CN221232002U - Follower rest and long shaft machining equipment - Google Patents

Abstract

The utility model belongs to the field of machining equipment, and provides a follower rest and long shaft machining equipment, wherein the follower rest comprises a follower rest body, a clamping part and an adjusting part; the follower rest body is provided with an installation space; the clamping part is rotatably arranged in the installation space and is provided with a positioning hole matched with a workpiece to be machined; the adjusting piece is connected with the clamping component and is used for changing the cross section area of the positioning hole. According to the embodiment of the utility model, the workpiece to be machined is clamped by the clamping component, the small-diameter workpiece to be machined can be clamped by the positioning hole of the clamping component, and the turning of the small-diameter workpiece to be machined can be realized under the synchronous rotation of the clamping component and the workpiece to be machined.

Description

Follower rest and long shaft machining equipment

Technical Field

The utility model relates to the field of machining equipment, in particular to a follower rest and long shaft machining equipment.

Background

When the ratio of the length to the diameter of the workpiece is greater than 10 times, the workpiece is referred to as an elongated shaft. In the lathe processing of an slender shaft, the slender shaft has poor rigidity, and the slender shaft is easy to generate phenomena such as thermal deformation, stress bending and the like in the lathe processing, so that a follower rest is an indispensable machine tool accessory in the processing of the slender shaft.

The follower rest is an auxiliary device for radially supporting the rotary workpiece, and the follower rest has the main function of reinforcing the cutting stability of the slender shaft workpiece, and can stably support the excircle of the workpiece in the cutting process so as to prevent tremble. However, the existing follower rest can only process the slender shaft with the diameter below 10mm, and can not realize the turning of the slender shaft with the small diameter (phi below 10 mm).

Disclosure of utility model

The utility model provides a follower rest and long shaft machining equipment, which are used for solving the defect that the machining of a small-diameter long shaft cannot be realized in the prior art.

The utility model provides a follower rest comprising:

The follow rest body is provided with an installation space;

The clamping part is rotationally arranged in the installation space and is provided with a positioning hole matched with a workpiece to be machined;

And the adjusting piece is connected with the clamping part and used for changing the cross section area of the positioning hole.

According to an embodiment of the present utility model, there is provided a follower rest, the clamping member including:

the clamping piece is provided with the positioning hole;

And the fixed sleeve is sleeved on the clamping piece and is rotationally arranged in the installation space.

According to the follower rest provided by the embodiment of the utility model, the first end of the clamping piece is provided with the connecting part, the second end of the clamping piece is provided with the first conical part, and the first conical part is provided with at least one notch along the radial direction;

the adjusting piece is connected to the connecting part and abuts against the fixing sleeve.

According to an embodiment of the present utility model, the connecting portion includes an external thread, and the adjusting member has an internal thread adapted to the external thread.

According to the follower rest provided by the embodiment of the utility model, the outer surface of the clamping piece is provided with the first positioning part, and the inner surface of the fixed sleeve is provided with the second positioning part matched with the first positioning part.

According to the follower rest provided by the embodiment of the utility model, the inner surface of the clamping piece is provided with the protective layer.

According to an embodiment of the present utility model, there is provided a follower rest, further comprising:

And the locking piece is suitable for locking the fixed sleeve and the adjusting piece.

According to an embodiment of the present utility model, there is provided a follower rest further comprising a bearing member, the bearing member comprising:

The bearing, fixed sleeve pass through the bearing set up in the installation space.

According to an embodiment of the present utility model, there is provided a follower rest, the bearing member further comprising:

And the bearing gland is connected with the follower rest body and is used for limiting the axial direction of the bearing.

The utility model also provides a long shaft processing device, comprising: a machine tool, a work assembly and a follower rest as defined in any one of the preceding claims;

The follower rest body and the working assembly are both arranged on the machine tool.

