CN103480765A - Linear motor direct-driven telescopic feeding device for cover stamping line - Google Patents

Abstract

A linear motor direct-driven telescopic feeding device for a cover stamping production line, including a bracket, on which a main bracket is installed, and primary guide rails are installed on both sides of the main bracket, and a primary slider that cooperates with the primary guide rails is installed on the transition bracket Above, the two sides of the transition bracket are installed with secondary guide rails, and the secondary sliders that cooperate with the secondary guide rails are installed on the terminal bracket. On the workpiece picking system, a motor is installed on the workpiece picking system, and the output of the motor is connected to the gear. The rack matched with the gear is installed on the terminal bracket. Two linear motor movers are installed on the transition bracket to cooperate with the linear motor mover. The stator of the linear motor is installed on the main bracket, and the bracket and the workpiece picking system are driven by multi-stage gears and racks to realize material feeding. The invention has the advantages of simple structure, fast moving speed, strong bearing capacity and high precision.

Description

A linear motor direct drive telescopic feeding device for a cover stamping production line

technical field

The invention relates to the technical field of large multi-station presses, in particular to a linear motor direct-driven telescopic feeding device for a cover stamping production line.

Background technique

Large multi-station presses are currently one of the advanced manufacturing equipment for the production of large stamping parts such as automobile panels in the world. Compared with traditional stamping systems, the efficiency is increased by 3 to 5 times, and the overall cost is saved by 40% to 60%. It is equivalent to the integration of multiple presses and unstacking and feeding systems, that is, a multi-station press is equivalent to an automated press production line. More than 70% of the large-scale automobile stamping parts production equipment in Europe, America and other countries and regions are multi-station presses, while the proportion in my country is relatively low. At present, only a few enterprises in China can produce large-scale multi-station presses, and the large-scale multi-station feeding system, one of its core components, has become the focus and difficulty of this equipment research and development.

At present, there are mainly two ways of feeding in large multi-station presses: manual feeding and robot feeding. In the process of manual feeding, workers need to take out the workpiece on the mold and put it into the next station when the press slider is lifted. The disadvantages of this approach are obvious. The work efficiency of workers is slow, the labor intensity is high, and there are many unsafe factors in a heavy machinery working environment such as a multi-station press. Another way is to use robots. The development of robotics technology is very mature nowadays. At present, the robots used in multi-station presses mainly include swinging cross-bar manipulators, parallel four-bar linkage manipulators, and six-degree-of-freedom robots. Most of these robots are complex serial structures, which lead to poor stiffness and complex motion control. The huge motion structure also makes it difficult to improve its working speed. For a movement process that requires only a small number of degrees of freedom such as multi-station feeding, the use of the above types of robots is not efficient. In view of the high maintenance cost of these types of robots, some more simplified equipment is needed to complete the feeding work.

With the development of motor and servo control technology, linear motors are more and more widely used. Linear motors are simple in structure. The linear motor directly produces linear motion without an intermediate conversion mechanism, which greatly simplifies the structure, reduces the motion inertia, greatly improves the dynamic response performance and positioning accuracy; at the same time, it also improves reliability, saves costs, and makes manufacturing and maintenance easier. Therefore, linear motors have broad application prospects in such a system as feeding equipment.

Contents of the invention

In order to overcome the shortcomings of the prior art, the object of the present invention is to provide a linear motor direct-driven telescopic feeding device for a cover stamping production line, which has the advantages of simple structure, fast moving speed, strong bearing capacity and high precision.

In order to achieve the above object, the solution adopted by the present invention is as follows:

A linear motor direct drive telescopic feeding device for a stamping production line of cover parts, including a bracket 1, a main bracket 2 is installed on the bracket 1, a first-level guide rail 3 is installed on both sides of the main bracket 2, and a first-level guide rail 3 matched with the first-level guide rail 3 The slide block 4 is installed on the transition bracket 13, the two sides of the transition bracket 13 are equipped with secondary guide rails 8, and the secondary slide block 12 matched with the secondary guide rails 8 is installed on the terminal bracket 18, and the two sides of the terminal bracket 18 are equipped with three Level guide rail 15, the third level slide block 16 that cooperates with the third level guide rail 15 is installed on the workpiece pick-up system 17,

The main bracket 2 is equipped with a first-level rack 7, and the first-level gear 6 meshed with it is coaxially connected with the first-level pulley 5 and is installed on the transition bracket 13, and the first-level rack 14 is installed On the terminal bracket 18, the first secondary gear 11 meshed with it is coaxially connected with the first secondary pulley 10 and is installed on the transition bracket 13, and the first synchronous belt 9 connects the first primary pulley 5 with the first secondary pulley 10. One and two pulleys 10,

