CN211361965U - Can dismantle fixed top device - Google Patents

Abstract

The utility model provides a can dismantle fixed top device, install top, screw and supplementary stick in top cover including top cover, bottom, top horizontally is provided with waist type hole, supplementary stick can run through waist type hole supports and leans on the top surface of top cover, top still coaxially be provided with can with the communicating screw hole in waist type hole, the screw with screw hole phase-match and its bottom surface can support and lean on supplementary stick. The utility model discloses a set up waist type hole at top, set up waist type hole between the mounted position of the user position of apex portion and morse's cone promptly, just so can make distance between the user position of top and the mounted position of morse's cone reach the minimum to can make full use of detecting instrument's use stroke, increase the application range of instrument.

Description

Can dismantle fixed top device

Technical Field

The utility model belongs to the technical field of mechanical technology and measuring equipment, specifically relate to a can dismantle fixed top device.

Background

The centre is a common auxiliary tool in the mechanical industry, and has wide application in the technical field of detection equipment. In an apparatus for inspecting shaft parts, the parts are usually positioned by means of an upper and a lower tip, wherein the lower tip 1 is mounted in a rotatable tip sleeve 2 (as shown in fig. 1). The center hole of the shaft part is large or small, and in order to adapt to the center holes with different sizes, the lower tip 1 in the detection instrument is generally detachable; meanwhile, in order to ensure the repeated positioning precision, the lower center 1 is generally integrated; furthermore, the mounting part of the lower center 1 is matched with the center sleeve 2 by Morse taper, a section of external thread is designed and processed above the Morse taper, a nut 3 is mounted on the external thread section, and the lower center 1 can be ejected by rotating the nut 3, so that the lower center 1 can be replaced. Although the fixed center with the structure can be taken out, the length of the center is lengthened and the stroke space of the center is enlarged due to the fact that the external thread is additionally arranged on the center, so that the application range of the instrument is reduced.

SUMMERY OF THE UTILITY MODEL

To the above prior art, the to-be-solved technical problem of the utility model lies in providing a can reduce overall length, shorten the stroke space and dismantle convenient fixed top device dismantled.

In order to solve the technical problem, the utility model provides a can dismantle fixed top device, install top, screw and the auxiliary rod in top cover including top cover, bottom, top level is provided with waist type hole, the auxiliary rod can run through waist type hole supports and leans on the top surface of top cover, top still coaxially be provided with can with the communicating screw hole in waist type hole, the screw with screw hole phase-match and its bottom surface can support and lean on the auxiliary rod.

Preferably, the auxiliary rod is a round rod with flat square.

Preferably, the cross section of the auxiliary rod is square.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the waist-shaped hole is formed in the top of the center, namely the waist-shaped hole is formed between the using position of the tip end part and the mounting position of the Morse cone, so that the distance between the using position of the center and the mounting position of the Morse cone is minimized, the using stroke of the detection instrument can be fully utilized, and the using range of the instrument is enlarged.

2. The top of the center is provided with the threaded hole, so that the fixed center can be conveniently and quickly replaced through the screw.

Drawings

Fig. 1 is a schematic structural view of a conventional removable fixed center device.

Fig. 2 is the utility model relates to a can dismantle fixed top device's structural schematic.

Fig. 3 is a schematic structural view of the center of fig. 2.

Illustration of the drawings: 1-lower center, 2-center sleeve, 3-nut, 4-screw, 5-center, 51-morse cone, 52-center point, 53-threaded hole, 54-kidney-shaped hole and 6-auxiliary rod.

Detailed Description

The invention will be further described with reference to the drawings and preferred embodiments.

Fig. 2 shows a schematic structural diagram of a detachable fixed center device of the present invention, which includes a center sleeve 2, a center 5, a screw 4 and an auxiliary rod 6.

As shown in fig. 3, the point 5 includes two parts, a point tip 52 and a morse taper 51. Wherein, the part of the morbid cone 51 can be matched with the morbid taper hole on the center sleeve 2, namely the bottom of the center 5 can be fixedly arranged in the center sleeve 2; the longitudinal section of the top tip 52 part is set to be a trapezoid with a small upper part and a large lower part, and the top tip 52 part can be matched with a central hole of the shaft part to be detected, namely the top tip 52 part can be positioned and tightly jacks the shaft part to be detected; a waist-shaped hole 54 is horizontally arranged at the joint position of the apex 52 and the morse cone 51, a threaded hole 53 is coaxially arranged on the apex 52, the threaded hole 53 can be communicated with the waist-shaped hole 54, and the thread bottom diameter of the threaded hole 53 is slightly smaller than the width of the waist-shaped hole 54.

The auxiliary rod 6 is a round rod with flat square, the bottom surface of the auxiliary rod 6 can be abutted against the top surface of the center sleeve 2 after penetrating the kidney-shaped hole 54, and the auxiliary rod 6 can also penetrate the kidney-shaped hole 54 in a state that the center 5 is installed in place. The screw 4 may be matched to the threaded hole 53 of the tip 52 and the bottom surface may abut against the top surface of the auxiliary rod 6 when the threaded portion of the screw 4 is screwed into the threaded hole 53.

When the tip 5 is replaced, only the Morse taper body 51 part of the tip 5 is directly inserted into the Morse taper hole of the tip sleeve 2.

When the centre 5 is disassembled, the auxiliary rod 6 is firstly inserted into the kidney-shaped groove 54 of the centre 5, and the bottom surface of the auxiliary rod 6 is abutted against the top surface of the centre sleeve 2; then the screw 4 is screwed into the threaded hole 53 of the tip 5 until the bottom surface of the screw 4 abuts against the top surface of the auxiliary rod 6; finally, the screw 4 is further screwed in to partially disengage the morse taper 51 of the tip 5 from the tip housing 2, thereby ejecting the entire tip 5 out of the tip housing 2.

The foregoing merely illustrates preferred embodiments of the present invention, which are described in considerable detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (3)

1. The utility model provides a can dismantle fixed point device, includes top point cover (2) and install top (5) in top point cover (2) bottom, its characterized in that: the novel center is characterized by further comprising a screw (4) and an auxiliary rod (6), a waist-shaped hole (54) is horizontally formed in the top of the center (5), the auxiliary rod (6) can penetrate through the waist-shaped hole (54) and abut against the top surface of the center sleeve (2), a threaded hole (53) which can be communicated with the waist-shaped hole (54) is coaxially formed in the top of the center (5), the screw (4) is matched with the threaded hole (53), and the bottom surface of the screw can abut against the auxiliary rod (6).

2. A removable fixation tip device according to claim 1, wherein: the auxiliary rod (6) is a round rod with a flat square.

3. A removable fixation tip device according to claim 1, wherein: the cross section of the auxiliary rod (6) is square.

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