CN213998720U

CN213998720U - key processing machine

Info

Publication number: CN213998720U
Application number: CN202022661410.4U
Authority: CN
Inventors: 陈俊峰
Original assignee: Zhejiang Yongyuan Technology Co ltd
Current assignee: Zhejiang Unionx Electric Machinery Technology Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-08-20
Anticipated expiration: 2030-11-17

Abstract

The utility model provides a key processing machine, belonging to the key processing field, comprising a base, a feeding device, a tool changing device and a buffer device; the tool changing device is connected to the base in a sliding manner; the feeding device is connected with the tool changing device and used for driving the tool changing device to slide up and down; the top end of the buffer device is hinged to the base, the bottom end of the buffer device is hinged to the tool changing device, and the buffer device is used for providing upward supporting force for the tool changing device. Through set up buffer between toolchanger and base, buffer's bottom and top articulate respectively in base and buffer, and when feed arrangement drive toolchanger slided from top to bottom, buffer can provide stable ascending holding power for it, has alleviateed feed arrangement's burden for buffer slides more steadily from top to bottom, has improved the precision of key processing machine.

Description

Key processing machine

Technical Field

The utility model belongs to the key processing field, more specifically say, relate to a key processing machine.

Background

As is well known, the key is an essential article for daily life, and the damage and loss of the key are common events, so the duplication of the key is an essential task. The key processing machine commonly used at present mainly comprises a mechanical key processing machine and an electronic key processing machine. The mechanical key processing machine mainly comprises a detector, wherein the detector is used for detecting the profile of an original key, and then a milling cutter is used for further processing a blank key; the electronic key processing machine mainly adopts an optical reader to replace a detector; when two kinds of key processing machines copy keys corresponding to different types or different tooth codes, the key processing tool can only be provided with one tool bit and is usually replaced by adopting a manual mode, the operation is more complicated, and the manual dependence is strong.

An automatic tool changing device is installed on the key processing machine to realize automatic tool changing. In the key cutting process, a cutter head of a cutting tool often needs a feeding mechanism to drive the cutter head to make feeding motion in the vertical direction, however, because the weight of the cutter changing device is large, the force in the vertical direction, which needs to be borne by the feeding mechanism, is too large, the feeding motion is easy to be unstable, and the machining precision is affected.

Disclosure of Invention

An object of the utility model is to provide a key processing machine aims at solving among the prior art toolchanger and is unstable technical problem when feed motion is done to vertical direction.

In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a key processing machine comprising:

the device comprises a base, a feeding device, a tool changing device and a buffer device; the tool changing device is connected to the base in a sliding mode; the feeding device is connected to the tool changing device and used for driving the tool changing device to slide up and down; the top end of the buffer device is hinged to the base, the bottom end of the buffer device is hinged to the tool changing device, and the buffer device is used for providing upward supporting force for the tool changing device.

Further, the key processing machine further comprises a clamping device, the clamping device comprises a first driving portion and two clamping portions distributed in a mirror image mode, the key clamp is arranged between the two clamping portions, and the first driving portion is connected to the two clamping portions so as to drive the clamping portions to drive the key to rotate around the central axis of the key.

Further, the feeding device comprises a first feeding unit, a second feeding unit and a third feeding unit; the first feeding unit and the second feeding unit are connected to the clamping device and used for driving the clamping device to move in a first direction and a second direction, the third feeding unit is connected to the tool changing device and used for driving the tool changing device to move in a third direction, and the third direction is a vertical direction; the first direction, the second direction and the third direction are perpendicular to each other.

Further, the tool changing device comprises a turntable, a rack, a first driving assembly, a second driving assembly, a third driving assembly and a return mechanism; the rotary table is rotationally connected with the rack, a plurality of cutter head assemblies which are annularly distributed around the rotation center of the rotary table are arranged on the rotary table, the cutter head assemblies are respectively used for cutting keys with different tooth shapes, and when the rotary table rotates, the different cutter head assemblies are switched to cut the keys; the cutter head assembly is detachably connected with the first driving assembly, and the first driving assembly drives the cutter head assembly to cut the key; the second driving assembly is connected with the first driving assembly and is used for driving the first driving assembly to disconnect the first driving assembly and the cutter head assembly; the return mechanism is connected with the first driving assembly and is used for connecting the first driving assembly and the cutter head assembly; the third driving assembly is arranged on the rack and used for driving the rotary disc to rotate.

