Mechanical performance tensile fixture for a new ultra-high strength material
By introducing a buffer and adjustment mechanism, combined with ultra-high molecular weight polyethylene fiber rope, automated clamping and force control are achieved, solving the problems of cumbersome operation and easy damage of existing tension clamps, and improving the flexibility and durability of the clamps.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN CHUCE TESTING TECH CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-21
AI Technical Summary
Existing tension clamps require manual tightening, which makes it difficult to control the tightening force, is cumbersome to operate, and the clamps are easily damaged due to single-point stress.
It employs a buffer mechanism, an adjustment mechanism, and a tensioning mechanism, including a buffer plate, springs, a servo motor, a reducer, and ultra-high molecular weight polyethylene fiber rope, to achieve automated clamping and force control, disperse tension, and prevent damage to the clamps.
It improves the flexibility of material fixing speed and clamping force, reduces the risk of fixture damage, and ensures the accuracy of test data and the durability of the equipment.
Smart Images
Figure CN224535602U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tensile clamps, and in particular to a tensile clamp with mechanical properties of a novel ultra-high strength material. Background Technology
[0002] When testing the tensile properties of a material, a tensile clamp can be used. The sample is placed between two tensile clamps, and the two ends of the material are fixed by the support bars in the two clamps. When the two clamps move in opposite directions, the material sample is stretched, and its tensile properties can be tested.
[0003] Existing tensile clamps, such as the clamp for a tensile strength testing device disclosed in utility model patent application number 202321888878.4, mainly include a force adjustment device, two clamping plate supports, and two pairs of integrated clamping plates. Each clamping plate support has two sides parallel to the tensile direction extending upwards and fixed with a clamping plate bracket. A pair of clamping plates are symmetrically connected to a clamping plate bracket, one above the other, and can move up and down on the clamping plate bracket. In use, the two ends of the tensile material are placed between the two pairs of symmetrically arranged integrated clamping plates. The force adjustment device is activated to adjust to a suitable clamping force to clamp the tensile material. The nuts at both ends of the connecting locking screw are tightened to fix the integrated clamping plate to the clamping plate support. The tensile traction device is activated, and the two clamping plate supports move in opposite directions along the guide rail under the action of the tensile traction device.
[0004] However, most existing clamps require manual locking and clamping, making it difficult to control the locking force, which is cumbersome to operate. Moreover, most clamps only bear a small amount of force when stretched, which can easily cause damage to the clamps. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a new type of high-strength material mechanical property tensile clamp that not only improves the fixing speed of materials, facilitates the adjustment of different clamping forces on materials, and improves the flexibility of the device, but also disperses the tension of the clamp and avoids clamp damage.
[0006] This utility model discloses a tensile clamp for the mechanical properties of ultra-high strength new materials, including a buffer mechanism; it also includes a first clamp, a second clamp, an adjustment mechanism, and a tensioning mechanism. The first clamp is installed on the buffer mechanism and fixes one end of the material, the second clamp is installed on the buffer mechanism and fixes the other end of the material, the adjustment mechanism is installed on the second clamp and adjusts the clamping force of the second clamp on the material, and the tensioning mechanism is installed on the second clamp and pulls the second clamp to move. The operator fixes one end to the first clamp and the other end to the second clamp, adjusts the clamping force of the second clamp through the adjustment mechanism, and then activates the tensioning mechanism through the buffer mechanism to pull the second clamp to move and perform a tensile test on the material.
[0007] Preferably, the buffer mechanism includes a worktable, a housing, two sets of guide rails, a control panel, four sets of first springs, and a buffer plate. The bottom of the worktable is connected to the ground, and the bottom of the housing is connected to the top of the worktable. Both sets of guide rails are mounted on the housing, the control panel is mounted on the housing, the four sets of first springs are mounted on the housing, and the buffer plate is mounted on the four sets of first springs. The operator controls the clamping force and stretching length of the material through the control panel and the housing. When the material suddenly breaks, the second clamp will impact the buffer plate. The four sets of first springs, in conjunction with the buffer plate, reduce the impact force of the guide rails and prevent damage to the device.
[0008] Preferably, the first clamp includes a fixed base, four sets of columns, a dual-head motor, two sets of right-angle steering gears, two sets of lead screws, and a first pressing block. The bottom end of the fixed base is connected to the top end of the worktable, and the bottom ends of the four sets of columns are also connected to the top end of the worktable. The dual-head motor is mounted on the worktable, and its output end is connected to the input end of the two sets of right-angle steering gears. The output ends of the two sets of right-angle steering gears are respectively connected to the input ends of the two sets of lead screws. The first pressing block is slidably mounted on the four sets of columns, and is connected to the two sets of lead screws via threaded transmission. The operator places one end of the material on the fixed base and starts the dual-head motor through the control panel. The dual-head motor drives the two sets of lead screws to rotate through the two sets of right-angle steering gears, and the two sets of lead screws drive the first pressing block to press down and clamp the material, thus facilitating the clamping and fixing of one end of the material.
