CN217913919U

CN217913919U - Numerical control turntable type multi-station tool grinding machine

Info

Publication number: CN217913919U
Application number: CN202221396908.5U
Authority: CN
Inventors: 王仲林
Original assignee: DANYANG SHENGLI MACHINERY CO LTD
Current assignee: DANYANG SHENGLI MACHINERY CO LTD
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-11-29
Anticipated expiration: 2032-06-06

Abstract

The utility model discloses a numerical control carousel formula multistation instrument grinding machine. The automatic machining device comprises a disc capable of being driven to rotate by an indexing turntable and a plurality of workpiece clamping and rotating devices which are distributed on the disc at equal intervals along the circumference, feeding devices and machining devices are further distributed around the disc, the machining devices and the workpiece clamping devices can move in a reciprocating mode relatively after corresponding to each other to achieve sequential machining of all procedures, a sliding ring mechanism is arranged on a machine body, and cables and pipelines of the workpiece clamping and rotating devices are connected with an external access source after being output through the sliding ring mechanism. The advantages are that: the processing of a plurality of procedures can be finished on one device, and each procedure can be synchronously processed, so that the working efficiency is improved, the product quality is ensured, the occupied space is small, the cost of the whole device is low, the installation and the maintenance are convenient, the working reliability is high, and the indexing precision is high; moreover, the interference of cables and various pipelines in the synchronous processing process is avoided.

Description

Numerical control turntable type multi-station tool grinding machine

Technical Field

The utility model relates to a numerical control carousel formula multistation instrument grinding machine that is used for toolings such as drill bit, milling cutter.

Background

The manufacture of machining tools such as drills, milling cutters, step drills, center drills and the like can be completed through a plurality of processes from bar stock or rough formed raw materials. Taking a drill as an example, the machining processes of grinding a groove, cleaning an edge, opening and grinding a double clearance angle (chisel edge) are required from the rough machining of a bar; taking a center drill as an example, processing procedures such as groove grinding, tip shoveling, opening and the like are required to be carried out from bars at two tip parts of rough processing; taking a milling cutter as an example, it is necessary to perform machining processes such as groove grinding, edge cleaning, opening, end tooth machining and the like from a bar stock.

To complete the above-mentioned machining process of such tools, the following machining methods and apparatuses are conventionally used:

in the first processing mode, one special machine tool is provided for each process. Taking a drill as an example, a ditch is ground, edges are cleared, an opening is formed, and double relief angles (cross edges) are machined by one machine tool respectively, and the defects of the machine tool are that a tool semi-finished product is conveyed back and forth, the workload is large, the machined cutting edge is easy to be damaged in the stacking and conveying processes, the occupied area of the used machine tool is large, and the cutting edge of a workpiece is also damaged by repeated clamping and positioning reference point searching and grinding. 4 machines are needed for one drill bit, and the labor consumption is large.

The second machining method is machining using a grinding center. The processing mode is one-time clamping, and the required grinding wheels are automatically selected by the machine tool according to different processing procedures to be sequentially processed. Although this method of machining avoids the disadvantages of the first method of machining, only a single grinding wheel is grinding in each pass and the other grinding wheels are waiting in line. Taking a drill as an example, the first grinding wheel grinds the groove first, the grinding wheel is replaced after the groove is finished, the edge is cleaned, the grinding wheel is replaced after the edge is cleaned, the opening is formed, the double relief angle (chisel edge) of the grinding wheel is replaced after the opening is finished, and the machining efficiency is extremely low. In addition, due to the limitation of the machine tool structure, only a grinding wheel with a smaller diameter can be selected, for example, a common grinding center machine tool can only select a grinding wheel with a diameter of about 100, and even a smaller grinding wheel can be selected for machining. In order to avoid frequently dressing the grinding wheel, only the expensive diamond grinding wheel with less dressing times or other grinding wheels with the performance similar to the diamond grinding wheel can be selected, so that the machining efficiency is reduced, and the machining cost is also increased.

