CN212264784U

CN212264784U - Wire tightening mechanism of linear cutting machine for die machining

Info

Publication number: CN212264784U
Application number: CN202020623896.XU
Authority: CN
Inventors: 戴春喜
Original assignee: Guangdong Shengtaixing Metal Materials Co ltd
Current assignee: Guangdong Shengtaixing Metal Materials Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-01-01
Anticipated expiration: 2030-04-23

Abstract

The utility model discloses a tight silk mechanism of wire cut electrical discharge machining bed for mould processing, its technical scheme main points are: the device comprises a guide wheel frame, wherein a first guide wheel is rotatably connected to the guide wheel frame, a servo motor is fixed to the guide wheel frame, a crank disc is fixed to the end portion of a motor shaft of the servo motor, a first swing rod is eccentrically and rotatably connected to the crank disc, a second swing rod is rotatably connected to the end portion of the first swing rod, the second swing rod is rotatably connected to the guide wheel frame, the other end of the second swing rod is rotatably connected to a third swing rod, a supporting plate is rotatably connected to the end portion of the third swing rod, the supporting plate is connected in the guide wheel frame in a sliding mode in the vertical direction, and a second guide wheel is rotatably connected to the supporting plate; when the wire tightening mechanism for the die machining of the wire cutting machine is used, the positions of the second guide wheel and the third guide wheel can be adjusted, the molybdenum wire can be tensioned to the maximum extent as far as possible, the tensioning force is conveniently adjusted, and the operation is convenient.

Description

Wire tightening mechanism of linear cutting machine for die machining

Technical Field

The utility model relates to a mould processing field, in particular to wire tightening mechanism of linear cutting machine for mould processing.

Background

In the process of processing the die, the die plate, the base plate, the clamping plate, the die holder and the like are widely cut in a linear cutting processing mode. During cutting it is necessary to use a wire cutting machine which relies on molybdenum wires for electrical cutting operations. The molybdenum wires are arranged on a wire cutting machine in a winding roller mode and then are tensioned and conveyed by a tensioning wheel.

Can refer to current chinese patent with publication number CN210024008U, it discloses a wire tensioning device of linear cutting machine, belongs to cutting machine technical field, includes: the guide wheel comprises a first guide wheel and a second guide wheel, the first guide wheel and the second guide wheel are respectively rotatably mounted on the guide wheel frame, the wire tensioning assembly is arranged at the bottom of the guide wheel frame, and the wire tensioning assembly comprises: the device comprises a support, a push rod, a vertical rod, an inclined rod and a telescopic device, wherein the two guide wheels are in transmission connection with the other end of the vertical rod through an electrode wire.

The wire tightening device of the linear cutting machine has the advantage of adjusting the tension of the molybdenum wire. However, the wire tensioning device of the linear cutting machine still has some disadvantages, such as: the position of only one guide wheel can be adjusted, and only the molybdenum wire near the guide wheel is in a reliable tensioning state when the tensioning force is adjusted, so that the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

To the problem mentioned in the background art, the utility model aims at providing a wire tightening mechanism of a wire cutting machine for die machining to solve the problem mentioned in the background art.

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

a tight silk mechanism of wire cut electrical discharge machining bed for mould processing, including the guide pulley frame, it is connected with first guide pulley to rotate on the guide pulley frame, be fixed with servo motor on the guide pulley frame, servo motor's motor shaft end is fixed with the crank disc, eccentric rotation is connected with first pendulum rod on the crank disc, the tip of first pendulum rod rotates and is connected with the second pendulum rod, the second pendulum rod with rotate between the guide pulley frame and be connected, the other end of second pendulum rod rotates and is connected with the third pendulum rod, the tip of third pendulum rod rotates and is connected with the backup pad, the backup pad slides along vertical direction and connects in the guide pulley frame, it is connected with the second guide pulley to rotate in the backup pad, there is the sliding seat along vertical direction sliding connection on the guide pulley frame, it is connected with the third guide pulley to rotate on the sliding.

Preferably, a T-shaped seat is fixed on the guide wheel frame, the sliding seat is connected in an opening of the T-shaped seat in a sliding mode along the vertical direction, a driving screw rod is connected in the T-shaped seat in a threaded mode, and the end portion of the driving screw rod is rotatably connected to the top of the sliding seat.

Preferably, guide blocks are respectively fixed on two sides of the sliding seat, and guide grooves matched with the guide blocks are respectively formed in two sides of an opening of the T-shaped seat.

Preferably, the guide block is a dovetail block, and the guide groove is a dovetail groove matched with the guide block.

Preferably, a fixed disk is fixed at the end of the drive screw, and a handle is eccentrically fixed on one surface of the fixed disk, which is far away from the drive screw.

Preferably, the guide wheel frame is fixed with a clip-shaped sleeve, and the support plate is connected in the clip-shaped sleeve in a sliding manner along the vertical direction.

