CN2240068Y

CN2240068Y - Quantitative adjusting pin

Info

Publication number: CN2240068Y
Application number: CN 96203801
Authority: CN
Inventors: 谢武淳
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-12
Filing date: 1996-02-12
Publication date: 1996-11-13
Anticipated expiration: 2006-02-12

Abstract

A quantitative regulation pin has a long axle part, a polygonal head part at one end of said long axle part, and the distances between each side of said polygonal head part and the axle center of long axle part are different and can be increased or decreased in equal difference mode.

Description

Quantitative adjusting pin

The utility model relates to a kind of quantitative adjusting pin, particularly relates to a kind of cubing that can be used for and locatees, and eliminate the quantitative adjusting pin of its positioning error.

At mechanical spare part manufacture view, on particularly the manufacturing of automobile spare part was produced, the check of its finished product cubing commonly used was carried out.In use, because body parts is the article in a stereoscopic three-dimensional space, therefore need earlier cubing accurately to be located, to guarantee the accuracy of its check.General cubing orientation type commonly used has two kinds, a kind of is that pin is directly squeezed in the base of cubing, and as shown in Figure 1, wherein cubing 10 has a base 12, base is provided with pin-and-hole, but supply and marketing 14 is directly squeezed into and cubing 10 is fixed on the worktable 16 and located.Another kind of cubing orientation type commonly used is to utilize three pins to come cubing is done the periphery location, as shown in Figure 2, wherein fixes three pins 18 on position selected in advance on the worktable 16, so that cubing 10 is pre-aligned on worktable 16.These two kinds of methods are some shortcoming all, the mode of directly squeezing into pin as shown in Figure 1, if the cubing location is unpunctual, the three-dimensional coordinate of for example putting between A and some B exceeds when permitting tolerance range, just must earlier pin 14 be transferred to, and basis is measured the value that is write down to the cubing base then, again process the distolateral of base, then again cubing is retracted worktable again, and the coordinate position of accurate adjustment each point, be positioned at the permission tolerance range up to the each point positional error; Perhaps can fill up the thickness sheet of various different size specifications below the cubing base, remedy its deviate, this is a quite time-consuming adjustment operation.And three points location mode as shown in Figure 2, when if certain point coordinates on the cubing exceeds the permission tolerance range, also must do reform processing or soldering work in the position of its three location pins, and this also is quite time-consuming operation, so usual way all has its inconvenience and the inefficiency part when doing accurate adjustment.

The purpose of this utility model provides a kind ofly can locate the device that accurate adjustment is used in order to auxiliary detection tool, make things convenient for the location adjustment of cubing, thus the deviate that is caused because of distortion (as welding deformation and the distortion of metal plate spare) when eliminating a small amount of sum of errors cubing trial assembly on the finished product accurate measurement.

The purpose of this utility model is to realize like this, a kind of quantitative adjusting pin promptly is provided, this adjusting pin includes a cylindric major axis portion and extends along shaft axis, a polygonal head, be combined on the end of this major axis portion, wherein this cylindric major axis portion can be plugged in the hole that is arranged on the stationary work-table, and can rotate within it, to adjust the relative position of this head, each side of this head all with this shaft axis at a distance of one section predetermined and do not wait distance, can select optimal side from this a plurality of and shaft axis at a distance of the side of different distance, matching with workpiece on the worktable merges the little deviation of supplying on the workpiece.

The advantage of the quantitative adjusting pin of the utility model is that each side of its polygonal head has different departures, thereby can a kind of extremely convenient and efficient mode, supply a small amount of deviate on the cubing, make things convenient for the location adjustment of cubing, overcome the consuming time and inconvenient defective of usual way when cubing being done the accurate adjustment location.

Below in conjunction with the accompanying drawing illustrated embodiment the quantitative adjusting pin of the utility model is described in further detail, in the accompanying drawing:

Fig. 1 is first kind of cubing orientation type schematic representation commonly used;

Fig. 2 is second kind of cubing orientation type schematic representation commonly used;

Fig. 3 is an embodiment's of the quantitative adjusting pin of the utility model a stereogram;

Fig. 4 is a kind of usage mode schematic representation of the quantitative adjusting pin of the utility model;

Fig. 5 is another embodiment's of the quantitative adjusting pin of the utility model a stereogram;

Fig. 6 decides another embodiment's of tool adjusting pin stereogram for the utility model.