The third mode is that a plurality of processing stations are arranged on one device, a plurality of workpiece clamping stations are arranged on a central turntable, and the rotation of the workpiece and the indexing conversion between the stations are completed through complex gear transmission, power mechanisms of processing cutters or grinding wheels corresponding to all the working procedures are distributed on the periphery of the turntable, and all the processing mechanisms move back and forth in the radial direction of the turntable, so that the feeding cutting (grinding) action of all the working procedures is realized. The actions of all working parts of the equipment are distributed by a centralized power device through a gear and a clutch device, the structure is very complex, the manufacture is difficult, and the processing precision and the station conversion precision are not easy to guarantee; meanwhile, the power mechanism for processing the cutter or the grinding wheel moves in the radial direction on the periphery of the turntable to realize processing feeding, so that the space required for finishing the processing action is large, the volume of the equipment is increased, and the difficulty is brought to the transportation and installation of the equipment;

in addition, if complex gear transmission is not adopted, independent power devices such as driving motors and the like are required to be independently arranged on each station, the conventional treatment mode is to supply power or oil (gas) to the power devices through cables suspended above the wheel disc, so that the rotation division of the wheel disc is limited, the wheel disc cannot rotate continuously and can only rotate forwards and backwards periodically, and the processing efficiency is greatly reduced.

Disclosure of Invention

The utility model aims to solve the technical problem that a plurality of manufacturing procedure that can accomplish machining tools such as drill bit, milling cutter on an equipment are provided, need not a lot of clamping, and machining efficiency is high to overall structure is simple, compact, numerical control carousel formula multistation instrument grinding machine that the action precision is high.

In order to solve the technical problem, the utility model discloses a numerical control carousel formula multistation tool grinding machine, include can be by on rotatory disc of indexing table drive and the disc along a plurality of work piece clamping rotating device that are used for the centre gripping work piece and drive the work piece rotation that the circumference equidistance distributes, still arrange around the disc can rotate in-process and each the work piece clamping rotating device position a loading attachment and a plurality of processingequipment that correspond in proper order, each processingequipment and each can relative reciprocating motion realize processing in proper order of each process after mutually corresponding between the work piece clamping rotating device, have sliding ring mechanism on the lathe bed, work piece clamping rotating device's cable and pipeline all are connected with outside access source after sliding ring mechanism exports.

The feeding device comprises a material box for placing bars, a feeding groove located at the outlet of the material box and connected with the material box, a bar pushing device used for sequentially pushing the bars placed in the material box into the feeding groove, and a feeding pushing device used for pushing the bars entering the feeding groove to a workpiece clamping and rotating device for clamping.

Each workpiece clamping and rotating device comprises a driving mechanism for driving the workpiece clamping mechanism to clamp the workpiece and an indexing motor for driving the workpiece to rotate and index.

The disc is provided with a plurality of sliding tables which are equidistantly distributed along the circumference and driven by sliding table motors, each sliding table respectively moves towards the machining device or the feeding device, and the workpiece clamping and rotating device is arranged on each sliding table and can move in a reciprocating manner under the driving of each sliding table.

And the cable of the sliding table motor, the cable of the rotary indexing motor and the pipeline of the driving mechanism are connected with an external access source after being output by the sliding ring mechanism.

The feeding device is installed on the fixed seat.

The direct fixed mounting of disc has the tight rotary device of work piece clamp that a plurality of equidistance distribute, each processingequipment all installs on can be by the slide motor drive towards the slide of the tight rotary device reciprocating motion of work piece clamp.

The feeding device is installed on the fixed seat.

