CN216421699U

CN216421699U - Horizontal drilling mechanism and machine tool

Info

Publication number: CN216421699U
Application number: CN202122656132.8U
Authority: CN
Inventors: 彭土明
Original assignee: Guangdong Ligong Cnc Technology Co ltd
Current assignee: Guangdong Ligong Cnc Technology Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-05-03
Anticipated expiration: 2031-11-01

Abstract

The application provides a horizontal drilling mechanism and a machine tool, which comprise a mounting plate; the guide sleeve positioning groove is used for positioning the guide sleeve on the cutter and is provided with a guide sleeve placing opening which is formed along the radial direction of the guide sleeve; the bearing support assembly is arranged on the mounting plate and provided with a first bearing positioning groove used for positioning a first bearing on the cutter, and the first bearing positioning groove is provided with a first placing opening formed along the radial direction of the first bearing; wherein, the opening direction of the guide sleeve placing opening is the same as the opening direction of the first placing opening. The opening direction of the guide sleeve placing opening is set to be the same as the first opening direction of the placing opening, the mounting direction of the cutter assembly is unified, the assembled cutter assembly can be mounted in a whole group or dismounted in a whole group, and the speed of mounting gun drill type cutters can be improved.

Description

Horizontal drilling mechanism and machine tool

Technical Field

The application relates to the technical field of machining tools, in particular to a horizontal drilling mechanism and a machine tool.

Background

The used rifle drill class cutter of horizontal deep hole drilling lathe leads to rifle drill class cutter rigidity not enough because the draw ratio is bigger, consequently often need use the guide pin bushing in order to carry out guiding orientation to rifle drill class cutter. When the length of the gun drill type cutter exceeds a certain length, the bearing is arranged in the middle of the gun drill type cutter at a certain interval to enhance the rigidity of the gun drill type cutter, so that the gun drill type cutter is prevented from generating serious shaking in the machining process, and the machining effect and the service life of the gun drill type cutter are prevented from being influenced.

Because the inner diameter dimension specification of the guide sleeve and the bearing is used in cooperation with the diameter dimension specification of the gun drill type cutter, different cutters, guide sleeves and bearings need to be replaced when workpieces with different apertures are machined.

When a horizontal drilling mechanism in the related art is used for replacing gun drill type cutters with different sizes, usually, a guide sleeve and a first bearing are firstly installed on the horizontal drilling mechanism along the axial direction, a second bearing and a third bearing are installed on a cutter in advance, the cutter axially penetrates through the guide sleeve and the first bearing, the second bearing and the third bearing on the cutter are installed on the horizontal drilling mechanism along the radial direction, and due to the fact that the installation directions of parts related to the cutter are not uniform, the cutter needs to be installed and disassembled manually seriously, the speed of replacing the gun drill type cutter is slow, and the overall machining efficiency of a machine tool is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a horizontal drilling mechanism and a machine tool, and the speed of installing gun drill type cutters can be improved.

In a first aspect, an embodiment of the present application provides a horizontal drilling mechanism, including:

mounting a plate;

the guide sleeve positioning groove is used for positioning a guide sleeve on a cutter and is provided with a guide sleeve placing opening which is formed along the radial direction of the guide sleeve, and the guide sleeve on the cutter can be placed in the guide sleeve positioning groove through the guide sleeve placing opening;

the bearing support assembly is arranged on the mounting plate and provided with a first bearing positioning groove, the first bearing positioning groove is used for positioning a first bearing on a cutter, the first bearing positioning groove is provided with a first placing opening formed in the radial direction of the first bearing, and the first bearing on the cutter can be placed in the first bearing positioning groove through the first placing opening;

the opening direction of the guide sleeve placing opening is the same as the opening direction of the first placing opening.

Optionally, a first locking assembly is arranged on the guide sleeve seat, the first locking assembly has a first abutting end, and the first abutting end can move along the radial direction of the guide sleeve to abut the guide sleeve in the guide sleeve positioning groove.

Optionally, a second locking assembly is arranged on the guide sleeve seat, the second locking assembly is arranged opposite to the first locking assembly, the second locking assembly is provided with a second abutting end, the second abutting end can move along the radial direction of the guide sleeve, and the first abutting end can be matched with the second abutting end to abut the guide sleeve in the guide sleeve positioning groove.

Optionally, a third locking assembly is arranged on the bearing support assembly, the third locking assembly has a third abutting end, and the third abutting end can move along the radial direction of the first bearing to abut the first bearing in the first bearing positioning groove.

