CN217727158U - Main shaft mechanism of special lathe for carrier roller machining - Google Patents

Main shaft mechanism of special lathe for carrier roller machining Download PDF

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Publication number
CN217727158U
CN217727158U CN202221836753.2U CN202221836753U CN217727158U CN 217727158 U CN217727158 U CN 217727158U CN 202221836753 U CN202221836753 U CN 202221836753U CN 217727158 U CN217727158 U CN 217727158U
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shaft
main shaft
center
tail
tail platform
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郭永成
孟策
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Shenyang Chiao Automation Technology Development Co ltd
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Shenyang Chiao Automation Technology Development Co ltd
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Abstract

The utility model belongs to the technical field of special lathe makes, a main shaft mechanism of bearing roller processing special lathe is provided very much. The main shaft mechanism mainly comprises a main shaft box assembled on one side of a lathe base, a tail platform box assembled on the other side of the lathe base, a main shaft assembly and a tail platform shaft. The main shaft assembly comprises a main shaft, an auxiliary shaft, a belt wheel, a rotary oil cylinder, a locking nut, a chuck chair and an auxiliary shaft bearing cover; the elastic center comprises a main shaft center, a connecting shaft, a disc spring, a plug and a limiting cover; the tailstock center comprises a center main body, a sliding groove, a positioning pin and a spring. The power of the main shaft mechanism is provided by a lathe power source, the main shaft is driven to rotate by the belt pulley, and compared with the existing carrier roller machining lathe, the carrier roller is not subjected to radial force in the machining process, radial deviation is not easy to occur, and the problem of machining precision reduction caused by the radial force is avoided. And the periphery of the carrier roller is free from interferents, so that the moving track of the turning tool is more free, and the turning work is convenient to develop.

