CN110355630B - Pneumatic boring machine grinding device - Google Patents
Pneumatic boring machine grinding device Download PDFInfo
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- CN110355630B CN110355630B CN201910736910.9A CN201910736910A CN110355630B CN 110355630 B CN110355630 B CN 110355630B CN 201910736910 A CN201910736910 A CN 201910736910A CN 110355630 B CN110355630 B CN 110355630B
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- 230000000670 limiting effect Effects 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000003746 surface roughness Effects 0.000 description 5
- 238000005553 drilling Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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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
- 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
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention provides a pneumatic boring machine grinding device which comprises a boring machine body, a horizontal rotation chuck, an air inlet distribution assembly, a rotation limiting assembly and a pneumatic grinding assembly, wherein the air inlet distribution assembly comprises an inner air inlet disc, an outer air inlet ring, a first air inlet pipe fitting and a second air inlet pipe fitting, the inner air inlet disc is connected with the horizontal rotation chuck, and the outer air inlet ring is rotatably sleeved on the outer side of the inner air inlet disc. The inner wall of outer air inlet ring and/or the outer wall of inner air inlet disc are provided with air inlet grooves, the air inlet grooves and the inner wall of outer air inlet ring and/or the outer wall of inner air inlet disc surround to form an air inlet cavity, the first air inlet pipe fitting is arranged on the outer air inlet ring and communicated with the air inlet cavity, the second air inlet pipe fitting is arranged on the inner air inlet disc, and the air inlet end is communicated with the air inlet cavity. The flat chuck drives the inner air inlet disc to rotate, so that the pneumatic grinding assembly connected to the inner air inlet disc rotates along the hole wall of the inner hole of the workpiece, the pneumatic grinding assembly is pneumatically driven to rotate, the workpiece is ground, the machining precision is high, the safety risk is reduced, and the grinding machining efficiency is improved.
Description
Technical Field
The invention relates to the technical field of grinding equipment, in particular to a pneumatic boring machine grinding device.
Background
A boring machine is a machine tool that bores a hole in a workpiece by using a boring tool, and generally, rotation of the boring tool is a main motion, and movement of the boring tool or the workpiece is a feed motion. The processing precision and the surface quality of the drilling machine are higher than those of a drilling machine. The boring machine is the main equipment for processing large box parts. However, the conventional boring machine has limited machining accuracy and surface roughness after machining, and cannot meet the requirements on the machining accuracy and the surface roughness under special conditions.
In the prior art, a boring machine grinding device provided is used for grinding the surface of a workpiece by adding a motor and a grinding wheel on a facing head of a boring machine so as to improve the surface processing precision and the surface roughness of the workpiece. However, the grinding wheel is driven by the electric driving method, on one hand, the electric safety hazard exists in the complicated operation environment of the boring machine in the working process, and on the other hand, the speed characteristic of the grinding wheel driven by the electric driving method is hard, the rotating speed of the grinding wheel is low, and the processing efficiency is low for a high-precision workpiece needing to be processed by the grinding method.
Disclosure of Invention
Therefore, the pneumatic boring machine grinding device with low safety risk and high machining efficiency needs to be provided for solving the technical problems of high safety risk and low machining efficiency in the process of grinding the surface of a workpiece by driving the grinding wheel in an electric mode in the prior art.
The utility model provides a pneumatic boring machine grinding device, includes the boring machine body and connects the chuck of flat revolving on affiliated boring machine body, still includes:
the air inlet distribution assembly comprises an inner air inlet disc, an outer air inlet ring, a first air inlet pipe fitting and a second air inlet pipe fitting, the inner air inlet disc is connected with the flat spin chuck, and the outer air inlet ring is rotatably sleeved on the outer side of the inner air inlet disc; an air inlet groove is formed in the inner wall of the outer air inlet ring and/or the outer wall of the inner air inlet disc, the air inlet groove, the inner wall of the outer air inlet ring and/or the outer wall of the inner air inlet disc surround to form an air inlet cavity, the first air inlet pipe fitting is arranged on the outer air inlet ring and communicated with the air inlet cavity, the second air inlet pipe fitting is arranged on the inner air inlet disc, and the air inlet end of the second air inlet pipe fitting is communicated with the air inlet cavity;
one end of the rotary limiting assembly is fixedly connected with the outer air inlet ring, and the other end of the rotary limiting assembly can do linear reciprocating motion relative to the boring machine body; and
and the pneumatic grinding assembly is arranged on the inner air inlet disc, and a power mechanism of the pneumatic grinding assembly is connected with the air outlet end of the second air inlet pipe fitting.