Optionally, the guide sleeve seat comprises a first part, a middle part and a second part, wherein the first part is connected to one end of the middle part, and the second part is connected to the other end of the middle part;

the guide sleeve positioning groove is arranged on the first part;

a second bearing positioning groove is formed in the second part and used for positioning a second bearing on a cutter, the second bearing positioning groove is provided with a second placing opening formed in the radial direction of the second bearing, and the second bearing on the cutter can be placed in the second bearing positioning groove through the second placing opening;

the middle part is provided with an inner cavity for chip removal, the inner cavity is communicated with the guide sleeve positioning groove and the second bearing positioning groove, the inner cavity is provided with a third placing opening formed along the radial direction of the cutter, and one part of the cutter can be accommodated in the inner cavity through the third placing opening;

the opening direction of the guide sleeve placing opening, the opening direction of the first placing opening, the opening direction of the second placing opening and the opening direction of the third placing opening are the same.

Optionally, a fourth locking assembly is arranged on the second portion, the fourth locking assembly has a fourth abutting end, and the fourth abutting end can move along the radial direction of the second bearing to abut the second bearing in the second bearing positioning groove.

Optionally, a cover assembly is disposed on the middle portion, the cover assembly includes a movable cover and a cover driving member, the movable cover is disposed on the middle portion in a reversible manner, and the cover driving member is configured to drive the movable cover to turn over so that the movable cover can close or open the third opening.

Optionally, the horizontal drilling mechanism further comprises a spindle box and a driving device, the spindle box is slidably disposed on the mounting plate, the spindle box is used for being connected with a tool shank of the tool, and the driving device can drive the spindle box to move along the feeding direction of the tool.

Optionally, the guide sleeve seat is slidably disposed on the mounting plate, and a sliding direction of the guide sleeve seat is along a feeding direction;

the bearing support assembly is slidably arranged on the mounting plate, the sliding direction of the bearing support assembly is along the feeding direction, and the bearing support assembly is arranged between the guide sleeve seat and the spindle box.

In a second aspect, embodiments of the present application further provide a machine tool, including the horizontal drilling mechanism described above.

The embodiment of the application provides a horizontal drilling mechanism and lathe, set up guide sleeve seat and bearing support assembly, be provided with the guide pin bushing constant head tank on the guide sleeve seat, the guide pin bushing constant head tank has the guide pin bushing of radially seting up along the guide pin bushing and places the mouth, guide pin bushing on the cutter can place the mouth through the guide pin bushing and place in the guide pin bushing constant head tank, bearing support assembly has first bearing constant head tank, first bearing constant head tank has the first mouth of placing of radially seting up along first bearing, first bearing on the cutter can place in first bearing constant head tank through first placing the mouth, thereby can realize gun drill class cutter unit's installation (wherein, cutter unit indicates the cutter of group dress bearing and guide pin bushing). And the opening direction of the guide sleeve placing opening is set to be the same as the opening direction of the first placing opening, so that the mounting direction of the cutter assembly is unified, the assembled cutter assembly can be mounted in a whole group or dismounted in a whole group, and the speed of mounting gun drill cutters can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a schematic structural diagram of a machine tool according to an embodiment of the present application.

Fig. 2 is a schematic structural view of the robot and the horizontal drilling mechanism in fig. 1.

Fig. 3 is a schematic structural view of the guide sleeve in fig. 2.

Fig. 4 is a schematic structural diagram of a horizontal drilling mechanism according to an embodiment of the present application.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a schematic structural view of the bearing support assembly of fig. 4.

Fig. 7 is a partial cross-sectional view of a guide sleeve seat provided in an embodiment of the present application.

Fig. 8 is a schematic structural view of the third locking assembly of fig. 6.

Fig. 9 is a schematic structural diagram of a guide sleeve seat and a cover assembly according to an embodiment of the present disclosure.

Fig. 10 is a schematic structural view of the fourth locking assembly of fig. 9.

Fig. 11 is a schematic structural view of the cover assembly of fig. 9.

Fig. 12 is a schematic structural diagram of a second type of tool according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, component, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The embodiment of the application provides a horizontal drilling mechanism, can improve the speed of installation gun drill class cutter. This will be explained below with reference to the drawings.

