CN108020364B - Double-wall cross-bending special-shaped spring clamp clamping force testing device - Google Patents
Double-wall cross-bending special-shaped spring clamp clamping force testing device Download PDFInfo
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- CN108020364B CN108020364B CN201711245820.7A CN201711245820A CN108020364B CN 108020364 B CN108020364 B CN 108020364B CN 201711245820 A CN201711245820 A CN 201711245820A CN 108020364 B CN108020364 B CN 108020364B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0057—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to spring-shaped elements
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Abstract
A double-wall cross-bending special-shaped spring clamp clamping force testing device relates to a machining process device. The invention aims to solve the problem that the existing testing means can not realize direct testing of the clamping force of the double-wall cross-bending special-shaped spring clamp. The invention comprises a base assembly, a stress application mechanism assembly, a lifting mechanism assembly and a connecting rod mechanism assembly, wherein the base assembly comprises a rear upright post, a base, a front upright post and a guide plate, the stress application mechanism assembly comprises a lower force measuring block, a connecting rod, an upper force measuring block, a hook and force measuring steel bars, the lifting mechanism assembly comprises a supporting plate, a supporting plate pull rod and a connecting rod, the connecting rod mechanism assembly comprises an upper beam, a connecting beam, a lower beam and a handle, the upper end of the force measuring steel bars is clamped by a tested double-wall crossed bending special-shaped spring clamp, and the tested double-wall crossed bending special-shaped spring clamp is lifted upwards under the combined action of the lifting mechanism assembly and the connecting rod mechanism assembly, so that the test purpose is realized. The invention is used for testing the clamping force of the double-wall cross-bending special-shaped spring clamp.
Description
Technical Field
The invention relates to a machining process device, in particular to a double-wall cross-bending special-shaped spring clamp clamping force testing device.
Background
The double-wall cross bending special-shaped spring clamp is used for clamping the end head of the steel bar, the steel bar is used for locking and unlocking the safety device, the steel bar passes through the safety device to be used for locking an unlocking hole, and then the double-wall cross bending special-shaped spring clamp is used for clamping, so that the safety device is ensured to be locked; when the safety device is unlocked, steel bars are required to be pulled out of the unlocking holes and the double-wall crossed bending special-shaped spring clamps, the working performance of the double-wall crossed bending special-shaped spring clamps is required to be within a specified range, the required clamping force is 5-10 kg, if the clamping force of the double-wall crossed bending special-shaped spring clamps is too small and is less than 5kg, the steel bars for locking are easy to be pulled out of the safety device by themselves to generate accidents, and if the clamping force of the double-wall crossed bending special-shaped spring clamps is too large and is more than 10kg, the steel bars for locking cannot be pulled out of the safety device to cause product failure, so that the clamping force of the double-wall crossed bending special-shaped spring clamps is required to be tested, the qualified rear part can be used for products, and the conventional testing means are very inconvenient in test, and the direct test of the clamping force of the double-wall crossed bending special-shaped spring clamps cannot be realized.
Disclosure of Invention
The invention aims to solve the problem that the existing testing means can not realize direct testing of the clamping force of a double-wall cross-bending special-shaped spring clamp, and further provides a double-wall cross-bending special-shaped spring clamp clamping force testing device.
The technical scheme adopted for solving the technical problems is as follows:
the double-wall crossed bending special-shaped spring clamp clamping force testing device comprises a base assembly, a stress application mechanism assembly, a lifting mechanism assembly and a connecting rod mechanism assembly, wherein the base assembly comprises a rear upright post, a base, a front upright post and a guide plate, the stress application mechanism assembly comprises a lower force measuring block, a connecting rod, an upper force measuring block, a hook and force measuring steel bars, the lifting mechanism assembly comprises a supporting plate, a supporting plate pull rod and a connecting rod, the connecting rod mechanism assembly comprises an upper beam, a connecting beam, a lower beam and a handle,
the rear upright post is vertically and fixedly connected to the rear side of the upper end face of the base, the front upright post is vertically and fixedly connected to the front side of the upper end face of the base and is arranged right in front of the rear upright post, the rear end of the guide plate is sleeved on the outer side of the upper end of the front upright post, the middle part of the upper beam is hinged with the top end of the front upright post, the rear end of the lower beam is hinged with the top end of the rear upright post, the upper end of the connecting beam is hinged with the rear end of the upper beam, the lower end of the connecting beam is hinged with the middle part of the lower beam, the front end of the upper beam is hinged with the upper end of the connecting rod, the lower end of the connecting rod is hinged with the upper end of the supporting plate pull rod, the supporting plate pull rod is vertically inserted in the front end of the guide plate, the lower end of the supporting plate pull rod is vertically and fixedly connected with the rear end of the supporting plate, the lower force measuring block is arranged right in front of the front upright post, the upper force measuring block is arranged right above the lower force measuring block, a counter bore is formed in the middle of the lower end of the lower force measuring block along the vertical direction, the connecting rod penetrates through the bottom of the counter bore, the upper end of the connecting rod is fixedly connected with the middle of the lower end of the upper force measuring block, the lower end of the connecting rod is clamped in the counter bore and is slidingly connected with the middle of the upper end of the upper force measuring block along the depth direction of the counter bore, the upper end of the hook is connected with the lower end of the force measuring steel bar in a hanging mode, the upper end of the force measuring steel bar penetrates through the front end of the supporting plate and is clamped by the double-wall crossed bending special-shaped spring clamp, and the double-wall crossed bending special-shaped spring clamp is arranged on the supporting plate.
