JPH0121710Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a component positioning device for mixed flow assembly that positions components when assembling multiple types of base components and attached components.

(Prior art) Generally, in the automobile parts assembly process, etc.
A so-called mixed flow assembly method is adopted in which multiple types of base parts are placed on pallets and flowed through one assembly line, and the base parts and attached parts corresponding to the types are assembled at each assembly station on the line. There is.

However, when the items to be assembled are multiple types of base parts and mounting parts that have different mounting angles based on their axis, and when such a mixed assembly method is adopted, conventionally, the base parts The positioning of the parts is performed using a positioning jig provided on the pallet, but the positioning of the parts to be mounted relies on the skill of the operator for the following reasons. In other words, when a positioning jig for the mounted part is provided on a pallet, for example, a positioning pin for abutting the side of the part, similar to the positioning jig for the base part, the assembly angle of the mounted part with the base part is different. Since each type is different, it is necessary to provide as many positioning pins as the number of types of parts to be mounted, that is, the number of types of base parts. It is necessary to check whether the base part and the mounted part are compatible, which makes the positioning work rather troublesome, and depending on the arrangement of the positioning pins, the assembly of the base part and the mounted part itself may be difficult. This is because there is a problem in which something other than the corresponding positioning pin causes trouble.

For this reason, conventional assembling of multiple types of base parts and attached parts not only requires skill, but also requires time and effort, resulting in poor workability and low assembly accuracy.

(Purpose of the invention) In view of the above, the purpose of the invention is to provide a jig base with a plurality of positioning pins for positioning each component in correspondence with a plurality of types of mounted parts. When assembling a part and a mounted part, at least by eliminating positioning pins that are unnecessary and obstructive to the assembly of a specific part from the assembly area, the corresponding positioning pins can be used to assemble the mounted part. The object is to enable easy and accurate positioning.

(Structure of the invention) In order to achieve the above object, the structure of the invention is such that when assembling multiple types of base parts and attached parts having different assembly angles with respect to the axis of these base parts, A component positioning device for mixed flow assembly that positions components in a mixed flow assembly includes a jig base, a positioning jig provided on the jig base for positioning multiple types of base components, and a positioning jig provided on the jig base, each mounted on the jig base. A plurality of positioning pins arranged corresponding to the parts to be mounted, at least one of which is provided so as to be retractable, and for positioning each side part of the plurality of types of parts to be mounted, and the positioning pins that can be retracted and retracted. and a spring that biases the locating pin in the projecting direction, and the at least one locating pin biased by the spring has a base component on the jig base that corresponds to the mounted component that is positioned using the other locating pin. A detection pin is provided that comes into contact with this base component when it is positioned and placed using a positioning jig, and the positioning pin that is unnecessary for assembly is pushed down by the base component that is necessary for assembly via the detection pin. It is designed to make you feel immersed.

As a result, when assembling the base part and the mounted part on the jig base, the locating pins that are unnecessary for positioning the mounted part are pushed down by the base part due to the inevitable mounting position of the base part. The parts to be mounted are positioned by the corresponding positioning pins.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIGS. 1 to 4 show a component positioning device A according to an embodiment of the present invention, and this component positioning device A can handle two types of knuckle arms b ₁ and c as suspension components of an automobile in one assembly line. This is used for positioning the dust covers b ₂ and c ₂ when assembling the dust covers b ₂ and c 2 . In addition, the base part is Natsukuru arm b ₁ ,
c ₁ and the dust covers b ₂ and c ₂ which are the attached parts have different shapes depending on the type, and the angles at which the dust covers b ₂ and c ₂ are assembled to the knuckle arms b ₁ and c ₁ are also different. In the following explanation, the knuckle arm b ₁ and dust cover b ₂ of the type shown in Fig. 1 will be referred to as the B type, and the knuckle arm c ₁ and dust cover c ₂ of the type shown in Fig. 2 will be referred to as the C type. distinguish.

In FIGS. 1 to 3, reference numeral 1 denotes a jig pallet, and this jig pallet 1 has the function of a transport platform on which the knuckle arms b ₁ and c ₁ are placed and transported on the assembly line. Each of the above assembly stations functions as a work table when assembling the nutcle arms b ₁ , c ₁ and attached parts such as the dust covers b ₂ , c ₂ . Although other suspension parts are placed on the jig pallet 1, only the parts on which the knuckle arms _b1 and _c1 are placed are shown in the figure.

