JP2005212057A - Assembling tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembling tool capable of not only allowing a held work to easily take a different attitude but also reducing manufacturing cost of an assembling line of the work. <P>SOLUTION: This assembling tool has a clamp part 1 for holding one side part of the work 2, a base part 3 for installing this clamp part 1 in a rotatable state around the axis and having a means 4 for stopping its rotation at an optional angle, a substantially circular arc-shaped guide rail 5 for slidingly holding this base part 3, and a table unit 7 for rotatably holding this guide rail 5 around the axis. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an assembling jig used for assembling a workpiece such as a vehicle engine.

The vehicle engine is manufactured by assembling various parts and the like to the engine block. Specifically, first, as a first step, the block is placed vertically on a pallet as an assembly jig, and a member such as a piston is assembled inside the block. Subsequently, as a second step, the block is sandwiched from both side surfaces, and the upper surface and the lower surface of the block are assembled. Finally, as a third step, the lower surface of the block is placed on a pallet and electric parts are assembled around the block to obtain a finished product.
Utility Model Registration No. 3091400

  Therefore, the assembly of the engine requires pallets of different types and shapes, and requires a large space for storing various pallets, and there is a problem that the pallet is very expensive.

  Furthermore, when assembling, the block must be transferred to a different pallet. Therefore, a transfer device for that purpose is required for the assembly line, and the line itself is expensive.

  The present invention has been made in consideration of the above-mentioned matters, and the purpose thereof is not only to make the held workpiece easily take a different posture, but also to reduce the manufacturing cost of the assembly line of the workpiece. It is to provide an assembly jig that can be used.

  In order to achieve the above object, an assembling jig according to the present invention includes a clamp portion that holds one side of a workpiece, and the clamp portion is attached in a state where the clamp portion is rotatable around an axis, and the rotation is performed at an arbitrary angle. A base portion having a means for stopping the base, a substantially arc-shaped guide rail that slidably holds the base portion, and a table unit that rotatably holds the guide rail about its axis. ).

  In the assembling jig according to claim 1, the work held by the clamp portion can be rotated around the axis, the work can be appropriately inclined by the guide rail, and the posture thereof can be changed. The unit can rotate the workpiece around the vertical axis.

  Therefore, it is very easy to make the work held by the assembling jig take a desired angle and posture, so that an operator who performs assembling work on the work can proceed with the work alone. In addition, the operator does not need to move during the work, and further, for example, there is no need to work with only the other hand while holding the work with one hand, and the work can always be done with both hands. It can be done safely with very little effort.

  In addition, since only one side of the work is gripped by the clamp, the other parts of the work can be exposed to the outside so that the work can be easily performed. Is easier.

  Furthermore, if the assembly jig is used, it is not necessary to transfer or lift the workpiece in the workpiece assembly line, so that a transfer device, a lifter, etc. can be omitted from the above-mentioned line, and the line can be reduced in cost. Can be formed. Also, there is no need for multiple assembly jigs for one workpiece flowing through the assembly line, and it can be handled with one assembly jig. Costs related to equipment can be minimized.

  1 to 4 show an embodiment of the present invention. First, FIG. 1 is a perspective view schematically showing the structure of an assembly jig according to one embodiment of the present invention. In this figure, 1 is a side portion of a work 2 (vehicle engine in this embodiment). It is a clamp part to hold. And this clamp part 1 is attached to the base part 3 in the state which can rotate around an axis | shaft. In addition, it is preferable that the one side part of the workpiece | work 2 hold | maintained by the clamp part 1 is a location which does not interfere with the operation | work when performing assembly | attachment operation | work with respect to the workpiece | work 2.

  The base portion 3 has a clamp lever 4 as means for stopping the rotation of the clamp portion 1 at an arbitrary angle. That is, when the clamping lever 4 is rotated in one direction, the clamping unit 1 is allowed to rotate around the axis, and when the clamping lever 4 is rotated in the other direction, the clamping unit 1 cannot rotate around the axis. It is comprised so that it may become a state.

