CN209936499U - Constant force feeding device based on hard and brittle material processing - Google Patents
Constant force feeding device based on hard and brittle material processing Download PDFInfo
- Publication number
- CN209936499U CN209936499U CN201920726778.9U CN201920726778U CN209936499U CN 209936499 U CN209936499 U CN 209936499U CN 201920726778 U CN201920726778 U CN 201920726778U CN 209936499 U CN209936499 U CN 209936499U
- Authority
- CN
- China
- Prior art keywords
- hard
- brittle material
- base
- feeding device
- device based
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses a constant force feeding device based on hard and brittle material processing, the key points of the technical scheme are that the constant force feeding device comprises a frame, a control cabinet and a workbench, the workbench comprises a base and an operation board positioned above the base, at least three limiting rods are vertically fixed on the base, the limiting rods are uniformly distributed along the outer edge of the base, a plurality of limiting holes matched with the limiting rods are arranged on the operation board, a plurality of pressure sensors are abutted between the operation board and the base, each pressure sensor is electrically connected with the control cabinet, the control cabinet is electrically connected with a hydraulic cylinder, a slide seat connected with the frame in a vertical sliding manner is fixed on a hydraulic rod of the hydraulic cylinder, and a cutting device is arranged on the slide seat; the utility model aims at providing a constant force feeding device based on hard brittle material processing, invariable that can controlled pressure feeds, guarantees the processing integrality of hard brittle material.
Description
Technical Field
The invention relates to a detection device, in particular to a constant force feeding device based on hard and brittle material processing and a processing method thereof.
Background
With the rapid development of scientific technology and industrial production, hard and brittle materials represented by ceramics, quartz, neodymium-bonded boron, silicon, germanium, sapphire, zirconia, microcrystalline glass and the like are developed in a large number, and the application fields are more and more extensive. How to realize efficient precision milling of hard and brittle materials is always pursued by factories.
In the last century, ultrasonic processing has begun to be applied to various fields. Compared with the traditional cutting mode, the ultrasonic cutting head can apply certain Hertz vibration energy on scissors or a cut-off knife to help open the molecular structure inside the material, and the material can be more easily cut off by the cutter in the cutting process, so that efficient milling is realized; however, improper pressure control during ultrasonic processing can cause the hard and brittle material to crack, resulting in product failure. How to control the constant feeding of the pressure, reduce the internal stress of the workpiece, prevent cracks and breakage and ensure the processing integrity of the workpiece is a technical problem to be solved by people in the field.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a constant force feeding device based on hard and brittle material processing, which can control the constant feeding of pressure and ensure the processing integrity of hard and brittle materials.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a constant force feeding device based on processing of hard and brittle material, includes frame, switch board and workstation, the workstation includes the base and is located the operation panel of base top, the vertical at least three gag lever post that is fixed with on the base, the outer fringe department evenly distributed of base is followed to the gag lever post, set up a plurality of spacing holes of mutually supporting with the gag lever post on the operation panel, the butt has a plurality of pressure sensor, every between operation panel and the base pressure sensor all is connected with the switch board electricity, the switch board electricity is connected with the pneumatic cylinder, the hydraulic stem of pneumatic cylinder is fixed with the slide of being connected with the vertical sliding of frame, install cutting device on the slide.
Further setting up, the thing groove is put to operation panel upper surface downward seted up, it is fixed with the mounting panel to put the thing inslot, a plurality of dovetail that link up completely are seted up to the side of mounting panel, sliding fit has the connecting block in the dovetail, the top of connecting block upwards extends the formation screw rod, screw rod threaded connection has briquetting and nut.
Further, the number of the pressure sensors is three, and the pressure sensors are distributed in a regular triangle shape.
Further, the control cabinet is electrically connected with an alarm.
Further, the control cabinet is electrically connected with a display panel.
Further setting, the frame is improved level and is fixed with the slide rail, the bottom mounting of base has the slider with slide rail sliding fit.
The cutting device further comprises a motor, a spindle and a cutter, wherein the motor drives the cutter to rotate through the spindle.
The invention also provides a constant force feeding processing method based on the processing of the hard and brittle materials, which comprises the following steps:
(a) the feeding force is detected by the pressure sensor, an analog signal is transmitted to the display panel, the display panel immediately converts the feeding force into a digital signal and displays the digital signal, when the feeding force exceeds a threshold value, the alarm gives an alarm and outputs a control signal to the control cabinet, the control cabinet enables the cutting device to move back upwards through the hydraulic cylinder, and then the workpiece is continuously processed according to the original stroke;
(b) and resetting the sum of the gravity of the workpiece on the operating plate and the gravity of the abrasive suspension to be a standard value every time the workpiece is retracted.
