Quick positioning pin

Abstract

The utility model relates to the technical field of positioning pins, in particular to a quick positioning pin which comprises a base, a device bottom plate is arranged above the base, a device needing to be positioned is fixed to the top of the device bottom plate, at least two pin holes are formed in the upper portion of the base, at least two holes are formed in the device bottom plate, the holes correspond to the pin holes, and the area of the holes is larger than that of the pin holes. An inner-layer positioning pin is inserted into the pin hole and penetrates through the hole; an outer-layer positioning pin is inserted into the hole and is provided with an opening which is through up and down; each notch is in a strip shape, one end of each notch is an open end, the other end of each notch is located in the center of the corresponding outer-layer positioning pin, the inner side wall of each notch is attached to the outer side wall of the corresponding inner-layer positioning pin, the inner-layer positioning pins are matched with the outer-layer positioning pins through the double-layer positioning pins, the multiple outer-layer positioning pins are matched with the inner-layer positioning pins located in the notches in different directions, and the angles of the outer-layer positioning pins are adjusted; and the positioning of the inner-layer positioning pin is realized by inserting, so that the limitation on the bottom plate and the base of the device is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to positioning pin technical field, concretely is a kind of quick positioning pin. BACKGROUND

[0002] Pin is mainly used for accurate positioning and fixed, is widely used in the various parts of mechanical equipment, is a very common fixed and positioning method;When the high-speed gear box and test bench with small support and other mechanical assembly are carried out, positioning pin needs to ensure the relative position accuracy of parts, split-hole assembly, requires high assembly degree, after positioning, positioning pin often needs to be drilled and equipped after two workpiece assembly.

[0003] When pin is used for accurate positioning equipment, it can ensure that the equipment runs smoothly and does not displace greatly due to factors such as vibration. However, when the equipment needs to be overhauled due to long-term operation, some deformation will occur due to long-term operation of the equipment. When the equipment is repositioned, the pin hole will probably be misaligned. At this time, the pin hole needs to be re-drilled and the pin needs to be re-equipped. This is extremely troublesome for complex on-site environments and greatly increases the labor intensity of workers. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a quick positioning pin.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a quick positioning pin, comprising a base, a device bottom plate is arranged above the base, a device to be positioned is fixed on the top of the device bottom plate, at least two pin holes are formed in the upper portion of the base, at least two holes are formed in the device bottom plate, the holes correspond to the pin holes, and the area of the holes is greater than the area of the pin holes, an inner layer positioning pin is inserted into the pin hole, and the inner layer positioning pin penetrates the hole; an outer layer positioning pin is inserted into the hole, and the outer layer positioning pin is provided with a slit penetrating upward and downward; the slit is in strip shape, one end of the slit is an open end, and the other end of the slit is located at the center of the outer layer positioning pin, and the inner wall of the slit is attached to the outer wall of the inner layer positioning pin. When the outer layer positioning pin is provided with two, the assembly times are reduced, and the convenience of positioning is further improved. When the outer layer positioning pin is more, the stability of assembly is improved.

[0006] As a further optimization of the utility model, the top of the outer layer positioning pin is higher than the upper surface of the device bottom plate.

[0007] Through the design that the top of the outer layer positioning pin is higher, the outer layer positioning pin is convenient to extract.

[0008] As a further optimization of the utility model, a plurality of handles and bolts are threadedly connected around the base, and the handles and bolts penetrate the device bottom plate.

[0009] The handle bolt is arranged on the device bottom plate and the base to provide reinforcement.

[0010] As a further preferred embodiment of the present application, the inner layer positioning pin bottom end is threadedly connected with the base, and a positioning nut is fixed to the inner layer positioning pin top end, and the lower surface of the positioning nut abuts against the base.

[0011] Through extrusion of the positioning nut, rotation of the outer layer positioning pin is avoided.

[0012] As a further preferred embodiment of the present application, the outer layer positioning pin is provided with friction lines above the device bottom plate portion.

[0013] The friction lines are arranged to facilitate extraction of the outer layer positioning pin, and the friction lines are also arranged to cooperate with the lower surface of the positioning nut to avoid rotation of the outer layer positioning pin after positioning.

[0014] Technical effects and advantages of the present application:

[0015] Through the double-layer positioning pin, the inner layer positioning pin cooperates with the outer layer positioning pin, a plurality of outer layer positioning pins cooperate with the inner layer positioning pins located in different directions, the angle of the outer layer positioning pin is adjusted, and the outer layer positioning pin is inserted and fixed, the positioning of the inner layer positioning pin is realized, and the restriction of the device bottom plate and the base is realized, and re-holing and positioning are not required, and the work intensity of workers is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of a quick positioning pin of the present application.

[0017] Figure 2 It is a structural schematic view of a quick positioning pin of the present application. Figure 1 It is a side view of A-A of the present application.

[0018] Figure 3 It is a perspective view of a quick positioning pin of the present application.

