KR100234098B1 - Backup apparatus and its method for part mounter - Google Patents

Abstract

The present invention relates to a backup device and a backup method for a component mounter, comprising: a fixed stopper fixed to a frame; A movable stopper which moves up and down integrally with a backup plate to approach and separate the fixed stopper; A plurality of stop blocks mounted on the movable stopper and having different stop heights, the stop blocks selectively contacting the fixed stopper; Movable stopper driving means for moving the movable stopper such that any one selected from the plurality of stop blocks contacts the fixed stopper; Substrate thickness detection means for detecting a thickness of the substrate; And a control unit for controlling the movable stopper driving means such that the stop block can be selected according to the thickness of the substrate detected by the substrate thickness detecting means. As a result, it is possible to achieve automatic measurement and unattended operation of the substrate or the LCD cell to improve productivity, and also provide an excellent effect that it can be applied to production lines of various substrates or LCD cells.

Description

Backup device and backup method for component mounter

The present invention relates to a backup device for a component mounter and a backup method.

The component mounter is a device for mounting an electronic component on a supplied PCB board or LCD cell using an electronic component mounting header. The PCB or LCD cell moves along the rail of the conveyor device and is upwardly supported by the backup device at the corresponding position. At this time, the electronic component is mounted on the upper surface of the fixed PCB board or LCD cell. .

3 is a front view of a conventional backup device for a component mounter. As can be seen from this figure, the component mounting apparatus backup device 51 is provided below the conveyor 53, and the liftable back-up part and the vertical drive cylinder 65 for lifting this back-up part are moved up and down. It consists of a lift guide to guide. The rise of the backup unit is limited by the fixed stopper 81 and the movable stopper 41.

The backup unit is composed of a backup plate 61 arranged in parallel with the substrate 55 and a plurality of backup pins 63 mounted on the backup plate. In the upper and lower drive cylinders 65 provided below the backup plate 61, the connecting rod 77 is attached to the lower surface of the backup plate 61, whereby the backup plate 61 approaches the substrate. It may be possible.

The elevating guide portion includes a pair of upper and lower frames 71 disposed on the lower side of the backup plate 61 so as to face each other in the up and down direction, and guide rails 73 provided along the lengthwise direction of the mutual facings, respectively, and each guide. It is composed of an LM guide (75) provided to be slidable along the rail (73). The LM guide 75 is coupled to the connecting member 67 extending downward from the backup plate 61, whereby the backup plate 61 is operated by the operation of the up and down driving cylinder 65. In conjunction with the sliding of the elevating.

On the other hand, the fixed stopper 81 is provided downward on the extension rib 82 extending horizontally from the upper end of the upper and lower frames 71, and the movable stopper 41, as can be seen in Figure 4, the fixed stopper A plurality of stop blocks 43a, 43b, 43c corresponding to 81 are provided so that the fixed stopper 81 can be easily accessed. The stop blocks 43a, 43b and 43c have different thicknesses and are arranged at equal intervals along the circumferential direction on the rotary stopper, so that their heights are sequentially arranged on the movable stopper.

The movable stopper 41 is further rotatably supported by the rotary shaft rod 83 in the vertical direction. And, the rotary shaft 83 is coupled with the connecting member 67 of the elevating guide portion through the coupling member 69 in the horizontal direction, the upper end portion of the rotary operation control handle 87 of the movable stopper 41 The shaft is jointed by the universal joint 85. Thereby, the movable stopper 41 supported by the rotating shaft bar 83 is rotated, and one of the plurality of stop blocks 43a, 43b, 43c, that is, the stop block corresponding to the thickness of the substrate 55 is fixed to the stopper ( 81).

With this configuration, when the substrate 55 of the predetermined thickness on which the electronic component is to be mounted is selected, the user rotates the movable stopper 41 through the operation handle 87 to fix the stop block corresponding to the thickness of the substrate 55. Corresponds to the stopper 81. Then, when the device is operated, the substrate 55 is transferred to the stop position along the rail of the conveyor 53, and at this time, the backup plate 61 is operated by the operation of the vertical drive cylinder 65. The substrate 55 is supported upward by an upward rise from the lower side of the substrate. As a result, the substrate 55 is supported on the upper side of the rail, that is, at a predetermined stop position.

