CN217095727U

CN217095727U - Floating boring head and boring machine

Info

Publication number: CN217095727U
Application number: CN202220901213.1U
Authority: CN
Inventors: 冒维建; 孙坚
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-02
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a boring head and boring machine float belongs to boring machine technical field. The floating boring head comprises a cutter handle, a support assembly, a transmission assembly and at least two groups of connecting assemblies, wherein the transmission assembly is arranged on the support assembly and is connected with an input shaft and at least two parallel output shafts; one ends of at least two groups of connecting components are respectively connected with at least two output shafts in a one-to-one correspondence mode, the other ends of the connecting components are respectively used for being connected with boring rods, and the boring rods can be connected with the output shafts in a floating mode through the connecting components. The utility model discloses a boring head and boring machine float through the key element of once fixing a position and processing a plurality of parallels simultaneously, raises the efficiency, reduce cost.

Description

Floating boring head and boring machine

Technical Field

The utility model relates to a boring machine technical field especially relates to a boring head and boring machine float.

Background

Generally, a machine tool only has one main shaft, a workpiece is positioned on a guide rail, the guide rail can drive the workpiece to move, and for machining different position elements, one position element is required to be machined, then the workpiece is shifted to the next position, the next element is machined, a plurality of elements cannot be machined simultaneously by positioning at one time, and the machining efficiency is low. In order to reduce the number of times of positioning, the existing machine tool adopts a vertical axis, a horizontal axis or a vertical and horizontal conversion head, and the processing of elements which are vertical to each other can be realized by one-time positioning, but a plurality of elements which are parallel to each other cannot be processed simultaneously. In the prior art, a special machine tool is provided with a multi-shaft spindle box, so that a plurality of parallel or vertical elements can be simultaneously machined by positioning once, but one machine tool needs to be designed and manufactured, the cost is high, and the existing machine tool equipment resources cannot be fully utilized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boring head and boring machine float, through the key element of a plurality of parallels of location simultaneous processing, raise the efficiency, reduce cost.

To achieve the purpose, the utility model adopts the following technical proposal:

a floating boring head comprising:

a knife handle;

a support assembly;

the transmission assembly is arranged on the support assembly and is connected with an input shaft and at least two parallel output shafts, the input shaft is connected to the cutter handle, the cutter handle rotates to drive the input shaft to rotate, and the input shaft drives the at least two output shafts to rotate through the transmission assembly;

and one end of each of the at least two groups of connecting assemblies is respectively connected with the at least two output shafts in a one-to-one correspondence mode, the other end of each of the at least two groups of connecting assemblies is respectively used for connecting boring rods, and the boring rods can be connected with the output shafts in a floating mode through the connecting assemblies.

Optionally, the coupling assembly comprises:

one end of the connecting shaft is connected to the output shaft;

the connecting sleeve is sleeved at the other end of the connecting shaft through the first groove, the side wall of the first groove is in clearance fit with the periphery of the connecting shaft, and the boring rod is connected to the connecting sleeve through the second groove;

the bolt penetrates through the connecting sleeve and the connecting shaft;

and the screw rod of the screw rod with the end cap penetrates through the inner hole and is in threaded connection with the connecting shaft, the end part of the screw rod is connected with the bolt, and the end cap of the screw rod is arranged in the second groove.

Optionally, the connecting shaft is provided with a connecting rod with an external thread, the connecting rod is in threaded connection with the output shaft, the connecting assembly further comprises a plurality of adjusting pads, the adjusting pads are provided with different thicknesses, and the adjusting pads can be arranged between the connecting shaft and the output shaft in a penetrating mode.

Optionally, the distance between the end surface of the end cap close to the bottom of the second groove and the end surface of the connecting shaft close to the bottom of the first groove is greater than the length of the inner hole.

Optionally, the threaded rod with the end cap is a spherical screw, and a spherical surface of the spherical screw can abut against a tapered groove bottom of the second groove; or

The end face of the connecting shaft is a spherical surface, and the spherical surface of the connecting shaft can abut against the conical groove bottom of the first groove.

Optionally, a square hole is formed in the connecting sleeve, a round hole is formed in the connecting shaft, the bolt is in clearance fit with the square hole and the round hole respectively, and the clearance between the bolt and the square hole is 0.5 mm.

Optionally, the transmission assembly includes a driving gear and at least two driven gears, at least two of the driven gears are respectively engaged with the driving gear, the input shaft is connected to the driving gear, and the output shaft is connected to the driven gears.

