Direct drive structure of electric servo bending machine

Abstract

The direct drive structure of the electric servo bending machine comprises a bending machine body, and installation plates are symmetrically installed in the middle of the bending machine body. The top of one mounting plate is fixedly connected with a servo motor; the output end of the servo motor is fixedly connected with a screw rod; the screw rod is rotationally connected with the mounting plate; the middle part of the lead screw is in threaded connection with an upper die; the upper die is in sliding connection with the mounting plate; the inner side wall of the other mounting plate is fixedly connected with a guide rod; a sliding groove is formed in the surface of the upper die. The sliding groove and the guide rod are connected in a sliding mode. And by arranging the guide rods, the upper die can be guided by the sliding grooves and the guide rods when moving under the transmission effect of the lead screws, the stability and accuracy of the upper die during moving are improved, and deviation generated during moving of the upper die is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of bending machine, concretely is electric servo bending machine direct drive structure. BACKGROUND

[0002] The bending machine makes the flat or bar workpiece bend and deform through the pressure, thereby changing its shape. Its working principle mainly depends on mechanical transmission or hydraulic transmission system, provides power through the driving device, makes the relative movement between the workbench and the pressing plate, thereby bending the workpiece. The existing bending machine usually controls the upper die in the mode of hydraulic drive, and it is found in use and observation that the precision is difficult to accurately control when the upper die moves because of the impact of oil flow when flowing, thereby reducing the stability of the upper die movement. SUMMARY

[0003] In order to make up for the deficiency of the prior art, the utility model solves the technical problems thereof by adopting the technical scheme of:

[0004] The electric servo bending machine direct drive structure comprises a bending machine body, the middle part of the bending machine body is symmetrically provided with mounting plates, one top of the mounting plate is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a lead screw, the lead screw and the mounting plate are rotationally connected, the middle part of the lead screw is threadedly connected with an upper die, the upper die and the mounting plate are slidably connected, the inner side wall of the other mounting plate is fixedly connected with a guide rod, the surface of the upper die is provided with a sliding groove, and the sliding groove and the guide rod are slidably connected.

[0005] Preferably, the inner side wall of the sliding groove is rotationally connected with a plurality of ball bearings, and the ball bearings are equidistantly arranged. By arranging the ball bearings, the ball bearings rotate when the upper die slides along the guide rod, thereby reducing the wear caused by friction between the upper die and the guide rod, and prolonging the service life of the upper die and the guide rod.

[0006] Preferably, the top of the upper die is fixedly connected with an oil box; a sliding rod is slidably connected with the middle part of the oil box; a pressing plate is fixedly connected with the end of the sliding rod; the pressing plate and the oil box are slidably connected; the other end of the sliding rod is fixedly connected with a top plate; a spring is fixedly connected between the top plate and the oil box; an oil pipe is communicated with the middle part of the oil box; the oil pipe and the sliding groove are correspondingly arranged; the sliding groove is inclinedly arranged; the upper die slides along the mounting plate under the driving of the lead screw, the oil box moves together with the upper die, when the upper die moves to the highest point, the top plate contacts and is pressed by the inner wall of the mounting plate, the sliding rod slides along the oil box and makes the spring in the compressed state, the sliding rod moves together with the pressing plate and presses the lubricating oil at the bottom, the lubricating oil flows into the oil pipe under the pressing and flows out from the end of the oil pipe, the flowing-out lubricating oil enters the inside of the sliding groove through the oil pipe, because the sliding groove is inclinedly arranged, the lubricating oil can easily enter the inside of the sliding groove and lubricates the inner wall of the sliding groove and the ball, the smoothness of the surface of the sliding groove and the ball is improved, and the friction between the upper die and the guide rod is further reduced.

[0007] Preferably, the top of the upper die is fixedly connected with a vertical rod; the top of the vertical rod is fixedly connected with a supporting ring; the oil pipe is arranged in the inside of the supporting ring; the oil pipe passes through the supporting ring, the supporting ring provides additional reinforcing action for the oil pipe under the supporting action of the vertical rod, the stability of the oil pipe during work is improved, and it is ensured that the lubricating oil can stably flow out of the oil pipe.

