KR100327540B1 - Linear transfer apparatus for manufacturing products - Google Patents

Abstract

The present invention relates to a workpiece linear feed device, the linear feed device of the present invention is a seating plate on which the workpiece is mounted, rollers installed on both ends of the seating plate, guide rods for supporting the rollers, guide rods, seating plate The fitting means provided on the lower surface of the first pulley and the first pulley receiving the driving force of the drive motor and the second pulley which is installed at a predetermined interval spaced apart in the conveying direction of the seating plate, the mating means are engaged with the fitting means for transport to Including a belt for transmitting power, and a driving force transmitted to the first pulley to the second pulley, the linear transfer device of the present invention can significantly reduce the weight and manufacturing cost of the device compared to the conventional ball screw method In addition, each conveying device can be implemented as a unit cell in the work line of the whole process, and the automation of the work line can be greatly improved. Since the precise control of the conveyance state of the workpiece is possible even during the movement of the workpiece to effect that can continuously perform the operation significantly reduces the working time of the workpiece.

Description

Linear transfer apparatus for manufacturing products

The present invention relates to a linear feeder, and more particularly, to a linear feeder for a workpiece that enables precisely maintaining a conveying state of a workpiece to a working state and enables manufacturing and installation at a low cost.

In general, in the production of a product composed of a plurality of parts, a process of assembling separately manufactured parts are required as a whole, and when high precision is required for such a process, the assembly and manufacture of the product are made using a sophisticated assembly robot or the like.

In such a workshop, a device for linearly conveying a workpiece or an assembly is used, and many conventional conveyor systems are mainly applied. Also, a desktop robot or a Cartesian coordinates robot, which can perform precise work repeatedly, is used to assemble circuit boards such as electronic products.

In particular, as shown in FIG. 1, a ball screw type linear transfer device 10 is applied to the coordinate robots to linearly move a seat plate on which a work is mounted. The ball screw linear feeder 10 has a rod-shaped screw 13 mounted on an inner surface of a square base 12 on which a drive motor 11 is mounted, and the screw 13 penetrates and screws inside. A combination of resins having balls embedded along the screw grooves 14 of (13) is mounted on the seating plate 16, and is provided separately from the base 12 to guide the movement of the seating plate 16. The guide part 15 is formed.

By the way, the ball screw type linear moving device 10 is heavy, such as LM (Linear Movement) guide, ball bush, ball screw, a plurality of metal balls, and the manufacturing precision is very high, and the parts cost is expensive components Since they are used in large quantities, there is a problem that not only increases the weight of the workpiece but also sharply increases the manufacturing cost of the device.

On the other hand, as another linear conveying device, the conveyor system uses a conveyor belt that rotates in one direction by a motor instead of the ball screw method of the above-described robot, which is more expensive to manufacture than the ball screw method. Although extremely inexpensive, a separate positioning device for position adjustment of the workpiece is required because the seating plate is not properly controlled during transport, and a shock absorber for buffering the transported workpiece must be used. Therefore, there is a problem that is not suitable for performing the work on the precision parts because the precise position control for the transport of the workpiece is not made properly.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to use a timing belt of a double-sided engagement structure driven by a servo motor to precisely move and control a workpiece at a lower manufacturing cost. To provide a transfer device.

1 is a perspective view showing a conventional workpiece linear feeder.

Figure 2 is a perspective view of a workpiece linear feed device according to the present invention.

Figure 3 is a perspective view showing the internal configuration of a workpiece linear feed device according to the present invention.

4 is a side cross-sectional view of a workpiece linear feed device according to the present invention.

5 is a view showing a power transmission configuration in the workpiece linear feed device according to the present invention.

6 is a partially cut-away perspective view showing a partially installed state of the timing belt in the workpiece linear feed device according to the present invention.

Figure 7a and b is a partial perspective view showing the engagement means provided on the seating plate is installed in the workpiece linear transfer device according to the present invention.

Figure 8 is an enlarged partial perspective view showing the configuration of the roller installed on the seating plate in the linear workpiece conveying apparatus according to the present invention and the guide rod on which the roller is mounted.

