CN213105711U

CN213105711U - Automatic workpiece positioning device of common lathe

Info

Publication number: CN213105711U
Application number: CN202021771468.8U
Authority: CN
Inventors: 张振
Original assignee: Suzhou Sudelan Railway Accessories Co ltd
Current assignee: Suzhou Sudelan Railway Accessories Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-04
Anticipated expiration: 2030-08-21

Abstract

The utility model relates to an automatic positioning workpiece device of a common lathe, which comprises a workbench, wherein a plurality of driving cylinders for clamping workpieces are arranged at the peripheral edge of the workbench, and piston rods of the driving cylinders are butted with the side wall of the workpiece; a base is fixed below the workbench, and a plurality of hydraulic cylinders are vertically arranged between the base and the workbench; a push rod is fixed on a piston rod of the hydraulic cylinder, a through hole for the push rod to penetrate is vertically arranged on the workbench in a penetrating mode above the push rod, and the push rod is abutted to the edge of the lower surface of the workpiece. The utility model discloses a it is spacing to drive actuating cylinder and come to carry out automatic centre gripping to the work piece, comes to support the work piece through the ejector pin for the work piece can be more stably by the centre gripping, thereby has improved the processingquality of work piece.

Description

Automatic workpiece positioning device of common lathe

Technical Field

The utility model belongs to the technical field of the technique of lathe accessory and specifically relates to an automatic positioning work piece device of center lathe is related to.

Background

The lathe is widely applied in the field of machining, is the most widely applied machine in the mechanical industry since its birth, can be used for turning outer circles, end faces, cone bodies, inner and outer grooves, special surfaces and threads, can also be used for drilling, boring and reaming, and can also be used for cutting, knurling, winding springs and the like. The workpiece clamping and positioning device of the conventional common lathe has low automatic processing performance in the use process, and needs a worker to perform complicated operation, so that the working efficiency of the device is reduced.

The chinese patent with publication number CN209986596U discloses an automatic workpiece clamping device for a common lathe, which comprises a base, the bottom of the base is provided with symmetrically distributed chutes, the inside mounting of the base is provided with a controller, the top of the controller is provided with a placing table, the top of the placing table is provided with a plurality of supporting tubes, the inside mounting of the supporting tubes is provided with a hydraulic cylinder, the bottom of the hydraulic cylinder is provided with a lifting column, the top of the lifting column is embedded in the hydraulic cylinder and is in clearance fit with the inner wall of the hydraulic cylinder, the side surface of the lifting column is provided with a lantern ring, a clamp is arranged between the lantern rings, and the clamp is welded with the lantern ring.

According to the scheme, when a workpiece is placed on the placing table, the infrared sensor and the pressure sensor are used for detecting, and then the controller automatically controls the air cylinder and the hydraulic cylinder to work, so that the clamp clamps the workpiece; the automatic processing performance is good, and the working efficiency is high. However, in the above scheme, the workpiece is supported by the cylinder and the suction disc, and when the workpiece is drilled, the workpiece is easy to slide downwards or even fall off, so that the quality of lathe machining is seriously affected. Therefore, it is necessary to design an automatic workpiece positioning device capable of improving the stability of workpiece clamping, thereby improving the machining quality of the lathe.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing an improve the stability of work piece clamping to improve lathe processingquality's automatic positioning work piece device.

The above technical purpose of the present invention can be achieved by the following technical solutions: the automatic workpiece positioning device of the common lathe comprises a workbench, wherein a plurality of driving cylinders for clamping workpieces are arranged at the peripheral edge of the workbench, and piston rods of the driving cylinders are abutted against the side walls of the workpieces; a base is fixed below the workbench, and a plurality of hydraulic cylinders are vertically arranged between the base and the workbench; a push rod is fixed on a piston rod of the hydraulic cylinder, a through hole for the push rod to penetrate is vertically arranged above the push rod on the workbench in a penetrating mode, and the push rod is abutted to the edge of the lower surface of the workpiece.

