plurality of wear-resisting balls 15 on the opposite side of the fourth splint 16, which enhances the wear resistance, so that the workpiece can be clamped more tightly.

The four-clamp plate 16 is fixedly connected with the rubber elastic sheet 17 on the side face corresponding to the three-clamp plate 14, so that the workpieces with edges and corners can be conveniently extruded, and the four-clamp plate is suitable for irregular workpieces with different shapes.

Wherein, No. four splint 16 are whole to be "J" style of calligraphy shape, and No. four splint 16 are located the middle part fixedly connected with sucking disc 18 of rubber shell fragment 17, can hold the work piece through sucking disc 18, further increase the clamp force.

The working principle is as follows: when in use, the whole device is arranged on a lathe, the cylinder 2 is started after the power supply is connected, the first clamping plate 10 is driven to move towards one side of the second clamping plate 11 by the expansion and contraction of the cylinder 2, and the two first connecting rods 6 are driven to expand and contract at the same time, under the transmission of the gear 3, the moving direction of the two second straight tooth plates 5 is just opposite to the moving direction of the two first straight tooth plates 4, namely, the second clamping plate 11 is pulled to move towards one side of the first clamping plate 10 through the two second connecting rods 7, therefore, the first clamping plate 10 and the second clamping plate 11 can be mutually closed, the clamping of the workpiece is realized, and in addition, because the shapes of different workpieces are different, the edges and corners can be occurred, at this time, the edges and corners can contact the rubber elastic sheet 17 to push the fourth clamping plate 16 to expand outwards, the reset spring 21 has the stretchability, and the fourth clamping plate 16 can be also promoted to clamp the workpiece, the clamping force on the workpiece can be further increased under the action of the suction cup 18 and the wear-resistant ball 15.

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. The utility model provides a workpiece clamping device for lathe, includes base plate (1), cylinder (2), splint (10), No. two splint (11), No. three splint (14) and No. four splint (16), its characterized in that: the cylinder (2) is fixedly connected to one end of the upper surface of the base plate (1), one end of a telescopic rod of the cylinder (2) is fixedly connected with a first clamping plate (10), one side, away from the cylinder (2), of the first clamping plate (10) is provided with a second clamping plate (11), two ends of the bottom surfaces of the first clamping plate (10) and the second clamping plate (11) are fixedly connected with sliding blocks (19), the other end of the upper surface of the base plate (1) is provided with a pair of sliding grooves (12), two sliding blocks (19) of the bottom surfaces of the first clamping plate (10) and the second clamping plate (11) are both connected in the corresponding sliding grooves (12) in a sliding mode, a pair of first supports (8) and a pair of second supports (9) are both fixedly connected to the upper surface of the base plate (1) and are positioned on two sides of the cylinder (2), a first connecting rod (6) and a second connecting rod (7) are respectively penetrated and connected between the first supports (8) and the second supports, two the surface of connecting rod (6) just is located two first supports (8) and is fixed all to be equipped with straight-teeth plate (4) No. one, two the surface of connecting rod (7) just is located two second supports (9) between all fixed cover be equipped with straight-teeth plate (5) No. two, two all the meshing is connected with a gear (3) between straight-teeth plate (4) and the No. two straight-teeth plate (5) of homonymy, two gear (3) through shaft swing joint on base plate (1), two the one end of connecting rod (6) is all fixed connection on the side of splint (10), two the one end of No. two connecting rod (7) all runs through splint (10) and terminal surface fixed connection is on the side of splint (11) No. two, the perpendicular fixedly connected with No. three splint (14) of upper surface of splint (10), the upper surface of splint (11) articulates there is No. four splint (16), and a return spring (21) is fixedly connected between the lower surface of the fourth clamping plate (16) and the upper surface of the second clamping plate (11).

2. The workpiece clamping device for the lathe according to claim 1, wherein: a guide hole (20) is formed in the position, located at the connecting position of the two second connecting rods (7), of the first clamping plate (10).

3. The workpiece clamping device for the lathe according to claim 1, wherein: the anti-skidding soft cushions (13) are fixedly connected to the opposite side surfaces of the first clamping plate (10) and the second clamping plate (11).

4. The workpiece clamping device for the lathe according to claim 1, wherein: and a plurality of wear-resistant balls (15) are arranged on the opposite side surfaces of the third clamping plate (14) and the fourth clamping plate (16).

5. The workpiece clamping device for the lathe according to claim 1, wherein: the fourth clamping plate (16) is fixedly connected with a rubber elastic sheet (17) on the side surface corresponding to the third clamping plate (14).

6. The workpiece clamping device for the lathe according to claim 1, wherein: the four-number clamp plate (16) is integrally J-shaped, and the four-number clamp plate (16) is fixedly connected with a sucker (18) in the middle of the rubber elastic sheet (17).