9 is a cross-sectional view of the roller installed in the workpiece linear feed device according to the present invention.

10 is a cross-sectional view showing a roller of another embodiment installed in the workpiece linear feed device according to the present invention.

(Explanation of symbols for the main parts of the drawing)

50 ... Transfer

52.

53.Timing belt

55 ... Plywood

60 ... roller

70.Guide rod

100,110,120,130 ... support member

140.Lubrication member

In order to achieve the above object, the present invention provides a seating plate on which a workpiece is mounted, rollers installed at both ends of the seating plate, a guide rod supporting the rollers, and guiding driving of the rollers, provided on a lower surface of the seating plate. A first pulley receiving the driving force of the coupling means and a driving motor and a second pulley installed to be spaced apart from each other by a predetermined distance in a conveying direction of the first pulley and the seating plate, are engaged with the seating means and transported to the seating plate. And a belt for transmitting power and transmitting a driving force transmitted to the first pulley to the second pulley, wherein the guide rod is fixed on the guide rod supporting member, and the first and second pulleys are respectively provided at both ends of the pulley supporting member. It is installed on, the lubrication member for lubricating the belt is coupled to the side of the pulley support member corresponding to the engagement means.

The outer surface of the belt is formed with an outer tooth to be engaged with the engagement means, the inner surface is formed with an inner tooth to be engaged with the teeth formed on the outer periphery of the first and second pulleys.

In addition, the engaging means is provided with a tooth formed integrally with the lower surface of the base plate to be engaged with the outer tooth formed on the outer surface of the belt, or the tooth is formed to be engaged with the outer tooth formed on the outer surface of the belt is the base It characterized in that it comprises a tooth plate coupled to the plate.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the drawings.

The workpiece linear feed device 50 according to the present invention has a rectangular housing shape 51 that forms an exterior as shown in FIG. 2, and a seating plate on which the workpiece is mounted, which is mounted on the upper side of the housing 51. 52). In addition, a timing belt 53 in which an upper tooth 53a is engaged with a fitting means provided at a lower portion of the mounting plate 52 for driving the mounting plate 52, and a driving motor for driving the timing belt 53 ( 54) (typically, a 'Servo-Motor or a Printer-Motor') (see FIG. 3).

The fitting means formed on the lower surface of the seating plate 52 may be implemented with teeth 52a integrally formed together along the entire lower surface of the seating plate 52, as shown in FIG. 7A, and alternatively in FIG. 7B. As shown in the figure, a tooth 55a is formed on the bottom surface of the member as a separate member and provided with a toothed plate 55 having a size greater than or equal to the width of the timing belt 53, and a bolt 56 is provided on the bottom surface of the seating plate 52. Can be implemented by combining

Two rollers 60 are mounted at both ends of the seating plate 52, and guide rods 102 and 111 for supporting the rollers 60 are exposed to the upper side of the housing 51. have.

The configuration of the transfer device 50 will be described in more detail with reference to FIGS. 3, 4 and 5. First, a plurality of support members 100 for supporting respective components as an internal configuration of the housing 51 ( 110, 120, 130 are installed in combination. The support member is an aluminum profile, which has grooves in the longitudinal direction for fixing and installing the structure on the slope.

The aluminum profile (hereinafter referred to as a 'support member') applied in the present invention is first spaced apart by the width of the seating plate 52 and is installed to support the first support member 100 and the second support member 110. And the third support member 120 (wherein the third support member may be implemented by installing a plurality of) to properly maintain and secure the gap between the first support member 100 and the second support member 110. And a fourth support member 130 positioned at an intermediate portion between the first support member 100 and the second support member 120 and coupled to the third support member 120.

The configuration of the present invention described below will be described with reference to the accompanying drawings according to the installation state of each support member.

First, the first guide rods 102 and the second guide rods which are seated on the upper surfaces of the first support member 100 and the second support member 110 in the longitudinal direction of the respective support members 100 and 110 are seated. 111 is installed. Each of the guide rods 102 and 111 is intended to allow the rollers 60 provided at both ends of the seating plate 52 to be seated and supported.

