CN212496172U

CN212496172U - Jig for ensuring assembly position degree of small parts by utilizing self-positioning

Info

Publication number: CN212496172U
Application number: CN202020714741.7U
Authority: CN
Inventors: 万智雄
Original assignee: Guangzhou Minshi Auto Parts Co ltd
Current assignee: Guangzhou Minshi Auto Parts Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-02-09
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a jig for ensuring the assembly position degree of small parts by utilizing self-positioning, which comprises a mounting seat and a mandrel, wherein the mounting seat is fixed on the positioning jig; the dabber sets up just can be rotatory relative the mount pad on the mount pad, the dabber has the first end that can precession support screw hole and the rotatory second end of the drive dabber of being convenient for, the free end of first end and second end all is located outside the mount pad, is equipped with first bearing between first end and the mount pad, is equipped with the second bearing between second end and the mount pad, the surface of first end is equipped with one section external screw thread. One hand of an operator holds the support, the other hand rotates the second end, so that the first end is screwed into the threaded hole of the support, and when the second end is screwed to the tail end of the external thread, the support is positioned, and the welding precision between the support and the guide rail is improved.

Description

Jig for ensuring assembly position degree of small parts by utilizing self-positioning

Technical Field

The utility model relates to a tool, especially a small-size part utilize self location to guarantee the tool of assembly position degree in the automobile parts production research field.

Background

In the automobile production, the support is fixed on the guide rail through projection spot welding, the support is generally L-shaped, and one end of the support, which does not need to be welded, is provided with a support threaded hole for connection. In the prior art, an operator places a guide rail on a welding jig, and after a support is placed at one end of the guide rail, a welding machine moves downwards to realize welding. However, the bracket is L-shaped, and the guide rail does not have a proper positioning point for positioning the bracket, so that the positioning accuracy and the welding accuracy are poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a small-size part and utilize self location to guarantee the tool of assembly position degree, improve the positioning accuracy between support and the guide rail.

According to the utility model discloses an embodiment of the first aspect provides a small-size part utilizes self to fix a position the tool of guaranteeing assembly position degree, include:

the mounting seat is fixed on the positioning jig;

the dabber sets up just can the relative mount pad rotation on the mount pad, the dabber has the first end that can precession support screw hole and the rotatory second end of the drive dabber of being convenient for, the free end of first end and second end all is located outside the mount pad, is equipped with first bearing between first end and the mount pad, is equipped with the second bearing between second end and the mount pad, the surface of first end is equipped with one section external screw thread.

According to the utility model discloses the tool of the first aspect embodiment, be equipped with the profile modeling piece on the mount pad, the profile modeling piece is equipped with the profile modeling face similar with the support outward appearance, expose after mount pad and profile modeling piece are passed to first end.

According to the utility model discloses the tool in the embodiment of the first aspect, be equipped with the mounting hole in the mount pad, the one end of mounting hole is equipped with the first cavity that is used for installing first bearing and fixes the first mounting in first cavity with first bearing, and the other end of mounting hole is equipped with the second cavity that is used for installing the second bearing and fixes the second mounting at the second cavity with the second bearing.

According to the utility model discloses the tool of first aspect embodiment, first mounting includes the end cover and is located the support ring between end cover and the first bearing.

According to the utility model discloses the tool of the first aspect embodiment, be equipped with the spring between the surface of dabber and the support ring, the one end and the end cover pressure of spring touch, the other end and the first pressure of spring touch.

According to the utility model discloses the tool of the embodiment of first aspect, the mount pad is equipped with the first fixed block that is used for the locating support outward, first fixed block is located first end below.

According to the utility model discloses the tool of the first aspect embodiment, still including fixing the second fixed block on positioning jig, the support can be followed to the second fixed block below.

According to the utility model discloses the tool of the embodiment of first aspect, the axis of dabber and horizontal direction's contained angle are 0 ~ 90.

According to the utility model discloses the tool of the first aspect embodiment, the handle is installed to the second end.

The utility model has the advantages that: the utility model discloses a setting up the rotatory dabber of mount pad relatively, operating personnel's a hand holds the support, and the other hand is held through rotatory second for first end precession support screw hole, when the rotating was terminal to the external screw thread, will realize the support location, so that improve the welding precision between support and the guide rail.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a sectional view taken along the line a-a in fig. 1.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1-2, a jig for ensuring assembly position accuracy of small parts by self-positioning comprises a mounting base 12 and a mandrel 13, wherein the mounting base 12 is fixed on the positioning jig, and the positioning jig is provided with a profiling cavity for placing a guide rail 100. When the specification is needed, the positioning jig can comprise a bottom plate and a positioning block arranged on the bottom plate, the profiling cavity is arranged on the positioning block, and the mounting seat 12 is arranged on the bottom plate through a supporting seat. Dabber 13 is installed on mount pad 12 through first bearing 20 and second bearing 21 and dabber 13 can be rotatory relatively mount pad 12, and dabber 13 has the first end 15 that can precession support screw hole and is convenient for drive the rotatory second end 11 of dabber 13, the free end of first end 15 and second end 11 all is located outside mount pad 12, is equipped with first bearing 20 between first end 15 and the mount pad 12, is equipped with second bearing 21 between second end 11 and the mount pad 12, the surface of first end 15 is equipped with one section external screw thread, handle 10 is installed to second end 11, and the operating personnel of being convenient for orders about dabber 13 rotatory.