In one embodiment, the inner air intake disc includes a driving disc and an air intake disc, the driving disc is connected to the flat spin chuck and has an air intake pipe fitting installation cavity, the air intake disc is connected to the driving disc, the outer side wall of the air intake disc is provided with the air intake groove, the air intake disc is provided with a first air intake duct along the radial direction, the inlet end of the first air intake duct is communicated with the groove bottom of the air intake groove, the outlet end of the first air intake duct is communicated with the air intake pipe fitting installation cavity, the length of the first air intake duct is smaller than the radius of the air intake disc, and the second air intake pipe fitting is connected to the outlet end of the first air intake duct.
In one embodiment, the outer air inlet ring comprises a fixing ring and an air inlet ring, the air inlet ring is connected with the fixing ring, the fixing ring is connected with the rotation limiting assembly, a second air inlet hole is formed in the air inlet ring, the inlet end of the second air inlet hole is communicated with the first air inlet pipe fitting, and the outlet end of the second air inlet hole is communicated with the air inlet cavity.
In one embodiment, the outer intake ring is rotatably coupled to the outer side of the inner intake disc by a roller bearing.
In one embodiment, the rotation limiting assembly comprises a fixed baffle and a limiting rod, the fixed baffle is fixedly connected to the boring machine body, one side of the fixed baffle is provided with a pair of limiting slide blocks, one end of the limiting rod is fixedly connected with the outer air inlet ring, and the other end of the limiting rod penetrates through the pair of limiting slide blocks and can do linear reciprocating motion relative to the fixed baffle.
In one embodiment, the limiting slide block is rotatably connected with the fixed baffle.
In one embodiment, the pneumatic grinding assembly comprises a mounting seat, a pneumatic grinding head and a grinding wheel, the mounting seat is provided with a hollow hole, the air outlet end of the second air inlet pipe fitting is connected with a driving mechanism of the pneumatic grinding head, and the grinding wheel is mounted at the moving end of the pneumatic grinding head.
In one embodiment, a first eccentric mounting groove is formed in the flat spin chuck, and the inner air inlet disc is fixedly mounted in the first eccentric mounting groove; the one end that interior air inlet dish deviates from the chuck is provided with the eccentric mounting groove of second, pneumatic grinding subassembly fixed mounting in the eccentric mounting groove of second.
In one embodiment, a sealing groove is formed in the inner wall of the outer air inlet ring or the outer wall of the inner air inlet disc, the sealing groove is formed in two sides of the air inlet cavity, and a sealing gasket is arranged in the sealing groove.
In one embodiment, a lubricating oil film is coated on the contact part of the inner wall of the outer air inlet ring and the outer wall of the inner air inlet disc.
