CN215598594U - Bolt and nut tightening torque testing mechanism - Google Patents
Bolt and nut tightening torque testing mechanism Download PDFInfo
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- CN215598594U CN215598594U CN202121829060.6U CN202121829060U CN215598594U CN 215598594 U CN215598594 U CN 215598594U CN 202121829060 U CN202121829060 U CN 202121829060U CN 215598594 U CN215598594 U CN 215598594U
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Abstract
The utility model provides a bolt and nut tightening torque testing mechanism which is simple in structure, rapid and convenient to test and high in testing precision. It includes: a torque displacement acquisition unit; it comprises a displacement sensor and a torsion sensor; a nut clamping unit including an upper torque transmitting end, a lower nut clamping part, a bolt clamping unit including an upper bolt clamping part, a lower rotation input part; a rotation driving unit; a first mounting bracket; the first mounting rack is a vertical mounting rack, and a movable mounting board is arranged on the front surface area of the first mounting rack; the torque sensor and the nut clamping unit are fixedly arranged on the movable mounting plate, the movable mounting plate is vertically movably arranged on the front surface area of the first mounting frame, the rear surface area of the first mounting frame is provided with a pressure balance block, the pressure balance block is hoisted on the upper portion of the movable mounting plate through a connecting wire, the lower input end of the torque sensor is connected with the upper end of a clutch, and the lower end of the clutch is connected with an upper torque transmission end.
Description
Technical Field
The utility model relates to the technical field of copper foil conveying, in particular to a bolt and nut tightening torque testing mechanism.
Background
During the assembly process of the bolt and the nut, torque testing is required so as to obtain the optimal torque and carry out subsequent batch production; when the existing bolt and nut is used for torque testing, the structure is complex, so that the testing cost is high, and therefore a mechanism with reliable performance for quickly detecting the torque is urgently needed.
Disclosure of Invention
Aiming at the problems, the utility model provides a bolt and nut tightening torque testing mechanism which is simple in structure, quick and convenient to test and high in testing precision.
The utility model provides a bolt and nut screws up torque testing mechanism which characterized in that, it includes:
a torque displacement acquisition unit; it comprises a displacement sensor and a torsion sensor;
a nut clamping unit including an upper torsion transmitting end and a lower nut clamping portion
A bolt clamping unit including an upper bolt clamping portion and a lower rotation input portion;
a rotation driving unit;
a first mounting bracket;
the first mounting rack is a vertical mounting rack, and a movable mounting plate is arranged on the front surface area of the first mounting rack;
the torque sensor and the nut clamping unit are fixedly arranged on the movable mounting plate, the movable mounting plate is vertically movably arranged on the front surface area of the first mounting frame, the rear surface area of the first mounting frame is provided with a pressure balance block, the pressure balance block is hoisted on the upper portion of the movable mounting plate through a connecting wire, the lower input end of the torque sensor is connected with the upper end of a clutch, and the lower end of the clutch is connected with the upper torque transmission end;
the displacement sensor is fixedly arranged at the upper part of the first mounting frame, and an induction ruler of the displacement sensor is in sensing connection with the movable mounting plate;
the bolt clamping unit is fixedly arranged in the height direction, and the upper bolt clamping part is arranged under the lower nut clamping part in a centering manner;
a rotary drive unit is disposed directly below the lower rotation input portion.
It is further characterized in that:
the rotary driving unit comprises a second mounting frame, a lifting movable frame, a driving motor and a rotary output end, the rotary output end is mounted at the upper part of the lifting movable frame, the driving motor is fixedly mounted at the lower part of the lifting movable frame, the output end of the driving motor is connected with the rotary output end, the lifting movable frame is connected with the second mounting frame through a guide rail pair structure, a lifting cylinder is further arranged on the second mounting frame, the output end of the lifting cylinder is connected with the lifting movable frame, and the lifting cylinder drives the lifting movable frame to lift;
the rotary output end is even provided with an upward convex double PIN needle, the lower rotary input part is correspondingly provided with an inward concave positioning groove, and the rotary output end is inserted into the corresponding inward concave positioning groove through the double PIN needle to finish accurate rotary output;
the lower nut clamping part and the upper bolt clamping part are both of clamping jaw clamping structures, so that the centering performance is good, and the clamping is stable and reliable;
guide rail grooves are respectively formed in two sides of the back face of the movable mounting plate, corresponding first guide rails are arranged on two sides of the front face area of the first mounting frame, the guide rail grooves are embedded in the corresponding first guide rail arrangement, a vertical driving module is fixedly mounted on the first mounting frame, the output end of the vertical driving module is fixedly connected with the movable mounting plate, the vertical driving module drives the movable mounting plate to integrally lift, and then the nut clamping unit is driven to lift and move relative to the bolt clamping unit;
the vertical driving module is specifically a vertical driving cylinder, and the movable mounting plate is integrally moved downwards by providing a weak driving example for the vertical driving cylinder, so that the influence of external force on the system in the test process is reduced as much as possible;
the balance pressure blocks are two, each balance pressure block corresponds to one group of connecting wires, one end of each connecting wire is fixedly connected with the balance pressure block, the other end of each connecting wire is fixedly connected with the corresponding position of the movable mounting plate after being turned by the guide wheel set, and the balance pressure blocks balance the weight of all objects on the movable mounting plate.
