CN209812135U - Adjustable magnetic positioning device for automobile sheet metal stamping part - Google Patents

Abstract

The adjustable magnetic positioning device for automobile sheet metal stamping parts belongs to the technical field of sheet metal parts positioning equipment, and includes a sandwich plate, an adjustable support column and a magnet. The height adjustment portion of the adjustable support column includes an inner conduit, a sleeve and a wing nut. The magnets are placed in grooves in the top of the sleeve. The positioning device of the utility model is used to temporarily replace the formal fixture, and has the advantages of simple structure, small volume, wide application range and low cost, and can basically realize the full coverage detection of sheet metal parts by a three-coordinate measuring instrument. The utility model has high rigidity and clamping accuracy, and can give full play to the characteristics of reliable positioning, fast clamping, small deformation error and high measurement accuracy in the three-coordinate precision measurement of sheet metal parts. It has been proved by actual use. , the application effect is good, it can meet the flexible and changeable requirements of the three-coordinate precision measurement of car parts, provides a new way for the general measurement of car parts, and explores new ideas for enterprise product quality management and technological progress.

Description

Adjustable magnetic positioning device for automotive sheet metal stamping parts

technical field

The utility model belongs to the technical field of sheet metal parts positioning equipment, in particular to an adjustable magnetic positioning device for automobile sheet metal stamping parts.

Background technique

With the development of the automobile industry, the types of sheet metal parts are increasing year by year, and the quality requirements for sheet metal parts are becoming more and more strict. In order to ensure the quality of the products, it is necessary to frequently use the CMM to measure the parts with various types, complex shapes and different sizes. The traditional method is to first formulate various positioning and clamping schemes according to the measurement requirements before measuring a part each time, and then make special fixtures, and then according to the established scheme, on the work surface of the CMM, these positioning And the clamping device is built up, and the measurement coordinate system is established on this basis, and the measurement is carried out. This method is relatively low in response to modern mass customization production. The thin-walled parts measured in the field of automobile production are generally formed by stamping process, and generally have two characteristics: one is more complex and irregular in shape, so positioning, supporting and clamping are more troublesome, especially for different products. Different special fixtures not only increase the production cost, but also take up too much storage space, and waste time and reduce work efficiency when the measuring bracket is frequently replaced. Second, the rigidity is relatively poor, easy to deform, and it is easy to introduce additional errors.

In order to solve the above problems, the Chinese patent document discloses a universal combined three-coordinate measuring bracket [CN201463866U], which includes a base, a U-shaped support and compression block is arranged on the base, and a compression screw is arranged on the support and compression block. , the sheet metal part is arranged in the U-shaped opening of the support pressing block, and the sheet metal part is pressed by adjusting the pressing screw. Compressing the parts by pressing the screw will cause damage to the parts, serious deformation of the parts, resulting in inaccurate measured data; parts of the parts are located in the support and compression block, this part cannot be measured, Therefore, the data obtained by the measurement is not comprehensive; and the structure of the components in the three-coordinate measurement is relatively complex, and the sizes are different. It is difficult to effectively position the larger components only by pressing the screws, and the scope of use is limited.

Therefore, there is an urgent need for a new technical solution in the prior art to solve this problem.

Utility model content

The technical problem to be solved by the utility model is: to provide an adjustable magnetic positioning device for automobile sheet metal stamping parts, which is used to solve the problem of high cost, waste of material resources, occupation of storage space, and frequent replacement work in the prior art. Low efficiency; the universal combined three-coordinate measuring bracket cannot effectively locate larger parts, and the technical problem of limited use range.

