CN210849706U - Polishing arm - Google Patents
Polishing arm Download PDFInfo
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- CN210849706U CN210849706U CN201921873218.2U CN201921873218U CN210849706U CN 210849706 U CN210849706 U CN 210849706U CN 201921873218 U CN201921873218 U CN 201921873218U CN 210849706 U CN210849706 U CN 210849706U
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- joint
- hexagonal
- tooth surface
- protective pipe
- pipe sleeve
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Abstract
The utility model discloses a polishing arm, which comprises a protective pipe sleeve, wherein the protective pipe sleeve is provided with an arc section and a straight cylinder section, a first joint, a second joint and a third joint are arranged in the arc section of the protective pipe sleeve, and a transmission connector and a driving shaft are arranged in the straight cylinder section; the front end of the first joint is connected with the grinding head, the rear end of the first joint is provided with a first rear inclined tooth surface, the front end and the rear end of the second joint are respectively provided with a second front inclined tooth surface and a second rear inclined tooth surface, and the front end of the third joint is provided with a third front inclined tooth surface; the first back sloping tooth surface is meshed with the second front sloping tooth surface, and the second back sloping tooth surface is meshed with the third front sloping tooth surface; the rear end of the third joint is connected with the front end of the transmission connector, and the rear end of the transmission connector is connected with the driving shaft. Compared with the prior art, the utility model the advantage be: the polishing arm of the utility model can extend into the inner cavity of the elbow to complete the polishing process at one time, and the processing efficiency is high; intelligent control and simple operation.
Description
Technical Field
The utility model relates to a burnishing machine especially relates to a polishing arm.
Background
At present, the polishing equipment for the inner wall of the elbow in the market adopts a soft polishing shaft at the arc corner, and the soft polishing shaft has the following defects: 1. The precision controllability of the soft polishing shaft is poor; 2. the corner with the radius is easy to generate heat; 3. the torsion difference is low; 4. the material is easy to break and the service life is not long; 5. if the flexible polishing flexible shaft is a telescopic polishing flexible shaft, the pressure can not be controlled and kept at 360 degrees in the polishing work, and the pressure can not be balanced by positioning the workpiece because the flexible polishing flexible shaft has stress elasticity. Therefore, the development of a polishing arm is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a polishing arm for solving the above insufficiency of the prior art.
The above object of the present invention is achieved by the following technical solutions: a polishing arm comprises a protective pipe sleeve, wherein the protective pipe sleeve is provided with an arc section and a straight cylinder section, a first joint, a second joint and a third joint are arranged in the arc section of the protective pipe sleeve, and a transmission connector and a driving shaft are arranged in the straight cylinder section; the front end of the first joint is connected with the grinding head, the rear end of the first joint is provided with a first rear inclined tooth surface, the front end and the rear end of the second joint are respectively provided with a second front inclined tooth surface and a second rear inclined tooth surface, and the front end of the third joint is provided with a third front inclined tooth surface; the first back sloping tooth surface is meshed with the second front sloping tooth surface, and the second back sloping tooth surface is meshed with the third front sloping tooth surface; the rear end of the third joint is connected with the front end of the transmission connector, and the rear end of the transmission connector is connected with the driving shaft.
Furthermore, a grinding head connecting end is arranged at the front end of the first joint, a first bearing group is sleeved at the middle rear part of the first joint and fixed inside the arc section of the protective pipe sleeve through the first bearing group, and the grinding head connecting end at the front end is exposed out of the front end of the arc section of the protective pipe sleeve.
According to the difference of the grinding head, the grinding head connecting end is a threaded connecting end, a multi-petal connecting end or a pressing type grinding head quick connecting mechanism.
Further, the threaded end is cylindrical or conical.
