CN215880711U

CN215880711U - Cutter loosening device and drilling and tapping center

Info

Publication number: CN215880711U
Application number: CN202220055630.9U
Authority: CN
Inventors: 叶荣雄; 曾一健; 周文聪; 赖建延; 倪永金; 金志伟; 高云峰; 其他发明人请求不公开姓名
Original assignee: Shenzhen Han Nationality Machine Tool Technology Co ltd; Han s Laser Technology Industry Group Co Ltd
Current assignee: Shenzhen Han Nationality Machine Tool Technology Co ltd; Han s Laser Technology Industry Group Co Ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-02-22
Anticipated expiration: 2032-01-11

Abstract

The utility model discloses a cutter loosening device and a drilling and tapping center, wherein the cutter loosening device comprises: one side of the box body is connected with the rack in a sliding manner; the cutter loosening assembly comprises a linkage arm and a cutter loosening arm, and the linkage arm is in rotating connection with the cutter loosening arm to define that the linkage arm and the cutter loosening arm rotate along an axis; the cutter loosening assembly further comprises an adjusting piece, and the adjusting piece is connected with the linkage arm and the cutter loosening arm in an adjustable mode; the linkage arm and the cutter loosening arm are rotationally connected with the box body along the axis; the box body slides upwards relative to the rack, the knife loosening driving piece can drive the linkage arm to move upwards around the axis, and the knife loosening arm moves downwards around the axis. The tool loosening device in the technical scheme has the advantages that the mounting process of the tool loosening assembly is simple, the tool loosening assembly can be accurately matched with other parts, and the tool loosening operation is effectively completed.

Description

Cutter loosening device and drilling and tapping center

Technical Field

The utility model relates to the technical field of drilling and tapping, in particular to a cutter loosening device and a drilling and tapping center applying the cutter loosening device.

Background

The drilling and tapping center is a comprehensive machine tool integrating machining procedures such as cutting, drilling, tapping and the like, is high in working efficiency and machining precision, and is a better choice for comprehensive machining in the industry.

Because the center of attacking of brill can need face the problem of frequent tool changing in the operation, the loosening cutter subassembly that is used for the tool changing under the normal conditions need carry out diversified debugging in the installation for the relative position cooperation of each spare part with it is accurate, just can effectually loosen the sword, makes the installation operation of loosening cutter subassembly comparatively loaded down with trivial details.

Disclosure of Invention

The utility model provides a cutter loosening device, wherein the installation process of a cutter loosening assembly in the cutter loosening device is simple, and the cutter loosening device can be accurately matched with other parts to effectively finish cutter loosening operation.

The utility model provides a cutter loosening device which is arranged on a rack, and comprises:

one side of the box body is connected with the rack in a sliding manner; and

the cutter loosening assembly comprises a linkage arm and a cutter loosening arm, and the linkage arm is in rotating connection with the cutter loosening arm to define that the linkage arm and the cutter loosening arm rotate along an axis; the cutter loosening assembly further comprises an adjusting piece, and the adjusting piece is connected with the linkage arm and the cutter loosening arm in an adjustable mode; the linkage arm and the cutter loosening arm are rotationally connected with the box body along the axis;

the box body slides upwards relative to the rack, the knife loosening driving piece can drive the linkage arm to move upwards around the axis, and the knife loosening arm moves downwards around the axis.

Optionally, the knife loosening assembly further comprises a rotating shaft, the rotating shaft is rotatably connected to the box body, the knife loosening arm is fixed to the rotating shaft and is provided with a knife loosening adjusting portion extending towards one side of the rotating shaft and a knife loosening portion extending towards the other side of the rotating shaft, the linkage arm and the knife loosening adjusting portion are acute angles, and the adjusting piece is adjustably connected with the linkage arm and the knife loosening adjusting portion.

Optionally, the linkage arm includes a linkage portion and a switching portion, the linkage portion is rotatably connected to the rotating shaft, one end of the switching portion is rotatably connected to the linkage portion, and the other end is a free end; the adaptor part can rotate relative to the linkage part until the free end faces the cutter loosening adjusting part, and the adjusting piece is adjustably connected with the free end of the adaptor part and the cutter loosening adjusting part.

