CN213225684U

CN213225684U - Telescopic stone stick rotating shaft

Info

Publication number: CN213225684U
Application number: CN202021984363.0U
Authority: CN
Inventors: 李东升; 徐思海; 陈品凡; 陈步林
Original assignee: Shenzhen Fable Jewelry Technology Co ltd; Guilin University of Technology
Current assignee: Shenzhen Fable Jewelry Technology Co ltd; Guilin University of Technology
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-05-18
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a scalable stick of gluing stone rotation axis, it includes rotating spindle and telescopic shaft. The front end of the rotating main shaft is provided with a slot which is coaxial with the rotating main shaft, and an elastic buffer piece is arranged in the slot. The free end of the telescopic shaft is provided with an adhesive groove, and the jewel to be ground is adhered to the adhesive groove through the jewel adhesive. The fixed end of the telescopic shaft is inserted in the slot in a sliding mode, and when the free end of the telescopic shaft is collided by outside hard, the telescopic shaft compresses and compresses the elastic buffer piece in the slot. From this, through setting up telescopic shaft and elastic buffer, when the precious stone that bonds at the telescopic shaft free end and grinding device's abrasive disc take place hard collision, the telescopic shaft can contract in the slot of rotatory main shaft, realizes the energy-absorbing buffering through compression elastic buffer to the precious stone that bonds on the avoiding telescopic shaft free end and grinding device's abrasive disc take place hard collision and damage.

Description

Telescopic stone stick rotating shaft

Technical Field

The utility model relates to a technical field of precious stone processing, in particular to scalable stick of gluing stone rod rotation axis.

Background

The common gem processing and grinding equipment on the market generally consists of a frame, a motor, a polishing disc and a lifting table which are arranged on the frame, and is matched with an octagonal hand or a mechanical arm to finish grinding of gems. The grinding equipment has the advantages of complex processing process, high operation difficulty and low efficiency, and greatly restricts the development of the gem processing industry.

With the rapid development of automation technology, gemstone working grinding apparatuses are also gradually developing toward automation. For example, patent publication No. CN101653620A discloses a novel automatic gem grinding machine, which mainly comprises a frame, a grinding device and a feeding device, wherein the grinding device mainly comprises a fractional motor, a cylinder, a flywheel, an angle swing arm, a nonlinear cam, a cam motor, a material clamping hook and a gun head, the flywheel can be controlled by the cylinder to drive the material clamping hook to pull open a material clamp of the feeding mechanism, a clay stick can be automatically fed into the axle center of the gun head by the hopper, the machine controls the operation of the cam motor according to a program to drive the angle swing arm to perform front and back linear motions so as to grind gems from different angles, and the fractional motor controls the rotation of the gun head to finish any circumferential indexing of the gem carving and grinding.

However, in the above-mentioned patent publication, the clay rod is directly stuck in the axial center of the lance tip, and the clay rod does not have a buffer structure in the coaxial direction. During actual grinding, the jewel on the stone stick collides with the grinding disc firmly, and if the hardness of the jewel material is high, the jewel is easy to break.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model aims at providing a scalable stick stone stick rotation axis aims at solving and glues the problem that the stone stick does not have the buffering at automatic grinding in-process.

In order to achieve the above object, the utility model provides a scalable stone stick rotation axis, including rotating spindle and telescopic shaft. The front end of the rotating main shaft is provided with a slot which is coaxial with the rotating main shaft, and an elastic buffer piece is arranged in the slot. The free end of the telescopic shaft is provided with an adhesive groove, and the jewel to be ground is adhered to the adhesive groove through the jewel adhesive. The fixed end of the telescopic shaft is inserted in the slot in a sliding mode, and when the free end of the telescopic shaft is subjected to external hard collision, the telescopic shaft contracts and compresses the elastic buffer piece in the slot.

Optionally, a sliding sleeve is inserted into the slot in an interference manner, the telescopic shaft is in coaxial sliding fit with the sliding sleeve, and the fixed end of the telescopic shaft penetrates through the sliding sleeve and abuts against the elastic buffer member.