The pneumatic boring machine grinding device drives the inner air inlet disc to rotate by utilizing the flat rotary chuck, so that the pneumatic grinding assembly connected to the air inlet inner disc rotates along the hole wall of the inner hole of the workpiece, the pneumatic grinding assembly is driven to rotate by high-pressure gas, the inner hole of the workpiece is ground, the machining precision is high, and the surface roughness of the machined workpiece is obviously improved. An outer air inlet ring is rotatably arranged on the outer side of the inner air inlet disc, an air inlet groove is formed in the inner wall of the outer air inlet ring and/or the outer wall of the inner air inlet disc, the air inlet groove, the inner wall of the outer air inlet ring and/or the outer wall of the inner air inlet disc surround to form an air inlet cavity, high-pressure air firstly enters the air inlet cavity through the first air inlet pipe fitting and enters the second air inlet pipe fitting through the air inlet cavity, and finally the pneumatic grinding assembly is driven to rotate. The outer air inlet ring is limited by the rotation limiting assembly, so that the outer air inlet ring cannot rotate relative to the boring machine body or can rotate at a small angle, and an external high-pressure air pipe is prevented from being wound. The inner air inlet disc is driven by the flat spin chuck to rotate relative to the outer air inlet ring, in the rotating process, a complete closed air inlet cavity is always formed at the contact surface of the inner air inlet disc and the outer air inlet ring, the second air inlet pipe fitting is fixed on the inner air inlet disc and rotates along with the inner air inlet disc, the inlet end of the second air inlet pipe fitting is always communicated with the air inlet cavity, the second air inlet pipe fitting is prevented from being wound, pneumatic driving is achieved, the pneumatic grinding assembly carries out grinding on a workpiece, safety risks are reduced, and grinding efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a pneumatic boring machine grinding device according to an embodiment.
Fig. 2 is a side view of a pneumatic boring machine grinding apparatus of an embodiment.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a partially enlarged view of a portion a shown in fig. 3.
Fig. 5 is a sectional view taken along line B-B of fig. 2.
In the figure: the pneumatic boring machine grinding device 10, the boring machine body 20, the flat spin chuck 30, the first eccentric mounting groove 31, the air inlet distribution assembly 100, the air inlet cavity 101, the second air inlet duct 102, the first air inlet duct 103, the roller bearing 104, the sealing groove 105, the inner air inlet disc 110, the second eccentric mounting groove 1101, the driving disc 111, the air inlet disc 112, the outer air inlet ring 120, the fixing ring 121, the air inlet ring 122, the first air inlet pipe 130, the second air inlet pipe 140, the rotation limiting assembly 200, the fixing baffle 210, the limiting rod 220, the limiting slide block 230, the pneumatic grinding assembly 300, the mounting seat 310, the pneumatic grinding head 320 and the grinding wheel 330.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "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. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like 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. To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In one embodiment, a pneumatic grinding device for a boring machine comprises a boring machine body and a flat spin chuck connected to the boring machine body, and further comprises: the pneumatic grinding device comprises an air inlet distribution assembly, a rotation limiting assembly and a pneumatic grinding assembly, wherein the air inlet distribution assembly comprises an inner air inlet disc, an outer air inlet ring, a first air inlet pipe fitting and a second air inlet pipe fitting, the inner air inlet disc is connected with a flat spiral chuck, and the outer air inlet ring is rotatably sleeved on the outer side of the inner air inlet disc; the inner wall of the outer air inlet ring and/or the outer wall of the inner air inlet disc are/is provided with an air inlet groove, the air inlet groove and the inner wall of the outer air inlet ring and/or the outer wall of the inner air inlet disc surround to form an air inlet cavity, the first air inlet pipe fitting is arranged on the outer air inlet ring and communicated with the air inlet cavity, the second air inlet pipe fitting is arranged on the inner air inlet disc, and the air inlet end is communicated with the air inlet cavity. One end of the rotation limiting assembly is fixedly connected with the outer air inlet ring, and the other end of the rotation limiting assembly can do linear reciprocating motion relative to the boring machine body. The pneumatic grinding assembly is mounted on the inner air inlet disc, and a power mechanism of the pneumatic grinding assembly is connected with the air outlet end of the second air inlet pipe fitting.
The pneumatic boring machine grinding device drives the inner air inlet disc to rotate by utilizing the flat rotary chuck, so that the pneumatic grinding assembly connected to the air inlet inner disc rotates along the hole wall of the inner hole of the workpiece, the pneumatic grinding assembly is driven to rotate by high-pressure gas, the inner hole of the workpiece is ground, the machining precision is high, and the surface roughness of the machined workpiece is obviously improved. The outer air inlet ring is limited by the rotation limiting assembly, so that the outer air inlet ring cannot rotate relative to the boring machine body or can rotate at a small angle, and an external high-pressure air pipe is prevented from being wound. The inner air inlet disc is driven by the flat spin chuck to rotate relative to the outer air inlet ring, in the rotating process, a complete closed air inlet cavity is always formed at the contact surface of the inner air inlet disc and the outer air inlet ring, the second air inlet pipe fitting is fixed on the inner air inlet disc and rotates along with the inner air inlet disc, the inlet end of the second air inlet pipe fitting is always communicated with the air inlet cavity, the second air inlet pipe fitting is prevented from being wound, pneumatic driving is achieved, the pneumatic grinding assembly carries out grinding on a workpiece, safety risks are reduced, and grinding efficiency is improved.