Optionally, the support assembly includes a housing and a cover plate disposed on the housing, the input shaft is rotatably connected to the cover plate and the housing through bearings, the output shaft is rotatably connected to the cover plate and the housing through bearings, the input shaft penetrates through the housing, and the output shaft penetrates through the cover plate.

Optionally, the support assembly further includes an end cover, the cover plate is provided with a bearing mounting hole for mounting a bearing, the bearing mounting hole is a through hole, and the end cover blocks one side of the bearing mounting hole departing from the housing.

In another aspect, a boring machine is provided, which includes the above floating boring head, and the boring machine includes:

the flower disc is connected with the support assembly;

the tool holder is connected with the main shaft.

The utility model has the advantages that:

the utility model provides a pair of boring head and boring machine float, the handle of a knife is connected on the main shaft of boring machine, the main shaft is rotatory, drive the input shaft and rotate, the input shaft passes through drive assembly and drives a plurality of output shafts and rotate, the hookup subassembly rotates along with the output shaft to realized that two at least boring bars rotate simultaneously along with the hookup subassembly respectively, work piece removal on main shaft and colored dish can relative workstation simultaneously, drive boring head and the boring bar relative work piece removal on the boring head that floats, realized a location and processed a plurality of parallel key elements simultaneously. The boring head can be directly used for the existing boring machine, the spindle box of the machine tool does not need to be reconfigured, the existing machine tool can be fully utilized, and the cost is reduced. The transmission assembly is used for transmission, so that the output of a plurality of output shafts is realized, and the structure is simple and reliable. The boring bar is connected in a floating way, so that the working requirement of the boring bar is met.

Drawings

Fig. 1 is a schematic structural diagram of a floating boring head mounted on a boring machine according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along line L-L of FIG. 1;

fig. 3 is an enlarged view of fig. 2 at a.

In the figure:

101. a main shaft; 102. a flower disc; 1021. a T-shaped groove; 103. a T-shaped block; 104. a socket head cap screw; 200. boring a rod;

1. a knife handle;

2. a support assembly; 21. a housing; 22. a cover plate; 23. an end cap;

3. a transmission assembly; 31. a driving gear; 32. a driven gear;

4. a coupling assembly; 41. a connecting shaft; 42. an adjustment pad; 43. connecting sleeves; 431. a first groove; 432. a second groove; 433. an inner bore; 434. a square hole; 44. a spherical screw; 45. a bolt; 46. tightening the screw;

5. an output shaft; 6. a deep groove ball bearing; 7. angular contact ball bearings; 8. an input shaft.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solutions adopted by the present invention, and the technical effects achieved by the present invention clearer, the following detailed description will be made with reference to the accompanying drawings for further describing the technical solutions of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The embodiment provides a floating boring head, which comprises a tool shank 1, a support assembly 2, a transmission assembly 3 and at least two groups of connecting assemblies 4, as shown in fig. 1 and 2; specifically, the tool shank 1 is used for being connected with a main shaft 101 on a boring machine, the transmission assembly 3 is arranged on the support assembly 2, the transmission assembly 3 is connected with an input shaft 8 and at least two parallel output shafts 5, the input shaft 8 is connected to the tool shank 1, the tool shank 1 rotates to drive the input shaft 8 to rotate, and the input shaft 8 drives the at least two output shafts 5 to rotate through the transmission assembly 3; one end of each of the at least two groups of connecting components 4 is respectively connected to the at least two output shafts 5 in a one-to-one correspondence manner, the other end of each of the at least two groups of connecting components is respectively connected to the boring bar 200, and the boring bar 200 can be connected to the output shafts 5 in a floating manner through the connecting components 4.

For convenience of description, two output shafts 5 are exemplified. The two output shafts 5 correspond to two groups of connecting components 4, and the two groups of connecting components 4 are respectively used for connecting the boring bar 200. Specifically, the tool shank 1 is connected to a main shaft 101 of the boring machine, the main shaft 101 rotates to drive the input shaft 8 to rotate, the input shaft 8 drives the two output shafts 5 to rotate through the transmission assembly 3, and the connecting assembly 4 rotates along with the output shafts 5, so that the at least two boring bars 200 respectively rotate along with the connecting assembly 4 at the same time, and the simultaneous processing of two parallel elements in one positioning is realized. Specifically, a plurality of output shafts 5 may be provided at the same time, and then a plurality of parallel elements, specifically three, four or more output shafts 5 and coupling assemblies 4, may be simultaneously machined by correspondingly connecting a plurality of boring bars 200, and may be provided according to actual conditions. The boring head can be directly used for the existing boring machine, the spindle box of the machine tool does not need to be reconfigured, the existing machine tool can be fully utilized, and the cost is reduced. The transmission assembly 3 is used for transmission, so that the output of a plurality of output shafts 5 is realized, and the structure is simple and reliable. The boring bar 200 is connected in a floating manner, so that the working requirement of the boring bar 200 is met.

