CN113210681A - Chamfering device suitable for workpieces with different heights - Google Patents
Chamfering device suitable for workpieces with different heights Download PDFInfo
- Publication number
- CN113210681A CN113210681A CN202110412416.4A CN202110412416A CN113210681A CN 113210681 A CN113210681 A CN 113210681A CN 202110412416 A CN202110412416 A CN 202110412416A CN 113210681 A CN113210681 A CN 113210681A
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- telescopic shaft
- shell
- chamfering
- workpieces
- force application
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/10—Bits for countersinking
- B23B51/102—Back spot-facing or chamfering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a chamfering device suitable for workpieces with different heights, which comprises a shell and a chamfering drill bit, wherein a circular conical hole and an inner shrinking space are arranged in the shell, the inner shrinking space is positioned above the circular conical hole, the lower end of the shell is provided with a port, the chamfering drill bit is connected with the lower end of a telescopic shaft, the telescopic shaft is arranged in the shell, a first bearing is arranged between the telescopic shaft and the shell, the telescopic shaft extends out of the port and is connected with the chamfering drill bit, a cone is arranged on the telescopic shaft and is matched with the circular conical hole, and the telescopic shaft is provided with an extending force application spring. When chamfering is carried out on holes in workpieces with different heights, different workpieces in the same batch are placed at positions below the chamfering device, and the effect that the chamfering for processing the holes in the workpieces can be uniform can be achieved; the influence of errors in the high-speed processing of the workpieces in the same batch is avoided, and the influence of deviation of the distance between each workpiece and the chamfering device is avoided.
Description
Technical Field
The invention relates to a chamfering device, in particular to a chamfering device suitable for workpieces with different heights.
Background
The chamfering device is used for chamfering holes in the workpiece. For example, in the field of valves, a connecting hole on a connecting flange on a valve body needs to be chamfered. For example, in other mechanical fields, the holes in the plate need to be chamfered, and in other fields, the holes are also frequently chamfered.
In the chamfering process, a chamfering bit of the chamfering apparatus is used for chamfering a hole in a workpiece. However, due to various problems such as machining accuracy, the thickness (i.e., height) of the same batch of workpieces varies, and although the materials of the same batch of workpieces are the same, the distances between the chamfering bit and the holes to be machined on different workpieces or between the chamfering bit and the holes to be machined on different workpieces are not the same. The chamfering device is preset (set as inherent parameters) in the lifting distance (namely lifting stroke) and the rotating speed of equipment such as a numerical control drill carriage, and the set values are kept when the same batch of processing is carried out, so that the setting cannot be input again every time. If the chamfering drill bit works according to the preset lifting distance, the chamfering effect on the holes is poor, and the chamfering depth of each hole is different and uneven.
Disclosure of Invention
In view of the technical problems in the background art, the technical problems solved by the invention are to provide a chamfering device suitable for workpieces with different heights, which is brand-new in structural design, and realizes the switching of a cone and a circular taper hole from a state of keeping contact friction and a state of separating the cone and the circular taper hole in the using process by the cooperation of an extending force application spring; when the hole is chamfered, the chamfer depth is uniform.
In order to solve the technical problems, the invention adopts the following technical scheme: be suitable for chamfer device of not co-altitude work piece, including casing and chamfer drill bit, its characterized in that: be equipped with circular taper hole and the interior space that contracts in the casing, the interior space that contracts is located the top of circular taper hole, and the lower extreme of casing is the port, and the lower extreme at the telescopic shaft is connected to the chamfer drill bit, and the telescopic shaft configuration is equipped with first bearing in the casing and between telescopic shaft and the casing, and the telescopic shaft is followed stretch out in the port and be connected with the chamfer drill bit, has the cone on the telescopic shaft, the cone with circular taper hole phase-match, the telescopic shaft is furnished with and stretches out force application spring.
Wherein the telescopic shaft is connected in the shell, and the telescopic shaft can extend out and retract relative to the shell. When the chamfering device is used, the chamfering device is installed on equipment such as a numerical control drill carriage, the shell is rotated and descended, the telescopic shaft keeps an extending state under the action of an extending force application spring, the cone is kept in contact with the circular conical hole, and the shell can be rotated and descended to drive the telescopic shaft to synchronously rotate and synchronously descend so as to drive a chamfering drill bit on the telescopic shaft to rotate and descend to chamfer holes; after the certain degree of depth is arrived in the chamfer, the area increase of chamfer, the frictional resistance grow that the chamfer drill bit received, the chamfer drill bit will unable the rotation, the telescopic shaft can't continue to descend, the casing will take place relative position with the telescopic shaft and change, the casing can continue to descend promptly and target in place, and the telescopic shaft will unable the decline, stretch out application of force spring and will deform, cone and circular taper hole will separate from top to bottom, at this moment, just to the chamfer of hole processing.