Through adopting above-mentioned technical scheme, place the work piece at the central point of workstation and put for the work piece is placed on the ejector pin, and the ejector pin is located the edge of work piece. Then the hydraulic cylinder drives the ejector rod to move upwards, and the ejector rod lifts the workpiece, so that the workpiece is far away from the workbench. After the workpiece reaches a certain height, the piston rod of the driving air cylinder moves towards the workpiece, and the piston rod of the driving air cylinder is abutted against the side wall of the workpiece to clamp and position the workpiece. Then, the lathe can be started to perform machining treatment such as drilling on the workpiece. This application carries out the centre gripping spacing to the work piece through driving actuating cylinder, comes to support the work piece through the ejector pin for the work piece can be by the centre gripping more stably. Compared with the traditional mode, the machining quality of the workpiece is improved.

The present invention may be further configured in a preferred embodiment as: the hydraulic cylinders are arranged in a number of three and are uniformly distributed around the base.

Through adopting above-mentioned technical scheme, the contained angle between two adjacent ejector pins is 120 degrees like this, can make the work piece place more stably.

The present invention may be further configured in a preferred embodiment as: a sliding rail is further arranged below each hydraulic cylinder on the base, a sliding block is arranged on each sliding rail, and the bottom ends of the hydraulic cylinders are fixed on the sliding blocks; still be provided with the drive slider on the base and the pneumatic cylinder carries out the drive arrangement who removes along the slide rail, the opening sets to waist shape hole, the ejector pin slides in waist shape hole.

Through adopting above-mentioned technical scheme, when processing the work piece of different dimensions, drive arrangement drive hydraulic cylinder moves along the slide rail for the ejector pin is kept away from or is close to the work piece. The position of the ejector rod is adjusted, so that the ejector rod is abutted to the edge of the lower surface of the workpiece, the stability of workpiece clamping can be improved, and the interference of the ejector rod on the machining of the workpiece can be prevented.

The present invention may be further configured in a preferred embodiment as: the driving device comprises a driving motor arranged on the base, and a threaded rod is fixed on a rotating shaft of the driving motor; the threaded rod is parallel to the sliding rail, and the sliding block is in threaded connection with the threaded rod; the base is further fixed with mounting blocks at two ends of the sliding rail in the length direction, and two ends of the threaded rod in the length direction are respectively connected with the two mounting blocks through bearings in a rotating mode.

Through adopting above-mentioned technical scheme, driving motor drives the threaded rod and rotates to make the slider drive the pneumatic cylinder and move on the slide rail, thereby make the ejector pin keep away from or be close to the work piece, with adjusting the ejector pin to suitable position.

The present invention may be further configured in a preferred embodiment as: and a telescopic protective sleeve is further sleeved on the threaded rod.

Through adopting above-mentioned technical scheme, can prevent like this that the processing piece from spattering on the threaded rod to influence the slip of slider.

The present invention may be further configured in a preferred embodiment as: the one end that the piston rod of driving actuating cylinder is close to the work piece still dismantles and is connected with the kicking block, the kicking block is contradicted with the work piece lateral wall.

Through adopting above-mentioned technical scheme, the staff can change different kicking blocks according to the shape and the size of work piece, realizes carrying out better more stable centre gripping to the work piece to improve the processingquality of work piece.

The present invention may be further configured in a preferred embodiment as: the ejector block is further provided with a rubber pad, and the upper surface of the ejector rod is also provided with the rubber pad.

Through adopting above-mentioned technical scheme, make the work piece can place on the ejector pin more stably like this for the work piece can be more firm with the clamping.

The present invention may be further configured in a preferred embodiment as: and the edge of the through hole on the workbench is also provided with scale marks.

Through adopting above-mentioned technical scheme, the staff of can being convenient for like this comes the position of accurate adjustment ejector pin fast according to the work piece size of treating processing to make the work piece can be more firm by the clamping.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the arrangement of the workbench, the base, the driving cylinder, the hydraulic cylinder, the ejector rod and the through opening, the effect of stably and automatically clamping the workpiece can be achieved;

2. through the arrangement of the driving motor, the threaded rod and the sliding block, the position of the ejector rod can be quickly adjusted, so that the effect of stably clamping the workpiece is achieved;

3. through the setting of rubber pad, can play and make the more stable effect that the work piece can be by the clamping.

Drawings

FIG. 1 is a schematic view of the overall structure of the automatic positioning workpiece apparatus;

fig. 2 is a schematic sectional view of the entire structure of the automatic workpiece positioning device.