Description

Main shaft mechanism of special lathe for carrier roller machining
Technical Field
The utility model belongs to the technical field of special lathe makes, a main shaft mechanism of bearing roller processing special lathe is provided very much.
Background
The carrier roller is a mechanism for supporting a conveying belt or materials and is divided into a rubber carrier roller, a ceramic carrier roller, a nylon carrier roller and an insulating carrier roller according to the materials. Wherein, the coefficient is low, wear-resisting, difficult damage belt. The self-lubricating property is excellent.
The power unit of lathe that uses in the current nylon bearing roller course of working is mostly the drive wheel, behind the anchor clamps clamping bearing roller of both sides, drives the bearing roller through the attached bearing roller surface of drive wheel and rotates. In the machining process, the driving wheel can not only hinder the turning tool from feeding, but also ensure that the carrier roller has enough torque force by applying certain radial pressure to the carrier roller, and the carrier roller is easy to deflect under the action of radial force, so that the machining precision is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a main shaft mechanism of special lathe for processing carrier roller.
In order to achieve the above object, the utility model adopts the following technical scheme: a main shaft mechanism of a special lathe for supporting roller machining comprises a main shaft box assembled on one side of a lathe base, a tail platform box assembled on the other side of the lathe base, a main shaft assembly and a tail platform shaft, wherein the main shaft box and the tail platform box are coaxially arranged, the main shaft assembly is rotatably installed in the main shaft box, the tail platform shaft is axially and slidably installed in the tail platform box, and a main shaft bearing cover is fixedly installed on the side wall of the main shaft box;
the main shaft assembly comprises a main shaft, an auxiliary shaft, a belt pulley, a rotary oil cylinder, a locking nut, a chuck chair and an auxiliary shaft bearing cover, wherein the main shaft and the auxiliary shaft are hollow shafts which are axially communicated, the inner diameter of the main shaft is larger than the outer diameter of the auxiliary shaft, the main shaft is rotatably arranged in the main shaft box through a bearing, the auxiliary shaft is rotatably arranged in a pipe cavity of the main shaft through a bearing, the belt pulley is fixedly arranged on the outer wall of the main shaft, the auxiliary shaft and the belt pulley are respectively positioned at two ends of the main shaft, the rotary oil cylinder is assembled on the end surface of the belt pulley, the locking nut is screwed in the middle of the main shaft, the chuck chair is fixedly arranged at the tail end of the outer wall of the main shaft, the auxiliary shaft bearing cover is fixedly arranged on the end surface of the main shaft, the auxiliary shaft bearing cover plays a limiting role in the auxiliary shaft, the chuck chair and the auxiliary shaft bearing cover are positioned on the same side as the auxiliary shaft, and the main shaft bearing cover plays a role in clamping connection with a bearing outside the main shaft;
a tail platform oil cylinder is fixedly arranged at one end of the tail platform shaft, a tail platform shaft seat is rotatably arranged at the other end of the tail platform shaft through a bearing, and the tail platform shaft is a hollow shaft which is axially communicated;
the inner cavity of the auxiliary shaft, the end surface of the chuck chair, the inner cavity of the tail platform shaft and the end surface of the tail platform shaft seat are used for assembling the tool assembly.
Further, the tool assembly comprises a carrier roller excircle processing tool, an elastic center and a tail platform center, the two carrier roller excircle processing tools are fixedly installed on the end face of the chuck chair and the end face of the tail platform shaft seat respectively, the elastic center is assembled in the auxiliary shaft, the tip of the elastic center penetrates through the carrier roller excircle processing tool and extends to the outside, and the tail platform center is fixedly installed in the tail platform shaft.
Further, the elastic center comprises a main shaft center, a connecting shaft, a disc spring, an end cap and a limiting cover, wherein the connecting shaft is integrally formed at the tail end of the main shaft center, an annular flange is arranged at the middle part of the outer wall of the main shaft center, the limiting cover is sleeved outside the main shaft center and clamped with the annular flange, the disc spring is sleeved outside the connecting shaft, the end cap is fixedly installed at the tail end of the connecting shaft through a bolt, the outer diameter of the end cap is larger than the inner diameter of the disc spring, a necking is arranged at the tail end of an auxiliary shaft pipe cavity, the inner diameter of the necking is larger than the outer diameter of the end cap and smaller than the outer diameter of the disc spring, the main shaft center is inserted into the pipe cavity of the auxiliary shaft, and the limiting cover is fixedly installed on the end face of the auxiliary shaft through a bolt.
