CN217452156U

CN217452156U - Thimble tailstock suitable for fixed machined part on digit control machine tool

Info

Publication number: CN217452156U
Application number: CN202221579255.4U
Authority: CN
Inventors: 朱守俊
Original assignee: Ningbo Hayuan Automation Technology Co ltd
Current assignee: Ningbo Hayuan Automation Technology Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-09-20
Anticipated expiration: 2032-06-22

Abstract

The utility model discloses a thimble tailstock suitable for fixed machined part on digit control machine tool, including tailstock main part and thimble, tailstock main part one side is provided with the swiveling wheel, and the inboard fixed mounting of swiveling wheel has fixed rotating shaft, and the thimble is provided with the thimble seat, and the laminating of drive overcoat sets up in the inner chamber of tailstock main part, and the drive overcoat fixed mounting has the thread bush, and fixed rotating shaft and thread bush screw meet; the tailstock main part includes the bottom plate of bottom, evenly is provided with the locating hole on the inner rail, and the tailstock main part passes through the bottom plate and slides on the inner rail, and the bottom plate is provided with the subassembly of predetermineeing towards one side of lathe, and the last slip of inner rail is provided with the spacing subassembly corresponding to predetermineeing the subassembly, and spacing subassembly includes the location mouth, and the location mouth is provided with in the locating hole of bolt location and inner rail. The utility model discloses an interact of predetermineeing subassembly and spacing subassembly can know the roughly position of tailstock main part in advance to reduce the possibility that the work piece was collided to the thimble in the accommodation process.

Description

Thimble tailstock suitable for fixed machined part on digit control machine tool

Technical Field

The utility model belongs to the technical field of machining equipment technique and specifically relates to a thimble tailstock suitable for fixed machined part on the digit control machine tool.

Background

A machine tool is an apparatus for turning a rotating workpiece mainly with a turning tool. The machine tool mainly comprises a supporting part, a speed change mechanism, a feeding mechanism, a main spindle box, a lubricating system, a thimble tailstock and the like. The methods for machining machine parts in modern machine manufacturing are numerous: in addition to cutting, casting, forging, welding, pressing, extruding, etc., however, in general, a part requiring high precision and fine surface roughness is finished by cutting on a machine tool. The machine tool plays an important role in the construction of national economy modernization, and the machine tool mainly forms a finished equipment system through processing equipment such as a lathe, a milling machine, a drilling machine and the like. When a numerical control machine tool is used for machining, a thimble tailstock is often used for assisting in fixing a workpiece.

The existing ejector pin tailstock for the numerical control machine tool is not a standard part, the length of a workpiece is not always easy to know when the workpiece is fixed, so that the manual ejector pin tailstock can be used, when the ejector pin tailstock moves and is close to the workpiece, the existing ejector pin tailstock is mostly directly moved manually and is close to the workpiece, at the moment, the ejector pin can collide with the workpiece, and the ejector pin tailstock is usually used for assisting in fixing the workpiece and needs to stop in advance before the workpiece is touched, and the workpiece is fixed by the ejector pin through the adjustment of the ejector pin tailstock.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough and thimble tailstock suitable for the fixed machined part on the digit control machine tool that designs of above-mentioned technique.

The utility model relates to a thimble tailstock suitable for fixed machined part on digit control machine tool, including tailstock main part and thimble, tailstock main part one side is provided with the swiveling wheel, and the inboard fixed mounting of swiveling wheel has fixed rotating shaft, and fixed rotating shaft passes through the bearing to be installed in the tailstock main part, and the thimble is provided with the thimble seat, and the thimble seat outside has the drive overcoat through the screw mounting, and the laminating of drive overcoat sets up in the inner chamber of tailstock main part, and drive overcoat fixed mounting has the thread bush, and fixed rotating shaft and thread bush screw meet; the tailstock main part includes the bottom plate of bottom, the bottom plate bottom is provided with outer guide rail and inner guide rail, evenly be provided with the locating hole on the inner guide rail, the tailstock main part passes through the bottom plate and slides on the inner guide rail, and the bottom plate is provided with the subassembly of predetermineeing towards one side of lathe, it includes the flexible post and the spring of fixed mounting in the bottom plate side to predetermine the subassembly, the spring is located the outside of flexible post, and spring and flexible end of a column fixed mounting have spacing guide block, it is provided with the spacing subassembly corresponding to predetermineeing the subassembly to slide on the inner guide rail, spacing subassembly includes the location mouth, the location mouth is provided with in the locating hole of bolt location and inner guide rail, it is close to and acts on spacing subassembly and makes spring and flexible post shrink to predetermine the subassembly.