[0009] Preferably, the second clamp includes a movable base, two sets of handles, four sets of guide posts, four sets of second springs, and a second pressing block. The movable base is slidably mounted on the two sets of guide rails, both sets of handles are mounted on the movable base, all four sets of guide posts are mounted on the movable base, the four sets of second springs are respectively fitted onto the four sets of guide posts, and the second pressing block is slidably mounted on the four sets of guide posts and connected to the top of the four sets of second springs. The operator operates the two sets of handles to move the movable base to the appropriate position, and the four sets of second springs facilitate pushing the second pressing block upwards, allowing the operator to place the other end of the material between the movable base and the second pressing block.
[0010] Preferably, the fixed base, the first pressing block, the movable base, and the second pressing block are all equipped with pressure sensors on their surfaces. By setting pressure sensors, it is convenient to detect the pressing force on the material and transmit the monitoring data back to the machine for processing, so as to avoid excessive pressure causing damage to the equipment or materials.
[0011] Preferably, the adjustment mechanism includes a stepper motor, a rotating shaft, and an eccentric block. The stepper motor is mounted on a movable base, and the output end of the stepper motor is connected to the input end of the rotating shaft. The eccentric block is mounted on the rotating shaft. The control panel controls the start of the stepper motor, which drives the rotating shaft and the eccentric block to rotate. The eccentric block pushes the second pressing block down to press and fix the material.
[0012] Preferably, the tensioning mechanism includes a servo motor, a reducer, a take-up roller, a main traction rope, a connector, and multiple sets of traction branch ropes. The servo motor is mounted on the chassis, and its output end is connected to the input end of the reducer. The output end of the reducer is connected to the input end of the take-up roller. One end of the main traction rope is fixedly mounted on the take-up roller, and the connector is fixedly connected to the other end of the take-up roller. One end of each set of traction branch ropes is connected to the connector, and the other end is connected to the movable base at multiple points. The servo motor is started by controlling the chassis, and the servo motor drives the take-up roller to rotate through the reducer. The take-up roller winds up the main traction rope, and the multiple sets of traction branch ropes pull the movable base to move. The multi-point connection device avoids excessive tension that could damage the movable base.
[0013] Preferably, the main traction rope and multiple sets of traction branch ropes are all made of ultra-high molecular weight polyethylene fiber rope; the strength of ultra-high molecular weight polyethylene fiber rope is more than twice that of the first spring of high-quality steel wire, with extremely high specific strength and a breaking elongation of only 3-4%, which can accurately transmit displacement / load, avoid test data distortion caused by rope tension, resist repeated bending and pulley friction, and have a long service life.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the operator fixes one end to the first clamp and the other end to the second clamp, adjusts the clamping force of the second clamp through the adjustment mechanism, and then activates the tensioning mechanism through the buffer mechanism to pull the second clamp to move and perform a tensile test on the material. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model;
[0016] Figure 2 This is a cross-sectional isometric structural diagram of the buffer mechanism of this utility model;
[0017] Figure 3 This is a cross-sectional isometric structural diagram of the first clamp of this utility model;
[0018] Figure 4This is a partially enlarged cross-sectional isometric structural diagram of the second clamp and adjustment mechanism of this utility model;
[0019] Figure 5 This is a partially enlarged isometric structural diagram of the tensioning mechanism of this utility model.