Further, the tool bit subassembly includes coaxial milling cutter, main shaft and the first connecting piece that sets up, milling cutter is fixed in the one end of main shaft, first connecting piece is fixed in the other end of main shaft, milling cutter is used for cutting the key.

Further, the first drive assembly comprises a second connector and a drive member; the second connecting piece is detachably connected with the first connecting piece, and the second connecting piece is coaxial with the first connecting piece; the driving piece drives the second connecting piece to rotate around the axis of the second connecting piece.

Further, the second driving assembly comprises a second driving part, a cam rod and a transmission block; the transmission block is fixedly connected to the first driving assembly; the cam rod is rotationally connected with the rack; the transmission block point is contacted with the cam rod; the second driving part drives the cam rod to rotate, and when the cam rod rotates, the driving block is pushed to linearly move along the axial direction of the second connecting piece so as to disconnect the first driving assembly and the cutter head assembly.

Furthermore, the return mechanism comprises a sliding seat and an elastic piece, the sliding seat is connected to the rack in a sliding manner and is fixedly connected to the first driving assembly, and the sliding seat is provided with a cavity; the axial direction of the elastic piece is parallel to the axial direction of the second connecting piece, one end of the elastic piece is fixed on the inner wall of the cavity, and the other end of the elastic piece extends out of the cavity and is fixedly connected with the rack.

Further, buffer includes the nitrogen gas spring, the top of nitrogen gas spring articulates in the base, the bottom of nitrogen gas spring articulates in tool changer.

The utility model provides a pair of key processing machine's beneficial effect lies in: through set up buffer between toolchanger and base, buffer's bottom and top articulate respectively in base and buffer, and when feed arrangement drive toolchanger slided from top to bottom, buffer can provide stable ascending holding power for it, has alleviateed feed arrangement's burden for buffer slides more steadily from top to bottom, has improved the precision of key processing machine.

Drawings

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

Fig. 1 is a schematic axial side structure diagram of a key processing machine according to an embodiment of the present invention;

fig. 2 is a schematic axial side view of a key processing machine according to another embodiment of the present invention;

FIG. 3 is an exploded view of a bit assembly of a key processing machine according to an embodiment of the present invention;

fig. 4 is a schematic view of an internal structure of a tool changer according to an embodiment of the present invention;

fig. 5 is a schematic side view of another view angle of the key processing machine according to the embodiment of the present invention;

fig. 6 is an exploded schematic view of a clamping device according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of the first feeding unit and the third feeding unit provided in the embodiment of the present invention.

In the figure: 1. a base; 2. A tool changing device; 21. a turntable; 22. a cutter head assembly; 23. a frame; 3. a clamping device; 221. milling cutters; 222. a main shaft; 223. a first connecting member; 224. angular contact ball bearings; 225. a deep groove ball bearing; 226. a bearing end cap; 24. a first drive assembly; 25. a second drive assembly; 26. a third drive assembly; 251. a third step motor; 252. a cam lever; 253. a cycloidal-tooth nut block; 254. a transmission block; 261. a first stepper motor; 271. a slide base; 272. an elastic member; 263. a worm gear; 262. a worm; 4. a nitrogen spring; 31. a beam frame; 32. a vertical plate; 33. a fourth stepping motor; 34. a toothed belt wheel set; 35. a clamping portion; 5. a key; 341. a first toothed belt wheel; 342. a synchronous belt; 343. a second toothed belt wheel; 41. a first feeding unit; 411. a first motor; 412. a first screw; 413. a first nut; 431. a third motor.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 6, the present invention provides a key processing machine, which includes a base 1, a tool changer 2, a feeding device and a buffering device, wherein the tool changer 2 is slidably connected to the base 1; the feeding device is connected to the tool changing device 2 and used for driving the tool changing device 2 to slide in the vertical direction; buffer's upper end articulates on tool changer 2's frame 23, and the lower extreme articulates on base 1, and preferably, buffer is nitrogen spring 4, because tool changer 2's volume is great, weight is big, gliding in-process about tool changer 2, nitrogen spring 4 can provide stable holding power for tool changer 2 for more steady when tool changer 2 slides from top to bottom, improve the stability of whole key processing machine.