On the other hand, during this operation, the corresponding stop block on the movable stopper flowing integrally with the backup plate 61 comes into contact with the fixed stopper 81, and at this time, the driving of the up and down drive cylinder 65 is stopped. . The driving stop point of the vertical drive cylinder 65 can be adjusted by selectively setting the fixed block provided on the movable cylinder. Thus, the substrate 55, which is upwardly supported by the backup plate 61, is not equipped with components. Electronic components are mounted by the header. Thereafter, when the mounting of the electronic component is completed, the backup plate 61 is lowered to seat the substrate 55 on the rail, and thus the substrate 55 on which the electronic component is mounted is transported and discharged along the rail, On the other hand, the substrate on which the electronic component is to be mounted is supplied along the rail and supported by the backup plate 61 at the stop position.

When the electronic component is mounted on a substrate having a different thickness, the operation handle 87 can be simply rotated so that the stop block corresponding to the thickness of the substrate can be disposed so as to correspond to the fixed stopper 81. Then, the rising height of the support plate 61 is set so that the substrate is stopped at an appropriate height, that is, the component mounting position of the component mounting header. Thereby, the electronic component can be easily mounted.

By the way, in the conventional backup device for a component mounter, the thickness measurement of the substrate or the LCD cell is made by the user's neck, and the setting of the corresponding stop block is made manually by the user. Accordingly, there is a problem that not only a user's mistake can be caused by manual operation but also the efficiency of product production is lowered.

Therefore, the object of the present invention can be improved productivity by automatic measurement and unattended operation of the substrate or LCD cell in consideration of the conventional problems, and can be applied to the production line of various substrates or LCD cells. It is to provide a backup device and a backup method for a component mounter.

1 is a front view of a backup device for a component mounter according to the present invention;

2 is a flowchart illustrating a backup method of a backup apparatus according to the present invention;

3 is a front view of a conventional backup device for component mounter,

4 is a plan view of the movable stopper.

<Description of the symbols for the main parts of the drawings>

1: Backup device 3: Conveyor

5: substrate 11: backup plate

13: backup pin 15: up and down cylinder

21: up and down frame 25: LM Guide

31: distance detection sensor 41: movable stopper

43: stop block 45: fixed stopper

51: movable stopper rotary motor

According to the present invention, the object is a backup device for a component mounter having a frame, a backup plate which is mounted on the frame so as to be elevated, and supports a mounting board substrate from below, and a driving cylinder for lifting the backup plate. A fixed stopper fixed to the frame; A movable stopper which moves up and down integrally with the backup plate to approach and separate from the fixed stopper; A plurality of stop blocks mounted on the movable stopper and having different stop heights, the stop blocks selectively contacting the fixed stopper; Movable stopper driving means for moving the movable stopper such that any one selected from the plurality of stop blocks contacts the fixed stopper; Substrate thickness detection means for detecting a thickness of the substrate; And a control unit for controlling the movable stopper driving means so that the stop block can be selected according to the thickness of the substrate detected by the substrate thickness detecting means.

Wherein the movable stopper driving means rotates the movable stopper; The plurality of stop blocks is preferably configured to be arranged on the upper surface of the movable stopper at equal angle intervals in the order of height along the rotational direction of the movable stopper.

At this time, the thickness detecting means includes a distance detecting sensor installed on the conveyor for transporting the substrate, Based on the thickness of the substrate can be detected. here, Is the thickness of the substrate, Is the distance from the detection sensor to the conveyor, Indicates the distance from the detection sensor to the substrate.

And, the control unit, The amount of rotation of the movable stopper can be determined based on the equation according to FIG. here, Is the thickness of the substrate, Is the thickness of the transferred substrate Is the unit height difference of each stop block, and n represents the number of stop blocks, respectively.

On the other hand, the present invention provides a frame, a backup plate which is mounted on the frame so as to be elevated, and supports a mounting board substrate from below, a drive cylinder for raising and lowering the backup plate, and a fixed stopper fixed to the frame; And a movable stopper which is integrated with the backup plate to approach and separate the fixed stopper, and a plurality of stop blocks which are provided on the movable stopper and have different stopping heights, and which can selectively contact the fixed stopper. A backup method for a component mounter backup device comprising: a movable stopper driving means for rotating the movable stopper so that any one selected from the plurality of stop blocks contacts the fixed stopper, and detecting the thickness of the substrate. Providing a substrate thickness detecting means; Detecting a thickness of the substrate with the substrate thickness detecting means; And controlling the movable stopper driving means so that the corresponding stop block can be selected according to the detected thickness of the substrate.

The method may further include calculating a rotation amount of the movable stopper based on the thickness value of the substrate.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of a backup device for a component mounter according to the present invention. As described with reference to Fig. 3, the backup device 1 for a component mounter includes a lift guide part having a frame 21 in an up and down direction, a backup part provided to be capable of lifting up and down, and It is comprised by the up-down drive cylinder 15 which raises and lowers a backup part, The back-up part is restrict | limited by the board | substrate thickness detection part, the fixed stopper 45, and the movable stopper 41. In the upper part of this backup apparatus 1, the conveyor 3 which transfers the board | substrate 5 to which an electronic component is mounted is provided.