In the figure, 1, a workbench; 2. a base; 3. a driving cylinder; 4. mounting a plate; 5. a top block; 6. a port; 7. a hydraulic cylinder; 8. a top rod; 9. a slide rail; 10. a drive motor; 11. a threaded rod; 12. a slider; 13. a protective sleeve; 14. scale lines are marked.

Detailed Description

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

Referring to fig. 1 and 2, for the utility model discloses an automatic positioning workpiece device of a common lathe, including workstation 1, workstation 1 bottom is fixed with base 2 through the bracing piece. Workstation 1 and base 2 all are the disc, and the edge all around of workstation 1 evenly is provided with a plurality of drive actuating cylinders 3 that are used for the centre gripping work piece. In this embodiment, three driving cylinders 3 are provided, and a piston rod of each driving cylinder 3 abuts against a side wall of a workpiece. Still vertically install three pneumatic cylinder 7 on base 2 between it and workstation 1, three pneumatic cylinder 7 is evenly distributed around base 2. A push rod 8 is fixed on a piston rod of the hydraulic cylinder 7, a through hole 6 for the push rod 8 to penetrate is vertically arranged above the push rod 8 on the workbench 1 in a penetrating mode, and the push rod 8 is abutted to the edge of the lower surface of the workpiece. The staff places the work piece in the central point of workstation 1 puts for the work piece is placed on ejector pin 8, and ejector pin 8 is located the edge of work piece. Then the hydraulic cylinder 7 drives the ejector rod 8 to move upwards, and the ejector rod 8 lifts the workpiece, so that the workpiece is far away from the workbench 1. After the workpiece reaches a certain height, the piston rod of the driving cylinder 3 moves towards the workpiece, and the piston rod of the driving cylinder 3 is abutted against the side wall of the workpiece to clamp and position the workpiece. This application carries out the centre gripping spacing to the work piece through driving actuating cylinder 3, supports the work piece through ejector pin 8 for the work piece can be more stably by the centre gripping. Compared with the traditional mode, the machining quality of the workpiece is improved.

Referring to fig. 1 and 2, a slide rail 9 is further provided on the base 2 below each hydraulic cylinder 7, and the slide rail 9 is provided along a radial direction of the base 2. A driving motor 10 is further fixed to one end of the base 2 in the length direction of the sliding rail 9, a threaded rod 11 is fixedly connected to a rotating shaft of the driving motor 10, and the threaded rod 11 is parallel to the sliding rail 9. The base 2 is further fixed with mounting blocks at two ends of the sliding rail 9 in the length direction, and two ends of the threaded rod 11 in the length direction are respectively connected with the two mounting blocks through bearings in a rotating mode. Threaded rod 11 is last still threaded connection have slider 12, and the bottom mounting of pneumatic cylinder 7 is on slider 12. The drive motor 10 drives the threaded rod 11 to rotate, so that the slide block 12 drives the hydraulic cylinder 7 to move on the slide rail 9. Opening 6 sets to waist shape hole, and pneumatic cylinder 7 drives ejector pin 8 and slides in opening 6. When workpieces with different sizes are processed, the driving motor 10 drives the hydraulic cylinder 7 to move along the slide rail 9, so that the ejector rod 8 is far away from or close to the workpieces. The position of the ejector rod 8 is adjusted, so that the ejector rod 8 is abutted to the edge of the lower surface of the workpiece, the stability of workpiece clamping can be improved, and the interference of the ejector rod 8 on the machining of the workpiece can be prevented. The edge of the through hole 6 on the workbench 1 is also provided with scale marks 14, so that the position of the mandril 8 can be quickly and accurately adjusted by a worker.

Referring to fig. 2, a retractable protective sleeve 13 is further sleeved on the threaded rod 11, so that machining debris can be prevented from splashing onto the threaded rod 11, and the sliding of the sliding block 12 can be prevented from being influenced.

