CN115255982B - Special fixture for processing arc surface - Google Patents
Special fixture for processing arc surface Download PDFInfo
- Publication number
- CN115255982B CN115255982B CN202210839269.3A CN202210839269A CN115255982B CN 115255982 B CN115255982 B CN 115255982B CN 202210839269 A CN202210839269 A CN 202210839269A CN 115255982 B CN115255982 B CN 115255982B
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- Prior art keywords
- base
- arc surface
- fixed
- special fixture
- movable
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- 238000003754 machining Methods 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims 1
- 238000003801 milling Methods 0.000 abstract description 17
- 238000005520 cutting process Methods 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/12—Trimming or finishing edges, e.g. deburring welded corners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Milling Processes (AREA)
Abstract
The invention relates to the technical field of auxiliary devices of manual milling machines, in particular to a special fixture for machining an arc surface, which is used for solving the problem that a manual machine tool is difficult to machine the arc surface. The invention provides a special fixture for processing an arc surface, which comprises a fixed seat, a rotating base, a fixed side plate, a movable side plate and a first driving device, wherein the fixed side plate is arranged on the fixed seat; the rotary base is arranged on the fixed seat and is rotatably connected with the fixed seat through the first driving device; the first driving device comprises a hand wheel and a speed reducing device; the fixed side plates are perpendicular to the movable side plates, and the movable side plates are connected with the rotary base through adjusting screws.
Description
Technical Field
The invention relates to the technical field of auxiliary devices of manual milling machines, in particular to a special fixture for machining an arc surface.
Background
The manual milling machine has simple structure and low use and maintenance cost, and is still widely used in the processing of parts with simple structure and large batch, such as a lifting table milling machine, a universal milling machine and the like. Manual milling machines are commonly used to machine end surfaces and grooves, which are difficult to machine for arcuate surfaces.
In the actual production process, in order to process the arc surface, a numerical control milling machine or a processing center is generally adopted at present, and for the processing of parts with simple structures, the processing cost is greatly increased. Although the manual milling machine can roughly process simple fillets, an operator is required to frequently clamp and disassemble the fillets and adjust the angles, so that the precision is poor, and the processing efficiency is greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a special fixture for processing an arc surface, which can enable a manual milling machine to realize the fillet processing of simple parts, in particular to the fillets of rectangular parts, and provides higher processing efficiency.
In order to achieve the above purpose, the technical scheme of the invention is to provide a special fixture for processing an arc surface, which comprises a fixed seat, a rotating base, a fixed side plate, a movable side plate and a first driving device;
the rotary base is arranged on the fixed seat and is rotatably connected with the fixed seat through the first driving device;
the first driving device comprises a hand wheel and a speed reducing device;
the fixed side plates are perpendicular to the movable side plates, and the movable side plates are connected with the rotary base through adjusting screws.
The parts can be clamped through the fixed side plates and the movable side plates, the rotating base and the parts can be rotated together through the hand wheel via the first driving device, and then the arc surface is cut by the milling cutter.
The preferable technical scheme is that the speed reducing device is a worm and gear mechanism. The worm and gear mechanism has large reduction ratio, and is convenient for precisely controlling the rotating speed.
The preferable technical scheme is that a feed slot is arranged between the two fixed side plates, the rotating base is provided with a withdrawal slot, and the withdrawal slot is positioned below the feed slot. The milling cutter cuts in the feed slot between the two fixed side plates, and can be pushed out from the withdrawal slot after one-time cutting is completed, so that the clamp is prevented from striking the cutter.
Further preferable technical scheme is that the fixing seat is provided with a limit stop. The limit stop can control the rotation angle of the rotating base, and prevent the fixed side plate from knocking against the knife due to excessive rotation.
The preferable technical scheme is that the device further comprises a movable base, the movable base is in linear sliding connection with the fixed base, the rotary base is arranged on the movable base, and the movable base is connected with the fixed base through a second driving device. The movable base can move linearly to increase the cutting depth, and a fixed amount of cutting can be performed every time of feeding.
Further preferable technical scheme is that the second driving device comprises a screw and a sliding rail, wherein the screw and the sliding rail are arranged on the movable base, and the fixing seat is in threaded connection with the screw and is in sliding connection with the sliding rail. The linear motion can be more accurate through the screw drive moving base.
Further preferable technical scheme is that the speed reducing device is a worm and gear mechanism, and the worm and the screw rod are connected through a transmission device. The worm and the screw rod synchronously rotate, and the rotating base and the moving base can be controlled through controlling the hand wheel.
Further preferred embodiments also provide that the transmission is a sprocket transmission or a gear transmission. The transmission mode of the chain wheel or the gear can lead the worm to be arranged in parallel with the lead screw, so that the structure is simpler.
Further preferable technical scheme is that a one-way clutch is arranged between the worm and the screw rod. The first driving device can control the rotating base to rotate in the forward and backward directions, but the moving base can only move forwards, so that the movement of the screw rod is cut off through the single clutch when the rotating base rotates reversely. In addition, when the rotating base rotates while moving, the arc surface generated by cutting is a curved surface with changed curvature, and when the screw rod stops rotating, the curved surface can be revised again into the arc surface when the rotating base reversely rotates.
