CN208408561U - A kind of motor shaft fine turning outer circle floating locating centre mechanism - Google Patents
A kind of motor shaft fine turning outer circle floating locating centre mechanism Download PDFInfo
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- CN208408561U CN208408561U CN201820897502.2U CN201820897502U CN208408561U CN 208408561 U CN208408561 U CN 208408561U CN 201820897502 U CN201820897502 U CN 201820897502U CN 208408561 U CN208408561 U CN 208408561U
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- taper shank
- morse taper
- outer circle
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Abstract
The utility model discloses a kind of motor shaft fine turning outer circle floating locating centre mechanisms, are related to top technical field, to solve the problems, such as to be easy to produce circular runout in prior art motor axis process and length dimension is uncontrollable；It includes top component, top component includes Morse taper shank and positioning plate, central axis direction in Morse taper shank along motor shaft is connected with top ontology, spring and the spring spindle to offset with installation cavity bottom in turn, and the side of positioning plate is fixed on Morse taper shank by positioning screw, the other side of positioning plate and the end face of motor shaft offset；Motor shaft is provided with lopsided folder close to the end of wherein one group of top component, and deformity folder is detachably connected by locating bar and Morse taper shank.By implementing the technical program, it is ensured that for the motor shaft processed in two processing indexs of length dimension and bounce size in the margin of tolerance of setting, the smart structural design is reasonable, can effectively improve the machining accuracy of motor shaft.
Description
Technical field
The utility model relates to top technical fields, float more particularly to a kind of motor shaft fine turning outer circle and position top
Sharp mechanism.
Background technique
New energy electric motor vehicle is mainly driven by motor system, battery system and whole-control system three parts and constitutes, wherein
Motor driven systems are the parts for directly converting electrical energy into mechanical energy, determine the performance indicator of new energy electric motor vehicle；And it is right
Particularly important in the selection of new energy electric motor vehicle motor shaft, on the one hand the finishing for new energy motor shaft needs to design to close
On the other hand reason is exactly that machining accuracy will reach design requirement；New energy motor is since revolving speed is higher or power is larger, to electricity
The requirement of the precision of arbor is very high, the precision of dimensional tolerance and geometric tolerance especially for shafting.
Existing new energy motor shaft is processed only by two top clamping workpieces of head and the tail, such as application No. is
The patent of CN201720186910.2 discloses a kind of high-speed motor axis, including the sequentially connected reversed lock with same axis
Tight screw rod, first segment axis, second segment axis, third section axis, the 4th section of axis, the 5th section of axis, the 6th section of axis and positive tie down screw are high
The both ends of speed motor axis offer center hole respectively, and the center of the center hole is located on the axis, the reverse locking
The screw thread opposite with motor direction of rotation, the second segment axis and third section are respectively arranged on screw rod and positive tie down screw
It is formed with first shaft shoulder between axis, is formed with second shaft shoulder between the 4th section of axis and the 5th section of axis；Pass through above-mentioned technology
Scheme can effectively reduce motor shaft difficulty of processing, improve the precision of axis processing dimension tolerance and geometric tolerance；However, in early period
It is still not compact enough only with such fixed form to research and develop discovery in exemplar, workpiece is easy to generate circular runout in processing,
So that the motor shaft periphery processed generates uneven phenomenon, part processing length size and bounce size are difficult to
Guarantee.
Therefore, in view of the above technical problems, it is floating to need a kind of motor shaft fine turning outer circle of researching and designing by those skilled in the art
Dynamic locating centre mechanism controls two of the motor shaft processed in length dimension with bounce size with the design of cleverly structure
Index is processed in the margin of tolerance of setting, improves the machining accuracy of motor shaft.
Utility model content
In view of the above deficiencies of the prior art, the purpose of this utility model is to provide a kind of motor shaft fine turning outer circles
The motor shaft processed can be effectively controlled in two processing indexs of length dimension and bounce size in floating locating centre mechanism
In the margin of tolerance of setting, the machining accuracy of motor shaft is improved.