Referring to fig. 2, a mounting plate 4 is fixed to one end of the piston rod of the driving cylinder 3 close to the workpiece, and a top block 5 is connected to the mounting plate 4 through a bolt. Different ejector blocks 5 can be replaced by workers according to the shapes and sizes of the workpieces, so that the workpieces can be clamped better and more stably, and the processing quality of the workpieces is improved. A rubber pad is arranged on the end face, close to the workpiece, of the ejector block 5, and a rubber pad is also arranged on the upper surface of the ejector rod 8. Therefore, the friction force between the ejector block 5 and the ejector rod 8 and the surface of the workpiece can be increased, and the stability of workpiece clamping is improved.

The implementation principle of the embodiment is as follows: the worker selects an appropriate top block 5 to be mounted on the piston rod of the driving cylinder 3 according to the shape and size of the workpiece to be machined. The driving motor 10 then drives the hydraulic cylinder 7 to move along the slide rail 9, so that the push rod 8 slides in the through hole 6, and the position of the push rod 8 is adjusted through the scale marks 14. The worker then places the workpiece on the ejector pin 8, and makes the ejector pin 8 be located at the edge of the workpiece. Then the hydraulic cylinder 7 drives the ejector rod 8 to move upwards, and the ejector rod 8 lifts the workpiece, so that the workpiece is far away from the workbench 1. After the workpiece reaches a certain height, the piston rod of the driving cylinder 3 moves towards the workpiece, so that the top block 5 is abutted against the side wall of the workpiece to clamp and position the workpiece. This application carries out the centre gripping spacing to the work piece through driving actuating cylinder 3, supports the work piece through ejector pin 8 for the work piece can be more stably by the centre gripping. Compared with the traditional mode, the machining quality of the workpiece is improved.

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 an automatic positioning work piece device of center lathe, includes workstation (1), its characterized in that: a plurality of driving cylinders (3) used for clamping workpieces are arranged at the peripheral edges of the workbench (1), and piston rods of the driving cylinders (3) are abutted against the side walls of the workpieces; a base (2) is further fixed below the workbench (1), and a plurality of hydraulic cylinders (7) are further vertically arranged between the base (2) and the workbench (1); be fixed with ejector pin (8) on the piston rod of pneumatic cylinder (7), vertical the running through in the top of ejector pin (8) is provided with opening (6) that supply ejector pin (8) to pass on workstation (1), ejector pin (8) are contradicted with the edge of work piece lower surface.

2. The automatic workpiece positioning device for a lathe according to claim 1, wherein: the hydraulic cylinders (7) are arranged in three numbers, and the hydraulic cylinders (7) are uniformly distributed on the periphery of the base (2).

3. The automatic workpiece positioning device for a lathe according to claim 2, wherein: a sliding rail (9) is further arranged below each hydraulic cylinder (7) on the base (2), a sliding block (12) is arranged on the sliding rail (9), and the bottom end of each hydraulic cylinder (7) is fixed on the sliding block (12); still be provided with drive slider (12) and pneumatic cylinder (7) on base (2) and carry out the drive arrangement who removes along slide rail (9), opening (6) set to waist shape hole, ejector pin (8) slide in waist shape hole.

4. An automatic workpiece positioning device for a lathe according to claim 3, wherein: the driving device comprises a driving motor (10) arranged on the base (2), and a threaded rod (11) is fixed on a rotating shaft of the driving motor (10); the threaded rod (11) is parallel to the sliding rail (9), and the sliding block (12) is in threaded connection with the threaded rod (11); the base (2) is further fixed with mounting blocks at two ends of the sliding rail (9) in the length direction, and two ends of the threaded rod (11) in the length direction are rotatably connected with the two mounting blocks through bearings respectively.

5. An automatic workpiece positioning device for a lathe according to claim 4, wherein: and a telescopic protective sleeve (13) is further sleeved on the threaded rod (11).

6. An automatic workpiece positioning device for a lathe according to claim 5, wherein: the one end that the piston rod of drive actuating cylinder (3) is close to the work piece still dismantles and is connected with kicking block (5), kicking block (5) are contradicted with the work piece lateral wall.

7. An automatic workpiece positioning device for a lathe as set forth in claim 6, wherein: the ejector block (5) is further provided with a rubber pad, and the upper surface of the ejector rod (8) is also provided with a rubber pad.

8. An automatic workpiece positioning device for a lathe as set forth in claim 7, wherein: and scale marks (14) are also arranged on the edge of the through hole (6) on the workbench (1).