After the technical scheme is adopted, the corresponding nut comprises a sleeve clamping end, the head of the bolt is clamped by an upper bolt clamping part, the nut is clamped by a lower nut clamping part, then the mounting plate is moved downwards to enable the nut to translate to be right above the bolt, then the rotary driving unit is in butt joint with a lower rotary input part of the bolt clamping unit and drives the mounting plate to rotate downwards, the rotary driving unit drives the bolt clamping unit to rotate at a high speed, meanwhile, the nut clamping unit descends, the displacement sensor judges a collecting position, and a torque sensor is used for collecting the torque of the whole screwing process; after combination, the clutch automatically slips and is separated, a split type screwing rotation torque displacement test is adopted, the clutch can be used for synchronous test on a multi-station turntable, a rotation driving unit at the lower part and a test unit at the upper part are respectively and independently adapted, the test unit solves the problems of external acting force of a large mechanism and difficulty in product centering, the measurement of precise torque (0.05N.cm) is realized, and the influence of the appearance of a product is avoided; the device has the advantages of simple structure, quick and convenient test and high test precision.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the connective portion of the clutch of the present invention;
FIG. 3 is a perspective view of the lower nut holding portion of the present invention;
FIG. 4 is a schematic cross-sectional view of the nut holding unit of the present invention;
FIG. 5 is a perspective view of the upper bolt clamping portion of the present invention;
FIG. 6 is a schematic cross-sectional view of the bolt clamping unit of the present invention;
FIG. 7 is a perspective view of the rotary drive unit of the present invention;
FIG. 8 is a cross-sectional view of the rotary drive unit and the bolt clamping unit of the present invention in butt joint;
the names corresponding to the sequence numbers in the figure are as follows:
the torque displacement acquisition unit 10, the displacement sensor 11, the induction ruler 111, the sensing body 112, the torque sensor 12, the nut clamping unit 20, the upper torque transmission end 21, the lower nut clamping portion 22, the bolt clamping unit 30, the upper bolt clamping portion 31, the lower rotation input portion 32, the rotation driving unit 40, the second mounting frame 41, the lifting movable frame 42, the driving motor 43, the rotation output end 44, the double PIN needle 441, the guide rail auxiliary structure 45, the lifting cylinder 46, the avoidance hole 47, the first mounting frame 50, the first guide rail 51, the movable mounting plate 60, the pressure balance block 70, the connecting line 80, the clutch 90, the vertical driving module 100, the guide wheel set 110, the front guide wheel 101, the rear guide wheel 102, the supporting frame 103, the nut 200 and the bolt 300.
Detailed Description
A bolt and nut tightening torque testing mechanism is shown in figures 1-8 and comprises a torque displacement acquisition unit 10, a nut clamping unit 20, a bolt clamping unit 30 and a rotary driving unit 40;
the torque displacement acquisition unit 10 comprises a displacement sensor 11 and a torsion sensor 12;
the nut holding unit 20 includes an upper torsion transmitting terminal 21, a lower nut holding portion 22;
the bolt clamping unit 30 includes an upper bolt clamping portion 31, a lower rotation input portion 32;
the first mounting rack 50 is a vertical mounting rack, and a movable mounting plate 60 is arranged on the front surface area of the first mounting rack 50;
the torque sensor 11 and the nut clamping unit 20 are fixedly arranged on the movable mounting plate 60, the movable mounting plate 60 is vertically movably arranged on the front surface area of the first mounting frame 50, the rear surface area of the first mounting frame 50 is provided with a pressure balance block 70, the pressure balance block 70 is hoisted on the upper part of the movable mounting plate 60 through a connecting wire 80, the lower input end of the torque sensor 11 is connected with the upper end of a clutch 90, and the lower end of the clutch 90 is connected with an upper torque transmission end 21 of the nut clamping unit;
the displacement sensor 11 is fixedly arranged at the upper part of the first mounting frame, and the induction ruler 111 of the displacement sensor 11 is in sensing connection with the movable mounting plate 60;
the bolt clamping unit 30 is fixedly arranged in the height direction, and the upper bolt clamping portion 31 is arranged in the center right below the lower nut clamping portion 22;
a rotation driving unit 40 is disposed directly below the lower rotation input portion 32.