According to the follower rest and the long shaft machining equipment provided by the embodiment of the utility model, the workpiece to be machined is clamped by the clamping part, the small-diameter workpiece to be machined can be clamped by the positioning hole of the clamping part, and the small-diameter workpiece to be machined can be machined under the synchronous rotation of the clamping part and the workpiece to be machined.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a follower rest according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a follower rest provided by an embodiment of the utility model;

FIG. 3 is an exploded view of a follower rest provided in an embodiment of the present utility model;

FIG. 4 is a schematic view of a clamping member according to an embodiment of the present utility model;

FIG. 5 is a second schematic view of a clamping member according to an embodiment of the present utility model;

FIG. 6 is a third schematic view of a clamping member according to an embodiment of the present utility model;

FIG. 7 is a schematic structural view of a clamping member according to an embodiment of the present utility model;

fig. 8 is a schematic structural diagram of a long shaft processing apparatus according to an embodiment of the present utility model.

Reference numerals:

1. A machine tool; 2. a working assembly; 3. a follower rest; 4. a workpiece to be machined; 5. a clamp assembly; 6. a moving assembly;

31. A follower rest body; 311. an installation space; 312. a first annular mounting portion;

32. A clamping member; 320. positioning holes; 321. a clamping member; 3211. a connection part; 3212. a first tapered portion; 3213. a first positioning portion; 3214. a protective layer; 3215. a notch; 322. a fixed sleeve; 3221. a second annular mounting portion; 3222. a second taper; 3223. a second positioning portion; 3224. an annular protrusion; 323. an adjusting member; 324. a locking member;

33. a bearing; 34. a bearing gland; 35. and (5) pressing the screw.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

A follower rest and a long axis machining apparatus according to an embodiment of the present utility model are described below with reference to fig. 1 to 8.

An embodiment of the first aspect of the present utility model proposes a follower rest, fig. 1 illustrates a schematic structural diagram of the follower rest provided by the embodiment of the present utility model, fig. 2 illustrates a schematic sectional diagram of the follower rest provided by the embodiment of the present utility model, fig. 3 illustrates an exploded schematic diagram of the follower rest provided by the embodiment of the present utility model, and as shown in fig. 1 to 3, the follower rest includes a follower rest body 31, a clamping member 32 and an adjusting member 323.

Wherein, the follower rest body 31 is formed with an installation space 311, the clamping part 32 is rotatably arranged in the installation space 311, and the clamping part 32 is provided with a positioning hole 320 adapted to the workpiece 4 to be processed; an adjusting member 323 is connected to the holding member 32, and the adjusting member 323 is used to change the cross-sectional area of the positioning hole 320.

It will be appreciated that when the workpiece 4 is to be machined, the workpiece 4 is mounted in the positioning hole 320 of the clamping member 32, and the clamping member 32 and the workpiece 4 move synchronously, so that turning of the workpiece 4 can be achieved.

The conventional follower rest includes a plurality of support claws arranged circumferentially, the work piece 4 is supported by the end surfaces of the plurality of support claws, and the end surfaces of the plurality of support claws form a support space which can only hold an elongated shaft having a diameter of 10mm or more due to the limitation of the end surface dimensions of the support claws. The workpiece 4 to be processed is clamped through the positioning holes 320 of the clamping component 32, and the positioning holes 320 can be correspondingly designed according to the size of the workpiece 4 to be processed, so that the clamping of the slender shaft with the diameter below 10mm can be realized.

It can be understood that when the workpiece 4 is a blank and a plurality of blanks of the same size are processed, there is a processing error between each blank, and if the positioning hole 320 of the clamping member 32 is of a fixed size, there is a problem that the workpiece 4 and the clamping member 32 are blocked due to oversized workpiece 4, or the workpiece 4 is undersized, so that the gap between the workpiece 4 and the clamping member 32 is too large, thereby affecting the processing precision. In this embodiment, the cross-sectional area of the positioning hole 320 is changed by the adjusting member 323, so that the workpiece 4 to be processed can be accurately clamped, and the processing precision is improved.