Furthermore, the pressing type grinding head quick connecting mechanism comprises a circular hole groove arranged at the front end of the first joint, a first spring, a telescopic pressing rod, steel balls and a locking screw, wherein steel ball exposing holes are formed in the side wall of the circular hole groove, and an internal thread opening is formed in the front end of the circular hole groove; the side wall of the middle section of the telescopic pressing rod is provided with an inwards concave ring groove, and the front end of the telescopic pressing rod is provided with a pressing end; the steel ball is assembled in the concave ring groove of the telescopic pressing rod, the first spring and the telescopic pressing rod assembled with the steel ball are sequentially installed in the circular hole groove, the locking screw is provided with a central through hole and is locked in the internal thread opening at the end of the circular hole groove, and the pressing end of the telescopic pressing rod penetrates through the central through hole of the locking screw.
Furthermore, the second joint comprises a telescopic hexagonal shaft, a second spring, a second front helical tooth piece and a second rear helical tooth piece, wherein a second front hexagonal hole and a second rear hexagonal hole are respectively formed in the second front helical tooth piece and the second rear helical tooth piece, a limiting protrusion is arranged on the telescopic hexagonal shaft, the second spring is mounted on the telescopic hexagonal shaft and located on the rear side of the limiting protrusion, the front end of the telescopic hexagonal shaft is inserted into the second front hexagonal hole, the rear end of the telescopic hexagonal shaft penetrates through the second spring and is inserted into the second rear hexagonal hole, and the rear end of the second spring abuts against the front end face of the second rear helical tooth piece; and the second front skewed tooth piece and the second rear skewed tooth piece are sleeved with a second bearing group and are fixed inside the arc section of the protective pipe sleeve through the second bearing group.
Furthermore, the third joint comprises a fixed hexagonal shaft, a third front helical gear and a third rear helical gear, the third front helical gear and the third rear helical gear are respectively provided with a third front hexagonal hole and a third rear hexagonal hole, and the front end and the rear end of the fixed hexagonal shaft are respectively inserted into the third front hexagonal hole and the third rear hexagonal hole; and the third front skewed tooth piece and the third rear skewed tooth piece are sleeved with a third bearing group and are fixed inside the arc section of the protective pipe sleeve through the third bearing group.
Further, the transmission connector comprises a front pipe and a hexagonal rear rod, a hexagonal end head is arranged at the front end of the front pipe and is inserted into a third rear hexagonal hole, a hexagonal hole groove is formed in the rear end of the front pipe, a third spring is installed in the hexagonal hole groove, the hexagonal rear rod is inserted into the hexagonal hole groove and compresses the third spring, and the rear end of the hexagonal rear rod is connected with the driving shaft.
Furthermore, the front end of the driving shaft is provided with a hexagonal port which is in butt joint with the rear end of the hexagonal rear rod, and the driving shaft is sleeved with a rear end bearing and is fixed at the rear port of the protective pipe sleeve through the rear end bearing.
Further, the protective pipe sleeve comprises a main shell, an access hole is formed in the side wall of the main shell, a sealing cover is arranged at the access hole, and the sealing cover is connected with the main shell through screws.
Compared with the prior art, the utility model the advantage be: the polishing arm of the utility model can extend into the inner cavity of the elbow to complete the polishing process at one time, and the processing efficiency is high; intelligent control and simple operation. Specifically, the method comprises the following steps:
(1) the intelligent control system is easy and controllable through intellectualization and gas element assistance;
(2) the engaging torque of the joint tooth surface is larger;
(3) the material is not easy to break and has long service life;
(4) the controllability of the balance pressure is good, and the stability and the reliability are high;
(5) the protective pipe sleeve is made of rigid materials, so that the strength is better.
Drawings
Fig. 1 is a schematic view of the appearance structure of the present invention.
Fig. 2 is a schematic sectional structure of the present invention.
Fig. 3 is a schematic view of the connection structure of the components inside the present invention.
Fig. 4 is a schematic structural view of the first joint of the present invention.
Fig. 5 is a schematic structural view of a second joint of the present invention.
Fig. 6 is a schematic structural view of a third joint of the present invention.
Fig. 7 is a schematic structural diagram of the middle transmission connector of the present invention.
Fig. 8 is a schematic structural view of the middle driving shaft of the present invention.