Furthermore, the tailstock center comprises a center main body, sliding grooves, positioning pins and springs, the tail end of the center main body is of a Morse cone structure, the sliding grooves are axially formed in the end face of the end of the top main body, the sliding grooves are distributed annularly around the end of the center main body, the positioning pins are arranged in the sliding grooves in a sliding mode, and the springs are assembled in the sliding grooves.
Furthermore, the shaft section of the inner cavity of the sliding groove is in a convex shape, and the tail end of the positioning pin is provided with a flange which can be clamped with the reducing part of the inner cavity of the sliding groove; when not receiving the exogenic action, the spring is the state of stretching, orders about the locating pin and stretches out spout to the longest state, and the pointed end of locating pin and top main part are held level this moment.
Furthermore, the tool assembly comprises pull rods and chucks, the two pull rods are respectively assembled in the inner cavity of the auxiliary shaft and the inner cavity of the tail platform shaft, and the two chucks are respectively assembled on the end face of the chuck chair and the end face of the tail platform shaft seat.
Use the utility model discloses a beneficial effect is:
1. the power of the main shaft mechanism is provided by a lathe power source, the main shaft is driven to rotate through the belt pulley, and compared with an existing carrier roller machining lathe, the carrier roller is not subjected to radial force in the machining process, radial deviation is not prone to occurring, and the problem that machining precision is reduced due to the fact that the carrier roller is not prone to occurring is solved. Interference objects do not exist on the periphery of the carrier roller, so that the moving track of a turning tool is more free, and turning work is conveniently carried out;
2. the elastic center and the tailstock center of the main shaft mechanism have good centering effect, and the machining precision of the turning machining of the carrier roller is further ensured;
3. the structure characteristic of the main shaft mechanism is closer to that of a conventional lathe, the chuck and other conventional lathe fixtures can be replaced, and the universality of the lathe provided with the main shaft mechanism is improved.
Drawings
Fig. 1 is a top view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is a schematic structural view of the spindle assembly of the present invention;
FIG. 4 is a cross-sectional view of the first embodiment of the present invention taken at the horizontal plane of the shaft center;
fig. 5 is a schematic structural view of a spindle assembly according to a first embodiment of the present invention;
fig. 6 is a right side isometric view of a live center and a tailstock center of a first embodiment of the present invention;
fig. 7 is a left side isometric view of a live center and a tailstock center of a first embodiment of the present invention;
fig. 8 is a schematic structural view of a spindle assembly, a pull rod and a chuck according to a second embodiment of the present invention.
The reference numerals include: 1-a main spindle box; 101-a main shaft bearing cap; 2-a tail platform box; 3-a spindle assembly; 301-a main shaft; 302-secondary shaft; 303-a pulley; 304-a rotary cylinder; 305-a lock nut; 306-a cartridge chair; 307-countershaft bearing caps; 4-a tail table shaft; 5-tail platform shaft seat; 6-a tail platform oil cylinder; 7-processing tooling of the excircle of the carrier roller; 8-elastic center; 801-main shaft center; 802-a connecting shaft; 803-disc spring; 804-plug; 805-limit cap; 9-tailstock centre; 901-the tip body; 902-a chute; 903-positioning pin; 904-spring; 10-a pull rod; 11-a chuck; 12-a bearing; a, supporting rollers.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Example one
Referring to fig. 1-7, a spindle mechanism of a special lathe for carrier roller machining comprises a spindle box 1 assembled on one side of a lathe base, a tail platform box 2 assembled on the other side of the lathe base, a spindle assembly 3 and a tail platform shaft 4, wherein the spindle box 1 and the tail platform box 2 are coaxially arranged, the spindle assembly 3 is rotatably installed in the spindle box 1, the tail platform shaft 4 is axially and slidably installed in the tail platform box 2, and a spindle bearing cover 101 is fixedly installed on the side wall of the spindle box 1;
the main spindle box 1 is fixedly connected with a lathe base, and the tail platform box 2 is connected with a horizontal displacement component (usually a saddle mechanism or a lead screw mechanism) on the lathe base.
The main shaft assembly 3 comprises a main shaft 301, a counter shaft 302, a belt pulley 303, a rotary oil cylinder 304, a lock nut 305, a chuck chair 306 and a counter shaft bearing cover 307, wherein the main shaft 301 and the counter shaft 302 are hollow shafts which are axially communicated, the inner diameter of the main shaft 301 is larger than the outer diameter of the counter shaft 302, the main shaft 301 is rotatably installed in the main shaft box 1 through a bearing 12, the counter shaft 302 is rotatably installed in a pipe cavity of the main shaft 301 through the bearing 12, the belt pulley 303 is fixedly installed on the outer wall of the main shaft 301, the counter shaft 302 and the belt pulley 303 are respectively positioned at two ends of the main shaft 301, the rotary oil cylinder 304 is assembled on the end surface of the belt pulley 303, the lock nut 305 is screwed in the middle of the main shaft 301, the chuck chair 306 is fixedly installed at the tail end of the outer wall of the main shaft 301, the counter shaft bearing cover 307 is fixedly installed on the end surface of the main shaft 301, the counter shaft bearing cover 307 plays a limiting role in the chuck chair 306 and the counter shaft bearing cover 307 is positioned on the same side as the counter shaft 302, and the main shaft bearing cover 101 plays a clamping role in the bearing outside of the main shaft 301;