Compared with the prior art, the invention has the following beneficial effects:
the invention does not need special detection equipment, can directly detect whether the clamping force of the double-wall cross-bending special-shaped spring clamp meets the requirement, can meet the requirement of mass production, has simple and convenient operation and low manufacturing cost, saves the purchase of the special detection equipment by about 20 ten thousand yuan, and reduces the manufacturing cost of products.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
fig. 4 is a front view of the base assembly 1 of the present invention;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a left side view of FIG. 4;
FIG. 7 is a front view of the force mechanism assembly 2 of the present invention;
FIG. 8 is a left side view of FIG. 7;
fig. 9 is a front view of the lifting mechanism assembly 3 of the present invention;
FIG. 10 is a top view of FIG. 9;
FIG. 11 is a left side view of FIG. 9;
fig. 12 is a front view of the linkage assembly 4 of the present invention;
FIG. 13 is a top view of FIG. 12;
FIG. 14 is a left side view of FIG. 12;
FIG. 15 is a front view of a measured double-walled cross-curved profiled spring clip holding a force measuring steel bar 2-5;
fig. 16 is a top view of fig. 15.
Detailed Description
The first embodiment is as follows: referring to fig. 1 to 16, a double-wall cross bending profiled spring clamp clamping force testing device according to the present embodiment includes a base assembly 1, a stress application mechanism assembly 2, a lifting mechanism assembly 3 and a link mechanism assembly 4, wherein the base assembly 1 includes a rear pillar 1-1, a base 1-2, a front pillar 1-3 and a guide plate 1-6, the stress application mechanism assembly 2 includes a lower force-measuring block 2-1, a connecting rod 2-2, an upper force-measuring block 2-3, a hook 2-4 and a force-measuring steel bar 2-5, the lifting mechanism assembly 3 includes a pallet 3-1, a pallet pull rod 3-4 and a connecting rod 3-8, the link mechanism assembly 4 includes an upper beam 4-1, a connecting beam 4-5, a lower beam 4-6 and a handle 4-7,
the rear upright 1-1 is vertically fixedly connected with the rear side of the upper end face of the base 1-2, the front upright 1-3 is vertically fixedly connected with the front side of the upper end face of the base 1-2 and is arranged right in front of the rear upright 1-1, the rear end of the guide plate 1-6 is sleeved outside the upper end of the front upright 1-3, the middle part of the upper beam 4-1 is hinged with the top end of the front upright 1-3, the rear end of the lower beam 4-6 is hinged with the top end of the rear upright 1-1, the upper end of the connecting beam 4-5 is hinged with the rear end of the upper beam 4-1, the lower end of the connecting beam 4-5 is hinged with the middle part of the lower beam 4-6, the front end of the lower beam 4-6 is fixedly connected with the handle 4-7, the front end of the upper beam 4-1 is hinged with the upper end of the connecting rod 3-8, the lower end of the connecting rod 3-8 is hinged with the upper end of the supporting plate pull rod 3-4, the supporting plate pull rod 3-4 is vertically inserted at the front end of the guide plate 1-6, the lower end of the supporting plate pull rod 3-4 is vertically fixedly connected with the rear end of the supporting plate 3-1, the lower force measuring block 2-1 is arranged right in front of the front upright post 1-3, the upper force measuring block 2-3 is arranged right above the lower force measuring block 2-1, a counter bore 2-6 is arranged in the middle of the lower end of the lower force measuring block 2-1 along the vertical direction, the connecting rod 2-2 passes through the hole bottom of the counter bore 2-6, the upper end of the connecting rod 2-2 is fixedly connected with the middle of the lower end of the upper force measuring block 2-3, the lower end of the connecting rod 2-2 is clamped in the counter bore 2-6 and is in sliding connection along the depth direction of the counter bore 2-6, the lower end of the hook 2-4 is vertically fixedly connected with the middle of the upper end of the upper force measuring block 2-3, the upper end of the hook 2-4 is connected with the lower end of the force measuring steel bar 2-5 in a hanging manner, the upper end of the force measuring steel bar 2-5 penetrates through the front end of the supporting plate 3-1 and clamps the tested double-wall crossed bending special-shaped spring clamp, and the tested double-wall crossed bending special-shaped spring clamp is arranged on the supporting plate 3-1.