Figure 9 is a schematic view of a first embodiment of the connecting end of the middle grinding head of the present invention.
Fig. 10 is a schematic view of a second embodiment of the connecting end of the middle grinding head according to the present invention.
Figure 11 is a schematic view of a third embodiment of the connecting end of the middle grinding head of the present invention.
Fig. 12 is a schematic view of a fourth embodiment of the connecting end of the middle grinding head of the present invention.
Fig. 13 is a schematic view of a fifth embodiment of the connecting end of the middle grinding head according to the present invention.
Fig. 14 is a schematic view of a sixth embodiment of the connecting end of the middle grinding stone of the present invention.
Fig. 15 is a schematic view of a seventh embodiment of the connecting end of the middle grinding head of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following examples.
As shown in fig. 1, 2 and 3, a polishing arm comprises a protective sleeve 1, wherein the protective sleeve 1 is provided with an arc section 1-1 and a straight cylinder section 1-2, a first joint 2, a second joint 3 and a third joint 4 are installed in the arc section 1-1 of the protective sleeve 1, and a transmission connector 5 and a driving shaft 6 are installed in the straight cylinder section 1-2; the front end of the first joint 2 is connected with a grinding head (not shown), the rear end of the first joint is provided with a first rear inclined tooth surface 2-1, the front and rear ends of the second joint 3 are respectively provided with a second front inclined tooth surface 3-1 and a second rear inclined tooth surface 3-2, and the front end of the third joint 4 is provided with a third front inclined tooth surface 4-1; the first back sloping tooth face 2-1 is engaged with the second front sloping tooth face 3-1, and the second back sloping tooth face 3-2 is engaged with the third front sloping tooth face 4-1; the rear end of the third joint 4 is connected with the front end of a transmission connector 5, and the rear end of the transmission connector 5 is connected with a driving shaft 6.
As shown in fig. 1, 2 and 3, a grinding head connecting end 7 is arranged at the front end of the first joint 2, a first bearing group 2-2 is sleeved at the middle rear part of the first joint 2 and fixed inside the arc section 1-1 of the protective pipe sleeve 1 through the first bearing group 2-2, and the grinding head connecting end 7 at the front end is exposed out of the front end of the arc section 1-1 of the protective pipe sleeve 1.
Depending on the grater, the grater connecting ends are threaded (as shown in fig. 9 and 10), multi-lobed (as shown in fig. 11) or push-type grater quick-connect mechanisms (as shown in fig. 12 to 15).
Further, the threaded end is cylindrical (as shown in fig. 9) or conical (as shown in fig. 10).
As shown in fig. 1 and 4, the pressing type grinding head quick connecting mechanism 7 comprises a circular hole groove 2-3 arranged at the front end of a first joint 2, a first spring 2-4, a telescopic pressing rod 2-5, a steel ball 2-6 and a locking screw 2-7, wherein a steel ball 2-6 exposing hole is arranged on the side wall of the circular hole groove 2-3, and an internal threaded hole 2-8 is arranged at the front end; the side wall of the middle section of the telescopic pressing rod 2-5 is provided with an inner concave ring groove 2-9, and the front end is provided with a pressing end 2-10; the steel balls 2-6 are assembled at the concave ring grooves 2-9 of the telescopic pressing rods 2-5, the first springs 2-4 and the telescopic pressing rods 2-5 assembled with the steel balls 2-6 are sequentially installed in the circular hole grooves 2-3, the locking screws 2-7 are provided with central through holes 2-11 and locked at the internal thread ports 2-8 at the end ends of the circular hole grooves 2-3, and the pressing ends 2-10 of the telescopic pressing rods 2-5 penetrate through the central through holes 2-11 of the locking screws 2-7.