The utility model specifically uses following technical scheme to achieve the goals above:
A kind of motor shaft fine turning outer circle floating locating centre mechanism, top group including being oppositely arranged on motor shaft both ends
Part, the top component include Morse taper shank and the positioning plate that Morse taper shank front end is arranged in, and are offered in the Morse taper shank
Installation cavity, the central axis direction in installation cavity along motor shaft be connected in turn top ontology, spring and with installation cavity bottom phase
The spring spindle supported offers ejection hole in the front end of the Morse taper shank, and the top ontology stretches out and along ejection hole along electricity
The central axial line direction of arbor extends in the axis hole of motor shaft ends, is provided on the positioning plate and passes through for top ontology
Through-hole, and the side of positioning plate is fixed on Morse taper shank by positioning screw, the other side of positioning plate and the end of motor shaft
Face offsets；Motor shaft is provided with lopsided folder close to the end of wherein one group of top component, and the deformity folder is by locating bar and not
Formula taper shank is detachably connected.
The working principle of the utility model base case are as follows: process motor using the locating centre mechanism in the technical program
When axis, it is clamped in new energy motor shaft to be processed is stable between two groups of top components first, two groups of top ontologies are being pressed
Along the stretching of ejection hole and along the axis hole that the central axial line direction of motor shaft extends to motor shaft ends under the action of contracting spring,
Effective position compression can be carried out to it along the axial line of motor shaft outer circle central axis, avoid in process generate circular runout and
The motor shaft periphery processed is caused to generate uneven phenomenon；At the same time, determining for Morse taper shank front end is set
The end face of position plate and motor shaft offsets, and can position along the end face of motor shaft to it, it is ensured that motor shaft is in process
Length dimension, so that two processing indexs that the motor shaft that processes can be effectively controlled in length dimension and bounce size exist
In the margin of tolerance of setting, the machining accuracy of motor shaft is improved.
Further, the top ontology is provided with guide groove, one end of spring and the bottom of guide groove close to spring side
Portion is fixedly connected, and the other end of spring is fixedly connected with spring spindle.Specifically, spring is compressed spring, and the compression of spring
The central axial line of direction and motor is on same straight line, and the setting of top body end guide groove can be to compressed spring
Telescopic direction play the guiding role.
Further, the upper surface of the top ontology offers wedge groove, and retaining group is arranged in the top of the wedge groove
Part.After top ontology positions motor shaft outer circle central axis, avoid in process, top ontology occur retreating and
There is the generation of workpiece case accident.
Further, the retaining component includes retreat stop block and stopping screw, and correspondence is opened on the side wall of the Morse taper shank
Equipped with upper screwed hole, the external screw thread of the stopping screw is matched with the internal screw thread of upper screwed hole, one end of the retreat stop block with
Wedge groove cooperation contact, and the other end of retreat stop block and the end of stopping screw offset.Specifically, stopping screw is unclamped, it is top
Ontology stretches out ejection hole under the action of the spring, holds out against to the axis hole of motor shaft ends, is rotated further by stopping screw, and retaining
Screw in compression retreat stop block, driving retreat stop block are compressed and are locked along the bottom of top ontology end face wedge groove, thus in process,
The phenomenon that top ontology can only move along motor shaft side and avoid the occurrence of retrogressing.
Further, the gradient for the contact surface that the retreat stop block is contacted with wedge groove cooperation is 6 ° -8 °, and wedge groove inclines
The length on inclined-plane is greater than the length of retreat stop block inclined surface.The design of wedge block, after retreat stop block compresses top ontology, top ontology
Can only be mobile to motor shaft side, and the length dimension that wedge groove inclined surface is greater than retreat stop block inclined surface is removable stroke, knot
Structure design is rationally ingenious.
Further, the gradient for the contact surface that the retreat stop block is contacted with wedge groove cooperation is 7 °.It is multiple through applicant
The gradient for the contact surface that retreat stop block is contacted with wedge groove cooperation is designed as 7 ° and designed for best gradient, can make retaining by experiment
Block cooperates wedge groove sliding stability.
Further, the lower end of the top ontology offers keyway, is provided with above the keyway for preventing from pushing up
The anti-rotation component of sharp ontology rotation.Along top ontology radial design anti-rotation component, anti-rotation component can effectively prevent top ontology to exist
Morse taper shank is detached from process and is rotated, so that top ontology and Morse taper shank stable connection, effectively control top ontology
Rotation and convenient disassembly.