It should be noted that the terms "first", "second", and the like in the description and claims of the present application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order, and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The horizontal drilling mechanism 20 provided by the embodiment of the application is suitable for a horizontal drilling machine tool, in particular to a horizontal deep hole drilling machine tool. Referring to fig. 1, fig. 1 is a schematic structural diagram of a machine tool according to an embodiment of the present disclosure. The machine tool 1 may include a horizontal drilling mechanism 20, and a workpiece may be drilled by mounting a drilling tool on the horizontal drilling mechanism 20. For example, the machine tool 1 may further include a tool magazine 10 and a robot 30, the tool magazine 10 and the robot 30 are respectively disposed at one side of the horizontal drilling mechanism 20, a tool with a guide sleeve and a bearing assembled therein is placed in the tool magazine 10, the robot 30 may take out the tool with the guide sleeve and the bearing assembled therein from the tool magazine 10 and place the tool on the horizontal drilling mechanism 20, and the tool is driven to move by the horizontal drilling mechanism 20 to drill a workpiece, such as deep hole machining of the workpiece.

It should be noted that, in the horizontal deep hole drilling machine tool, because the length-diameter ratio of the gun drill type cutter used by the horizontal deep hole drilling machine tool is relatively large, the rigidity of the gun drill type cutter is insufficient, and therefore the guide sleeve is often needed to be used for guiding and positioning the gun drill type cutter. When the length of the gun drill type cutter exceeds a certain length, the bearing is arranged in the middle of the gun drill type cutter at a certain interval to enhance the rigidity of the gun drill type cutter, so that the gun drill type cutter is prevented from generating serious shaking in the machining process, and the machining effect and the service life of the gun drill type cutter are prevented from being influenced. Because the inner diameter dimension specification of the guide sleeve and the bearing is used in cooperation with the diameter dimension specification of the gun drill type cutter, different cutters, guide sleeves and bearings need to be replaced when workpieces with different apertures are machined. In the prior art, a guide sleeve, a bearing and a gun drill cutter are separately stored, for example, when the gun drill cutter needs to be assembled with one guide sleeve and three bearings, for convenience of understanding, the three bearings are respectively called as a first bearing, a second bearing and a third bearing, when workpieces with different apertures need to be machined, the guide sleeve and the first bearing are usually firstly installed on a horizontal drilling mechanism along the axial direction, the second bearing and the third bearing are installed on the cutter in advance, the cutter axially penetrates through the guide sleeve and the first bearing, and the second bearing and the third bearing on the cutter are installed on the horizontal drilling mechanism along the radial direction.

Based on this, the embodiment of the present application provides a horizontal drilling mechanism 20, which is suitable for mounting the assembled whole set of tool assemblies on the horizontal drilling mechanism 20, and replaces the scheme of separately mounting each component in the tool assemblies on the horizontal drilling mechanism 20 in the related art, thereby improving the tool mounting efficiency. Referring to fig. 2, fig. 2 is a schematic structural diagram of the robot and the horizontal drilling mechanism in fig. 1. The tool assembly may be a gun drill type tool, in particular a gun drill type tool of a relatively long length, such as up to 1 meter or more, assembled with a shank 1b, a first bearing 11d and a guide sleeve 1 c. It will be appreciated that the number of bearings may be adaptively selected according to the length of the tool, and the application is not limited thereto. In which the tools assembled with the respective accessories such as bearings and guide sleeves are previously received in the tool magazine 10, when the horizontal drilling mechanism 20 needs to be replaced, the assembled tools can be directly taken out of the tool magazine 10 and mounted in the horizontal drilling mechanism 20 in a whole set without individually mounting the respective parts of the tool assembly on the horizontal drilling mechanism 20. For example, in order to facilitate understanding, the present embodiment refers to the gun drill type tool with a large length-diameter ratio as the first type tool 1a, wherein the first type tool 1a has a tool shank 1b, such as a BT type tool shank commonly used in the prior art, and the tool shank 1b is used for being mounted on the spindle head 24 of the horizontal drilling mechanism 20. The drill end of the first type of tool 1a is provided with a guide sleeve 1c for guiding. As shown in fig. 3, fig. 3 is a schematic structural view of the guide sleeve in fig. 2. The guide sleeve 1c is a guide sleeve 1c commonly used in the prior art, and the guide sleeve 1c is provided with a third limiting groove 11c surrounding the circumference of the guide sleeve 1 c. The first bearing 11d is arranged between the tool shank 1b and the guide sleeve 1c, and prevents the first type tool 1a from generating serious shaking in the machining process.