[0008] Preferably, the bottom of the upper die is fixedly connected with a sleeve; the bottom of the inner wall of the mounting plate is fixedly connected with a convex rod; the convex rod and the sleeve are slidably connected; when the upper die slides along the mounting plate, the sleeve also moves together with the upper die, the sleeve slides along the convex rod, so that the upper die receives additional guiding action during movement, and the stability of the upper die during movement is further improved.

[0009] Preferably, the bottom of the upper die is fixedly connected with a sponge; the sponge and the sliding groove are correspondingly arranged; the lubricating oil sprayed by the oil pipe flows through the sliding groove, the flowing lubricating oil flows to the sponge and is absorbed by the sponge, the lubricating oil hanging at the bottom of the upper die is reduced, and the pollution of the excessive lubricating oil to the inside of the mounting plate is reduced.

[0010] Preferably, the bender body is boltedly connected with a baffle in the middle part; the baffle is in L-shaped structure; when the plate material is bent, the baffle can be installed on both sides of the bender body to close the plate material during bending, and the splashing range of the chips generated during bending of the plate material is reduced.

[0011] The bender has the advantages that:

[0012] 1. By setting the guide rod, the upper die is guided by the sliding groove and the guide rod when the upper die moves under the action of the lead screw transmission, the stability and precision of the upper die movement are improved, and the deviation of the upper die movement is reduced.

[0013] 2. By setting the ball, the ball rotates when the upper die slides along the guide rod, reducing the wear between the upper die and the guide rod caused by friction, prolonging the service life of the upper die and the guide rod. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the appearance structure diagram of the utility model;

[0015] Figure 2 It is the upper die installation structure diagram;

[0016] Figure 3 It is the oil box installation structure diagram;

[0017] Figure 4 It is the convex rod installation structure diagram;

[0018] Figure 5 It is the pressing plate installation structure diagram.

[0019] In the drawing: 1, bending machine body; 12, mounting plate; 13, servo motor; 14, lead screw; 15, upper die; 16, guide rod; 2, sliding groove; 22, ball; 3, oil box; 32, pressing plate; 33, sliding rod; 34, top plate; 35, spring; 36, oil pipe; 4, vertical rod; 42, support ring; 5, convex rod; 52, sleeve; 6, sponge; 7, baffle. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] The specific embodiments are given below.

[0022] Please refer to Figures 1 to 5The utility model discloses an electric servo bending machine direct drive structure, including bending machine body 1, the middle part symmetrical mounting of bending machine body 1 has mounting plate 12, one of the mounting plate 12 top fixedly connected with servo motor 13, the output of servo motor 13 is fixedly connected with screw rod 14, the screw rod 14 and mounting plate 12 are rotationally connected, the middle part screw connection of screw rod 14 has upper die 15, the upper die 15 and mounting plate 12 are slidingly connected, the other mounting plate 12 inner wall is fixedly connected with guide rod 16, the upper die 15 surface is seted up with sliding slot 2, the sliding slot 2 and guide rod 16 are slidingly connected, when the staff needs to start bending machine body 1, can make screw rod 14 rotate through starting servo motor 13, and screw rod 14 rotates and will drive upper die 15, makes upper die 15 along mounting plate 12 and slide, and the bending tool is installed on upper die 15 through clamp, and upper die 15 will take the tool and extrude bending to the plate material, realizes the quick bending of device to material, and when upper die 15 moves, sliding slot 2 also along guide rod 16 and slide, and guide rod 16 will provide additional guiding effect for upper die 15 through sliding slot 2, improves the stability when upper die 15 moves, through setting up guide rod 16, makes upper die 15 when moving under the transmission effect of screw rod 14 will receive the guiding effect of sliding slot 2 and guide rod 16, improves the stability and accuracy when upper die 15 moves, reduces the deviation when upper die 15 moves.

[0023] Please refer to Figure 4 The inner side wall of the sliding slot 2 is rotatably connected with a plurality of balls 22, the balls 22 are equidistantly arranged, when the upper die 15 slides along the guide rod 16, the balls 22 in the sliding slot 2 will contact the guide rod 16, the balls 22 will rotate under the friction effect, when the balls 22 rotate, the sliding friction between the upper die 15 and the guide rod 16 will be converted into rolling friction, reducing the friction between the upper die 15 and the guide rod 16, through the arrangement of the balls 22, when the upper die 15 slides along the guide rod 16, the balls 22 will rotate, reducing the wear between the upper die 15 and the guide rod 16 caused by friction, prolonging the service life of the upper die 15 and the guide rod 16.