Further, the anti-rotation component includes anti-turn screw, and correspondence offers lower spiral shell on the side wall of the Morse taper shank
Pit, the external screw thread of the anti-turn screw are matched with the internal screw thread of lower threaded hole, and the anti-turn screw is inserted into lower threaded hole
End and the bottom of keyway offset.Specifically, anti-turn screw is unclamped, after top ontology stretches out ejection hole under the action of the spring,
It is rotated further by anti-turn screw, it is made to extend to lower threaded hole bottom, protrudes into the end of lower threaded hole along top using anti-turn screw
Body radially compresses top ontology, prevents top ontology from loosening and occurs rotating unstable phenomenon.
Further, the deformity folder includes upper V-type clamping plate and lower V-type clamping plate, the upper V-type clamping plate and lower V-type clamping plate
Both ends fixed by screw, the locating bar with deformity folder be fixedly connected.Utilize the recess of upper V-type clamping plate and lower V-type clamping plate
It is clamped in face of motor shaft ends, locating bar connection Morse taper shank and deformity is recycled to press from both sides, motor shaft and Morse may make to bore
Handle rotates under the acting on of external motivating force with step, and locating bar is detachably connected with Morse taper shank, stable connection and disassembly
It is convenient.
Further, the sidewall spacers of the top ontology and Morse taper shank cooperate, and gap value is 0.01mm-
0.02mm。
As described above, the utility model having the beneficial effect that compared with the existing technology:
1, the utility model is relatively set with two groups of top components along motor shaft both ends, using in top component along motor shaft
The sequentially connected top ontology of central axis direction, spring and spring spindle the both ends of motor shaft are held out against, can be along motor
The axial line of axis outer circle central axis carries out effective position compression to it, avoids generating circular runout in process and causing to process
Motor shaft periphery out generates uneven phenomenon.
2, the utility model front end of Morse taper shank in two groups of top components is provided with positioning plate, and two positioning plates can
The end face with motor shaft both ends offsets respectively, guarantees the length dimension of motor shaft in process；Add to can be effectively controlled
The motor shaft that work goes out in the margin of tolerance of setting, improves motor shaft in two processing indexs of length dimension and bounce size
Machining accuracy.
3, the utility model, which is equipped with, prevents top ontology along the retaining component moved far from processing motor shaft side, can be effective
It avoids in part process, the generation for retreating and workpiece case accident occur occurs in top ontology, thus in retaining group
After part positioning and locking, the phenomenon that top ontology can only move along motor shaft side and avoid the occurrence of retrogressing；And retreat stop block and wedge shape
The gradient of the contact surface of slot cooperation contact is preferably designed for 7 °, and retreat stop block can be made to cooperate wedge groove sliding stability.
4, the utility model is prevented equipped with the anti-rotation component having along top ontology radial design for preventing top ontology rotation
Turning component can effectively prevent top ontology to be detached from Morse taper shank in process and rotate, and prevent top ontology from loosening and occurring
Unstable phenomenon is rotated, effectively controls top ontology rotation and convenient disassembly, this is reasonable in design ingenious.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of motor shaft fine turning outer circle floating locating centre mechanism of the utility model；
Fig. 2 is the side view of positioning plate in Fig. 1；
Fig. 3 is the cross-sectional view of positioning plate in Fig. 1；
Fig. 4 is the schematic diagram of top ontology in Fig. 1；
Fig. 5 is the cross-sectional view of A-A in Fig. 4；
Fig. 6 is the lateral sectional view of deformity folder in Fig. 1.
Appended drawing reference: 1- motor shaft, 2- Morse taper shank, 3- positioning plate, 4- installation cavity, the top ontology of 5-, 6- spring, 7- bullet
Spring mandril, 8- eject hole, 9- through-hole, 10- deformity folder, 11- locating bar, 12- guide groove, 13- wedge groove, 14- retreat stop block, 15-
V-type is pressed from both sides under the upper V-type clamping plate of threaded hole, 20-, 21- under stopping screw, 16- upper screwed hole, 17- keyway, 18- anti-turn screw, 19-
Plate.