Optionally, the free end of the adapter part is provided with an adjusting hole; the cutter loosening adjusting part is provided with a through hole;

the adjusting piece comprises a first connecting part, the first connecting part is arranged in the through hole in a penetrating mode, one end of the first connecting part is arranged in the adjusting hole in a penetrating mode, and the first connecting part is adjustably connected with the free end of the switching part; the other end of the first connecting portion stops at one side of the cutter loosening adjusting portion, which deviates from the switching portion.

Optionally, the free end of the adapter portion has a connection surface facing the unclamping adjusting portion, and the adjusting hole is opened in the connection surface.

Optionally, the via hole is a strip-shaped hole, and the extending direction of the via hole is consistent with the moving direction of the free end of the adapter part.

Optionally, the adjusting part includes a second connecting portion, the knife loosening adjusting portion is provided with a connecting hole, the second connecting portion penetrates through the connecting hole and is adjustably connected with the knife loosening adjusting portion, and one end of the second connecting portion abuts against the adapter portion.

Optionally, the linkage portion includes a connecting shaft and two connecting rods disposed opposite to each other, one end of each of the two connecting rods is rotatably connected to the rotating shaft, and the other end of each of the two connecting rods extends in a direction away from the rotating shaft and is connected to the connecting shaft; one end of the switching part is rotatably connected to the connecting shaft in an area between the two connecting rods;

the tool loosening arm is fixed on the rotating shaft in the area between the two connecting rods.

Optionally, the pine sword portion has pine sword linkage segment and pine sword section, the pine sword section is two, the pine sword linkage segment is fixed in the pivot, two the one end of pine sword section is connected the pine sword linkage segment, and the other end orientation is kept away from the direction of pine sword linkage segment extends.

Optionally, the box body is provided with an installation space and an installation hole communicated with the installation space, the unclamping arm is accommodated in the installation space, and at least part of the linkage arm is accommodated in the installation space and can contact the unclamping driving part through the installation hole;

the box body slides upwards relative to the rack, the cutter loosening driving piece can drive the linkage arm to move upwards around the axis, and the cutter loosening arm moves downwards around the axis.

The utility model also provides a drilling and tapping center, which comprises a frame, a workbench, a cutter shaft and a cutter loosening device;

the knife loosening device is arranged on the frame and comprises:

one side of the box body is connected with the rack in a sliding manner; and

a cutter loosening driving piece is arranged on the rack, the box body slides upwards relative to the rack, the cutter loosening driving piece can drive the linkage arm to move upwards around the axis, and the cutter loosening arm moves downwards around the axis;

the worktable is installed on the rack, a box body on the cutter loosening device is connected to the rack in a sliding mode, the cutter shaft is connected with the box body, and a cutter on the cutter shaft can process a workpiece on the worktable.

In the technical scheme of the utility model, the cutter loosening assembly comprises the linkage arm and the cutter loosening arm which are rotationally connected, and the included angle between the cutter loosening arm and the linkage arm can be adjusted in the process that the cutter loosening arm rotates relative to the linkage arm. The adjusting piece can fix the unclamping arm and the linkage arm under the condition that the relative positions of the unclamping arm and the linkage arm are adjusted to be proper, so that the unclamping arm and the linkage arm can be kept in rigid connection at a proper included angle. The position of the linkage arm relative to the cutter loosening driving piece can be adjusted through adjusting the included angle between the linkage arm and the cutter loosening arm, and the position of the cutter loosening arm relative to the cutter shaft can be adjusted.

When the tool loosening device is applied to drilling and tapping centers with different structures, the distance between the axis of the tool loosening assembly rotating relative to the frame and the tool loosening driving piece can be different after the box body is installed on the frame, and the distance between the linkage arm and the tool loosening driving piece can be adjusted through the rotation of the linkage arm relative to the axis, so that the tool loosening driving piece can effectively drive the linkage arm in the tool loosening operation process; similarly, the distance between the axis of the cutter loosening assembly rotating relative to the rack and the cutter shaft can be different, and the distance between the cutter loosening arm and the cutter shaft can be adjusted through the rotation of the cutter loosening arm relative to the axis, so that the cutter loosening arm can effectively drive the cutter shaft to perform cutter loosening action in the cutter loosening operation process. Therefore, the included angle between the cutter loosening arm and the linkage arm can be changed through the adjusting piece by the cutter loosening assembly, so that the cutter loosening assembly can be suitable for installation under different conditions.