The second-level rack 25 is installed on the main support 2, and the second-level gear 24 meshed with it is coaxially connected with the second-level pulley 23 and is all installed on the transition bracket 13. The second-level rack 19 Installed on the terminal bracket 18, the second secondary gear 21 meshed with it is coaxially connected with the second secondary pulley 20 and is installed on the transition bracket 13, and the second synchronous belt 22 connects the second primary pulley 23 with the The second secondary pulley 20,

A motor 28 is installed on the workpiece picking system 17, the output of the motor 28 is connected to a gear 27, and the rack 26 matched with the gear 27 is installed on the terminal bracket 18,

The first linear motor mover 31 and the second linear motor mover 29 are installed on the transition bracket 13, and the linear motor stator 30 matched with the first linear motor mover 31 and the second linear motor mover 29 is installed on the main on bracket 2.

Compared with the prior art, the present invention has the following advantages:

1. The present invention has the characteristics of simple structure, large range of motion, fast work, strong bearing capacity and compact structure.

2. The linear motion drive adopts a linear motor, which has a compact structure and a fast motion speed.

3. High movement precision and good positioning precision.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the structure of the present invention after the bracket is removed.

Fig. 3 is a schematic structural diagram of the workpiece picking system of the present invention.

Fig. 4 is a schematic structural diagram of the present invention after being folded.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, a linear motor direct-driven telescopic feeding device for a stamping production line of cover parts, including a bracket 1, on which a main bracket 2 is installed. Referring to Fig. 2, primary guide rails 3 are installed on both sides of the main bracket 2, and The first-level slider 4 matched with the first-level guide rail 3 is installed on the transition bracket 13, the transition bracket 13 can slide in one direction on the main bracket 2, and the two sides of the transition bracket 13 are equipped with a second-level guide rail 8, which cooperates with the second-level guide rail 8 The secondary slider 12 is installed on the terminal bracket 18, and the terminal bracket 18 can slide in one direction on the transition bracket 13. The two sides of the terminal bracket 18 are equipped with tertiary guide rails 15, and the tertiary slider 16 matched with the tertiary guide rail 15 Installed on the workpiece pick-up system 17, the workpiece pick-up system 17 can slide in one direction on the terminal bracket 18,

The main bracket 2 is equipped with a first-level rack 7, and the first-level gear 6 meshed with it is coaxially connected with the first-level pulley 5 and is installed on the transition bracket 13, and the first-level rack 14 is installed On the terminal bracket 18, the first secondary gear 11 meshed with it is coaxially connected with the first secondary pulley 10 and is installed on the transition bracket 13, and the first synchronous belt 9 connects the first primary pulley 5 with the first secondary pulley 10. The first and second pulleys 10, when the transition bracket 13 moves relative to the main bracket 2 to the direction in which the first-stage gear 6 points to the first-stage gear 11, the first-stage gear 6 is driven by the first-stage rack 7 Rotation, the first-stage gear 6 drives the first-stage pulley 5 to rotate, and the rotation of the first-stage pulley 5 is transmitted to the first-stage pulley 10 through the first synchronous belt 9, and then drives the first-stage gear 11 rotates, and the rotation of the first-stage gear 11 drives the first-stage rack 14 and the terminal bracket 18 installed thereon to move.

The second-level rack 25 is installed on the main support 2, and the second-level gear 24 meshed with it is coaxially connected with the second-level pulley 23 and is all installed on the transition bracket 13. The second-level rack 19 Installed on the terminal bracket 18, the second secondary gear 21 meshed with it is coaxially connected with the second secondary pulley 20 and is installed on the transition bracket 13, and the second synchronous belt 22 connects the second primary pulley 23 with the The second two-stage pulley 20, when the transition bracket 13 moved relative to the main support 2 to the second-stage gear 24 directed to the direction of the second-stage gear 21, the second-stage gear 24 was moved by the second-stage rack 25 Drive the rotation, the second stage gear 24 drives the second stage pulley 23 to rotate, the rotation of the second stage pulley 23 is transmitted to the second stage pulley 20 through the second synchronous belt 22, and then drives the second stage The gear 21 rotates, and the rotation of the second-stage gear 21 drives the second-stage rack 19 and the terminal bracket 18 installed thereon to move.

The gear pulley transmission structure described in the above two paragraphs is a stroke amplification mechanism. The purpose is that when the transition bracket 13 moves a certain distance relative to the base bracket 2 , the terminal bracket 18 will move twice the distance relative to the main bracket 2 in the same direction.

