CN210908883U - Automatic torque adjusting machine for rotating shaft assembly of notebook computer - Google Patents
Automatic torque adjusting machine for rotating shaft assembly of notebook computer Download PDFInfo
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- CN210908883U CN210908883U CN201921283169.7U CN201921283169U CN210908883U CN 210908883 U CN210908883 U CN 210908883U CN 201921283169 U CN201921283169 U CN 201921283169U CN 210908883 U CN210908883 U CN 210908883U
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- 238000001514 detection method Methods 0.000 claims abstract description 57
- 238000003825 pressing Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000020347 spindle assembly Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
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Abstract
A torque automatic adjusting machine for a rotating shaft assembly of a notebook computer comprises a rack and the rotating shaft assembly, wherein the rotating shaft assembly comprises a first part and a second part, the first part is hinged on the second part, a locking part is arranged on the second part and used for tightly pressing a hinged point, a detection point is arranged on the first part, the vertical distance from the detection point to the second part is d, and the torque automatic adjusting machine further comprises a first rotating mechanism, a second rotating mechanism and a force detection mechanism; the first rotating mechanism and the second rotating mechanism are respectively arranged on the rack, the rotating part of the first rotating mechanism is connected to the lower end part of the second component, the rotating part of the second rotating mechanism is connected with the locking part, the force detection mechanism is arranged on the rack, and the detection part of the force detection mechanism is connected to the detection point of the first component. The first rotating mechanism, the second rotating mechanism and the force detection mechanism can automatically adjust and calibrate the torque value, one person can control multiple machines, and the operation efficiency is improved.
Description
Technical Field
The invention relates to the field of torque adjustment, in particular to an automatic torque adjustment machine for a rotating shaft assembly of a notebook computer.
Background
At present, in the notebook computer industry, torque adjustment of a rotating shaft assembly is carried out manually, the work is complicated, and a large number of workers are needed. The torque value is determined according to the factors of a series of parts on the rotating shaft, the tightening force of the disc-shaped elastic pad 4-5 parts, the fixing plate 2 part, the concave wheel 1 part, the cam 1 part, the nut and the like, the grease coating amount and the like. The coefficient between the nut tightening force and the torque is difficult to determine due to mass production, material difference, and the like. At present, manual adjustment is carried out, wherein a torque value is detected firstly, if the torque is large, the nut is loosened a little, if the torque is small, the nut is tightened a little, then testing is carried out, and if the torque is unqualified, adjustment is carried out continuously. Until the set torque value is reached. The automatic adjusting machine researched and developed in the industry at present is also designed according to the idea, and because the coefficient between the torque value and the nut tightening angle cannot be determined and is not constant, the torque value calibrated by adopting the automatic adjusting machine designed by the mode cannot reach the standard, so that the research and development of the automatic adjusting machine in the industry at present are not successful. Many enterprises including taiwan and kunshan have failed to develop.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an automatic torque adjusting machine for a rotating shaft assembly of a notebook computer, and the specific technical scheme is as follows:
the utility model provides an automatic timing machine of pivot subassembly moment of torsion, includes frame (8) and pivot subassembly (1), and this pivot subassembly (1) includes first part and second part, and the first part articulates on the second part, installs the retaining member on the second part, and this retaining member compresses tightly the pin joint, is provided with check point, its characterized in that on the first part: the device also comprises a first rotating mechanism (4), a second rotating mechanism (2) and a force detection mechanism (7);
the first rotating mechanism (4) and the second rotating mechanism (2) are respectively installed on the rack (8), the rotating part of the first rotating mechanism (4) is connected to the lower end part of the second part, and the rotating part of the second rotating mechanism (2) is connected with the locking piece;
the force detection mechanism (7) is arranged on the rack (8), and a detection part of the force detection mechanism (7) is connected with a detection point of the first component;
when the locking mechanism runs, the rotating part of the second rotating mechanism (2) and the rotating part of the first rotating mechanism (4) both rotate, the rotating direction of the second rotating mechanism (2) enables the locking piece to be screwed or loosened, and the rotating direction of the rotating part of the first rotating mechanism (4) is the same as or opposite to that of the second rotating mechanism (2);
if the second rotating mechanism (2) and the first rotating mechanism (4) rotate in the same direction, a rotating speed difference exists between the second rotating mechanism (2) and the first rotating mechanism (4).