The follower rest provided by the embodiment of the utility model clamps the workpiece 4 to be machined through the clamping part 32, the positioning hole 320 of the clamping part 32 can realize the clamping of the workpiece 4 to be machined with small diameter, and the turning of the workpiece 4 to be machined with small diameter can be realized under the synchronous rotation of the clamping part 32 and the workpiece 4 to be machined,

In the conventional follower rest 3, the cutting force of the tool nose is easy to cause the slender shaft workpiece to deform greatly, so that the surface quality and precision of the machined workpiece are low. In the application, the adjusting piece 323 is used for changing the cross section area of the positioning hole 320, so that the precision clamping of the workpiece 4 to be processed is realized, and the high-speed and high-precision processing of the small-diameter slender shaft is realized.

The follower rest 3 of this embodiment may be used for a general horizontal lathe, a flat bed numerical control lathe, or the like. Wherein, the carriage position in the machine tool 1 is provided with a reserved follower rest mounting hole, if no follower rest mounting hole is reserved, the drill can be matched according to the actual position.

It should be noted that, the follower rest 3 of the embodiment can replace a core walking machine, so that the processing cost can be saved; the structure of the clamping member 321 can be interchanged with the guide sleeve of the heart-moving machine.

In one embodiment of the present utility model, the cross section of the positioning hole 320 is any one of a circle, a rectangle, an ellipse, and a polygon.

In the prior art, the workpiece 4 is supported by the end surfaces of the plurality of support claws, and when the workpiece 4 is processed, the limitation of the end surfaces of the plurality of support claws is only suitable for processing cylindrical blanks, and square and hexagonal blanks cannot be processed. The workpiece 4 is clamped by the positioning holes 320 of the clamping component 32, and the positioning holes 320 can be correspondingly designed according to the size of the workpiece 4, such as a round shape, a square shape or a hexagonal shape, so that turning of round bar stock, hexagonal bar stock, square bar stock and other bar stocks (the clamping component 321 can be adapted according to the shape of the material) can be realized.

In one embodiment of the present utility model, fig. 4 illustrates one of the schematic structural diagrams of the clamping member provided by the embodiment of the present utility model, fig. 5 illustrates the second schematic structural diagram of the clamping member provided by the embodiment of the present utility model, fig. 6 illustrates the third schematic structural diagram of the clamping member provided by the embodiment of the present utility model, and as shown in fig. 2 to 6, the clamping member 32 includes a clamping piece 321 and a fixing sleeve 322, the clamping piece 321 is provided with a positioning hole 320, and the fixing sleeve 322 is sleeved on the clamping piece 321 and is rotatably disposed in the installation space 311.

It will be appreciated that the clamping member 321 is used for clamping the workpiece 4 to be machined, the fixing sleeve 322 is sleeved on the clamping member 321, and when the workpiece 4 to be machined is machined, the workpiece 4 to be machined is driven to rotate, and the clamping member 321 and the fixing sleeve 322 on the workpiece 4 to be machined synchronously rotate, so that the fixing sleeve 322 is rotatably installed in the installation space 311 of the follower rest body 31.

It should be noted that, the clamping member 32 includes two parts, that is, the clamping member 321 and the fixing sleeve 322, and the clamping member 321 and the fixing sleeve 322 may be detachably assembled, so that the clamping members 321 with different specifications may be selected as required. The clamping members 321 of different specifications may be different sizes or shapes of the positioning holes 320, for example, the positioning holes 320 are circular or square clamping members 321, or the positioning holes 320 are circular clamping members 321 with different apertures.

According to the follower rest provided by the embodiment of the utility model, the clamping part 32 comprises the clamping piece 321 and the fixing sleeve 322, and the clamping pieces 321 with different specifications can be matched according to requirements, so that the universality of the follower rest is improved.

According to the follower rest of the present utility model, in order to realize the change of the cross-sectional area of the positioning hole 320 of the clamping member 321, the clamping member 321 may be designed as a collet chuck structure, the tapered head of the collet chuck is formed with the positioning hole 320, and the tapered head is pressed by the adjusting member 323 to change the taper of the tapered head, thereby changing the cross-sectional area of the positioning hole 320.