Specific embodiment
In order to which those skilled in the art better understand the utility model, with reference to the accompanying drawing with following embodiment to this
Utility model is described in further detail.
Embodiment 1
It please refers to shown in Fig. 1, the present embodiment provides a kind of motor shaft fine turning outer circle floating locating centre mechanism, including it is opposite
The top component of 1 left and right ends of motor shaft is set, and every group of top component includes Morse taper shank 2 and be arranged before Morse taper shank 2
The positioning plate 3 at end, the front end of Morse taper shank 2 refer to one end of close motor shaft 1, offer in Morse taper shank 2 horizontally disposed
Installation cavity 4, the central axis direction in installation cavity 4 along motor shaft 1 be connected in turn top ontology 5, spring 6 and with installation cavity 4
The spring spindle 7 that left bottom offsets, specifically, the sidewall spacers of top ontology 5 and Morse taper shank 2 cooperate, and gap value is
0.01mm-0.02mm；And top ontology 5 is quenched using grinding tool steel Cr12MoV, quenching hardness reaches 58-64HRC, guarantees workpiece
Intensity and wearing- in period, the taper of top ontology 5 is in 60 ° of settings.
Preferably, the side of spring 6 is provided with guide groove 12, one end of spring 6 and guide groove 12 in top ontology 5
Bottom be fixedly connected, the other end of spring 6 is fixedly connected with spring spindle 7, and specifically, spring 6 is compressed spring 6, and bullet
The compression direction of spring 6 and the central axial line of motor are on same straight line, and the setting of 5 terminal guide slot 12 of top ontology can
It play the guiding role to the telescopic direction of compressed spring 6.
Further, ejection hole 8 is offered in the front end of Morse taper shank 2, top ontology 5 stretches out and along ejection hole 8 along electricity
The central axial line direction of arbor 1 extends in the axis hole of 1 end of motor shaft；Incorporated by reference to shown in Fig. 2 and Fig. 3, set on positioning plate 3
It is equipped with the through-hole 9 passed through for top ontology 5, and the side of positioning plate 3 being in contact with Morse taper shank 2 is solid by group positioning screw
It is scheduled on Morse taper shank 2, the other side of positioning plate 3 and the end face of motor shaft 1 offset.
The end of 1 left end of motor shaft is provided with deformity folder 10, deformity folder 10 is removable by locating bar 11 and Morse taper shank 2
Connection is unloaded, specifically, is please referred to shown in Fig. 6, deformity folder 10 includes upper V-type clamping plate 20 and lower V-type clamping plate 21, upper V-type clamping plate 20
Passing through one group of screw respectively with the both ends of lower V-type clamping plate 21 to fix, the taper of upper V-type clamping plate 20 and lower V-type clamping plate 21 is 90 °,
And locating bar 11 and deformity folder 10 welding, using the concave face of upper V-type clamping plate 20 and lower V-type clamping plate 21 to 1 end of motor shaft into
Row clamps, and recycles locating bar 11 to connect Morse taper shank 2 and deformity folder 10, motor shaft 1 and Morse taper shank 2 may make to drive in outside
With step rotation under the acting on of power, and locating bar 11 is detachably connected with Morse taper shank 2, stable connection and convenient disassembly.
In the present embodiment, when processing motor shaft 1 using the locating centre mechanism, first by new energy motor shaft to be processed
1 it is stable be clamped between two groups of top components, two groups of top ontologies 5 under the action of compressed spring 6 along ejection hole 8 stretch out simultaneously
Central axial line direction along motor shaft 1 extends in the axis hole of 1 end of motor shaft, can be along the axis of 1 outer circle central axis of motor shaft
Effective position compression is carried out to it to line, avoids generating circular runout in process and causing outside the motor shaft 1 processed
Disc generates uneven phenomenon；At the same time, the positioning plate 3 of 2 front end of Morse taper shank and the end face phase of motor shaft 1 are set
It supports, it can be positioned along the end face of motor shaft 1, it is ensured that the length dimension of motor shaft 1 in process.