Reference numeral 2 denotes a cylindrical support stand provided on the jig pallet 1, and the upper end of the support stand 2 fits into the central boss portions b ₁₁ , c ₁₁ of the knuckle arms b ₁ , c ₁ . , the knuckle arms b ₁ and c ₁ are mounted and supported in a stable state. Further, reference numeral 3 denotes a positioning jig provided at a predetermined distance away from the installation site of the support stand 2 on the jig pallet 1,
A trapezoidal positioning groove 3a that opens upward is formed in the upper part of the positioning jig 3.
On the other hand, the knuckle arms b ₁ , c ₁ are positioned by engaging one extension part b ₁₂ , c ₁₂ of each type of knuckle arms b ₁ , c ₁ placed on the support base 2. It's getting old.

Furthermore, 4 is the support stand 2 on the jig pallet 1.
and a storage box provided in the vicinity of the positioning jig 3, at the top of the storage box 4, as shown in FIG. Inside is a rod-shaped first
A sliding member 5 and a second sliding member 6 having a flat, substantially rectangular parallelepiped shape.
are fitted and housed so that they are in contact with each other and can be slid in the vertical direction. On the upper surface of the first sliding member 5, a first positioning pin 7 for positioning the B-type dust cover _b2 is attached as the first sliding member 5 slides up and down in the storage section 4a. While the first sliding member 5 is erected so as to be able to come out and go out from the housing part 4a, an insertion hole (not shown) is formed in the lower surface of the first sliding member 5, and the lower end of the first sliding member 5 is inserted into the bottom surface of the housing part 4a. A spring that comes into contact with is inserted, and the spring urges the first positioning pin 7 in the projecting direction via the first sliding member 5.

Further, on the upper surface of the second sliding member 6, a second positioning pin 8 for positioning the C-type dust cover _c2 is placed on one end in the longitudinal direction, and a second positioning pin 8 is placed on the support stand 2 on the other end. Detection pins 9 for detecting the types of knuckle arms b ₁ and c ₁ are connected to the second
The second sliding member 6 is erected so that it can move in and out of the housing part 4a integrally as it slides up and down within the housing part 4a. Insertion holes 10, 10 are formed at both ends, and springs 11, 11 whose lower ends abut against the bottom surface of the storage section 4a are inserted into the respective insertion holes 10, 10. The second positioning pin 8 via the sliding member 6
And the detection pin 9 is biased in the protrusion direction.

The first positioning pin 7 is in a protruding state when assembling the B type knuckle arm b ₁ and the dust cover b ₂ , and
The dust cover _b2 is positioned by contact with the peripheral surface of _b2 , while the C type knuckle arm _c1
The positioning jig 3 is placed on the support stand 2 on the jig pallet 1.
When positioned and placed by the knuckle arm c 1 , the knuckle arm c ₁ is pushed down and recessed by contact with one extension part c ₁₃ . In addition, the second positioning pin 8 and the detection pin 9
Includes C type Natsukuru Arm C ₁ and dust cover
When assembling the dust cover c ₂ , they are in a protruding state, and the second positioning pin 8 positions the dust cover c ₂ by contacting the peripheral surface of the dust cover c ₂ , while the B type knuckle arm b ₁ is When the tool is positioned and placed on the support stand 2 on the tool pallet 1 by the positioning jig 3, the detection pin 9 comes into contact with one extension part _b13 of this knuckle arm _b1 , and together with the detection pin 9, the second detection pin 9 The positioning pins 8 are arranged so that they are pushed down and recessed together.

Next, to explain the effects of the above embodiment, when assembling the B type knuckle arm b ₁ and dust cover b ₂ on the jig pallet 1 (corresponding to FIGS. 1 and 3), When the knuckle arm b ₁ is positioned on the support base 2 with the positioning jig 3 positioned, one extension b ₁₃ of the knuckle arm b ₁ comes into contact with the detection pin 9, and the knuckle arm b ₁ detects the The pin 9 and the second positioning pin 8 are pushed down against the biasing force of the springs 11, 11 and retracted into the storage section 4a of the storage box 4. As a result, when positioning the dust cover b ₂ as a member to be attached to the knuckle arm b ₁ , only the first positioning pin 7 corresponding to the dust cover b ₂ of the two positioning pins 7 and 8 is attached to the storage box 4 . Since the dust cover b2 protrudes into the upper assembly area, it is not necessary to sort out the positioning pins 7 and 8, and the dust cover _b2 can be removed by simply bringing the peripheral surface of the dust cover b2 into contact with the first positioning pin 7. ₂ can be easily and accurately positioned.

