CN114434324A - Grinding device with pressure feedback - Google Patents
Grinding device with pressure feedback Download PDFInfo
- Publication number
- CN114434324A CN114434324A CN202210124902.0A CN202210124902A CN114434324A CN 114434324 A CN114434324 A CN 114434324A CN 202210124902 A CN202210124902 A CN 202210124902A CN 114434324 A CN114434324 A CN 114434324A
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- China
- Prior art keywords
- main shaft
- spring
- peripheral main
- shaft
- spring shaft
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention belongs to the technical field of mechanical grinding, and particularly relates to a grinding device with pressure feedback, which comprises a spring shaft, a peripheral main shaft, a linear rotating bearing, a connecting piece, an elastic piece, a stress body and a pressure sensor, wherein the spring shaft is arranged on the periphery of the spring shaft; a channel is arranged in the peripheral main shaft, and the connecting piece, the elastic piece, the stress body and the pressure sensor are all positioned in the channel; the grinding head is connected with one end of the spring shaft, and the other end of the spring shaft extends into a channel of the peripheral main shaft to be connected with the elastic part; the linear rotating bearing is sleeved outside the spring shaft and is connected with the peripheral main shaft; the elastic piece is connected with one end of the stress body, and the other end of the stress body is connected with the pressure sensor; the spring shaft linearly moves along the direction of the peripheral main shaft through the elastic piece; the spring shaft is connected with the peripheral main shaft through a connecting piece and integrally rotates along with the peripheral main shaft through the connecting piece. The axial movement and the rotary movement of the spring shaft are kept independent, and the axial pressure of the grinding head can be accurately measured.
Description
Technical Field
The invention belongs to the technical field of mechanical grinding, and particularly relates to a grinding device with pressure feedback.
Background
In the field of numerical control machining of metal material grinding, particularly metal pipe material beveling and the like, the grinding amount of a grinding head and the surface quality of a ground workpiece are highly related to the contact pressure between the grinding head and the workpiece and the rotating speed of the grinding head, an existing numerical control system can accurately control the rotating speed of the grinding head, but the contact pressure between the grinding head and the workpiece cannot be input into the numerical control system as a real-time feedback amount to be controlled, and therefore accurate process grinding cannot be achieved.
Disclosure of Invention
The invention aims to solve the problems and provides a grinding device with pressure feedback.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a grinding device with pressure feedback comprises a grinding head, a spring shaft, a peripheral main shaft, a linear rotating bearing, a connecting piece, an elastic piece, a stress body and a pressure sensor, wherein the spring shaft is arranged on the periphery of the spring shaft; a channel is arranged in the peripheral main shaft, and the connecting piece, the elastic piece, the stress body and the pressure sensor are all positioned in the channel; the grinding head is connected with one end of the spring shaft, and the other end of the spring shaft extends into the channel of the peripheral main shaft to be connected with the elastic piece; the linear rotating bearing is sleeved outside the spring shaft and is connected with the peripheral main shaft; the elastic piece is connected with one end of the stress body, and the other end of the stress body is connected with the pressure sensor; the stress body and the pressure sensor are connected with the peripheral main shaft; the spring shaft linearly moves along the direction of the peripheral main shaft through the elastic piece; the spring shaft is connected with the peripheral main shaft through a connecting piece and integrally rotates along with the peripheral main shaft through the connecting piece.
Further, the connecting piece is the key driving medium, and the key driving medium is including setting up in the first keyway of passageway inner wall and setting up in the key of spring shaft outer wall, and peripheral main shaft passes through keyway and key looks adaptation and drives the spring shaft rotation.
Further, the outer wall of the spring shaft is provided with a second key groove for mounting the key.
Furthermore, a first stepped structure is arranged on the outer wall of the peripheral main shaft between the linear rotary bearing sleeve and the second key groove, and the diameter of the peripheral main shaft at the first stepped structure is larger than that of the peripheral main shaft in the linear rotary bearing.