Referring to fig. 4 to fig. 6 in combination with fig. 2, fig. 4 is a schematic structural view of a horizontal drilling mechanism according to an embodiment of the present disclosure, fig. 5 is an enlarged view of a portion a in fig. 4, and fig. 6 is a schematic structural view of a bearing support assembly in fig. 4. The horizontal drilling mechanism 20 provided by the embodiment of the application comprises a mounting plate 21, a guide sleeve seat 22 and a bearing support assembly 23, wherein the guide sleeve seat 22 is arranged on the mounting plate 21, a guide sleeve positioning groove 221 is arranged on the guide sleeve seat 22, the guide sleeve positioning groove 221 is used for positioning a guide sleeve 1c on a cutter, the guide sleeve positioning groove 221 is provided with a guide sleeve placing opening 222 which is formed along the radial direction of the guide sleeve 1c, and the guide sleeve 1c on the cutter can be placed in the guide sleeve positioning groove 221 through the guide sleeve placing opening 222. Bearing support subassembly 23 sets up on mounting panel 21, bearing support subassembly 23 has first bearing constant head tank 231, first bearing constant head tank 231 is used for fixing a position the first bearing 11d on the cutter, first bearing constant head tank 231 has the first mouth 232 of placing of radially seting up along first bearing 11d, first bearing 11d on the cutter can place in first bearing constant head tank 231 through first mouthful 232 of placing to can realize the installation of gun drill class cutter unit (wherein, cutter unit indicates the cutter of the equipment bearing and guide pin bushing). Wherein, the direction of seting up of placing mouthful 222 with the guide pin bushing and the direction of seting up of first mouthful 232 of placing sets up in the same one side, has unified cutter unit's installation direction for assembled cutter unit can be installed or the whole group is dismantled, thereby can improve the speed of installation gun drill class cutter. For example, when the tool assembly is placed on the horizontal drilling mechanism 20 from the top down, the guide bush placing opening 222 and the first placing opening 232 are opened upward in order to facilitate the placement of the tool assembly.

As shown in fig. 2 and 4, the horizontal drilling mechanism 20 further includes a spindle head 24 and a driving device 25, the spindle head 24 is slidably disposed on the mounting plate 21, for example, the spindle head 24 can be slidably mounted on the mounting plate 21 through a first slide rail 26, wherein the spindle head 24 is used for being connected with a tool shank 1b of a tool, the spindle head 24 drives the tool to rotate so that the tool can machine a workpiece, the spindle head 24 is connected to a driving end of the driving device 25, and the driving device 25 can drive the spindle head 24 to move along a feeding direction of the tool. The driving device 25 may include a first motor 251, a first lead screw 252, a first nut seat 253 and a first lead screw nut, the first lead screw 252 is rotatably mounted on the mounting plate 21 through the first nut seat 253, a motor shaft of the first motor 251 is fixedly connected to the first lead screw 252, the first motor 251 is configured to drive the first lead screw 252 to rotate, the first lead screw nut is threadedly connected to the first lead screw 252, and the spindle box 24 is mounted on the first lead screw nut, so that when the first motor 251 drives the first lead screw 252 to rotate, the first lead screw nut can drive the spindle box 24 to move, so that the tool can move close to the workpiece to process the workpiece.

In some embodiments, the guide sleeve seat 22 is slidably disposed on the mounting plate 21, a sliding direction of the guide sleeve seat 22 is along the feeding direction, wherein the guide sleeve seat 22 may be slidably disposed on the mounting plate 21 through a first sliding rail 26, a first driving assembly is disposed on the mounting plate 21, a driving end of the first driving assembly is fixedly connected to the guide sleeve seat 22, and the guide sleeve seat 22 is driven by the first driving assembly to slide along the first sliding rail 26, wherein the first driving assembly may be a motor module, or may be a hydraulic cylinder or an air cylinder, which is not limited herein as long as the first driving assembly can drive the guide sleeve seat 22 to move. It can be understood that, when the guide sleeve 1c on the cutter is positioned on the guide sleeve positioning groove 221, in the feeding direction, one end of the guide sleeve 1c close to the workpiece protrudes out of the guide sleeve positioning groove 221, and the guide sleeve seat 22 is arranged on the mounting plate 21 in a sliding manner, when the workpiece needs to be processed, the guide sleeve seat 22 can be moved to the workpiece, so that the guide sleeve 1c on the guide sleeve seat 22 can be in contact with the workpiece, the guiding effect of the guide sleeve 1c on the cutter can be effectively improved, and the cutter is not easy to break.