[0019] Figure 4 It is a position schematic view of the total friction lines of the outer layer positioning pin of the present application.

[0020] The figure marks are as follows: 1, base; 2, inner layer positioning pin; 3, device to be positioned; 4, outer layer positioning pin; 5, device bottom plate; 6, handle bolt; 7, positioning nut; 401, friction lines. DETAILED DESCRIPTION

[0021] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Referring to the drawings Figures 1-4 As shown in the figure, a quick positioning pin comprises a base 1, a device bottom plate 5 is arranged above the base 1, a device 3 to be positioned is fixed to the top of the device bottom plate 5, two pin holes are formed in the upper portion of the base 1, two holes are formed in the device bottom plate 5, the holes correspond to the pin holes, and the area of the holes is greater than the area of the pin holes, an inner layer positioning pin 2 is inserted into the pin holes, and the inner layer positioning pin 2 penetrates the holes; an outer layer positioning pin 4 is inserted into the holes, and the outer layer positioning pin 4 is provided with a slit penetrating through the upper and lower portions; the slit is in strip shape, one end of the slit is an open end, and the other end is located at the center of the outer layer positioning pin 4, and the inner wall of the slit is attached to the outer wall of the inner layer positioning pin 2; in order to avoid rotation of the outer layer positioning pin 4, the outer layer positioning pin 4 is fixed by friction extrusion or supplemental spot welding or other detachable fixing methods.

[0023] As Figure 2 shown in the embodiments of the utility model, the top of the outer layer positioning pin 4 is higher than the upper surface of the device bottom plate 5, and the design that the top of the outer layer positioning pin 4 is higher facilitates extraction of the outer layer positioning pin 4.

[0024] As Figure 1 and 3 shown in the embodiments of the utility model, when fixed for a long time, a handle and a bolt can be additionally arranged to improve the stability of positioning, a plurality of handles and bolts 6 are threadedly connected to the periphery of the base 1, the handles and bolts 6 penetrate the device bottom plate 5, and the arrangement of the handles and bolts 6 provides reinforcement for the device bottom plate 5 and the base 1.

[0025] As Figure 2 shown in the embodiments of the utility model, the bottom end of the inner layer positioning pin 2 is threadedly connected to the base 1, a positioning nut 7 is fixed to the top end of the inner layer positioning pin 2, and the lower surface of the positioning nut 7 abuts against the base 1. Through extrusion of the positioning nut 7, rotation of the outer layer positioning pin 4 is avoided.

[0026] As Figure 4As shown, in the embodiment of the utility model, the outer positioning pin 4 is higher than the device base plate 5 and is provided with a frictional pattern 401. The frictional pattern 401 is arranged to facilitate the extraction of the outer positioning pin 4, and the frictional pattern 401 is also arranged to cooperate with the lower surface of the positioning nut 7 to prevent the outer positioning pin 4 from rotating after being positioned.

[0027] In the working process of the utility model, the position of the device 3 to be positioned is determined, and the position of the device base plate 5 is adjusted. Since the hole corresponding to the outer positioning pin 4 is larger, the pin hole of the inner positioning pin 2 remains inside the hole corresponding to the outer positioning pin 4 after the inner positioning pin 2 is reinstalled and displaced. The notch position of the outer positioning pin 4 is adjusted so that the notch position covers the pin hole of the inner positioning pin 2. The inner positioning pin 2 is screwed and fastened. The outer positioning pin 4 is pressed by the positioning nut 7 to prevent the outer positioning pin 4 from rotating, that is, the fixing of the device 3 to be positioned is completed.

[0028] The above is only the preferred embodiment of the utility model and is not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A quick-positioning pin, comprising a base, a device base plate above the base, and a device to be positioned fixed on the top of the device base plate, characterized in that: At least two pin holes are provided above the base, and at least two holes are provided on the bottom plate of the device. The holes correspond to the pin holes, and the area of ​​the holes is larger than the area of ​​the pin holes. An inner positioning pin is inserted into the pin hole, and the inner positioning pin passes through the hole. An outer positioning pin is inserted into the hole, and the outer positioning pin has a notch that runs vertically through it. The notch is strip-shaped, with one end being an open end and the other end located at the center of the outer positioning pin. The inner sidewall of the notch fits against the outer sidewall of the inner positioning pin.

2. A quick positioning pin according to claim 1, characterized in that: the top of the outer positioning pin is higher than the upper surface of the device base plate.

3. A quick positioning pin according to claim 1, characterized in that: a plurality of handles and bolts are threaded around the base, and the handles and bolts penetrate the bottom plate of the device.

4. A quick positioning pin according to claim 1, characterized in that: the bottom end of the inner positioning pin is threadedly connected to the base, the top end of the inner positioning pin is fixed with a positioning nut, and the lower surface of the positioning nut abuts against the base.

5. A quick positioning pin according to claim 2, characterized in that: the outer positioning pin; the portion above the bottom plate of the device is provided with friction texture.

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