CN214979527U

CN214979527U - Novel milling machine

Info

Publication number: CN214979527U
Application number: CN202121710149.0U
Authority: CN
Inventors: 冯剑; 严永辉
Original assignee: Chengdu Shengchen Automation Equipment Co ltd
Current assignee: Chengdu Shengchen Automation Equipment Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-12-03
Anticipated expiration: 2031-07-27

Abstract

The utility model relates to a novel milling machine, including the fixed plate, lead screw subassembly and a plurality of cutter head subassembly, the lead screw unit mount is in on the fixed plate, a plurality of cutter head subassemblies are installed side by side on the output of lead screw subassembly, and lead screw subassembly drive cutter head subassembly is along the vertical of fixed plate to being reciprocating type linear motion, and the cutter head subassembly includes the main shaft, the mount pad, presser foot and cylinder, and mount pad fixed mounting is on the output of lead screw subassembly, and the mount pad middle part is provided with the through-hole, and the main shaft runs through-hole, presser foot movable mounting are on the output of main shaft, and two cylinders are listed as the setting and can dismantle in the both sides of main shaft and with the mount pad and be connected, and the output and the presser foot of cylinder are connected, the cylinder drive reciprocating type linear motion is done to the presser foot. The utility model discloses a lead screw subassembly is connected with a plurality of cutter head subassemblies, and displacement about a plurality of cutter head subassemblies are in step under the drive of lead screw subassembly, need not to use many motors to correspond and connect a plurality of cutter head subassemblies, reduction in production cost, more energy-conservation.

Description

Novel milling machine

Technical Field

The utility model relates to a milling machine technical field especially relates to a novel milling machine.

Background

The milling machine is a machine tool with wide application, and can process planes (horizontal planes and vertical planes), grooves (key grooves, T-shaped grooves, dovetail grooves and the like), tooth dividing parts (gears, spline shafts and chain wheels), spiral surfaces (threads and spiral grooves) and various curved surfaces on the milling machine. In addition, the method can be used for machining the surface and inner hole of the revolving body, cutting off the revolving body, and the like. When the milling machine works, a workpiece is arranged on a workbench or accessories such as an indexing head, the milling cutter rotates to move mainly, and the workpiece can obtain a required processing surface by the aid of the feeding motion of the workbench or the milling head.

The existing milling machine structure generally adopts a guide rail to install a single motor, then the single motor is used for driving a single milling head to move up and down to process a workpiece, and in the process of cooperative processing, a plurality of motors are needed to correspondingly drive a plurality of milling heads, so that the production cost is high, and the power consumption is high. Secondly, the milling head of the existing milling machine is dry milling when milling the PCB, cannot be cooled by water or other liquid, and can only cool the cutter by adopting the rapid air flow, and the processing part of the existing milling head is not provided with an integrated air cooling component, but is provided with an air blowing device on the milling machine, so that the cooling efficiency is low.

SUMMERY OF THE UTILITY MODEL

Therefore, a new milling machine needs to be provided for the conditions of high cost, large power consumption and low air cooling efficiency of the existing single-motor corresponding driving single milling head.

The utility model provides a novel milling machine, includes the fixed plate, lead screw subassembly and a plurality of cutter head subassembly, the lead screw unit mount is in on the fixed plate, it is a plurality of the cutter head subassembly is installed side by side on the output of lead screw subassembly, the lead screw subassembly drive the cutter head subassembly is followed the vertical reciprocating linear motion to being of fixed plate, the cutter head subassembly includes the main shaft, the mount pad, presser foot and cylinder, mount pad fixed mounting be in on the output of lead screw subassembly, the mount pad middle part is provided with the through-hole, the main shaft runs through the through-hole, presser foot movable mounting be in on the output of main shaft, two the cylinder is listed as the setting and is in the both sides of main shaft and with the connection can be dismantled to the mount pad, the output of cylinder with the presser foot is connected, the cylinder drive reciprocating linear motion is to the presser foot.

Preferably, the presser foot includes brush head, seal cover and closing plate, the output of main shaft runs through in proper order closing plate, seal cover, head reach the brush head, the brush head with the head deviates from the one end of seal cover is connected, the seal cover with be provided with sealed space between the closing plate, sealed space and head reach the brush head is communicated, the output of cylinder with the closing plate is connected, be provided with on the closing plate with the dust outlet hole of sealed space intercommunication.

Preferably, one side of the seal head, which is far away from the brush head, is provided with a boss, and the boss is provided with a clamping groove for mounting an infrared detector.