Furthermore, the elastic element comprises a spring, one end of the spring is sleeved outside the spring shaft, and the other end of the spring is sleeved outside the stress body.
Furthermore, a second stepped structure is arranged on the outer wall of the peripheral main shaft between the second key groove and one end of the spring, and the diameter of the peripheral main shaft at the second stepped structure is larger than that of the peripheral main shaft inside the spring.
Furthermore, the outer wall of the stress body is provided with a circle of bulges, and the other end of the spring can prop against the bulges.
Furthermore, the tail end of the peripheral main shaft is connected with the slip ring, and a signal wire and a power wire of the pressure sensor penetrate out of the through hole and then are connected with a wiring terminal of the slip ring.
Furthermore, the outer wall of the peripheral main shaft is provided with a third key groove connected with an external transmission mechanism.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) the linear elasticity measuring system is formed by the spring shaft, the linear rotating bearing, the elastic piece, the stress body and the pressure sensor, and can accurately measure the axial pressure of the grinding head in the grinding process in real time. In addition, the peripheral main shaft drives the spring shaft to rotate through the connecting piece, and due to the action of the linear rotating bearing, the axial movement of the spring shaft under the action of axial pressure and the rotation are independent of each other and are in two non-interfering freedom degree movement forms. The device has a very simple and compact integral structure, can accurately measure the axial pressure of the grinding head in real time, and is very suitable for application of numerical control equipment in a high-speed grinding process;
(2) and a signal wire and a power wire of the pressure sensor penetrate out of an inner hole of the peripheral main shaft and are connected with the slip ring at the fixed position, so that a pressure signal can be transmitted to a corresponding controller.
Drawings
FIG. 1 is a schematic view of the internal structure of the present embodiment;
fig. 2 is a schematic external structural diagram of the present embodiment.
In the figure, 1 grinding head, 2 spring shaft, 3 end cover, 4 linear rotating bearing, 5 flat key, 6 spring, 7 force bearing body, 8 pressure sensor, 9 peripheral main shaft, 10 slip ring and 11 first key groove.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
As shown in fig. 1 and fig. 2, the grinding device with pressure feedback of the present embodiment includes a grinding head 1, and further includes a spring shaft 2, a peripheral spindle 9, a linear rotary bearing 4, a connecting member, an elastic member, a force-bearing body 7, and a pressure sensor 8. A channel is arranged in the peripheral main shaft 9, and the connecting piece, the elastic piece, the stress body 7 and the pressure sensor 8 are all positioned in the channel. The grinding head 1 is connected with one end of the spring shaft 2, and the other end of the spring shaft 2 extends into the peripheral main shaft 9 to be connected with the elastic part. The linear rotating bearing 4 is sleeved outside the spring shaft 2 and is connected with the peripheral main shaft 9. The elastic piece is connected with one end of the stress body 7, and the other end of the stress body 7 is connected with the pressure sensor 8. The stress body 7 and the pressure sensor 8 are both connected with a peripheral main shaft 9.
The spring shaft 2 is moved linearly in the direction of the peripheral main shaft 9 by means of an elastic member. The spring shaft 2 is connected with the peripheral main shaft 9 through a connecting piece, and the spring shaft 2 integrally rotates along with the peripheral main shaft 9 through the connecting piece. The grinding head 1 is fastened on the spring shaft 2 in a threaded connection mode, and the linear rotary bearing 4 is fixed on the peripheral main shaft 9 in a bolt connection mode. The lower end of the pressure sensor 8 is fixed in an internal threaded hole in the peripheral spindle 9 in a threaded manner. The spring 6 and the force bearing body 7 are fastened on the upper end of the pressure sensor 8 through a thread form.