On the other hand, when assembling the C-type knuckle arm c ₁ and the dust cover c ₂ on the jig pallet 1 (corresponding to Fig. 2), the knuckle arm c ₁ is positioned using the positioning jig 3 and then the support stand 2 is assembled. When placed on top, this Natsukuru Arm C ₁
One of the extending portions c ₁₃ and the first positioning pin 7 come into contact with each other, and the first positioning pin 7 is pushed down by the knuckle arm c ₁ against the biasing force of the spring, so that the first positioning pin 7 is pushed down into the storage part 4a of the storage box 4. immerse yourself in Therefore, when positioning the dust cover c ₂ , only the second positioning pin 8 corresponding to the dust cover c ₂ out of the two positioning pins 7 and 8 protrudes into the assembly area above the storage box 4 . Therefore, it is possible to easily position the dust cover c ₂ by simply bringing the peripheral surface of the dust cover c ₂ into contact with the second positioning pin 8 without having to sort the positioning pins 7 and 8. Can be done accurately.

Note that the first positioning pin 7 used for positioning the B-type dust cover b ₂ does not substantially interfere with the C-type dust cover c ₂ .
If it is set in an area that does not come into contact with the type of knuckle arm _c1 , it does not need to be retractable.

In this way, when assembling two types of knuckle arms b ₁ , c ₁ and dust covers b ₂ , c ₂ using the component positioning device A of the present invention, the positioning tool is used regardless of the type of assembled components. Similar to the positioning of the knuckle arms b ₁ and c ₁ using the tool 3, the positioning of the dust covers b ₂ and c ₂ can be easily and accurately performed using the positioning pins 7 and 8. Since the assembly itself does not cause any trouble, the assembly work becomes simple and workability can be improved, and the assembly can be performed uniformly, thereby improving its accuracy.

Moreover, the component positioning device A itself does not require a drive mechanism, and is a simple device that simply provides the positioning jig 3, positioning pins 7 and 8, detection pin 9, etc. on the jig pallet 1. Since it is a simple method, it is very advantageous in terms of implementation, such as being able to be implemented at low cost.

Note that the present invention is not limited to the above-mentioned embodiments, but includes various other modifications. For example, in the above embodiment, the case was applied to the positioning of parts when assembling two types of knuckle arms b ₁ and c ₁ and dust covers b ₂ and c ₂ , but the present invention Of course, the present invention can also be applied to positioning parts when assembling them, and the number of types of parts is not limited to two, but can also be applied to three or more types. Further, in the above embodiment, the present invention was applied to a jig pallet, but it can also be applied to a stationary assembly table.

(Effect of the invention) Therefore, according to the component positioning device for mixed flow assembly of the present invention, when assembling the base component and the mounted component on the jig base, each of the multiple types of mounted components is Even though there is a positioning pin that abuts on the side, the practically unnecessary positioning pin, which is easy to make a mistake when assembling a specific mounted part, is recessed with the positioning operation of the base part to eliminate the cause of assembly errors. Of course, the positioning of the mounted part using this positioning pin is
As with the case of positioning the base parts using a positioning jig, it can be done easily and accurately, and the assembly of the parts is not hindered by other positioning pins, making the assembly work simpler and easier. In addition to being able to improve sexual performance,
Assembling accuracy can be improved. Moreover,
The structure of the apparatus itself is simple, simply providing a positioning jig, positioning pins, detection pins, etc. on a jig base, so it is very advantageous in terms of implementation, such as being able to be implemented at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIGS. 1 and 2 are plan views of the assembled parts, FIG. 3 is a sectional view taken along the - line in FIG. 1, and FIG. 4 shows the main parts. FIG. A... Component positioning device, 1... Jig pallet, 3... Positioning jig, 7... First positioning pin, 8... Second positioning pin, 9... Detection pin,
11...Spring, _b1 , _c1 ...Natsukuru arm, _b2 , _c2 ...Dust cover.

Claims (1)

[Scope of utility model registration request] A component positioning device for mixed flow assembly that positions components when assembling multiple types of base components and mounted components whose assembly angles are different with respect to the axis of the base components, a jig base; provided on the jig base;
a positioning jig for positioning a plurality of types of base parts; and a positioning jig arranged on the jig base corresponding to each mounted part, at least one of which is retractably provided, and on one side of each of the plurality of types of mounted parts. It is equipped with a plurality of positioning pins for positioning each part corresponding to each part, and a spring that biases the retractable positioning pin in the projecting direction, and at least one positioning pin biased by the spring includes: A detection pin is provided that comes into contact with the base part that corresponds to the mounted part that is positioned using other positioning pins when the base part is positioned and placed on the jig base by the positioning jig. A component positioning device for mixed flow assembly, characterized in that a positioning pin unnecessary for assembly is pushed down and recessed by the base component necessary for assembly via a detection pin.