The invention has the advantages and beneficial effects that:
1. the device is convenient to clamp, and the rotating base can be rotated through the operation of the hand wheel, and the arc surface is cut to be used as a round angle.
2. The moving base can complete the movement of the part, and when the arc surface can not be cut by one cutter, the cutting of the arc surface can be gradually completed by feeding for multiple times.
3. The rotation and the movement of the parts can be realized through a hand wheel, and the operation is simple and convenient.
4. The one-way clutch can realize forward and reverse rotation of the rotating base without affecting linear motion of the moving base, and ensures that the curvature of the cut arc surface is stable.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic top plan view of the swivel base;
the device comprises a 1-fixed seat, a 2-rotating seat, a 3-movable seat, a 11-limit stop, a 21-fixed side plate, a 22-movable side plate, a 23-hand wheel, a 24-worm wheel, a 25-worm, a 26-feed slot, a 27-withdrawal slot, a 28-adjusting screw, a 31-lead screw, a 32-slide rail, a 33-transmission device and a 34-one-way clutch.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1 and 2, the invention relates to a special fixture for processing arc surfaces, which comprises a fixed seat 1, a rotating base 2, a fixed side plate 21, a movable side plate 22 and a first driving device; the rotary base 2 is arranged on the fixed seat 1 and is rotatably connected with the fixed seat 1 through a first driving device; the first driving device comprises a hand wheel 23 and a speed reducing device; the reduction gear includes a worm wheel 24 and a worm 25.
The fixed side plates 21 and the movable side plates 22 are two, are vertically arranged on the rotary base 2, and the two fixed side plates 21 are mutually vertical, each fixed side plate 21 is respectively vertical to one movable side plate 22, and the movable side plate 22 is connected with the rotary base 2 through an adjusting screw 28. The adjusting screw 28 is in threaded connection with the rotating base 2 and is in rotary connection with the movable side plate 22, the movable side plate 22 is also in sliding track connection with the rotating base 2, when the adjusting screw 28 is rotated, the movable side plate 22 can move along a straight line, and the clamping of parts is realized by matching with the opposite fixed side plate 21.
A clearance is reserved between the two fixed side plates 21 to form a feed slot 26, the rotating base 2 is provided with a withdrawal slot 27, and the withdrawal slot 27 is positioned below the feed slot 26. The holder 1 is also provided with a limit stop 11.
The invention also comprises a movable base 3, wherein the movable base 3 is in linear sliding connection with the fixed base 1, the rotary base 2 is arranged on the movable base 3, and the movable base 3 is connected with the fixed base 1 through a second driving device. The second driving device comprises a screw rod 31 and a sliding rail 32, the screw rod 31 and the sliding rail 32 are arranged on the movable base 3, the movable base 3 is rotationally connected with the screw rod 31 and fixedly connected with the sliding rail 32, and the fixing seat 1 is in threaded connection with the screw rod 31 and is in sliding connection with the sliding rail 32. When the screw rod rotates, the screw rod, the sliding rail and the movable base 3 move along a straight line together.
The worm 25 is connected with the screw 31 through a transmission device 33. The transmission 33 is a sprocket and chain configuration. A one-way clutch 34 is provided between the worm 25 and the screw 31.
The working mode of the invention is as follows:
the invention is mainly aimed at processing round corners of rectangular parts, and the clamp needs to be placed on a workbench of an existing lifting table milling machine or a universal milling machine and fixed. The moving side plate 22 is moved away by the adjusting screw 28 before processing, the part is placed on the rotating base 2, and then the moving side plate 22 is used for clamping the part. At this time, a corner of the part to be machined is located at the feed slot 26 and the relief slot 27.
After the milling cutter is adjusted to a proper position, the hand wheel 23 is rotated, the hand wheel 23 drives the worm 25 to rotate, the worm 25 drives the worm wheel 24 to rotate, and the worm wheel 24 is fixedly connected with the rotating base 2, so that the rotating base 2 can rotate along with the hand wheel 23, a part stretches out of a corner in the feed groove 26 and can be cut while rotating to finish the processing of a round corner, the milling cutter works in the feed groove 26 when cutting, and the fixed side plate 21 cannot interfere the milling cutter. The milling cutter may be withdrawn from the relief groove 27 after the machining is completed, or returned in the feed direction.
