CN209992002U - Small part positioning detection jig - Google Patents

Abstract

The utility model discloses a smallclothes location detection tool, including infrabasal plate, fixing base, positioning mechanism, upper substrate, pulling force mechanism and spring. The utility model discloses: 1. the accurate positioning of the small workpiece is guaranteed by the aid of the elasticity of the spring, the flatness of the plane of one end of the pin large-head portion and the flatness of the upper surface of the upper substrate, the repeated positioning precision is smaller than 0.01mm, and the high-precision measurement requirements of a CCD (charge coupled device) and a line laser can be met. 2. By utilizing the characteristic that one end plane of the pin big head part has higher planeness in industrial production, the edge part of the one end plane of the pin big head part is utilized or a new use function is excavated, the positioning error of the small workpiece is reduced again, the requirement of the small workpiece on higher measurement precision is met, and the structure is simple and very practical.

Description

Small part positioning detection jig

Technical Field

The utility model relates to a positioning jig, concretely relates to smallclothes location detection tool.

Background

In the positioning of a small workpiece, because the bottom surface of the substrate is generally of a non-planar structure, a profiling positioning mode is usually adopted, the substrate is placed on a measuring platform, a groove matched with the bottom surface of the small workpiece in shape is formed in the upper surface of the substrate, the substrate is placed on the measuring platform, and the small workpiece is placed in the groove, so that the profiling positioning use mode is achieved. However, in this method, even if the flatness of the upper surface of the measurement platform and the lower surface of the substrate can be ensured, since the substrate is directly placed on the measurement platform, the substrate serves as a layer body, the measurement platform serves as a layer body, and the layers are directly placed, a flatness error after placement, which is an error of a flatness of 0.02mm in general, is inevitably generated, and there is no small-workpiece positioning mechanism capable of reducing the error again, and a small-workpiece positioning mechanism capable of reducing the error by exploring and utilizing a new use function of the pin.

In order to solve the technical problems, a new technical scheme is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a smallclothes location detection tool to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a small part positioning detection jig comprises a lower substrate, a fixed seat, a positioning mechanism, an upper substrate, a tension mechanism and a spring, wherein the lower substrate comprises a lower surface and an upper surface, the lower substrate is fixedly connected with the fixed seat through the lower surface, the number of the positioning mechanism is more than 3, the positioning mechanism comprises pins, pin holes A and pin holes B, the lower substrate is provided with the pin holes A matched with the pins, the upper substrate is provided with the pin holes B matched with the pins, the pins comprise a large head part and a slender part, the large head part of each pin comprises an end plane, one end plane comprises a middle part and an edge part except the middle part, one end of the slender part of each pin is fixedly connected with the middle part of one end plane of the large head part of each pin, and the other end of the slender part of each pin sequentially penetrates through the pin holes B and the pin holes A to enable the edge part of one end, the tension mechanisms used for enabling the upper substrate to be adsorbed towards the lower substrate direction are uniformly distributed below the upper substrate, the springs are located between the upper base and the lower base, and the springs are sleeved on the pins.

Preferably, the tensile mechanism comprises a permanent magnet fixedly arranged on the lower substrate or fixedly arranged on the upper substrate.

Preferably, the tensile mechanism comprises a thread A and a thread B matched with the thread A, the thread A is arranged on the side part of the other end of the slender part of the pin, the thread B is arranged on the inner side part of the pin hole B, and the side part of the other end of the slender part of the pin is in threaded connection with the thread B on the inner side part of the pin hole B through the thread A.

Preferably, the pin holes B of the positioning mechanisms with the number of 3 or more are uniformly distributed on the upper substrate.

Preferably, the pin hole a is parallel to a vertical line.

Preferably, the pin hole B is parallel to a vertical line.

Preferably, the upper surface of the upper base plate and one end plane of the pin head part are respectively parallel to the horizontal line.

Preferably, the upper surface of the upper base plate and one end plane of the pin head part are parallel to each other.

Preferably, the axis of the pin is parallel to a plumb line, and the bottom of the fixed seat is parallel to a horizontal line.