In conclusion, compared with the prior art, the invention has the following beneficial effects:
firstly, in the processing process, the pressure sensor is used for detecting the feeding force, the constant feeding of the pressure is controlled, the internal stress of the workpiece is reduced, the crack and the breakage are prevented, and the processing integrity of the workpiece is ensured;
secondly, the operating board and the base are mutually matched through a plurality of limiting rods and limiting holes, so that the operating board can be prevented from tilting during cutting, the stress is more uniform, and the detection reliability of the pressure sensor is ensured;
thirdly, the workpiece can be better fixed through the connecting block, the pressing block and other fixtures, and product scrapping is avoided.
Drawings
Fig. 1 is a perspective structural view of an embodiment of a constant force feeding device based on hard and brittle material processing according to the present invention.
Fig. 2 is a perspective view of the table.
Fig. 3 is a perspective view of the connection block.
Fig. 4 is a partially enlarged view of a portion a in fig. 2.
Fig. 5 shows a bidirectional motor control interface circuit I.
Fig. 6 shows a bidirectional motor control interface circuit II.
In the figure: 1. a frame; 2. a control cabinet; 3. a work table; 31. a base; 311. a limiting rod; 312. a slider; 32. an operation panel; 321. a limiting hole; 322. a storage groove; 323. mounting a plate; 324. a dovetail groove; 4. a pressure sensor; 5. a slide base; 6. a cutting device; 7. connecting blocks; 71. a screw; 8. briquetting; 9. a display panel; 10. a first single chip microcomputer; 11. a second single chip microcomputer; 12. a buffer.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, a constant force feeding device based on hard and brittle material processing comprises a frame 1, a control cabinet 2 and a workbench 3, wherein the workbench 3 comprises a base 31 and an operating board 32 located above the base 31, at least three vertical limiting rods 311 (three points form a plane) are uniformly arranged at the outer edge of the base 31, a plurality of limiting holes 321 matched with the limiting rods 311 are formed in the operating board 32, a plurality of pressure sensors 4 are abutted between the operating board 32 and the base 31, in a specific embodiment, the number of the limiting rods 311 is four, the limiting rods 311 are respectively located at four corners of the base 31, in the actual processing process, because the feeding force at the position where a workpiece is placed may fall at the position where the operating board 32 deviates from the center, the operating board 32 can be prevented from tilting or shaking during cutting through the mutually matched limiting rods 311 and the limiting holes 321, so that the force is uniformly transmitted to the pressure sensors 4 below, the detection data is more reliable; each pressure sensor 4 is electrically connected with the control cabinet 2, the control cabinet 2 is electrically connected with a hydraulic cylinder (not shown in the figure), a sliding seat 5 which is vertically connected with the rack 1 in a sliding manner is fixed on a hydraulic rod of the hydraulic cylinder, a cutting device 6 is installed on the sliding seat 5, the pressure sensor 4 which is abutted against the operating plate 32 detects the size of the feeding force during cutting and outputs a signal to the control cabinet 2, when the feeding force exceeds a threshold value, the control cabinet 2 enables the cutting device 6 to retreat by a certain height through the hydraulic cylinder, and then the workpiece is continuously processed according to the original stroke; when the cutting device 6 is processed in place, the cutting device can automatically retract; in particular, the cutting means 6 comprise an electric motor, preferably an ultrasonic electric spindle, and a tool, wherein the electric motor drives the tool in rotation via the spindle and applies a certain hertz of vibration energy, cutting being effected indirectly via the abrasive suspension.
As shown in fig. 2, 3 and 4, a storage groove 322 is formed in the upper surface of the operating plate 32, a mounting plate 323 is fixed in the storage groove 322, a plurality of completely through dovetail grooves 324 are formed in the side surface of the mounting plate 323, when a workpiece is mounted, a workpiece is correspondingly placed on two sides of each dovetail groove 324, a connecting block 7 is in sliding fit in each dovetail groove 324, the connecting block 7 slides in from the side surface of each dovetail groove 324 and moves to the workpiece, the top end of the connecting block 7 extends upwards to form a screw 71, a pressing block 8 is connected to the screw 71 in a threaded manner, and the pressing block 8 is screwed by a nut after being connected with the screw 71 in a threaded manner so as to firmly press and; the workpiece can be better positioned through the connecting block 7, the pressing block 8 and other fixtures, and the machining precision and the machining integrity of the hard and brittle materials are better guaranteed during cutting.
In a specific embodiment, as shown in fig. 2, the number of the pressure sensors 4 is three, and the pressure sensors are distributed in a regular triangle, so that the stability can be improved, and the stress is more uniform.