Further, the thimble seat is the toper, and the part that the drive overcoat inner wall corresponds the thimble seat sets up the bell jar into the laminating, is provided with the through-hole in thimble seat middle part and the corresponding position of drive overcoat, sets up screw fixation thimble seat and drive overcoat in the through-hole.

Furthermore, the inner side end of the thimble seat is provided with a thimble limiting bulge, the end part of the fixed rotating shaft is provided with a limiting groove, and the thimble limiting bulge corresponds to the limiting groove.

Furthermore, the limiting assembly comprises a sliding plate, a sliding groove is formed in the bottom of the sliding plate and is arranged on the inner guide rail in a sliding mode through the sliding groove, a limiting plate is arranged on the top of the sliding plate, a square groove is formed in the top of the limiting guide block, a square plate is arranged in the square groove in an interference fit mode, and the square plate corresponds to the limiting plate of the limiting assembly.

Furthermore, a plurality of oil holes are formed in the top of the tailstock main body, and at least one oil hole corresponds to the connecting part of the fixed rotating shaft and the driving outer sleeve.

Furthermore, be provided with the side fixed slot on the drive overcoat, be provided with the hand rocker in the outside of tailstock main part, the inside compact heap that is provided with of hand rocker, compact heap threaded connection are in the lateral wall of tailstock main part, and compact heap medial extremity corresponds to the notch part of side fixed slot.

Furthermore, a positioning screw hole is formed in the bottom plate, and a screw is arranged through the positioning screw hole to enable the bottom plate to be fixed with the inner guide rail.

Furthermore, a positioning part is arranged on the driving outer sleeve, and a screw sleeve is fixedly arranged by screwing a screw into the positioning part.

The utility model relates to a thimble tailstock suitable for the fixed machined part on the digit control machine tool, through the preset subassembly that sets up close to and effect spacing subassembly make spring and flexible post shrink; the rotating wheel rotates to drive the fixed rotating shaft to rotate, the position of the fixed rotating shaft is unchanged when the fixed rotating shaft rotates, and the threaded sleeve and the driving outer sleeve which are in threaded connection with the fixed rotating shaft can be attached to the inner cavity of the tailstock main body to move, so that the fixed rotating shaft can be attached to the surface of a workpiece to be fixed; the tailstock body is close to a workpiece to move when the tailstock is used, a limiting guide block of the preset assembly is firstly contacted with the limiting assembly when the limiting assembly moves, the limiting assembly can be manually or electrically moved to the position of the bottom of the workpiece before the tailstock body is used, at the moment, the limiting guide block at the bottom of the ejector pin is firstly contacted with the limiting assembly before the ejector pin is contacted with the workpiece, at the moment, the spring and the telescopic column contract and buffer to prompt an operator to fixedly position the tailstock body, and then the rotating wheel rotates to drive the outer sleeve to move towards one side of the workpiece, so that the ejector pin is contacted with and positions the workpiece, the hardness and the wear resistance of the workpiece are different due to different materials of the workpiece, if the tailstock body moves towards one side of the workpiece too fast, the ejector pin of the tailstock body can directly impact the workpiece, at the moment, the workpiece and the ejector pin can be damaged, and the buffering effect of the spring is utilized, just can in time stop arriving preset position to prevent the striking, simultaneously, spacing subassembly to the distance of work piece, and tailstock main part and predetermine the subassembly and can simply predict to spacing subassembly's distance, thereby the operator uses the swiveling wheel to remove when fastening, can have certain prediction, thereby judges to press from both sides tightly and need carry out what kind of regulation, facilitates the use to the swiveling wheel.