The backup section is composed of a backup plate 11 arranged in parallel and a plurality of backup pins 13 mounted in the standing direction on the backup plate. The backup plate 11 may be half-accessed to the substrate 5 by driving the upper and lower driving cylinders 15 installed at the lower side. In addition, the elevating guide portion includes a pair of upper and lower frames 21 disposed to guide the lifting and lowering of the backup plate 11, and guide rails 23 and guide rails 23 provided along the lengthwise direction of the mutually facing surfaces. Consists of an elem guide (25) sliding along. The backup plate 11 is integrated with the LM guide 25 through the connecting member 17 to be elevated along the guide rail 23.

On the other hand, the distance detection sensor 31 is provided in the board | substrate thickness detection part, This distance detection sensor 31 is fixedly attached and maintaining the predetermined | prescribed separation distance above the conveyor 3. The distance detection sensor 31 detects the distance to the substrate 5, and the calculation unit (not shown) includes a distance value provided as an electrical signal from the distance detection sensor 31 and a distance value to a conveyor stored in a memory. Is compared in the comparison unit to calculate the thickness of the substrate 5. Then, the calculated arrangement is made of the stop blocks among the stop blocks 43a, 43b, 43c provided on the movable stopper.

The movable stopper 41 is connected via the coupling member 19 so that the movable stopper 41 can move up and down by moving up and down of the backup plate 11, and the fixed stopper 45 is disposed up and down facing the movable stopper 41. It is fixed to the upper end of the frame 21. On the upper surface of the movable stopper 41, a plurality of stop blocks 43a, 43b, 43c as shown in Fig. 4 are fixedly attached at regular intervals along the circumferential direction, and these stop blocks 43a, 43b. , 43c) have different thicknesses and are arranged at sequential heights. Although only four stop blocks are shown in the figure, the stop blocks of a predetermined position can be fixedly attached according to the intended use.

The movable stopper 41 is also penetrated and supported by the rotary shaft rod 53 in the vertical direction, and is rotatable in the axial direction, and a movable stopper rotary motor 51 for rotating the movable stopper 41 at the lower portion thereof has a pulley ( 47) and the belt 49 are installed to enable power transmission. The movable stopper rotary motor 51 operates in response to a signal from the control unit to rotate the movable stopper 41 so that the stop block corresponding to the thickness of the substrate 5 faces the stationary stopper 45.

2 is a flowchart illustrating a backup method of a backup apparatus according to the present invention. In the backup device 1, when the substrate 5 on which the parts are to be mounted is transferred along the rail of the conveyor 3 (S2), first, the distance detection sensor 31 provided on the upper side of the conveyor 3 is connected to the substrate ( 5) detects and provides the distance to the calculation unit as an electrical signal (S3). Then, the operation unit compares the distance from the detection sensor 31 stored in the memory to the rail and the distance from the detection sensor 31 transmitted from the distance detection sensor to the substrate, and then the substrate according to the following equation (1). The thickness of (5) is calculated (S4).

,

here, Is the thickness of the substrate 5, Is the distance from the detection sensor 31 to the conveyor, Denotes the distance from the detection sensor 31 to the substrate.

When the thickness of the substrate 5 is obtained (S4), the calculated thickness of the substrate 5 is stored in a memory in the calculation unit, and based on the thickness of the transferred substrate discharged stored in the memory, Accordingly, the rotation amount of the movable stopper 41 is calculated (S5).

here, Is the thickness of the substrate 5, Is the thickness of the substrate, Is the unit height difference of each stop block, and n represents the number of stop blocks, respectively.

Hereinafter, an example of calculating the rotation amount of the movable stopper 41 in accordance with Equations 1 and 2 is demonstrated.

<Proof>

Distance between detection sensor 31 input to memory and rail 19.5 mm, the distance between the detection sensor 31 and the substrate detected through the detection sensor 31 If 20 is 20 mm, the thickness of the board | substrate 5 is calculated by 0.5 mm by Formula (1).

Then, assuming that the thickness of the transfer-discharged substrate stored in the memory is 0.3 mm, and the amount of rotation of the movable stopper 41 is obtained according to Equation 2

First, 0.5 mm-0.3 mm = 0.2 mm,

Here, 0.2 mm is a change in the thickness of the substrate. At this time, when this change is a positive value, the movable stopper 41 is rotated in the forward direction, and when it is a negative value, the movable stopper 41 is rotated in the reverse direction.