The cutter loosening device using the cutter loosening assembly does not need to adjust other parts in the installation process, or only needs to simply adjust other parts, can meet the movement requirement, is simple and quick in the installation process, can be accurately matched with other parts, and effectively completes cutter loosening operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a drilling and tapping center according to an embodiment of the present invention;

FIG. 2 is a schematic view of the box body and the cutter loosening assembly in FIG. 1;

FIG. 3 is a schematic view of the box and the unclamp assembly of FIG. 2 from another perspective;

FIG. 4 is a schematic view of the structure of FIG. 1 showing the matching of the column, the unclamping assembly and the knife shaft;

FIG. 5 is a schematic view of the unclamp assembly of FIG. 1;

FIG. 6 is a schematic view of the unclamp assembly of FIG. 5 from another perspective;

fig. 7 is a schematic view of the loose knife assembly of fig. 1 in cooperation with a loose knife drive.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Drilling and tapping center	1531a	Via hole
10	Knife loosening device	1531b	Connecting hole
				11	Box body	1533	Loosening knife part
111	Installation space	1533a	Loose knife connecting section
				113	Mounting hole	1533b	Loose blade section
14	Loose knife driving piece	161	Reset connecting block
				141	Guide slope	163	Reset piece
143	Guide plane	17	Adjusting piece
				15	Loose knife assembly	171	First connecting part
151	Linkage arm	173	Second connecting part
				1511	Linkage part	18	Rotating shaft
1511a	Connecting shaft		19					Tool magazine subassembly
				1511b	Connecting rod		20		Cutter shaft
1513	Switching part	30	Working table
				1513a	Connecting surface	40	Rack
1513b	Adjusting hole	41	Upright post
				153	Tool loosening arm	42	Base seat
1531	Adjusting part of loose knife	43	Small column

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a tool loosening device 10, wherein the tool loosening device 10 can be applied to a drilling and tapping center 100, and the tool loosening device 10 is mounted on a frame 40 of the drilling and tapping center 100 and can perform a tool loosening operation on a cutter shaft 20 of the drilling and tapping center 100.

Referring to fig. 2, in an embodiment of the present invention, the knife loosening device 10 may include: a case 11 and a unclamp assembly 15. Referring to fig. 4, the frame 40 is provided with a loose knife driving member 14; with reference to fig. 5, the unclamping assembly 15 includes a linkage arm 151 and an unclamping arm 153, and the linkage arm 151 and the unclamping arm 153 are rotatably connected to define that the linkage arm 151 and the unclamping arm 153 rotate along an axis; the cutter loosening assembly 15 further comprises an adjusting piece 17, and the adjusting piece 17 is adjustably connected with the linkage arm 151 and the cutter loosening arm 153; the linkage arm 151 and the cutter loosening arm 153 are rotationally connected with the box body 11 along the axis;

the box 11 slides upwards relative to the frame 40, and the unclamp driving part 14 drives the linkage arm 151 to move upwards around the axis and the unclamp arm 153 to move downwards around the axis.

In the embodiment of the utility model, in the process that the box body 11 slides upwards relative to the frame 40, the knife loosening driving part 14 drives the linkage arm 151 to move upwards around the axis, and as the linkage arm 151 and the knife loosening arm 153 are connected by the adjusting part 17, the relative position of the linkage arm 151 and the knife loosening arm 153 can be kept unchanged, and under the driving action of the linkage arm 151, the knife loosening arm 153 can move downwards around the axis to press the knife shaft 20 of the drilling and tapping center 100, and the knife shaft 20 can perform knife loosening action under the pressing action of the knife loosening arm 153.