Specifically, the feeding device includes a first feeding unit 41, a second feeding unit, and a third feeding unit, as shown in fig. 7, the first feeding unit includes a first motor 411, a first screw 412, and a first nut 413, an axial direction of the first screw 412 is parallel to the first direction, the clamping device 3 is fixedly connected to the first nut 413, the first nut 413 is in threaded connection with the first screw 412, and when the first motor 411 drives the first screw 412 to rotate, the first nut 413 is screwed in or out along the first screw 412, so as to drive the clamping device 3 to move along the first direction.

Similarly, the second feeding unit comprises a second motor, a second screw rod and a second nut, the axial direction of the second screw rod is parallel to the second direction, the clamping device is fixedly connected with the second nut, the second nut is in threaded connection with the second screw rod, and when the second motor drives the second screw rod to rotate, the second nut is screwed in or out along the second screw rod, so that the clamping device is driven to move along the second direction.

The third feeding unit comprises a third motor 431, a third screw and a third nut, the axial direction of the third screw is parallel to the third direction, the tool changer 2 is fixedly connected with the third nut, the third nut is in threaded connection with the third screw, and when the third motor 431 drives the third screw to rotate, the third nut is screwed in or out along the third screw, so that the tool changer 2 is driven to move along the third direction.

Specifically, the third direction is a vertical direction, the second direction is a left-right direction, and the first direction is a front-rear direction.

Specifically, the cutter head assembly 22 includes a milling cutter 221, a milling cutter 222 and a first connecting piece 223, the milling cutter 221, the milling cutter 222 and the first connecting piece 223 are coaxially arranged, an angular contact ball bearing 224 is sleeved on a front end of the milling cutter 222, a deep groove ball bearing 225 is sleeved on a rear end of the milling cutter 222 to improve the rotation stability of the milling cutter, in addition, a bearing end cover 226 is arranged on the outermost side of the milling cutter 222, and the bearing end cover 226 is fixed on the rotary table 21; the milling cutter 221 is fixed to the front end of the milling cutter 222, the milling cutter 221 directly contacts the key 5 to cut the key 5, and the plurality of bit assemblies 22 have different types of milling cutters 221, and the different types of milling cutters 221 can cut keys 5 of different tooth shapes. The rear end of the milling cutter 221 is fixed with a first coupling member 223.

In one embodiment, the tool changer 2 includes a frame tool changer 2 including a turntable 21, a frame 23, a first drive assembly 24, a second drive assembly 25, a third drive assembly 26, and a return mechanism. The rotary disc 21 is provided with a plurality of cutter head components 22 and cutter head components 22 which are annularly distributed around the rotation center of the rotary disc 21, the cutter head components 22 have different cutting shapes so as to cut and form keys 5 with different tooth shapes, and when the rotary disc 21 of the cutter head components 22 rotates, the cutter head components 22 are switched to different cutter head components 22 and keys 5 so as to cut the keys 5; the turntable 21 is rotatably connected to the frame 23, and the third driving assembly 26 is disposed on the frame 23 for driving the turntable 21 to rotate. Specifically, the third driving assembly 26 includes a first stepping motor 261 and a worm 262, the rotary plate 21 is fixedly connected to an annular worm wheel 263, and when the first stepping motor 261 drives the worm 262 to rotate, the worm 262 drives the worm wheel 263 to rotate due to the engagement of the worm 262 and the worm wheel 263, so that the rotary plate 21 rotates. The turntable 21 is provided with a plurality of through holes which are distributed annularly around the rotation center of the turntable 21, the plurality of cutter head components 22 penetrate through the corresponding through holes one by one and are fixed on the turntable 21, when the turntable 21 rotates, the cutter head components 22 rotate along with the rotation, a target cutter head component 22 to be switched is rotated to a certain position corresponding to the clamping device 3, and the cutter head component 22 cuts the key 5 at the certain position. The bit assembly 22 is removably coupled to a first drive assembly 24, and the first drive assembly 24 drives the bit assembly 22 to cut the key 5. Since the cutter head assembly 22 needs to be rotationally switched, before rotation, the connection between the cutter head assembly 22 and the first driving assembly 24 needs to be disconnected, the second driving assembly 25 is connected to the first driving assembly 24, and the connection between the first driving assembly 24 and the cutter head assembly 22 is disconnected by changing the position of the first driving assembly 24; when the target bit assembly 22 is rotated to the above position, it is necessary to reconnect the first drive assembly 24 and the target bit assembly 22, and a return mechanism is connected to the first drive assembly 24 for reconnecting the first drive assembly 24 and the target bit assembly 22 and the second drive assembly 25.