Preferably, the screw rod assembly comprises a motor, a screw rod, a sliding plate and a sliding rail, the motor and the sliding rail are both mounted on the fixed plate, the output end of the motor is connected with one end of the screw rod, the two ends of the sliding plate are movably connected with the sliding rail, the other end of the screw rod is connected with the sliding plate, and the mounting seat is fixedly mounted on the sliding plate.

Preferably, an auxiliary cylinder is arranged on the fixing plate and connected with the sliding plate.

Preferably, still be provided with tool changer on the fixed plate, tool changer includes the grudging post, drives actuating cylinder and the tight pipe of cover, grudging post one end with the face of fixed plate is connected perpendicularly, the grudging post other end with it connects perpendicularly to drive actuating cylinder, drive actuating cylinder's output with the tight union coupling of cover, drive actuating cylinder's direction of motion with the direction of motion of lead screw subassembly is unanimous.

Preferably, the fixed plate is further provided with a proximity sensor, and the upper end of the sliding plate is correspondingly provided with a detection plate.

The utility model discloses an useful part lies in: 1. the milling head assemblies are connected with the lead screw assemblies, and the milling head assemblies synchronously move up and down under the driving of the lead screw assemblies, so that a plurality of milling head assemblies are not required to be correspondingly connected by a plurality of motors, the production cost is reduced, and more energy is saved; 2. the output end of the milling head assembly is additionally provided with the presser foot, the presser foot is communicated with an external central dust collector to input negative pressure, so that a negative pressure vortex is formed at the processing position of the milling head assembly and a workpiece, high-speed airflow can be used for air cooling the processing position of the workpiece, dust generated by processing can be taken away, the cooling efficiency is high, and manual residue cleaning is not needed.

Drawings

FIG. 1 is a schematic perspective view of a novel milling machine according to one embodiment;

FIG. 2 is an exploded view of a novel milling machine;

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

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present 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 intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-2, a novel milling machine comprises a fixing plate 1, a screw rod assembly 2 and a plurality of milling head assemblies 3, wherein the screw rod assembly 2 is installed on the fixing plate 1, the plurality of milling head assemblies 3 are installed side by side on the output end of the screw rod assembly 2, the screw rod assembly 2 drives the milling head assemblies 3 to make reciprocating linear motion along the vertical direction of the fixing plate 1, the milling head assemblies 3 comprise a main shaft 31, an installation seat 32, a pressure foot 33 and a cylinder 34, the installation seat 32 is fixedly installed on the output end of the screw rod assembly 2, a through hole 321 is arranged in the middle of the installation seat 32, the main shaft 31 penetrates through the through hole 321, the pressure foot 33 is movably installed on the output end of the main shaft 31, two cylinders 34 are arranged on two sides of the main shaft 31 and detachably connected with the installation seat 32, the output end of the cylinder 34 is connected with the pressure foot 33, the cylinder 34 drives the presser foot 33 to perform a reciprocating linear motion. Specifically, in this embodiment, when in use, the fixing plate 1 is mounted on a slide (not shown in the figure) capable of moving horizontally, so as to move the milling head assembly 3 horizontally, and process different parts of a workpiece or perform tool changing operation. The fixed plate 1 is provided with a screw rod assembly 2, and the screw rod assembly 2 is a prior art for converting rotary motion into linear motion and is not described herein again. In this embodiment, two cutter head subassemblies 3 are installed side by side on lead screw subassembly 2, and in other embodiments, the quantity of cutter head subassembly 3 still can be other figures, uses one set of lead screw subassembly 2 can drive a plurality of cutter head subassemblies 3 synchronous displacement from top to bottom, processes the work piece, need not to set up many servo motor and the 3 one-to-one of cutter head subassembly, saves the cost to reduce the consumption. Further, the milling head assembly 3 includes a spindle 31, a mounting seat 32, a presser foot 33 and a cylinder 34, and it can be understood that the milling cutter is mounted on the output end of the spindle 31, and the spindle 31 drives the milling cutter to rotate to drill the circuit board. Because the circuit board can not be cooled by water in the processing process and can only adopt air cooling, in order to improve the heat dissipation efficiency of the air cooling, the output end of the main shaft 31 is additionally provided with a presser foot 33, when the screw rod component 2 drives the milling head component 3 to press downwards for drilling, the air cylinder 34 synchronously works to drive the presser foot 33 to press down along the main shaft 31, the presser foot 33 presses on the surface of the workpiece plate, when the milling cutter is processed, an external central vacuum cleaner (not shown) communicates with the presser foot 33, forming a small air gap space between the presser foot 33 and the workpiece, the central dust collector generates negative pressure to form high-speed airflow, so that the forced air cooling can be carried out on the workpiece and the milling cutter, the dust generated by processing can be sucked away, the cooling efficiency is greatly improved compared with the air cooling mode of the original external fan, and the operation personnel are not required to clean the scraps after the processing is finished, so that the labor capacity of the operation personnel is greatly reduced.