In this embodiment, the floating boring head is used for boring two parallel holes by a horizontal boring machine, and the two boring bars 200 are respectively positioned by another fixture, which requires the spindle 101 of the boring machine to provide a rotating force and a pulling force.

Specifically, as shown in FIG. 2, the input shaft 8 is keyed to the bore of the tool shank 1.

Alternatively, as shown in fig. 2 and 3, the coupling assembly 4 includes a connecting shaft 41, a connecting sleeve 43, a plug 45, and a screw with an end cap, one end of the connecting shaft 41 being connected to the output shaft 5; a first groove 431 and a second groove 432 are formed in two ends of the connecting sleeve 43, the first groove 431 and the second groove 432 are communicated through an inner hole 433, the inner diameters of the first groove 431 and the second groove 432 are larger than the inner diameter of the inner hole 433, the connecting sleeve 43 is sleeved at the other end of the connecting shaft 41 through the first groove 431, the side wall of the first groove 431 is in clearance fit with the outer periphery of the connecting shaft 41, and the boring rod 200 is connected to the connecting sleeve 43 through the second groove 432; the plug pin 45 penetrates through the connecting sleeve 43 and the connecting shaft 41; the screw rod passes through the inner hole 433 and is in threaded connection with the connecting shaft 41, the end part of the screw rod is connected with the bolt 45, and the end cap of the screw rod is arranged in the second groove 432.

The screw rod with the end cap is connected with the connecting shaft 41, the end cap and the connecting shaft 41 are respectively arranged in the second groove 432 and the first groove 431, the inner diameters of the first groove 431 and the second groove 432 are both larger than the inner diameter of the inner hole 433, axial limiting is formed, and therefore the connecting sleeve 43 is connected with the connecting shaft 41; the connecting shaft 41 is connected with the output shaft 5, so that the connection of the connecting component 4 and the output shaft 5 is realized; the connecting sleeve 43 is used for connecting the boring bar 200, thereby realizing the connection of the boring bar 200 on the coupling component 4.

The first groove 431 is in clearance fit with the periphery of the connecting shaft 41, and the connecting shaft 41 is in circumferential floating connection with the connecting sleeve 43; through setting up bolt 45, improved the reliability of transmission power between connecting axle 41 and the adapter sleeve 43, the screw rod top card has improved bolt 45 connection reliability on the recess of bolt 45, avoids the slippage. By providing the second groove 432, the connection of the screw with the nut with the connecting shaft 41 can be realized.

Further, the first groove 431, the inner hole 433 and the second groove 432 are arranged on the same center line, so that the boring bar 200 is coaxial with the output shaft 5.

In this embodiment, as shown in fig. 2, a connecting rod with an external thread extends out of the connecting shaft 41, the connecting rod is in threaded connection with the output shaft 5, further, the connection assembly 4 further includes an adjusting pad 42, the adjusting pad 42 penetrates through the connecting rod and is arranged between the connecting shaft 41 and the output shaft 5, the connection reliability between the connecting shaft 41 and the output shaft 5 can be improved by arranging the adjusting pad 42, and it is also important that the adjusting pad 42 is provided with a plurality of adjusting pads 42, the thicknesses of the adjusting pads 42 are different, the adjusting pads 42 can alternatively penetrate through the connecting rod, or the thicknesses of the adjusting pads 42 penetrating through the connecting rod can be ground, so that the angle of the connecting rod screwed into the output shaft 5 can be adjusted, the axis angles of the pins 45 on different connection assemblies 4 are ensured to be consistent, and further the initial angles of the boring bars 200 are ensured to be consistent.

Alternatively, as shown in fig. 2 and 3, the distance between the end surface of the end cap close to the bottom of the second groove 432 and the end surface of the connecting shaft 41 close to the bottom of the first groove 431 is greater than the length of the inner hole 433, so that a gap is provided between the connecting shaft 41 and the connecting sleeve 43, and the connecting shaft 41 and the connecting sleeve 43 are connected in a floating manner in the axial direction.

In this embodiment, the screw rod with the end cap is a spherical screw 44, and the spherical surface of the spherical screw 44 can abut against the tapered groove bottom of the second groove 432 to form a line contact, so that only axial force and no radial force are generated between the spherical screw and the tapered groove bottom, thereby improving the reliability of floating connection. In other embodiments, the end surface of the coupling shaft 41 is a spherical surface, and the spherical surface of the coupling shaft 41 can abut against the tapered bottom of the first groove 431.