[0020] The attached diagram is labeled as follows: 01, buffer mechanism; 11, worktable; 12, chassis; 13, guide rail; 14, control panel; 15, first spring; 16, buffer plate; 02, first clamp; 21, fixed base; 22, column; 23, dual-head motor; 24, right-angle steering gear; 25, lead screw; 26, first pressing block; 03, second clamp; 31, movable base; 32, handle; 33, guide column; 34, second spring; 35, second pressing block; 04, adjusting mechanism; 41, stepper motor; 42, rotating shaft; 43, eccentric block; 05, tensioning mechanism; 51, servo motor; 52, reducer; 53, take-up roller; 54, traction main rope; 55, connector; 56, traction branch rope. Detailed Implementation
[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0022] Example 1
[0023] This utility model discloses a tensile clamp for the mechanical properties of ultra-high strength new materials, comprising a buffer mechanism 01; it also includes a first clamp 02, a second clamp 03, an adjusting mechanism 04, and a tensile mechanism 05. The first clamp 02 is mounted on the buffer mechanism 01 and fixes one end of the material; the second clamp 03 is mounted on the buffer mechanism 01 and fixes the other end of the material; the adjusting mechanism 04 is mounted on the second clamp 03 and adjusts the clamping force of the second clamp 03 on the material; the tensile mechanism 05 is mounted on the second clamp 03 and pulls the second clamp 03 to move; the buffer mechanism 01 includes a worktable 11, a housing 12, and two sets of guides. The system includes a guide rail 13, a control panel 14, four sets of first springs 15, and a buffer plate 16. The bottom of the worktable 11 is connected to the ground, and the bottom of the chassis 12 is connected to the top of the worktable 11. Both sets of guide rails 13 are mounted on the chassis 12, the control panel 14 is mounted on the chassis 12, the four sets of first springs 15 are mounted on the chassis 12, and the buffer plate 16 is mounted on the four sets of first springs 15. The first clamp 02 includes a fixed base 21, four sets of columns 22, a double-headed motor 23, two sets of right-angle deflectors 24, two sets of lead screws 25, and a first pressing block 26. The bottom of the fixed base 21 is connected to the top of the worktable 11, and the bottom of the four sets of columns 22 is connected to the top of the worktable 11. The end is connected to the top of the workbench 11. The dual-head motor 23 is mounted on the workbench 11. The output end of the dual-head motor 23 is connected to the input end of two sets of right-angle steering gears 24. The output end of the two sets of right-angle steering gears 24 is connected to the input end of two sets of lead screws 25 respectively. The first pressing block 26 is slidably mounted on four sets of columns 22 and the first pressing block 26 is connected to the two sets of lead screws 25 through threaded transmission. The second clamp 03 includes a movable base 31, two sets of handles 32, four sets of guide columns 33, four sets of second springs 34 and a second pressing block 35. The movable base 31 is slidably mounted on two sets of guide rails 13. Both sets of handles 32 are mounted on the movable base 31. On the base 31, four sets of guide posts 33 are all mounted on the movable base 31, and four sets of second springs 34 are respectively fitted on the four sets of guide posts 33. The second pressing block 35 is slidably mounted on the four sets of guide posts 33 and connected to the top of the four sets of second springs 34. It also includes a fixed base 21, a first pressing block 26, and pressure sensors are provided on the surfaces of the movable base 31 and the second pressing block 35. The adjustment mechanism 04 includes a stepper motor 41, a rotating shaft 42 and an eccentric block 43. The stepper motor 41 is mounted on the movable base 31, and the output end of the stepper motor 41 is connected to the input end of the rotating shaft 42. The eccentric block 43 is mounted on the rotating shaft 42.During operation, the operator first places one end of the material on the fixed base 21 and starts the dual-head motor 23 via the control panel 14. The dual-head motor 23 drives two sets of lead screws 25 to rotate via two sets of right-angle deflectors 24. The two sets of lead screws 25 drive the first pressing block 26 to press down and clamp the material, facilitating the clamping and fixing of one end of the material. The operator operates two sets of handles 32 to move the movable base 31 to the appropriate position. Four sets of second springs 34 are set to push the second pressing block 35 upward, allowing the operator to place the other end of the material between the movable base 31 and the second pressing block 35. The control panel 14 controls... The stepper motor 41 is activated, driving the rotating shaft 42 and eccentric block 43 to rotate. The eccentric block 43 pushes the second pressing block 35 down to press and fix the material. A pressure sensor is installed to easily detect the pressing force on the material and transmit the monitoring data back to the housing 12 for processing, preventing excessive pressure from damaging the equipment or material. The operator controls the pressing force and stretching length of the material through the control panel 14 and the housing 12. When the material suddenly breaks, the second clamp 03 will impact the buffer plate 16. Four sets of first springs 15, in conjunction with the buffer plate 16, reduce the impact force on the guide rail 13, preventing damage to the device.