It can be appreciated that fig. 7 illustrates a schematic structural diagram of a clamping member according to an embodiment of the present utility model, as shown in fig. 7, a first end of the clamping member 321 has a connecting portion 3211, a second end of the clamping member 321 has a first tapered portion 3212, the first tapered portion 3212 is provided with at least one notch 3215 along a radial direction, and the adjusting member 323 is connected to the connecting portion 3211 and abuts against the fixing sleeve 322.

It can be understood that the second end of the clamping member 321 corresponds to a taper head, the second end of the clamping member 321 is used for clamping the workpiece 4 to be machined, the adjusting member 323 can abut against the first end face of the fixed sleeve 322, the fixed sleeve 322 is axially moved by the adjusting member 323 and is moved along the first end of the clamping member 321 towards the second end of the clamping member 321, so that the second end face of the fixed sleeve 322 presses the second end of the clamping member 321, thereby reducing the taper of the first taper portion 3212 of the clamping member 321 and further reducing the cross-sectional area of the positioning hole 320; correspondingly, the fixing sleeve 322 is moved along the second end of the clamping member 321 towards the first end of the clamping member 321 by the adjusting member 323, so as to increase the taper of the first tapered portion 3212 of the clamping member 321 and further increase the cross-sectional area of the positioning hole 320.

It will be appreciated that the second end of the fixing sleeve 322 has a second tapered portion 3222 which mates with the second end first tapered portion 3212 of the clamping member 321, and that the change in cross-sectional area of the locating hole 320 is achieved by the cooperation of the second tapered portion 3222 and the first tapered portion 3212.

It will be appreciated that, as shown in fig. 5, the first end of the fixing sleeve 322 is provided with a second annular mounting portion 3221, the adjusting member 323 is connected to the connecting portion 3211 and is located on the second annular mounting portion 3221, and the adjusting member 323 abuts against an end surface of the second annular mounting portion 3221.

In a preferred embodiment of the present utility model, the connection portion 3211 includes external threads and the adjusting member 323 has internal threads adapted to the external threads.

It is understood that the adjusting member 323 may be a lock nut, and the fixing sleeve 322 is moved in the axial direction by rotating the lock nut to change the cross-sectional area of the positioning hole 320.

It should be noted that, the adjusting member 323 may also be an adjusting screw, the adjusting screw may be a plurality of adjusting screws arranged circumferentially along the clamping member 321, the adjusting screw is disposed through the fixing sleeve 322, and the end portion abuts against the outer surface of the second end of the clamping member 321, and the taper of the first tapered portion 3212 of the clamping member 321 is changed by rotating the adjusting screw, so as to change the cross-sectional area of the positioning hole 320.

In one embodiment of the present utility model, the follower rest further comprises a rotating member for driving the lock nut to rotate, and in this embodiment, the rotating member may be a wrench.

In a preferred embodiment of the present utility model, the outer surface of the clamping member 321 is provided with a first positioning portion 3213, and the inner surface of the fixing sleeve 322 is provided with a second positioning portion 3223 adapted to the first positioning portion 3213.

It can be understood that the clamping member 321 and the fixing sleeve 322 need to rotate coaxially and can move relatively along the circumferential direction, and then the first positioning portion 3213 is a groove axially formed on the outer surface of the clamping member 321, the second positioning portion 3223 is a protrusion axially formed on the inner surface of the fixing sleeve 322, or the first positioning portion 3213 is a protrusion, and the second positioning portion 3223 is a groove.

It should be noted that, the clamping member 321 and the fixing sleeve 322 may also adopt a key connection manner, the first positioning portion 3213 and the second positioning portion 3223 are both grooves, and an adapted positioning shaft is disposed between the two grooves.

In a preferred embodiment of the present utility model, as shown in fig. 7, the inner surface of the holder 321 is provided with a protective layer 3214.

It can be understood that, in order to avoid the damage of the clamping member 321 to the outer surface of the workpiece 4, a protective layer 3214 is provided on the inner surface of the clamping member 321, and in this embodiment, a protective layer 3214 is provided on the inner surface of the second end of the clamping member 321. The protective layer 3214 may be formed of a wear-resistant material.