As shown in fig. 4, the bearing support assembly 23 is disposed between the guide sleeve holder 22 and the headstock 24, the bearing support assembly 23 is slidably disposed on the mounting plate 21, and the sliding direction of the bearing support assembly 23 is along the feed direction. Wherein, the bearing support assembly 23 can be slidably disposed on the mounting plate 21 through a second slide rail 27 disposed on the mounting plate 21. The first bearing 11d assembled to the cutter can be positioned in the first bearing positioning groove 231 of the bearing support assembly 23, and since the bearing support assembly 23 can slide relative to the mounting plate 21, the bearing support assembly 23 can also be slowly moved close to the guide sleeve seat 22 when the cutter moves in the feeding direction, thereby maximizing the feeding amount of the cutter. It will be appreciated that the first bearing 11d on the tool is capable of sliding axially relative to the tool.

In order to reset the spindle box 24, the bearing support assembly 23 can also be reset along with the spindle box, a pulling member can be arranged between the spindle box 24 and the bearing support assembly 23, it can be understood that the pulling member cannot be made of a hard material, so that the spindle box 24 is prevented from pushing against the bearing support assembly 23 when moving towards a direction close to the bearing support assembly 23, wherein the pulling member can be a chain. When the head stock 24 is reset, the head stock 24 is reset by the chain pulling the bearing support assembly 23.

It can be understood that when there are a plurality of first bearings 11d assembled on the tool, the bearing support assemblies 23 are correspondingly arranged in a plurality, such as when there are two first bearings 11d, the bearing support assemblies 23 are also arranged in two, and one bearing support assembly 23 correspondingly positions and supports one first bearing 11d, at this time, two adjacent bearing support assemblies 23 are connected through a pulling member, and the bearing support assembly 23 close to the headstock 24 is also connected with the headstock 24 through another pulling member, so that each bearing support assembly 23 can be pulled to be reset.

For example, referring to fig. 6, the bearing support assembly 23 includes a bearing support seat 233, the first bearing positioning slot 231 is disposed on the bearing support seat 233, and the bearing support seat 233 is slidably mounted on the second slide rail 27 through a slide block 234.

In some embodiments, please refer to fig. 7, fig. 7 is a partial cross-sectional view of a guide sleeve seat provided in an embodiment of the present application. In order to improve the positioning stability of the guide sleeve 1c, a first locking component 223 may be further disposed on the guide sleeve seat 22, the first locking component 223 has a first abutting end 2231, and the first abutting end 2231 can move along the radial direction of the guide sleeve 1c to abut the guide sleeve 1c in the guide sleeve positioning groove 221. The guide sleeve 1c can be fixed on the guide sleeve seat 22 by the cooperation of the first abutting end 2231 and the groove wall of the guide sleeve positioning groove 221.

In order to further improve the positioning stability of the guide sleeve 1c, the guide sleeve seat 22 is provided with a second locking component 224, the second locking component 224 is arranged opposite to the first locking component 223, the second locking component 224 is provided with a second abutting end 2241, the second abutting end 2241 can move along the radial direction of the guide sleeve 1c, and the first abutting end 2231 can be matched with the second abutting end 2241 to abut the guide sleeve 1c in the guide sleeve positioning groove 221. When the guide sleeve 1c is to be positioned, the first abutting end 2231 and the second abutting end 2241 move in opposite directions and abut against the wall of the guide sleeve 1c, and press the guide sleeve 1c against the guide sleeve positioning groove 221, so that the guide sleeve 1c can be stably positioned on the guide sleeve positioning groove 221. The guide sleeve 1c is a guide sleeve 1c commonly used in the prior art, and the guide sleeve 1c is provided with a third limiting groove 11c surrounding the circumference of the guide sleeve 1 c. In order to further improve the positioning stability of the guide sleeve 1c, as shown in fig. 3 and 5, a raised guide sleeve positioning portion 2211 may be disposed on the guide sleeve positioning groove 221, the guide sleeve positioning portion 2211 is adapted to the third limiting groove 11c, and when the guide sleeve 1c is positioned in the guide sleeve positioning groove 221, the guide sleeve positioning portion 2211 is clamped in the third limiting groove 11 c.