Preferably, a flange is fixed at the end of the rotating shaft of the first guide wheel, and the flange is fixed on the guide wheel frame through a plurality of locking bolts.

Preferably, the rotating shaft of the second guide wheel is in threaded connection with the inside of the supporting plate, and two pressing sleeves are further in threaded connection with the outside of the rotating shaft of the second guide wheel.

To sum up, the utility model discloses following beneficial effect has at least:

when the wire tensioning mechanism for the die machining of the wire cutting machine tool is used, molybdenum wires wound outside a first guide wheel, a second guide wheel and a third guide wheel in a guide wheel frame can be tensioned, when tensioning is carried out, on one hand, a crank disc can be driven to rotate by starting a servo motor, a first swing rod, a second swing rod and a third swing rod are driven to swing, a supporting plate is driven to vertically slide in the guide wheel frame, the position of the second guide wheel in the supporting plate is driven to be adjusted, tensioning force adjustment is carried out, on the other hand, a sliding seat on the guide wheel frame can be slid to drive the third guide wheel to carry out position adjustment, and therefore the wire tensioning mechanism for the die machining of the wire cutting machine tool can adjust the positions of the second guide wheel and the third guide wheel, the molybdenum wires can be tensioned to the maximum degree as far as possible, the tensioning.

Drawings

Fig. 1 is one of the schematic structural diagrams of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic structural view of the present invention after hiding part of the wheel frame;

fig. 4 is a second schematic structural diagram of the present invention.

Reference numerals: 1. a guide wheel frame; 2. a first guide wheel; 3. a servo motor; 4. a crank disk; 5. a first swing link; 6. a second swing link; 7. a third swing link; 8. a support plate; 9. a second guide wheel; 10. a sliding seat; 11. a third guide wheel; 12. a T-shaped seat; 13. a drive screw; 14. a guide block; 15. a guide groove; 16. fixing the disc; 17. a handle; 18. a square-shaped sleeve is sleeved; 19. a flange plate; 20. locking the bolt; 21. and (4) a compression sleeve.

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.

Example 1

Referring to fig. 1, 3 and 4, the wire tightening mechanism of the wire cutting machine for die processing comprises a guide wheel frame 1; in order to adjust the tension of the molybdenum wire on the guide wheel frame 1, a first guide wheel 2 is rotatably connected to the guide wheel frame 1, a servo motor 3 is fixed to the guide wheel frame 1, a crank disc 4 is fixed to the end portion of a motor shaft of the servo motor 3, a first swing rod 5 is eccentrically and rotatably connected to the crank disc 4, a second swing rod 6 is rotatably connected to the end portion of the first swing rod 5, the second swing rod 6 is rotatably connected to the guide wheel frame 1, a third swing rod 7 is rotatably connected to the other end of the second swing rod 6, a support plate 8 is rotatably connected to the end portion of the third swing rod 7, the support plate 8 is connected to the guide wheel frame 1 in a sliding mode in the vertical direction, a second guide wheel 9 is rotatably connected to the support plate 8, a sliding seat 10 is slidably connected to the guide wheel frame 1 in the vertical direction, and a third guide wheel 11 is.

Referring to fig. 1, 3 and 4, when the wire tensioning mechanism of the wire cutting machine for die machining is in use, molybdenum wires wound around the outside of a first guide wheel 2, a second guide wheel 9 and a third guide wheel 11 in a guide wheel frame 1 can be tensioned, when tensioning is performed, on one hand, a servo motor 3 can be started to drive a crank disc 4 to rotate, so as to drive a first swing rod 5, a second swing rod 6 and a third swing rod 7 to swing, further drive a support plate 8 to vertically slide in the guide wheel frame 1, drive the second guide wheel 9 on the support plate 8 to adjust the position, and adjust the tension, on the other hand, a sliding seat 10 on the guide wheel frame 1 can be slid to drive the third guide wheel 11 to adjust the position, so that the wire tensioning mechanism of the wire cutting machine for die machining can adjust the positions of the second guide wheel 9 and the third guide wheel 11, can tension the molybdenum wires to the greatest extent as possible, and conveniently adjust the tension, the operation is more convenient.

Referring to fig. 1 and 2, in order to drive the sliding seat 10 to slide, a T-shaped seat 12 is fixed on the wheel frame 1, the sliding seat 10 is connected in an opening of the T-shaped seat 12 in a sliding manner along a vertical direction, a driving screw 13 is connected in the T-shaped seat 12 in a threaded manner, an end of the driving screw 13 is rotatably connected to the top of the sliding seat 10, and when an operator rotates the driving screw 13, the sliding seat 10 can be driven to vertically slide in the opening of the T-shaped seat 12, so that the position of the third guide wheel 11 can be adjusted.