As shown in fig. 5, the second joint 3 includes a telescopic hexagonal shaft 3-3, a second spring 3-4, a second front helical gear 3-5 and a second rear helical gear 3-6, the second front oblique tooth parts 3-5 and the second rear oblique tooth parts 3-6 are respectively provided with a second front hexagonal hole 3-7 and a second rear hexagonal hole 3-8, the telescopic hexagonal shaft 3-3 is provided with a limiting protrusion 3-9, the second spring 3-4 is installed on the telescopic hexagonal shaft 3-3 and is positioned at the rear side of the limiting protrusion 3-9, the front end of the telescopic hexagonal shaft 3-3 is inserted into the second front hexagonal hole 3-7, the rear end of the telescopic hexagonal shaft 3-3 penetrates through the second spring 3-4 and is inserted into the second rear hexagonal hole 3-8, and the rear end of the second spring 3-4 abuts against the front end face of the second rear inclined tooth part 3-6; the second front skewed tooth part 3-5 and the second rear skewed tooth part 3-6 are sleeved with a second bearing group 3-10 and are fixed inside the arc section 1-1 of the protective pipe sleeve 1 through the second bearing group 3-10.
As shown in fig. 6, the third joint 4 comprises a fixed hexagonal shaft 4-2, a third front helical gear 4-3 and a third rear helical gear 4-4, the third front helical gear 4-3 and the third rear helical gear 4-4 are respectively provided with a third front hexagonal hole 4-5 and a third rear hexagonal hole 4-6, and the front end and the rear end of the fixed hexagonal shaft 4-2 are respectively inserted into the third front hexagonal hole 4-5 and the third rear hexagonal hole 4-6; the third front oblique tooth piece 4-3 and the third rear oblique tooth piece 4-4 are sleeved with a third bearing group 4-7 and are fixed inside the arc section 1-1 of the protective pipe sleeve 1 through the third bearing group 4-7.
As shown in fig. 7, the transmission connector 5 comprises a front tube 5-1 and a hexagonal rear rod 5-2, the front end of the front tube 5-1 is provided with a hexagonal end 5-3 and is inserted into a third rear hexagonal hole 4-6, the rear end of the front tube 5-1 is provided with a hexagonal hole groove 5-4, a third spring 5-5 is arranged in the hexagonal hole groove 5-4, the hexagonal rear rod 5-2 is inserted into the hexagonal hole groove 5-4 and presses the third spring 5-5, and the rear end of the hexagonal rear rod 5-2 is connected with a driving shaft 6.
As shown in fig. 8 and 7, a hexagonal port 6-1 is arranged at the front end of the driving shaft 6, the rear end of the hexagonal rear rod 5-2 is butted, a rear end bearing 6-2 is sleeved on the driving shaft 6, and the driving shaft is fixed at the rear port of the protective pipe sleeve 1 through the rear end bearing 6-2.
As shown in figure 1, the protective pipe sleeve 1 comprises a main shell 1-3, an access opening 1-4 is formed in the side wall of the main shell 1-3, a sealing cover 1-5 is arranged at the access opening 1-4, and the sealing cover 1-5 is connected with the main shell 1-3 through screws 1-6.
The foregoing detailed description is given by way of example only, and is provided to better enable one skilled in the art to understand the patent, and is not intended to limit the scope of the patent; any equivalent alterations or modifications made according to the spirit of the disclosure of this patent are intended to be included in the scope of this patent.
Claims (10)
1. A polishing arm, comprising: the protective pipe comprises a protective pipe sleeve, wherein the protective pipe sleeve is provided with an arc section and a straight cylinder section, a first joint, a second joint and a third joint are arranged in the arc section of the protective pipe sleeve, and a transmission connector and a driving shaft are arranged in the straight cylinder section; the front end of the first joint is connected with the grinding head, the rear end of the first joint is provided with a first rear inclined tooth surface, the front end and the rear end of the second joint are respectively provided with a second front inclined tooth surface and a second rear inclined tooth surface, and the front end of the third joint is provided with a third front inclined tooth surface; the first back sloping tooth surface is meshed with the second front sloping tooth surface, and the second back sloping tooth surface is meshed with the third front sloping tooth surface; the rear end of the third joint is connected with the front end of the transmission connector, and the rear end of the transmission connector is connected with the driving shaft.