Because the unclamping assembly 15 comprises the linkage arm 151 and the unclamping arm 153 which are rotatably connected, the included angle between the unclamping arm 153 and the linkage arm 151 can be adjusted in the rotating process of the unclamping arm 153 relative to the linkage arm 151. The adjusting part 17 can fix the unclamping arm 153 and the linkage arm 151 under the condition that the relative positions of the unclamping arm 153 and the linkage arm 151 are adjusted to be proper, so that the unclamping arm 153 and the linkage arm can keep rigid connection at a proper included angle. By adjusting the included angle between the linkage arm 151 and the unclamping arm 153, the position of the linkage arm 151 relative to the unclamping driving part 14 can be adjusted, and the position of the unclamping arm 153 relative to the cutter shaft 20 can be adjusted.

When the tool loosening device 10 is applied to drilling and tapping centers 100 with different structures, after the box body 11 is installed on the rack 40, the distances from the axis of the tool loosening assembly 15 rotating relative to the rack 40 to the tool loosening driving piece 14 may be different, and the distance from the linkage arm 151 to the tool loosening driving piece 14 can be adjusted through the rotation of the linkage arm 151 relative to the axis, so that the tool loosening driving piece 14 can effectively drive the linkage arm 151 in the tool loosening operation process; similarly, the distance from the axis of the cutter loosening assembly 15 rotating relative to the frame 40 to the cutter shaft 20 may also be different, and the distance from the cutter loosening arm 153 to the cutter shaft 20 can be adjusted through the rotation of the cutter loosening arm 153 relative to the axis, so that the cutter loosening arm 153 can effectively drive the cutter shaft 20 to perform cutter loosening action during cutter loosening operation. Therefore, the knife loosening assembly 15 can change the included angle between the knife loosening arm 153 and the linkage arm 151 through the adjusting piece 17, so that the knife loosening assembly 15 can be suitable for installation under different conditions.

The cutter loosening device 10 with the cutter loosening assembly 15 does not need to adjust other parts in the installation process, or only needs to simply adjust other parts, the motion requirements can be met, the installation process is simple and rapid, and the cutter loosening device can be accurately matched with other parts, so that the cutter loosening operation is effectively completed.

Referring to fig. 5 and 6, in the above embodiment, the unclamping assembly 15 further includes a rotating shaft 18, the rotating shaft 18 is rotatably connected to the box 11, the unclamping arm 153 is fixed to the rotating shaft 18 and has a unclamping adjustment portion 1531 extending toward one side of the rotating shaft 18 and a unclamping portion 1533 extending toward the other side of the rotating shaft 18, an included angle between the linkage arm 151 and the unclamping adjustment portion 1531 is an acute angle, and the adjusting member 17 adjustably connects the linkage arm 151 and the unclamping adjustment portion 1531.

Under this structure, the unclamping adjusting part 1531 and the unclamping part 1533 may be an integrated structure or a split structure, and are both fixedly connected to the rotating shaft 18. The unclamp adjusting portion 1531 and the unclamp portion 1533 may be respectively located on opposite sides of the shaft 18. The unclamping arm 153 is connected with the linkage arm 151 through the unclamping adjusting part 1531, so that the adjustment of the adjustment part 17 on the linkage arm 151 and the unclamping arm 153 is positioned far away from the unclamping part 1533, and the adjustment part 17 does not affect the unclamping action of the unclamping arm 153. Under this structure, the linkage arm 151 and the unclamping part 1533 form an obtuse angle, so that the unclamping component 15 can effectively transmit the driving force of one side of the box body 11 to the other side of the box body 11, and the unclamping part 1533 effectively completes the unclamping action.

With reference to fig. 6, in the above embodiment, the linkage arm 151 includes a linkage portion 1511 and an adapter portion 1513, the linkage portion 1511 is rotatably connected to the rotating shaft 18, one end of the adapter portion 1513 is rotatably connected to the linkage portion 1511, and the other end is a free end; the adaptor 1513 can rotate relative to the linkage 1511 until the free end faces the unclamping adjustment part 1531, and the adjustment member 17 can adjustably connect the free end of the adaptor 1513 and the unclamping adjustment part 1531.

The switching portion 1513 can rotate relative to the linkage portion 1511 to adjust the position at which the linkage arm 151 is connected with the unclamping adjusting portion 1531, so that the adjusting member 17 can more stably and effectively fix the linkage arm 151 and the unclamping arm 153, and the relative position of the linkage arm 151 and the unclamping arm 153 is ensured to be kept unchanged.