The chamfering device suitable for workpieces with different heights has the advantages that when the chamfering device is used for chamfering holes in the workpieces with different heights (namely thicknesses), different workpieces in the same batch are placed at the position below the chamfering device, even if the distance between each workpiece and the chamfering device deviates, the chamfering device can achieve the effect that the chamfering for the holes in each workpiece can be uniform even if the chamfering device keeps set values in the lifting distance and the rotating speed in equipment such as a numerical control drill carriage; the influence of errors in the height (namely thickness) processing of the workpieces in the same batch is avoided, and the influence of deviation of the distance between each workpiece and the chamfering device is avoided.
The following optimization or supplementary explanation can be performed on the technical scheme.
For example, the extension force application spring is arranged between the shell and the telescopic shaft, and a second bearing is further arranged between the extension force application spring and the shell and/or the telescopic shaft. When the shell and the telescopic shaft rotate relatively, the extending force application spring can rotate relatively through the second bearing, the extending force application spring operates more stably, the influence of relative rotation between the shell and the telescopic shaft is avoided, and the structure is more reasonable.
According to the optimized structure, the extension force application spring is positioned in the retraction space, the extension force application spring is sleeved on the telescopic shaft, the lower end of the extension force application spring is connected with the telescopic shaft, the upper end of the extension force application spring is connected with the gasket, and the second bearing is arranged between the gasket and the shell. In addition, the extension force application spring can be pressed at the upper end of the cone of the telescopic shaft, so that the structure is simplified and reasonable, and the operation is stable.
For another example, the housing includes an upper housing and a lower housing, the upper housing is connected to the lower housing, the circular taper hole and the port are located on the lower housing, an inward-contracting space is defined between the upper housing and the lower housing, the upper housing and the lower housing are respectively provided with a mounting hole, and the first bearing is disposed in the mounting hole. The shell structure is more reasonable, and the installation and the processing of the shell are more convenient. In addition, the circular taper hole and the internal structure in the shell are convenient to process, and the whole chamfering device is more convenient to assemble.
The chamfering drill bit is provided with a connecting shaft, the telescopic shaft is provided with a shaft hole, and the connecting shaft of the chamfering drill bit is arranged in the shaft hole of the telescopic shaft; the chamfering drill bit can be disassembled and assembled, different chamfering drill bits are convenient to replace, disassembly and assembly are convenient to maintain, and the requirement of size chamfering is met. A wedge-shaped opening is formed in the side wall of the connecting shaft, a set screw is arranged on the side wall of the shaft hole of the telescopic shaft, and the set screw is arranged corresponding to the wedge-shaped opening; withstand the connecting axle through holding screw, make things convenient for fixed connection, adopt the wedge mouth then can connect when fixed more firm, prevent that the rotation of chamfer drill bit from with the drop effect better.
The first bearing can be a needle bearing, and the second bearing can be a plane bearing.
Thus, the present invention provides substantial features and advances over the prior art.
Drawings
The following describes details and operational principles of embodiments and examples of the present invention with reference to the drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the telescopic shaft shown in fig. 1 retracted inward relative to the housing.