The round angle that part needs to be processed is great, can't accomplish the processing of arc surface through a sword alone, needs reciprocal many times. The hand wheel 23 can drive the screw rod 31 to rotate through the transmission device 33, so that the movable base 3 is driven to linearly move. When the hand wheel 23 rotates forward, the rotating base 2 drives the parts to rotate and moves linearly through the moving base 3, after one-time cutting is completed, the hand wheel 23 rotates reversely, at the moment, the one-way clutch 34 can cut off the power input of the screw rod 31, the moving base 3 does not move any more, the rotating base 2 rotates reversely, resetting is completed, the next knife is cut, and the arc surface can be corrected once in the resetting process.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (6)
1. The special fixture for processing the arc surface is characterized by comprising a fixed seat, a rotating base, a fixed side plate, a movable side plate and a first driving device;
the rotary base is arranged on the fixed seat and is rotatably connected with the fixed seat through the first driving device;
the first driving device comprises a hand wheel and a speed reducing device;
the two fixed side plates and the two movable side plates are vertically arranged on the rotating base, the two fixed side plates are mutually vertical, each fixed side plate is respectively vertical to one movable side plate, and the movable side plates are connected with the rotating base through adjusting screws;
the movable base is in linear sliding connection with the fixed base, the rotary base is arranged on the movable base, and the movable base is connected with the fixed base through a second driving device;
the second driving device comprises a screw rod and a sliding rail, the screw rod and the sliding rail are arranged on the movable base, and the fixed seat is in threaded connection with the screw rod and is in sliding connection with the sliding rail;
the speed reducer is a worm and gear mechanism, and the worm is connected with the screw rod through a transmission device.
2. The special fixture for machining an arc surface according to claim 1, wherein the speed reducing device is a worm gear mechanism.
3. The special fixture for machining an arc surface according to claim 1, wherein a feed slot is arranged between the two fixed side plates, and the rotating base is provided with a withdrawal slot, and the withdrawal slot is positioned below the feed slot.
4. A special fixture for machining an arc surface according to claim 3, wherein the fixing base is provided with a limit stop.
5. The special fixture for machining an arc surface according to claim 1, wherein the transmission device is a sprocket transmission device or a gear transmission device.
6. The special fixture for machining an arc surface of claim 5, wherein a one-way clutch is arranged between the worm and the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210839269.3A CN115255982B (en) | 2022-07-18 | 2022-07-18 | Special fixture for processing arc surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210839269.3A CN115255982B (en) | 2022-07-18 | 2022-07-18 | Special fixture for processing arc surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115255982A CN115255982A (en) | 2022-11-01 |
| CN115255982B true CN115255982B (en) | 2023-12-26 |
Family
ID=83766310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210839269.3A Active CN115255982B (en) | 2022-07-18 | 2022-07-18 | Special fixture for processing arc surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115255982B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07329003A (en) * | 1994-06-03 | 1995-12-19 | Nakao Tekko:Kk | Corner circular arc processing machine |
| CN205816902U (en) * | 2016-05-27 | 2016-12-21 | 台州威德隆机械有限公司 | A kind of milling circular arc special plane |
| CN207495018U (en) * | 2017-11-13 | 2018-06-15 | 重庆市江津区长风精密加工有限责任公司 | A kind of milling arc surface fixture |
| WO2019174346A1 (en) * | 2018-03-12 | 2019-09-19 | 苏州东方模具科技股份有限公司 | Glass mold engraving and milling fixture for use with machining center |
| CN210307507U (en) * | 2019-08-02 | 2020-04-14 | 捷行机械工程（深圳）有限公司 | A manual jig for processing |
| CN212330408U (en) * | 2020-06-08 | 2021-01-12 | 东莞市华航新马金属有限公司 | Cutting clamp based on high-precision numerical control lathe |
| CN213225207U (en) * | 2020-09-23 | 2021-05-18 | 贵州迪宝尔科技有限公司 | Milling machine modular fixture with multi-axial movement |
| CN216829675U (en) * | 2022-01-14 | 2022-06-28 | 上海赞术科技有限公司 | Arc machining clamp and lathe |
-
2022
- 2022-07-18 CN CN202210839269.3A patent/CN115255982B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07329003A (en) * | 1994-06-03 | 1995-12-19 | Nakao Tekko:Kk | Corner circular arc processing machine |
| CN205816902U (en) * | 2016-05-27 | 2016-12-21 | 台州威德隆机械有限公司 | A kind of milling circular arc special plane |
| CN207495018U (en) * | 2017-11-13 | 2018-06-15 | 重庆市江津区长风精密加工有限责任公司 | A kind of milling arc surface fixture |
| WO2019174346A1 (en) * | 2018-03-12 | 2019-09-19 | 苏州东方模具科技股份有限公司 | Glass mold engraving and milling fixture for use with machining center |
| CN210307507U (en) * | 2019-08-02 | 2020-04-14 | 捷行机械工程（深圳）有限公司 | A manual jig for processing |
| CN212330408U (en) * | 2020-06-08 | 2021-01-12 | 东莞市华航新马金属有限公司 | Cutting clamp based on high-precision numerical control lathe |
| CN213225207U (en) * | 2020-09-23 | 2021-05-18 | 贵州迪宝尔科技有限公司 | Milling machine modular fixture with multi-axial movement |
| CN216829675U (en) * | 2022-01-14 | 2022-06-28 | 上海赞术科技有限公司 | Arc machining clamp and lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115255982A (en) | 2022-11-01 |
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