KR20050030768A - A precised assembling machine of head lamp - Google Patents

Abstract

An accurate assembling and inspecting bar is provided to increase productivity, and to assemble parts precisely by pressing and fixing preassembled parts placed on predetermined positions with accurate position adjusting units arranged in a main plate. An accurate assembling and inspecting bar(100) is composed of a fixed supporting frame(110), positioning units(140) connected to the supporting frame to arrange and guide a work piece in the supporting frame, a main plate(180) moved into the work piece in a first direction and a second direction arranged perpendicularly to each other and installed to the supporting frame, gripping units(220,240) arranged in the main plate to grip the predetermined portion of the work piece when the main plate approaches the work piece, and accurate supporting units(330,340,360,380) arranged in the main plate to support the position of the predetermined portion of the work piece accurately in moving the main plate into the work piece.

Description

Precision assembly, inspection table {A PRECISED ASSEMBLING MACHINE OF HEAD LAMP}

The present invention relates to a precision assembly and inspection table for gripping easy to assemble each component to a precise position with respect to the work object in the assembled state, more specifically, to guide the work object to a predetermined reference position in more detail The present invention relates to a precision assembly and inspection table configured to facilitate assembly of a part by one worker by holding each part and joining each of the prefabricated parts to an accurate position for precision assembly.

In general, in the process of assembling a plurality of parts to complete a product, it is well known to use a conveyor system to complete a product through a series of work lines in which a plurality of workers assemble one part at a time. In the assembly line process using such a conventional conveyor system, there is an advantage that the operator's skill level is minimal and it is easy to produce large quantities of products of the same standard.

However, in the assembly process using the conventional conveyor system, there is a disadvantage that the space occupied for the assembly of the product is large, and because of this, the size of the workshop must be increased, and thus there is a limitation that only a large factory type is possible. In addition, there was a limit that the number of workers to work at the same time on one assembly line should increase according to the number of parts to be assembled. Therefore, there is a disadvantage in that the productivity of the conveyor system is not applied when the mass production system does not produce a certain number of products.

Moreover, such a conventional conveyor assembly line method has a limitation in that it is applied to the production process of the semi-finished assembly method. For example, the conveyor may be used for assembling semi-finished products including only parts, such as an assembly mounted in front of a vehicle in which a head lamp, a horn, a cooling fan, a hood latch, and a back beam of a vehicle are assembled. The disadvantage of employing the assembly method is that it requires a relatively large working space. In addition to the process of pre-assembling the headlamps, horns, cooling fans, hood latches, and back beams of the vehicle to the carrier frame, and precisely assembling them after the pre-assembly process, each part should be placed at the correct position. In the precision assembling process, when the metal material is not only heavy and bulky but also has different directions for assembling parts and fixing the precise assembly position is an important variable for workability, assembling while transferring to a conveyor is rather inefficient. It was.

As an alternative to such a conveyor system, a so-called "box" type assembly method has conventionally been employed. The "box" type refers to a method in which a worker directly assembles several prefabricated parts directly on the carrier frame in a predetermined work space. Even in this manner, since the operator has to fix the pre-assembled parts in various parts of the large and heavy carriers precisely at the correct position, it is inconvenient to fix the precise position and consequently the working time is relatively low. It took a long time as a disadvantage.

As such, the work of precisely mounting a plurality of prefabricated parts at various accurate positions in various directions on a relatively heavy and bulky work target is held and fixed at the correct position so as to be easily performed by one worker. Thus, there is an urgent need for precision assembly and inspection stand that enables more efficient and productive assembly work.

Accordingly, the present invention is to propose a precision assembly and inspection table having a new structure that allows a more efficient and productive precision assembly work as required by the conventional box-type assembly method as described above to be possible by one operator.

Another object of the present invention is that the precision positioning devices installed on the main plates moving along the two moving shafts press various preassembled parts of the object placed in a predetermined position to a desired assembly position, thereby allowing the operator to perform the assembly by simple assembly operation. The purpose is to provide a precision assembly and inspection table that can be configured to assemble each part precisely.

Another object of the present invention is to provide a precision assembly and inspection table configured to be easily assembled to a more accurate position by using a value measured using a gauge sensor means in the case of parts to be assembled at a particularly precise position such as a vehicle headlamp. Is to provide.

It is still another object of the present invention to provide a precision assembly / test table configured such that the precision position adjusting devices are operated by a drive actuator including an air cylinder to easily guide the precise position to bulky and relatively heavy parts. .