In addition, as shown in fig. 1, the control cabinet 2 is further electrically connected with an alarm (not shown) and a display panel 9, the pressure sensor 4 detects the magnitude of the feeding force and transmits an analog signal to the display panel 9, the display panel 9 can immediately convert the feeding force into a digital signal and display the digital signal, different threshold values can be set according to needs, and when the feeding force exceeds the threshold values, the alarm gives an alarm and outputs a control signal to the control cabinet 2.
As shown in fig. 1 and 2, a slide rail is horizontally fixed on the frame 1, a slide block 312 is fixed at the bottom end of the base 31, and the movement of the worktable 3 in the X-axis direction can be realized through the slide rail and the slide block 312 which are matched with each other.
The invention relates to a constant force feeding processing method based on hard and brittle material processing, which comprises the following steps:
(a) the feeding force is detected by the pressure sensor 4, an analog signal is transmitted to the display panel 9, the display panel 9 immediately converts the feeding force into a digital signal and displays the digital signal, when the feeding force exceeds a threshold value, the alarm gives an alarm and outputs a control signal to the control cabinet 2, the control system automatically calls a backspacing subprogram to enable the cutting device 6 to backspace for a certain height (can be specified), and then the workpiece is continuously processed according to the original stroke; when the tool is machined in place, the tool can automatically retract;
(b) the sum of the gravity of the workpiece on the operation plate 32 and the gravity of the abrasive suspension is reset to a standard value every time the operation plate is retracted.
G1 and G2 are not constant values since the workpiece material is continuously removed during machining and the abrasive suspension is also fed cyclically; the feed force detection process is as follows:
the sum of the gravity G1 of the workpiece and the gravity G2 of the abrasive suspension is set to a standard value, i.e., the "null position".
The feed force can be given by F = F-G1-G2;
wherein, f is the feed force;
f-the detection value of the pressure sensor 4.
Thus, the magnitude of the feeding force f can be reflected in real time each time the workpiece on the operation plate 32 is returned to the standard value by resetting the sum of the gravity G1 of the workpiece and the gravity G2 of the abrasive suspension.
When the feeding force f exceeds the safety value f 0 (obtained by experiments), the normally open contact controlled by the display panel 9 is turned on, a DC24V voltage signal is output to the control cabinet 2, and the control cabinet 2 further calls a retraction subroutine to control the spindle retraction, and a control interface circuit thereof is shown in fig. 5.
As can be seen from FIG. 5, when S1 and S4 are closed, the motor is rotating forward at full speed; when S2 and S3 are closed, the motor is reversed.
Assuming that a PI port of a first singlechip 10 (model 8952) is an output port, and P1.1 and P1.0 are used as control bits, when the P1 port outputs 02H, the motor rotates forwards; when outputting 01H, the motor rotates reversely, when outputting 03H, the motor brakes; when 00H is output, the motor slides.
When the control cabinet 2 requires to control the rotation direction of the motor and the rotating speed of the motor, a common relay can not be used as a switch; because the response frequency of a general relay is low, the general relay generates jitter when being closed, and the general relay is unreliable in working in a pulse width speed regulating system; for this purpose, a transistor switch is used, as shown in fig. 6.
As shown in fig. 6, when the output of the P1 port of the second monolithic computer 11 (model 8031) is 02H (P1.1=1, P1.0-0), the 4# tri-state gate of the four-bus buffer 12 (model 74LS 125) is opened, so that S4 is closed, and similarly, the output of the 2# tri-state gate is "0", so that the control terminal of the 1# tri-state gate is also at "O" level, so that the 1# tri-state gate is also opened, so that the transistor switch S1 is turned on (i.e., S1 is closed); the transistor switches S1 and S4 respectively drive two darlington power amplification tubes (one is PNP type, the other is NPN type), so that the motor rotates forwards; on the contrary, when port P1 outputs 01H, S2 and S3 are closed, and the motor rotates reversely; the reason that the buffer 12 controls the connection is to ensure that errors do not short the power supply.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A constant force feeding device based on hard and brittle material processing is characterized in that: including frame (1), switch board (2) and workstation (3), workstation (3) include base (31) and operation panel (32) that are located base (31) top, vertically be fixed with at least three gag lever post (311) on base (31), the outer fringe department evenly distributed of base (31) is followed in gag lever post (311), set up a plurality of spacing holes (321) of mutually supporting with gag lever post (311) on operation panel (32), it has a plurality of pressure sensor (4), every to connect to have to support between operation panel (32) and base (31) pressure sensor (4) all are connected with switch board (2) electricity, switch board (2) electricity is connected with the pneumatic cylinder, the hydraulic stem of pneumatic cylinder is fixed with slide (5) of being connected with vertical sliding of frame (1), install cutting device (6) on slide (5).