In this embodiment, the coupling assembly 4 includes the set screw 46, and the groove wall passing through the second groove 432 is pressed against the boring bar 200, so as to improve the connection reliability.

Optionally, as shown in fig. 2 and 3, a square hole 434 is formed in the connecting sleeve 43, a round hole is formed in the connecting shaft 41, the plug pin 45 is a cylindrical pin, the plug pin 45 is in clearance fit with the square hole 434 and the round hole respectively, a gap between the plug pin 45 and the square hole 434 is large, the size of the gap is preferably 0.5mm, connection is facilitated, floating connection is achieved, and jamming is avoided.

Optionally, as shown in fig. 2, the transmission assembly 3 includes a driving gear 31 and at least two driven gears 32, the at least two driven gears 32 are respectively engaged with the driving gear 31, the input shaft 8 is connected with the driving gear 31, and the output shaft 5 is connected with the driven gears 32, so that the gear transmission is compact in structure, parallel output shafts 5 can be ensured, and the transmission precision is high; a plurality of driven gears 32 may be provided to increase the number of output shafts 5. Specifically, driven gear 32 is keyed to output shaft 5, and driving gear 31 is keyed to input shaft 8, has improved the transmission torque reliability.

Furthermore, the installation central lines of the driving gear 31 and the driven gear 32 are not on the same straight line, so that gear displacement is avoided.

Alternatively, as shown in fig. 1 and 2, the support assembly 2 includes a housing 21 and a cover plate 22 disposed on the housing 21, the input shaft 8 is rotatably connected to the cover plate 22 and the housing 21 through bearings, the output shaft 5 is rotatably connected to the cover plate 22 and the housing 21 through bearings, the input shaft 8 penetrates through the housing 21, and the output shaft 5 penetrates through the cover plate 22. The cover plate 22 and the shell 21 are respectively used for mounting bearings, so that the bearings are convenient to mount.

Further optionally, as shown in fig. 1 and fig. 2, the support assembly 2 further includes an end cover 23, the cover plate 22 is provided with a bearing mounting hole for mounting a bearing, the bearing mounting hole is a through hole, the end cover 23 is blocked at a side of the bearing mounting hole away from the housing 21, and the end cover 23 is used for adjusting the bearing pre-tightening force; in addition, when the bearing mounting hole is processed, the cover plate 22 can be mounted on the shell 21, and the bearing mounting hole is processed at the same time, so that the processing convenience is improved, and the accuracy of the same center line of the bearing mounting hole on the shell 21 and the bearing mounting hole on the cover plate 22 is easily ensured.

Specifically, the end cover 23 is connected to the cover plate 22 by a fastener, the cover plate 22 is connected to the housing 21 by a fastener, and further, the end cover 23 and the cover plate 22 and the housing 21 are hermetically connected, for example, a sealing ring is provided.

Further, the input shaft 8 is mounted on the support assembly 2 through a deep groove ball bearing 6, and the output shaft 5 is mounted on the support assembly 2 through an angular contact ball bearing 7.

The embodiment also provides a boring machine which comprises the floating boring head, so that a plurality of parallel elements can be simultaneously machined by one-time positioning. Specifically, as shown in fig. 1 and 2, the boring machine comprises a faceplate 102 and a main shaft 101, wherein the main shaft 101 can rotate relative to the faceplate 102, a workbench can move relative to the main shaft 101 and the faceplate 102, a workpiece is arranged on the workbench, and a support assembly 2 is connected to the faceplate 102; the tool shank 1 is connected to the main shaft 101. The main shaft 101 rotates to drive the input shaft 8 to rotate, the input shaft 8 drives the output shafts 5 to rotate through the transmission assembly 3, and the connecting assembly 4 rotates along with the output shafts 5, so that the at least two boring bars 200 respectively rotate along with the connecting assembly 4 at the same time, the workbench moves to drive workpieces on the boring bars 200 to move relative to the floating boring head and the boring bars 200 on the floating boring head, and the simultaneous processing of a plurality of parallel elements in one positioning is realized. The boring head can be directly used for the existing boring machine, the spindle box of the machine tool does not need to be reconfigured, the existing machine tool can be fully utilized, and the cost is reduced.