Drawings

FIG. 1 is a schematic view of the overall structure;

FIG. 2 is a schematic structural view of a combination of a tailstock body and a preset assembly;

FIG. 3 is a schematic structural view of a spacing assembly;

FIG. 4 is a schematic sectional view of the stationary shaft and the driving sleeve;

fig. 5 is a schematic structural view of the interior of the tailstock body.

In the figure: 1. a rotating wheel; 2. a tailstock body; 3. a thimble; 4. a bolt; 5. a limiting component; 51. a slide plate; 52. a chute; 53. positioning the port; 54. a limiting plate; 6. presetting a component; 61. a telescopic column; 62. a spring; 63. a limiting guide block; 7. a hand lever; 8. an outer guide rail; 9. an inner guide rail; 10. positioning the screw hole; 11. fixing the rotating shaft; 12. a positioning part; 13. a driving jacket; 14. a thimble seat; 15. a thimble limit bulge; 16. a side fixing groove; 17. a compression block; 18. and (4) a threaded sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 all belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1 to 5, the thimble tailstock for fixing a workpiece on a numerically-controlled machine tool described in this embodiment includes a tailstock body 2 and a thimble 3; the tail seat structure comprises a tail seat body 2, a rotating wheel 1 is arranged on one side of the tail seat body 2, a fixed rotating shaft 11 is fixedly installed on the inner side of the rotating wheel 1, the fixed rotating shaft 11 is installed on the tail seat body 2 through a bearing, namely the fixed rotating shaft 11 ensures that the position of the tail seat body is not changed when the tail seat body rotates, an ejector pin 3 is provided with an ejector pin seat 14, the ejector pin 3 and the ejector pin seat 14 can be integrally formed, a driving outer sleeve 13 is installed outside the ejector pin seat 14 through screws, when the driving outer sleeve 13 is ensured to move, the ejector pin 3 can also stably move, the driving outer sleeve 13 is arranged in an inner cavity of the tail seat body 2 in a fit mode, a threaded sleeve 18 is fixedly installed on the driving outer sleeve 13, and the fixed rotating shaft 11 is in threaded connection with the threaded sleeve 18; the tailstock body 2 comprises a bottom plate, an outer guide rail 8 and an inner guide rail 9 are arranged at the bottom of the bottom plate, as shown in fig. 1, the inner guide rail 9 and the outer guide rail 8 are part of the bottom plate in fig. 1, the outer guide rail 8 limits the outside of the bottom of the tailstock body 1, the inner guide rail 9 and the outer guide rail 8 extend to a machine tool, positioning holes are uniformly formed in the inner guide rail 9, the tailstock body 2 slides on the inner guide rail 9 through the bottom plate, obviously, fixing parts such as bolts are inserted into the positioning holes of the inner guide rail to position when sliding to a proper position, a preset assembly 6 is arranged on one side of the bottom plate facing the machine tool, the preset assembly 6 comprises a telescopic column 61 and a spring 62 which are fixedly arranged on the side surface of the bottom plate, the spring 62 is arranged outside the telescopic column 61, a limiting guide block 63 is fixedly arranged at the end parts of the spring 62 and the telescopic column 61, a limiting assembly 5 corresponding to the preset assembly is arranged on the inner guide rail 9 in a sliding manner, the limiting assembly 5 comprises a positioning hole 53, the positioning hole 53 is provided with a bolt 4 for positioning in a positioning hole of the inner guide rail 9, and the preset assembly 6 is close to and acts on the limiting assembly 5 to enable the spring 62 and the telescopic column 61 to contract; the rotation of the rotating wheel 1 drives the fixed rotating shaft 11 to rotate, the position of the fixed rotating shaft 11 is unchanged when the fixed rotating shaft rotates, and the threaded sleeve 18 and the driving outer sleeve 13 which are in threaded connection with the fixed rotating shaft 11 move along the inner cavity of the tailstock main body 2 so as to be attached to the surface of a workpiece for fixing; the preset assembly 6 and the limit assembly 5 are arranged, when in use, the tailstock body 2 moves close to a workpiece, when in movement, the limit guide block 63 of the preset assembly is firstly contacted with the limit assembly 4, the limit assembly can be manually or electrically moved to the position at the bottom of the workpiece before the tailstock body 2 is used, at the moment, before the thimble 3 is contacted with the workpiece, the limit guide block 63 at the bottom of the thimble 3 is firstly contacted with the limit assembly, at the moment, the spring 62 and the telescopic column 61 contract and buffer to prompt an operator to fix and position the tailstock body 2, then the outer sleeve 3 is driven to move towards one side of the workpiece through the rotation of the rotating wheel 1, so that the thimble 3 is contacted with and positions the workpiece, because the materials of the workpieces are different, the hardness and the wear resistance are different, if the tailstock body moves towards one side of the workpiece too fast, the thimble of the tailstock body can directly impact the workpiece, at the workpiece and the thimble can be damaged, through the buffering action of the spring 62, the automobile can stop in time when reaching a preset position, so that collision is prevented, and meanwhile, the distance from the limiting component to the workpiece and the distance from the tailstock body 2 and the preset component to the limiting component can be simply estimated, so that an operator can estimate the distance to a certain extent when moving and fastening by using the rotating wheel 1; even if not in time brake when the operator removes the tailstock main part, predetermine the subassembly and also can make tailstock main part 2 stop with spacing subassembly effect, make simultaneously thimble 3 and the work piece of tailstock main part 2 keep suitable distance, this process does not need the operator to carry out the control deliberately, therefore easy operation to make things convenient for the operator to judge that the clamp is tight and need carry out how regulation, facilitate the use to swiveling wheel 1.

