JPH0276639A - Table device for transportational location - Google Patents

Abstract

PURPOSE:To stabilize the parts inserting quality of a printed circuit board by sliding a hook mechanism installed on a hook mounting base along an LM guide shaft in the X-axis direction, lifting and sinking by the use of a link mechanism, and thereby enhancing the locational accuracy. CONSTITUTION:Printed circuit boards 41, 42 are held on a transportational locating table 3, and a drive motive 4, LM guide shaft 6, and hook up/down line 7 are furnished, and a reference hook 1 and aux. hook 2 to hold and locate the printed circuit boards 41, 42 are mounted on a hook mounting base 9. When the mentioned hook up/down link 7 is moved in the X-axis (-) direction by a cylinder 12 and the hook mounting base 9 sunk, the whole hook slide base 8 moves in the X-axis (+) direction to return to the point of origin. When a loading device, not illustrated, carries in a new circuit board into the transportational locating table 3 and the completed circuit board 42 is carried out, the link 7 moves in the X-axis (+) direction to lift the hook mounted base 9, and a pin is inserted in the reference hole provided in the circuit board 41. An independently sliding slide rail link 13 is provided to remove the circuit board 42.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a transport positioning table device that automatically positions printed circuit boards in order to automatically and continuously insert electronic components into printed circuit boards constituting electronic component circuits. be.

BACKGROUND OF THE INVENTION A conventional conveyance positioning table will be described with reference to FIG. 8 while referring to the drawings.

The reference hook 71 holding the printed circuit board 64 is positioned at the insertion position of the electronic component according to a preprogrammed order by numerical control, and the operation is repeated until the programmed command is completed.

Regarding such a transport positioning table device, the -cycle operation will be explained using FIG.

The air cylinder 65 moves horizontally, and the feed shaft bearing 61 linked to the air cylinder 65
The signal is transmitted to a reference hook 71 directly fixed to a hook mounting plate 69 sandwiched between a lower slide roller 68 and an upper slide roller 70, which are attached to When the printed circuit board 64 is carried into the fixed position by the loading device after rotating and thrusting and stopped at the fixed position at the bottom, the air cylinder 65 moves horizontally and is transmitted to each mechanism one after another, and the reference hook 71 is moved from below. Move through the rotation stroke and return to the upper position.

Problems to be Solved by the Invention Conventionally, printed circuit board transport and positioning table devices have had the configuration and operation described above, but they have had the following problems.

(1) Hook mounting V as shown in Fig. 8 which is a conventional example.
Since the i69 is held by the lower slide roller 68 and the upper slide roller 70 in order to slide along the X axis, the hook mounting plate 69 is worn from above and below, causing play. Therefore, the reference hook 71 also has looseness and positioning cannot be performed accurately.

(2) Also, since the reference hook 71 rotates and thrusts around the feed shaft 67, when the reference hook 71 is inserted into the reference hole of the printed circuit board 64, the printed circuit board is shifted in the Y-axis e direction. By being inserted into the reference hole, the reference hole is rubbed by the reference hook 71, and the reference hole of the printed circuit board 71 is damaged.

(3) Therefore, the above-mentioned abnormal force is continuously applied to the feed shaft 67, the feed shaft 67 is warped, the dimensional accuracy of the reference hook 71 is significantly reduced, and the printed circuit board 7
The electronic component insertion position in No. 1 was also misaligned, leading to problems with poor reliability.

In view of the above-mentioned conventional problems, the present invention has been developed to enable accurate and high-speed positioning of electronic components to be inserted into printed circuit boards that constitute electronic component circuits, and to provide inexpensive transportation with high reliability and high availability. An object of the present invention is to provide a positioning table device.

Means for Solving the Problems In order to achieve the above object, the present invention has two printed circuit boards constituting an electronic component circuit held on a transport positioning table, and furthermore, the X-axis reciprocating motion is achieved by using a drive source within the transport positioning table. A standard for providing an LM guide shaft and a hook raising/lowering link part, attaching a hook mounting base so that these can move along the LM guide shaft and vertically raising/lowering, and holding and positioning a printed circuit board on this hook mounting base. Hooks and auxiliary hooks are attached, and each of these hooks moves back on the X-axis column and moves vertically up and down to determine the transport position, and slides independently to make the printed circuit board removable within the transport positioning table. The present invention is characterized in that it is configured to function as a transport positioning table device by providing a slide rail link portion.