Optionally, the sliding sleeve is a ball spline shaft sleeve, and the telescopic shaft is provided with a ball groove matched with the ball spline shaft sleeve.

Optionally, an end face limiting block is arranged on the end face of the fixed end of the telescopic shaft.

Optionally, the end face limiting block is locked to the end face of the fixed end of the telescopic shaft through a screw.

Optionally, the elastic buffer is a metal spring.

By adopting the scheme, the slot is formed in the rotating main shaft, the elastic buffer piece is arranged in the slot, the telescopic shaft movably inserted in the slot is further arranged, the free end of the telescopic shaft is provided with the adhesive groove, and the jewel to be ground can be adhered to the adhesive groove through the jewel adhesive.

From this, when the precious stone of telescopic shaft free end and grinding equipment's abrasive disc take place hard collision, the telescopic shaft can contract in the slot of rotatory main shaft, realizes the energy-absorbing buffering through compression elastic buffer spare to avoid the precious stone of telescopic shaft free end and grinding equipment's abrasive disc to take place hard collision and damage.

And, set up viscose groove through the free end at the telescopic shaft, can replace the clay stick with the telescopic shaft, perhaps regard as the telescopic shaft with the clay stick, the clay stick that the clay stick and rotatory main shaft decentraction arouse when eliminating loading and unloading clay stick rocks, improves the machining precision of precious stone greatly, improves precious stone finished product quality, reduces the off-the-shelf disability rate of precious stone.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a rotating shaft of a retractable stone stick of the present invention;

fig. 2 is a cross-sectional view of an embodiment of the rotating shaft of the retractable stone stick of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 the attached drawing 1, the embodiment of the present invention provides a retractable stone stick rotating shaft, which includes a rotating main shaft 1 and a retractable shaft 2. The front end of the rotary spindle 1 has a slot (not shown) coaxially provided therein, and an elastic buffer 3 is provided in the slot. The free end of the telescopic shaft 2 is provided with an adhesive groove 2a, and the jewel to be ground is adhered to the adhesive groove 2a through the jewel adhesive. The fixed end of the telescopic shaft 2 is inserted in the slot in a sliding mode, and when the free end of the telescopic shaft 2 is collided by outside hard, the telescopic shaft 2 contracts and compresses the elastic buffer part 3 in the slot.

For example, when the table of the gemstone is pressed into contact with the polishing pad of the polishing device to achieve the polishing effect, the impact generated when the gemstone and the polishing pad rub is a hard impact. Impact force during hard collision acts on the telescopic shaft 2, so that the telescopic shaft 2 is contracted and compressed into the slot to compress the elastic buffer parts 3, kinetic energy during collision is absorbed by the elastic buffer parts 3, and the situation that the jewel is broken due to over-thrust is avoided.

Compared with the prior art, the utility model discloses a set up the slot on rotatory main shaft 1 to set up elastic buffer 3 in the slot, set up the telescopic shaft 2 of a activity grafting in the slot again, and set up viscose groove 2a at the free end of this telescopic shaft 2, treat the precious stone accessible precious stone adhesive joint of grinding at viscose groove 2 a.

From this, when the precious stone of telescopic shaft 2 free end and grinding equipment's abrasive disc take place hard collision, telescopic shaft 2 can contract in the slot of rotatory main shaft 1, realizes the energy-absorbing buffering through compression elastic buffer piece 3 to the precious stone of avoiding telescopic shaft 2 free end and grinding equipment's abrasive disc to take place hard collision and damage.

And, set up viscose groove 2a through the free end at telescopic shaft 2, can replace the clay stick with telescopic shaft 2, perhaps regard as telescopic shaft 2 with the clay stick, the clay stick that the clay stick and 1 decentraction of rotary main shaft arouse rocks when eliminating loading and unloading the clay stick, improves the machining precision of precious stone greatly, improves precious stone finished product quality, reduces the off-the-shelf disability rate of precious stone.