Still another object of the present invention is to mount the precision positioning device to one main plate, and if necessary, the main assembly can be replaced by a precision assembly and inspection table configured to enable precision assembly work even for work targets of various standards. Is to provide.

In addition, another object of the present invention is to precisely adjust and finely adjust the position of the precision positioning devices to the position mounted on the main plate as necessary to precisely assembling and precisely for a variety of work subjects slightly different specifications The purpose is to provide a precision assembly and inspection table that is capable of inspection work.

In order to achieve the above objects, the present invention provides an assembly and inspection table for gripping and precisely holding a work object in which one or more parts are preassembled. Precision assembly and inspection table is fixed support frame; Positioning means fixedly connected to the support frame to guide the work subject to be arranged at a predetermined point on the support frame; A main plate movably installed in a first direction and a second direction perpendicular to the support frame, the main plate being arranged to approach a work object disposed at a predetermined point; A holding means disposed on the main plate and holding a predetermined portion of the object when the main plate approaches the object; And precision support means disposed on the main plate to precisely support the position of another predetermined portion of the workpiece when the main plate approaches the workpiece.

Here, it further comprises a bogie for supporting the work target to be guided by the positioning means. The trolley may include: a pallet for supporting and supporting the lower and rear and upper ends of the object to be gripped by the object; And a carriage for supporting and transporting the pallet in a horizontal direction by supporting it from the bottom of the pallet.

The positioning means comprises: guiding means for guiding the position of the pallet of the trolley to be generally near a predetermined point; It comprises a position unit for lifting the pallet guided by the guide means to position the work object at a predetermined point.

The gripping means includes: an insertion support rod inserted into a first through hole formed in a predetermined portion of a workpiece to support its weight; And a clamping unit that is hooked around the second through hole after passing through the second through hole formed in the predetermined portion of the workpiece. Here, the first through hole and the second through hole are preferably elongated in a direction perpendicular to each other.

The precision support means includes: a mounting member for fixing the precision support means to the main plate such that when the main plate approaches the work object, the precision support means is disposed near the part to be supported precisely; A contact member for supporting a portion to be precisely supported on the workpiece at a predetermined precision position; And an actuator for moving the contact member to be in contact with the portion to be precisely supported and for pressurizing it to a predetermined precision position. Here, the precision support means is preferably configured to further comprise a gauge unit for confirming whether or not the portion to be precisely supported on the work position at a predetermined precision position. Furthermore, it may further include a fine adjustment means for finely changing the position with respect to the main plate.

The main plate is preferably mounted detachably to the support frame. Accordingly, when the specifications of the working object are different, it is possible to replace the other main plate with the precise positioning devices corresponding thereto.

The work object is a vehicle component assembly in which a head lamp, a hood latch and a back beam are preassembled to a carrier frame.

In principle, the precision assembly and inspection table provided in accordance with the present invention having the above-described configuration automatically presses each other so that each of the pre-assembled parts are in the correct precise position to be assembled, so that the operator can effortlessly assemble the precision easily. Assembly and inspection stand characterized by a structure that assists to do. Without the use of operator force, the precise position control is automatic and pressurized using the same power as the air cylinder, providing the advantage of easy assembly of each part in the correct position.

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

FIG. 1 shows an example of a work object 10 to be assembled in a precision assembly / test table according to a preferred embodiment of the present invention to be described in detail below. The illustrated example is a vehicle component assembly in which various components mounted on the front of the vehicle, such as headlamps 18, hood latches 14, back beams 16, and components such as cooling fans or horns The carrier assembly 10 is preassembled or fixedly mounted to the frame 12. The headlamp 18 needs to be particularly precisely assembled, since the illumination direction of the vehicle may vary depending on the assembly position of the headlamp 18. In the case of the hood latch 14, the hood covering the engine compartment of the vehicle is a bite, and a defect may occur in which the hood is not locked depending on the assembly position. In addition, the back beam is a part that serves to protect the various parts in the engine compartment from the impact from the outside while supporting the bumper of the vehicle inside the vehicle, which is a component to be fixed in a precisely precise position.

According to one embodiment of the present invention, the precision assembly and inspection table, which will be described in detail below, firmly supports and fixes the work object in the form of the assembly as a whole, and is preliminarily assembled to the work object, that is, several parts temporarily mounted at the assembly position. By using the power automatically to push the pressure to a precise position serves to help the operator to assemble firmly. It also allows the operator to easily check whether each part assembled is in good working order. Needless to say, precise assembly and inspection work is possible on the assembly and inspection table according to the present invention not only for the assembly 10 of the type shown in FIG. 1 but also for other types of assembly. Do.