In the embodiment, the upper end of the force measuring steel bar 2-5 is clamped with the tested double-wall cross bending special-shaped spring clamp, and the tested double-wall cross bending special-shaped spring clamp is lifted upwards through the combined action of the lifting mechanism assembly 3 and the connecting rod mechanism assembly 4, so that the testing purpose is realized.
The supporting plate pull rod 3-4 is vertically inserted into the front end of the guide plate 1-6, the front end of the guide plate 1-6 is provided with a guide hole, the supporting plate pull rod 3-4 is arranged in the guide hole, the supporting plate pull rod 3-4 of the lifting mechanism assembly 3 and the connecting rod 3-8 adopt a hinged structure, and thus the supporting plate pull rod 3-4 can vertically move up and down in the guide hole of the guide plate 1-6, and the force measuring steel bar 2-5 is ensured to always bear the tensile force in the vertical direction.
When the double-wall crossed bending special-shaped spring clamp is designed to be tested, the tested double-wall crossed bending special-shaped spring clamp is clamped at the upper end of a force measuring steel bar 2-5, the lower end of the force measuring steel bar 2-5 is hung at the upper end of a hook 2-4, a handle 4-7 is moved up and down, the height of a supporting plate 3-1 is adjusted, the tested double-wall crossed bending special-shaped spring clamp is placed on the supporting plate 3-1, at the moment, the upper end face of a lower force measuring block 2-1 is contacted with the lower end face of an upper force measuring block 2-3, the handle 4-7 is pressed downwards, a lower beam 4-6 pulls a connecting beam 4-5 to move downwards, the connecting beam 4-5 pulls the rear end of the upper beam 4-1 to move downwards, the upper beam 4-1 pulls a connecting rod 3-8 to move upwards, the connecting rod 3-8 pulls the supporting plate 3-4 to move upwards, the supporting plate 3-1 drives the tested double-wall crossed bending special-shaped spring clamp to move upwards, the tested double-wall crossed bending special-shaped spring clamp 2-5 can contact the upper block 2-3, otherwise the special-shaped spring clamp fails to pass the clamp, and the clamp is failed to be qualified; and continuously pressing down the handle 4-7, if the connecting rod 2-2 cannot lift the lower force measuring block 2-1, indicating that the maximum clamping force of the measured double-wall cross bending special-shaped spring clamp is qualified, otherwise, removing the double-wall cross bending special-shaped spring clamp to complete a working cycle.
The second embodiment is as follows: referring to fig. 1 to 6, in the present embodiment, a rubber pad 1-4 is disposed at the front side of the upper end surface of the base 1-2, and the rubber pad 1-4 is disposed between the lower force measuring block 2-1 and the base 1-2. Other compositions and connection modes are the same as in the first embodiment.
The rubber pad 1-4 is adhered to the front side of the upper end face of the base 1-2 by adopting an adhering method, so that the lower force measuring block 2-1 is prevented from collision when falling down, the quality of the lower force measuring block 2-1 is changed, and the testing effect is prevented from being influenced.
And a third specific embodiment: in the present embodiment, the rear end of the guide plate 1-6 is provided with the jackscrews 1-5, the jackscrews 1-5 are screwed on the rear end surface of the guide plate 1-6 along the horizontal direction, and the tail ends of the jackscrews 1-5 are abutted against the vertical side walls of the front upright posts 1-3. Other compositions and connection modes are the same as those of the first or second embodiment.