  The base portion 3 is slidably held by a guide rail 5 having a substantially arc shape when viewed from the front. Specifically, the base 3 is moved from one end (right end in FIG. 1) to the other end (FIG. 1) by the driving force of the motor 6 (see FIGS. 2A and 2B) as a drive source. Then slide to the left end). And the guide rail 5 is comprised so that the base part 3 can be stopped in arbitrary positions.

  In this embodiment, as shown in FIG. 2 (A), when the base portion 3 is moved to one end portion of the guide rail 5, the clamp portion 2 is directed substantially in the horizontal direction, and accordingly, the workpiece 2 assumes a horizontal posture. 2B, when the base portion 3 is moved to the other end portion of the guide rail 5, the clamp portion 2 is directed substantially in the vertical direction, and accordingly, the workpiece 2 is in an inverted posture ( Or it is comprised so that it may be in the state which takes an upright posture. That is, by moving the base portion 3 on the guide rail 5, the inclination angle of the workpiece 2 can be adjusted and the posture thereof can be freely changed.

  Returning to FIG. 1, reference numeral 7 denotes a table unit for holding the guide rail 5 so as to be rotatable about a vertical axis. The table 8 is a substantially circular table 8 on which the guide rail 5 is fixed, and this table. And a pedestal portion 9 that rotatably holds the shaft 8 around a vertical axis.

  Further, as shown in FIG. 3, a plurality of (four in this embodiment) notch portions 10 provided at equal intervals on the peripheral edge of the table 8, and a locking body 11 that is locked to the notch portion 10, A reverse rotation prevention means A is configured which allows only forward rotation (counterclockwise rotation in FIG. 3) around the axis of the table 8 and prevents reverse rotation (clockwise rotation in FIG. 3).

  Specifically, in FIG. 3, reference numerals 12 and 13 denote a first arm and a second arm that pivotally support one end of each other, and the other ends of the arms 12 and 13 are rotated to a fixed position of the pedestal portion 9. It is pivotally supported. In addition, at least one of the two arms 12 and 13 (in this embodiment, the second arm 13) is biased in a direction in which the length is variable and shortens. Thus, the angle formed by the two arms 12 and 13 is configured to approach approximately 180 °. In this embodiment, both ends 15 and 16 of the second arm 13 are connected via an elastic member 14 made of a spring, for example, and the elastic member 14 is in an extended state. The locking body 11 is held at substantially the center of the first arm 12, and the locking body 11 is biased toward the inside of the table 8 by the biasing force applied to the two arms 12 and 13. ing.

  On the other hand, the plan view of the cutout portion 10 is asymmetrical, and when the table 8 is rotated forward, the locking body 11 locked to the cutout portion 10 retreats from the cutout portion 10 relatively smoothly. On the contrary, when the table 8 is to be rotated in the reverse direction, the locking body 11 locked to the notch portion 10 cannot be retreated from the notch portion 10, thereby 8 is configured to prevent reverse rotation.

  FIG. 4 is a partially transparent bottom view schematically showing the configuration of the rotation restricting means B for restricting the rotation of the table 8 at every predetermined angle (90 °). In this figure, 18 is a rotating body provided below the pedestal portion 9 shown in FIG. 1 and held by a pedestal portion 19 so as to rotate around a vertical axis in conjunction with the table 8. A plurality of stopper blocks 20 and cam followers 21 are alternately arranged at the peripheral edge of the rotating body 18 (four in this embodiment). The stopper blocks 20 and the cam followers 21 are provided at equal intervals.

  22 is a substantially L-shaped cam plate in plan view in which a stopper arm 23 for stopping the stopper block 20 and a receiving arm 24 for receiving a collision of the cam follower 21 are provided via a bent portion 25. The bent portion 25 is a frame. The portion 19 is pivotally supported at a fixed position so as to be rotatable about a vertical axis.