The pneumatic boring machine grinding device is described below with reference to specific embodiments to further understand the inventive concept of the pneumatic boring machine grinding device.
Referring to fig. 1 to 5, in an embodiment, a pneumatic boring machine grinding device 10 includes a boring machine body 20 and a spin chuck 30 connected to the boring machine body 20, and further includes: the air inlet distribution assembly 100, the rotation limiting assembly 200 and the pneumatic grinding assembly 300.
The intake distribution assembly 100 includes an inner intake disc 110, an outer intake ring 120, a first intake pipe 130 and a second intake pipe 140, the inner intake disc 110 is connected to the flat spin chuck 30, the outer intake ring 120 is rotatably sleeved on the outer side of the inner intake disc 110, for example, the outer intake ring 120 is rotatably connected to the outer side of the inner intake disc 110 through a roller bearing 104, so as to improve the rotation precision and reduce the interface friction. An air inlet groove is formed in the inner wall of the outer air inlet ring 120 and/or the outer wall of the inner air inlet disc 110, the air inlet groove and the inner wall of the outer air inlet ring 120 and/or the outer wall of the inner air inlet disc 110 surround to form an air inlet cavity 101, the first air inlet pipe fitting 130 is arranged on the outer air inlet ring 120 and communicated with the air inlet cavity 101, the second air inlet pipe fitting 140 is arranged on the inner air inlet disc 110, and an air inlet end of the second air inlet pipe fitting is communicated with the air inlet cavity 101.
For example, the outer air inlet ring 120 is rotatably sleeved outside the inner air inlet disc 110, the air inlet groove is formed on the outer side wall of the inner air inlet disc 110, the inner wall of the outer air inlet ring 120 contacts with the outer wall of the inner air inlet disc 110, and the air inlet cavity 101 is formed in the air inlet groove. A second air inlet duct 102 penetrating through the wall of the outer air inlet ring 120 is formed in the outer air inlet ring 120 along the radial direction, and the air inlet duct is communicated with the air inlet cavity 101. The inner air intake disc 110 is provided with a first air intake duct 103 along the radius direction, the length of the first air intake duct 103 is smaller than the radius of the inner air intake disc 110, that is, the inlet end of the first air intake duct 103 is communicated with the air intake cavity 101, and the air outlet end is led out from the position between the connection lines of the circle center and the circumference of the inner air intake disc 110 and is connected with the inlet end of the second air intake pipe 140.
For another example, the inner sidewall of the outer air inlet ring 120 is provided with the air inlet slot, the inner sidewall of the outer air inlet ring 120 contacts the outer sidewall of the inner air inlet disc 110, and the air inlet cavity 101 is formed in the air inlet slot.
For another example, the air inlet grooves are formed on both the inner side annular wall of the outer air inlet ring 120 and the outer side annular wall of the inner air inlet disc 110, and the two air inlet grooves are close to each other to form the air inlet cavity 101.
One end of the rotation limiting assembly 200 is fixedly connected to the outer air inlet ring 120, and the other end of the rotation limiting assembly can reciprocate linearly relative to the boring machine body 20. For example, the rotation limiting assembly 200 includes a fixed baffle 210 and a limiting rod 220, the fixed baffle 210 is fixedly connected to the boring machine body 20, one side of the fixed baffle is provided with a pair of limiting sliders 230, one end of the limiting rod 220 is fixedly connected to the outer air inlet ring 120, and the other end of the limiting rod passes through between the pair of limiting sliders 230 and can reciprocate linearly relative to the fixed baffle 210. Preferably, the position-limiting slider 230 is a cylinder and is rotatably connected to the fixed baffle 210, or the position-limiting slider 230 itself has a rotatable mechanism, such as a surface-mounted roller, to reduce the reciprocating sliding friction between the position-limiting rod 220 and the position-limiting slider 230.