The overall structure of the precision assembly and inspection table 100 according to one embodiment of the present invention is shown in Figs. FIG. 2 shows the state immediately before the operation is started in the state where the assembly 10 is placed in the initial position, and FIG. 3 shows the assembly and inspection table 100 in a form in which some devices shown in FIG. 2 are omitted. It is shown. For convenience of description, "up", "down", "before", "after", "left", and "right" indicating directions in this specification are based on FIG. 2 unless specifically indicated otherwise. That is, the main plate 180 is lowered relative to the assembly 10 shown in FIG. 2 and then horizontally advanced toward the assembly 10 again, that is, backward in the drawing, so that precise assembly work is performed, and vice versa. The main plate 180 returns to its initial position by reversing in the direction away from the assembly 10, ie, forward in the figure and then upward.

As shown, the precision assembly and inspection table 100 according to the present invention particularly supports the carrier assembly 10, which is a kind of work object, for example, a vehicle parts assembly, to which one or more parts are temporarily assembled, and then fixes each part in a precise position. It is an assembly and inspection table for making it easy to assemble each part to a precise position and to test the operation state of each part easily by pressure support. The assembly and inspection table 100 includes a support frame 110, positioning means 112, 114 and 140, a main plate 180, gripping means 220 and 240, and precision support means 220a, 320, 330, 340, 360 and 380. In addition, the control unit 130 ) And a monitor (not shown), and an auxiliary hook (not shown) for mounting various tools for assembling work, and the like. In addition, the assembly and inspection table 100 further includes a cart 120 for providing a work object such as the carrier assembly 10 to an initial position.

The support frame 110 provides a basis for fixing the precision assembly and inspection table at the work place, and at the same time, the precision supporting means, that is, the precision position adjusting devices 220a, to the carrier assembly 10 arranged at a predetermined position. It provides a reference coordinate when the main plate 180, which is mounted on the 320, 330, 340, 360, and 380, moves in two dimensions.

The support frame 110 includes a pair of vertical frames 115 and 116 serving as supporting columns as a whole and an upper frame 117 connecting the upper ends thereof to each other. The vertical frames 115 and 116 have a sufficient width and have a structure capable of sufficiently supporting the load of the entire assembly and inspection table. The size of the support frame 110 is preferably such that a worker occupies enough space to work.

The cart 120 supports the carrier assembly 10 in which various parts are assembled, and serves to transport the assembly to the position where the work can be started at the assembly and inspection table 100. Furthermore, it may serve to transport the carrier assembly 10 to a subsequent process after the precision assembly work is completed.

The structure of this bogie 120 is shown in more detail in FIGS. 5 and 6. 5 shows the bogie 120 without the carrier assembly 10, FIGS. 5 and 6 (a) are front views, and FIGS. 5 and 6 (b) are side views, FIGS. 5 and 6 6 (c) is a plan view. For simplicity, only the carrier frame 12 is shown in the carrier assembly 10 in FIG. 6. The trolley 120 may include a support member 126, 127, 128 for supporting various parts of the assembly 10, a pallet 124, and a carriage 122. The support member includes a member 126 supporting the lower end of the assembly 10, a member 127 supporting the rear surface of the assembly 10, and a member 128 supporting the upper end. The member 128 supporting the upper end may have a protrusion 128a formed to support both upper corners of the assembly 10. In this case, the upper support member 128 may be connected to the frame 129 to be configured to withstand the load of the assembly 10. These support members 126, 127, 128 are fixedly installed on the pallet 124, which is generally in the form of a flat plate.

The pallet 124 is, for example, mounted on a wheeled vehicle 122, and is fixed to the pallet 122 so that it cannot move on a plane. On the other hand, the pallet 124 can be moved upward by the lift truck 122. To this end, as shown, the protrusion 122a is formed on the upper side of the transport vehicle 122, the groove portion 122a is formed on the side of the pallet 124 corresponding to this can have a form of biting each other. When the protrusion 122a and the groove 122a are bitten together, the pallet 124 may be fixed without moving on the horizontal plane. In order to further secure this fixed state, protrusions 124b and 124c are formed at the lower end of the pallet 124 so as to be in contact with the side ends of the carriage 122, and the upper portion of the carriage 122 is the protrusions 124b and 124c. It may further form a structure to be sandwiched between. The shape of such protrusions and grooves is exemplary, and various other forms are possible in which the pallet 124 cannot be moved horizontally with respect to the transport vehicle 122.