In the above embodiment, the free end of the adaptor 1513 is provided with the adjusting hole 1513 b; the unclamping adjustment part 1531 is provided with a via hole 1531 a;

the adjusting member 17 includes a first connecting portion 171, the first connecting portion 171 is disposed through the through hole 1531a, and one end of the first connecting portion 171 is disposed through the adjusting hole 1513b, and adjustably connects to the free end of the adapting portion 1513; the other end of the first connection portion 171 stops at a side of the unclamping adjustment portion 1531 away from the adaptor portion 1513.

Through the adjustment of the first connection portion 171, the length of the first connection portion 171 penetrating through the adjustment hole 1513b is gradually lengthened, and one end of the first connection portion 171, which is far away from the adaptor portion 1513, abuts against the unclamping adjustment portion 1531, so as to drive the unclamping adjustment portion 1531 to move toward the direction close to the adaptor portion 1513.

In the above embodiment, the free end of the adaptor 1513 has the connection surface 1513a, the connection surface 1513a faces the unclamping adjustment portion 1531, and the adjustment hole 1513b is opened on the connection surface 1513 a.

After the included angle between the linkage arm 151 and the unclamping arm 153 is adjusted, the adapter 1513 can rotate relative to the linkage 1511, so that the connection surface 1513a of the free end of the adapter 1513 faces the unclamping adjusting part 1531, and the adapter 1513 and the unclamping adjusting part 1531 are fixed by the adjusting member 17. Specifically, after one end of the first connection portion 171 of the adjustment member 17 passes through the through hole 1531a of the unclamping adjustment portion 1531, the adjustment hole 1513b of the adapter portion 1513 is penetrated through, at this time, the first connection portion 171 penetrates through the adjustment hole 1513b in the direction perpendicular to the connection surface 1513a, so that the first connection portion 171 and the adjustment hole 1513b are well matched, and the connection between the first connection portion 171 and the adapter portion 1513 is more stable and effective.

In the above embodiment, the inner wall of the adjusting hole 1513b may be provided with an internal thread, and one end of the first connection portion 171 connected to the adaptor portion 1513 is provided with an external thread.

Referring to fig. 6, in the above embodiment, the via hole 1531a may be a strip-shaped hole, and the extending direction of the via hole 1531a is consistent with the moving direction of the free end of the adaptor 1513. When the adaptor 1513 rotates relative to the linkage portion 1511, so that the connection surface 1513a of the free end of the adaptor 1513 directly faces the unclamping adjustment portion 1531, the adjustment holes 1513b on the adaptor 1513 correspond to different positions of the unclamping adjustment portion 1531, when the via hole 1531a is a strip-shaped hole, the adaptor 1513 rotates relative to the linkage portion 1511, the adjustment holes 1513b on the adaptor 1513 may correspond to different positions of the via hole 1531a in the extending direction, and the first connection portion 171 can pass through the via hole 1a corresponding to the adjustment hole 1513b, so that the first connection portion 171 can pass through the adjustment hole 1533b accurately after passing through the via hole 1531 a.

In the above embodiment, the adjusting member 17 further includes the second connecting portion 173, the unclamping adjustment portion 1531 is provided with a connecting hole 1531b, the second connecting portion 173 is disposed through the connecting hole 1531b and adjustably connected to the unclamping adjustment portion 1531, and one end of the second connecting portion 173 abuts against the adaptor portion 1513.

Through the adjustment of the second connection portion 173, when the second connection portion 173 is inserted into the connection hole 1531b at different positions in the extending direction thereof, the distance between the unclamping adjustment portion 1531 and the adapting portion 1513 is changed.

The inner wall of the connection hole 1531b may be provided with an internal thread, and the second connection part 173 may be provided with an external thread for connecting the internal thread.

Under the matching action of the first connecting portion 171 and the second connecting portion 173, the positions of the unclamping adjusting portion 1531 and the adapting portion 1513 can be kept relatively fixed, so that the linkage arm 151 and the unclamping arm 153 of the unclamping assembly 15 can be connected in a rigid state, and the two can realize synchronous motion.