a power mechanism of the lathe drives the spindle assembly 3 to rotate through a belt wheel 303;
a tail platform oil cylinder 6 is fixedly arranged at one end of the tail platform shaft 4, a tail platform shaft seat 5 is rotatably arranged at the other end of the tail platform shaft 4 through a bearing, and the tail platform shaft 4 is a hollow shaft which is axially penetrated;
the inner cavity of the auxiliary shaft 302, the end surface of the chuck chair 306, the inner cavity of the tail platform shaft 4 and the end surface of the tail platform shaft seat 5 are used for assembling tool components.
The tool assembly comprises a carrier roller excircle processing tool 7, an elastic center 8 and a tail platform center 9, wherein the two carrier roller excircle processing tools 7 are fixedly installed on the end face of the chuck chair 306 and the end face of the tail platform shaft seat 5 respectively, the elastic center 8 is assembled in the auxiliary shaft 302, the tip of the elastic center 8 penetrates through the carrier roller excircle processing tool 7 and extends to the outside, and the tail platform center 9 is fixedly installed in the tail platform shaft 4.
The working face of the carrier roller excircle processing tool 7 is in a ring shape, the inner diameter and the outer diameter of the ring are matched with the inner diameter and the outer diameter of the outer skin of the carrier roller a, and springs are arranged at the joints of the carrier roller excircle processing tool 7, the chuck chair 306 and the tail platform shaft seat 5.
The elastic center 8 comprises a main shaft center 801, a connecting shaft 802, a disc spring 803, a plug 804 and a limiting cover 805, wherein the connecting shaft 802 is integrally formed at the tail end of the main shaft center 801, an annular flange is arranged in the middle of the outer wall of the main shaft center 801, the limiting cover 805 is sleeved outside the main shaft center 801 and clamped with the annular flange, the disc spring 803 is sleeved outside the connecting shaft 802, the plug 804 is fixedly installed at the tail end of the connecting shaft 802 through bolts, the outer diameter of the plug 804 is larger than the inner diameter of the disc spring 803, a throat is arranged at the tail end of a cavity of the auxiliary shaft 302, the inner diameter of the throat is larger than the outer diameter of the plug 804 and smaller than the outer diameter of the disc spring 803, the main shaft center 801 is inserted into the cavity of the auxiliary shaft 302, and the limiting cover 805 is fixedly installed on the end face of the auxiliary shaft 302 through bolts.
The tailstock center 9 comprises a center main body 901, sliding grooves 902, a positioning pin 903 and a spring 904, the tail end of the center main body 901 is of a Morse cone structure, the sliding grooves 902 are axially formed in the end face of the end of the tip end of the center main body 901, the sliding grooves 902 are annularly distributed around the tip end of the center main body 901, the positioning pin 903 is arranged in each sliding groove 902 in a sliding mode, and the spring 904 is assembled in each sliding groove 902.
The shaft section of the inner cavity of the sliding chute 902 is in a convex shape, and the tail end of the positioning pin 903 is provided with a flange which can be clamped with the reducing part of the inner cavity of the sliding chute 902; when not subjected to external force, the spring 904 is in an extended state, and drives the positioning pin 903 to extend out of the sliding groove 902 to the longest state, and the tip of the positioning pin 903 is flush with the tip of the tip main body 901.
The tips of the elastic center 8 and the tailstock center 9 respectively abut against the central positions of two end faces of the mandrel of the carrier roller a (grooves are preset in the central positions of the two end faces of the mandrel of the carrier roller a), so that a centering effect is achieved; and a positioning pin 903 of the tailstock center 9 props against the periphery of the mandrel of the carrier roller a or the inner ring of a bearing at the periphery of the mandrel of the carrier roller a, so that the mandrel of the carrier roller a is fixed.
When the device is used, a worker places a carrier roller a to be processed between a spindle box 1 and a tailstock box 2, and pushes a mandrel at one end of the carrier roller a to the tip of an elastic center 8, a tailstock oil cylinder 6 is controlled to push a tailstock shaft 4 to axially translate, the tip of a tailstock center 9 contacts the mandrel at the other end of the carrier roller a, and primary positioning of the carrier roller a is completed; at the moment, the tips of the elastic center 8 and the tailstock center 9 are respectively embedded into the preset grooves in the central positions of the two end faces of the mandrel of the carrier roller a, the tip of the positioning pin 903 abuts against the periphery of the mandrel of the carrier roller a or the bearing inner ring on the periphery of the mandrel of the carrier roller a, the spring 904 is compressed, namely the mandrel of the carrier roller a is fixed by the positioning pin 903, and the two end faces of the outer skin of the carrier roller a are respectively contacted with the annular working faces of the outer circle machining tools 7 of the carrier rollers on the two sides.