The pneumatic grinding assembly 300 is installed on the inner air inlet disc 110, and a power mechanism of the pneumatic grinding assembly 300 is connected to the air outlet end of the second air inlet pipe 140. For example, the pneumatic grinding assembly 300 includes a mounting base 310, a pneumatic grinding head 320 and a grinding wheel 330, the mounting base 310 has a hollow hole, the air outlet end of the second air inlet pipe 140 is connected to the driving mechanism of the pneumatic grinding head 320, and the grinding wheel 330 is mounted at the movable end of the pneumatic grinding head 320. That is, the mounting seat 310 is fixedly mounted on the inner air intake disc 110, the outlet end of the second air intake pipe 140 passes through the inner air intake disc 110 and passes through the hollow hole of the mounting seat 310 to be connected with the driving mechanism of the pneumatic grinding head 320 mounted at one end of the mounting seat 310, so as to drive the pneumatic grinding head 320 to rotate at a high speed, and the grinding wheel 330 is mounted at the output end of the pneumatic grinding head 320, so as to finish grinding the surface of the workpiece.
In the above-mentioned embodiment, when carrying out work piece hole abrasive machining operation, the flat chuck 30 drive interior air intake dish 110 is rotatory, and then the drive connect in interior air intake dish 110 is last pneumatic grinding subassembly 300 is close to the inner wall rotation of treating the grinding work piece hole, will first air inlet pipe fitting 130 connects external high-pressurepipe, to pneumatic grinding subassembly 300 provides high-pressure gas, and pneumatic drive pneumatic grinding subassembly 300 is high-speed rotatory, treats the inner wall of grinding work piece hole and carries out abrasive machining, realizes the pneumatic drive grinding, has reduced the safety risk, has improved abrasive machining's efficiency.
During the grinding operation, the inner air inlet disc 110 is driven to rotate by the flat spin chuck 30, the outer air inlet ring 120 performs small-amplitude rotation or deflection displacement relative to the boring machine body 20 under the limiting action of the rotation limiting assembly 200, so that the inner air inlet disc 110 rotates in the outer air inlet ring 120, and the outer air inlet ring 120 can only displace in a limited space, so that an external high-pressure air pipe is prevented from being wound due to the rotation of the outer air inlet ring 120.
In the process of air inlet, the inner air inlet disc 110 rotates in the outer air inlet ring 120, but the outer annular wall of the inner air inlet disc and the inner annular wall of the outer air inlet ring 120 always form a closed annular air inlet cavity 101, high-pressure air enters the air inlet cavity 101 through the first air inlet pipe fitting 130 and enters the driving mechanism of the pneumatic grinding assembly 300 through the second air inlet pipe fitting 140, and the pneumatic grinding assembly 300 is driven to rotate at a high speed. In the process, the second air inlet pipe 140 rotates along with the inner air inlet disc 110, and the inlet end of the second air inlet pipe 140 rotates relative to the air inlet cavity 101, so that air inlet is realized, and the second air inlet pipe 140 is prevented from being wound.
With reference to fig. 2 to 5, in a preferred embodiment, the inner air intake disc 110 includes a driving disc 111 and an air intake disc 112, the driving disc 111 is connected to the flat-spin chuck 30, preferably, the driving disc 111 is detachably connected to the flat-spin chuck 30, for example, by a bolt and a nut, and has an air intake pipe fitting cavity, the air intake disc 112 is connected to the driving disc 111, the air intake groove is formed on an outer side wall of the air intake disc 112, a first air intake duct 103 is formed on the air intake disc 112 along a radial direction, an inlet end of the first air intake duct 103 is communicated with a groove bottom of the air intake groove, an outlet end of the first air intake duct 103 is communicated with the air intake pipe fitting cavity, a length of the first air intake duct 103 is smaller than a radius of the air intake disc 112, and the second air intake pipe 140 is connected to an outlet.