The carrier assembly 10 is loaded on the trolley | bogie 120, and is arrange | positioned at the initial position of the assembly and test stand 100. FIG. Referring again to FIGS. 2 and 3, there are shown positioning means 112, 114, 140 for guiding the bogie 120 of the assembly / inspection table 100 so that the assembly 10 is placed at a predetermined position, ie the start or initial position. have. This positioning means may comprise a guiding means 112, 114 shown in more detail in FIG. 4 and a position unit 140 shown in more detail in FIG. 7. The guide means is a guide means for positioning the pallet 124, particularly the pallet 124, to a predetermined point, and the position unit 140 is a means for lifting the pallet 124 slightly to place it in the correct starting position. 4 is a plan view seen from the line H-H of Figure 2 shows the shape of the guide means. The guide means has a pair of guide frames 113 extending from both vertical frames 115 and 116 of the support frame 110 to form a space for the carriage 120 to be disposed therebetween. Although not shown, stop means are further formed to stop at an appropriate point when the trolley 120 arrives between the two guide frames 113. The auxiliary guide frames 112 and 114 may be further formed in the guide frame 113 to guide the position of the trolley 120 or the pallet 124 more precisely. FIG. 7 shows that the position unit 140, which is a unit for pushing up both ends of the pallet 124, is fixed to the guide frame 113. FIG. 7A is a partial front view, FIG. 7B is a side view, and FIG. 7C is a plan view. The position unit 140 includes an air cylinder 144, a movable shaft 146, and a contact member 148, and further includes a connection plate 147 connecting therewith a plurality of contact members 148. When the trolley | bogie 120 arrives at the assembly and test | inspection stand, the air cylinder 144 of the position unit 140 operates automatically or manually, and raises the pallet 124 a little from the carriage 122. This has the advantage of preventing an error from occurring in the position control operation due to various conditions such as the floor state of the working place.

When the carrier assembly 10 is disposed in the work start position by the position unit 140, the main plate 180 is lowered. As shown in detail in FIGS. 2 and 3, 9 and 10, the main plate 180 is installed to be two-dimensionally movable. That is, the main plate 180 is first lowered vertically and then horizontally advanced by the vertical moving device 150 and the horizontal moving device 170 in a direction close to the assembly 10.

Vertical movement device 150 is a device for moving the main plate 180 vertically, ie up and down side by side along the two vertical frames (115, 116) of the support frame. 3 and 10, as shown in the vertical movement apparatus 150, the driving rod 154 driven by the driving force of the air cylinder 152 is connected to the main plate 180 via the link member 156. It is connected to the driven guide 158 which is fixed to). The driven guide 158 is guided by the transfer guide 157 which is installed vertically long along the vertical frames 115 and 116 and is slidably installed. Accordingly, when the air cylinder 152 operates, the driving rod 154 moves up and down, and the movement of the driving rod 154 is transmitted to the driven guide 158 through the link member 156, and the driven guide 158 ) Moves up and down along the transfer guide 157, and as a result, the main plate 180 can move up and down with the movement of the driven guide 158.

When the main plate 180 moves up and down as the vertical moving device 150 is driven, the horizontal moving device 170 is also installed to move up and down together with the main plate 180. 3 and 9, the horizontal moving device 170 is fixed to the driven guide 158 of the vertical moving device 150 via a connecting plate 160. Therefore, as the driven guide 158 moves, it can be seen that the connection plate 160, the horizontal moving device 170, and the main plate 180 move together.

The horizontal moving device 170 moves the main plate 1800 in the forward and backward directions relative to the assembly 10 in the horizontal direction independently of the movement of the vertical moving device 150. Referring to Fig. 9 , The horizontal moving device 170 is fixed to the main plate 180 by the driving rod 174 driven by the driving force of the air cylinder 172 fixed to the connecting plate 160 via the link members 175 and 176. It is connected to the driven guide 178. The driven guide 178 is slidably installed along the transfer guide 177 which is installed horizontally long along the connecting plate 160. Accordingly, the air cylinder When the driving unit 172 is moved, the driving rod 174 is moved forward or backward horizontally, the movement of the driving rod 174 is transmitted to the driven guide 178 through the link members 175, 176, driven guide 178 Horizontally along the feed guide (177) Move, and it is possible as a result, moving the main plate (180) with the follower guide 178 to be moved forward or backward in the horizontal.

As shown in detail in FIGS. 9 and 10, the main plate 180 includes precise positioning devices for precisely pressing and supporting various parts pre-assembled with holding means 220 and 240 for holding the assembly 10 as a whole. 220a, 320, 330, 340, 360, and 380 are mounted. Such gripping means and precision positioning device are preferably fixed to a predetermined position on the main plate 180. Depending on the shape or size of the assembly 10, these fixing positions may be predetermined, and several main plates may be manufactured according to each specification, and it may be desirable to replace and install a suitable main plate as necessary.