The rotation driving unit 40 includes a second mounting frame 41, a lifting movable frame 42, a driving motor 43, and a rotation output end 44, the rotation output end 44 is installed on the upper portion of the lifting movable frame 42, the driving motor 43 is fixedly installed on the lower portion of the lifting movable frame 41, the output end of the driving motor 43 is connected with the rotation output end 44, the lifting movable frame 42 is connected with the second mounting frame 41 through a guide rail pair structure 45, a lifting cylinder 46 is further arranged on the second mounting frame 41, the output end of the lifting cylinder 46 is connected with the lifting movable frame 42, and the lifting cylinder 46 drives the lifting movable frame 42 to move up and down. During specific implementation, two sides of the lifting movable frame 42 are respectively connected with corresponding side guide rails of the second mounting frame 41 through guide rail pair structures 45, the lifting cylinders 46 are fixedly mounted at the bottom positions of the two sides of the second mounting frame 41, the upper piston ends of the two lifting cylinders 46 are respectively top-mounted at corresponding positions of a bottom plate of the lifting movable frame 42, avoidance holes 47 are formed in the positions, corresponding to the driving motors 43, of the bottom plate, and during specific work, the two lifting cylinders 46 perform synchronous lifting operation.
In the specific implementation:
the rotary output end 44 is even provided with a double PIN 441 protruding upwards, the lower rotary input part 32 is correspondingly provided with an inwards concave positioning groove (shielded in the figure and belonging to the existing mature positioning technology), and the rotary output end 44 is inserted into the corresponding inwards concave positioning groove through the double PIN 441 to complete accurate rotary output;
the lower nut clamping part 22 and the upper bolt clamping part 31 are both of a three-jaw clamping structure, so that the centering performance is good, and the clamping is stable and reliable;
guide rail grooves are respectively formed in two sides of the back surface of the movable mounting plate 60, corresponding first guide rails 51 are arranged on two sides of the front surface area of the first mounting frame 50, the guide rail grooves are embedded in the corresponding first guide rails 51 for arrangement, a vertical driving module 100 is further fixedly mounted on the first mounting frame 50, the output end of the vertical driving module 100 is fixedly connected with the movable mounting plate 60, the vertical driving module 100 drives the movable mounting plate 60 to integrally lift, and then the nut clamping unit 20 is driven to lift and move relative to the bolt clamping unit 30;
the vertical driving module 100 is specifically a vertical driving cylinder, and the moving mounting plate is integrally moved downwards by providing a weak driving example for the vertical driving cylinder, so that the influence of an external force on the system in the test process is reduced as much as possible;
the number of the balance pressure blocks 70 is two, each balance pressure block 70 corresponds to one group of connecting lines 80, one end of each connecting line 80 is fixedly connected with the balance pressure block 70, the other end of each connecting line 80 is fixedly connected with the corresponding position of the movable mounting plate 60 after being turned by the guide wheel set 110, and the balance pressure blocks 70 balance the weight of all objects on the movable mounting plate 60; the guide wheel set 100 comprises a front guide wheel 101, a rear guide wheel 102 and a corresponding support frame 103, so that smooth guiding is ensured;
a sensing body 112 of the displacement sensor 11 is fixedly arranged at the upper part of the middle part of the first mounting frame 50, an induction ruler 111 of the displacement sensor 11 penetrates through the sensing body 112, and the lower part of the induction ruler 111 is fixedly connected with the movable mounting plate 60; when torque testing needs to be performed on a certain type of bolt 300 and nut 200, the zero position of the displacement sensor 11 is preset according to the height of the bolt 300, after the bolt 300 and the nut 200 are respectively clamped in place, the sensing ruler 111 of the displacement sensor 11 is driven to descend to the zero position by the vertical driving cylinder, then subsequent testing operation is performed, and the reading of the displacement sensor 11 after the zero position is the displacement reading.