The adjustable magnetic positioning device for automobile sheet metal stamping parts includes a sandwich plate, an adjustable support column and a magnet. The sandwich plate is provided with evenly distributed fixing holes; the inner wall of the fixing hole is provided with threads; The support column is divided into upper, middle and lower parts, the lower part is the fixed part, the middle part is the artificial rotation part, and the upper part is the height adjustment part; the fixed part is screwed with the fixing hole of the sandwich board; the height adjustment part includes an internal conduit , sleeve and wing nut; the inner guide tube is fixedly connected with the artificial rotating part, the outer part of the inner guide tube is sheathed with a sleeve; the outer side wall of the sleeve is provided with a wing nut, and the inner top of the sleeve is provided with a concave groove; the magnet is arranged in the groove on the top of the sleeve and the magnet is movably connected with the groove.

The upper two ends of the sandwich board are provided with handles.

An anti-skid layer is provided on the outer surface of the manual rotation part.

The height of the magnet is smaller than the height of the groove.

The number of the adjustable support columns is more than ten.

Through the above-mentioned design scheme, the utility model can bring the following beneficial effects:

The utility model provides an adjustable magnetic positioning device, which is used to temporarily replace the positioning device of a formal fixture. The utility model has the advantages of simple structure, small volume, wide application range, low cost, and can basically achieve full coverage of sheet metal parts by a three-coordinate measuring instrument. Detection can overcome the current deficiencies that improper detection may lead to delays in construction time and cost losses.

The utility model has high rigidity and clamping accuracy, and can give full play to the characteristics of reliable positioning, fast clamping, small deformation error and high measurement accuracy in the three-coordinate precision measurement of sheet metal parts. It has been proved by actual use. , the application effect is good, it can meet the flexible and changeable requirements of the three-coordinate precision measurement of car parts, provides a new way for the general measurement of car parts, and explores new ideas for enterprise product quality management and technological progress.

Description of drawings

Below in conjunction with the accompanying drawings and specific embodiments, the present utility model will be further described:

FIG. 1 is a schematic structural diagram of an adjustable magnetic positioning device for an automobile sheet metal stamping part of the present invention.

FIG. 2 is a schematic structural diagram of an adjustable support column in the adjustable magnetic positioning device for an automobile sheet metal stamping part of the present invention.

FIG. 3 is a schematic structural diagram of the sleeve in the adjustable magnetic positioning device of the automobile sheet metal stamping part of the present invention.

In the figure, 1-sandwich plate, 2-adjustable support column, 3-magnet, 101-fixing hole, 102-handle, 201-fixed part, 202-the middle part is the manual rotation part, 203-the upper part is the height adjustment part, 204 -Inner Conduit, 205-Sleeve, 206-Wing Nut.

Detailed ways

The three-coordinate precision measurement is used for the measurement of various types of products. In order to clamp various types of products of different sizes and shapes, the fixtures should be diverse, and products of various shapes and sizes can be clamped after proper adjustment. The three-coordinate measuring machine is generally a contact test probe and has a coordinate system setting function. The three-coordinate measuring machine can solve the problem of accurate positioning. Therefore, the adjustable magnetic positioning device for automobile sheet metal stamping parts for the three-coordinate measuring machine is only required to have The positioning and clamping functions can meet the requirements of use, which can simplify the structure of the fixture.

In order to adapt to the high efficiency of the three-coordinate precision measurement, the fixture should be able to use the product digital model to complete the virtual clamping of the product on the computer and formulate a general clamping plan to shorten the auxiliary time. In order to adapt to the multi-faceted measurement of the CMM, it is necessary to avoid the interference of the fixture structure, including the components on the fixture, on the movement track of the probe, and the fixture structure cannot hinder the multi-faceted measurement of the various parts of the product by the probe.

In order to have good process performance, the structure of the fixture should be simple and reasonable, and it is easy to manufacture, assemble, adjust, inspect and maintain. The fixture itself should have sufficient rigidity to meet the accurate and reliable positioning of the positioning product benchmark. For products with low rigidity, reliable clamping and small clamping deformation can be guaranteed.

In order to meet the above-mentioned requirements, the utility model is designed as follows:

As shown in the figure, the adjustable magnetic positioning device of the automobile sheet metal stamping part of the present invention comprises a sandwich plate 1 , an adjustable support column 2 and a magnet 3 .