In a preferred embodiment of the utility model, the follower rest further comprises a locking member 324, as shown in fig. 1 and 3, the locking member 324 being adapted to lock the fixing sleeve 322 and the adjusting member 323.

It will be appreciated that the axial movement of the fixing sleeve 322 is avoided during turning of the workpiece 4, thereby affecting the machining accuracy, and the fixing sleeve 322 and the adjusting member 323 are locked by the locking member 324 in this embodiment.

In a preferred embodiment of the present utility model, the clamping member 32 is rotatably provided in the mounting space 311 by a bearing member including a bearing 33, and the fixing sleeve 322 is provided in the mounting space 311 by the bearing 33.

It will be appreciated that the follower rest body 31 is provided with a first annular mounting portion 312, and the bearing 33 is mounted on the first annular mounting portion 312 and sleeved on the outer circumferential surface of the fixing sleeve 322.

In the embodiment of the utility model, the number of the bearings 33 is two at intervals, the outer circular surface of the fixed sleeve 322 is provided with the annular protrusion 3224, and the annular protrusion 3224 is positioned between the two bearings 33 and used for axially limiting the bearings 33.

In a preferred embodiment of the utility model, the bearing means further comprises a bearing gland 34, the bearing gland 34 being connected to the follower block body 31, the bearing gland 34 being used for axial limitation of the bearing 33.

It will be appreciated that the first annular mounting portion 312 is an annular gap and the bearing cover 34 is attached to the follower holder body 31, the side of the first annular mounting portion 312 and the bearing cover 34 being used for axial retention of the bearing 33.

It will be appreciated that the bearing gland 34 is mounted to the follower block body 31 by gland screws 35.

The use process of the follower rest comprises the following steps:

firstly, checking the straightness and size consistency of the workpiece 4 (blank),

It can be appreciated that the follower rest 3 of this embodiment may be suitable for processing a workpiece 4 (blank) to be processed having a straightness and a consistency of from head to tail within 0.02mm, so as to avoid the phenomenon that the gap between the workpiece 4 and the clamping member 321 is too small during processing, resulting in jamming between the workpiece 4 and the clamping member 321, or that the gap between the workpiece 4 and the clamping member 321 is too large, which affects the processing precision.

Next, the follower rest 3 is mounted.

It can be understood that the follower rest 3 is mounted on a reserved follower rest mounting position of the machine tool 1 through a locking screw, the parallelism between the follower rest 3 and the middle carriage is adjusted by striking a surface, the parallelism is adjusted to be within 0.01mm, and the mounting screw is locked. Wherein the middle carriage is a part of the machine tool 1 for mounting the follower rest 3.

Thirdly, selecting a clamping piece 321 with a corresponding size according to the size of the workpiece 4 to be machined.

It will be appreciated that the clamping member 321 corresponding to the size of the positioning hole 320 is selected according to the size of the workpiece 4 to be processed.

Fourth, the clearance between the clamping piece 321 and the workpiece 4 to be processed is adjusted.

It will be appreciated that by rotating the adjustment member 323 to move the fixing sleeve 322, the gap between the clamping member 321 and the workpiece 4 is adjusted, and the gap is adjusted to be slightly resistant to sliding of the workpiece 4 by the clamping member 321, but smooth sliding is optimal.

Fifthly, clamping the to-be-machined piece 4 for preparing machining.

It will be appreciated that one end of the workpiece 4 is clamped to the machine tool 1 for turning the workpiece 4.

It should be noted that, the existing follower rest 3 is difficult to ensure straightness, roundness and deformation, so that the slender shaft machined by the lathe is easy to deform, the dimensional tolerance of the surface finish is difficult to control, and especially, the slender shaft with the diameter of less than 10mm and the length-diameter ratio of more than 10 times of the diameter is machined. The follower rest of the embodiment can replace a centering machine to finish the processing of the slender shaft, and the roundness and the coaxiality of each step can be within 0.01.