Further: a second clamping device (3) is connected to a rotating part of the second rotating mechanism (2), and the second clamping device (3) is a nut sleeve.
Further: the rotating part of the first rotating mechanism (4) and the rotating part of the second rotating mechanism (2) are positioned on the same axis.
Further: the second rotating mechanism (2) comprises a mounting plate (2-1), a sliding seat (2-2), a lifting device (2-3) and a rotating device (2-4);
the bottom of the mounting plate (2-1) is fixed on the rack (8), and the top of the mounting plate (2-1) is provided with the lifting device (2-3);
a guide rail (2-5) is arranged on the surface of the mounting plate (2-1) along the length direction, the sliding seat (2-2) is arranged on the guide rail (2-5), and the sliding seat (2-2) is adapted to the structure of the guide rail (2-5);
the lifting end of the lifting device (2-3) is fixedly connected with the sliding seat (2-2);
the rotating device (2-4) is arranged on the sliding seat (2-2);
and the rotating part of the rotating device (2-4) is the rotating part of the second rotating mechanism (2).
Further: the rotating part of the first rotating mechanism (4) is connected with the clamp device (6) through a connecting piece (5);
the bottom of the connecting piece (5) is connected with the rotating part of the first rotating mechanism (4);
a locking through hole (5-1) is formed between the top and the bottom of the connecting piece (5), a locking bolt is arranged in the locking through hole (5-1), and two first positioning holes (5-2) are formed in the top of the connecting piece (5);
the clamp device (6) is of a block structure, a clamping through hole (6-1) is formed between the top and the bottom of the clamp device (6), and two second positioning holes (6-2) and a threaded hole (6-3) are formed in the bottom of the clamp device (6);
a locking hole (6-4) is formed in the side wall of the clamp device (6), and the locking hole (6-4) is communicated with the clamping through hole (6-1);
the first positioning hole (5-2) is connected with the second positioning hole through a positioning pin;
the tail end of the locking bolt penetrates through a threaded hole (6-3) of the clamp device (6).
Further: the force detection mechanism (7) comprises a mounting bracket (7-1), a tension and pressure sensor (7-2) and a connecting part (7-3);
the mounting bracket (7-1) is mounted on the rack (8), the tension and pressure sensor (7-2) is mounted on the mounting bracket (7-1), one end of the connecting component (7-3) is connected to the detection end of the tension and pressure sensor (7-2), the other end of the connecting component (7-3) is connected to a workpiece detection point, and the connecting component (7-3) is a detection part of the force detection mechanism (7).
The invention has the beneficial effects that: first, the first rotary mechanism, the second rotary mechanism, the power detection mechanism that set up can carry out the timing to the moment of torsion value automatically, and many machines can be controlled alone, have improved operating efficiency.
Second, the need to determine what torque value is required through a precalculation by the control module is avoided. The first rotating mechanism keeps rotating and provides acting force for the first component of the rotating shaft assembly, the force detection mechanism detects the acting force of the detection point of the first component, and the real moment value of the first component relative to the second component is calculated through the perpendicular distance d between the acting force and the detection point and the second component. The real moment value is compared with a preset moment value in real time, and the real moment value is dynamically adjusted through the first rotating mechanism and the second rotating mechanism.
And thirdly, the first rotating mechanism and the second rotating mechanism rotate together to adjust the locking force of the locking part until the torque value of the first part of the rotating shaft assembly relative to the second part reaches a set standard.