As shown in fig. 1 to 3, the presser foot 33 includes a brush head 331, a seal head 332, a seal sleeve 333 and a seal plate 334, an output end of the main shaft 31 sequentially penetrates through the seal plate 334, the seal sleeve 333, the seal head 332 and the brush head 331, the brush head 331 is connected with one end of the seal head 332, which is far away from the seal sleeve 333, a seal space is arranged between the seal sleeve 333 and the seal plate 334, the seal space is communicated with the seal head 332 and the brush head 331, an output end of the air cylinder 34 is connected with the seal plate 334, and a dust outlet 3341 communicated with the seal space is arranged on the seal plate 334. Specifically, in this embodiment, a dust outlet 3341 provided in the sealing plate 334 is used, one end of a hose (not shown) is connected to the dust outlet 3341, the other end of the hose is connected to the central vacuum cleaner, and dust generated during the processing passes through the brush head 331 and the sealing head 332 and then enters a sealed space formed by the sealing sleeve 333 and the sealing plate 334. When the spindle 31 penetrates through the presser foot 33, there is no gap between the spindle 31 and the sealing plate 334, so that the negative pressure generated by the central vacuum cleaner acts between the brush head 331 and the plate surface of the workpiece, and gaps exist between the spindle 31 and the sealing sleeve 333, the seal head 332 and the brush head 331, so that high-speed airflow can only enter the presser foot 33 along the gaps to cool the milling cutter and remove dust and debris. It should be noted that, a plurality of bristles are arranged on one side of the brush head 331 away from the seal head 332, and the bristles can not only play a role in compressing a workpiece plate, but also form high-speed flocculation flow during dust collection, so that the milling cutter cooling effect is better.

As shown in fig. 2 to 3, a boss 3321 is arranged on one side of the sealing head 332, which is far away from the brush head 331, and a clamping groove 3322 for installing an infrared detector is arranged on the boss 3321. Specifically, in this embodiment, set up boss 3321 in head 332, utilize the height of boss 3321's self, the middle part is hollowed back and is formed a draw-in groove 3322 for install infrared detector, infrared detector is just to milling cutter, can report to the police when milling cutter breaks off, reminds operating personnel to in time shut down the tool changing.

As shown in fig. 1-2, the screw rod assembly 2 includes a motor 21, a screw rod 22, a sliding plate 23 and a sliding rail 24, the motor 21 and the sliding rail 24 are both mounted on the fixing plate 1, an output end of the motor 21 is connected with one end of the screw rod 22, two ends of the sliding plate 23 are movably connected with the sliding rail 24, the other end of the screw rod 22 is connected with the sliding plate 23, and the mounting seat 32 is fixedly mounted on the sliding plate 23. Concrete, the structure of lead screw subassembly 2 is prior art, no longer gives unnecessary details here, the utility model discloses in introducing the milling machine with the lead screw subassembly, replace the design that a plurality of motors are connected one to one with cutter head subassembly 3, it is with low costs, and more energy-conserving.

As shown in fig. 1 to 2, an auxiliary cylinder 11 is disposed on the fixing plate 1, and the auxiliary cylinder 11 is connected to the sliding plate 23. Specifically, in this embodiment, set up supplementary cylinder 11 on fixed plate 1, cooperate motor 21 drive slide 23 displacement from top to bottom for the displacement of slide 23 is more steady, prevents that slide 23 from trembling, leads to the milling cutter tremble on main shaft 31, leads to the machining precision to reduce.