As shown in fig. 7, the first locking assembly 223 includes a first driving member 2232 and a first abutting member 2233 having a first abutting end 2231, the first driving member 2232 is disposed on the guide sleeve seat 22, and the first abutting member 2233 is disposed at the driving end of the first driving member 2232, wherein the shape of the first abutting end 2231 may be adapted to the shape of the guide sleeve 1c, such as the side of the first abutting end 2231 close to the guide sleeve 1c is disposed in an arc shape. The first driving member 2232 may be a push rod cylinder, and the first fastening member 2233 is fixedly connected to a piston rod of the push rod cylinder. When the guide sleeve 1c needs to be locked, the first abutting part 2233 is pushed by the first driving part 2232 to move towards the guide sleeve 1c, so that the first abutting end 2231 abuts against the guide sleeve 1c, and the locking device is convenient and fast.

As shown in fig. 7, the second locking assembly 224 includes a second driving member 2242 and a second tightening member 2243 having a second tightening end 2241, the second driving member 2242 is disposed on the guide sleeve seat 22, and the second tightening member 2243 is disposed at the driving end of the second driving member 2242, wherein the shape of the second tightening end 2241 can be adapted to the shape of the guide sleeve 1c, such as the side of the second tightening end 2241 close to the guide sleeve 1c is set to be arc-shaped. Wherein, the second driving piece 2242 can adopt a push rod cylinder, and the second abutting piece 2243 is fixedly connected on a piston rod of the push rod cylinder. When the guide sleeve 1c needs to be locked, the second abutting piece 2243 is pushed by the second driving piece 2242 to move towards the guide sleeve 1c, so that the second abutting end 2241 abuts against the guide sleeve 1c, and the locking device is convenient and fast.

In order to improve the positioning stability of the first bearing 11d, as shown in fig. 6 and 8, fig. 8 is a schematic structural view of the third locking assembly in fig. 6. A third locking assembly 235 may be disposed on the bearing support assembly 23, such as disposing the third locking assembly 235 on the bearing support base 233, the third locking assembly 235 having a third abutting end 2351, the third abutting end 2351 being capable of moving along the radial direction of the first bearing 11d to abut the first bearing 11d in the first bearing positioning slot 231. In order to further improve the positioning stability of the first bearing 11d, as shown in fig. 6, two raised bearing positioning portions 2311 may be disposed on the first bearing positioning groove 231, the two bearing positioning portions 2311 are disposed along the axial direction of the first bearing 11d at intervals, so that the first bearing 11d can be placed between the two bearing positioning portions 2311, the axial movement of the first bearing 11d can be effectively limited by the provision of the bearing positioning portions 2311, and the bearing positioning portions 2311 and the third abutting end 2351 cooperate together to stably fix the first bearing 11 d.

As shown in fig. 8, the third locking assembly 235 includes a third driving member 2352 and a third abutting member 2353 having a third abutting end 2351, the third driving member 2352 is disposed on the bearing support assembly 23, such as the third driving member 2352 is disposed on the bearing support 233, the third abutting member 2353 is disposed at the driving end of the third driving member 2352, wherein the shape of the third abutting end 2351 can be adapted to the shape of the first bearing 11d, such as the side of the third abutting end 2351 near the first bearing 11d is disposed in an arc shape. The third driving member 2352 can be a push rod cylinder, and the third abutting member 2353 is fixedly connected to a piston rod of the push rod cylinder. When the first bearing 11d needs to be locked, the third driving member 2352 pushes the third support member 2353 to move towards the first bearing 11d, so that the third support end 2351 supports against the first bearing 11d, which is convenient and fast.

In order to more clearly describe the specific structure of the guide sleeve seat 22, the structure of the guide sleeve seat 22 will be described below with reference to the accompanying drawings.

Note that, a plurality of bearings are assembled to the gun drill type cutter, and for convenience of understanding, as shown in fig. 2, the bearing closest to the guide bush 1c than the other bearings is referred to as a second bearing 12 d. It will be appreciated that the tool is able to move in the feed direction relative to the second bearing 12d when the tool is being fed.

For example, please refer to fig. 4, fig. 5 and fig. 9, and fig. 9 is a schematic structural diagram of a guide sleeve seat and a cover assembly according to an embodiment of the present application. The guide sleeve 22 includes a first section 225, a middle section 226, and a second section 227, the first section 225 being attached to one end of the middle section 226, and the second section 227 being attached to the other end of the middle section 226. It will be appreciated that the first section 225 is located at one end of the intermediate section 226 adjacent the workpiece and the second section 227 is located at one end of the intermediate section 226 adjacent the headstock 24. Wherein the guide sleeve positioning groove 221 is disposed on the first portion 225; the second portion 227 is provided with a second bearing positioning groove 2271, the second bearing positioning groove 2271 is used for positioning the second bearing 12d on the cutter, the second bearing positioning groove 2271 is provided with a second placing opening 2272 opened along the radial direction of the second bearing 12d, and the second bearing 12d on the cutter can be placed in the second bearing positioning groove 2271 through the second placing opening 2272. When the second bearing 12d is mounted in the second bearing positioning groove 2271, the cutting fluid is prevented from flowing out of the second bearing positioning groove 2271.