Drawings
FIG. 1 is a schematic view of a notebook hinge assembly;
FIG. 2 is a schematic view of the final assembly of the present invention;
FIG. 3 is a schematic view of the connection of the force detection mechanism to the spindle assembly;
FIG. 4 is a schematic structural view of a force detection mechanism;
FIG. 5 is a schematic view of the structure of the clamping device;
FIG. 6 is a schematic structural view of a connector;
the reference numbers in the figures are that a rotating shaft component 1, a rotating bearing frame 1-1, a rotating shaft 1-2, a first fixing plate 1-3, a concave wheel 1-4, a cam 1-5, a disk-shaped elastic pad 1-6, a second fixing plate 1-7, a nut 1-8, a second rotating mechanism 2, a mounting plate 2-1, a sliding seat 2-2, a lifting device 2-3, a rotating device 2-4, a guide rail 2-5, a second clamping device 3, a first rotating mechanism 4, a connecting piece 5, a locking through hole 5-1, a first positioning hole 5-2, a clamping device 6, a clamping through hole 6-1, a second positioning hole 6-2, a threaded hole 6-3, a locking hole 6-4, a force detection mechanism 7, a mounting bracket 7-1, a pull pressure sensor 7-2, A connecting part 7-3, a base 7-31, a detection pull rod 7-32 and a frame 8.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
As shown in figure 1, the rotating shaft assembly 1 comprises a rotating bearing frame 1-1 and a rotating shaft 1-2, the rotating bearing frame 1-1 is hinged on the rotating shaft 1-2, a first fixing plate 1-3, a concave wheel 1-4, a cam 1-5, a disc-shaped elastic cushion 1-6, a second fixing plate 1-7 and a nut 1-8 are sequentially arranged on the upper section of the rotating shaft 1-2 from the hinged position of the rotating bearing frame 1-1 to the top end, and 3 to 5 disc-shaped elastic cushions are adopted according to actual requirements 1-6. The nut 1-8 presses the second fixing plate 1-7 against the hinge by pressing against the adjacent series of parts, the second fixing plate 1-7 provides a friction force against the hinge contact surface of the rotating carrier 1-1, and the rotating carrier 1-1 has a fixed torque value relative to the rotating shaft 1-2 during rotation. The amount of torque force can be adjusted by tightening and loosening the nuts 1-8.
As shown in fig. 2 to 6, an automatic torque adjusting machine for a spindle assembly includes a frame 8, a first rotating mechanism 4, a second rotating mechanism 2, and a force detecting mechanism 7;
the second rotating mechanism 2 comprises a mounting plate 2-1, a sliding seat 2-2, a lifting device 2-3 and a rotating device 2-4;
the bottom of the mounting plate 2-1 is fixed on the frame 8, and the top of the mounting plate 2-1 is provided with a lifting device 2-3 which is a lifting cylinder;
a guide rail 2-5 is arranged on the surface of the mounting plate 2-1 along the length direction, a sliding seat 2-2 is arranged on the guide rail 2-5, the sliding seat 2-2 is matched with the guide rail 2-5 in structure, the lifting end of a lifting device 2-3 is fixedly connected with the sliding seat 2-2, a rotating device 2-4 is arranged on the sliding seat 2-2, the rotating device 2-4 adopts a stepping motor in the embodiment, and the rotating part of the rotating device 2-4 corresponds to the rotating part of a second rotating mechanism 2, and is an output shaft of the stepping motor;
the rotating part of the first rotating mechanism 4 is connected with the clamping device 6 through a connecting piece 5, the bottom of the connecting piece 5 is connected with the rotating part of the first rotating mechanism 4, specifically, the first rotating mechanism 4 is a stepping motor, the connecting piece 5 is of a cylindrical block structure, a connecting hole is formed in the bottom of the connecting piece 5, and an output shaft of the first rotating mechanism 4 penetrates through the connecting hole;
a locking through hole 5-1 is arranged between the bottom and the top of the connecting piece 5, a locking bolt is arranged in the locking through hole 5-1, and two first positioning holes 5-2 are arranged at the top of the connecting piece 5;
the fixture device 6 is of a block structure, a clamping through hole 6-1 is formed between the top and the bottom of the fixture device 6, the clamping through hole 6-1 is used for placing the rotating shaft, and two second positioning holes 6-2 and a threaded hole 6-3 are formed in the bottom of the fixture device 6;
the side wall of the clamp device 6 is provided with a locking hole 6-4, the locking hole 6-4 is communicated with the clamping through hole 6-1, a locking piece penetrates through the locking hole 6-4, and the lower section of the rotating shaft is fixed in the clamping through hole 6-1 by screwing the locking piece;
the first positioning hole 5-2 and the second positioning hole are connected through a positioning pin, the tail end of a locking bolt penetrates through a threaded hole 6-3 of the clamp device 6, and the clamp device 6 is locked at the top of the connecting piece 5 through the locking bolt.