With reference to Fig. 3, it illustrates an embodiment of the quantitative adjusting pin of the utility model.This quantitative adjusting pin is indicated with reference number 20 in Fig. 3, its profile is slightly like a bolt, has a columned major axis portion 22, it has a shaft axis 24, can be for inserting in the hole that is located on worktable or other the fixing reference plane (as shown in Figure 4), on an end of this major axis portion 22, be provided with a polygonal head 26, head central authorities are provided with the pin-shifting hole 25 of a tool internal thread, it is Hexagon in the embodiment shown in fig. 3, have six sides, the distance of each side and its shaft axis 24 does not all wait.Wherein, the difference of each side and shaft axis distance is arithmetic series, and is for example shown in Figure 3, and indicating respectively on six limits of this hex-shaped head has one 2 to 3 difference mark, in order to represent 24 of every side and shaft axiss apart from difference.If the side of 0-notation is decided to be with reference to side, the distance that is 24 of itself and shaft axiss is decided to be reference distance, it is defined as zero apart from the relative deviation amount, then all the other indicate with-2 to 3 the side relative distance departure with the distance of 24 of shaft axiss, will be respectively reference distance and reduce 2 departure units or add 3 departure units.

Similarly, if 1 to serve as the side of zero relative deviation amount, the side that then indicates with 2 and 3 will have positive relative deviation amount, and the side that indicates with 0 to-2 then can have negative relative deviation amount.Because in the utility model, each side of its polygonal head is required, and what calibrated is its relative deviation amount, so its can any side as the reference side, remaining each side then according to itself and the distance of shaft axis be greater than or less than reference distance and for just relative deviation or negative to deviation.

Can decide on required precision in this so-called departure unit, for example a unit can be 0.4, perhaps also can be 1 (one is 1/10th millimeters).

What will pay special attention in addition is, though the embodiment among Fig. 3 is a Hexagon, but it also can be other polygonal, for example (Ref. No. is the Octagon of 20 "); this two embodiment's usage mode and structural principle all are similar to the Hexagon embodiment shown in Fig. 3, so repeat no more for the embodiment's shown in Fig. 5 (Ref. No. be 20 ') quadrilateral or the embodiment shown in Fig. 6.In three embodiments, except the number of sides difference of its polygonal head, and indicate to some extent outside the difference, all the other each corresponding positions or part are all with identical Ref. No. representative, so that its simplification.

In the use, the usage mode of the quantitative adjusting pin 20 of the utility model and the three points location mode shown in Fig. 2 are identical.Referring to Fig. 4, wherein demonstrate the situation that the quantitative adjusting pin 20 of the utility model uses on the location of cubing 10.As shown in the figure, by pasting the quantitative adjusting pin 20 of three basic model utilitys, applying therebetween is to utilize each to sell a side of 20 to contact with a side of base 12 and reach on certain dual side-edge of the base 12 of cubing 10.During the location, each pin 20 all is to insert in the positioning hole that is located on the worktable (not shown among Fig. 4) with the major axis portion on it 22, and can rotate within it.When setting the location of base 12, if the fit tolerance when a certain side of pin 20 is fitted with the side of base does not conform to, then can comply with its tolerance value, will sell 20 and rotate, and make this sell 20 suitable distolateral being fitted on the chassis side around its shaft axis 24.Rotation by pin 20 is revised a small amount of deviate of cubing 10 to adjust the departure of its head 26, can eliminate usual way required a large amount of adjustment man-hour.

Because the permission tolerance of cubing is had nothing in common with each other, therefore the utility model is for being used conveniently, establish the hole 25 of pulling pin in adjusting pin 20 head central authorities especially, it is with being intended to, if adjusting pin 20 squeezes in the worktable, because of the tolerance fit of pin-and-hole and bearing pin 22 improper, and when producing slight drive fit, need bolt is inserted in the hole 25 of pulling pin of adjusting pin 20 heads, turn easily or pull out this adjusting pin 20, it is more convenient that the utility model is used.

In addition, because polygonal head 26 is to be the relation that face contacts with 10 of cubings by subsides, and the line that is different from the three points location mode commonly used contacts (because pin commonly used is to be cylindric fully, so it is the line contact with contacting of cubing), therefore can more firmly fix cubing 10.

Under the creation spirit that does not break away from the quantitative adjusting pin of the utility model, the various variations that the above embodiment of the utility model is done are all in the utility model claims.

Claims

1. A quantitative adjustment pin, the adjustment pin includes a cylindrical long axis extending along the axis, a polygonal head, combined with one end of the long axis, wherein the cylindrical long axis can be inserted It is placed in the hole provided on the fixed workbench and can be rotated in it to adjust the relative position of the head. It is characterized in that: each side of the head is at a predetermined distance from the axis The distances are not equal, and the most suitable side can be selected from the multiple sides with different distances from the axis line to match the workpiece on the workbench and make up for the slight deviation on the workpiece.

2. The quantitative adjustment pin according to claim 1, characterized in that the difference between the distances between the sides of the head and the axis line is an arithmetic progression.

3. The quantitative adjustment pin according to claim 1 or 2, characterized in that there is a pin-drawing hole with an internal thread in the center of the polygonal head.

4. The quantitative adjustment pin according to claim 1, wherein the polygonal head is quadrilateral.

5. The quantitative adjustment pin according to claim 1, wherein the polygonal head is hexagonal.

6. The quantitative adjustment pin according to claim 1, wherein the polygonal head is octagonal.