[0024] Please refer to Figure 3 And Figure 5As shown, the top of the upper die 15 is fixed with an oil box 3; the middle of the oil box 3 is provided with a sliding rod 33; the end of the sliding rod 33 is fixed with a pressing plate 32; the pressing plate 32 and the oil box 3 are slidingly connected; the other end of the sliding rod 33 is fixed with a top plate 34; the top plate 34 and the oil box 3 are fixedly connected; the middle of the oil box 3 is communicated with an oil pipe 36; the oil pipe 36 and the sliding groove 2 are correspondingly provided; the sliding groove 2 is inclinedly provided; the upper die 15 slides along the mounting plate 12 under the driving of the lead screw 14, the oil box 3 moves together with the upper die 15, when the upper die 15 moves to the highest point, the top plate 34 contacts with the inner wall of the mounting plate 12 and is extruded, the sliding rod 33 slides along the oil box 3 and makes the spring 35 in the compressed state, the sliding rod 33 moves together with the pressing plate 32 and extrudes the lubricating oil at the bottom, the lubricating oil enters the inside of the oil pipe 36 under the extrusion and flows out from the end of the oil pipe 36, the lubricating oil flows into the inside of the sliding groove 2 through the oil pipe 36, because the sliding groove 2 is inclinedly provided, the lubricating oil can easily enter the inside of the sliding groove 2 and lubricates the inner wall of the sliding groove 2 and the ball 22, improves the smoothness of the sliding groove 2 and the ball 22, further reduces the friction between the upper die 15 and the guide rod 16.

[0025] As shown in Figure 5 As shown, the top of the upper die 15 is fixed with a vertical rod 4; the top of the vertical rod 4 is fixed with a supporting ring 42; the oil pipe 36 is located in the inside of the supporting ring 42; the oil pipe 36 penetrates through the supporting ring 42, the supporting ring 42 provides additional reinforcing action for the oil pipe 36 under the supporting action of the vertical rod 4, improves the stability of the oil pipe 36 during work, ensures that the lubricating oil can stably flow out of the oil pipe 36.

[0026] As shown in Figure 3 And Figure 4 As shown, the bottom of the upper die 15 is fixed with a sleeve 52; the bottom of the inner wall of the mounting plate 12 is fixed with a convex rod 5; the convex rod 5 and the sleeve 52 are slidingly connected; when the upper die 15 slides along the mounting plate 12, the sleeve 52 also moves together with the upper die 15, the sleeve 52 slides along the convex rod 5, so that the upper die 15 receives additional guiding action when moving, further improves the stability of the upper die 15 when moving.

[0027] As shown in Figure 4 As shown, the bottom of the upper die 15 is fixed with a sponge 6; the sponge 6 and the sliding groove 2 are correspondingly provided; the lubricating oil sprayed out of the oil pipe 36 flows through the sliding groove 2, the flowing lubricating oil flows to the sponge 6 and is absorbed by the sponge 6, reducing the lubricating oil hanging at the bottom of the upper die 15, reducing the pollution of excessive lubricating oil to the inside of the mounting plate 12.

[0028] As shown in Figure 1The bender body 1 is provided with a baffle 7 in the middle, the baffle 7 is L-shaped structure, when the staff bends the plate, the baffle 7 can be installed on both sides of the bender body 1 to close the plate during bending, so as to reduce the splashing range of the debris generated during bending.