The holding means provided on the main plate 180 serves to firmly grip the assembly 10 disposed at the work start position by the position unit 140 to support it at a predetermined position. Such gripping means may include an insertion support rod 220 and a clamping unit 240 respectively inserted into through holes 220b and 240b (see FIG. 18), which are previously formed at appropriate portions of the assembly 10. For example, as shown in FIG. 9, the insertion support rod 220 may have a shape such as a long window protruding horizontally from the central portion of the main plate 180. The insertion support rod 220 is inserted into the first through hole 220b formed in a predetermined portion of the assembly 10, for example, the central portion, as the main plate 180 moves horizontally to approach the assembly 10. Configured to support its weight.

Meanwhile, as illustrated in more detail in FIG. 8, the clamping unit 240 includes a second through hole formed at a portion of the assembly 10 once the main plate 180 is advanced toward the assembly 10. 240b) has a structure capable of hooking the assembly 10 from the rear by reversing back in its own operation. That is, the clamping unit 240 includes a rotating rod 247 such as an elongated window connected through the link member 243 to rotate by the power of the air cylinder 242. The rotating rod 247 is accommodated in the rod housing 244 fixed to the main plate 180 and rotatably mounted therein. A cam groove 246 is formed in the housing 244, and a guide protrusion 245 is formed in a corresponding portion of the rotation rod 247. The cam hook 248 is formed at the end of the rotating rod 247. Once the rotating rod 247 is inserted into the through hole 240b of the assembly 10 as the main plate 180 moves. Thereafter, when the rotating rod 247 rotates in the housing 244 according to the operation of the air cylinder 242, the guide protrusion 245 is guided along the cam groove 246, and as a result, the rotating rod 247 is moved to the main plate. To 180. Accordingly, the cam hook 248 formed at the end of the rotating rod 247 does not escape through the through hole 240b of the assembly 240. Accordingly, the assembly 10 is pressed in the opposite direction by the cam hook 248 of the clamping unit 240 while being pressed by the end side of the main plate 180 of the insertion support rod 220 is fixed in the horizontal direction. . In addition, the assembly 10 is also fixed in the vertical direction by its weight is supported by the insertion support rod 220 and the clamping unit 240.

Here, the first through hole 220b and the second through hole 240b formed in the assembly 10 are preferably elongated in a direction perpendicular to each other, as shown in FIG. 18. Accordingly, the assembly 10 may be fixed without moving from side to side about the insertion support rod 220 and the clamping unit 240. The shape of the through hole is not limited to the illustrated shape, and various various shapes and combinations are possible to have an effect of restricting left and right movement.

Thus, the precision positioning devices 220a, 320, 330, based on the assembly 10 is firmly fixed in the up, down, front, back, left, right direction by the holding means (220, 240) By 340, 360, 380, each of the prefabricated parts is adjusted. More specifically, the part firmly fixed by the holding means 220, 240 is the carrier frame of the assembly 10, and the headlamps, each of the prefabricated parts, are assembled in a temporary position with respect to the carrier frame. It is in a state. Therefore, the parts of each pre-assembled state can be precisely adjusted with respect to the frame carrier fixed by the holding means.

These precision positioning devices are fixed at predetermined positions according to the respective assembled parts, as shown in the examples shown in FIGS. 9 and 10. Such adjusters are generally mounted to the main plate such that when the main plate 180 approaches the assembly 10, the adjuster is respectively positioned near the part to be precisely supported, i.e., each of the preassembled parts. A mounting member for fixing; A contact member for contacting and pressing each preassembled part of the assembly 10 at a predetermined precision position; And an actuator for moving the contact member to be in contact with the portion to be precisely supported and for pressurizing it to a predetermined precision position. At this time, it may further include a gauge unit for measuring whether or not the precise position, and may further include a fine adjustment means for manually changing the position with respect to the main plate of the adjusting devices.

11 to 15 illustrate specific forms of such precision positioning devices. FIG. 11 shows a state of the headlamp lower pressurizing device 320, which is the precision positioning device as seen from line A and BB of FIG. 9, and FIG. 13 shows a state of the upper pressurizing device 380, and FIG. 13 shows a state of the headlamp first side pressurizing device 340, which is a precise position adjusting device as seen from the line EE of FIG. 9, and FIG. 14 shows the FF of FIG. FIG. 15 is a schematic view showing the state of the headlamp second side pressurizing device 360, which is the precision positioning device, as seen from the line, and FIG. to be.

