CN217953847U - Tension spring stretching and fixing device for force attenuation test - Google Patents
Tension spring stretching and fixing device for force attenuation test Download PDFInfo
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- CN217953847U CN217953847U CN202221112887.XU CN202221112887U CN217953847U CN 217953847 U CN217953847 U CN 217953847U CN 202221112887 U CN202221112887 U CN 202221112887U CN 217953847 U CN217953847 U CN 217953847U
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Abstract
The utility model relates to a technical field of extension spring frock especially relates to a tensile fixing device of extension spring for doing all can decay test. The structure includes that the one end of fixing base is equipped with the head riser, the other end is equipped with the afterbody riser, the centre is equipped with middle riser, a lead screw and two guide arms of through connection on the middle riser, the one end of lead screw and guide arm is connected on the afterbody riser, the other end is connected on the head riser, connects L shaped steel board one on the head riser, connects L shaped steel board two on the middle riser. The tension spring stretching and fixing device for the force attenuation test is simple in structure, compact in design, simple and labor-saving in operation and flexible in disassembly and assembly, and even a laboratory worker with small force can independently complete the test tasks of a plurality of tension springs at one time, so that the quality problem of the tension springs can be timely and accurately judged, and the safety risk of users caused by force value attenuation in practical use is greatly reduced.
Description
Technical Field
The utility model relates to a tensile fixing device of extension spring especially relates to a tensile fixing device of extension spring for doing all can the decay test.
Background
At present, the application of the SUV electric tail gate is more and more popular, and the car trunk lid also has the trend of electric drive development. The trunk electric driver consists of a driving unit and an execution unit, wherein a tension spring is an important role in outputting force, the mechanical property of the tension spring directly influences the feasibility and the stability of opening and closing the trunk cover of the electric driver assembly, the trunk cover is in a closed state for a long time, the tension spring is also fixed at the maximum stretching length for a long time, the tension force has certain attenuation, the attenuation must be controlled within a certain range, the tail gate can still be normally opened and closed after long-term use, the tension spring is stretched and fixed at the maximum using length, and the residual force value is measured after the trunk electric driver is stored in a simulated environment for a period of time.
The existing electric support rod disassembling device can only compress a pressure spring to a specific length, cannot stretch the tension spring and is fixed at a specific position, the continuous retaining force is not convenient for a tester to operate, and the tension spring cannot be placed in a high-temperature box according to a certain stretching requirement to perform a force attenuation test, so that the quality of the tension spring cannot be accurately judged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving above-mentioned defect, provide a tensile fixing device of extension spring for doing all can decay test.
In order to overcome the defect that exists among the background art, the utility model provides a technical scheme that its technical problem adopted is: the utility model provides a tensile fixing device of extension spring for power decay test includes the lead screw workstation, and the lead screw workstation includes the fixing base, and the one end of fixing base is equipped with the head riser, the other end is equipped with the afterbody riser, the centre is equipped with middle riser, a root lead screw of through connection and two guide arms on the middle riser, the one end of lead screw and guide arm is connected on the afterbody riser, the other end is connected on the head riser, connect L shaped steel board one on the head riser, connect L shaped steel board two on the middle riser, the face of L shaped steel board one perpendicular to head riser is connected with the aluminium alloy, is on a parallel with the face and the head riser of head riser, the face of L shaped steel board two perpendicular to middle risers is connected with the aluminium alloy, is on a parallel with the face and the middle riser of riser.
According to the utility model discloses a further embodiment, further include head riser and afterbody riser pass through bolt fixed connection on the fixing base or with fixing base integrated into one piece, are equipped with the intermediate aperture on head riser and the afterbody riser, and the downthehole bearing that is equipped with in the intermediate aperture rotates with the lead screw to be connected.
According to the utility model discloses a further embodiment, further include the middle riser is the active structure, is equipped with the hole on the middle riser, downthehole be equipped with the rotatory complex screw-nut of lead screw.
According to the utility model discloses a further embodiment, further include all be equipped with the dovetail on head riser and the middle riser, be equipped with the trapezoidal piece of installing with the dovetail cooperation on L shaped steel board one and the L shaped steel board two.
According to the utility model discloses a another embodiment, further include corresponding inboard, be equipped with the baffle that is used for the epaxial location of extension spring in dovetail one side department on head riser and the intermediate riser.
According to the utility model discloses a further embodiment, further include L shaped steel board is through screw, section bar nut fixed mounting on the aluminium alloy.
According to the utility model discloses a further embodiment, further include but L shaped steel board two is through screw, section bar nut free sliding type connection on the aluminium alloy.
According to the utility model discloses a further embodiment, further include connect the one end of each connection extension spring on the face that is on a parallel with the head riser on L shaped steel board one and L shaped steel board two, all be equipped with the ball nail that is used for cooperation installation extension spring both ends bulb on the face.
According to the utility model discloses a further embodiment, further include be equipped with the hand wheel of connecting the lead screw on the afterbody riser.