In turn, when the Morse taper shank 2 on the left of the driving of external driving mechanism rotates, deformity is passed through by the left end of motor shaft 1
Locating bar 11 on folder 10 and the Morse taper shank 2 on the left of it rotate, to finish to motor shaft 1；Structure design is closed
Reason, can position it along the central axial line of motor shaft 1, can also be right by two positioning plates 3 of two groups of top components
The length of motor shaft 1 is positioned, so that two of the motor shaft 1 processed in length dimension with bounce size can be effectively controlled
Index is processed in the margin of tolerance of setting, improves the machining accuracy of motor shaft 1.
Embodiment 2
Embodiment 2 is substantially the same manner as Example 1, the difference is that: incorporated by reference to shown in Fig. 1, Fig. 4 and Fig. 5, top
The upper surface of ontology 5 offers wedge groove 13, and retaining component is arranged in the top of wedge groove 13, outside top ontology 5 is to motor shaft 1
It after circle center axis is positioned, avoids in process, the hair for retreating and workpiece case accident occur occurs in top ontology 5
It is raw.
Preferably, retaining component includes retreat stop block 14 and stopping screw 15, and correspondence opens up on the side wall of the Morse taper shank 2
There is upper screwed hole 16, the external screw thread of stopping screw 15 is matched with the internal screw thread of upper screwed hole 16, the lower end of retreat stop block 14 and wedge
The cooperation contact of shape slot 13, and the upper end of retreat stop block 14 and the end of stopping screw 15 offset；Specifically, retreat stop block 14 and wedge groove
The gradient of the contact surface of 13 cooperation contacts is 6 ° -8 °, and the length of 13 inclined surface of wedge groove is greater than 14 inclined surface of retreat stop block
Length, the design of wedge block, after retreat stop block 14 compresses top ontology 5, top ontology 5 can only be mobile to 1 side of motor shaft, and
The length dimension that 13 inclined surface of wedge groove is greater than 14 inclined surface of retreat stop block is removable stroke, reasonable in design ingenious.
In the present embodiment, retreat stop block 14 cooperates the gradient of the contact surface contacted to be designed as 7 ° with wedge groove 13, and depth is
2.74mm unclamps stopping screw 15, and top ontology 5 stretches out ejection hole 8 under the action of spring 6, to the axis hole of 1 end of motor shaft
It is held out against, is rotated further by stopping screw 15, and stopping screw 15 compresses retreat stop block 14, drives retreat stop block 14 along top 5 end of ontology
The bottom of face wedge groove 13 compresses and locks, so that top ontology 5 can only be moved along 1 side of motor shaft and be kept away in process
Exempt from the phenomenon that retreating.
Embodiment 3
Embodiment 3 is substantially the same manner as Example 2, the difference is that: incorporated by reference to shown in Fig. 1, Fig. 4 and Fig. 5, top
The lower end of body 5 offers keyway 17, and specifically, the depth of keyway 17 is 8mm, and the top of keyway 17 is provided with top for preventing
The anti-rotation component that ontology 5 rotates；Anti-rotation component includes anti-turn screw 18, and correspondence offers lower screw thread on the side wall of Morse taper shank 2
Hole 19, the external screw thread of anti-turn screw 18 are matched with the internal screw thread of lower threaded hole 19, and anti-turn screw 18 is inserted into lower threaded hole 19
End and the bottom of keyway 17 offset.
In the present embodiment, before processing, anti-turn screw 18 is unclamped, top ontology 5 stretches out ejection hole under the action of spring 6
After 8, it is rotated further by anti-turn screw 18, it is made to extend to lower 19 bottom of threaded hole, protrudes into lower threaded hole 19 using anti-turn screw 18
End compresses top ontology 5 along top 5 radial direction of ontology, prevents top ontology 5 from loosening and occurs rotating unstable show
As；Along top 5 radial design anti-rotation component of ontology in the present embodiment, top ontology 5 can be effectively prevent to be detached from process
Morse taper shank 2 and rotate so that top ontology 5 and 2 stable connection of Morse taper shank, effectively control the top rotation of ontology 5 and dismantle
It is convenient.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model
Structure change similarly should be included in the protection scope of the utility model.