Referring to Fig. 3, a motor 28 is installed on the workpiece pick-up system 17, the output of the motor 28 is connected to the gear 27, and the rack 26 matched with the gear 27 is installed on the terminal bracket 18, and the gear 27 is driven by the motor 28 to rotate, and the workpiece pick-up system 17 can be Move on the terminal bracket 18.

Referring to Fig. 4, the first linear motor mover 31 and the second linear motor mover 29 are installed on the transition bracket 13, and the linear motor stator cooperating with the first linear motor mover 31 and the second linear motor mover 29 30 is installed on the main support 2, and the two linear motor movers push the transition support 13 to move relative to the main support 2. When the first linear motor mover 31 leaves the linear motor stator 30, the second linear motor mover 29 and the linear The motor stator 30 cooperates to push the transition bracket 13 , and when the second linear motor mover 29 leaves the linear motor stator 30 , the first linear motor mover 31 and the linear motor stator 30 cooperate to push the transition bracket 13 .

Working principle of the present invention is:

The present invention is installed between two adjacent presses in the multi-station press system. In the initial working state, the equipment is in the retracted state as shown in Figure 4. The wire motor mover 31 drives the transition bracket 13 to move to the press of one station forward, and the displacement of the transition bracket 13 is transmitted to the terminal bracket 18 through the gear and pulley stroke amplification system, so that the terminal bracket 18 moves twice as long. At the same time, the motor 28 Rotate to drive the workpiece pick-up system 17 to move to one end of the terminal support 17 in the same direction, when moving to the top of the workpiece to be picked up. The first linear motor mover 31 and the motor 28 stop moving, the adjustable sucker on the workpiece picking system 17 touches the workpiece, sucks the workpiece, the sucker lifts the workpiece away from the mold, the first linear motor mover 31 and The motor 28 moves to retract the workpiece picking system to the state shown in Figure 4. After the next press is ready, the second linear motor mover 29 drives the transition bracket 13 to move to the next press. The displacement of the transition bracket 13 is transmitted to the terminal bracket 18 through the gear and pulley stroke amplification system, so that the terminal bracket 18 moves twice as long. At the same time, the motor 28 rotates, driving the workpiece picking system 17 to move to the other end of the terminal bracket 18 in the same direction , when the workpiece picking system 17 installed on the terminal bracket 18 moves above the mould, the second linear motor mover 29 and the motor 28 stop moving, the adjustable suction cup on the workpiece picking system 17 releases the workpiece, and the workpiece is placed between the mold Above, the second linear motor mover 29 and the motor 28 drive the workpiece pick-up device 17 back to the state shown in Figure 4, waiting for the next feeding.

Claims (1)

1. the straight drive retractable pay-off of the linear electric motors of a cladding element punching product line, comprise support (1), it is characterized in that: main support (2) is installed on support (1), main support (2) both sides are equipped with one-level guide rail (3), the one-level slide block (4) coordinated with one-level guide rail (3) is arranged on transition bracket (13), the both sides of transition bracket (13) are equipped with secondary guide rail (8), the secondary slide block (12) coordinated with secondary guide rail (8) is arranged on terminal support (18), terminal support (18) both sides are equipped with three grades of guide rails (15), the three grades of slide blocks (16) that coordinate with three grades of guide rails (15) are arranged on workpiece picking up system (17),

The first one-level tooth bar (7) is housed on main support (2), coaxially be connected with the first one-level belt wheel (5) and all be arranged on transition bracket (13) with the first one-level gear (6) of its engagement, the first secondary tooth bar (14) is arranged on terminal support (18), coaxially be connected with the first secondary belt wheel (10) and all be arranged on transition bracket (13) with first secondary gear (11) of its engagement, the first Timing Belt (9) connects the first one-level belt wheel (5) and the first secondary belt wheel (10)

The second one-level tooth bar (25) is arranged on main support (2), coaxially be connected with the second one-level belt wheel (23) and all be arranged on transition bracket (13) with the second one-level gear (24) of its engagement, the second secondary tooth bar (19) is arranged on terminal support (18), coaxially be connected with the second secondary belt wheel (20) and all be arranged on transition bracket (13) with second secondary gear (21) of its engagement, the second Timing Belt (22) connects the second one-level belt wheel (23) and the second secondary belt wheel (20)

Motor (28) is installed on workpiece picking up system (17), and motor (28) output connects gear (27), and it is upper that the tooth bar (26) coordinated with gear (27) is arranged on terminal support (18),

The first linear motor rotor (31) and the second linear motor rotor (29) are installed on transition bracket (13), and the linear motor stator electric (30) coordinated with the first linear motor rotor (31), the second linear motor rotor (29) is arranged on main support (2).

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