The utility model has the advantages that: the tension spring stretching and fixing device for the force attenuation test is simple in structure, compact in design, simple and labor-saving in operation and flexible in disassembly and assembly, and even a laboratory worker with small force can independently complete the test tasks of a plurality of tension springs at one time, so that the quality problem of the tension springs can be timely and accurately judged, and the safety risk of users caused by force value attenuation in practical use is greatly reduced.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
wherein: 1. the device comprises L-shaped steel plates I and II, 2, a baffle plate 3, a trapezoidal block 4, L-shaped steel plates II and 5, dovetail grooves 6, ball nails 7, aluminum profiles 8, tail vertical plates 9, hand-operated wheels 10, fixing seats 11, lead screw nuts 12, middle vertical plates 13, lead screws 14, guide rods 15 and head vertical plates.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The embodiments of the basic utility model, and all other embodiments obtained by those skilled in the art without creative efforts, all belong to the protection scope of the present invention.
As shown in fig. 1, including the lead screw workstation in the figure, the lead screw workstation mainly used extension spring, the lead screw workstation includes fixing base 10, and the one end of fixing base 10 is equipped with head riser 15, and the other end is equipped with afterbody riser 8, the centre is equipped with middle riser 12, and a lead screw 13 and two guide arms 14 of through connection are gone up to middle riser 12, and the one end of lead screw 13 and guide arm 14 is connected on afterbody riser 8, the other end is connected on head riser 15, connect L shaped steel board 1 on head riser 15, connect L shaped steel board two 4 on the middle riser 12, L shaped steel board 1 is connected with aluminium alloy 7 perpendicularly to the face of head riser 15, is on a parallel with the face of head riser 15 and is connected with head riser 15, and the face of L shaped steel board two 4 perpendicular to middle riser 12 is connected with aluminium alloy 7, is on a parallel with the face of middle riser 12 and is connected with middle riser 12. The first L-shaped steel plate 1 and the second L-shaped steel plate 4 play a role in connecting the aluminum profile 7 to the head vertical plate 15 and the middle vertical plate 12, and meanwhile, the tension springs are connected to the first L-shaped steel plate 1 and the second L-shaped steel plate 4 and are stretched through the screw rod workbench.
The head vertical plate 15 and the tail vertical plate 8 are fixedly connected to the fixing seat 10 through bolts or are integrally formed with the fixing seat 10, middle holes are formed in the head vertical plate 15 and the tail vertical plate 8, and bearings are installed in the middle holes and are rotatably connected with the screw rods 13. The head riser 15 and the tail riser 8 are stationary structures.
The middle vertical plate 12 is of a movable structure, a hole is formed in the middle vertical plate 12, a lead screw nut 11 which is in rotary fit with the lead screw is installed in the hole, and the lead screw nut 11 is matched with the lead screw to rotate by rotating the hand-operated wheel 9.
Dovetail grooves 5 are formed in the head vertical plate 15 and the middle vertical plate 12, trapezoidal blocks 3 which are installed in a matched mode with the dovetail grooves 5 are arranged on the L-shaped steel plate I1 and the L-shaped steel plate II 4, the trapezoidal blocks 3 are just connected into the dovetail grooves 5 in an inserted mode during installation, and all degrees of freedom of the tension spring except axial movement are limited.
The corresponding inner sides of the head vertical plate 15 and the middle vertical plate 12 and one side of the dovetail groove 5 are provided with a baffle 2 used for positioning on a tension spring shaft, and the baffle 2 is used for positioning the tension spring when the tension spring is axially stretched to prevent the trapezoidal block 3 from moving out of the dovetail groove 5.
The first L-shaped steel plate 1 is fixedly arranged on the aluminum profile 7 through screws and profile nuts. The second L-shaped steel plate 4 can be freely connected to the aluminum profile 7 in a sliding mode through screws and profile nuts. When the tension spring is stretched, the first L-shaped steel plate 1 needs to be fixed and does not move, and the second L-shaped steel plate 4 needs to freely slide on the aluminum profile 7.
The surface of the L-shaped steel plate I1 parallel to the head vertical plate 15 and the surface of the L-shaped steel plate II 4 parallel to the middle vertical plate 12 are connected with one end of each connecting tension spring, and the surfaces of the L-shaped steel plates are provided with ball nails 6 used for matching and installing ball heads at two ends of each tension spring. On the electric driver product, the tail end of a tension spring is rotatably installed on a plastic joint with a thread groove, and the plastic joint is connected with a vehicle body ball nail through a ball head. When the force attenuation test is carried out, the part of the structure is removed for installing and pulling the tension spring.
The tail vertical plate 8 is provided with a hand-operated wheel 9 connected with a screw rod 13, and the hand-operated wheel 9 controls the screw rod to rotate to stretch the tension spring.