In this embodiment, thimble seat 14 is the toper, and the part that drives 13 inner walls and correspond thimble seat 14 sets up the bell jar for the laminating, is provided with the through-hole in thimble seat 14 middle part and the corresponding position of drive overcoat 13, sets up 14 and the drive overcoat 13 of fix with screw thimble seat in the through-hole, only needs during the installation to put into drive overcoat 13 with thimble seat 14 and thimble 3 directly, installs through the screw this moment, and it is all very convenient to install and dismantle.

In this embodiment, the inner side end of the thimble seat 14 is provided with a thimble limiting protrusion 15, the end of the fixed rotating shaft 11 is provided with a limiting groove, the thimble limiting protrusion 15 is arranged corresponding to the limiting groove, and the position of the thimble 3 is more stable when the thimble is moved to a workpiece position when the thimble is used due to the limiting of the thimble limiting protrusion 15 and the limiting groove.

In this embodiment, the limiting component 5 includes a sliding plate 51, the bottom of the sliding plate 51 is provided with a sliding groove 52 and is slidably disposed on the inner guide rail 9 through the sliding groove 52, the top of the sliding plate 51 is provided with a limiting plate 54, the top of the limiting guide block 63 is provided with a square groove, a square plate is disposed in the square groove through interference fit, the square plate corresponds to the limiting plate 54 of the limiting component 5, and through the arrangement of the square plate, the square plate increases the effective area of the preset component, and the preset component can be more stably performed when approaching the limiting component 5.

In this embodiment, the top of tailstock main part 2 is provided with a plurality of oil filler points, wherein at least one oil filler point is corresponding to the connecting portion of fixed pivot 11 and drive overcoat 13, can pass through the oil filler point oiling during the use, have the inner chamber that gets into tailstock main part 2 through the oil filler point infiltration, because the connecting portion of fixed pivot 11 and drive overcoat 13 also are provided with the oil filler point that corresponds, lubricating oil just can permeate through the connection gap of fixed pivot 11 and drive overcoat 13, and because the effect when the two screw drive, lubricating oil also can more fully act on.

In this embodiment, be provided with side fixed slot 16 on the drive overcoat 13, be provided with hand rocking bar 7 in tailstock main part 2's outside, hand rocking bar 7 is inside to be provided with compact heap 17, compact heap 17 threaded connection is in tailstock main part 2's lateral wall, compact heap 17 medial extremity corresponds to the notch part of side fixed slot 16, as the 16 long-bit notches of side fixed slot shown in fig. 5, the position that corresponds to thimble 3 and adjust is different, after the thimble position control, hand rocking bar 7 rotates, compact heap 17 threaded connection is close to and compresses tightly the side fixed slot, assist fixedly.