Claims (10)
1. a kind of motor shaft fine turning outer circle floating locating centre mechanism, top group including being oppositely arranged on motor shaft (1) both ends
Part, it is characterised in that: the top component includes the positioning plate (3) of Morse taper shank (2) and setting in Morse taper shank (2) front end,
Installation cavity (4) are offered in the Morse taper shank (2), the central axis direction in installation cavity (4) along motor shaft (1) is sequentially connected
There are top ontology (5), spring (6) and the spring spindle (7) to offset with installation cavity (4) bottom, before the Morse taper shank (2)
End offers ejection hole (8), and the top ontology (5) is stretched out along ejection hole (8) and along the central axial line direction of motor shaft (1)
It extends in the axis hole of motor shaft (1) end, the through-hole (9) passed through for top ontology (5) is provided on the positioning plate (3),
And the side of positioning plate (3) is fixed on Morse taper shank (2) by positioning screw, the other side and motor shaft (1) of positioning plate (3)
End face offset；Motor shaft (1) is provided with deformity folder (10), the deformity folder (10) close to the end of wherein one group of top component
It is detachably connected by locating bar (11) and Morse taper shank (2).
2. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 1, it is characterised in that: the top
Sharp ontology (5) is provided with guide groove (12) close to the side of spring (6), and one end of spring (6) and the bottom of guide groove (12) are solid
Fixed connection, the other end of spring (6) are fixedly connected with spring spindle (7).
3. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 1, it is characterised in that: the top
The upper surface of sharp ontology (5) offers wedge groove (13), and retaining component is arranged in the top of the wedge groove (13).
4. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 3, it is characterised in that: described to stop
Moving back component includes retreat stop block (14) and stopping screw (15), and correspondence offers upper screwed hole on the side wall of the Morse taper shank (2)
(16), the external screw thread of the stopping screw (15) is matched with the internal screw thread of upper screwed hole (16), and the one of the retreat stop block (14)
End is contacted with wedge groove (13) cooperation, and the other end of retreat stop block (14) and the end of stopping screw (15) offset.
5. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 4, it is characterised in that: described to stop
The gradient for moving back the contact surface that block (14) is contacted with wedge groove (13) cooperation is 6 ° -8 °, and the length of wedge groove (13) inclined surface
Greater than the length of retreat stop block (14) inclined surface.
6. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 5, it is characterised in that: described to stop
The gradient for moving back the contact surface that block (14) is contacted with wedge groove (13) cooperation is 7 °.
7. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 1, it is characterised in that: the top
The lower end of sharp ontology (5) offers keyway (17), is provided with above the keyway (17) for preventing top ontology (5) from rotating
Anti-rotation component.
8. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 7, it is characterised in that: described anti-
Turning component includes anti-turn screw (18), and correspondence offers lower threaded hole (19), the anti-rotation on the side wall of the Morse taper shank (2)
The external screw thread of screw (18) is matched with the internal screw thread of lower threaded hole (19), and the anti-turn screw (18) is inserted into lower threaded hole (19)
End and the bottom of keyway (17) offset.
9. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 1, it is characterised in that: described abnormal
Clevis (10) includes upper V-type clamping plate (20) and lower V-type clamping plate (21), and the two of the upper V-type clamping plate (20) and lower V-type clamping plate (21)
End is fixed by screw, and the locating bar (11) is fixedly connected with deformity folder (10).
10. a kind of motor shaft fine turning outer circle floating locating centre mechanism according to claim 1, it is characterised in that: described
The sidewall spacers of top ontology (5) and Morse taper shank (2) cooperate, and gap value is 0.01mm-0.02mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897502.2U CN208408561U (en) | 2018-06-11 | 2018-06-11 | A kind of motor shaft fine turning outer circle floating locating centre mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897502.2U CN208408561U (en) | 2018-06-11 | 2018-06-11 | A kind of motor shaft fine turning outer circle floating locating centre mechanism |
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| CN208408561U true CN208408561U (en) | 2019-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761512A (en) * | 2020-07-07 | 2020-10-13 | 扬州璟晟鑫机械工程科技有限公司 | High-precision high-efficiency convenient novel thimble |
-
2018
- 2018-06-11 CN CN201820897502.2U patent/CN208408561U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761512A (en) * | 2020-07-07 | 2020-10-13 | 扬州璟晟鑫机械工程科技有限公司 | High-precision high-efficiency convenient novel thimble |
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