The headlamp lower pressurization device 320 shown in FIG. 11 is a device supporting the headlamp 18 of the assembly 10 from the lower end. The pressurizing device 320 is upwardly driven by the mounting members 321, 322, and 323 fixed to the main plate 180, and the air cylinder 324 and the air cylinder 324 fixed to the mounting member. Moving movable rod 325. A contact member 326 is formed at the end of the movable rod 325 to press or support the lower end of the headlamp 18 to a predetermined precise position.

The headlamp upper pressurizing device 380 shown in FIG. 12 is a device for pressing the headlamp 18 of the assembly 10 from the upper end. Only one of the pair of pressurization devices 380 is shown in the figure. The pressurizing device 380 includes first mounting members 381, 382, and 383 and second mounting members 387 fixed to the main plate 180. The mounting members are connected to each other via a fine adjustment screw 384, which is a means for finely moving the second mounting member 387 with respect to the first mounting member 383. . That is, when the operator adjusts the fine adjustment screw (384), the screw shaft (385) connected thereto rotates and the movement guide 386 screwed therein moves along the screw shaft (385), the movement guide (386) The position of the second mounting member 387 may be finely adjusted according to the movement of the. The second mounting member is provided with a pressurizing device including an air cylinder 396 and a contact member 398 that moves downward in accordance with the driving of the air cylinder 396, so that the upper end of the head lamp 18 is predetermined. Pressurize or support to precise position. In the illustrated example, gauge units 392 and 394 are further installed on the second mounting member. The gauge units 392 and 394 are a kind of contact sensor, which automatically detects whether or not the headlamp 18 is mounted at the precise assembly position, instead of the worker's eyes, so as to determine whether to work.

The headlamp first side pressing device 340 shown in FIG. 13 is a device for pressing the headlamp 18 of the assembly 10 at the side end. The pressurizing device 340 has a similar configuration to the lower pressurizing device 320 shown in FIG. 11, except that the drawing is shown in a different direction from that of FIG. 11. The side pressurizing device 340 is left or right according to the driving of the mounting members 341 and 342 fixed to the main plate 180 and the air cylinder 344 and the air cylinder 344 fixed to the mounting member. Moving movable rod 345. A contact member 346 is formed at the end of the movable rod 345 to press or support the side of the headlamp 18 to a predetermined precise position.

The headlamp second side pressing device 360 shown in FIG. 14 is a device for pressing the headlamp 18 of the assembly 10 from the side, and is installed on the side opposite to the first side pressing device 340. This pressurizing device 360 has a configuration similar to that of the upper pressurizing device 380 shown in FIG. 12, except that the drawing is shown in a different direction from that of FIG. 12 and shows both the pair of pressing devices 360. . The pressing device 360 includes first mounting members 361 and 363 and a second mounting member 365 fixed to the main plate 180. The mounting members are connected to each other via a fine adjustment screw 364, which is a means for finely moving the second mounting member 365 with respect to the first mounting member 363. . The second mounting member is provided with a pressurizing device 373 including an air cylinder and a contact member moving downward according to the driving of the air cylinder to press the upper end of the headlamp 18 to a predetermined precise position or I support it. In the illustrated example, a gauge unit 371 is further installed on the second mounting member.

The above-described precision positioning device (320, 340, 360, 380) is to support the headlamp (18) in the upper, lower, left and right, respectively, while being placed in a precise position to be assembled automatically mechanically through the gauge unit Has a purpose.

On the other hand, the hood latch pressing device 330 shown in Figure 15 is a device for pressing the hood latch 14 of the assembly 10 from the top. The pressurizing device 330 is downwardly driven by the mounting members 331, 332, 333 fixed to the main plate 180, and the air cylinder 334 and the air cylinder 334 fixed to the mounting member. Moving movable rod 335. A contact member 337 is formed at the end of the movable rod 335 to press the hood latch 14 to a predetermined precise position.

Referring back to FIG. 2, after the assembly 10, which is a work object, is loaded on the trolley 120 and arrives at the assembly / test table 100, the position unit 140 is operated to slightly lift the pallet 124 of the trolley. The main plate 180 then descends and moves until it is positioned in front of the assembly 10. A view of the state after the movement is shown in FIG. 16. In FIG. 17, the main plate 180 described above and various gripping and adjusting devices mounted thereon are shown after approaching the assembly 10. As shown, when the central insertion support rod 220 is inserted into the first through hole 220b of the assembly 10, the stepped surface 220a is disposed on the main plate 180 side of the insertion support rod 220. Can be configured to press the back beam 16 of the assembly 10.