According to the configuration of the present invention, the X-axis reciprocating motion is achieved by providing a drive source, an LM guide shaft, and a hook raising/lowering link part in the transport positioning table, and sliding movement and hook raising/lowering along this LM guide shaft. By providing a reference hook and auxiliary hook for insertion positioning on the hook mounting base so that it can be vertically raised and lowered by the link, the entire mechanism of the transport positioning table device is free from wear, play, and warping due to abnormal force. Accurate positioning is possible.

Further, the reference hook and the auxiliary hook are inserted vertically into the reference hole of the printed circuit board in order to rise or fall vertically, thereby making it possible to securely hold the printed I-board. Furthermore, the ability to easily create the above conditions has the advantage that electronic components can be inserted into printed circuit boards accurately at high speed.

EXAMPLE Below, an example of the present invention will be explained using FIGS. 1 to 7. In FIG. 0, 1 is a reference hook, 2 is an auxiliary hook, and 4 and 5 are each hook 1.2 that reciprocates along the X axis. The DC servo model and ball screw that constitute the drive source, 6 each hook,
1.2 is the LM guide shaft that slides on the X axis, 7 is each hook 1. 2 vertically raising and lowering the hook
Descending link part, 8 is a hook slide base that incorporates a part of the LM guide shaft 6, 9 is a hook mounting base that fixes each hook 1.2 to one end and the other end, 10 is a vertical sliding movement of the hook mounting base 9 LM shaft, 11 is a pole screw nut holder that moves according to the numerical command of the drive source 4.5, 12 is an air cylinder that operates the hook raising/lowering link part 7, and 13 is each printed circuit board 41, 42 that can be manually removed. This is the slide rail link part that is meant to be used. The reference hook 1 above is printed circuit board 41.42
The auxiliary hook 2 supports the reference hook l. In addition, 21 is a photocoupler that detects the rise and fall of each hook 1.2;
22 is a hook up/down detection shutter, 23 is a cam groove 25a
The roller shaft 25 that holds the bearing 24 that moves the cam groove 25a has the above-mentioned cam groove 25a, and moves horizontally to each hook l.

2 is a hook lifting/lowering cam that raises and lowers the hook lifting/lowering cam 25, 26 is a free joint that connects the hook lifting/lowering cam 25 and the air cylinder 12, and 27 is the air cylinder 12.
28 is a photocoupler 21
29 is a miniature LM guide that helps the horizontal movement of the hook up/down cam 25, 31
32 is a linear ball bearing that helps the vertical movement of the hook mounting base 9; 32 is a LM shaft stop plate 33 that fixes the LMM shaft 0; 50 is a guide rail that guides each printed circuit board 41.42;
Slide guide rail that slides when removing the
1 is a slide ball bearing that helps the horizontal movement of the rail shaft 55, 52 is a rail shaft guide that stops the rail shaft 55, and 53 is a slide guide rail 50.
54 is a stopper for fixing each printed circuit board 4 in a fixed position.
1. A guide plate that guides the bottom of 42, 56 a coil spring that returns the slide guide rail 50 to its home position, 57 a washer that stops the coil spring 56, 58 a C-shaped retaining ring that fixes the linear ball bearing, 39.4
0 is a printed circuit board.

Next, the operation based on this configuration will be explained.

As shown in FIG. 1, each hook 1.2 in one transport positioning table 3 can hold two printed circuit boards 41, 42 in a sequential manner. The movement of each hook 1.2 and the hook attachment base 8 is performed according to a preprogrammed order under numerical control of the drive source 4.5, and the insertion position of the electronic component is determined. As shown in FIG. 5, each hook 1.2 holding the printed circuit board 41, 42 moves in the X-axis e direction to the unloading position, and the insertion positioning cycle is completed. At that time, the new printed circuit board 40 is already waiting in the front station 43. Hook lifting/lowering link part 7 in Figure 1 is xm
When the hook mounting base 9 and each hook 1.2, which are moved in the e direction and are interlocked therewith, are vertically lowered, the entire hook slide base 8 moves in the X-axis direction,
Return to the origin position.