The working principle is as follows: the installation is started, firstly the first L-shaped steel plate 1 and the second L-shaped steel plate 4 are installed on the aluminum profile 7, the ball heads at two ends of the tension spring are installed on the ball nails 6 in a pressing mode, then the fixed first L-shaped steel plate 1 is installed on the fixed head vertical plate 15 through the dovetail groove, and the slidable second L-shaped steel plate 4 and the movable middle vertical plate 12 are installed together. Rotating the hand wheel 9, the lead screw 13 rotates, the lead screw nut 11 pushes the movable middle vertical plate 12 to move outwards, and due to the positioning limitation of the baffle 2, one end of the tension spring is driven to move, and meanwhile, the L-shaped steel plate II 4 is driven to slide on the aluminum profile 7. After the tension spring is stretched to a certain length, the screw and the section bar nut on the L-shaped steel plate II 4 are screwed down, so that the L-shaped steel plate II 4 is fixed on the aluminum section bar 7. The reverse rotation hand wheel 9, the screw rod 13 reverse rotation, the middle vertical plate 12 reverse return, the trapezoidal block 3 on the L-shaped steel plate II 4 completely breaks away from the dovetail groove 5, the aluminum profile 7 and the tools such as the tension spring can be taken down from the workbench together, and thus, the tension spring can be maintained at a fixed length.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. The utility model provides a tensile fixing device of extension spring for power decay test, includes the lead screw workstation, its characterized in that: the lead screw workstation includes fixing base (10), and the one end of fixing base (10) is equipped with head riser (15), the other end is equipped with afterbody riser (8), the centre is equipped with middle riser (12), run through connection lead screw (13) and two guide arms (14) on middle riser (12), and the one end of lead screw (13) and guide arm (14) is connected on afterbody riser (8), the other end is connected on head riser (15), connect L shaped steel board (1) on head riser (15), connect L shaped steel board two (4) on middle riser (12), the face of L shaped steel board (1) perpendicular to head riser (15) is connected with aluminium alloy (7), is on a parallel with the face of head riser (15) and is connected with head riser (15), the face of L shaped steel board two (4) perpendicular to middle riser (12) is connected with aluminium alloy (7), is on a parallel with the face of middle riser (12) and is connected with middle riser (12).
2. The tension spring tension fixing device for the force attenuation test as set forth in claim 1, wherein: the head vertical plate (15) and the tail vertical plate (8) are fixedly connected to the fixing seat (10) through bolts or integrally formed with the fixing seat (10), middle holes are formed in the head vertical plate (15) and the tail vertical plate (8), and a bearing is installed in each middle hole and rotatably connected with the screw rod (13).
3. The tension spring tension fixing device for the force attenuation test as set forth in claim 1, wherein: the middle vertical plate (12) is of a movable structure, a hole is formed in the middle vertical plate (12), and a lead screw nut (11) which is in rotary fit with a lead screw is installed in the hole.
4. The tension spring tension fixing device for the force attenuation test as set forth in claim 1, wherein: dovetail grooves (5) are formed in the head vertical plate (15) and the middle vertical plate (12), and trapezoidal blocks (3) which are installed in a matched mode with the dovetail grooves (5) are arranged on the L-shaped steel plate I (1) and the L-shaped steel plate II (4).
5. The tension spring tension fixing device for the force attenuation test as set forth in claim 1, wherein: and a baffle (2) for positioning the tension spring shaft is arranged at one side of the dovetail groove (5) and at the corresponding inner side of the head vertical plate (15) and the middle vertical plate (12).
6. The tension spring tension fixing device for the force attenuation test as set forth in claim 1, wherein: the first L-shaped steel plate (1) is fixedly installed on the aluminum profile (7) through screws and profile nuts.
7. The tension spring tension fixing device for the force attenuation test as set forth in claim 1, wherein: the second L-shaped steel plate (4) can be freely and slidably connected to the aluminum profile (7) through screws and profile nuts.
8. The tension spring tension fixing device for the force attenuation test as set forth in claim 1, wherein: the face that is on a parallel with head riser (15) on L shaped steel board (1) and the face that is on a parallel with middle riser (12) on L shaped steel board two (4) are connected the one end of each connection extension spring, all be equipped with ball nail (6) that are used for the cooperation installation extension spring both ends bulb on the face.
9. The tension spring tension fixing device for the force attenuation test according to claim 1, wherein: and a hand-operated wheel (9) connected with a screw rod (13) is arranged on the tail vertical plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221112887.XU CN217953847U (en) | 2022-05-11 | 2022-05-11 | Tension spring stretching and fixing device for force attenuation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221112887.XU CN217953847U (en) | 2022-05-11 | 2022-05-11 | Tension spring stretching and fixing device for force attenuation test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217953847U true CN217953847U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221112887.XU Active CN217953847U (en) | 2022-05-11 | 2022-05-11 | Tension spring stretching and fixing device for force attenuation test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217953847U (en) |
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2022
- 2022-05-11 CN CN202221112887.XU patent/CN217953847U/en active Active
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