The pressure sensor 8 is used to measure the contact pressure of the grinding head 1 with the workpiece. An external transmission mechanism such as a synchronous belt pulley or a gear can drive the peripheral main shaft 9 to rotate, and the peripheral main shaft 9 drives the grinding head 1, the spring shaft 2, the linear rotating bearing 4, the connecting piece, the elastic piece, the stress body 7 and the pressure sensor 8 to integrally rotate when rotating. During rotation, the peripheral spindle 9 can increase or decrease the length of the extension outside the passage when the contact pressure of the grinding head 1 with the workpiece changes. Therefore, in the embodiment, the spring shaft 2, the linear rotary bearing 4, the elastic member, the force-bearing body 7 and the pressure sensor 8 form a linear elasticity measuring system, so that the axial pressure applied to the grinding head 1 in the grinding process can be accurately measured in real time. In addition, the peripheral main shaft 9 drives the spring shaft 2 to rotate through the connecting piece, and due to the action of the linear rotating bearing 4, the axial movement of the spring shaft 2 under the axial pressure and the rotation are independent of each other and are in two non-interference freedom degree movement forms. The device has a very simple and compact integral structure, can accurately measure the axial pressure of the grinding head 1 in real time, and is very suitable for application of numerical control equipment in a high-speed grinding process.
The connecting piece of this embodiment is the key driving medium, and the key driving medium is including setting up in the first keyway 11 of passageway inner wall and setting up in the key of 2 outer walls of spring shafts, and peripheral main shaft 9 passes through keyway and key looks adaptations and drives the rotation of spring shafts 2. The first key groove 11 has a certain length, the spring shaft 2 can axially move under the support and constraint of the linear rotating bearing 4, the stroke of the spring shaft axially moving in the channel of the peripheral spindle 9 is determined by the length of the first key groove 11 of the peripheral spindle 9, and the key can collide with the first key groove 11 of the peripheral spindle 9. In order to facilitate the installation of the key matching with the key groove, the outer wall of the spring shaft 2 is provided with a second key groove for installing the key. The key is a round flat key 5. The key and the second key groove form a key transmission structure. A first key groove 11 with a certain length is formed in a through hole of the peripheral main shaft 9, a second key groove is formed in the spring shaft 2, and the round-head flat key 5 can be installed in the second key groove. The key and the second key groove form a key transmission structure, and the peripheral main shaft 9 enables the spring shaft 2 to rotate through the key transmission mode.
The outer wall of the peripheral main shaft 9 between the sleeve of the linear rotating bearing 4 and the second key groove is provided with a first stepped structure, and the diameter of the peripheral main shaft 9 at the first stepped structure is larger than that of the peripheral main shaft 9 in the linear rotating bearing 4. The front end of the spring shaft 2 is fitted with the linear rotary bearing 4, and the first stepped structure at the rear end of the spring shaft 2 has a larger diameter than the front end and is stepped. When the spring shaft 2 axially moves towards the outside of the channel of the peripheral main shaft 9, the step at the first step-shaped structure of the spring shaft 2 collides with the linear rotating bearing 4, so that constraint is formed. The first stepped structure of the present embodiment is a two-step structure.
The elastic component comprises a spring 6, one end of the spring 6 is sleeved outside the spring shaft 2, and the other end of the spring is sleeved outside the stress body 7. The force-bearing body 7 is an elastic force-bearing body 7. Specifically, the inner ring of the spring 6 is sleeved on the stud part at the upper end of the stress body 7, the stud part at the lower end of the spring shaft 2 is inserted into the inner ring of the spring 6, the spring shaft 2 axially moves towards the inside of the peripheral main shaft 9, and the spring 6 directly acts on the stress body 7.
The outer wall of a peripheral main shaft 9 between the second key groove and one end of the spring 6 is provided with a second stepped structure, the diameter of the peripheral main shaft 9 at the second stepped structure is larger than that of the peripheral main shaft 9 inside the spring 6, and a step at the second stepped structure of the spring shaft 2 can be abutted against the spring 6 so as to install and fix the spring 6. The outer wall of the stress body 7 is provided with a circle of bulges, and the other end of the spring 6 can be propped against the bulges so as to install and fix the spring 6. The second stepped structure of the present embodiment is a two-step structure.