As such, when the precision assembly and inspection table 100 according to the embodiment of the present invention is used, the assembly 10 is transported on the cart 120, and then the main plate 180 descends and then horizontally moves. Afterwards, the precision positioning devices are pressurized for each component. Then, the operator can easily perform the task of completely fixing the respective precisely assembled position of the parts that are fixed in the precise position. In this case, the operation of the driving devices such as the respective air cylinders can be controlled by control means such as, for example, a microprocessor, which is composed of a series of programs and built in the control unit 130. Alternatively, the operation of each drive may be manually controlled by the operator through a user interface device such as a keyboard or a remote control. The operation state of each driving device of the assembly and inspection table 100 is preferably output for the operator to check through a display device such as a monitor. For example, in the case of the head lamp, the result measured by the gauge unit is output to the monitor, so that the operator can know whether or not the correct position value. If it is not the correct position value, the operator can manually adjust the position of the headlamp to move the position of the headlamp to a position where the measured value of the gauge unit becomes equal to the correct value. After such precision assembly work is completed, the lighting state of the lamp, the operation of the cooling fan, the operation of the horn and the like can be inspected.

In the above, the actuator means included in such devices and other vertical movement devices and the like have been described as air cylinders, but the power means used in this precision assembly and inspection table does not necessarily have to use only the air cylinders. For example, it will be obvious to those skilled in the art that a driving motor such as a step motor using electricity or the like may be used in whole or in part.

Precision assembly and inspection stand 100 provided in accordance with the present invention having the above-described configuration, by pressing each automatically so that each of the pre-assembled parts are assembled in the precise precise position to be assembled, the precision assembly work easily and effortlessly by the operator Assembly and inspection stand characterized by a structure that assists to do. Without the use of operator force, the precise position control is automatic and pressurized using the same power as the air cylinder, providing the advantage of easy assembly of each part in the correct position.

In the above, the present invention has been described with reference to specific embodiments shown in the drawings. It is noted that the illustrated embodiments are merely illustrative examples of features of the present invention, and do not limit the technical scope of the present invention. Within the scope of the appended claims, those skilled in the art can readily conceive of other embodiments that modify, modify, and combine the various features of the invention. Therefore, it should be pointed out that the spirit of the present invention should be interpreted as described in the claims, not by the specific embodiments described.

The present invention having the configuration as described above enables one worker to perform more efficient and highly productive precision assembly work as required by the box type assembly method.

According to the present invention, the precision positioning devices installed on the main plates moving along two moving shafts press various pre-assembled parts of the object to be placed at a predetermined position to a desired assembly position, thereby allowing the operator to press each part even by a simple assembly operation. Ensure precise assembly.

The present invention, in the case of parts to be assembled in a particularly precise position, such as a headlamp for a vehicle, it is easy to assemble to a more accurate position by using a value measured using a gauge sensor means. The present invention allows the precision positioning devices to be guided to a precise position easily for bulky and relatively heavy parts by operating by a drive actuator including an air cylinder.

According to the present invention, the precision position adjusting devices are mounted on one main plate, and thus, the main plate is replaced as necessary, so that the precision assembly operation can be performed even for a work target of various standards. In addition, the present invention, by precisely adjusting the position of the precision positioning devices to be mounted on the main plate to be more precisely adjusted as needed to enable the precise assembly work properly for a number of different work subjects slightly different specifications Has an effect.

1 is a schematic diagram showing an example of a vehicle component assembly in which a precision assembly operation is to be performed at an assembly and inspection table according to an embodiment of the present invention.

Figure 2 is a schematic diagram showing the overall appearance of the assembly and inspection table according to an embodiment of the present invention.

Figure 3 is a schematic diagram showing a partially omitted alternative structure of the assembly, inspection table according to an embodiment of the present invention.

Figure 4 is a schematic diagram showing a state seen from the cut side H-H of FIG.

Figure 5 is a schematic view showing the structure of the bogie as a part of the assembly and inspection table according to an embodiment of the present invention.

FIG. 6 is a schematic view showing a shape in which a carrier frame is disposed among work objects in the cart of FIG. 5; FIG.

Figure 7 is a schematic diagram showing the structure of the position unit of the assembly and inspection table according to an embodiment of the present invention.

8 is a schematic view showing the structure of a clamping unit for assembly and inspection table according to an embodiment of the present invention.

Figure 9 is a schematic view showing a view from above of the precision position adjusting devices installed on the main plate of the assembly and inspection table according to an embodiment of the present invention.