After the position of the guide plate 1-6 is adjusted, the guide plate 1-6 is fixed by the jackscrews 1-5, and the guide plate 1-6 is prevented from sliding up and down on the front upright post 1-3.
The specific embodiment IV is as follows: referring to fig. 1 to 6, in this embodiment, the shape of the base 1-2 is isosceles trapezoid, the upper bottom end and the lower bottom end are both semicircular, the rear upright 1-1 is disposed in the middle of the upper bottom end of the base 1-2, and the front upright 1-3 is disposed in the middle of the lower bottom end of the base 1-2. Other compositions and connection modes are the same as those of the third embodiment.
Fifth embodiment: referring to fig. 1 and 7, in this embodiment, a boss 2-7 is disposed at the lower end of the connecting rod 2-2 along the outer circumferential direction, and the boss 2-7 is clamped in the counterbore 2-6. Other compositions and connection modes are the same as those of the first, second or fourth embodiments.
The design makes the lower extreme of connecting rod 2-2 can slide from top to bottom along the depth direction of counter bore 2-6, simultaneously because boss 2-7's restriction, guarantees that the lower extreme of connecting rod 2-2 can not take place to break away from with lower force measuring block 2-1.
Specific embodiment six: in this embodiment, the upper end of the connecting rod 2-2 and the lower end of the hook 2-4 are respectively provided with external threads, the upper end of the connecting rod 2-2 is screwed in the middle of the lower end face of the upper force measuring block 2-3, and the lower end of the hook 2-4 is screwed in the middle of the upper end face of the upper force measuring block 2-3. Other compositions and connection modes are the same as those of the fifth embodiment.
The design is convenient for the installation and the disassembly of the connecting rod 2-2 and the hook 2-4.
Seventh embodiment: in the present embodiment, a hook 2-8 is disposed at the upper end of the hook 2-4 in the present embodiment, a ring 2-9 is disposed at the lower end of the force-measuring steel bar 2-5, and the ring 2-9 is suspended on the hook 2-8. Other compositions and connection modes are the same as those of the sixth embodiment.
The connection between the force measuring steel bar 2-5 and the hook 2-4 is facilitated by the design.
Eighth embodiment: in the present embodiment, the handle 4-7 is fixedly connected with the lower beam 4-6 through the diagonal rod 4-8, the diagonal rod 4-8 is obliquely arranged along the horizontal direction, the front end of the diagonal rod 4-8 is fixedly connected with the rear end of the handle 4-7, and the rear end of the diagonal rod 4-8 is fixedly connected with the front end of the lower beam 4-6. Other compositions and connection modes are the same as those of the first, second, fourth, sixth or seventh embodiments.
The design prevents the interference between the handle 4-7 and the stressing mechanism component 2 and the lifting mechanism component 3, so that the application of force to the handle 4-7 is realized conveniently.
Detailed description nine: the lower end of the pallet pull rod 3-4 according to the present embodiment is fixedly connected to the rear end of the pallet 3-1 by the fastening bolt 3-2, as described in the present embodiment with reference to fig. 1 and 3. Other compositions and connection modes are the same as those of the eighth embodiment.
The design is convenient for realizing the fixed connection between the supporting plate pull rod 3-4 and the supporting plate 3-1. In the present embodiment, a fastening bolt washer 3-3 is further provided between the fastening bolt 3-2 and the pallet 3-1.
Detailed description ten: in the present embodiment, the lower end of the link 3-8 is hinged to the upper end of the pallet pull rod 3-4 through the first connection bolt 3-5 and the first nut 3-6, the first connection bolt 3-5 is inserted into the lower end of the link 3-8 and the upper end of the pallet link 3-4 in the horizontal direction, the first nut 3-6 is rotatably mounted at the end of the first connection bolt 3-5, the rear end of the upper beam 4-1 is hinged to the upper end of the connection beam 4-5 through the second connection bolt 4-2 and the second nut 4-3, the second connection bolt 4-2 is inserted into the rear end of the upper beam 4-1 and the upper end of the connection beam 4-5 in the horizontal direction, and the second nut 4-3 is rotatably mounted at the end of the second connection bolt 4-2, as described with reference to fig. 1 to 3 and 9 to 14. Other compositions and connection manners are the same as those of the embodiment nine.