The head end of the peripheral main shaft 9 is provided with an end cover 3 sleeved outside the shaft of the spring 6. The tail end of the peripheral main shaft 9 is connected with a slip ring 10, and a signal wire and a power wire of the pressure sensor 8 penetrate out of the through hole and then are connected with a wiring terminal of the slip ring 10. The slip ring 10 is fixedly mounted at the rear end of the peripheral main shaft 9.
And a third key groove connected with an external transmission mechanism is formed in the outer wall of the peripheral main shaft 9. An external transmission mechanism such as a synchronous pulley or a gear can drive the peripheral main shaft 9 to rotate through a key arranged in the third key groove.
The use principle of the embodiment is as follows: in the grinding process, the external transmission mechanism drives the peripheral main shaft 9 to rotate, and the peripheral main shaft 9 drives the spring shaft 2 and the grinding head 1 to integrally rotate through the key transmission belt; in the process of rotating the grinding head 1, when the contact pressure of the grinding head 1 and a workpiece is changed, the spring shaft 2 and the grinding head 1 integrally move along the axial direction of the spring shaft 2 and are close to or far away from a channel in the peripheral main shaft 9; the pressure is transmitted to the force-bearing body 7 through the spring 6, and the pressure sensor 8 senses and senses the pressure of the force-bearing body 7 and presents the pressure in a numerical mode.
In summary, in this embodiment, the spring shaft 2, the linear rotary bearing 4, the spring 6, the elastic force-bearing body 7 and the pressure sensor 8 together form a linear elasticity measuring system, so that the axial pressure applied to the grinding head 1 during the grinding process can be accurately measured in real time. The peripheral main shaft 9 drives the spring shaft 2 to rotate in a key transmission mode, and due to the supporting and restraining effect of the linear rotating bearing 4, the axial movement of the spring shaft 2 under the axial pressure and the rotation movement are independent and do not interfere with each other.
While the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that variations may be made in the embodiments without departing from the spirit of the invention, and such variations are to be considered within the scope of the invention.
Claims (9)
1. The utility model provides a take pressure feedback's grinding device, includes the grinding head, its characterized in that:
the device also comprises a spring shaft, a peripheral main shaft, a linear rotating bearing, a connecting piece, an elastic piece, a stress body and a pressure sensor; a channel is arranged in the peripheral main shaft, and the connecting piece, the elastic piece, the stress body and the pressure sensor are all positioned in the channel; the grinding head is connected with one end of the spring shaft, and the other end of the spring shaft extends into a channel of the peripheral main shaft to be connected with the elastic part; the linear rotating bearing is sleeved outside the spring shaft and is connected with the peripheral main shaft; the elastic piece is connected with one end of the stress body, and the other end of the stress body is connected with the pressure sensor; the stress body and the pressure sensor are connected with the peripheral main shaft;
the spring shaft linearly moves along the direction of the peripheral main shaft through the elastic piece; the spring shaft is connected with the peripheral main shaft through a connecting piece and integrally rotates along with the peripheral main shaft through the connecting piece.
2. A grinding apparatus with pressure feedback according to claim 1, characterized in that: the connecting piece is a key transmission piece, the key transmission piece comprises a first key groove formed in the inner wall of the channel and a key arranged on the outer wall of the spring shaft, and the peripheral main shaft drives the spring shaft to rotate through the matching of the key groove and the key.
3. A grinding apparatus with pressure feedback according to claim 2, characterized in that: and a second key groove for mounting the key is formed in the outer wall of the spring shaft.
4. A grinding apparatus with pressure feedback as defined in claim 3 wherein: the outer wall of the peripheral main shaft between the linear rotating bearing sleeve and the second key groove is provided with a first stepped structure, and the diameter of the peripheral main shaft at the first stepped structure is larger than that of the peripheral main shaft in the linear rotating bearing.
5. A grinding apparatus with pressure feedback according to claim 3, characterized in that: the elastic piece comprises a spring, one end of the spring is sleeved outside the spring shaft, and the other end of the spring is sleeved outside the stress body.