[0029] Working principle: when the staff needs to start the bender body 1, the servo motor 13 is started to make the lead screw 14 rotate, the lead screw 14 rotates to drive the upper die 15, the upper die 15 slides along the mounting plate 12, the upper die 15 is provided with a bending tool through the clamp, the upper die 15 extrudes and bends the plate with the tool, realizes the rapid bending of the device to the material, and the sliding groove 2 also slides along the guide rod 16 when the upper die 15 moves, the guide rod 16 provides additional guiding action for the upper die 15 through the sliding groove 2, improves the stability of the upper die 15 when moving; when the upper die 15 slides along the guide rod 16, the ball 22 in the sliding groove 2 will contact the guide rod 16, the ball 22 will rotate under the friction, the sliding friction between the upper die 15 and the guide rod 16 will be converted into rolling friction when the ball 22 rotates; the upper die 15 slides along the mounting plate 12 under the driving action of the lead screw 14, the oil box 3 moves with the upper die 15, when the upper die 15 moves to the highest point, the top plate 34 contacts and is extruded by the inner wall of the mounting plate 12, the sliding rod 33 slides along the oil box 3 and makes the spring 35 in compression state, the sliding rod 33 moves with the pressing plate 32 and extrudes the lubricating oil at the bottom, the lubricating oil enters the inside of the oil pipe 36 under the extrusion and flows out from the end of the oil pipe 36, the lubricating oil enters the inside of the sliding groove 2 through the oil pipe 36, because the sliding groove 2 is inclined, the lubricating oil can easily enter the inside of the sliding groove 2 and lubricate the inner wall of the sliding groove 2 and the ball 22, improve the smoothness of the sliding groove 2 and the ball 22; the oil pipe 36 penetrates the support ring 42, the support ring 42 provides additional reinforcement to the oil pipe 36 under the support of the vertical rod 4, improves the stability of the oil pipe 36 when working; when the upper die 15 slides along the mounting plate 12, the sleeve 52 also moves with the upper die 15, the sleeve 52 slides along the convex rod 5, so that the upper die 15 moves and receives additional guiding action; the lubricating oil sprayed by the oil pipe 36 flows through the sliding groove 2, the flowing lubricating oil flows to the sponge 6 and is absorbed by the sponge 6, reduces the lubricating oil hanging at the bottom of the upper die 15.

Claims

1. A direct drive structure of an electric servo bending machine, comprising a bending machine body (1), characterized in that: The middle part of the bending machine body (1) is symmetrically provided with mounting plates (12); one of the mounting plates (12) is fixedly connected with a servo motor (13) at the top; the output end of the servo motor (13) is fixedly connected with a lead screw (14); the lead screw (14) and the mounting plate (12) are rotationally connected; the middle part of the lead screw (14) is threadedly connected with an upper die (15); the upper die (15) and the mounting plate (12) are slidably connected; the inner side wall of the other mounting plate (12) is fixedly connected with a guide rod (16); the surface of the upper die (15) is provided with a sliding groove (2); the sliding groove (2) and the guide rod (16) are slidably connected.

2. The direct drive structure of an electric servo bending machine according to claim 1, characterized in that: The inner side wall of the sliding groove (2) is rotationally connected with a plurality of balls (22); the balls (22) are equidistantly arranged.

3. The direct drive structure of an electric servo bending machine according to claim 1, characterized in that: The top of the upper die (15) is fixedly connected with an oil box (3); the middle part of the oil box (3) is provided with a sliding rod (33) penetratingly arranged and slidably connected; the end of the sliding rod (33) is fixedly connected with a pressing plate (32); the pressing plate (32) and the oil box (3) are slidably connected; the other end of the sliding rod (33) is fixedly connected with a top plate (34); the top plate (34) and the oil box (3) are fixedly connected with a spring (35); the middle part of the oil box (3) is communicated with an oil pipe (36); the oil pipe (36) and the sliding groove (2) are correspondingly arranged; the sliding groove (2) is obliquely arranged.

4. The direct drive structure of an electric servo bending machine according to claim 3, characterized in that: The top of the upper die (15) is fixedly connected with a vertical rod (4); the top of the vertical rod (4) is fixedly connected with a supporting ring (42); the oil pipe (36) is located in the inside of the supporting ring (42).

5. The direct drive structure of an electric servo bending machine according to claim 1, characterized in that: The bottom of the upper die (15) is fixedly connected with a sleeve (52); the bottom of the inner side wall of the mounting plate (12) is fixedly connected with a convex rod (5); the convex rod (5) and the sleeve (52) are slidably connected.

6. The direct drive structure of an electric servo bending machine according to any one of claims 1 to 5, characterized in that: The bottom of the upper die (15) is fixedly connected with a sponge (6); the sponge (6) and the sliding groove (2) are correspondingly arranged.

7. The direct drive structure of an electric servo bending machine according to claim 6, characterized in that: The middle part of the bending machine body (1) is boltedly connected with a baffle (7); the baffle (7) is in L-shaped structure.

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