And controlling the tail platform oil cylinder 6 to continuously push the tail platform shaft 4 to axially translate, compressing springs at the assembly surface of the carrier roller excircle processing tool 7, extruding the end surface of the carrier roller a outer skin by the carrier roller excircle processing tools 7 on two sides, simultaneously extruding the disc springs 803 under the pressure action by the elastic centers 8, and controlling the tail platform oil cylinder 6 to stop propelling until the friction force between the carrier roller excircle processing tools 7 on two sides and the end surface of the carrier roller a outer skin is enough to fix the carrier roller a, thereby completing the clamping and fixing of the carrier roller a.
In the machining process, a lathe power assembly drives a main shaft 301 to rotate, the main shaft 301 drives a skin of a carrier roller a and a carrier roller excircle machining tool 7 of a tail table box 2 to rotate through the carrier roller excircle machining tool 7, the tail table shaft 4 is fixed in the tail table box 2, so that the tail table top 9 is in a fixed state, a mandrel of the carrier roller a is fixed under the clamping of the tail table top 9, under the premise that the mandrel is fixed, an elastic top 8 on one side of the main shaft box 1 is also fixed, namely when the main shaft 301 and the carrier roller a skin rotate, the tail table shaft 4 is fixed, the carrier roller excircle machining tool 7 on one side of the tail table box 2 rotates around the tail table shaft 4 under the action of a bearing, the mandrel of the carrier roller a is fixed under the action of the tail table top 9, the elastic top 8 is fixed along with the mandrel, and the carrier roller excircle machining tool 7 on one side of the main shaft box 1 rotates under the action of a bearing.
Example two
Referring to fig. 1, 2, 3 and 8, the spindle box comprises a spindle box 1 assembled on one side of a lathe base, a tail platform box 2 assembled on the other side of the lathe base, a spindle assembly 3 and a tail platform shaft 4, wherein the spindle box 1 and the tail platform box 2 are coaxially arranged, the spindle assembly 3 is rotatably installed in the spindle box 1, the tail platform shaft 4 is axially and slidably installed in the tail platform box 2, and a spindle bearing cover 101 is fixedly installed on the side wall of the spindle box 1;
the main shaft assembly 3 comprises a main shaft 301, a counter shaft 302, a belt pulley 303, a rotary oil cylinder 304, a lock nut 305, a chuck chair 306 and a counter shaft bearing cover 307, wherein the main shaft 301 and the counter shaft 302 are hollow shafts which are axially communicated, the inner diameter of the main shaft 301 is larger than the outer diameter of the counter shaft 302, the main shaft 301 is rotatably installed in the main shaft box 1 through a bearing 12, the counter shaft 302 is rotatably installed in a pipe cavity of the main shaft 301 through the bearing 12, the belt pulley 303 is fixedly installed on the outer wall of the main shaft 301, the counter shaft 302 and the belt pulley 303 are respectively positioned at two ends of the main shaft 301, the rotary oil cylinder 304 is assembled on the end surface of the belt pulley 303, the lock nut 305 is screwed in the middle of the main shaft 301, the chuck chair 306 is fixedly installed at the tail end of the outer wall of the main shaft 301, the counter shaft bearing cover 307 is fixedly installed on the end surface of the main shaft 301, the counter shaft bearing cover 307 plays a limiting role in the chuck chair 306 and the counter shaft bearing cover 307 is positioned on the same side as the counter shaft 302, and the main shaft bearing cover 101 plays a clamping role in the bearing outside of the main shaft 301;
a tail platform oil cylinder 6 is fixedly arranged at one end of the tail platform shaft 4, a tail platform shaft seat 5 is rotatably arranged at the other end of the tail platform shaft 4 through a bearing, and the tail platform shaft 4 is a hollow shaft which is axially penetrated;
the inner cavity of the auxiliary shaft 302, the end surface of the chuck chair 306, the inner cavity of the tail platform shaft 4 and the end surface of the tail platform shaft seat 5 are used for assembling tool components.
The tool assembly comprises pull rods 10 and chucks 11, wherein the two pull rods 10 are respectively assembled in an inner cavity of the auxiliary shaft 302 and an inner cavity of the tail platform shaft 4, and the two chucks 11 are respectively assembled on the end face of the chuck chair 306 and the end face of the tail platform shaft seat 5.
When a factory has no carrier roller a machining service or needs to machine the outer skin of the carrier roller a, workers can remove clamps such as a carrier roller outer circle machining tool 7, an elastic center 8, a tailstock center 9 and the like and replace the clamps with a pull rod 10, a chuck 11 or other clamps for a lathe, so that the spindle mechanism has universality.
The foregoing is only a preferred embodiment of the present invention, and many changes can be made in the detailed description and the application range according to the idea of the present invention by those skilled in the art, which all fall within the protection scope of the present invention as long as the changes do not depart from the concept of the present invention.