The operating personnel places guide rail 100 on the imitative chamber earlier, through the locating piece location on the positioning jig, and one hand of operating personnel holds support 101, and the other hand is through twist grip 10, and then makes dabber 13 rotatory, and first end 15 precession support screw hole, when the screw thread was terminal in the rotating, will realize fixing a position support 101 to improve the welding precision between support 101 and the guide rail 100.

In some embodiments, in order to improve the positioning accuracy of the bracket 101, the mounting seat 12 is provided with a profile block 14, the profile block 14 is provided with a profile surface similar to the appearance of the bracket 101, and the first end 15 passes through the mounting seat 12 and the profile block 14 and is exposed. When an operator rotates the handle 10, the first end 15 is screwed into the threaded hole of the bracket, and when the outer surface of the bracket 101 is attached to the contour block 14, the rotation is stopped, and the positioning of the bracket 101 is completed, so that the welding is performed.

In some embodiments, a mounting hole is formed in the mounting seat 12, one end of the mounting hole is provided with a first cavity for mounting the first bearing 20 and a first fixing member for fixing the first bearing 20 in the first cavity, and the other end of the mounting hole is provided with a second cavity for mounting the second bearing 21 and a second fixing member for fixing the second bearing 21 in the second cavity. It should be noted that the first fixing member and the second fixing member may be end covers with holes, and the end covers are fixed on the mounting base 12 through bolts to fix the first bearing 20 and the second bearing 21 in the cavity of the mounting hole, respectively.

In some embodiments, as shown in FIG. 2, the first fixture includes an end cap 140 and a support ring 18 positioned between the end cap 140 and the first bearing 20. Wherein the first bearing 20 is secured against axial movement by the support ring 18 and the end cap 140. It should be noted that the shaped block 14 is disposed on the end cap 140, and the end cap 140 and the shaped block 14 are fixed on the mounting seat 12 by screws.

In some embodiments, a spring 19 is disposed between the outer surface of the mandrel 13 and the support ring 18, one end of the spring 19 is in compressive contact with the end cap 140, and the other end of the spring is in compressive contact with the first bearing 20. The support ring 18 and the spring 19 cooperate to prevent axial movement of the first bearing 20.

In some embodiments, a first fixing block 17 for positioning the bracket 101 is disposed outside the mounting seat 12, and the first fixing block 17 is located below the first end 15. The first fixing block 17 supports the bracket 101 so that the operator can screw the first end 15 into the bracket threaded hole.

In some embodiments, a second fixing block 16 fixed on the positioning fixture is further included, and the second fixing block 16 can support the bracket 101 from below. The first fixing block 17 and the second fixing block 16 are used to assist in supporting the bracket 101 for subsequent welding.

In some embodiments, the included angle between the axis of the mandrel 13 and the horizontal direction is 0-90 degrees. As shown in fig. 2, the axis of the mandrel 13 is at an angle of 45 ° to the horizontal for positioning an L-shaped holder 101 at an angle of 45 °. For an L-shaped bracket 101 with an included angle of 90 degrees, when the angle between the axis of the mandrel 13 and the horizontal direction is 90 degrees, the first end 15 is screwed into the threaded hole of the bracket.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. The utility model provides a small-size part utilizes self-location to guarantee tool of assembly position degree, its characterized in that includes:

the mounting seat is fixed on the positioning jig;

2. The jig for ensuring the positional accuracy of an assembly of small parts according to claim 1, wherein: the mounting seat is provided with a profiling block, the profiling block is provided with a profiling surface similar to the appearance of the support, and the first end of the profiling block penetrates through the mounting seat and the profiling block and then is exposed.

3. The jig for ensuring the positional accuracy of an assembly of small parts according to claim 1, wherein: be equipped with the mounting hole in the mount pad, the one end of mounting hole is equipped with the first cavity that is used for installing first bearing and fixes the first mounting in first cavity with first bearing, and the other end of mounting hole is equipped with the second cavity that is used for installing the second bearing and fixes the second mounting at the second cavity with the second bearing.

4. The jig for ensuring the positional accuracy of an assembly of small parts according to claim 3, wherein: the first fixture includes an end cap and a support ring between the end cap and the first bearing.

5. The jig for ensuring the assembly position degree of the small parts according to claim 4 by self-positioning is characterized in that: a spring is arranged between the outer surface of the mandrel and the support ring, one end of the spring is in pressure contact with the end cover, and the other end of the spring is in pressure contact with the first bearing.

6. The jig for ensuring the positional accuracy of an assembly of small parts according to claim 1, wherein: a first fixing block used for positioning the support is arranged outside the mounting seat, and the first fixing block is located below the first end.

7. The jig for ensuring the positional accuracy of an assembly of small parts according to claim 1, wherein: the positioning fixture is characterized by further comprising a second fixing block fixed on the positioning fixture, and the second fixing block can support the support from the lower side.

8. The jig for ensuring the positional accuracy of an assembly of small parts according to claim 1, wherein: the axis of dabber and horizontal direction's contained angle are 0 ~ 90.

9. The jig for ensuring the positional accuracy of an assembly of small parts according to claim 1, wherein: a handle is mounted at the second end.