Specifically, as shown in fig. 2, in the present embodiment, a sliding sleeve 4 is inserted into the slot with interference, and the fixed end of the telescopic shaft 2 is inserted into the sliding sleeve 4 coaxially and slidably, and passes through the sliding sleeve 4 to abut against the elastic buffer 3. Sliding sleeve 4 and rotating spindle 1 adopt interference fit, and the concentricity is good to guarantee the concentricity of telescopic shaft 2 and rotating spindle 1 from this, when avoiding rotating spindle 1 to drive telescopic shaft 2 and rotate, telescopic shaft 2 takes place to rock.

Alternatively, in this embodiment, the sliding sleeve 4 is a ball spline sleeve, and the telescopic shaft 2 is provided with a ball groove matched with the ball spline sleeve. From this, can enough realize that telescopic shaft 2 is flexible along the axial of telescopic shaft 2 relative sliding sleeve 4, can also rotate through rotating main shaft 1 and drive telescopic shaft 2 and rotate to realize that the precious stone is carved and grinds arbitrary circumference graduation, telescopic shaft 2 self also can not rotate when rotating main shaft 1 does not rotate, does not influence the normal carving after the precious stone is rotatory and grinds.

In the above embodiment, the two ends of the sliding sleeve 4 are respectively provided with the limiting nuts (41, 42), and the two limiting screws (41, 42) are sleeved on the telescopic shaft 2 to limit the balls in the ball spline shaft sleeve.

Optionally, in this embodiment, the end face of the fixed end of the telescopic shaft 2 is provided with an end face limiting block 21. Through setting up end stopper 21 to on the convenient impact force with the collision in-process transmits elastic buffer 3, carry out the energy-absorbing buffering through elastic buffer 3.

Specifically, the end face limiting block 21 is locked to the end face of the fixed end of the telescopic shaft 2 through a screw, and is simple in structure and convenient to implement.

Alternatively, in the present embodiment, the elastic buffer 3 is a metal spring. The metal spring has good elastic buffering effect, can provide good supporting effect for the telescopic shaft 2, and avoids the influence on the grinding and polishing effect caused by the telescopic shaft 2 shrinking towards the inside of the slot during soft collision.

It should be noted that the elastic buffer 3 may also be a spring plate, a rubber spring, a rubber pad, etc., as long as it is an element capable of absorbing kinetic energy through elastic deformation, and this is not particularly limited in the embodiment of the present invention.

The above is only the preferred embodiment of the present invention, not used in the present invention, and any slight modifications, equivalent replacements and improvements made by the technical entity of the present invention to the above embodiments should be included in the protection scope of the technical solution of the present invention.

Claims

1. A telescopic stone stick rotating shaft is characterized by comprising a rotating main shaft and a telescopic shaft; the front end of the rotating main shaft is provided with a slot which is coaxial with the rotating main shaft, and an elastic buffer piece is arranged in the slot; the free end of the telescopic shaft is provided with an adhesive groove, and the jewel to be ground is adhered to the adhesive groove through the jewel; the fixed end of the telescopic shaft is inserted in the slot in a sliding mode, and when the free end of the telescopic shaft is subjected to external hard collision, the telescopic shaft contracts and compresses the elastic buffer piece in the slot.

2. The retractable stone stick rotating shaft as claimed in claim 1, wherein a sliding sleeve is inserted into the slot in an interference manner, the retractable shaft is coaxially and slidably engaged with the sliding sleeve, and a fixed end of the retractable shaft passes through the sliding sleeve and abuts against the elastic buffer.

3. The retractable, stone stick rotatable shaft of claim 2, wherein said sliding sleeve is a ball spline housing, and said shaft is provided with a ball groove for engaging said ball spline housing.

4. The retractable stone stick rotating shaft as claimed in claim 1, wherein the fixed end face of the retractable shaft is provided with an end face stopper.

5. The retractable, stone-stick rotatable shaft of claim 4, wherein the end-face stop block is screwed to the fixed end-face of the shaft.

6. The retractable, possibly glued stone rod turning shaft according to any one of claims 1 to 5, characterized in that said elastic buffer is a metal spring.