Referring to fig. 1 and 2, in order to guide the vertical sliding of the sliding seat 10, guide blocks 14 are respectively fixed on two sides of the sliding seat 10, guide grooves 15 matched with the guide blocks 14 are respectively formed on two sides of the opening of the T-shaped seat 12, and the sliding of the sliding seat 10 can be guided under the matching of the guide blocks 14 and the guide grooves 15; the guide block 14 is a dovetail block, and the guide groove 15 is a dovetail groove matched with the guide block 14, so that the guide block 14 has the advantage of stable sliding when being the dovetail block.

Referring to fig. 1 and 4, in order to facilitate an operator to drive the driving screw 13 to rotate, a fixed disk 16 is fixed at an end of the driving screw 13, a handle 17 is eccentrically fixed on a surface of the fixed disk 16 facing away from the driving screw 13, and when the operator rotates the handle 17 on the fixed disk 16, the driving screw 13 can be driven to rotate.

Referring to fig. 3 and 4, a clip-shaped sleeve 18 is fixed on the guide wheel frame 1, the support plate 8 is slidably connected in the clip-shaped sleeve 18 along the vertical direction, and the stability of the vertical sliding of the support plate 8 can be increased by the clip-shaped sleeve 18.

Referring to fig. 1 and 3, in order to facilitate the installation of the first guide wheel 2 on the guide wheel frame 1, a flange 19 is fixed at the end of the rotating shaft of the first guide wheel 2, the flange 19 is fixed on the guide wheel frame 1 through four locking bolts 20, and the installation of the first guide wheel 2 can be facilitated by the flange 19 and the locking bolts 20; in order to facilitate the installation of the second guide wheel 9, the rotating shaft of the second guide wheel 9 is connected in the supporting plate 8 in a threaded manner, two pressing sleeves 21 are further connected outside the rotating shaft of the second guide wheel 9 in a threaded manner, and when the pressing sleeves 21 are screwed down, the second guide wheel 9 can be fully locked.

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 tight silk mechanism of wire cut electrical discharge machining bed for mould processing, including guide wheel frame (1), its characterized in that: the guide wheel frame (1) is rotatably connected with a first guide wheel (2), a servo motor (3) is fixed on the guide wheel frame (1), a crank disc (4) is fixed at the end part of a motor shaft of the servo motor (3), a first swing rod (5) is eccentrically and rotatably connected on the crank disc (4), a second swing rod (6) is rotatably connected at the end part of the first swing rod (5), the second swing rod (6) is rotatably connected with the guide wheel frame (1), the other end of the second swing rod (6) is rotatably connected with a third swing rod (7), a support plate (8) is rotatably connected at the end part of the third swing rod (7), the support plate (8) is connected in the guide wheel frame (1) in a sliding manner along the vertical direction, a second guide wheel (9) is rotatably connected on the support plate (8), and a sliding seat (10) is slidably connected on the guide wheel frame (1) along the vertical direction, and a third guide wheel (11) is rotatably connected to the sliding seat (10).

2. The wire tensioning mechanism of the wire cutting machine for die processing according to claim 1, wherein: the guide wheel frame (1) is fixedly provided with a T-shaped seat (12), the sliding seat (10) is connected in the opening of the T-shaped seat (12) in a sliding mode along the vertical direction, a driving screw rod (13) is connected to the T-shaped seat (12) in an internal thread mode, and the end portion of the driving screw rod (13) is rotatably connected to the top of the sliding seat (10).

3. The wire tensioning mechanism of the wire cutting machine for die processing according to claim 2, wherein: guide blocks (14) are respectively fixed on two sides of the sliding seat (10), and guide grooves (15) matched with the guide blocks (14) are respectively formed in two sides of an opening of the T-shaped seat (12).

4. The wire tensioning mechanism of the wire cutting machine for die processing according to claim 3, wherein: the guide block (14) is a dovetail block, and the guide groove (15) is a dovetail groove matched with the guide block (14).

5. The wire tensioning mechanism of the wire cutting machine for die processing according to claim 2, wherein: the end part of the driving screw rod (13) is fixed with a fixed disc (16), and a handle (17) is eccentrically fixed on one surface of the fixed disc (16) deviating from the driving screw rod (13).

6. The wire tensioning mechanism of the wire cutting machine for die processing according to claim 1, wherein: the guide wheel frame (1) is fixedly provided with a square-shaped sleeve (18), and the support plate (8) is connected in the square-shaped sleeve (18) in a sliding manner along the vertical direction.

7. The wire tensioning mechanism of the wire cutting machine for die processing according to claim 1, wherein: and a flange plate (19) is fixed at the end part of the rotating shaft of the first guide wheel (2), and the flange plate (19) is fixed on the guide wheel frame (1) through a plurality of locking bolts (20).

8. The wire tensioning mechanism of the wire cutting machine for die processing according to claim 1, wherein: the rotating shaft of the second guide wheel (9) is in threaded connection with the inside of the supporting plate (8), and two pressing sleeves (21) are further in threaded connection with the outside of the rotating shaft of the second guide wheel (9).