Preferably, the pin may be replaced with a bolt or a screw.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the accurate positioning of the small workpiece is guaranteed by the aid of the elasticity of the spring, the flatness of the plane of one end of the pin large-head portion and the flatness of the upper surface of the upper substrate, the positioning accuracy is smaller than 0.01mm, and the high-accuracy measurement requirements of a CCD (charge coupled device) and a line laser can be met. 2. By utilizing the principle that in industrial production, the edge part of one end plane of the pin big head part is easily produced into a structure with higher planeness and the edge part of one end plane of the pin big head part in the prior art is the structure with higher planeness, the edge part of one end plane of the pin big head part is utilized or a new use function is excavated, the positioning error of small workpieces is reduced again, the requirement of high measurement precision of the small workpieces is met, the structure is simple, and the method is very practical.

Drawings

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

Fig. 2 is a schematic structural diagram of the tension mechanism when the tension mechanism is a permanent magnet.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a schematic view of the tension mechanism in a structure in which the thread a and the thread B are engaged.

Fig. 5 is an exploded view of fig. 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a small part positioning detection jig comprises a lower substrate 1, a fixed seat 2, a positioning mechanism (not shown in the figure), an upper substrate 3 and a tension mechanism (not shown in the figure), wherein the lower substrate 1 comprises a lower surface and an upper surface, the lower substrate 1 is fixedly connected with the fixed seat 2 through the lower surface, the number of the positioning mechanism is more than 3, the positioning mechanism comprises a pin 4, a pin hole A5 and a pin hole B6, a pin hole A5 matched with the pin 4 is arranged on the lower substrate 1, a pin hole B6 matched with the pin 4 is arranged on the upper substrate 3, the pin 4 comprises a large head part 7 and a slender part 8, the large head part 7 of the pin 4 comprises a flat end, the flat end comprises a middle part and an edge part except the middle part, one end of the slender part 8 of the pin 4 is fixedly connected with the middle part of the large head part 7 of the pin 4, and the other end of the slender part 8 of the pin 4 sequentially penetrates through the pin hole B6 and the pin hole A5 to 3, a tension mechanism for absorbing the upper substrate 3 towards the lower substrate 1 is uniformly distributed below the upper substrate 3, the spring 12 is positioned between the upper base and the lower base, and the spring 12 is sleeved on the pin 4.

Preferably, the tension mechanism comprises a permanent magnet 9, and the permanent magnet 9 is fixedly arranged on the lower substrate 1 or the upper substrate 3; the use effect that the upper surface of the upper substrate 3 is in close contact with the edge position of one end plane of the large head part 7 of the pin 4 through the pulling force generated by the magnetic attraction of the permanent magnet is achieved; when the upper surface of the substrate is provided with a groove matched with the bottom surface shape of the small workpiece, the two sides of each groove can be respectively and symmetrically provided with the permanent magnet 9 and the positioning mechanism so as to ensure the flatness of the small workpiece (not shown in the figure) which is close to the position of the groove 15 and is placed in the groove 15 after being placed.

Preferably, the tension mechanism comprises a thread a10 and a thread B11 matched with the thread a10, the thread a10 is a thread a10 arranged at the other end side of the slender part 8 of the pin 4, the thread B11 is a thread B11 arranged at the inner side of the pin hole B6, the other end side of the slender part 8 of the pin 4 is in threaded connection with the thread B11 at the inner side of the pin hole B6 through the thread a10, and the upper base plate 3 and the lower base plate 1 are fixedly connected through the thread a10 and the thread B11, so that the spring 12 can tightly press the upper base plate 3 by its own elasticity to tightly contact the upper surface of the upper base plate 3 with the edge position of the end plane 14 of the big end part 7 of the pin 4.

Preferably, the pin holes B6 of the positioning mechanisms whose number is 3 or more are uniformly distributed on the upper substrate 3.

Preferably, the pin hole a5 is parallel to the vertical line.

Preferably, the pin hole B6 is parallel to the vertical line.

Preferably, the upper surface of the upper substrate 3 and one end plane of the head portion 7 of the pin 4 are parallel to the horizontal line, respectively.

Preferably, the upper surface of the upper substrate 3 and one end plane of the head portion 7 of the pin 4 are parallel to each other.