  26 is arranged so as to abut on the receiving arm 24, restricts the rotation of the cam plate 22 in one direction (counterclockwise in FIG. 4) due to the collision of the cam follower 21 with the receiving arm 24, and receives the receiving arm by its elasticity. A shock absorber that pushes back 24 and rotates the cam plate 22 in the other direction (clockwise in FIG. 4).

  In the rotation restricting means B configured as described above, when the table 8 shown in FIG. 3 is rotated forward (rotated counterclockwise in FIG. 3), the rotating body 18 shown in FIG. 4 is also rotated forward in the same direction (FIG. 4). Then rotate clockwise). 3 is a plan view and FIG. 4 is a bottom view, the rotation direction of the table 8 and the rotation direction of the rotating body 18 are shown in reverse.

  When the cam follower 21 arranged at the peripheral edge of the rotating body 18 collides with the receiving arm 24 as the rotating body 18 rotates forward, the cam plate 22 rotates in one direction, and the cam follower 21 rotates in the rotating direction. The stopper arm 23 comes into contact with the stopper block 20 immediately after this, so that the rotating body 18 cannot be rotated forward. Thereafter, when the cam plate 22 rotates in the other direction by pushing back the shock absorber 26 with respect to the receiving arm 24, the contact of the stopper arm 23 with the stopper block 20 is released, and the rotating body 18 can be rotated forward.

  In this embodiment, four stopper blocks 20 and four cam followers 21 are provided on the periphery of the rotating body 18, and the orientations of the rotating body 18 and the table 8 are sequentially 0 °, 90 °, 180 °, and 270 °. It is configured to be changed.

  In the assembling jig having the above-described configuration, the workpiece 2 held by the clamp portion 1 can be rotated around the axis, and the posture can be changed by appropriately tilting the workpiece 2 by the guide rail 5. Furthermore, the workpiece 2 can be rotated only in a predetermined direction by a predetermined angle around a vertical axis by the table unit 7 provided with the reverse rotation preventing means A and the rotation restricting means B.

  Therefore, it becomes very easy to make the workpiece 2 held by the assembly jig take a desired angle and posture. For example, the lower surface or side surface of the work 2 can be easily directed to the upper side where the work is easily performed. Therefore, the worker who performs the assembling work on the work 2 can proceed with the work alone. In addition, the worker does not need to move during the work, and further, for example, there is no need to work with only one hand while holding the work 2 with one hand, and always work with both hands. As a result, the work can be performed safely with very little effort.

  Further, since only one side of the work 2 is gripped by the clamp part 1, the other part of the work 2 can be in a state of being sufficiently exposed to the outside so that it can be easily operated. Assembling work on the workpiece 2 becomes easier.

  Furthermore, if the assembly jig is used, there is no need to transfer or lift the workpiece 2 in the assembly line of the workpiece 2, so that a transfer device, a lifter, etc. can be omitted from the above line. It can be formed at low cost. In addition, it is not necessary to use multiple assembly jigs for one workpiece 2 flowing through the assembly line, and one assembly jig can be used, so the assembly jig storage space can be reduced. Costs related to jigs can be minimized.

  In addition, this invention is not restricted to said embodiment, It can implement in various deformation | transformation. For example, although the motor 6 is used as a drive source for sliding the base portion 3, an air (electric) impact may be used as the drive source instead of such a configuration. The base unit 3 may be moved manually.

It is a perspective view showing roughly the composition of the assembly jig concerning one example of this invention. (A) And (B) is a front view which shows roughly the structure of an assembly jig | tool when a base part is moved to the one end part and other end part of a guide rail. It is a partially transparent top view which shows the structure of a reverse rotation prevention means roughly. It is a partially transparent bottom view which shows the structure of a rotation control means roughly.

Explanation of symbols

1 Clamp part 2 Work piece 3 Base part 4 Clamping lever 5 Guide rail 7 Table unit

Claims (1)

  A clamp part that holds one side of the workpiece, a base part that has a means for stopping the rotation at an arbitrary angle, and the base part is slidable. An assembling jig comprising: a substantially arc-shaped guide rail that is held in a table; and a table unit that holds the guide rail rotatably about its axis.

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