The utility model has the advantages of:

the device comprises a circular disc driven by an indexing turntable to rotate and a plurality of workpiece clamping and rotating devices which are distributed on the circular disc at equal intervals along the circumference and can be mutually corresponding to each processing device and relatively reciprocate to realize sequential processing of each process, so that processing of a plurality of processes can be finished on one device and each process can be synchronously processed; on one hand, the problems of workload and damage caused by semi-finished products, back-and-forth clamping, back-and-forth carrying, queuing and dressing of grinding wheels in the traditional various processing modes and errors caused by positioning are avoided, so that the working efficiency is improved, the product quality is ensured, the occupied space is small, and the cost of the whole set of equipment is low; on the other hand, the rotary disc is directly driven by the indexing turntable, so that the whole equipment does not have complex transmission mechanisms such as gears, clutch devices and the like, and does not need to lift the turntable to complete power transmission, thereby not only further reducing the equipment cost, but also ensuring convenient installation and maintenance, high working reliability, high indexing precision, shortening the processing time and further improving the working efficiency; moreover, the problem of cable and oil (gas) path output in the rotating process of the disc is fully considered, all cables and required (oil, gas and the like) pipelines can be connected with an external access source after being output by the slip ring mechanism through the slip ring mechanism which is skillfully arranged, the interference of the cables and various pipelines in the machining process can be avoided, and therefore all machining stations can be synchronously machined.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic view of the cross-sectional structure A-A of FIG. 1;

fig. 3 is a schematic structural diagram of a second embodiment of the present invention.

Detailed Description

The numerical control turntable type multi-station tool grinding machine of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The first embodiment is as follows:

as shown in fig. 1 and 2, the numerically controlled rotating disc type multi-station tool grinding machine of the present embodiment includes an indexing rotary disc 2 mounted on a machine body 1 and a disc 3 mounted on the indexing rotary disc, the disc 3 has a plurality of workpiece clamping and rotating devices 4 which are equidistantly distributed and used for clamping and driving a workpiece to rotate, wherein each workpiece clamping and rotating device 4 includes a driving mechanism 13 for driving the workpiece clamping mechanism to clamp the workpiece and an indexing motor 14 for driving the workpiece to rotate and index, the driving mechanism 13 may be a hydraulic device, an air pressure device or a driving motor, etc., the indexing motor 14 may be driven to rotate by a conventional motor through a transmission or directly driven by a rotating direct drive motor (the front and rear clamping cylinders and clamping shafts of the rotating direct drive motor are used as workpiece clamping mechanisms) to rotate, the workpiece can be driven by the driving mechanism 13 to clamp the workpiece clamping shaft on the workpiece clamping mechanism, the workpiece can be driven by the indexing motor 14 to rotate and index, the indexing rotary disc can be directly driven by the rotary disc motor to rotate, so that the work tasks of a plurality of apparatuses can be completed on one conventional disc apparatus, the occupied area is small, and the supporting facilities thereof are also greatly reduced;