As shown in fig. 1 to 3, a tool changer 12 is further disposed on the fixing plate 1, the tool changer 12 includes a vertical frame 121, a driving cylinder 122 and a tightening pipe 123, one end of the vertical frame 121 is vertically connected to the plate surface of the fixing plate 1, the other end of the vertical frame 121 is vertically connected to the driving cylinder 122, an output end of the driving cylinder 122 is connected to the tightening pipe 123, and a moving direction of the driving cylinder 122 is consistent with a moving direction of the screw rod assembly 2. Specifically, in the present embodiment, it should be noted that when the milling cutter on the spindle 31 becomes dull or even damaged, the milling cutter needs to be replaced in time. The tool changer 12 comprises a vertical frame 121, a driving cylinder 122 and a tightening pipe 123, when tool changing is needed, the fixing plate 1 moves to a position right above a tool magazine (not shown in the figure) along a slide way, namely the tightening pipe 123 is pressed down by the driving cylinder 122, it needs to be noted that the end part of the tightening pipe 123 is in a split shape, the end part is loose after being pressed down, and the end part can be eaten into the milling tool, when the driving cylinder 122 retracts, the tightening pipe 123 is recovered, and the milling tool can be grabbed out from the tool magazine. In other embodiments, the way that the tightening sleeve 123 grabs the milling cutter may also adopt claw grabbing, and electromagnet grabbing is arranged in the tightening sleeve 123, which is not an example here. After the milling cutter is grabbed by the tightening pipe 123, the fixing plate 1 is moved to a public cutter changing area, the driving cylinder 122 drives the tightening pipe 123 to descend to release the milling cutter, and then the milling head assembly 3 is moved to the position above the milling cutter to perform cutter changing operation in the descending process. The tool changing device 12 is integrated on the fixing plate 1, so that automatic tool changing can be realized, manual tool changing by operators is not needed, and the automation degree is high.

As shown in fig. 1-2, the fixing plate 1 is further provided with a proximity sensor 13, and the upper end of the sliding plate 23 is correspondingly provided with a detection plate 14. Specifically, set up proximity sensor 13 on fixed plate 1 is close to the face of upper end, and when motor 21 drove slide 23 and moved up, detection plate 14 was close to proximity sensor 13, and proximity sensor 13 can the signal, gives the backstage controller, by backstage controller control motor 21 stop work, prevents that slide 23 from continuing to move up, leads to slide 23 to slide out the slide rail upper end. It can be understood that, in order to prevent the sliding plate 23 from sliding down and sliding out of the lower end of the sliding rail 24, a proximity sensor may be further disposed at the lower end of the sliding plate 23, and the sliding plate 23 may be prevented from sliding down excessively by cooperating with a detection plate disposed at the lower end of the fixing plate 1.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A novel milling machine is characterized in that: the milling head assembly comprises a main shaft, a mounting seat, a pressure foot and cylinders, wherein the mounting seat is fixedly mounted on the output end of the lead screw assembly, a through hole is formed in the middle of the mounting seat, the main shaft penetrates through the through hole, the pressure foot is movably mounted on the output end of the main shaft, the two cylinders are arranged on two sides of the main shaft in a row and detachably connected with the mounting seat, the output end of the cylinder is connected with the pressure foot, and the cylinders drive the pressure foot to do reciprocating linear motion.

2. A novel milling machine as claimed in claim 1 wherein: the presser foot includes brush head, seal cover and closing plate, the output of main shaft runs through in proper order closing plate, seal cover, head reach the brush head, the brush head with the head deviates from the one end of seal cover is connected, the seal cover with be provided with sealed space between the closing plate, sealed space and head reach the brush head is communicated, the output of cylinder with the closing plate is connected, be provided with on the closing plate with the dust outlet hole of sealed space intercommunication.

3. A novel milling machine as claimed in claim 2 wherein: the head deviates from one side of the brush head is provided with a boss, and a clamping groove for mounting an infrared detector is arranged on the boss.

4. A novel milling machine as claimed in claim 1 or 3, wherein: the lead screw subassembly includes the motor, the lead screw, slide and slide rail, the motor with the slide rail is all installed on the fixed plate, the output of motor with the one end of lead screw is connected, the slide both ends with slide rail swing joint, the other end of lead screw with the slide is connected, mount pad fixed mounting be in on the slide.

5. A novel milling machine as claimed in claim 4 wherein: and an auxiliary cylinder is arranged on the fixed plate and connected with the sliding plate.

6. A novel milling machine as claimed in claim 1 wherein: still be provided with tool changer on the fixed plate, tool changer includes the grudging post, drives actuating cylinder and the tight pipe of cover, grudging post one end with the face of fixed plate is connected perpendicularly, the grudging post other end with it connects perpendicularly to drive actuating cylinder, drive actuating cylinder's output with the tight union coupling of cover, drive actuating cylinder's direction of motion with the direction of motion of lead screw subassembly is unanimous.

7. A novel milling machine as claimed in claim 5 wherein: the fixed plate is also provided with a proximity sensor, and the upper end of the sliding plate is correspondingly provided with a detection plate.