2. The polishing arm of claim 1, wherein: the grinding head connecting end of the front end of the first joint is exposed out of the front end of the arc section of the protective pipe sleeve.
3. The polishing arm of claim 2, wherein: the grinding head connecting end is a threaded connecting end, a multi-petal connecting end or a pressing type grinding head quick connecting mechanism.
4. The polishing arm of claim 3, wherein: the threaded end is cylindrical or conical.
5. The polishing arm of claim 3, wherein: the pressing type grinding head quick connecting mechanism comprises a circular hole groove, a first spring, a telescopic pressing rod, steel balls and a locking screw, wherein the circular hole groove is formed in the front end of a first joint; the side wall of the middle section of the telescopic pressing rod is provided with an inwards concave ring groove, and the front end of the telescopic pressing rod is provided with a pressing end; the steel ball is assembled in the concave ring groove of the telescopic pressing rod, the first spring and the telescopic pressing rod assembled with the steel ball are sequentially installed in the circular hole groove, the locking screw is provided with a central through hole and is locked in the internal thread opening at the end of the circular hole groove, and the pressing end of the telescopic pressing rod penetrates through the central through hole of the locking screw.
6. The polishing arm of claim 1, wherein: the second joint comprises a telescopic hexagonal shaft, a second spring, a second front inclined tooth piece and a second rear inclined tooth piece, wherein a second front hexagonal hole and a second rear hexagonal hole are respectively formed in the second front inclined tooth piece and the second rear inclined tooth piece; and the second front skewed tooth piece and the second rear skewed tooth piece are sleeved with a second bearing group and are fixed inside the arc section of the protective pipe sleeve through the second bearing group.
7. The polishing arm of claim 1, wherein: the third joint comprises a fixed hexagonal shaft, a third front helical gear and a third rear helical gear, wherein the third front helical gear and the third rear helical gear are respectively provided with a third front hexagonal hole and a third rear hexagonal hole, and the front end and the rear end of the fixed hexagonal shaft are respectively inserted into the third front hexagonal hole and the third rear hexagonal hole; and the third front skewed tooth piece and the third rear skewed tooth piece are sleeved with a third bearing group and are fixed inside the arc section of the protective pipe sleeve through the third bearing group.
8. The polishing arm of claim 1, wherein: the transmission connector comprises a front pipe and a hexagonal rear rod, a hexagonal end head is arranged at the front end of the front pipe, the front pipe is inserted into a third rear hexagonal hole, a hexagonal hole groove is formed in the rear end of the front pipe, a third spring is installed in the hexagonal hole groove, the hexagonal rear rod is inserted into the hexagonal hole groove and compresses the third spring, and the rear end of the hexagonal rear rod is connected with a driving shaft.
9. The polishing arm of claim 1, wherein: the front end of the driving shaft is provided with a hexagonal port which is in butt joint with the rear end of the hexagonal rear rod, and the driving shaft is sleeved with a rear end bearing and is fixed at the rear port of the protective pipe sleeve through the rear end bearing.
10. The polishing arm of claim 1, wherein: the protective pipe sleeve comprises a main shell, an access hole is formed in the side wall of the main shell, a sealing cover is arranged at the access hole, and the sealing cover is connected with the main shell through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921873218.2U CN210849706U (en) | 2019-11-03 | 2019-11-03 | Polishing arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921873218.2U CN210849706U (en) | 2019-11-03 | 2019-11-03 | Polishing arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210849706U true CN210849706U (en) | 2020-06-26 |
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ID=71297411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921873218.2U Active CN210849706U (en) | 2019-11-03 | 2019-11-03 | Polishing arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210849706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091630A (en) * | 2020-09-16 | 2020-12-18 | 中国航发贵州黎阳航空动力有限公司 | Barrel part hole polishing cutter |
-
2019
- 2019-11-03 CN CN201921873218.2U patent/CN210849706U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091630A (en) * | 2020-09-16 | 2020-12-18 | 中国航发贵州黎阳航空动力有限公司 | Barrel part hole polishing cutter |
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