The working principle is as follows: the corresponding nut comprises a sleeve clamping end, the head of the bolt is clamped by an upper bolt clamping part, the nut is clamped by a lower nut clamping part, then the mounting plate is moved downwards to enable the nut to move horizontally to be right above the bolt, then the rotary driving unit is in butt joint with a lower rotary input part of the bolt clamping unit and drives the bolt to rotate, the mounting plate is moved downwards to drive the bolt clamping unit to rotate at a high speed, meanwhile, the nut clamping unit descends, the displacement sensor judges a collecting position, and a torque sensor is used for collecting the torque in the whole screwing process; after combination, the clutch automatically slips and is separated, a split type screwing rotation torque displacement test is adopted, the clutch can be used for synchronous test on a multi-station turntable, a rotation driving unit at the lower part and a test unit at the upper part are respectively and independently adapted, the test unit solves the problems of external acting force of a large mechanism and difficulty in product centering, the measurement of precise torque (0.05N.cm) is realized, and the influence of the appearance of a product is avoided; the device has the advantages of simple structure, quick and convenient test and high test precision.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a bolt and nut screws up torque testing mechanism which characterized in that, it includes:
a torque displacement acquisition unit; it comprises a displacement sensor and a torsion sensor;
a nut clamping unit including an upper torsion transmitting end and a lower nut clamping portion
A bolt clamping unit including an upper bolt clamping portion and a lower rotation input portion;
a rotation driving unit;
a first mounting bracket;
the first mounting rack is a vertical mounting rack, and a movable mounting plate is arranged on the front surface area of the first mounting rack;
the torque sensor and the nut clamping unit are fixedly arranged on the movable mounting plate, the movable mounting plate is vertically movably arranged on the front surface area of the first mounting frame, the rear surface area of the first mounting frame is provided with a pressure balance block, the pressure balance block is hoisted on the upper portion of the movable mounting plate through a connecting wire, the lower input end of the torque sensor is connected with the upper end of a clutch, and the lower end of the clutch is connected with the upper torque transmission end;
the displacement sensor is fixedly arranged at the upper part of the first mounting frame, and an induction ruler of the displacement sensor is in sensing connection with the movable mounting plate;
the bolt clamping unit is fixedly arranged in the height direction, and the upper bolt clamping part is arranged under the lower nut clamping part in a centering manner;
a rotary drive unit is disposed directly below the lower rotation input portion.
2. The bolt and nut tightening torque testing mechanism of claim 1, wherein: the rotary driving unit comprises a second mounting frame, a lifting movable frame, a driving motor and a rotary output end, the rotary output end is installed on the upper portion of the lifting movable frame, the driving motor is fixedly installed on the lower portion of the lifting movable frame, the output end of the driving motor is connected with the rotary output end, the lifting movable frame is connected with the second mounting frame through a guide rail pair structure, a lifting cylinder is further arranged on the second mounting frame, the output end of the lifting cylinder is connected with the lifting movable frame, and the lifting cylinder drives the lifting movable frame to lift.
3. The bolt and nut tightening torque testing mechanism of claim 2, wherein: the rotary output end is even provided with a double PIN needle protruding upwards, and the lower rotary input part is correspondingly provided with an inwards concave positioning groove.
4. The bolt and nut tightening torque testing mechanism of claim 1, wherein: and the lower nut clamping part and the upper bolt clamping part are both clamping jaw clamping structures.
5. The bolt and nut tightening torque testing mechanism of claim 1, wherein: the back both sides of removing the mounting panel are provided with the guide rail groove respectively, the anterior face territory both sides of first mounting bracket are provided with corresponding first guide rail, the guide rail groove inlays and is equipped with in corresponding first guide rail arranges, still be equipped with perpendicularly on the first mounting bracket and drive the module perpendicularly, perpendicularly to the output rigid coupling of drive the module remove the mounting panel.
6. The bolt and nut tightening torque testing mechanism of claim 5, wherein: the vertical driving module is specifically a vertical driving cylinder.
7. The bolt and nut tightening torque testing mechanism of claim 1, wherein: the number of the balance pressure blocks is two, each balance pressure block is provided with a group of connecting lines correspondingly, one end of each connecting line is fixedly connected with the balance pressure block, and the other end of each connecting line is fixedly connected with the corresponding position of the movable mounting plate after being turned by the guide wheel set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121829060.6U CN215598594U (en) | 2021-08-06 | 2021-08-06 | Bolt and nut tightening torque testing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121829060.6U CN215598594U (en) | 2021-08-06 | 2021-08-06 | Bolt and nut tightening torque testing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215598594U true CN215598594U (en) | 2022-01-21 |
Family
ID=79880353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121829060.6U Active CN215598594U (en) | 2021-08-06 | 2021-08-06 | Bolt and nut tightening torque testing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215598594U (en) |
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2021
- 2021-08-06 CN CN202121829060.6U patent/CN215598594U/en active Active
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