In this embodiment, the first connecting bolt 3-5 is further provided with a first washer 3-7, the first washer 3-7 is disposed on the inner side of the first nut 3-6, the second connecting bolt 4-2 is further provided with a second washer 4-4, and the second washer 4-4 is disposed on the inner side of the second nut 4-3.
Principle of operation
During testing, the tested double-wall crossed bending special-shaped spring clamp is clamped at the upper end of the force measuring steel bar 2-5, the lower end of the force measuring steel bar 2-5 is hung at the upper end of the hook 2-4, the handle 4-7 is moved up and down, the height of the supporting plate 3-1 is adjusted, the tested double-wall crossed bending special-shaped spring clamp is placed on the supporting plate 3-1, at the moment, the upper end face of the lower force measuring block 2-1 is contacted with the lower end face of the upper force measuring block 2-3, the handle 4-7 is pressed downwards, the lower beam 4-6 pulls the connecting beam 4-5 to move downwards, the connecting beam 4-5 pulls the rear end of the upper beam 4-1 to move downwards, the upper beam 4-1 pulls the connecting rod 3-8 to move upwards, the supporting plate 3-1 pulls the supporting plate 3-1 to move upwards, the tested double-wall crossed bending special-shaped spring clamp is driven by the supporting plate 3-1 to move upwards, if the upper force measuring block 2-3 can be pulled upwards, otherwise, the tested double-wall crossed bending special-shaped spring clamp is failed to be proved; and continuously pressing down the handle 4-7, if the connecting rod 2-2 cannot lift the lower force measuring block 2-1, indicating that the maximum clamping force of the measured double-wall cross bending special-shaped spring clamp is qualified, otherwise, removing the double-wall cross bending special-shaped spring clamp to complete a working cycle.
Claims (10)
1. A double-wall cross bending special-shaped spring clamp clamping force testing device is characterized in that: the double-wall crossed bending special-shaped spring clamp clamping force testing device comprises a base assembly (1), a stress application mechanism assembly (2), a lifting mechanism assembly (3) and a connecting rod mechanism assembly (4), wherein the base assembly (1) comprises a rear upright post (1-1), a base (1-2), a front upright post (1-3) and a guide plate (1-6), the stress application mechanism assembly (2) comprises a lower force measurement block (2-1), a connecting rod (2-2), an upper force measurement block (2-3), a hook (2-4) and a force measurement steel bar (2-5), the lifting mechanism assembly (3) comprises a supporting plate (3-1), a supporting plate pull rod (3-4) and a connecting rod (3-8), the connecting rod mechanism assembly (4) comprises an upper beam (4-1), a connecting beam (4-5), a lower beam (4-6) and a handle (4-7),
the rear upright (1-1) is vertically fixedly connected to the rear side of the upper end face of the base (1-2), the front upright (1-3) is vertically fixedly connected to the front side of the upper end face of the base (1-2) and is arranged right in front of the rear upright (1-1), the rear end of the guide plate (1-6) is sleeved outside the upper end of the front upright (1-3), the middle part of the upper beam (4-1) is hinged to the top end of the front upright (1-3), the rear end of the lower beam (4-6) is hinged to the top end of the rear upright (1-1), the upper end of the connecting beam (4-5) is hinged to the rear end of the upper beam (4-1), the lower end of the connecting beam (4-5) is hinged to the middle part of the lower beam (4-6), the front end of the lower beam (4-6) is fixedly connected with a handle (4-7), the front end of the upper beam (4-1) is hinged to the upper end of the connecting rod (3-8), the lower end of the connecting rod (3-8) is hinged to the top end of the upper end of the connecting rod (3-4), the vertical force-measuring block (3-4) is arranged right above the front end of the front upright (1-1) and is fixedly connected to the front end of the front supporting plate (1-1), the upper force measuring block (2-3) is arranged right above the lower force measuring block (2-1), a counter bore (2-6) is arranged in the middle of the lower end of the lower force measuring block (2-1) along the vertical direction, the connecting rod (2-2) penetrates through the hole bottom of the counter bore (2-6), the upper end of the connecting rod (2-2) is fixedly connected with the middle of the lower end of the upper force measuring block (2-3), the lower end of the connecting rod (2-2) is clamped in the counter bore (2-6) and is in sliding connection along the depth direction of the counter bore (2-6), the lower end of the hook (2-4) is vertically fixedly connected with the middle of the upper end of the upper force measuring block (2-3), the upper end of the hook (2-4) is connected with the lower end of the force measuring steel bar (2-5) in a hanging mode, the upper end of the force measuring steel bar (2-5) penetrates through the front end of the supporting plate (3-1), and the measured double-wall cross bending special-shaped spring is clamped at the upper end of the force measuring plate (2-5) in a testing mode.