2. The constant-force feeding device based on hard and brittle material processing as claimed in claim 1, characterized in that: operating panel (32) upper surface has seted up downwards and has been put thing groove (322), it has mounting panel (323) to put thing groove (322) internal fixation, a plurality of dovetail (324) that link up completely are seted up to the side of mounting panel (323), sliding fit has connecting block (7) in dovetail (324), the top of connecting block (7) upwards extends formation screw rod (71), screw rod (71) threaded connection has briquetting (8) and nut.
3. The constant force feeding device based on hard and brittle material processing as claimed in claim 1 or 2, characterized in that: the number of the pressure sensors (4) is three, and the pressure sensors are distributed in a regular triangle shape.
4. The constant-force feeding device based on hard and brittle material processing as claimed in claim 3, characterized in that: and the control cabinet (2) is electrically connected with an alarm.
5. The constant-force feeding device based on hard and brittle material processing as claimed in claim 4, characterized in that: the control cabinet (2) is electrically connected with a display panel (9).
6. The constant-force feeding device based on hard and brittle material processing as claimed in claim 5, characterized in that: a sliding rail is horizontally fixed on the rack (1), and a sliding block (312) in sliding fit with the sliding rail is fixed at the bottom end of the base (31).
7. The constant-force feeding device based on hard and brittle material processing as claimed in claim 6, characterized in that: the cutting device (6) comprises a motor, a spindle and a cutter, wherein the motor drives the cutter to rotate through the spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920726778.9U CN209936499U (en) | 2019-05-21 | 2019-05-21 | Constant force feeding device based on hard and brittle material processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920726778.9U CN209936499U (en) | 2019-05-21 | 2019-05-21 | Constant force feeding device based on hard and brittle material processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209936499U true CN209936499U (en) | 2020-01-14 |
Family
ID=69134734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920726778.9U Active CN209936499U (en) | 2019-05-21 | 2019-05-21 | Constant force feeding device based on hard and brittle material processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209936499U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052902A (en) * | 2019-05-21 | 2019-07-26 | 杭州精瑞科技有限公司 | A kind of constant force feeding device and its processing method based on hard brittle material processing |
| CN114682833A (en) * | 2022-06-01 | 2022-07-01 | 徐州威聚电子材料有限公司 | High-hardness plate pressure control type milling device |
-
2019
- 2019-05-21 CN CN201920726778.9U patent/CN209936499U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052902A (en) * | 2019-05-21 | 2019-07-26 | 杭州精瑞科技有限公司 | A kind of constant force feeding device and its processing method based on hard brittle material processing |
| CN110052902B (en) * | 2019-05-21 | 2024-04-09 | 杭州精瑞科技有限公司 | Constant force feeding device based on hard and brittle material processing and processing method thereof |
| CN114682833A (en) * | 2022-06-01 | 2022-07-01 | 徐州威聚电子材料有限公司 | High-hardness plate pressure control type milling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209936499U (en) | Constant force feeding device based on hard and brittle material processing | |
| CN110052902B (en) | Constant force feeding device based on hard and brittle material processing and processing method thereof | |
| CN103659371A (en) | Tool for fast positioning square workpiece | |
| CN209520646U (en) | A kind of machining center tool changing device | |
| CN204366507U (en) | Surface groove Milling Process positioning clamping device | |
| CN204525585U (en) | The flat sheet V cutting mill that four Z axis drive | |
| CN111376135A (en) | Industrial polycrystalline silicon chamfering device | |
| CN205438017U (en) | Piezoelectricity self -induction formula numerical control lathe knife rest reliability test system | |
| JP2012166292A (en) | Method, member and device for aligning axial position of each cutting tool in multi-spindle drilling machine | |
| CN101041188A (en) | Numerically controlled drilling machine | |
| CN212095420U (en) | Clamping device for water gap milling machine | |
| CN214291889U (en) | Triplex milling integrated processing structure | |
| CN205914831U (en) | Accurate numerical control double -end sawing machine | |
| CN112157454A (en) | Vertical machining center location frock | |
| CN101927433A (en) | Numerical control special fixture for ledge milling | |
| CN209954335U (en) | Six-axis double-tool magazine machining center | |
| CN213797024U (en) | Board positioning device of woodworking engraving machine | |
| CN213560386U (en) | Clamp for wire cut electrical discharge machine | |
| CN101987374A (en) | Special milling NC (numerical control) fixture machine tool of ledge | |
| CN208961543U (en) | Lathe is used in connecting rod oil line processing | |
| CN215902829U (en) | Tubular material cutting device with movable cutter | |
| CN104708329A (en) | Active control platform for large-scale plate high-speed milling noise and control method thereof | |
| CN209902338U (en) | Tool apron lifting device of double housing planer | |
| CN211389172U (en) | Woodworking numerical control profiling router with teaching system | |
| CN213561136U (en) | Automatic clamp of numerical control milling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |