CN208468206U - A kind of multifunctional safety tap wrench with screw die - Google Patents
A kind of multifunctional safety tap wrench with screw die Download PDFInfo
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- CN208468206U CN208468206U CN201821066449.8U CN201821066449U CN208468206U CN 208468206 U CN208468206 U CN 208468206U CN 201821066449 U CN201821066449 U CN 201821066449U CN 208468206 U CN208468206 U CN 208468206U
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Abstract
A kind of multifunctional safety tap wrench with screw die, including handle body, fixed handle, flexible handle and tool clamp ontology；Handle body is equipped with force transmission shaft, and tool, which clamps, is equipped with screw die holding holes, screw tap holding holes and force transmission shaft suit hole in ontology；Screw die holding holes are circumferentially with screw die fastening screw；Flexible handle is connected with tool clamping ontology screw thread, and screw tap grip block is located in screw tap holding holes and is connected with flexible handle, and grip block and holding holes cooperation carry out screw tap clamping；Fixed handle is respectively used to placing screws knife cutter head and magnetic jack is arranged；Force transmission shaft is equipped with annular groove and locking skewed slot, and force transmission shaft suit hole is circumferentially with housing screw, holddown spring and ball stud, and the bulb of ball stud acts against in locking skewed slot；Preloading spring is housed between handle body and tool clamping ontology；There are three types of application methods for the spanner tool of the utility model, use respectively as reamer/windeisen, die-stock and screwdriver, meet overload protection requirement.
Description
Technical field
The utility model belongs to screw thread process technical field, pulls more particularly to a kind of multifunctional safety tap die
Hand.
Background technique
Currently, small size screwing tool mainly has tap and die, screw tap is for processing small size internal screw thread, screw die
For processing small size external screw thread, the auxiliary tool that internal thread machining is carried out for clamping screw tap is windeisen, also known as " hinge
Thick stick ", the auxiliary tool that outer bolt processing is carried out for clamping screw die is die-stock, and also known as " die handle ", and screw tap is pulled
Hand and die-stock are independent from each other two kinds of spanners always, that is to say, that when needs while carrying tap and die progress spiral shell
When line is processed, it is also necessary to carry windeisen and die-stock simultaneously, this is virtually increasing auxiliary tool
Carrying amount, and for tool manufacturing enterprise, it also necessarily will increase the manufacturing cost of auxiliary tool.
Further more, need fitted bolt part to be tightened under normal conditions after the small size hole processing on workpiece is good,
Necessarily lacking at this time can't do without this auxiliary tool of screwdriver, that is to say, that while carrying windeisen and die-stock,
Also it has to carry knife of tightening up a screw, causes the carrying amount of auxiliary tool further to increase, can not only occupy limited tool and deposit
Between emptying, the self weight of a large amount of auxiliary tools can also reduce property easy to carry.
In addition, when carrying out internal thread machining using traditional windeisen clamping screw tap, and traditional die-stock is utilized to press from both sides
When holding screw die and carrying out outer bolt processing, often because of screw tap caused by undue force or screw die damage, processed in particular with screw tap
It when blind threaded, more wants especially careful, because easily screw tap fractures in processing blind hole screw thread, while causing part rejection.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of multifunctional safety tap wrench with screw die, should
Spanner is integrated with the repertoire of windeisen, die-stock and screwdriver for the first time, and as windeisen in use, may be used also
Reamer holder is extended to carry out using while meeting the screw tap of different size, the clamping of reamer and screw die and exchange；It only needs every time
Three kinds of job requirements can be met by carrying a set of spanner, considerably reduced the carrying amount of auxiliary tool, effectively saved tool
Parking space, and the self weight of auxiliary tool also decreases, and improves property easy to carry, comes simultaneously for tool manufacturing enterprise
It says, can also reduce the manufacturing cost of auxiliary tool；The spanner of the utility model is also equipped with overload protection function, can effectively avoid
Tap and die is damaged in screw thread process, and the proportion of goods damageds of tap and die are greatly lowered.
To achieve the goals above, the utility model adopts the following technical solution: a kind of multifunctional safety tap die
Spanner, including handle body, the first fixed handle, the second fixed handle, flexible handle and tool clamp ontology；Described first is solid
Determine handle and the second fixed handle is arranged on handle body, and the first fixed handle and the second fixed handle are apart
180°；It is provided with force transmission shaft on the handle body, offers part relief hole at the center of handle body and force transmission shaft；?
Three-level stepped hole is offered in the tool clamping ontology, first order stepped hole is screw die holding holes, and second level stepped hole is silk
Holding holes are bored, third level stepped hole is force transmission shaft suit hole；It is distributed on the corresponding tool clamping ontology of the screw die holding holes
There are several screw die fastening screws；Described flexible handle one end clamps threaded hole and tool clamping ontology spiral shell on ontology by tool
Line is connected, and the inner end of flexible handle extends in screw tap holding holes, is equipped with screw tap grip block in the inner end of flexible handle, leads to
Screw tap grip block is crossed to be clamped screw tap end side handle with the cooperation of screw tap holding holes；The force transmission shaft of the handle body is located at work
In the force transmission shaft suit hole of tool clamping ontology, force transmission shaft and force transmission shaft suit hole clearance fit, in the handle body and tool
Preloading spring is set on force transmission shaft between clamping ontology；Annular groove and locking skewed slot, lock are offered on the force transmission shaft
Tight skewed slot one end is connected with annular groove；Lock sleeve is fixed on the corresponding tool clamping ontology of the force transmission shaft suit hole
Pipe is equipped with ball stud, ball stud and locking sleeve clearance fit in the inner end of locking sleeve, and the bulb end of ball stud acts against lock
In tight skewed slot；Housing screw is installed in the outer end of the locking sleeve, compression is installed between housing screw and ball stud
Spring is adjusted the pressing force of ball stud by adjusting the decrement of holddown spring.
First fixed handle is hollow structure, and it is different that several models are placed in the centre bore of the first fixed handle
Driver bit, be equipped at the outer end aperture of the first fixed handle plug capping；At the end of second fixed handle
Portion offers driver bit inserting location hole, and driver bit is matched with driver bit inserting location hole, and screwdriver
The shank body that cutter head inserts the second fixed handle corresponding to location hole has magnetism；The inserting positioning section of the driver bit is adopted
With outer-hexagonal structure, the driver bit inserting location hole uses interior hexagonal structure.
The screw die holding holes are configured with several screw die reducing sleeves, and the screw die of different model is adapted to by screw die reducing sleeve.
It is equipped in the outer surface of first fixed handle, the second fixed handle and flexible handle and rubs for increasing to hold
Wipe the knurling structure of power.
A kind of application method of multifunctional safety tap wrench with screw die carries out internal thread machining, packet for clamping screw tap
Include following steps:
Step 1: according to dimension of inner screw thread to be processed, the pretightning force of housing screw is adjusted, makes ball stud in the pre- of setting
It being acted against under clamp force in locking skewed slot, screw tap end side handle is inserted into screw tap holding holes by the screw tap of one processing of reselection,
Screw tap end side handle is pressed in screw tap holding holes by rotary moveable handle by screw tap grip block；
Step 2: two hands hold the first fixed handle and the second fixed handle respectively, the head of screw tap are abutted against to be added
At the screw hole aperture of work, rotational handle ontology while applying lower pressure；When the processing resistance of internal screw thread is less than the damage of screw tap
When power, does not occur to slide relatively between ball stud and locking skewed slot, provide rotating torque by rotational handle ontology for screw tap, directly
To the processing for completing internal screw thread；When the processing resistance of internal screw thread is greater than the damageability of screw tap, between ball stud and locking skewed slot
Opposite sliding will occur, the rotating torque that screw tap is born is not further added by, until ball stud slides into annular groove from locking skewed slot,
Preloading spring is compressed, and handle body dallies, and carries out overload protection to screw tap；
Step 3: after process finishing, handle body is rotated backward；When overload protection does not occur, screw tap will be exited directly
Screw hole；When overload protection occurs, under the deboost effect of preloading spring, make ball stud by rotating backward handle body
It is returned to again from annular groove in locking skewed slot, and then screw tap is exited into screw hole again；Then flexible handle is reversely rotated, silk is released
Grip block is bored to the pressing force of screw tap end side handle, screw tap end side handle is extracted out from screw tap holding holes.
A kind of application method of multifunctional safety tap wrench with screw die carries out external screw thread processing, packet for clamping screw die
Include following steps:
Step 1: according to external screw thread size to be processed, the pretightning force of housing screw is adjusted, makes ball stud in the pre- of setting
It is acted against under clamp force in locking skewed slot, the screw die of one processing of reselection, matched plate is selected according to the difference of screw die model
Screw die is put into screw die holding holes by tooth reducing sleeve by screw die reducing sleeve, screws screw die fastening screw, completes screw die in screw die
Fixation in holding holes；
Step 2: so that screw tap grip block is backed to extreme position by rotary moveable handle, guarantee the ruler of screw tap holding holes
Very little maximum is conceded for screw rod to be processed and walks channel；
Step 3: two hands hold the first fixed handle and the second fixed handle respectively, the inner hole of screw die are acted against to be added
The screw rod end of work, rotational handle ontology while applying lower pressure；When externally threaded processing resistance is less than the damageability of screw die
When, do not occur to slide relatively between ball stud and locking skewed slot, provides rotating torque by rotational handle ontology for screw die, until
Complete externally threaded processing；It, will between ball stud and locking skewed slot when externally threaded processing resistance is greater than the damageability of screw die
Opposite sliding occurs, the rotating torque that screw die is born is not further added by, until ball stud slides into annular groove from locking skewed slot, in advance
Tight spring is compressed, and handle body dallies, and carries out overload protection to screw die；
Step 4: after process finishing, handle body is rotated backward；When overload protection does not occur, screw die will be exited directly
Screw rod；When overload protection occurs, under the deboost effect of preloading spring, make ball stud by rotating backward handle body
It is returned to again from annular groove in locking skewed slot, and then screw die is exited into screw rod again；Then screw die fastening screw is unclamped, plate is released
The fixation of tooth takes out screw die and screw die reducing sleeve from screw die holding holes together.
A kind of application method of multifunctional safety tap wrench with screw die uses progress screw to screw, wraps as screwdriver
Include following steps:
Step 1: the plug capping on the first fixed handle is removed, according to the nut model of screw, selects matched screw
Knife cutter head, and the driver bit that the driver bit chosen is inserted into the second fixed handle end is inserted into positioning hole, pass through
Magnetic force carries out absorption fixation；
Step 2: holding handle body or the first fixed handle, driver bit acted against on the nut of screw, applies
Rotatory force, until completing screwing for screw；
Step 3: driver bit is extracted from driver bit inserting location hole, and places back in the first fixed hand
In the centre bore of handle, then plug is covered and is reinstalled, driver bit is Resealed back in the first fixed handle.
The utility model has the beneficial effects that
The multifunctional safety tap wrench with screw die of the utility model, is integrated with windeisen, die-stock and spiral shell for the first time
The repertoire of silk knife, and carried out in use, being further extended to reamer holder using while meeting difference as windeisen
The screw tap of specification, the clamping of reamer and screw die and exchange；Only need to carry a set of spanner can meet three kinds of job requirements every time, greatly
The amplitude reduction carrying amount of auxiliary tool, effectively saves tool storage space, and the self weight of auxiliary tool is also dropped therewith
It is low, property easy to carry is improved, for tool manufacturing enterprise, can also reduce the manufacturing cost of auxiliary tool；This reality
It is also equipped with overload protection function with novel spanner, can effectively avoid tap and die from being damaged in screw thread process, substantially
Degree reduces the proportion of goods damageds of tap and die.
Detailed description of the invention
Fig. 1 is a kind of main view of multifunctional safety tap wrench with screw die of the utility model；
Fig. 2 is a kind of side view of multifunctional safety tap wrench with screw die (overload protection does not occur) of the utility model
Figure；
Fig. 3 is a kind of side view of multifunctional safety tap wrench with screw die (overload protection has occurred) of the utility model
Figure；
Fig. 4 is the main view of the handle body of the utility model；
Fig. 5 is the side view of the handle body of the utility model；
In figure, 1-handle body, the 2-the first fixed handle, the 3-the second fixed handle, 4-flexible handles, 5-tools
Clamp ontology, 6-force transmission shafts, 7-part relief holes, 8-screw die holding holes, 9-screw tap holding holes, 10-force transmission shafts suit
Hole, 11-screw die fastening screws, 12-screw tap grip blocks, 13-preloading springs, 14-annular grooves, 15-locking skewed slots, 16-
Locking sleeve, 17-ball studs, 18-housing screws, 19-holddown springs, 20-driver bits, the capping of 21-plugs,
22-driver bits insert location hole, 23-screw die reducing sleeves.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Fig. 1~5, a kind of multifunctional safety tap wrench with screw die, including handle body 1, the first fixed handle
2, the second fixed handle 3, flexible handle 4 and tool clamp ontology 5；First fixed handle 2 and the second fixed handle 3 are all provided with
It sets on handle body 1, and the first fixed handle 2 and the second fixed handle 3 180 ° apart；On the handle body 1
It is provided with force transmission shaft 6, offers part relief hole 7 at the center of handle body 1 and force transmission shaft 6；Ontology 5 is clamped in the tool
Three-level stepped hole is inside offered, first order stepped hole is screw die holding holes 8, and second level stepped hole is screw tap holding holes 9, the third level
Stepped hole is force transmission shaft suit hole 10；It is tight that several screw die are distributed on the screw die holding holes 8 corresponding tool clamping ontology 5
Gu screw 11；Described 4 one end of flexible handle clamps the threaded hole on ontology 5 by tool and is connected with tool clamping 5 screw thread of ontology,
And the inner end of flexible handle 4 extends in screw tap holding holes 9, is equipped with screw tap grip block 12 in the inner end of flexible handle 4, passes through
Screw tap grip block 12 is clamped screw tap end side handle with the cooperation of screw tap holding holes 9；The force transmission shaft of the handle body 16
In in the force transmission shaft suit hole 10 of tool clamping ontology 5, force transmission shaft 6 and 10 clearance fit of force transmission shaft suit hole, in the handle
Preloading spring 13 is set on force transmission shaft 6 between ontology 1 and tool clamping ontology 5；Annular is offered on the force transmission shaft 6
Slot 14 and locking skewed slot 15, locking 15 one end of skewed slot are connected with annular groove 14；In the corresponding work of the force transmission shaft suit hole 10
It is fixed with locking sleeve 16 on tool clamping ontology 5, is equipped with ball stud 17, ball stud 17 and lock sleeve in the inner end of locking sleeve 16
16 clearance fit of pipe, the bulb end of ball stud 17 act against in locking skewed slot 15；It is equipped in the outer end of the locking sleeve 16
Housing screw 18 is equipped with holddown spring 19, between housing screw 18 and ball stud 17 by adjusting the pressure of holddown spring 19
The pressing force of ball stud 17 is adjusted in contracting amount.
First fixed handle 2 is hollow structure, is placed with several models not in the centre bore of the first fixed handle 2
Same driver bit 20 is equipped with plug capping 21 at the outer end aperture of the first fixed handle 2；In the described second fixed hand
The end of handle 3 offers driver bit inserting location hole 22, and driver bit 20 inserts 22 phase of location hole with driver bit
Cooperation, and the shank body of the second fixed handle 3 corresponding to driver bit inserting location hole has magnetism；The driver bit
20 inserting positioning section uses outer-hexagonal structure, and the driver bit inserting location hole 22 uses interior hexagonal structure.
The screw die holding holes 8 are configured with several screw die reducing sleeves 23, are adapted to different model by screw die reducing sleeve 23
Screw die.
It is equipped in the outer surface of first fixed handle 2, the second fixed handle 3 and flexible handle 4 and is held for increasing
Hold the knurling structure of frictional force.
A kind of application method of multifunctional safety tap wrench with screw die carries out internal thread machining, packet for clamping screw tap
Include following steps:
Step 1: according to dimension of inner screw thread to be processed, the pretightning force of housing screw 18 is adjusted, ball stud 17 is being set
Pretightning force under act against locking skewed slot 15 in, the screw tap of one processing of reselection, by screw tap end side handle be inserted into screw tap clamp
It holds in hole 9, rotary moveable handle 4, screw tap end side handle is pressed in screw tap holding holes 9 by screw tap grip block 12；
Step 2: two hands hold the first fixed handle 2 and the second fixed handle 3 respectively, by the head of screw tap abut against to
At the screw hole aperture of processing, rotational handle ontology 1 while applying lower pressure；When the processing resistance of internal screw thread is less than the damage of screw tap
When bad power, does not occur to slide relatively between ball stud 17 and locking skewed slot 15, provide rotation by rotational handle ontology 1 for screw tap
Torque, the processing until completing internal screw thread；When the processing resistance of internal screw thread is greater than the damageability of screw tap, ball stud 17 and locking
Opposite sliding will occur between skewed slot 15, the rotating torque that screw tap is born is not further added by, until ball stud 17 is from locking skewed slot 15
In middle slide-in annular groove 14, preloading spring 13 is compressed, and handle body 1 dallies, and carries out overload protection to screw tap；
Step 3: after process finishing, handle body 1 is rotated backward；When overload protection does not occur, screw tap will be exited directly
Screw hole；When overload protection occurs, under the deboost effect of preloading spring 13, make ball by rotating backward handle body 1
Head pin 17 is returned to from annular groove 14 again in locking skewed slot 15, and then screw tap is exited screw hole again；Then reverse rotation activity
Handle 4 releases screw tap grip block 12 to the pressing force of screw tap end side handle, screw tap end side handle is taken out from screw tap holding holes 9
Out.
Similarly, the reamer that this operation is also applied for clamping different size reams.
A kind of application method of multifunctional safety tap wrench with screw die carries out external screw thread processing, packet for clamping screw die
Include following steps:
Step 1: according to external screw thread size to be processed, the pretightning force of housing screw 18 is adjusted, ball stud 17 is being set
Pretightning force under act against in locking skewed slot 15, the screw die of one processing of reselection is matched according to the different selections of screw die model
Screw die is put into screw die holding holes 8 by screw die reducing sleeve 23, screws screw die fastening screw 11 by the screw die reducing sleeve 23 of set,
Complete fixation of the screw die in screw die holding holes 8；
Step 2: so that screw tap grip block 12 is backed to extreme position by rotary moveable handle 4, guarantee screw tap holding holes 9
Size it is maximum, conceded for screw rod to be processed and walk channel；
Step 3: two hands hold the first fixed handle 2 and the second fixed handle 3 respectively, by the inner hole of screw die act against to
The screw rod end of processing, rotational handle ontology 1 while applying lower pressure；When externally threaded processing resistance is less than the damage of screw die
When power, does not occur to slide relatively between ball stud 17 and locking skewed slot 15, provide rotatory force by rotational handle ontology 1 for screw die
Square, until completing externally threaded processing；When externally threaded processing resistance is greater than the damageability of screw die, ball stud 17 and locking are oblique
Opposite sliding will occur between slot 15, the rotating torque that screw die is born is not further added by, until ball stud 17 is from locking skewed slot 15
It slides into annular groove 14, preloading spring 13 is compressed, and handle body 1 dallies, and carries out overload protection to screw die；
Step 4: after process finishing, handle body 1 is rotated backward；When overload protection does not occur, screw die will be exited directly
Screw rod；When overload protection occurs, under the deboost effect of preloading spring 13, make ball by rotating backward handle body 1
Head pin 17 is returned to from annular groove 14 again in locking skewed slot 15, and then screw die is exited screw rod again；Then screw die fastening is unclamped
Screw 11 releases the fixation of screw die, and screw die and screw die reducing sleeve 23 are taken out from screw die holding holes 8 together.
A kind of application method of multifunctional safety tap wrench with screw die uses progress screw to screw, wraps as screwdriver
Include following steps:
Step 1: the plug capping 21 removed on the first fixed handle 2 selects matched according to the nut model of screw
Driver bit 20, and the driver bit of the driver bit 20 chosen insertion 3 end of the second fixed handle is inserted into positioning
In hole 22, absorption fixation is carried out by magnetic force；
Step 2: holding handle body 1 or the first fixed handle 2, driver bit 20 acted against on the nut of screw,
Apply rotatory force, until completing screwing for screw；
Step 3: driver bit 20 is extracted from driver bit inserting location hole 22, and it is solid to place back in first
In the centre bore for determining handle 2, then plug is covered 21 and is reinstalled, driver bit 20 is Resealed back in the first fixed handle 2.
Scheme in embodiment is not the scope of patent protection to limit the utility model, all without departing from the utility model
Carried out by equivalence enforcement or change, be both contained in the scope of the patents of this case.