Further, the outer air inlet ring 120 includes a fixing ring 121 and an air inlet ring 122, the air inlet ring 122 is connected to the fixing ring 121, preferably, the air inlet ring 122 is detachably connected to the fixing ring 121, for example, the fixing ring 121 is connected to the rotation limiting assembly 200 through a bolt and a nut, the air inlet ring 122 is provided with a second air inlet hole 102, an inlet end of the second air inlet hole 102 is communicated with the first air inlet pipe 130, and an outlet end of the second air inlet hole is communicated with the air inlet cavity 101.
In the above embodiment, when the pneumatic boring machine grinding device 10 needs to be inspected and maintained, the fixing ring 121 and the air inlet ring 122 are disassembled and taken down, and the driving disc 111 and the air inlet disc 112 are disassembled and taken down, so as to complete the maintenance of the connecting bearing, the mechanical seal and other structures, the installation is convenient and simple, the maintenance is convenient,
with reference to fig. 2 to 5, in another preferred embodiment, in order to improve the adaptability of the pneumatic boring machine grinding device 10 to different bore diameters, a first eccentric mounting groove 31 is formed on the flat spin chuck 30, and the inner air intake disc 110 is fixedly mounted in the first eccentric mounting groove 31. For example, the inner air inlet disc 110 is fixedly installed in the first eccentric installation groove 31 through a plurality of T-shaped bolts arranged in parallel, and the installation position can be adjusted in the first eccentric installation groove 31 to meet the grinding requirements of workpieces with different apertures.
Further, one end of the inner air inlet disc 110, which faces away from the flat spin chuck 30, is provided with a second eccentric mounting groove 1101, and the pneumatic grinding assembly 300 is fixedly mounted in the second eccentric mounting groove 1101. For example, the pneumatic grinding assembly 300 is fixedly installed in the second eccentric installation groove 1101 through self-tightening bolts, and the installation position can be adjusted along the second eccentric installation groove 1101, so as to further meet the grinding requirements of workpieces with different bore diameters.
With reference to fig. 2 to 5, in another preferred embodiment, a sealing groove 105 is formed on an inner wall of the outer air intake ring 120 or an outer wall of the inner air intake disc 110, the sealing groove 105 is formed on two sides of the air intake cavity 101, and a sealing gasket is disposed in the sealing groove to seal high-pressure air and prevent air leakage or air pressure reduction.
Further, the contact surface of the outer intake ring 120 and the inner intake disc is coated with a lubricating oil film to further enhance sealing and reduce interfacial friction during rotation.
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 express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a pneumatic boring machine grinding device, includes the boring machine body and connect in the chuck of flat revolving on the boring machine body, its characterized in that still includes:
the air inlet distribution assembly comprises an inner air inlet disc, an outer air inlet ring, a first air inlet pipe fitting and a second air inlet pipe fitting, the inner air inlet disc is connected with the flat spin chuck, and the outer air inlet ring is rotatably sleeved on the outer side of the inner air inlet disc;
an air inlet groove is formed in the inner wall of the outer air inlet ring, and an air inlet cavity is formed by the air inlet groove and the outer wall of the inner air inlet disc in a surrounding mode; or
An air inlet groove is formed in the outer wall of the inner air inlet disc, and an air inlet cavity is formed by the air inlet groove and the inner wall of the outer air inlet ring in a surrounding mode; or
The inner wall of the outer air inlet ring and the outer wall of the inner air inlet disc are both provided with air inlet grooves which are arranged oppositely and surround to form an air inlet cavity;
one end of the rotary limiting assembly is fixedly connected with the outer air inlet ring, and the other end of the rotary limiting assembly can do linear reciprocating motion relative to the boring machine body; and
and the pneumatic grinding assembly is arranged on the inner air inlet disc, and a power mechanism of the pneumatic grinding assembly is connected with the air outlet end of the second air inlet pipe fitting.