6. A grinding apparatus with pressure feedback according to claim 5, characterized in that: and a second stepped structure is arranged on the outer wall of the peripheral main shaft between the second key groove and one end of the spring, and the diameter of the peripheral main shaft at the second stepped structure is larger than that of the peripheral main shaft in the spring.
7. A grinding apparatus with pressure feedback according to claim 5, characterized in that: the outer wall of the stress body is provided with a circle of bulges, and the other end of the spring can prop against the bulges.
8. A grinding apparatus with pressure feedback according to any of claims 1 to 7, characterized in that: the tail end of the peripheral main shaft is connected with the slip ring, and a signal wire and a power wire of the pressure sensor are connected with a wiring terminal of the slip ring after penetrating out of the through hole.
9. A grinding apparatus with pressure feedback according to any of claims 1 to 7, characterized in that: and a third key groove connected with an external transmission mechanism is formed in the outer wall of the peripheral main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124902.0A CN114434324A (en) | 2022-02-10 | 2022-02-10 | Grinding device with pressure feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124902.0A CN114434324A (en) | 2022-02-10 | 2022-02-10 | Grinding device with pressure feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114434324A true CN114434324A (en) | 2022-05-06 |
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ID=81372158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210124902.0A Pending CN114434324A (en) | 2022-02-10 | 2022-02-10 | Grinding device with pressure feedback |
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| Country | Link |
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| CN (1) | CN114434324A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115383566A (en) * | 2022-09-16 | 2022-11-25 | 宁夏欧晶科技有限公司 | Device for automatically repairing outer diameter of quartz crucible |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3614672A1 (en) * | 1986-04-30 | 1987-11-05 | Bernhard Homm | Device for simulating and measuring the forces or moments occurring at a spindle press |
| CN201755793U (en) * | 2010-06-23 | 2011-03-09 | 王建军 | Grinding machine grinding head floating support device |
| CN202010716U (en) * | 2010-09-30 | 2011-10-19 | 安徽巨一自动化装备有限公司 | Robot elastic rolling tool |
| CN105649528A (en) * | 2016-03-22 | 2016-06-08 | 安徽理工大学 | Intelligent fracture-preventing core drilling machine and use method thereof |
| CN106378704A (en) * | 2016-10-28 | 2017-02-08 | 南宁宇立仪器有限公司 | Flexible polishing device |
| CN206795504U (en) * | 2017-04-13 | 2017-12-26 | 金华职业技术学院 | A kind of frequency conversion angle electric mill power driven tools |
| CN211880715U (en) * | 2020-01-15 | 2020-11-06 | 深圳市邦正精密机械有限公司 | Head pasting device with pressure detection function |
-
2022
- 2022-02-10 CN CN202210124902.0A patent/CN114434324A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3614672A1 (en) * | 1986-04-30 | 1987-11-05 | Bernhard Homm | Device for simulating and measuring the forces or moments occurring at a spindle press |
| CN201755793U (en) * | 2010-06-23 | 2011-03-09 | 王建军 | Grinding machine grinding head floating support device |
| CN202010716U (en) * | 2010-09-30 | 2011-10-19 | 安徽巨一自动化装备有限公司 | Robot elastic rolling tool |
| CN105649528A (en) * | 2016-03-22 | 2016-06-08 | 安徽理工大学 | Intelligent fracture-preventing core drilling machine and use method thereof |
| CN106378704A (en) * | 2016-10-28 | 2017-02-08 | 南宁宇立仪器有限公司 | Flexible polishing device |
| CN206795504U (en) * | 2017-04-13 | 2017-12-26 | 金华职业技术学院 | A kind of frequency conversion angle electric mill power driven tools |
| CN211880715U (en) * | 2020-01-15 | 2020-11-06 | 深圳市邦正精密机械有限公司 | Head pasting device with pressure detection function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115383566A (en) * | 2022-09-16 | 2022-11-25 | 宁夏欧晶科技有限公司 | Device for automatically repairing outer diameter of quartz crucible |
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