By providing the tool changer 2 with the turntable 21, a plurality of tool bit assemblies 22 capable of cutting keys 5 with different tooth shapes are arranged on the turntable 21 around the rotation center of the turntable, and the tool bit assemblies 22 can be switched with each other, so that the key processing machine can cut keys 5 with various tooth shapes.

Specifically, the first drive assembly 24 includes a second connector and a drive member. The second connecting piece can be dismantled with first connecting piece 223 and be connected, and the second connecting piece is coaxial with first connecting piece 223, and in a preferred embodiment, first connecting piece 223 is external splines, and the second connecting piece is internal splines, and first connecting piece 223 and the key-type connection of second connecting piece are in order to realize circumference fixed, and the driving piece is second step motor, and when driving piece drive second connecting piece was rotatory around self axis, the second connecting piece drove first connecting piece 223 and rotates. Before the rotary plate 21 rotates, the second connecting member is pulled out of the first connecting member 223, i.e., the connection between the cutter head assembly 22 and the first driving assembly 24 is broken, and after the rotary plate 21 rotates, the second connecting member is inserted into the first connecting member 223 to reconnect the cutter head assembly 22 and the first driving assembly 24.

Specifically, the extraction of the second link from the first link 223 is performed by the second drive assembly 25. The second driving assembly 25 includes a second driving portion, a cam rod 252 and a transmission block 254, as shown in fig. 4, the second driving portion is a third stepping motor 251, which is located at the upper left of the frame 23 and horizontally disposed, a cycloid tooth nut block 253 is screwed on the output shaft of the third stepping motor 251, when the output shaft rotates, the cycloid tooth nut block 253 linearly moves along the axial direction of the output shaft, one end of the cam rod 252 is hinged on the cycloid tooth nut block 253, the other end is hinged on the frame 23, one side of the cam rod 252 facing the transmission block 254 is an arc surface, the transmission block 254 is in point contact with the arc surface, when the cycloid tooth nut block 253 linearly moves along the axial direction of the output shaft, the cam rod 252 rotates on the horizontal surface to press the transmission block 254 in point contact therewith, so that the transmission block 254 linearly moves along the axial direction of the second connection member and in the direction away from the first connection member 223, the first driving assembly 24 is fixed on the transmission block 254, the first drive assembly 24 thus moves in synchronism with the driver block 254, disconnecting the second link from the first link 223.

In one embodiment, inserting the second connector into the first connector 223 to reconnect the bit assembly 22 with the first drive assembly 24 is performed by a return mechanism. The return mechanism is located at the rear of the tool changer 2 and comprises a slide 271 and an elastic member 272, wherein the slide 271 is slidably connected to the frame 23 through a cross roller guide pair and is fixedly connected to the first driving assembly 24. The sliding base 271 is provided with a cavity, the elastic member 272 is preferably a spring, the axial direction of the elastic member 272 is parallel to the axial direction of the second connecting member, one end of the spring is fixed on the inner wall of the cavity, the inner wall of the cavity is provided with a hole, and the other end of the spring passes through the hole to extend out of the cavity and is fixed on the frame 23. In the direction linear motion process that second drive assembly 25 drive first subassembly just kept away from first connecting piece 223 along the axial of second connecting piece, the spring is in by compressed state, because cam lever 252 can only push driving block 254 towards the right side, when the output shaft reversal of third step motor 251, can not push driving block 254 to move left, through setting up the spring, rely on the resilience force of spring, drive second connecting piece and move left and insert in first connecting piece 223, can drive first connecting piece 223 rotatory when making the second connecting piece rotatory.