In the figure: the drilling tool comprises a shell body 1, a chamfering drill bit 2, a circular taper hole 3, a shrinking-in space 4, a port 5, a telescopic shaft 6, a first bearing 8, a cone 9, a force application spring 10, a second bearing 11, a washer 12, an upper shell 13, a lower shell 14, a connecting shaft 16, a shaft hole 17, a wedge-shaped opening 18 and a set screw 19.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to the drawings, the embodiment of the invention is applicable to chamfering devices for workpieces with different heights, and comprises a shell 1 and a chamfering drill 2. A circular taper hole 3 and an inward contraction space 4 are arranged in the shell 1, the inward contraction space 4 is located above the circular taper hole 3, and a port 5 is arranged at the lower end of the shell 1. The chamfering drill bit 2 is connected to the lower end of the telescopic shaft 6, the telescopic shaft 6 is arranged in the shell 1, a first bearing 8 is arranged between the telescopic shaft 6 and the shell 1, and the telescopic shaft 6 extends out of the port 5 to be connected with the chamfering drill bit 2. The telescopic shaft 6 can extend and retract (axially move) relative to the housing 1, and the telescopic shaft 6 can also rotate relative to the housing 1; the first bearing 8 supports the telescopic shaft 6 to rotate and axially move relative to the shell 1, so that the operation is smoother and more stable. The telescopic shaft 6 is provided with a cone 9, the cone 9 is matched with the circular taper hole 3, namely, the conical surface of the circular taper hole is correspondingly matched with the conical surface of the cone, the cone is a circular truncated cone in the figure, and the circular taper hole is a corresponding circular truncated cone. The space 4 that contracts inwards is located circular taper hole 3's top, and when flexible axle 6 retracted, the space 4 that contracts inwards holds when supplying the cone 9 on flexible axle 6 to contract the removal. The telescopic shaft 6 is provided with an extension urging spring 10, and the elastic force of the extension urging spring 10 applies an outward pushing force to the telescopic shaft 6 so as to cooperate with the telescopic shaft 6 to extend outward toward the port 5 at the lower end of the housing 1.
Wherein the telescopic shaft 6 is connected within the housing 1, and the telescopic shaft 6 is extendable and retractable with respect to the housing 1. When the chamfering device is used, the chamfering device is installed on equipment such as a numerical control drill carriage, the shell is rotated and lifted, when the shell rotates and descends, the telescopic shaft keeps in an extending state under the action of an extending force application spring, the cone 9 and the circular conical hole 3 keep in contact interaction, the cone and the conical surface of the circular conical hole are in contact friction and are in transmission with each other, at the moment, the shell 1 rotates and descends to drive the telescopic shaft 6 to synchronously rotate and descend, and therefore the chamfering drill bit 2 on the telescopic shaft can be driven to rotate and descend so as to chamfer holes; after the chamfer to certain degree of depth, the area increase of chamfer, the resistance grow that chamfer drill bit 2 received, until the chamfer drill bit will unable the rotation, relative position change will take place for casing 1 and telescopic shaft 6, and the casing can continue to descend until the position of settlement promptly, and the telescopic shaft will unable the decline, stretches out application of force spring 10 and will deform, and cone 9 will separate from top to bottom with circular taper hole 3, and at this moment, just to the chamfer of hole processing. Then the shell rises to return, the force application spring extends to reset, the cone on the telescopic shaft is contacted with the circular cone hole again, and the next work is waited.
The chamfering device suitable for workpieces with different heights has the advantages that when the chamfering device is used for chamfering holes in the workpieces with different heights (namely thicknesses), different workpieces in the same batch are placed at the position below the chamfering device, even if the heights of the workpieces are different, the distance between each workpiece (such as a flat plate) and the chamfering device is deviated, and even if the chamfering device keeps set values in the lifting distance and the rotating speed of equipment such as a numerical control drill carriage, the chamfering device can achieve the uniform effect of chamfering the holes in the workpieces; the influence of errors in the height (namely thickness) processing of the workpieces in the same batch is avoided, and the influence of deviation of the distance between each workpiece and the chamfering device is avoided.
The following optimization or further explanation can be carried out on the basis of the embodiment.
For example, the extension urging spring 10 is provided between the housing 1 and the telescopic shaft 6, and the second bearing 11 is further provided between the extension urging spring 10 and the housing and/or the telescopic shaft. When the shell 1 and the telescopic shaft 6 rotate relatively, the extending force application spring 10 can also rotate relatively through the second bearing 11, the extending force application spring is more stable in operation, the influence of relative rotation between the shell and the telescopic shaft is avoided, and the structure is more reasonable.
According to the following optimized structure, the extension force application spring 10 is positioned in the retraction space 4, the extension force application spring 10 is sleeved on the telescopic shaft 6, the lower end of the extension force application spring 10 is connected with the telescopic shaft 6, the upper end of the extension force application spring 10 is connected with the gasket 12, and the corresponding second bearing 11 is arranged between the gasket 12 and the shell 1. In addition, the extension force application spring 10 can be pressed at the upper end of the cone 9 of the telescopic shaft 6, so that the structure is simplified and reasonable, the assembly is convenient, and the operation is stable. In this preferred structure, the extension urging spring 10 is a compression spring. The washer is an adjusting pad which can ensure that the extension force application spring 10 is stably connected, and the elasticity of the extension force application spring 10 can be adjusted by replacing different thicknesses or quantity specifications of the washer,
for another example, the housing 1 includes an upper shell 13 and a lower shell 14, and the upper shell is connected to the lower shell (e.g., by welding, screwing, fastening, etc.). The circular taper hole 3 and the port 5 are located on the lower shell 14, a retraction space 4 is defined between the upper shell 13 and the lower shell 14, mounting holes are respectively formed in the upper shell 13 and the lower shell 14, and the first bearing 8 is arranged in the mounting holes. The shell structure is more reasonable, and the installation and the processing of the shell are more convenient. In addition, the circular taper hole and the internal structure in the shell are convenient to process, and the whole chamfering device is more convenient to assemble.