Preferably, the axis of the pin 4 is parallel to the vertical line, and the bottom of the fixed seat 2 is parallel to the horizontal line.

Preferably, the pin 4 can be replaced by a bolt or a screw.

When in use: the utility model utilizes the elasticity of the spring 12, the planeness of the pin 4 and the planeness of the upper surface of the upper base plate 3 to ensure the accurate positioning of the small workpiece, and the repeated positioning precision is less than 0.01mm, thus meeting the high-precision measurement requirements of CCD (industrial camera) and line laser; for example, in the positioning of a small workpiece, the upper surface of the upper substrate 3 is connected with the edge of one end plane 14 of the large head part 7 of the pin 4 by the elastic force of the spring 12, wherein the upper surface of the upper substrate 3 and the one end plane 14 of the large head part 7 of the pin 4 are parallel to each other and are respectively parallel to the horizontal line, so that the upper substrate 3 is adjusted to the horizontal position again by the close contact between the upper surface of the pin 4 and the pin 4, and the accurate positioning of the small workpiece is conveniently ensured; meanwhile, by utilizing the principle that the edge part of the end plane 14 of the large head part 7 of the pin 4 is easily produced into a structure with higher planeness in industrial production and the edge part of the end plane 14 of the large head part 7 of the pin 4 is the structure with higher planeness in the prior art, the using effect of reducing the positioning error of the small workpiece again by utilizing the combination of a simple structure is achieved, the requirement of higher measurement precision of the small workpiece is met, and the structure is simple and very practical.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a smallclothes location detection tool which characterized in that: the lower substrate comprises a lower surface and an upper surface, the lower substrate is fixedly connected with the fixing seat through the lower surface, the number of the positioning mechanisms is more than 3, each positioning mechanism comprises a pin, a pin hole A and a pin hole B, the pin hole A matched with the pin is arranged on the lower substrate, the pin hole B matched with the pin is arranged on the upper substrate, the pin comprises a large head part and a slender part, the large head part of the pin comprises an end plane, the end plane comprises a middle part and an edge part except the middle part, one end of the slender part of the pin is fixedly connected with the middle part of the end plane of the large head part of the pin, the other end of the slender part of the pin sequentially penetrates through the pin hole B and the pin hole A to enable the edge part of the end plane of the large head part of the pin to be pressed on the upper surface of the upper substrate, and tension mechanisms for absorbing the upper substrate towards the lower substrate are uniformly distributed below the upper substrate, the spring is located between upper base and the lower base, and the spring housing is established on the pin.

2. The small part positioning and detecting jig of claim 1, wherein: the tension mechanism comprises a permanent magnet, and the permanent magnet is fixedly arranged on the lower substrate or the upper substrate.

3. The small part positioning and detecting jig of claim 1, wherein: the tension mechanism comprises a thread A and a thread B matched with the thread A, the thread A is arranged on the side part of the other end of the slender part of the pin, the thread B is arranged on the inner side part of the pin hole B, and the side part of the other end of the slender part of the pin is in threaded connection with the thread B on the inner side part of the pin hole B through the thread A.

4. The small part positioning and detecting jig according to any one of claims 1 to 3, characterized in that: the pin holes B of the positioning mechanisms with the number of more than 3 are uniformly distributed on the upper base plate.

5. The small part positioning and detecting jig according to any one of claims 1 to 3, characterized in that: the pin hole A is parallel to the plumb line.

6. The small part positioning and detecting jig according to any one of claims 1 to 3, characterized in that: the pin hole B is parallel to the plumb line.

7. The small part positioning and detecting jig according to any one of claims 1 to 3, characterized in that: the upper surface of the upper base plate and one end plane of the pin big head part are respectively parallel to the horizontal line.

8. The small part positioning and detecting jig according to any one of claims 1 to 3, characterized in that: the upper surface of the upper base plate and one end plane of the pin big head part are parallel to each other.

9. The small part positioning and detecting jig according to any one of claims 1 to 3, characterized in that: the axis of the pin is parallel to the plumb line, and the bottom of the fixed seat is parallel to the horizontal line.

10. The small part positioning and detecting jig according to any one of claims 1 to 3, characterized in that: the pins may be replaced with bolts or screws.

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