CN109396573A - A kind of screw rod external screw thread grinding attachment - Google Patents
A kind of screw rod external screw thread grinding attachment Download PDFInfo
- Publication number
- CN109396573A CN109396573A CN201710709485.5A CN201710709485A CN109396573A CN 109396573 A CN109396573 A CN 109396573A CN 201710709485 A CN201710709485 A CN 201710709485A CN 109396573 A CN109396573 A CN 109396573A
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- China
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- motor
- workpiece
- grinding wheel
- screw rod
- bottom plate
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- 239000007787 solid Substances 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/36—Thread cutting; Automatic machines specially designed therefor by grinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
Abstract
The invention discloses a kind of screw rod external screw thread grinding attachment, including bracket, the bracket includes bottom plate and lifting arm, the lower end of the lifting arm is provided with grinding wheel, first motor is fixedly installed in the cavity of lifting arm, the output shaft and grinding wheel of first motor are connected, and first motor drives grinding wheel rotation；Lead screw and the second motor are provided on bottom plate, grinding wheel axis tilts a lead angle with respect to the axis of lead screw, is vertically arranged with third motor, two the first fixed plates, two the second fixed plates and two groups of fixtures on slide plate.By the way that fixture is arranged, to playing a supporting role in the middle part of workpiece, upper gripper jaw, lower clamping jaw arc surface play position-limiting action to workpiece, then in grinding engineering, workpiece will not shake, and enhance stable shape, improve machining accuracy and yield rate.
Description
Technical field
The present invention relates to a kind of screw rod external screw thread grinding attachments.
Background technique
Lead screw external screw thread uses machining in the prior art, and machining accuracy is low, and processing technology is complicated, silk then occurs
Thick stick external screw thread grinding attachment, existing external screw thread grinding attachment only accommodate the both ends of workpiece, because of Workpiece length to be added
It is longer, lack support in the middle part of workpiece, in grinding process, is easy to shake, causes machining accuracy low.
Summary of the invention
The purpose of the present invention is to provide a kind of screw rod external screw thread grinding attachments, solve existing existing external screw thread grinding dress
It sets, lacks to the support in the middle part of workpiece, then in grinding process, workpiece is easy to shake, and leads to the technical problem that machining accuracy is low.
To achieve the goals above, the invention patent technical solution is as follows:
A kind of screw rod external screw thread grinding attachment, including bracket, the bracket include bottom plate and lifting arm, the lifting arm
Lower end is provided with grinding wheel, and first motor is fixedly installed in the cavity of lifting arm, and the output shaft and grinding wheel of first motor are connected, the
The rotation of one motor driven grinding wheel；
Lead screw and the second motor are provided on the bottom plate, grinding wheel axis tilts a screw thread liter with respect to the axis of lead screw
Angle, the both ends of lead screw and bottom plate are rotatablely connected, and are provided with slide plate above bottom plate, the bottom of slide plate is fixedly installed slide, slide
On offer tapped through hole, screw rod is threadedly coupled with slide, and one end of the output shaft of the second motor and screw rod is connected；
Third motor, two the first fixed plates, two the second fixed plates and two groups of fixtures are vertically arranged on the slide plate,
The central point line of two groups of fixtures is parallel with lead screw, and two groups of fixtures are separately positioned in two the first fixed plates, every group of fixture packet
Include fixed setting the first electromagnetic switch on the first fixing plate and the first connecting rod being rotatably arranged in the first fixed plate, the
Two connecting rods, the movable core of the first electromagnetic switch and one end of first connecting rod are rotatablely connected, and the first connecting rod other end is set
It is equipped with upper gripper jaw, the bottom surface of upper gripper jaw is arched upward upwards as arc surface, is additionally provided with the first moving tooth on first connecting rod；
Be provided with the second moving tooth in second connecting rod, second connecting rod one end is provided with lower clamping jaw, lower clamping jaw it is upper
Surface is arc surface to lower recess, and upper gripper jaw and lower clamping jaw are oppositely arranged；
Described two second fixed plates are located at the two sides of two the first fixed plates, rotate and are provided in each second fixed plate
End is accommodated, the output shaft of third motor and the input shaft of retarder are connected, and the output shaft of retarder and one of aid end are solid
Even, it is described two aid ends with central point it is conllinear with the central point of two groups of fixtures.