The rotating part of the rotating device 2-4 and the rotating part of the first rotating mechanism 4 are positioned on the same axis;
the force detection mechanism 7 is mounted on the frame 8, and a detection portion of the force detection mechanism 7 is connected to a detection point of the workpiece.
A second clamping device 3 is connected to the rotating part of the second rotating mechanism 2, and the second clamping device 3 is a nut socket.
The force detection mechanism 7 comprises a mounting bracket 7-1, a tension and pressure sensor 7-2 and a connecting part 7-3;
the mounting bracket 7-1 is mounted on the frame 8, the tension and pressure sensor 7-2 is mounted on the mounting bracket 7-1, one end of the connecting component 7-3 is connected with the detection end of the tension and pressure sensor 7-2, the connecting component 7-3 comprises a base 7-31 and a detection pull rod 7-32, one end of the base 7-31 is connected with the detection end of the tension and pressure sensor 7-2, the other end of the base 7-31 is connected with one end of the detection pull rod 7-32, the other end of the detection pull rod 7-32 is provided with a notch, and the notch is clamped at the detection point of the rotary bearing frame 1-1.
The working principle of the invention is as follows: the rotating shaft is placed in the clamping through hole 6-1 of the clamping device 6, and the lower section of the rotating shaft 1-2 is fixed in the clamping through hole 6-1 by screwing the locking device. The notch on the detection pull rod 7-32 is clamped on the detection point of the rotary bearing frame 1-1. The tension and pressure sensor 7-2 transmits the detected force value to the control module, the control module multiplies the detected force value by the vertical distance d to obtain a detected torque value, and the detected torque value is compared with the standard torque value. When the detected torque value is smaller than the standard torque value, the rotating part of the rotating device 2-4 and the rotating part of the first rotating mechanism 4 both rotate, the rotating direction of the second rotating mechanism 2 enables the locking piece to be screwed, the rotating direction of the rotating part of the first rotating mechanism 4 can be the same as or opposite to the rotating direction of the rotating part of the second rotating mechanism 2, if the second rotating mechanism 2 and the first rotating mechanism 4 rotate in the same direction, a rotating speed difference must exist between the second rotating mechanism 2 and the first rotating mechanism 4, and the first rotating mechanism 4 can only screw the nuts 1-8.
The reason why the rotating part of the first rotating mechanism 4 must drive the rotating shaft to rotate is that the second fixing plate 1-7 presses the hinge joint due to the nut 1-8 pressing a series of adjacent parts, the second fixing plate 1-7 provides a friction force to the hinge contact surface of the rotating bearing frame 1-1, and the force detecting mechanism 7 can detect the real acting force on the rotating bearing frame 1-1 during the rotation of the rotating shaft relative to the rotating bearing frame 1-1.
In this embodiment, the rotating portions of the rotating devices 2 to 4 and the rotating portions of the first rotating mechanism 4 rotate in the same direction, and there is a difference in rotational speed between the rotating portions of the first rotating mechanism 4 and the rotating portions of the rotating devices 2 to 4.
When the detected torque value is smaller than the standard torque value, the rotating part of the second rotating mechanism 2 and the rotating part of the first rotating mechanism 4 both rotate, the rotating direction of the second rotating mechanism 2 enables the locking member to be released, the rotating direction of the rotating part of the first rotating mechanism 4 is the same as or opposite to that of the second rotating mechanism 2, and if the second rotating mechanism 2 and the first rotating mechanism 4 rotate in the same direction, a rotating speed difference exists between the rotating part of the second rotating mechanism 2 and the rotating part of the first rotating mechanism 4. In the present embodiment, the rotating portion of the second rotating mechanism 2 and the rotating portion of the first rotating mechanism 4 rotate in the same direction.
Until the detected torque value is the same as the standard torque value, the rotation of the rotating part of the second rotating mechanism 2 and the rotation of the rotating part of the first rotating mechanism 4 are stopped, and the calibration is completed.