In this embodiment, the bottom plate is provided with a positioning screw hole 10, and the bottom plate is fixed to the inner guide rail 9 by the screw arranged through the positioning screw hole 10, so that the positioning process is simplified.

In the embodiment, the driving outer sleeve 13 is provided with the positioning part 12, and the threaded sleeve 18 is fixedly installed by screwing the positioning part 12 into a screw, so that the driving outer sleeve 13 and the threaded sleeve 18 are conveniently fixed; the threaded sleeve 18 is susceptible to wear in use and in this way the components are easily replaced.

In the implementation of the embodiment, the preset assembly 6 approaches and acts on the limiting assembly 5 to enable the spring 62 and the telescopic column 61 to contract; the rotation of the rotating wheel 1 drives the fixed rotating shaft 11 to rotate, the position of the fixed rotating shaft 11 is unchanged when the fixed rotating shaft rotates, and the threaded sleeve 18 and the driving outer sleeve 13 which are in threaded connection with the fixed rotating shaft 11 move along the inner cavity of the tailstock main body 2 so as to be attached to the surface of a workpiece for fixing; the preset assembly 6 and the limit assembly 5 are arranged, when in use, the tailstock body 2 moves close to a workpiece, when in movement, the limit guide block 63 of the preset assembly is firstly contacted with the limit assembly 4, the limit assembly can be manually or electrically moved to the position at the bottom of the workpiece before the tailstock body 2 is used, at the moment, before the thimble 3 is contacted with the workpiece, the limit guide block 63 at the bottom of the thimble 3 is firstly contacted with the limit assembly, at the moment, the spring 62 and the telescopic column 61 contract and buffer to prompt an operator to fix and position the tailstock body 2, then the outer sleeve 3 is driven to move towards one side of the workpiece through the rotation of the rotating wheel 1, so that the thimble 3 is contacted with and positions the workpiece, because the materials of the workpieces are different, the hardness and the wear resistance are different, if the tailstock body moves towards one side of the workpiece too fast, the thimble of the tailstock body can directly impact the workpiece, at the workpiece and the thimble can be damaged, through the buffering effect of the spring 62, the rotating wheel can be stopped in time when reaching a preset position, so that impact is prevented, and meanwhile, the distance from the limiting component to the workpiece and the distance from the tailstock body 2 and the preset component to the limiting component can be simply estimated, so that an operator can estimate a certain distance when moving and fastening the rotating wheel 1, and can judge how to adjust the rotating wheel 1 for clamping, and the rotating wheel is convenient to use; the thimble seat 14 is arranged to be conical, the part of the inner wall of the driving outer sleeve 13, corresponding to the thimble seat 14, is arranged to be a fitted conical groove, only the thimble seat 14 and the thimble 3 need to be directly placed into the driving outer sleeve 13 during installation, and at the moment, the installation is carried out through screws, so that the installation and the disassembly are more convenient; the thimble limiting bulge 15 is arranged corresponding to the limiting groove, and the limiting of the limiting bulge 15 and the limiting groove enables the thimble 3 to be more stable when the thimble moves to a workpiece position in use; the fixing of the driving outer sleeve 13 and the threaded sleeve 18 is facilitated by providing the positioning portion 12 to be screwed into a screw to fixedly mount the threaded sleeve 18, and the threaded sleeve 18 is easily worn out in use, and in this way, parts are easily replaced.

The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without changing the shape or structure of the product, and all the products having the same or similar technical solutions as the present invention fall within the protection scope of the present invention.