When carrying out external screw thread processing grinding to workpiece, the both ends that two aid ends support workpiece are first passed through, work is made
Part is stepped up；When being then powered to the first electromagnetic switch of two fixtures, the first electromagnetic switch movable core is moved up, driving first
Connecting rod is rotated around the tie point of itself and the first fixed plate, then the first moving tooth squeezes the second moving tooth, make the second connecting rod around its with
The tie point of first fixed plate rotates, then workpiece by upper gripper jaw, lower jaw bite and hold, upper gripper jaw, lower clamping jaw arc surface
Mutually suit with the outer surface of workpiece, lower clamping jaw plays a supporting role to workpiece；Fixture primarily serves support and limit to workpiece
Effect, but workpiece can't be stepped up, when third motor driven accommodates end rotation, the speed rotation for being able to drive workpiece to set,
Fixture relatively rotates with workpiece.The upper gripper jaw of fixture, lower clamping jaw the corresponding central angle of arc surface be 60 degree, guarantee grinding wheel
When to workpiece grinding, fixture will not be interfered with grinding wheel；Then decline lifting arm, open first motor, grinding wheel with
The periphery face contact of one end of workpiece simultaneously rotates, and starts to carry out external screw thread grinding；It is then turned on the second motor, driving lead screw turns
It is dynamic, drive slide plate mobile, to complete workpiece entirely externally threaded grinding.By the way that fixture is arranged, to playing in the middle part of workpiece
Supporting role, upper gripper jaw, lower clamping jaw arc surface play position-limiting action to workpiece, then in grinding engineering, workpiece will not shake
It is dynamic, stable shape is enhanced, machining accuracy and yield rate are improved.
In this application, using grinding wheel as grinding tool, and grinding wheel axis opposite piece axis tilts a screw thread
Lift angle, grinding wheel make in-movement to workpiece, and workpiece is rotated around the axis of itself, and every revolution, axial shift-in one
Screw pitch is ground screw thread by the method for axial feed.In this way, because grinding wheel only has a complete tooth form, so repairing
The mechanism of whole grinding wheel is fairly simple, as long as with a grinding wheel, so that it may which the screw thread for processing different screw pitch processes the precision of rear thread
Also relatively high.
It is further improved, described two aid ends are oppositely arranged, and accommodate the tapered of end.The both ends of workpiece are provided with recessed
Hole, the cone for accommodating end is corresponding with the pit of workpiece, is equipped with, and improves workpiece stability, prevents in process
Workpiece and aid end are detached from.
It is further improved, is provided with the track polished rod parallel with screw rod on the bottom plate, track polished rod is set across slide
It sets, the both ends of track polished rod are fixedly connected with bottom plate, and slide plate is driven by screw rod and moved back and forth on track polished rod.By the way that rail is arranged
Road polished rod increases structural stability, and skateboarding is steady, and control precision is high.
It is further improved, limit switches are arranged in the lead screw both ends.After slide plate and limit switch collision, the second motor stops
Rotation stop is dynamic.
The present invention has technical effect as is evident below by adopting the above technical scheme:
By the way that fixture is arranged, to playing a supporting role in the middle part of workpiece, upper gripper jaw, lower clamping jaw arc surface play limit to workpiece
Position effect, then in grinding engineering, workpiece will not shake, and enhance stable shape, improve machining accuracy and yield rate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of screw rod external screw thread grinding attachment of the present invention.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Specific embodiment
To keep the purpose of the present invention and technical solution clearer, below in conjunction with the embodiment of the present invention to skill of the invention
Art scheme is clearly and completely described.
As shown in Figure 1-3, a kind of screw rod external screw thread grinding attachment, including bracket 1, the bracket include bottom plate 2 and lifting
Arm 3, the lower end of the lifting arm 3 are provided with grinding wheel 8, and first motor 7, first motor 7 are fixedly installed in the cavity of lifting arm 3
Output shaft and grinding wheel 8 be connected, first motor 7 drive grinding wheel 8 rotate；
Lead screw 4 and the second motor 5 are provided on the bottom plate 2,8 axis of grinding wheel tilts a spiral shell with respect to the axis of lead screw 4
Line lift angle, the both ends of lead screw 4 and bottom plate 4 are rotatablely connected, and are provided with slide plate 6 above bottom plate 4, the bottom of slide plate is fixedly installed cunning
Seat 20 offers tapped through hole on slide 20, and screw rod 4 is threadedly coupled with slide, and the one of the output shaft of the second motor 5 and screw rod 4
End is connected；
11, two, third motor the second fixed plate 10 of the first fixed plate 9, two and two groups are vertically arranged on the slide plate
The central point line of fixture, two groups of fixtures is parallel with lead screw 4, and two groups of fixtures are separately positioned in two the first fixed plates 9, and every group
Fixture include the first electromagnetic switch 13 being fixed in the first fixed plate 9 and be rotatably arranged in the first fixed plate 9 the
One connecting rod 14, the second connecting rod 17, the movable core of the first electromagnetic switch 13 and one end of first connecting rod 14 are rotatablely connected,
14 other end of first connecting rod is provided with upper gripper jaw 15, and the bottom surface of upper gripper jaw 15 is arched upward upwards as arc surface, first connecting rod
The first moving tooth 16 is additionally provided on 14；
The second moving tooth 18 is provided in second connecting rod 17, second connecting rod one end is provided with lower clamping jaw 19, lower folder
The upper surface of pawl 19 is arc surface to lower recess, and upper gripper jaw 14 and lower clamping jaw 19 are oppositely arranged；
Described two second fixed plates 10 are located at the two sides of two the first fixed plates 9, rotate in each second fixed plate 10
Be provided with aid end, the input shaft of the output shaft of third motor 11 and retarder is connected, the output shaft of retarder and one of them
Accommodate end be connected, it is described two aid ends with central point it is conllinear with the central point of two groups of fixtures.