A working method of a rotating shaft assembly torque automatic adjusting machine is characterized in that a rotating shaft assembly 1 comprises a first part and a second part, the first part is hinged on the second part, a locking piece is installed on the second part and used for pressing the hinged point, a detection point is arranged on the first part, and the vertical distance from the detection point to the second part is d. In this embodiment, the rotating shaft assembly 1 is a notebook rotating shaft assembly 1, the second component is a rotating shaft 1-2, the first component is a rotating bearing frame 1-1, the locking component is a nut 1-8, and a first fixing plate 1-3, a concave wheel 1-4, a cam 1-5, a disk-shaped elastic pad 1-6 and a second fixing plate 1-7 are sequentially arranged between a hinge point and the nut 1-8 on the rotating shaft 1-2. The first rotating mechanism 4 is a stepping motor, the rotating part of the first rotating mechanism 4 is a rotating shaft of the stepping motor, the rotating part of the second rotating mechanism 2 is a rotating shaft of the rotating device 2-4, and the rotating device 2-4 also adopts a motor.
The method comprises the following steps:
s1: the rotating part of the first rotating mechanism 4 is connected with the lower end of the rotating shaft 1-2;
s2: the rotating part of the second rotating mechanism 2 is connected to the nuts 1-8 through a second clamping device 3, here a nut sleeve;
s3: the force detection mechanism 7 collects the force value of a detection point on the rotary bearing frame 1-1 in real time;
s4: a standard torque value is set in the control module, and the force detection mechanism 7 transmits the acquired force value to the control module;
s5: the control module multiplies the numerical value of the detection force by the vertical distance d to obtain a detection torque value, and compares the detection torque value with a standard torque value;
if the detected torque value is smaller than the standard torque value, entering S6;
if the detected torque value is larger than the standard torque value, entering S7;
if the detected torque value is equal to the standard torque value, proceeding to S8;
s6: the rotating portion of the second rotating mechanism 2 and the rotating portion of the first rotating mechanism 4 both rotate in the same direction, and the rotating direction causes the nuts 1 to 8 to be screwed, and a difference in rotational speed exists between the rotating portion of the second rotating mechanism 2 and the rotating portion of the first rotating mechanism 4, and the process returns to S4;
s7: the rotating portion of the second rotating mechanism 2 and the rotating portion of the first rotating mechanism 4 both rotate, and the rotating direction causes the nuts 1-8 to be loosened, and a difference in rotational speed exists between the rotating portion of the second rotating mechanism 2 and the rotating portion of the first rotating mechanism 4, and the process returns to S4;
s8: the rotation of the rotating part of the second rotating mechanism 2 and the rotation of the rotating part of the first rotating mechanism 4 are both stopped, and the adjustment is completed.
Claims (6)
1. The utility model provides an automatic timing machine of notebook pivot subassembly moment of torsion, includes frame (8) and pivot subassembly (1), and this pivot subassembly (1) includes first part and second part, and the first part articulates on the second part, installs the retaining member on the second part, and this retaining member compresses tightly the pin joint, is provided with the check point on the first part, and the vertical distance of this check point to the second part is d, its characterized in that: the device also comprises a first rotating mechanism (4), a second rotating mechanism (2) and a force detection mechanism (7);
the first rotating mechanism (4) and the second rotating mechanism (2) are respectively installed on the rack (8), the rotating part of the first rotating mechanism (4) is connected to the lower end part of the second part, and the rotating part of the second rotating mechanism (2) is connected with the locking piece;
the force detection mechanism (7) is arranged on the rack (8), and a detection part of the force detection mechanism (7) is connected with a detection point of the first component;
during adjustment, the rotating part of the second rotating mechanism (2) and the rotating part of the first rotating mechanism (4) both rotate, the rotating direction of the second rotating mechanism (2) enables the locking piece to be screwed or unscrewed, and the rotating direction of the rotating part of the first rotating mechanism (4) is the same as or opposite to that of the second rotating mechanism (2);
if the second rotating mechanism (2) and the first rotating mechanism (4) rotate in the same direction, a rotating speed difference exists between the second rotating mechanism (2) and the first rotating mechanism (4).
2. The automatic torque adjusting machine for the rotating shaft assembly of the notebook computer as claimed in claim 1, wherein:
a second clamping device (3) is connected to a rotating part of the second rotating mechanism (2), and the second clamping device (3) is a nut sleeve.