Referring to this configuration in more detail, as shown in Figure 8, the first guide rod 102 is formed with a plurality of fastening holes 103 along the longitudinal direction of the guide rod 102, the first support member ( Inside the groove 101 of the 100 is a nut member 104 is provided to communicate with the fastening hole 103 formed in the guide rod 102.

Accordingly, the fastening bolt 105 (or the screw) penetrates the fastening hole 103 of the first guide rod 102 and is fastened to the nut member 104 to install the first guide rod 102. And the fastening hole 103 and the fastening bolt 105 and the nut member 104 is installed along a plurality of along the longitudinal direction of the guide rod 102 so that the fixing and support of the guide rod 102 is made. The coupling structure of the first guide rod 102 is similarly made in the second guide rod 111.

And the roller 60 is coupled by a bolt 56 is coupled to the fastening hole 52b formed on both sides of the seating plate 52, as shown in Figure 8, the roller 60 installed in the fastening hole (52b) The first bearing 63 and the second bearing 64 are installed on both sides of the roller 60 so as to be rotatable.

In addition, the shape of the roller 60 is bent to have a predetermined radius (must be formed beyond the radius of the guide rod) such that the inner surface with the guide rods 102 (111) as shown in FIG. As a fork circular groove 61, or as shown in FIG. 10 to the square groove 62 having a predetermined inclination angle such that the inner surface of the roller 60 and the outer circumference of the guide rods 102 and 111 are in line contact with each other. Can be formed.

Next, the third supporting member 120 is mounted in a vertical direction with respect to the first supporting member 100 and the second supporting member 110, and is fastened to the third supporting member 120 to be connected to the first and second supporting members 120. The fourth support member 130 positioned in the middle of the support members 100 and 110 is mounted.

The fourth support member 130 is equipped with a timing belt 53 having teeth 53a and 53b formed on both sides thereof. Both ends of the fourth support member 130 are supported to support rotation of the timing belt 53. The first pulley 132 and the second pulley 133, each of which has teeth formed on the outer circumference thereof and meshes with the teeth 53b formed on the inner surface of the timing belt 53, are respectively mounted, and the respective pulleys 132 ( Fixing brackets are mounted on side surfaces of both ends of the fourth support member 130 to support the shaft of 133. The fixing bracket first supports the first pulley 132 and supports the second fixing bracket 134 and the second pulley 133 mounted on one end of the fourth supporting member 130 to support the fourth pulley 132. 130 is provided with a third fixing bracket 135 mounted on the other end.

4 and 6 support the timing belt 53 in contact with the inner surface of the timing belt 53 between the timing belt 53 and the upper surface of the fourth support member 130, but not the timing belt ( The lubricated resin lubricating member 140 is mounted to guide the smooth driving of the 53).

In particular, the lubrication member 140 prevents excessive concentration of the work load with the timing belt 53 when the work with the heavy load is seated on the seating plate 52, and rather on the seating plate 52. The load applied is distributed to the rollers 60 at both ends of the seating plate 52 to prevent excessive driving resistance from being applied to the timing belt 53.

Therefore, the lubricating member 140 is formed of a rectangular plate body so as to have a width enough to allow the timing belt 53 to be inserted and inserted into the groove 131 of the lower fourth supporting member 130. The projection 141 is fitted to be fitted to maintain a stable installation state in the fourth support member 130.

Meanwhile, as shown in FIG. 5, one end of the fourth support member 130, that is, the portion on which the first pulley 132 is mounted, penetrates through the second fixing bracket 134 and is disposed on the shaft with the second pulley 133. The combined third pulley 136 is mounted, the lower side of the drive motor 54 is coupled by the first fixing bracket 57 is coupled to the side of the fourth support member 130. A power transmission belt 137 is installed between the rotating shaft of the drive motor 54 and the third pulley 136 to transfer the power of the drive motor 54 to the third pulley 136.

Hereinafter will be described the operating state of the workpiece linear feed device according to the present invention configured as described above.

Work piece linear transfer device 50 according to the present invention, when the work is first seated on the seating plate 52, the work is started in a state that is set in advance according to the working state for the workpiece.