As shown in fig. 5, the middle portion 226 is provided with an inner cavity 2261 for chip removal, the inner cavity 2261 is communicated with the guide sleeve positioning groove 221 and the second bearing positioning groove 2271, the inner cavity 2261 is provided with a third placing port 2262 formed along the radial direction of the cutter, and a part of the cutter can be accommodated in the inner cavity 2261 through the third placing port 2262; it will be appreciated that the cavity 2261 is in communication with the guide sleeve positioning slot 221, and that by providing the cavity 2261 in the intermediate portion 226, chips and chips fluid can be readily removed from the cavity 2261 during machining of a workpiece by a tool. The opening direction of the guide sleeve placing opening 222, the opening direction of the first placing opening 232, the opening direction of the second placing opening 2272 and the opening direction of the third placing opening 2262 are the same. For example, as shown in fig. 4 to 6, the opening direction of the guide bush placing port 222, the opening direction of the first placing port 232, the opening direction of the second placing port 2272, and the opening direction of the third placing port 2262 are all opened upward. The direction of the guide sleeve placing opening 222, the direction of the first placing opening 232, the direction of the second placing opening 2272 and the direction of the third placing opening 2262 are arranged on the same side, so that the mounting direction of the cutter assembly is unified, the assembled cutter assembly can be mounted or dismounted in the whole group, and the speed of mounting the gun drill type cutter can be improved.

Referring to fig. 10 in conjunction with fig. 9, in order to improve the positioning stability of the second bearing 12d, fig. 10 is a schematic structural diagram of the fourth locking assembly in fig. 9. A fourth locking assembly 228 may be provided on the second portion 227, the fourth locking assembly 228 having a fourth abutment end 2281, the fourth abutment end 2281 being movable in a radial direction of the second bearing 12d to abut the second bearing 12d within the second bearing positioning slot 2271.

The fourth locking assembly 228 includes a fourth driving member 2282 and a fourth abutting member 2283 having a fourth abutting end 2281, the fourth driving member 2282 is disposed on the second portion 227, the fourth abutting member 2283 is disposed at the driving end of the fourth driving member 2282, wherein the shape of the fourth abutting end 2281 can be adapted to the shape of the second bearing 12d, such as the side of the fourth abutting end 2281 close to the second bearing 12d is disposed in an arc shape. The fourth driving element 2282 may adopt a push rod cylinder, and the fourth fastening element 2283 is fixedly connected to a piston rod of the push rod cylinder. When the second bearing 12d needs to be locked, the fourth driving member 2282 pushes the fourth abutting member 2283 to move toward the second bearing 12d, so that the fourth abutting end 2281 abuts against the second bearing 12d, which is convenient and fast.

In order to prevent the chips from splashing out of the third placement opening 2262 of the inner cavity 2261, please refer to fig. 11 in combination with fig. 9, and fig. 11 is a schematic structural diagram of the cover assembly in fig. 9. The cover assembly 28 may be disposed on the middle portion 226, and the cover assembly 28 includes a movable cover 281 and a cover driving member 282, the movable cover 281 is disposed on the middle portion 226 in a reversible manner, and the cover driving member 282 is used for driving the movable cover 281 to rotate so as to enable the movable cover 281 to close or open the third placing opening 2262.

Illustratively, as shown in fig. 11, the movable cover 281 is reversibly disposed on the middle portion 226 through a rotating shaft, wherein the rotating shaft is provided with a gear 283, an output end of the cover driving unit 282 is provided with a rack 284, the gear 283 is engaged with the rack 284, when the cover driving unit 282 drives the rack 284 to move, the rack 284 can drive the gear 283 to rotate so as to drive the rotating shaft to rotate, thereby realizing the opening and closing action of the movable cover 281. An intermediate gear 285 may be further disposed between the gear 283 and the rack 284, the intermediate gear 285 is respectively engaged with the gear 283 and the rack 284 to perform a deceleration function, the cover driving member 282 may be a push rod cylinder, and the rack 284 is disposed on a piston rod of the push rod cylinder. Specifically, the push rod cylinder is disposed vertically upward to push the rack 284 to move up and down.