An embodiment of the second aspect of the present utility model proposes a long shaft machining apparatus, fig. 8 illustrates a schematic structural diagram of the long shaft machining apparatus provided by the embodiment of the present utility model, and as shown in fig. 8, the long shaft machining apparatus includes a machine tool 1, a working assembly 2, and a follower rest 3 provided by any of the foregoing embodiments, where the follower rest body 31 and the working assembly 2 are both disposed on the machine tool 1.

It will be appreciated that the follower rest body 31 and the working assembly 2 are both disposed on the machine tool 1, the machine tool 1 is provided with a clamp assembly 5, one end of the workpiece 4 to be machined is mounted on the clamp assembly 5, the other end of the workpiece 4 to be machined is clamped in the positioning hole 320 of the clamping piece 321, the workpiece 4 to be machined is driven to rotate by the clamp assembly 5, the clamping component 32 on the workpiece 4 to be machined synchronously rotates in the mounting space 311, and the working assembly 2 performs turning on the workpiece 4 to be machined in the rotation process of the workpiece 4 to be machined.

It will be appreciated that the work assembly 2 comprises a table provided on the machine tool 1 and a tool provided on the table for processing the workpiece 4 to be processed.

It can be understood that the machine tool 1 is provided with a moving assembly 6, the follower rest body 31 and the working assembly 2 are both arranged on the moving assembly 6, and the moving assembly 6 can drive the follower rest body 31 and the working assembly 2 to move synchronously along the axial direction of the workpiece 4 so as to finish turning of the workpiece 4.

The long shaft processing device can be an ordinary lathe or a flat lathe body numerical control lathe, and the long shaft processing device can finish the processing of various small-diameter slender shafts by using the follower rest 3 of the embodiment, and can ensure the tolerance and the surface smoothness.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A follower rest, comprising:

A follower rest body (31), wherein an installation space (311) is formed on the follower rest body (31);

The clamping component (32) is rotatably arranged in the mounting space (311), and the clamping component (32) is provided with a positioning hole (320) matched with the workpiece (4);

And an adjusting member (323), wherein the adjusting member (323) is connected with the clamping member (32), and the adjusting member (323) is used for changing the cross-sectional area of the positioning hole (320).

2. The follower rest according to claim 1, wherein the clamping member (32) comprises:

A clamping piece (321), wherein the clamping piece (321) is provided with the positioning hole (320);

And the fixed sleeve (322) is sleeved on the clamping piece (321) and is rotationally arranged in the installation space (311).

3. The follower rest according to claim 2, wherein the first end of the clamp (321) has a connecting portion (3211), the second end of the clamp (321) has a first tapered portion (3212), the first tapered portion (3212) being provided with at least one indentation (3215) in a radial direction;

The adjusting piece (323) is connected to the connecting part (3211) and abuts against the fixing sleeve (322).

4. A follower rest according to claim 3, characterized in that the connecting portion (3211) comprises an external thread, the adjusting member (323) having an internal thread adapted to the external thread.

5. The follower rest according to claim 2, wherein the outer surface of the clamp (321) is provided with a first positioning portion (3213), and the inner surface of the fixed sleeve (322) is provided with a second positioning portion (3223) adapted to the first positioning portion (3213).

6. A follower rest according to claim 2, wherein the inner surface of the holder (321) is provided with a protective layer (3214).

7. The follower rest of claim 2, further comprising:

-a locking member (324) adapted to lock the fixing sleeve (322) and the adjusting member (323).

8. The follower rest of any one of claims 2-7, further comprising a bearing member, the bearing member comprising:

And a bearing (33), wherein the fixed sleeve (322) is arranged in the installation space (311) through the bearing (33).

9. The follower holder of claim 8, wherein the bearing member further comprises:

And the bearing gland (34) is connected with the follower rest body (31), and the bearing gland (34) is used for limiting the axial direction of the bearing (33).

10. A long axis processing apparatus, comprising: machine tool (1), working assembly (2) and a follower rest (3) according to any one of claims 1 to 9;

The follower rest body (31) and the working assembly (2) are both arranged on the machine tool (1).