Then, this thickness change value is divided by the unit height difference of the stop blocks, where the unit height difference of each stop block is 0.1 mm,

0.2 mm ÷ 0.1 mm = 2,

You can get the value of. In this case, this value means that the previous stop block in the forward direction from the currently set stop block is the corresponding stop block to be set, and this value is multiplied by 360 ° / n (where n is the number of stop blocks). The rotation angle of the movable stopper 41 is calculated (S5).

When the amount of rotation of the movable stopper 41 is obtained (S5), the control unit transmits it to the movable stopper rotary motor 51, whereby the corresponding stop block among the stop blocks 43a, 43b, 43c on the movable stopper is fixed stopper. (45) (S6). Then, the up and down driving cylinder 15 is driven to raise the support plate 11 until the corresponding stop block of the movable stopper 41 and the fixed stopper 45 come into contact with each other (S7). In the process of raising the support plate 11, it is determined whether the corresponding stop block of the movable stopper 41 and the fixed stopper 45 are in contact (S8), and when the contact is made, the operation of the upper and lower drive cylinders 15 temporarily stops. The stopping of the support plate 11 is stopped (S9).

At this time, the substrate 5 is upwardly supported at the stop position on the rail by the backup pins 13 mounted on the support plate 11. In this state, the components of the component mounting header are backed up. The mounting is made (S10).

On the other hand, it is determined whether the electronic component is mounted (S11), and when the mounting is completed, the support plate 11 is lowered (S12), and the substrate 5 on which the electronic component is mounted is transported and discharged along the rail ( S13), a new substrate on which the electronic component is to be mounted is supplied to the stop position (S2). Then, the backup and the mounting process of the electronic component as described above is to proceed continuously.

As described above, the component mounting apparatus backup apparatus and the backup method according to the present invention can achieve the automatic measurement and unattended operation of the substrate or LCD cell to improve the productivity, and also produce a variety of substrates or LCD cells The excellent effect of being applicable to the line is provided.

Claims (6)

A backup device for a component mounter, comprising: a frame; a backup plate mounted on the frame so as to be movable up and down; and a backup plate for supporting a mounting board substrate upwardly; and a driving cylinder for lifting the backup plate up and down. A fixed stopper fixed to the frame; A movable stopper which moves up and down integrally with the backup plate to approach and separate from the fixed stopper; A plurality of stop blocks mounted on the movable stopper and having different stop heights, the stop blocks selectively contacting the fixed stopper; Movable stopper driving means for moving the movable stopper such that any one selected from the plurality of stop blocks contacts the fixed stopper; Substrate thickness detection means for detecting a thickness of the substrate; And a control unit for controlling the movable stopper driving means to select the stop block according to the thickness of the substrate detected by the substrate thickness detecting means. The method of claim 1, The movable stopper driving means rotates the movable stopper; And the plurality of stop blocks are disposed on the upper surface of the movable stopper at equal angle intervals in the order of height along the rotational direction of the movable stopper. The method of claim 2, The thickness detecting means includes a distance detecting sensor installed on the conveyor for transporting the substrate, the backup device for a component mounter, characterized in that for detecting the thickness of the substrate based on the following equation: [Equation 1] here, Is the thickness of the substrate, Is the distance from the detection sensor to the conveyor, Indicates the distance from the detection sensor to the substrate. The method of claim 3, The control unit is a backup device for a component mounter, characterized in that for determining the amount of rotation of the movable stopper based on the following equation: [Equation 2] here, Is the thickness of the substrate, Is the thickness of the transferred substrate Is the unit height difference of each stop block, and n represents the number of stop blocks, respectively. (correction) A frame, a backup plate mounted on the frame so as to be elevated, and supporting the mounting board substrate from below, a drive cylinder for lifting the backup plate up and down, a fixed stopper fixed to the frame, integral with the backup plate Backing device for component mounter having a movable stopper approaching and separating from the fixed stopper and a plurality of stop blocks provided on the movable stopper, and having a plurality of stop blocks selectively contacting the fixed stopper. In the backup method of, Providing movable stopper driving means for rotating the movable stopper such that any one selected from the plurality of stop blocks contacts the fixed stopper, and a substrate thickness detecting means for detecting a thickness of the substrate; Detecting a thickness of the substrate with the substrate thickness detecting means; Calculating a rotation amount of the movable stopper based on the thickness value of the substrate; And controlling the movable stopper driving means to select the stop block according to the detected thickness of the substrate. (delete)