In other embodiments, as shown in fig. 1, in order to enable the horizontal drilling mechanism 20 to move up and down to adapt to the height of the workpiece, a vertical driving mechanism 29 may be further provided, the mounting plate 21 in the horizontal drilling mechanism 20 is connected with the driving end of the vertical driving mechanism 29, and the vertical driving mechanism 29 drives the mounting plate 21 to move up and down so as to realize the up and down movement of the horizontal drilling mechanism 20. It is understood that the vertical driving mechanism 29 can be a linear module, and it is also possible to drive the horizontal drilling mechanism 20 to move up and down by other driving elements such as an air cylinder or a hydraulic cylinder, which is not limited herein.

It can be understood that the horizontal drilling mechanism 20 provided in the embodiment of the present application may also be suitable for mounting a tool with a short length, and for the convenience of understanding, the tool with a short length is referred to as a second type tool 1e in the embodiment of the present application, as shown in fig. 12, and fig. 12 is a schematic structural diagram of the second type tool provided in the embodiment of the present application. At this time, the second type tool 1e needs to be used in cooperation with the tool bar 1f, wherein the tool bar 1f has a shank 1b for mounting on the spindle head 24, such as the tool bar 1f has a BT type shank which is commonly used in the prior art, and one end of the tool bar 1f, which is far away from the shank 1b, is provided with a collet chuck for clamping the second type tool 1e, such as an ER standard collet chuck, which may also be called as a collet chuck in other terms, and the tool bar 1f plays a role of lengthening the length of the second type tool 1 e. When a tool having a short length is required, the tool having the tool bar 1f mounted thereon is directly mounted on the headstock 24. It will be appreciated that the blade bar 1f itself has sufficient rigidity. So that no bearing is required on the tool holder 1 f.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The horizontal drilling mechanism and the machine tool provided by the embodiment of the application are described in detail, and the principle and the implementation mode of the application are explained by applying specific examples, and the description of the embodiment is only used for helping to understand the method and the core idea of the application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A horizontal drilling mechanism, comprising:

mounting a plate;

2. The horizontal drilling mechanism as claimed in claim 1, wherein the guide sleeve seat is provided with a first locking assembly, the first locking assembly having a first abutting end, the first abutting end being capable of moving in a radial direction of the guide sleeve to abut the guide sleeve in the guide sleeve positioning groove.

3. The horizontal drilling mechanism as claimed in claim 2, wherein a second locking assembly is disposed on the guide sleeve seat, the second locking assembly is disposed opposite to the first locking assembly, the second locking assembly has a second abutting end, the second abutting end is capable of moving along a radial direction of the guide sleeve, and the first abutting end is capable of cooperating with the second abutting end to abut the guide sleeve in the guide sleeve positioning groove.

4. The horizontal drilling mechanism according to claim 1, wherein a third locking assembly is provided on the bearing support assembly, the third locking assembly having a third abutment end movable in a radial direction of the first bearing to abut the first bearing in the first bearing positioning groove.

5. The horizontal drilling mechanism of claim 1, wherein the guide housing comprises a first portion, an intermediate portion, and a second portion, the first portion being connected at one end of the intermediate portion, the second portion being connected at the other end of the intermediate portion;

the guide sleeve positioning groove is arranged on the first part;

6. The horizontal drilling mechanism according to claim 5, wherein a fourth locking assembly is provided on the second portion, the fourth locking assembly having a fourth abutment end movable in a radial direction of the second bearing to abut the second bearing in the second bearing positioning groove.

7. The horizontal drilling mechanism according to claim 5, wherein a cover assembly is disposed on the middle portion, the cover assembly comprises a movable cover and a cover driving member, the movable cover is reversibly disposed on the middle portion, and the cover driving member is used for driving the movable cover to be overturned so that the movable cover can close or open the third placing port.

8. The horizontal drilling mechanism according to claim 1, further comprising a main spindle box slidably disposed on the mounting plate, and a driving device for connecting the main spindle box to a shank of the tool, wherein the driving device can drive the main spindle box to move along a feeding direction of the tool.

9. The horizontal drilling mechanism according to claim 8, wherein the guide sleeve seat is slidably provided on the mounting plate, a sliding direction of the guide sleeve seat being along a feeding direction;

10. A machine tool comprising a horizontal drilling mechanism according to any one of claims 1 to 9.