2. The double-wall cross-bending profiled spring clamp clamping force testing device as claimed in claim 1, wherein: the front side of the upper end face of the base (1-2) is provided with a rubber pad (1-4), and the rubber pad (1-4) is arranged between the lower force measuring block (2-1) and the base (1-2).
3. The double-wall crossed bending special-shaped spring clamp clamping force testing device according to claim 1 or 2, wherein: the rear end of the guide plate (1-6) is provided with jackscrews (1-5), the jackscrews (1-5) are rotatably arranged on the rear end face of the guide plate (1-6) along the horizontal direction, and the tail ends of the jackscrews (1-5) are propped against the vertical side wall of the front upright post (1-3).
4. A double-walled cross-bend profiled spring clamp clamping force testing device as defined in claim 3, wherein: the shape of the base (1-2) is isosceles trapezoid, the upper bottom end and the lower bottom end are semicircular, the rear upright post (1-1) is arranged in the middle of the upper bottom end of the base (1-2), and the front upright post (1-3) is arranged in the middle of the lower bottom end of the base (1-2).
5. A double-wall cross-bending profiled spring clamp clamping force testing device as defined in claim 1, 2 or 4, wherein: the lower end of the connecting rod (2-2) is provided with a boss (2-7) along the outer circumferential direction, and the boss (2-7) is clamped in the counter bore (2-6).
6. The double-wall cross-bending profiled spring clamp clamping force testing device as defined in claim 5, wherein: the upper end of the connecting rod (2-2) and the lower end of the hook (2-4) are respectively provided with external threads, the upper end of the connecting rod (2-2) is rotatably arranged in the middle of the lower end face of the upper force measuring block (2-3), and the lower end of the hook (2-4) is rotatably arranged in the middle of the upper end face of the upper force measuring block (2-3).
7. The double-wall cross-bending profiled spring clamp clamping force testing device as defined in claim 6, wherein: the upper end of the hook (2-4) is provided with a hook (2-8), the lower end of the force measuring steel bar (2-5) is provided with a circular ring (2-9), and the circular ring (2-9) is hung on the hook (2-8).
8. The double-wall cross-bending profiled spring clamp clamping force testing apparatus of claim 1, 2, 4, 6 or 7, wherein: the handle (4-7) is fixedly connected with the lower beam (4-6) through an inclined rod (4-8), the inclined rod (4-8) is obliquely arranged along the horizontal direction, the front end of the inclined rod (4-8) is fixedly connected with the rear end of the handle (4-7), and the rear end of the inclined rod (4-8) is fixedly connected with the front end of the lower beam (4-6).
9. The double-wall cross-bending profiled spring clamp clamping force testing device as defined in claim 8, wherein: the lower end of the supporting plate pull rod (3-4) is fixedly connected with the rear end of the supporting plate (3-1) through a fastening bolt (3-2).
10. The double-wall cross-bending profiled spring clamp clamping force testing device as defined in claim 9, wherein: the lower end of the connecting rod (3-8) is hinged with the upper end of the supporting plate pull rod (3-4) through a first connecting bolt (3-5) and a first nut (3-6), the first connecting bolt (3-5) is inserted into the lower end of the connecting rod (3-8) and the upper end of the supporting plate connecting rod (3-4) along the horizontal direction, the first nut (3-6) is screwed at the tail end of the first connecting bolt (3-5), the rear end of the upper beam (4-1) is hinged with the upper end of the connecting beam (4-5) through a second connecting bolt (4-2) and a second nut (4-3), and the second connecting bolt (4-2) is inserted into the rear end of the upper beam (4-1) and the upper end of the connecting beam (4-5) along the horizontal direction, and the second nut (4-3) is screwed at the tail end of the second connecting bolt (4-2).
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| CN201711245820.7A CN108020364B (en) | 2017-11-30 | 2017-11-30 | Double-wall cross-bending special-shaped spring clamp clamping force testing device |
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| CN201711245820.7A CN108020364B (en) | 2017-11-30 | 2017-11-30 | Double-wall cross-bending special-shaped spring clamp clamping force testing device |
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| CN108020364B true CN108020364B (en) | 2023-09-08 |
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