10 is a schematic view showing a front view of the precision positioning device installed on the main plate of the assembly and inspection table according to an embodiment of the present invention.

FIG. 11 is a schematic view showing a state of the precision positioning device viewed from the line A and B-B of FIG.

12 is a schematic view showing the state of the precision positioning device as seen from the C-C and D-D line of FIG.

FIG. 13 is a schematic view showing a state of the precision positioning device viewed from the line E-E of FIG.

14 is a schematic view showing a state of the precision positioning device seen from the F-F line of FIG.

FIG. 15 is a schematic view showing a state of the precision positioning device viewed from G of FIG.

Figure 16 is a schematic view showing the position of the precision positioning device installed on the main plate of the assembly according to an embodiment of the present invention to the work target from above.

FIG. 17 is a schematic view from above of the position of the precision positioning devices in the state of proximity to the workpiece in the position of FIG. 16; FIG.

18 is a schematic view of the assembly showing the location of the through holes.

<Brief description of symbols for the main parts of the drawings>

10: work target 12: carrier frame

14 hood latch 16: back beam

18: headlamp 100: precision adjustment assembly and inspection table

110: fixed frame 120: bogie

130: control unit 150: vertical movement unit

160: connection plate 170: horizontal moving unit

220: insertion support rod 240: clamping unit

320: lower support unit 330: hood latch adjustment unit

340: side pressure unit 360: side pressure unit

380: upper pressure unit

Claims (11)

As an assembly / inspection table 100 for gripping and precisely assembling the work object 10 in which one or more parts are temporarily assembled: A fixed support frame 110; Positioning means (112, 114, 140) fixedly connected to the support frame to guide the work object (10) to be arranged at a predetermined point on the support frame; A main plate 180 installed to be movable in a first direction and a second direction perpendicular to the support frame, the main plate being disposed to approach the work target disposed at the predetermined point; Gripping means (220,240) disposed on the main plate to grip a predetermined portion of the workpiece when the main plate approaches the workpiece; And A precision supporting means (220a; 320, 340, 360, 380; 330) disposed on the main plate to precisely support the position of another predetermined portion of the workpiece when the main plate approaches the precision workpiece. Precision assembly and inspection stand characterized by the above-mentioned. The precision assembly and inspection table according to claim 1, further comprising a bogie (120) for supporting the workpiece (10) to be guided by the positioning means. The vehicle of claim 2 wherein the balance 120 is: A support member (126, 127, 128) for supporting a lower end, a rear end and an upper end of the work target (10) is formed to hold and support the work target (124); Supporting the lower portion of the pallet 124 to transport the pallet (124) for transporting the pallet 124 fixed in the horizontal direction Precision assembly, inspection stand to be configured to include. The method of claim 3 wherein said positioning means is: Guide means (112, 113, 114) for guiding the position of said pallet (124) of said trolley (120) to be substantially near said predetermined point; Position unit 140 for lifting the pallet 124 guided by the guide means to position the workpiece 10 at the predetermined point. Precision assembly, inspection stand to be configured to include. The method of claim 1, wherein the holding means (220, 240) is: An insertion support rod (220) configured to be inserted into a first through hole (220b) formed in a predetermined portion of the workpiece (10) to support its weight; After penetrating through the second through hole 240b formed in the predetermined portion of the workpiece 10 and reversing, the clamping unit 240 hooked around the second through hole is opened. Precision assembly, inspection stand to be configured to include. The precision assembly and inspection table according to claim 5, wherein the first through hole and the second through hole are generally elongated in a direction perpendicular to each other. The method of claim 1, wherein the precision support means: A mounting member for fixing the precision support means to the main plate such that when the main plate 180 approaches the work object 10, the precision support means is disposed near a portion to be precisely supported by the work object; ; A contact member for supporting a portion to be precisely supported of the workpiece at a predetermined precision position; And And an actuator for moving the contact member in contact with the portion to be precisely supported and for pressurizing it to the predetermined precision position. The precision assembly and inspection table according to claim 7, wherein the precision support means further comprises a gauge unit for measuring whether a portion to be precisely supported by the work object is disposed at the predetermined precision position. The precision assembly and inspection table according to claim 7, wherein the precision support means further comprises fine adjustment means capable of finely changing the position with respect to the main plate. The precision assembly and inspection table according to claim 1, wherein the main plate (180) is detachably mounted. The precision assembly and inspection table according to claim 1, wherein the work object (10) is a vehicle part assembly in which a head lamp (18), a hood latch (14), and a back beam (16) are preassembled to a carrier (12) frame.