The chamfering bit 2 and the telescopic shaft 6 can be integrally arranged or can be detachably connected in a split mode. For example, the disassembly and assembly mode is optimized, the chamfering bit 2 is provided with a connecting shaft 16, the telescopic shaft 6 is provided with a shaft hole 17, and the connecting shaft 16 of the chamfering bit is arranged in the shaft hole 17 of the telescopic shaft; the chamfering drill bit can be disassembled and assembled, different chamfering drill bits are convenient to replace, disassembly and assembly are convenient to maintain, and the requirement of size chamfering is met. In addition, a wedge-shaped opening 18 (two inclined planes in the figure form a V-shaped wedge-shaped opening) is arranged on the side wall of the connecting shaft 16, a set screw 19 is arranged on the side wall of the shaft hole 17 of the telescopic shaft, and the set screw is arranged corresponding to the wedge-shaped opening; the connecting shaft 16 is supported through the set screw 19, so that the fixed connection is facilitated, the wedge-shaped opening is adopted, the connection and the fixation are firmer, and the chamfering drill bit is prevented from rotating and falling off better.
Wherein, first bearing 8 is used for supporting the telescopic shaft and rotates and make things convenient for telescopic shaft axial displacement to stretch out and the indentation (axial telescopic action promptly) relative to the casing, and first bearing kind is more, can adopt needle bearing for first bearing, and the telescopic shaft rotates and the axial is stretched out and the indentation is more smooth, more stable relative to the casing. The second bearing 11 supports the extending force application spring to rotate relative to the shell and/or the telescopic shaft, the types of the second bearings are more, and the second bearings can be plane bearings.
The foregoing is a preferred embodiment of the present invention, and it should be noted that the scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the scope of the invention as set forth in the claims.
Claims (8)
1. Be suitable for chamfer device of not co-altitude work piece, including casing (1) and chamfer drill bit (2), its characterized in that:
a circular taper hole (3) and an inner contraction space (4) are arranged in the shell (1), the inner contraction space (4) is positioned above the circular taper hole (3), the lower end of the shell (1) is provided with a port (5),
the chamfering drill bit (2) is connected with the lower end of the telescopic shaft (6),
the telescopic shaft (6) is arranged in the shell (1), a first bearing (8) is arranged between the telescopic shaft (6) and the shell (1), the telescopic shaft (6) extends out of the port (5) to be connected with the chamfering drill bit (2), a cone (9) is arranged on the telescopic shaft (6), the cone (9) is matched with the circular taper hole (3), and the telescopic shaft (6) is provided with an extending force application spring (10).
2. The chamfering apparatus for workpieces of different heights as set forth in claim 1, wherein: the extension force application spring (10) is arranged between the shell (1) and the telescopic shaft (6), and a second bearing (11) is arranged between the extension force application spring and the shell and/or the telescopic shaft.
3. The chamfering apparatus for workpieces of different heights as set forth in claim 1, wherein: the extension force application spring (10) is located in the retraction space (4), the extension force application spring (10) is sleeved on the telescopic shaft (6), the lower end of the extension force application spring (10) is connected with the telescopic shaft (6), the upper end of the extension force application spring (10) is connected with a gasket (12), and a second bearing (11) is arranged between the gasket (12) and the shell (1).
4. The chamfering apparatus for workpieces of different heights as set forth in claim 3, wherein: the extension force application spring (10) is pressed at the upper end of the cone (9) of the telescopic shaft.
5. The chamfering apparatus for workpieces of different heights as set forth in claim 1, wherein: the shell (1) comprises an upper shell (13) and a lower shell (14), the upper shell is connected with the lower shell,
the round taper hole (3) and the port (5) are positioned on the lower shell (14),
an inner contraction space (4) is enclosed between the upper shell (13) and the lower shell (14),
the upper shell (13) and the lower shell (14) are respectively provided with a mounting hole, and the first bearing (8) is arranged in the mounting holes.