Claims

1. The ejector pin tailstock suitable for fixing a machined part on a numerical control machine tool comprises a tailstock main body (2) and an ejector pin (3), and is characterized in that a rotating wheel (1) is arranged on one side of the tailstock main body (2), a fixed rotating shaft (11) is fixedly installed on the inner side of the rotating wheel (1), the fixed rotating shaft (11) is installed on the tailstock main body (2) through a bearing, the ejector pin (3) is provided with an ejector pin seat (14), a driving outer sleeve (13) is installed on the outer portion of the ejector pin seat (14) through a screw, the driving outer sleeve (13) is arranged in an inner cavity of the tailstock main body (2) in a fit mode, a threaded sleeve (18) is fixedly installed on the driving outer sleeve (13), and the fixed rotating shaft (11) is in threaded connection with the threaded sleeve (18); the tailstock main body (2) comprises a bottom plate at the bottom, an outer guide rail (8) and an inner guide rail (9) are arranged at the bottom of the bottom plate, positioning holes are uniformly arranged on the inner guide rail (9), the tailstock main body (2) slides on the inner guide rail (9) through the bottom plate, and one side of the base plate facing the machine tool is provided with a preset assembly (6), the preset assembly (6) comprises a telescopic column (61) and a spring (62) which are fixedly arranged on the side surface of the base plate, the spring (62) is positioned outside the telescopic column (61), and the end parts of the spring (62) and the telescopic column (61) are fixedly provided with a limiting guide block (63), the inner guide rail (9) is provided with a limiting component (5) corresponding to the preset component in a sliding way, the limiting component (5) comprises a positioning hole (53), the positioning hole (53) is provided with a bolt (4) for positioning and is positioned in a positioning hole of the inner guide rail (9), the presetting assembly (6) is close to and acts on the limiting assembly (5) to enable the spring (62) and the telescopic column (61) to contract.

2. The tailstock suitable for fixing a machined part on a numerical control machine tool according to claim 1, wherein the thimble seat (14) is conical, a part of the inner wall of the driving outer sleeve (13) corresponding to the thimble seat (14) is provided with a fitted conical groove, a through hole is formed in the middle of the thimble seat (14) and the corresponding position of the driving outer sleeve (13), and the thimble seat (14) and the driving outer sleeve (13) are fixed through screws.

3. The thimble tailstock suitable for fixing a workpiece on a numerical control machine tool according to claim 2, wherein a thimble limit protrusion (15) is provided at one end of the inner side of the thimble seat (14), a limit groove is provided at the end of the fixed rotating shaft (11), and the thimble limit protrusion (15) is provided corresponding to the limit groove.

4. The thimble tailstock suitable for fixing a machined part on a numerical control machine according to claim 1, wherein the limiting assembly (5) comprises a sliding plate (51), the bottom of the sliding plate (51) is provided with a sliding groove (52) and is slidably arranged on the inner guide rail (9) through the sliding groove (52), the top of the sliding plate (51) is provided with a limiting plate (54), the top of the limiting guide block (63) is provided with a square groove, a square plate is arranged in the square groove in an interference fit manner, and the square plate corresponds to the limiting plate (54) of the limiting assembly (5).

5. The thimble tailstock suitable for fixing workpieces on numerically controlled machine tools according to claim 1, characterized in that the top of the tailstock body (2) is provided with a plurality of oil holes, at least one of which corresponds to the connection between the fixed spindle (11) and the driving jacket (13).

6. The thimble tailstock suitable for fixing a machined part on a numerical control machine tool according to claim 1, wherein a side fixing groove (16) is formed in the driving outer sleeve (13), a hand lever (7) is arranged outside the tailstock main body (2), a pressing block (17) is arranged inside the hand lever (7), the pressing block (17) is in threaded connection with the side wall of the tailstock main body (2), and the end of the inner side of the pressing block (17) corresponds to the notch part of the side fixing groove (16).

7. The tailstock adapted to fix a workpiece on a numerical control machine tool according to claim 1, wherein the bottom plate is provided with a positioning screw hole (10), and the bottom plate is fixed to the inner rail (9) by the positioning screw hole (10) provided with a screw.

8. The tailstock adapted to fix a workpiece on a numerical control machine according to claim 1, wherein the driving outer sleeve (13) is provided with a positioning part (12), and a screw is screwed in through the positioning part (12) to fix the threaded sleeve (18).