In an embodiment, as shown in fig. 6, which is an exploded structural diagram of the clamping device 3, the clamping device 3 is based on a beam 31, the beam 31 is hollow inside, and two ends of the beam are covered with vertical plates 32. The bottom end inside the beam frame 31 is provided with a first driving part, the first driving part is preferably a fourth stepping motor 33, two ends of the fourth stepping motor 33 are respectively connected with two toothed belt wheel sets 34, the toothed belt wheel sets 34 comprise a synchronous belt 342, a first toothed belt wheel 341 at the bottom end of the beam frame 31 and a second toothed belt wheel 343 at the top end of the beam frame 31, when the fourth stepping motor 33 works, the first toothed belt wheel 341 in the two toothed belt wheel sets 34 is driven to rotate simultaneously, then the second gear wheels 343 of the two gear wheel sets 34 are driven to rotate around the same direction by the synchronous belt 342, the rotating shafts of the two second gear wheels 343 are fixedly connected to the two clamping portions 35, the two clamping portions 35 are distributed in a mirror image manner, the key 5 is clamped between the two clamping portions 35, when the fourth stepping motor 33 drives the gear wheel sets 34, the two clamping parts 35 are driven to rotate towards the same direction, and the key 5 synchronously rotates along with the clamping parts 35.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A key processing machine is characterized by comprising a base, a feeding device, a tool changing device and a buffer device; the tool changing device is connected to the base in a sliding mode; the feeding device is connected to the tool changing device and used for driving the tool changing device to slide up and down; the top end of the buffer device is hinged to the base, the bottom end of the buffer device is hinged to the tool changing device, and the buffer device is used for providing upward supporting force for the tool changing device.

2. The key processing machine according to claim 1, further comprising a clamping device, wherein the clamping device comprises a first driving portion and two clamping portions distributed in a mirror image manner, the key is clamped between the two clamping portions, and the first driving portion is connected to the two clamping portions to drive the key to rotate around a central axis of the key.

3. The key processing machine according to claim 2, wherein said feeding means comprises a first feeding unit, a second feeding unit and a third feeding unit; the first feeding unit and the second feeding unit are connected to the clamping device and used for driving the clamping device to move in a first direction and a second direction, the third feeding unit is connected to the tool changing device and used for driving the tool changing device to move in a third direction, and the third direction is a vertical direction; the first direction, the second direction and the third direction are perpendicular to each other.

4. The key processing machine of claim 1 wherein said tool changer comprises a turntable, a frame, a first drive assembly, a second drive assembly, a third drive assembly, and a return mechanism; the rotary table is rotationally connected with the rack, a plurality of cutter head assemblies which are annularly distributed around the rotation center of the rotary table are arranged on the rotary table, the cutter head assemblies are respectively used for cutting keys with different tooth shapes, and when the rotary table rotates, the different cutter head assemblies are switched to cut the keys; the cutter head assembly is detachably connected with the first driving assembly, and the first driving assembly drives the cutter head assembly to cut the key; the second driving assembly is connected with the first driving assembly and is used for driving the first driving assembly to disconnect the first driving assembly and the cutter head assembly; the return mechanism is connected with the first driving assembly and is used for connecting the first driving assembly and the cutter head assembly; the third driving assembly is arranged on the rack and used for driving the rotary disc to rotate.

5. The key processing machine according to claim 4, wherein said bit assembly includes a milling cutter, a spindle, and a first connector coaxially disposed, said milling cutter being secured to one end of said spindle, said first connector being secured to the other end of said spindle, said milling cutter being for cutting said key.

6. The key processing machine of claim 5 wherein said first drive assembly includes a second link and a drive member; the second connecting piece is detachably connected with the first connecting piece, and the second connecting piece is coaxial with the first connecting piece; the driving piece drives the second connecting piece to rotate around the axis of the second connecting piece.

7. The key processing machine of claim 6 wherein said second drive assembly includes a second drive portion, a cam lever and a drive block; the transmission block is fixedly connected to the first driving assembly; the cam rod is rotationally connected with the rack; the transmission block point is contacted with the cam rod; the second driving part drives the cam rod to rotate, and when the cam rod rotates, the driving block is pushed to linearly move along the axial direction of the second connecting piece so as to disconnect the first driving assembly and the cutter head assembly.

8. The key processing machine of claim 6 wherein said return mechanism comprises a slide and a spring, said slide slidably connected to said frame and fixedly connected to said first drive assembly, said slide defining a cavity; the axial direction of the elastic piece is parallel to the axial direction of the second connecting piece, one end of the elastic piece is fixed on the inner wall of the cavity, and the other end of the elastic piece extends out of the cavity and is fixedly connected with the rack.

9. A key processing machine as claimed in any one of claims 1 to 8, wherein said damping means comprises a nitrogen spring, the top end of said nitrogen spring being hinged to said base and the bottom end of said nitrogen spring being hinged to said tool changer.