6. The chamfering apparatus for workpieces of different heights as set forth in claim 1, wherein: the chamfering drill bit (2) is provided with a connecting shaft (16), the telescopic shaft (6) is provided with a shaft hole (17), and the connecting shaft (16) of the chamfering drill bit is arranged in the shaft hole (17) of the telescopic shaft; the side wall of the connecting shaft (16) is provided with a wedge-shaped opening (18), the side wall of the shaft hole (17) of the telescopic shaft is provided with a set screw (19), and the set screw is arranged corresponding to the wedge-shaped opening.
7. The chamfering apparatus for workpieces with different heights as set forth in claim 2, 3 or 4, wherein: the first bearing adopts a needle bearing, and the second bearing adopts a plane bearing.
8. The chamfering apparatus for workpieces of different heights as set forth in claim 1, wherein: the circular taper hole (3) is positioned below the cone (9) and is in an inverted cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412416.4A CN113210681A (en) | 2021-04-16 | 2021-04-16 | Chamfering device suitable for workpieces with different heights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110412416.4A CN113210681A (en) | 2021-04-16 | 2021-04-16 | Chamfering device suitable for workpieces with different heights |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113210681A true CN113210681A (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110412416.4A Pending CN113210681A (en) | 2021-04-16 | 2021-04-16 | Chamfering device suitable for workpieces with different heights |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113210681A (en) |
Citations (9)
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|---|---|---|---|---|
| CN101804473A (en) * | 2010-04-15 | 2010-08-18 | 吉林大学 | Adjustable-depth counter boring device |
| CN101966601A (en) * | 2010-07-30 | 2011-02-09 | 天润曲轴股份有限公司 | Template device for drilling holes on crankshaft flange end face |
| CN101992304A (en) * | 2009-08-11 | 2011-03-30 | 上海东方泵业(集团)有限公司 | Special channeling tool in hole |
| CN103143754A (en) * | 2011-12-06 | 2013-06-12 | 陶晓明 | Clamping head of milling machine |
| CN106166635A (en) * | 2015-05-19 | 2016-11-30 | 株式会社韩亚微技术 | The metallic plate of impact is prevented when screw tap secure private dynamic torque tool and generation torsion thereof |
| CN205816893U (en) * | 2016-06-30 | 2016-12-21 | 南通航运职业技术学院 | A kind of drilling tool of easily more bit change |
| CN206326167U (en) * | 2016-12-19 | 2017-07-14 | 中车长春轨道客车股份有限公司 | The automatic limit device of nonstandard counterbit |
| CN111097978A (en) * | 2019-12-26 | 2020-05-05 | 陕西宝成航空仪表有限责任公司 | Thread tapping torsion overload protection clamp |
| CN212600206U (en) * | 2020-07-02 | 2021-02-26 | 东北大学秦皇岛分校 | Electric automatization drilling equipment |
-
2021
- 2021-04-16 CN CN202110412416.4A patent/CN113210681A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992304A (en) * | 2009-08-11 | 2011-03-30 | 上海东方泵业(集团)有限公司 | Special channeling tool in hole |
| CN101804473A (en) * | 2010-04-15 | 2010-08-18 | 吉林大学 | Adjustable-depth counter boring device |
| CN101966601A (en) * | 2010-07-30 | 2011-02-09 | 天润曲轴股份有限公司 | Template device for drilling holes on crankshaft flange end face |
| CN103143754A (en) * | 2011-12-06 | 2013-06-12 | 陶晓明 | Clamping head of milling machine |
| CN106166635A (en) * | 2015-05-19 | 2016-11-30 | 株式会社韩亚微技术 | The metallic plate of impact is prevented when screw tap secure private dynamic torque tool and generation torsion thereof |
| CN205816893U (en) * | 2016-06-30 | 2016-12-21 | 南通航运职业技术学院 | A kind of drilling tool of easily more bit change |
| CN206326167U (en) * | 2016-12-19 | 2017-07-14 | 中车长春轨道客车股份有限公司 | The automatic limit device of nonstandard counterbit |
| CN111097978A (en) * | 2019-12-26 | 2020-05-05 | 陕西宝成航空仪表有限责任公司 | Thread tapping torsion overload protection clamp |
| CN212600206U (en) * | 2020-07-02 | 2021-02-26 | 东北大学秦皇岛分校 | Electric automatization drilling equipment |
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Application publication date: 20210806 |