With reference to fig. 6, in the above embodiment, the linkage portion 1511 includes a connection shaft 1511a and two connection rods 1511b disposed oppositely, one end of each of the two connection rods 1511b is rotatably connected to the rotation shaft 18, and the other end of each of the two connection rods extends away from the rotation shaft 18 and is connected to the connection shaft 1511 a; one end of the adaptor 1513 is rotatably connected to the connection shaft 1511a in a region between the two connection rods 1511 b;

the unclamp arm 153 is fixed to the spindle 18 in a region between the two connecting rods 1511 b. That is, one end of the unclamping portion 1531 is fixed to the rotating shaft 18 between the two connecting rods and extends away from the rotating shaft 18, and one end of the unclamping portion 1533 is fixed to the rotating shaft 18 between the two connecting rods and extends away from the unclamping portion 1531.

The linkage arm 151 is connected with the rotating shaft 18 on the two opposite sides across the cutter loosening arm 153 in the extending direction of the rotating shaft 18, so that the linkage arm 151 can transmit the driving force of the cutter loosening driving part 14 to the cutter loosening arm 153 more efficiently under the driving of the cutter loosening driving part 14, and the cutter loosening arm 153 can press the cutter shaft 20 efficiently.

Referring further to fig. 5, in the above embodiment, the unclamping portion 1533 has two unclamping

sections

1533a and 1533b, the two unclamping sections 1533b are fixed to the rotating shaft 18, the unclamping section 1533a is fixed to the rotating shaft 18, and one end of each of the two unclamping sections 1533b is connected to the unclamping section 1533a, and the other end extends away from the unclamping section 1533 a.

When the tool unclamping device 10 is applied to the drilling and tapping center 100, the two tool unclamping sections 1533b can be respectively located at two opposite sides of the tool shaft 20, and can synchronously press the tool shaft 20 downwards, so that the tool unclamping device 10 can more stably and effectively press the tool shaft 20 in the tool unclamping process.

The two unclamping sections 1533b can enclose the unclamping connecting section 1533a to form an arc-shaped space, and the arc-shaped space matches with the outer contour of the arbor 20, so that the arbor 20 can be effectively accommodated in or partially accommodated in the arc-shaped space.

In the above embodiment, the rack 40 has an installation surface facing the box 11, the loose blade driving member 14 is convexly arranged on the installation surface, the loose blade driving member 14 includes the guide inclined surface 141 and the guide plane 143 which are connected, the guide inclined surface 141 gradually approaches the box 11 from bottom to top, the guide plane 143 is connected with the upper end of the guide inclined surface 141 and extends upward, and the distance between the guide plane 143 and the box 11 from bottom to top is the same;

the box body 11 slides upwards relative to the frame 40, the linkage arm 151 moves upwards along the guide inclined plane 141 to the guide plane 143, and the cutter releasing arm 153 moves downwards around the axis and can press the cutter shaft 20 at the side of the box body 11 away from the cutter releasing driving piece 14.

The loose knife driving member 14 may be a block structure protruding from the mounting surface of the frame 40, and the loose knife driving member 14 has a guiding inclined surface 141 and a guiding plane 143, and the guiding inclined surface 141 is located below the guiding plane 143 and is connected with the guiding plane 143 in a smooth transition manner.

Referring to fig. 7, in the process of the tool releasing action of the tool releasing assembly 15, the free end of the linkage arm 151 contacts with the guiding inclined plane 141 of the tool releasing driving member 14, the box body 11 moves upward relative to the frame 40, and then the frame 40 has a tendency of moving downward relative to the box body 11, because the direction of the acting force F applied to the linkage arm 151 by the guiding inclined plane 141 is perpendicular to the surface of the guiding inclined plane 141, the rotating shaft 18 of the tool releasing assembly 15 is arranged at a height lower than the contact point of the linkage arm 151 and the guiding inclined plane 141 in the height direction, and the direction of the acting force F is above the axis of the rotating shaft 18, and in the process of the upward movement of the box body 11 relative to the frame 40, the acting force F of the linkage arm 151 by the guiding inclined plane 141 enables the linkage arm 151 to rotate upward relative to the box body 11 until the linkage arm 151 moves to the guiding plane 143. In the process, the linkage arm 151 and the cutter loosening arm 153 are connected through the adjusting piece 17, the linkage arm 151 and the cutter loosening arm 153 form a rigid structure, and in the process that the linkage arm 151 rotates upwards relative to the box body 11, the cutter loosening arm 153 rotates downwards relative to the box body 11 and presses the cutter shaft 20.