Claims (6)

1. The utility model provides a bearing roller processing special lathe's main shaft mechanism which characterized in that: the lathe comprises a main shaft box assembled on one side of a lathe base, a tail platform box assembled on the other side of the lathe base, a main shaft assembly and a tail platform shaft, wherein the main shaft box and the tail platform box are coaxially arranged, the main shaft assembly is rotatably arranged in the main shaft box, the tail platform shaft is axially and slidably arranged in the tail platform box, and a main shaft bearing cover is fixedly arranged on the side wall of the main shaft box;
the main shaft assembly comprises a main shaft, an auxiliary shaft, a belt pulley, a rotary oil cylinder, a locking nut, a chuck chair and an auxiliary shaft bearing cover, wherein the main shaft and the auxiliary shaft are hollow shafts which are axially communicated, the inner diameter of the main shaft is larger than the outer diameter of the auxiliary shaft, the main shaft is rotatably arranged in the main shaft box through a bearing, the auxiliary shaft is rotatably arranged in a pipe cavity of the main shaft through a bearing, the belt pulley is fixedly arranged on the outer wall of the main shaft, the auxiliary shaft and the belt pulley are respectively positioned at two ends of the main shaft, the rotary oil cylinder is assembled on the end surface of the belt pulley, the locking nut is screwed in the middle of the main shaft, the chuck chair is fixedly arranged at the tail end of the outer wall of the main shaft, the auxiliary shaft bearing cover is fixedly arranged on the end surface of the main shaft, the auxiliary shaft bearing cover plays a limiting role in the auxiliary shaft, the chuck chair and the auxiliary shaft bearing cover are positioned on the same side as the auxiliary shaft, and the main shaft bearing cover plays a role in clamping connection with a bearing outside the main shaft;
a tail platform oil cylinder is fixedly arranged at one end of the tail platform shaft, a tail platform shaft seat is rotatably arranged at the other end of the tail platform shaft through a bearing, and the tail platform shaft is a hollow shaft which is axially communicated;
the inner cavity of the auxiliary shaft, the end face of the chuck chair, the inner cavity of the tail platform shaft and the end face of the tail platform shaft seat are used for assembling the tool assembly.
2. The spindle mechanism of the special lathe for supporting roller processing as claimed in claim 1, wherein: the tool assembly comprises a carrier roller excircle processing tool, an elastic center and a tail platform center, the two carrier roller excircle processing tools are fixedly installed on the end face of the chuck chair and the end face of the tail platform shaft seat respectively, the elastic center is assembled in the auxiliary shaft, the tip of the elastic center penetrates through the carrier roller excircle processing tool and extends to the outside, and the tail platform center is fixedly installed in the tail platform shaft.
3. The spindle mechanism of a special lathe for back-up roll machining as claimed in claim 2, wherein: the elastic center comprises a main shaft center, a connecting shaft, a disc spring, a plug and a limiting cover, the connecting shaft is integrally formed at the tail end of the main shaft center, an annular flange is arranged at the middle part of the outer wall of the main shaft center, the limiting cover is sleeved outside the main shaft center and clamped with the annular flange, the disc spring is sleeved outside the connecting shaft, the plug is fixedly installed at the tail end of the connecting shaft through a bolt, the outer diameter of the plug is larger than the inner diameter of the disc spring, the tail end of an auxiliary shaft pipe cavity is provided with a necking, the inner diameter of the necking is larger than the outer diameter of the plug and smaller than the outer diameter of the disc spring, the main shaft center is inserted into the pipe cavity of the auxiliary shaft, and the limiting cover is fixedly installed on the end face of the auxiliary shaft through the bolt.
4. The spindle mechanism of the special lathe for supporting roller processing as claimed in claim 2, wherein: the tailstock center comprises a center main body, sliding grooves, positioning pins and springs, the tail end of the center main body is of a Morse cone structure, the sliding grooves are axially formed in the end face of the end, on the side of the tip end of the center main body, the sliding grooves are distributed annularly around the tip end of the center main body, the positioning pins are arranged in the sliding grooves in a sliding mode, and the springs are assembled in the sliding grooves.
5. The spindle mechanism of the special lathe for supporting roller processing as claimed in claim 4, wherein: the shaft section of the inner cavity of the sliding chute is in a convex shape, and the tail end of the positioning pin is provided with a flange which can be clamped with the reducing part of the inner cavity of the sliding chute; when not receiving the exogenic action, the spring is the state of stretching, orders about the locating pin and stretches out spout to the longest state, and the pointed end of locating pin and top main part are held level this moment.
6. The spindle mechanism of a special lathe for back-up roll machining as claimed in claim 1, wherein: the tool assembly comprises pull rods and chucks, the two pull rods are respectively assembled in an inner cavity of the auxiliary shaft and an inner cavity of the tail platform shaft, and the two chucks are respectively assembled on the end face of the chuck chair and the end face of the tail platform shaft seat.
CN202221836753.2U 2022-07-18 2022-07-18 Main shaft mechanism of special lathe for carrier roller machining Active CN217727158U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221836753.2U CN217727158U (en) 2022-07-18 2022-07-18 Main shaft mechanism of special lathe for carrier roller machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221836753.2U CN217727158U (en) 2022-07-18 2022-07-18 Main shaft mechanism of special lathe for carrier roller machining

Publications (1)

Publication Number Publication Date
CN217727158U true CN217727158U (en) 2022-11-04

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ID=83849680

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221836753.2U Active CN217727158U (en) 2022-07-18 2022-07-18 Main shaft mechanism of special lathe for carrier roller machining

Country Status (1)

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CN (1) CN217727158U (en)

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