2. The grinding device for the pneumatic boring machine as claimed in claim 1, wherein the inner air inlet disc comprises a driving disc and an air inlet disc, the driving disc is connected with the flat spin chuck and has an air inlet pipe fitting installation cavity, the air inlet disc is connected with the driving disc, the air inlet groove is formed in the outer side wall of the air inlet disc, a first air inlet duct is formed in the air inlet disc in the radial direction, the inlet end of the first air inlet duct is communicated with the groove bottom of the air inlet groove, the outlet end of the first air inlet duct is communicated with the air inlet pipe fitting installation cavity, the length of the first air inlet duct is smaller than the radius of the air inlet disc, and the second air inlet pipe fitting is connected with the outlet end of the first air inlet duct.
3. The pneumatic grinding device for the boring machine as claimed in claim 1 or 2, wherein the outer air inlet ring comprises a fixed ring and an air inlet ring, the air inlet ring is connected with the fixed ring, the fixed ring is connected with the rotation limiting assembly, a second air inlet duct is formed in the air inlet ring, the inlet end of the second air inlet duct is communicated with the first air inlet pipe fitting, and the outlet end of the second air inlet duct is communicated with the air inlet cavity.
4. The pneumatic boring machine grinding apparatus of claim 3 wherein the outer air inlet ring is rotatably connected to the outside of the inner air inlet disc by a roller bearing.
5. The grinding device for the pneumatic boring machine as claimed in claim 1, wherein the rotation limiting assembly comprises a fixed baffle and a limiting rod, the fixed baffle is fixedly connected to the boring machine body, one side of the fixed baffle is provided with a pair of limiting slide blocks, one end of the limiting rod is fixedly connected to the outer air inlet ring, and the other end of the limiting rod passes through between the pair of limiting slide blocks and can linearly reciprocate relative to the fixed baffle.
6. The pneumatic boring machine grinding device of claim 5 wherein the stop block is rotatably connected to the retainer plate.
7. The pneumatic boring machine grinding device as claimed in claim 1, wherein the pneumatic grinding assembly comprises a mounting base, a pneumatic grinding head and a grinding wheel, the mounting base has a hollow hole, the air outlet end of the second air inlet pipe fitting is connected with a driving mechanism of the pneumatic grinding head, and the grinding wheel is mounted at the moving end of the pneumatic grinding head.
8. The pneumatic grinding device for the boring machine as claimed in claim 1, wherein the facing chuck is provided with a first eccentric mounting groove, and the inner air intake disc is fixedly mounted in the first eccentric mounting groove;
the one end that interior air inlet dish deviates from the chuck is provided with the eccentric mounting groove of second, pneumatic grinding subassembly fixed mounting in the eccentric mounting groove of second.
9. The grinding device for the pneumatic boring machine according to claim 1, wherein a sealing groove is formed in an inner wall of the outer air inlet ring or an outer wall of the inner air inlet disc, the sealing groove is formed in two sides of the air inlet cavity, and a sealing washer is arranged in the sealing groove.
10. The pneumatic grinding device for the boring machine as claimed in claim 1, wherein a lubricating oil film is coated on a portion where the inner wall of the outer air inlet ring contacts with the outer wall of the inner air inlet disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736910.9A CN110355630B (en) | 2019-08-10 | 2019-08-10 | Pneumatic boring machine grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736910.9A CN110355630B (en) | 2019-08-10 | 2019-08-10 | Pneumatic boring machine grinding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110355630A CN110355630A (en) | 2019-10-22 |
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| CN203863510U (en) * | 2014-03-20 | 2014-10-08 | 南通市电站阀门有限公司 | Self-tightening seal belt processing tool for large-scale brake valve body middle cavity |
| CN105437080B (en) * | 2014-09-02 | 2017-11-03 | 鸿富锦精密工业（深圳）有限公司 | Workpiece polishing mechanism |
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Denomination of invention: Pneumatic boring machine grinding device Granted publication date: 20201030 Pledgee: China Construction Bank Corporation Huizhou Dayawan Branch Pledgor: Huizhou Dayawan Yuanda Petrochemical Machinery Co.,Ltd. Registration number: Y2024980010842 |
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