In the operation of the transfer device 50 in such a working state, first, power of the driving motor 54 is transmitted through the power transmission belt 137 so that power is transferred to the first pulley 132 through the third pulley 136. When the first pulley 132 is rotated by the transmitted power, the timing belt 53 is driven.

At this time, the seating plate 52 engaged with the timing belt 53 by the operation of the timing belt 53 moves linearly along the driving direction of the timing belt 53, thereby enabling linear movement with respect to the workpiece. In this case, the seating plate 52 moved at this time is guided appropriately by the driving direction and the state by the guide rods 102 and 111 so that the accurate transfer state is maintained.

On the other hand, the workpiece linear feed device 50 according to the present invention is to perform the linear movement of the workpiece about the X axis, the feed to the Y axis and Z axis to enable separate control to the feed device (50) By implementing the device, it can be used as a rectangular coordinate robot.

This is because the seat plate 52 is in a state where the teeth 52a and 53a are engaged with each other by the timing belt 53, so that the seat plate 52 on the X axis is controlled by the drive motor 54. It moves precisely according to the set state, and the work on the work is performed such as assembly, welding, etc. on the work by the feeder to the Y axis and the shandong to the Z axis.

In addition, when the partial work on the same workpiece is entirely lined by a plurality of Cartesian coordinate robots and desktop robots, the seating plate 52 can be transported between the respective work robots. Therefore, when the partial work on the same workpiece is sequentially performed by the separate working robots, the mounting plate 52 may be transferred from the first working state to the second working state to enable continuous work.

This is because the seating plate 52 in the linear transport apparatus of the present invention is not fixed to the timing belt 53 but can be attached to and detached from the timing belt 53, and in particular, unlike the conventional conveyor system, the seating plate 53 Precise control of the working position is achieved with the feed drive without extra parts.

Therefore, it is possible to automate almost all processes such as welding, assembly, etc. in the production system in the production of a single product. Also, by mixing the existing conveyor system and work robot, each drive unit is linked by cell unit, and the workpiece is transported. Continuous work can be done to ensure faster and more precise work progress.

As described above, the configuration of the linear feeder of the present invention and the workline to which the linear feeder is applied can be implemented in more various ways and installation states according to the characteristics of the product on which the work is performed and its work characteristics. Embodiments can be said to be included in the technical idea of the present invention because it is based on the transfer device of the present invention.

Workpiece linear transfer device according to the present invention as described above can significantly reduce the weight and manufacturing cost of the device compared to the conventional ball screw method, and can also implement each transfer device as a work unit cell in the work line of the overall process This can dramatically improve the automation of the working line, and furthermore, it is possible to control the precise feed state of the workpiece, and thus, the work can be continuously performed even during the movement of the workpiece, thereby greatly reducing the working time for the workpiece.

Claims (6)

A seating plate on which the workpiece is seated, Rollers installed at both ends of the seating plate, A guide rod supporting the rollers and guiding driving of the rollers; Engaging means formed on the lower surface of the seating plate, A first pulley receiving a driving force of a driving motor and a second pulley installed to be spaced apart from each other by a predetermined distance in a conveying direction of the first pulley and the seating plate; And a belt which is detachably engaged with the fitting means to transfer power for transfer to the seating plate, and transfers a driving force transmitted to the first pulley to the second pulley. The apparatus of claim 1, wherein the guide rod is fixed on the guide rod support member, and the first and second pulleys are installed at both ends of the pulley support member, respectively. 3. The workpiece linear transport apparatus according to claim 2, wherein a lubrication member for lubricating the belt is coupled to a side surface of the pulley support member corresponding to the engagement means. According to claim 1, wherein the outer surface of the belt is formed with an outer tooth to be engaged with the engagement means, the inner surface is formed with an inner tooth to be engaged with the teeth formed on the outer periphery of the first and second pulleys. Linear feeder. According to claim 1, wherein the engagement means is a linear workpiece conveying device, characterized in that it comprises a tooth integrally formed on the lower surface of the seating plate to be engaged with the outer teeth formed on the outer surface of the belt. According to claim 1, wherein the engagement means is a linear workpiece conveying device, characterized in that the tooth is formed to be engaged with the outer teeth formed on the outer surface of the belt coupled to the seating plate.