a feeding device 6 and a plurality of processing devices are further distributed around the disc 3, a drill is taken as a required processed product for example, five workpiece clamping and rotating devices 4 are arranged on the disc 3 at equal intervals, the processing devices comprise a grinding wheel groove grinding processing device for grinding grooves at a first station, a grinding wheel edge cleaning processing device for cleaning edges at a second station, a grinding wheel opening processing device for opening at a third station and a grinding wheel double-relief angle processing device for processing double-relief angles (cross edges) at a fourth station, and each workpiece clamping and rotating device 4 can sequentially correspond to the feeding device 6, the grinding wheel groove grinding processing device, the grinding wheel edge cleaning processing device, the grinding wheel opening processing device and the grinding wheel double-relief angle processing device in the rotating process of the turntable; five sliding tables 11 which are equidistantly distributed along the circumference and driven by sliding table motors 12 to reciprocate are arranged on the disc 3, the sliding table motors 12 can be selected to be a driving mode of matching a servo motor with a screw rod, or can be directly selected to be direct-driven motors, the sliding tables 11 can be arranged along the radial direction of the disc, or can be obliquely arranged (not in the radial position) on the disc, in short, only the sliding tables can reciprocate towards a processing device positioned at the periphery of the disc or towards a feeding device positioned at the periphery of the disc, each workpiece clamping and rotating device 4 is respectively arranged on one sliding table and can reciprocate in the radial direction under the driving of each sliding table, the feeding device 6, the grinding wheel groove grinding processing device, the grinding wheel edge cleaning processing device, the grinding wheel opening processing device and the grinding wheel double-relief angle processing device are respectively and fixedly arranged on respective fixed seats, so that under the rotation of the disc, the processing devices and the workpiece clamping and rotating devices 4 can be correspondingly and relatively moved in a reciprocating manner to realize the sequential processing of each process, each workpiece can be clamped once to finish the processing of a plurality of processes, repeated positioning and point finding are not needed in the processing process, a plurality of grinding wheels are simultaneously ground, one workpiece rotates one circle to finish all the processes, five workpieces are processed by one circle rotation of the disc, one machine tool is equivalent to 4 special machines, the working efficiency is high, meanwhile, a plurality of cooling systems, an oil supply system and a power supply system are changed into one machine to realize, and the energy is obviously saved; the bed body 1 is provided with a slip ring mechanism 5 vertically arranged (on a central line), and as can be seen from the figure, in the embodiment, the slip ring mechanism is installed on the bed body through a holder and vertically extends out of the upper part of the disc, and various cables (power lines, encoder lines and other control lines) of the sliding table motor 12, various cables of the rotary indexing motor 14, and (hydraulic pressure, air pressure, lubrication and other pipelines) of the driving mechanism 13 are all connected with external access sources (such as a power supply, a hydraulic pressure source, an air pressure source and the like) after being output through the slip ring mechanism 5, so that the winding of the cables and various pipelines in the working process is ingeniously avoided, and in addition, the slip ring mechanism can adopt slip rings of MEPH600 series produced by Mobil technology company.

Furthermore, the feeding device 6 comprises a material box 7 for placing the bar stock, a feeding groove 8 which is positioned at the outlet of the material box and is connected with the material box, a bar stock pushing device 9 for sequentially pushing the bar stock placed in the material box into the feeding groove, and a feeding pushing device 10 for pushing the bar stock entering the feeding groove to the workpiece clamping and rotating device 4 for clamping, wherein the bar stock can be conveyed to the corresponding workpiece clamping and rotating device 4 through the feeding device and clamped by the workpiece clamping shaft.

Of course, in the technical solution, the feeding device 6 may also adopt a mechanical arm (for example, the working position is a bar stock with different diameters at the front end and the rear end) to feed the workpiece, and actually, based on the concept of the present invention, on the basis of having a workpiece clamping and rotating device which can be mutually corresponding to each processing device and relatively reciprocate to realize each process, an independent feeding station is designed to match with other processing stations to perform non-stop feeding, and the feeding station does not influence manual feeding except the feeding mode, and realizes the purpose of processing without stopping the machine.

The working principle is as follows:

taking a drill as an example, when a first bar is pushed into a workpiece clamping shaft from a feeding device 6, after the workpiece is clamped, an indexing turntable 2 is directly driven by a turntable motor to start rotating, the indexing turntable is transferred to a first station, a first process of groove grinding starts to process, meanwhile, the feeding device 6 continues to feed materials, after the two processes are finished, the turntable starts to rotate and is transferred to a second station, at this time, the feeding device feeds the grinding groove of the first process and the cleaning edge of the second process simultaneously work, until complete cycle processing is carried out, wherein in the whole processing process, when one workpiece returns to the feeding station after all processes are finished, the machined workpiece is directly subjected to mechanical or manual unloading at the feeding station and then continues to feed materials, so that continuous machining of other processing stations is not influenced.