In the above structure, the structure of the knife loosening driving part 14 is simple, the linkage arm 151 can be driven by the knife loosening driving part 14 to move in the movement process of the box body 11 relative to the frame 40, and the knife loosening driving part 14 does not need to actively provide power, so that the knife loosening device 10 is low in cost, compact in structure and good in movement transmission effect.

In the above embodiment, referring to fig. 1, the tool releasing device 10 may further include a tool magazine assembly 19, and the tool magazine assembly 19 includes a tool changing driving member and a tool magazine, and the tool changing driving member connects the machine frame 40 and the tool magazine.

During the upward movement of the box 11 relative to the frame 40, the tool changing driving member can drive the tool magazine to move toward the direction close to the arbor 20, specifically, the tool mounting position on the tool magazine moves toward the direction close to the tool on the arbor 20, and the tool falls into the tool mounting position, and simultaneously the tool releasing assembly 10 drives the arbor 20 to release the tool on the arbor 20. After the knife loosening assembly 10 finishes the knife loosening operation and moves reversely to loosen the knife shaft 20, the knife shaft 20 can be automatically reset. The tool magazine can carry the replaced tool away from the cutter shaft 20, and tool loosening operation of the tool is completed.

The tool magazine can be provided with a plurality of tool mounting positions, and different tools can be mounted at different tool mounting positions, so that the tool changing operation of different tools can be automatically completed by the tool loosening device 10, and the tool loosening device is convenient, fast and quick.

The unclamping device 10 may further include a reset connection block 161 and a reset member 163, the reset connection block 161 is fixedly connected to the rotating shaft 18 and extends toward a lateral side of the rotating shaft 18, and the reset member 163 connects the case 11 and a side of the reset connection block 161 away from the rotating shaft 18. The reset member 163 may be an elastic member that is in a tensile or compressive state, depending on the direction of rotation of the unclamp device 10 that needs to be reset.

Specifically, the reset connection block 161 may be located on a side of a connection rod 1511b facing away from the unclamping arm 153 and extend along an extending direction of the unclamping adjustment portion 1531. The reset connecting block 161 can drive the rotating shaft 18 through the reset member 163 to realize the reset action of the unclamping assembly 15, and can not influence the matching connection of the linkage arm 151 with the unclamping arm 153, so that the unclamping device 10 has a more compact structure and a high space utilization rate.

Referring to fig. 2 and 3, the box 11 may further have an installation space 111 and an installation hole 113 communicating with the installation space 111, the unclamping arm 153 is accommodated in the installation space 111, and the linkage arm 151 is at least partially accommodated in the installation space 111 and can contact the unclamping driving member 14 through the installation hole 113;

Under this structure, the pine sword subassembly 15 can at least part holding in installation space 111, and box 11 not only can carry on spacingly to the installation of pine sword subassembly 15, can also provide the protection for pine sword subassembly 15 for the motion process of pine sword subassembly 15 is more stable, reliable.

When this knife loosening device 10 is applied to brill and attacks center 100, the arbor 20 of brill and attacking center 100 can part holding in this installation space 111, and box 11 can be along circumferential connection arbor 20 to make box 11 drive arbor 20 motion in-process, the motion of arbor 20 is more stable, and box 11 can protect the part of arbor 20, makes the processing of arbor 20 effectual, and long service life. This box 11 still makes the cooperation position of loose sword subassembly 15 and arbor 20 accurate, and difficult relative movement that takes place guarantees that loose sword subassembly 15 can be effectual to arbor 20 press at the knife setting 20 pine sword in-process.

Referring to fig. 1, the present invention further provides a drilling and tapping center 100, wherein the drilling and tapping center 100 comprises a frame 40, a workbench 30 and a cutter loosening device 10. The specific structure of the cutter loosening device 10 refers to the above embodiments, and since the drilling and tapping center 100 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The worktable 30 is arranged on a frame 40, a box body 11 on the cutter loosening device 10 is connected with the frame 40 in a sliding way, a cutter shaft 20 is connected with the box body 11, and a cutter on the cutter shaft 20 can process a workpiece on the worktable 30.