When carrying out external screw thread processing grinding to workpiece 30, the both ends that two aid ends support workpiece 30 are first passed through,
Step up workpiece；When being then powered to the first electromagnetic switch 13 of two fixtures, 13 movable core of the first electromagnetic switch is moved up,
First connecting rod 14 is driven to rotate around the tie point of itself and the first fixed plate, then the first moving tooth 16 squeezes the second moving tooth 17, makes the
Two connecting rods 17 are rotated around the tie point of itself and the first fixed plate, then workpiece by upper gripper jaw, lower jaw bite and hold, upper folder
Pawl 15,19 arc surface of lower clamping jaw and the outer surface of workpiece mutually suit, and lower clamping jaw 19 plays a supporting role to workpiece 30；Fixture is to work
Part primarily serves the effect of support and limit, but can't step up workpiece, when third motor driven accommodates end rotation, is able to drive
Speed rotation of the workpiece to set, fixture relatively rotate with workpiece.The upper gripper jaw of fixture, the arc surface of lower clamping jaw are corresponding
Central angle is 60 degree, and when guaranteeing grinding wheel to workpiece grinding, fixture will not be interfered with grinding wheel；Then make under lifting arm
Drop opens first motor 7, and the periphery face contact of grinding wheel 8 and one end of workpiece 30 simultaneously rotates, and starts to carry out external screw thread grinding to add
Work；It is then turned on the second motor 5, the driving rotation of lead screw 4 drives slide plate 6 mobile, adds to complete the entire externally threaded grinding of workpiece
Work.By the way that fixture is arranged, to playing a supporting role in the middle part of workpiece, upper gripper jaw 15,19 arc surface of lower clamping jaw play workpiece 30
Position-limiting action, then in grinding engineering, workpiece will not shake, and enhance stable shape, improve machining accuracy and yield rate.
In the present embodiment, described two aid ends are oppositely arranged, and accommodate the tapered of end.The both ends of workpiece 30 are provided with
Pit, the cone for accommodating end is corresponding with the pit of workpiece, is equipped with, and improves workpiece stability, prevents in process
Middle workpiece and aid end are detached from.
In the present embodiment, it is provided with the track polished rod 12 parallel with screw rod 4 on the bottom plate 2, track polished rod 12 is worn
Cross the setting of slide 20, the both ends of track polished rod 12 are fixedly connected with bottom plate 2, slide plate 6 from the driving of screw rod 4 on track polished rod 12 toward
Multiple movement.By the way that track polished rod 12 is arranged, increase structural stability, slide plate 6 moves steadily, and control precision is high.
In the present embodiment, limit switches are arranged in 4 both ends of lead screw.After slide plate and limit switch collision, the second electricity
Machine stops operating.
Do not done in the present invention illustrate be the prior art or can be realized by the prior art, and the present invention
Described in specific implementation case be only preferable case study on implementation of the invention, practical range not for the purpose of limiting the invention.
Equivalent changes and modifications made by i.e. all contents according to scope of the present invention patent all should be used as technology scope of the invention.