At this time, as shown in FIG. 6, the printed circuit board 40 is loaded into the transport positioning table 3 from the front station 43 by the loading device 44, and at the same time, the completed printed circuit board 42 inside the transport positioning table 3 is transported to the rear station 45. When this is completed, the hook lifting/lowering cam 25 linked to the air cylinder 12 moves in the direction of the X axis as shown in FIGS. 2 and 3, and the hook mounting base 9 and each hook 1.2 vertically rises and the bottle is inserted into the reference hole of the printed circuit board 41.

If you want to remove the printed circuit boards 41 and 42 from inside the transport positioning table 3 shown in FIG. , the slide guide rail 50 is returned to its normal position by the coil spring 56.

According to this configuration, by disposing the hook mounting base 9 and the mechanism of each hook 1, 2 on the upper part of the hook slide base 8, the X-axis reciprocating movement slides along the LM guide shaft 6, thereby reducing wear. It also has a structure that prevents breakdowns. Furthermore, the hook mounting base 9 and each hook 1 are
2 rises and falls vertically, so that it can be accurately inserted and held in the reference hole of the printed circuit board 41, 42, improving insertion positioning accuracy. Furthermore, since the transport positioning table 3 has the function of the slide rail link section 13, the printed circuit boards 41 and 42 can be easily removed.

Such a transport positioning table 3 is highly reliable and suitable for automated line organization.

As shown in FIG. 7, when the loading device 44 returns, the hooks 1 and 2 into which the printed circuit boards 40 and 41 are inserted and held.
starts moving in the X-axis θ direction from the origin position, and one cycle is completed. The above operation is repeated.

Effect of the invention According to the present invention as described above, the following effects can be obtained.

(1) The hook mounting base and each hook mechanism are arranged on the top of the hook slide base, and the LM guide axis is provided at the bottom of the hook slide base, so that the X-axis reciprocating movement slides along the LM guide axis. do. Therefore, high-speed X-axis reciprocating motion is possible without wear or failure of the mechanism itself.

(2) Since the hook mounting base, reference hook, and auxiliary hook vertically rise and fall by moving the hook raising/lowering link portion along the X axis, each hook can be accurately inserted and held in the reference hole of the printed circuit board.

Therefore, the positioning accuracy for automatically inserting electronic components is improved, and the quality of component insertion into printed circuit boards is stabilized.

(3) If the above conditions can be easily met, the conveyance positioning table has high reliability and a reasonable conveyance positioning table with a long service life. Therefore, an automated line system with high performance, high efficiency, and high quality is possible.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of a transport positioning table device according to an embodiment of the present invention, and FIG.
FIG. 3 is a front view of the main parts related to the descending link part, FIG. 3 is a sectional view of the main parts related to the hook ascending/descending link part in Fig. 1 and the 5M shaft, and FIG. 4 is a front view of the relevant parts of the slide rail link part in Fig. The side view of the section, Figures 5, 6, and 7 are for loading positioning,
FIG. 8 is a plan view for explaining the carrying-in operation, and is a cross-sectional view of relevant main parts of a conventional conveying and positioning device. 1...Reference hook, 2...Auxiliary hook, 3...Transportation positioning table, 4...
・DC servo model, 5...Ball screw, 6
...LM guide shaft, 7...Hook ascending/descending link section, 8...Hook slide base, 9...Hook mounting base, 10.・・・・・・
5M shaft, 11...Pole screw nut holder, 12...Air cylinder, 13...
...Slide rail link part, 41.42...
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Claims (2)

[Claims] (1) A drive source, an LM guide shaft, and a hook up/down link are provided in the transport positioning table, and a hook mounting base is attached so as to be movable along the LM guide shaft and to be able to rise and fall. A transport positioning table device equipped with a reference hook and an auxiliary hook to hold and position printed circuit boards. (2) The transport positioning table device according to claim 1, wherein a part of the transport positioning table is provided with a guide rail, and the guide rail is configured to slide independently.