Through verification, compared with the traditional multiple special machine tools, the numerical control turntable type multi-station tool grinding machine has the advantages that the occupied area is small, the labor force and the energy are saved, the cost of matched facilities is saved by more than 60%, the machining precision of workpieces is obviously improved, compared with a grinding center, the efficiency of the workpieces in four procedures is improved by more than 70%, the efficiency of the workpieces in three procedures is improved by 60%, the utilization range of grinding wheels is wider, and the large grinding wheel with high power can be used for grinding; compared with the traditional gear transmission type turntable machine tool, the gear transmission type turntable machine tool has the advantages of simple structure, convenience in maintenance, lower maintenance cost, more convenient action and higher efficiency, and avoids the reduction of the precision of a processed workpiece caused by the abrasion formed by multiple meshing of gears.

Example two:

as shown in fig. 2, the numerically controlled rotary table type multi-station tool grinding machine of the present embodiment is substantially the same as the first embodiment, and is different in that a plurality of equally spaced workpiece clamping and rotating devices 4 are directly and fixedly mounted on a circular disc 3, a feeding device 6 is separately mounted on a fixed base, and each machining device is fixedly mounted on a slide 16 which can be driven by a slide motor 15 to reciprocate.

Claims

1. The utility model provides a numerical control carousel formula multistation instrument grinding machine which characterized in that: the automatic workpiece clamping and rotating device comprises an indexing turntable (2) arranged on a lathe bed (1), a plurality of workpiece clamping and rotating devices (4) which are used for clamping workpieces and driving the workpieces to rotate and are distributed on the disc (3) at equal intervals along the circumference, a feeding device (6) and a plurality of processing devices which are sequentially corresponding to the workpiece clamping and rotating devices (4) in the disc rotating process are further distributed around the disc (3), each processing device corresponds to each workpiece clamping and rotating device (4) and can move in a reciprocating mode relatively to sequentially process each process, a sliding ring mechanism (5) is arranged on the lathe bed (1), and cables and pipelines of the workpiece clamping and rotating devices (4) are connected with an external access source after being output through the sliding ring mechanism (5).

2. The numerical control turntable type multi-station tool grinding machine according to claim 1, characterized in that: the feeding device (6) comprises a material box (7) for placing bars, a feeding groove (8) located at the outlet of the material box and connected with the material box, a bar pushing device (9) for sequentially pushing the bars placed in the material box into the feeding groove and a feeding pushing device (10) for pushing the bars entering the feeding groove to a workpiece clamping and rotating device (4) for clamping.

3. The numerically controlled rotary disc type multi-station tool grinding machine according to claim 1 or 2, wherein: each workpiece clamping and rotating device (4) comprises a driving mechanism (13) for driving the workpiece clamping mechanism to clamp the workpiece and an indexing motor (14) for driving the workpiece to rotationally index.

4. The numerical control turntable type multi-station tool grinding machine according to claim 3, characterized in that: the disc (3) is provided with a plurality of sliding tables (11) which are equidistantly distributed along the circumference and driven by sliding table motors (12), the sliding tables (11) are respectively and equally divided into machining devices which respectively face each other or feeding devices, and the workpiece clamping and rotating devices (4) are arranged on the sliding tables and can be driven by the sliding tables to move back and forth.

5. The numerical control turntable type multi-station tool grinding machine according to claim 4, characterized in that: cables of the sliding table motor (12), cables of the rotary indexing motor (14) and pipelines of the driving mechanism (13) are all connected with an external access source after being output through the sliding ring mechanism (5).

6. The numerically controlled rotary disc type multi-station tool grinding machine according to claim 5, wherein: and the feeding device (6) is arranged on the fixed seat.

7. The numerically controlled rotary disc type multi-station tool grinding machine according to claim 3, wherein: disc (3) direct fixed mounting has work piece clamping and rotating device (4) that a plurality of equidistance distribute, each processingequipment all installs on can be driven by slide motor (15) towards work piece clamping and rotating device (4) reciprocating motion's slide (16).

8. The numerically controlled rotary disc type multi-station tool grinding machine according to claim 7, wherein: and the feeding device (6) is arranged on the fixed seat.