Claims (4)
1. a kind of multifunctional safety tap wrench with screw die, it is characterised in that: including handle body, the first fixed handle, second
Fixed handle, flexible handle and tool clamp ontology；First fixed handle and the second fixed handle are arranged at handle sheet
On body, and the first fixed handle and 180 ° apart of the second fixed handle；It is provided with force transmission shaft on the handle body,
The center of handle body and force transmission shaft offers part relief hole；Three-level stepped hole is offered in tool clamping ontology,
First order stepped hole is screw die holding holes, and second level stepped hole is screw tap holding holes, and third level stepped hole is force transmission shaft suit hole；
Several screw die fastening screws are distributed on the corresponding tool clamping ontology of the screw die holding holes；Described flexible handle one end is logical
The threaded hole crossed on tool clamping ontology is connected with tool clamping ontology screw thread, and the inner end of flexible handle extends to screw tap clamping
In hole, screw tap grip block is installed in the inner end of flexible handle, is cooperated by screw tap grip block and screw tap holding holes to screw tap end
End side's handle is clamped；The force transmission shaft of the handle body be located at tool clamping ontology force transmission shaft suit hole in, force transmission shaft with
Force transmission shaft suit hole clearance fit clamps in the handle body and tool and is set with preload bullet on the force transmission shaft between ontology
Spring；Annular groove and locking skewed slot are offered on the force transmission shaft, locking skewed slot one end is connected with annular groove；In the power transmission
It is fixed with locking sleeve on the corresponding tool clamping ontology of axis suit hole, is equipped with ball stud, ball stud in the inner end of locking sleeve
With locking sleeve clearance fit, the bulb end of ball stud is acted against in locking skewed slot；It is equipped in the outer end of the locking sleeve
Housing screw is equipped with holddown spring between housing screw and ball stud, by adjusting holddown spring decrement to bulb
The pressing force of pin is adjusted.
2. a kind of multifunctional safety tap wrench with screw die according to claim 1, it is characterised in that: described first is fixed
Handle is hollow structure, the different driver bit of several models is placed in the centre bore of the first fixed handle, first
Plug capping is installed at the outer end aperture of fixed handle；Driver bit is offered in the end of second fixed handle to insert
Location hole is filled, driver bit is matched with driver bit inserting location hole, and corresponding to driver bit inserting location hole
The second fixed handle shank body have magnetism；The inserting positioning section of the driver bit uses outer-hexagonal structure, the spiral shell
Silk knife cutter head inserting location hole uses interior hexagonal structure.
3. a kind of multifunctional safety tap wrench with screw die according to claim 1, it is characterised in that: the screw die clamping
Hole is configured with several screw die reducing sleeves, and the screw die of different model is adapted to by screw die reducing sleeve.
4. a kind of multifunctional safety tap wrench with screw die according to claim 1, it is characterised in that: solid described first
The outer surface for determining handle, the second fixed handle and flexible handle is equipped with for increasing the knurling structure for holding frictional force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066449.8U CN208468206U (en) | 2018-07-06 | 2018-07-06 | A kind of multifunctional safety tap wrench with screw die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821066449.8U CN208468206U (en) | 2018-07-06 | 2018-07-06 | A kind of multifunctional safety tap wrench with screw die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208468206U true CN208468206U (en) | 2019-02-05 |
Family
ID=65213227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821066449.8U Active CN208468206U (en) | 2018-07-06 | 2018-07-06 | A kind of multifunctional safety tap wrench with screw die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208468206U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110899869A (en) * | 2019-12-29 | 2020-03-24 | 南京林业大学 | Manual thread machining device for shaft parts |
| CN111730529A (en) * | 2020-07-02 | 2020-10-02 | 广东电网有限责任公司 | Threading die spanner |
| CN110899869B (en) * | 2019-12-29 | 2024-05-17 | 南京林业大学 | Manual thread machining device for shaft parts |
-
2018
- 2018-07-06 CN CN201821066449.8U patent/CN208468206U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110899869A (en) * | 2019-12-29 | 2020-03-24 | 南京林业大学 | Manual thread machining device for shaft parts |
| CN110899869B (en) * | 2019-12-29 | 2024-05-17 | 南京林业大学 | Manual thread machining device for shaft parts |
| CN111730529A (en) * | 2020-07-02 | 2020-10-02 | 广东电网有限责任公司 | Threading die spanner |
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