The size of the upper plane of the sandwich plate 1 is 50cm*100cm, and the sandwich plate 1 is formed by arranging fixing holes 101 with a spacing of 30mm, and the inner walls of the fixing holes 101 are threaded. Both ends of the sandwich plate 1 are provided with handles 102, which can be attached to the bottom surface of the sandwich plate 1 through the platform of the three-coordinate measuring instrument, and the platform of the three-coordinate measuring instrument and the sandwich plate 1 can be connected through the corresponding screw holes and nuts. to be fixed.

The number of the adjustable support columns 2 is ten in total, the adjustable support columns 2 are columnar, and the adjustable support columns 2 are divided into upper, middle and lower parts. It is the manual rotation part 202, and the upper part is the height adjustment part 203. The fixing part 201 penetrates vertically into the fixing hole 101 of the sandwich panel 1 and is threadedly connected to the fixing hole 101 ; the surface of the artificial rotating part 202 is rough to facilitate manual tightening, and the height adjusting part 203 includes an inner conduit 204 , a sleeve 205 and a wing nut 206 ; The inner conduit 204 is fixedly connected with the artificial rotating part 202, and the outer casing of the inner conduit 204 is sleeved with a sleeve 205 and is slidably connected with the sleeve 205; The inner top of the tube 205 is provided with grooves. The distribution positions of the adjustable support columns 2 are determined according to the shape and size of the sheet metal parts, and the adjustable support columns 2 are fixed on the corresponding fixing holes 101 by the fixing parts 201 . Adjust the sleeve 205 at the upper end of the adjustable support column 2 according to the shape of the sheet metal part, and after the height is determined, adjust the wing nut 4 to be loosely fixed.

The magnet 3 is embedded in the groove on the inner top of the sleeve 205 , and the magnet 3 can move within a certain distance in order to facilitate the inconvenient positioning of the sheet metal part with complex structure. After the position of the adjustable support column 2 is determined, it is convenient for the rapid positioning of the sheet metal parts.

Claims (5)

1. An adjustable magnetic positioning device for automotive sheet metal stamping parts, characterized in that it comprises a sandwich plate (1), an adjustable support column (2) and a magnet (3), and the sandwich plate (1) is provided with uniformly distributed The fixing hole (101); the inner wall of the fixing hole (101) is provided with threads; the adjustable support column (2) is divided into upper, middle and lower parts, the lower part is the fixing part (201), and the middle part is the artificial part a rotating part (202), the upper part is a height adjusting part (203); the fixing part (201) is screwed with the fixing hole (101) of the sandwich board (1); the height adjusting part (203) comprises an inner conduit (204) ), a sleeve (205) and a wing nut (206); the inner conduit (204) is fixedly connected with the artificial rotation part (202), and the outer sleeve of the inner conduit (204) is sheathed with a sleeve (205); the sleeve The outer side wall of the tube (205) is provided with a wing nut (206), and the inner top of the sleeve (205) is provided with a groove; the magnet (3) is arranged in the groove of the inner top of the sleeve (205) and The magnet (3) is movably connected with the groove. 2 . The adjustable magnetic positioning device for automotive sheet metal stamping parts according to claim 1 , characterized in that: handles ( 102 ) are provided on both ends of the upper part of the sandwich plate ( 1 ). 3. The adjustable magnetic positioning device for an automobile sheet metal stamping part according to claim 1, wherein an anti-skid layer is provided on the outer surface of the manual rotating part (202). 4. The adjustable magnetic positioning device for automobile sheet metal stamping parts according to claim 1, wherein the height of the magnet (3) is smaller than the height of the groove. 5 . The adjustable magnetic positioning device for automotive sheet metal stamping parts according to claim 1 , wherein the number of the adjustable support columns ( 2 ) is more than ten. 6 .