3. The automatic torque adjusting machine for the rotating shaft assembly of the notebook computer as claimed in claim 1, wherein: the rotating part of the first rotating mechanism (4) and the rotating part of the second rotating mechanism (2) are positioned on the same axis.
4. The automatic torque adjusting machine for the rotating shaft assembly of the notebook computer as claimed in claim 1, wherein:
the second rotating mechanism (2) comprises a mounting plate (2-1), a sliding seat (2-2), a lifting device (2-3) and a rotating device (2-4);
the bottom of the mounting plate (2-1) is fixed on the rack (8), and the top of the mounting plate (2-1) is provided with the lifting device (2-3);
a guide rail (2-5) is arranged on the surface of the mounting plate (2-1) along the length direction, the sliding seat (2-2) is arranged on the guide rail (2-5), and the sliding seat (2-2) is adapted to the structure of the guide rail (2-5);
the lifting end of the lifting device (2-3) is fixedly connected with the sliding seat (2-2);
the rotating device (2-4) is arranged on the sliding seat (2-2);
and the rotating part of the rotating device (2-4) is the rotating part of the second rotating mechanism (2).
5. The automatic torque adjusting machine for the rotating shaft assembly of the notebook computer as claimed in claim 1, wherein: the rotating part of the first rotating mechanism (4) is connected with the clamp device (6) through a connecting piece (5);
the bottom of the connecting piece (5) is connected with the rotating part of the first rotating mechanism (4);
a locking through hole (5-1) is formed between the top and the bottom of the connecting piece (5), a locking bolt is arranged in the locking through hole (5-1), and two first positioning holes (5-2) are formed in the top of the connecting piece (5);
the clamp device (6) is of a block structure, a clamping through hole (6-1) is formed between the top and the bottom of the clamp device (6), and two second positioning holes (6-2) and a threaded hole (6-3) are formed in the bottom of the clamp device (6);
a locking hole (6-4) is formed in the side wall of the clamp device (6), and the locking hole (6-4) is communicated with the clamping through hole (6-1);
the first positioning hole (5-2) is connected with the second positioning hole through a positioning pin;
the tail end of the locking bolt penetrates through a threaded hole (6-3) of the clamp device (6).
6. The automatic torque adjusting machine for the rotating shaft assembly of the notebook computer as claimed in claim 1, wherein: the force detection mechanism (7) comprises a mounting bracket (7-1), a tension and pressure sensor (7-2) and a connecting part (7-3);
the mounting bracket (7-1) is mounted on the rack (8), the tension and pressure sensor (7-2) is mounted on the mounting bracket (7-1), one end of the connecting component (7-3) is connected to the detection end of the tension and pressure sensor (7-2), the other end of the connecting component (7-3) is connected to a workpiece detection point, and the connecting component (7-3) is a detection part of the force detection mechanism (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283169.7U CN210908883U (en) | 2019-08-08 | 2019-08-08 | Automatic torque adjusting machine for rotating shaft assembly of notebook computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283169.7U CN210908883U (en) | 2019-08-08 | 2019-08-08 | Automatic torque adjusting machine for rotating shaft assembly of notebook computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210908883U true CN210908883U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921283169.7U Expired - Fee Related CN210908883U (en) | 2019-08-08 | 2019-08-08 | Automatic torque adjusting machine for rotating shaft assembly of notebook computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210908883U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449875A (en) * | 2019-08-08 | 2019-11-15 | 重庆麟麟科技有限公司 | Laptop rotating shaft component torque Self-regulation track machine and its working method |
| CN110449875B (en) * | 2019-08-08 | 2024-07-30 | 重庆宏欣五金制品有限公司 | Automatic torque adjusting machine for notebook rotating shaft assembly and working method thereof |
-
2019
- 2019-08-08 CN CN201921283169.7U patent/CN210908883U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449875A (en) * | 2019-08-08 | 2019-11-15 | 重庆麟麟科技有限公司 | Laptop rotating shaft component torque Self-regulation track machine and its working method |
| CN110449875B (en) * | 2019-08-08 | 2024-07-30 | 重庆宏欣五金制品有限公司 | Automatic torque adjusting machine for notebook rotating shaft assembly and working method thereof |
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