Claims (4)
1. a kind of screw rod external screw thread grinding attachment, which is characterized in that including bracket, the bracket includes bottom plate and lifting arm, institute
The lower end for stating lifting arm is provided with grinding wheel, is fixedly installed first motor in the cavity of lifting arm, the output shaft of first motor with
Grinding wheel is connected, and first motor drives grinding wheel rotation；
Lead screw and the second motor are provided on the bottom plate, grinding wheel axis tilts a lead angle, silk with respect to the axis of lead screw
The both ends of thick stick and bottom plate are rotatablely connected, and are provided with slide plate above bottom plate, the bottom of slide plate is fixedly installed slide, opens up on slide
There is tapped through hole, screw rod is threadedly coupled with slide, and the output shaft of the second motor and one end of screw rod are connected；
It is vertically arranged with third motor, two the first fixed plates, two the second fixed plates and two groups of fixtures on the slide plate, two groups
The central point line of fixture is parallel with lead screw, and two groups of fixtures are separately positioned in two the first fixed plates, and every group of fixture includes solid
The first electromagnetic switch of fixed setting on the first fixing plate and the first connecting rod being rotatably arranged in the first fixed plate, second connect
Extension bar, the movable core of the first electromagnetic switch and one end of first connecting rod are rotatablely connected, and the first connecting rod other end is provided with
Upper gripper jaw, the bottom surface of upper gripper jaw are arched upward upwards as arc surface, are additionally provided with the first moving tooth on first connecting rod；
The second moving tooth is provided in second connecting rod, second connecting rod one end is provided with lower clamping jaw, the upper surface of lower clamping jaw
It is arc surface to lower recess, upper gripper jaw and lower clamping jaw are oppositely arranged；
Described two second fixed plates are located at the two sides of two the first fixed plates, and rotation is provided with aid in each second fixed plate
End, the output shaft of third motor and the input shaft of retarder are connected, and the output shaft of retarder and one of aid end are connected, institute
State two aid ends with central point it is conllinear with the central point of two groups of fixtures.
2. screw rod external screw thread grinding attachment according to claim 1, which is characterized in that described two aid ends are opposite to be set
It sets, accommodates the tapered of end.
3. screw rod external screw thread grinding attachment according to claim 1 or 2, which is characterized in that be provided on the bottom plate
The track polished rod parallel with screw rod, track polished rod are arranged across slide, and the both ends of track polished rod are fixedly connected with bottom plate, slide plate by
Screw rod driving moves back and forth on track polished rod.
4. screw rod external screw thread grinding attachment according to claim 3, which is characterized in that the lead screw both ends are provided with limit
Switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709485.5A CN109396573A (en) | 2017-08-17 | 2017-08-17 | A kind of screw rod external screw thread grinding attachment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710709485.5A CN109396573A (en) | 2017-08-17 | 2017-08-17 | A kind of screw rod external screw thread grinding attachment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109396573A true CN109396573A (en) | 2019-03-01 |
Family
ID=65455224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710709485.5A Pending CN109396573A (en) | 2017-08-17 | 2017-08-17 | A kind of screw rod external screw thread grinding attachment |
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| Country | Link |
|---|---|
| CN (1) | CN109396573A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3231043A1 (en) * | 1981-08-21 | 1983-03-10 | Goldhagen, Ernst, 4215 Southport, Queensland | Process and apparatus for shaping objects |
| CN2455426Y (en) * | 2000-12-23 | 2001-10-24 | 扬州扬大三联模具有限公司 | Screw rod grinder |
| US20150174706A1 (en) * | 2013-12-19 | 2015-06-25 | Mathew W. McClure | Apparatus for aligning sections of pipe |
| CN204519220U (en) * | 2015-01-27 | 2015-08-05 | 曹志军 | Gear pin type lotus seeds retention device and apply its shelling and peeling lotus seed machine and lotus seed shelling machine |
| CN106238595A (en) * | 2016-08-04 | 2016-12-21 | 新昌县三才机械有限公司 | A kind of for producing the refrigeration diameter changing device of accessory reducer pipe and processing method thereof |
| CN207171122U (en) * | 2017-08-17 | 2018-04-03 | 南京雄豹精密机械有限公司 | A kind of screw mandrel external screw thread grinding attachment |
-
2017
- 2017-08-17 CN CN201710709485.5A patent/CN109396573A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3231043A1 (en) * | 1981-08-21 | 1983-03-10 | Goldhagen, Ernst, 4215 Southport, Queensland | Process and apparatus for shaping objects |
| CN2455426Y (en) * | 2000-12-23 | 2001-10-24 | 扬州扬大三联模具有限公司 | Screw rod grinder |
| US20150174706A1 (en) * | 2013-12-19 | 2015-06-25 | Mathew W. McClure | Apparatus for aligning sections of pipe |
| CN204519220U (en) * | 2015-01-27 | 2015-08-05 | 曹志军 | Gear pin type lotus seeds retention device and apply its shelling and peeling lotus seed machine and lotus seed shelling machine |
| CN106238595A (en) * | 2016-08-04 | 2016-12-21 | 新昌县三才机械有限公司 | A kind of for producing the refrigeration diameter changing device of accessory reducer pipe and processing method thereof |
| CN207171122U (en) * | 2017-08-17 | 2018-04-03 | 南京雄豹精密机械有限公司 | A kind of screw mandrel external screw thread grinding attachment |
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