Specifically, the tool shank 1 is connected in a taper hole of the main shaft 101, a T-shaped groove 1021 is formed in the faceplate 102, a T-shaped block 103 is arranged in the T-shaped groove 1021, the support assembly 2 is connected on the faceplate 102 through a fastener, and in this embodiment, the housing 21 is connected on the faceplate 102 through a hexagon socket head cap screw 104 and the T-shaped block 103 fastener.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A floating boring head, comprising:

a knife handle (1);

a support assembly (2);

the transmission assembly (3) is arranged on the supporting assembly (2), the transmission assembly (3) is connected with an input shaft (8) and at least two parallel output shafts (5), the input shaft (8) is connected to the cutter handle (1), the cutter handle (1) rotates to drive the input shaft (8) to rotate, and the input shaft (8) drives the at least two output shafts (5) to rotate through the transmission assembly (3);

and one end of each of the at least two groups of connecting assemblies (4) is correspondingly connected with at least two output shafts (5) one by one, the other end of each of the at least two groups of connecting assemblies is used for connecting a boring bar (200), and the boring bars (200) can be connected to the output shafts (5) in a floating manner through the connecting assemblies (4).

2. The floating boring head according to claim 1, characterized in that the coupling assembly (4) comprises:

a connecting shaft (41) having one end connected to the output shaft (5);

the two ends of the connecting sleeve (43) are inwards provided with a first groove (431) and a second groove (432) in a concave mode, the first groove (431) is communicated with the second groove (432) through an inner hole (433), the inner diameters of the first groove (431) and the second groove (432) are larger than the inner diameter of the inner hole (433), the connecting sleeve (43) is sleeved at the other end of the connecting shaft (41) through the first groove (431), the side wall of the first groove (431) is in clearance fit with the periphery of the connecting shaft (41), and the boring rod (200) is connected to the connecting sleeve (43) through the second groove (432);

the plug pin (45) penetrates through the connecting sleeve (43) and the connecting shaft (41);

the screw rod with the end cap penetrates through the inner hole (433) and is in threaded connection with the connecting shaft (41), the end part of the screw rod is connected with the bolt (45), and the end cap of the screw rod is arranged in the second groove (432).

3. The floating boring head according to claim 2, characterized in that a connecting rod with an external thread protrudes from the connecting shaft (41), the connecting rod is in threaded connection with the output shaft (5), the coupling assembly (4) further comprises a plurality of adjusting pads (42), the adjusting pads (42) are provided in plurality, the thickness of the adjusting pads (42) is different, and the adjusting pads (42) can be alternatively inserted into the connecting rod and are arranged between the connecting shaft (41) and the output shaft (5).

4. The floating boring head according to claim 2, characterised in that the end face of the end cap close to the bottom of the second groove (432) is at a distance from the end face of the connecting shaft (41) close to the bottom of the first groove (431) that is greater than the length of the inner bore (433).

5. The floating boring head of claim 4 wherein,

the screw rod with the end cap is a spherical screw (44), and the spherical surface of the spherical screw (44) can abut against the conical groove bottom of the second groove (432); or

The end face of the connecting shaft (41) is a spherical surface, and the spherical surface of the connecting shaft (41) can abut against the conical groove bottom of the first groove (431).

6. The floating boring head as claimed in claim 2 wherein the connecting sleeve (43) is provided with a square hole (434), the connecting shaft (41) is provided with a round hole, the plug pin (45) is in clearance fit with the square hole (434) and the round hole respectively, and the clearance between the plug pin (45) and the square hole (434) is 0.5 mm.

7. The floating boring head according to any one of claims 1 to 5, characterized in that the transmission assembly (3) comprises a driving gear (31) and at least two driven gears (32), at least two of the driven gears (32) are respectively in meshed connection with the driving gear (31), the input shaft (8) is connected with the driving gear (31), and the output shaft (5) is connected with the driven gears (32).

8. The floating boring head according to any one of claims 1 to 5 wherein the support assembly (2) comprises a housing (21) and a cover plate (22) provided on the housing (21), the input shaft (8) is rotatably connected to the cover plate (22) and the housing (21) by bearings, the output shaft (5) is rotatably connected to the cover plate (22) and the housing (21) by bearings, and the input shaft (8) penetrates the housing (21) and the output shaft (5) penetrates the cover plate (22).

9. The floating boring head as claimed in claim 8 wherein the support assembly (2) further comprises an end cap (23), the cover plate (22) is provided with a bearing mounting hole for mounting a bearing, the bearing mounting hole is a through hole, and the end cap (23) seals a side of the bearing mounting hole facing away from the housing (21).

10. A boring machine comprising a floating boring head as claimed in any one of claims 1 to 9, the boring machine comprising:

a faceplate (102), to which a support assembly (2) is connected (102);

the tool holder is characterized by comprising a main shaft (101), and the tool holder (1) is connected to the main shaft (101).