The frame 40 may include a column 41 and a base 42, the column 41 being connected to the base 42 and located above the base 42, and the table 30 being disposed on the base 42. When the box 11 moves up and down relative to the column 41, the cutter on the cutter shaft 20 can process the workpiece on the workbench 30.

The movement position of the box body 11 in the process of driving the cutter shaft 20 to process can be lower than the movement position of the box body 11 in the process of driving the cutter loosening assembly 15 to loosen the cutter, so that the movement of the cutter loosening assembly 15 cannot interfere with the processing process of the cutter shaft 20, the cutter loosening action of the cutter loosening device 10 can be smoothly executed, and the workpiece can be effectively processed by the drilling and tapping center 100 of the cutter loosening device 10.

The frame 40 may further include a small upright 43, and the box 11 may be slidably connected to the small upright 43 and connected to the upright 41 through the small upright 43.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a knife loosening device, installs in the frame, its characterized in that knife loosening device includes:

one side of the box body is connected with the rack in a sliding manner; and

2. The knife loosening device of claim 1, wherein the knife loosening assembly further comprises a rotating shaft rotatably connected to the box, the knife loosening arm is fixed to the rotating shaft and has a knife loosening adjusting portion extending toward one side of the rotating shaft and a knife loosening portion extending toward the other side of the rotating shaft, an included angle between the linkage arm and the knife loosening adjusting portion is an acute angle, and the adjusting member adjustably connects the linkage arm and the knife loosening adjusting portion.

3. The knife loosening device of claim 2, wherein the linkage arm comprises a linkage portion and an adapter portion, the linkage portion is rotatably connected to the rotating shaft, one end of the adapter portion is rotatably connected to the linkage portion, and the other end of the adapter portion is a free end; the adaptor part can rotate relative to the linkage part until the free end faces the cutter loosening adjusting part, and the adjusting piece is adjustably connected with the free end of the adaptor part and the cutter loosening adjusting part.

4. The unclamping device according to claim 3, wherein the free end of the adapter portion is provided with an adjustment hole; the cutter loosening adjusting part is provided with a through hole;

5. The unclamping device of claim 4, wherein the free end of the adapter portion has a connecting surface facing the unclamping adjustment portion, and the adjustment hole opens into the connecting surface.

6. The knife loosening device as claimed in claim 4, wherein the through hole is a strip-shaped hole, and the extending direction of the through hole is consistent with the moving direction of the free end of the adapter.

7. The knife loosening device as claimed in claim 4, wherein the adjusting member comprises a second connecting portion, the knife loosening adjusting portion is provided with a connecting hole, the second connecting portion is arranged through the connecting hole and is adjustably connected with the knife loosening adjusting portion, and one end of the second connecting portion abuts against the adapting portion.

8. The unclamping device according to claim 3, wherein the linkage portion comprises a connecting shaft and two oppositely disposed connecting rods, one end of each of the two connecting rods is rotatably connected to the rotating shaft, and the other end of each of the two connecting rods extends away from the rotating shaft and is connected to the connecting shaft; one end of the switching part is rotatably connected to the connecting shaft in an area between the two connecting rods;

9. The unclamping device of claim 2, wherein the unclamping section has two unclamping sections and a unclamping section, the unclamping section is fixed to the rotating shaft, one end of each of the two unclamping sections is connected to the unclamping section, and the other end of each of the two unclamping sections extends away from the unclamping section.

10. The unclamping device according to any one of claims 1 to 9, wherein the case is provided with a mounting space and has a mounting hole communicated with the mounting space, the unclamping arm is accommodated in the mounting space, and the linkage arm is at least partially accommodated in the mounting space and can contact the unclamping driving member through the mounting hole;

11. The drilling and tapping center is characterized by comprising a frame, a workbench, a cutter shaft and the cutter loosening device as claimed in any one of claims 1 to 10, wherein the workbench is mounted on the frame, a box body on the cutter loosening device is slidably connected to the frame, the cutter shaft is connected with the box body, and a cutter on the cutter shaft can process a workpiece on the workbench.