[0024] Example 2
[0025] like Figures 1 to 5As shown, this utility model discloses a high-strength new material mechanical property tensile fixture, based on embodiment 1. The tensile mechanism 05 includes a servo motor 51, a reducer 52, a take-up roller 53, a traction main rope 54, a connector 55, and multiple sets of traction branch ropes 56. The servo motor 51 is mounted on the housing 12, and its output end is connected to the input end of the reducer 52. The output end of the reducer 52 is connected to the input end of the take-up roller 53. One end of the traction main rope 54 is fixedly mounted on the take-up roller 53, and the connector 55 is fixedly connected to the other end of the take-up roller 53. The multiple sets of traction ropes 56 are connected at one end to the connector 55 and at the other end to the movable base 31 at multiple points; the main traction rope 54 and the multiple sets of traction ropes 56 are all ultra-high molecular weight polyethylene fiber ropes; during operation, the operator first places one end of the material on the fixed base 21, and starts the dual-head motor 23 through the control panel 14. The dual-head motor 23 drives two sets of lead screws 25 to rotate through two sets of right-angle deflectors 24. The two sets of lead screws 25 drive the first pressing block 26 to press down and tighten the material, which facilitates clamping and fixing one end of the material. Operators operate two sets of handles 32 to slide the movable base 31 to a suitable position. Four sets of second springs 34 facilitate the upward pushing of the second pressing block 35, allowing the operator to place the other end of the material between the movable base 31 and the second pressing block 35. The control panel 14 starts the stepper motor 41, which drives the rotating shaft 42 and eccentric block 43 to rotate. The eccentric block 43 pushes the second pressing block 35 downward to press and fix the material. A pressure sensor is installed to easily detect the pressing force on the material and transmit the monitoring data back to the machine housing 12. To prevent excessive pressure from damaging the equipment or materials, the operator controls the servo motor 51 via the control box 12. The servo motor 51 drives the winding roller 53 to rotate via the reducer 52. The winding roller 53 winds up the traction main rope 54. Multiple sets of traction branch ropes 56 pull the moving base 31 to move. The multi-point connection of the equipment prevents excessive tension from damaging the moving base 31. When the material suddenly breaks, the second clamp 03 will hit the buffer plate 16. The four sets of first springs 15 work with the buffer plate 16 to reduce the impact force on the guide rail 13 and prevent damage to the device.
[0026] The dual-head motor 23, right-angle steering gear 24, stepper motor 41, servo motor 51 and reducer 52 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A tensile fixture for ultra-high strength novel materials, comprising a buffer mechanism (01); characterized in that, It also includes a first clamp (02), a second clamp (03), an adjustment mechanism (04), and a tensioning mechanism (05). The first clamp (02) is installed on the buffer mechanism (01) and fixes one end of the material. The second clamp (03) is installed on the buffer mechanism (01) and fixes the other end of the material. The adjustment mechanism (04) is installed on the second clamp (03) and adjusts the clamping force of the second clamp (03) on the material. The tensioning mechanism (05) is installed on the second clamp (03) and pulls the second clamp (03) to move. The buffer mechanism (01) includes a workbench (11), a chassis (12), two sets of guide rails (13), a control panel (14), four sets of first springs (15) and a buffer plate (16). The bottom of the workbench (11) is connected to the ground, and the bottom of the chassis (12) is connected to the top of the workbench (11). Both sets of guide rails (13) are installed on the chassis (12), the control panel (14) is installed on the chassis (12), the four sets of first springs (15) are installed on the chassis (12), and the buffer plate (16) is installed on the four sets of first springs (15). The first fixture (02) includes a fixed base (21), four sets of columns (22), a dual-head motor (23), two sets of right-angle steering gears (24), two sets of lead screws (25), and a first pressing block (26). The bottom end of the fixed base (21) is connected to the top end of the workbench (11), the bottom end of the four sets of columns (22) is connected to the top end of the workbench (11), the dual-head motor (23) is mounted on the workbench (11), the output end of the dual-head motor (23) is connected to the input end of the two sets of right-angle steering gears (24), the output end of the two sets of right-angle steering gears (24) is connected to the input end of the two sets of lead screws (25) respectively, and the first pressing block (26) is slidably mounted on the four sets of columns (22) and the first pressing block (26) is connected to the two sets of lead screws (25) through threaded transmission. The second clamp (03) includes a movable base (31), two sets of handles (32), four sets of guide columns (33), four sets of second springs (34), and a second pressing block (35). The movable base (31) is slidably mounted on two sets of guide rails (13). Both sets of handles (32) are mounted on the movable base (31). All four sets of guide columns (33) are mounted on the movable base (31). The four sets of second springs (34) are respectively fitted on the four sets of guide columns (33). The second pressing block (35) is slidably mounted on the four sets of guide columns (33) and connected to the top of the four sets of second springs (34).
2. The ultra-high strength novel material mechanical property tensile fixture as described in claim 1, characterized in that, The surface of the fixed base (21), the first pressing block (26), the movable base (31), and the second pressing block (35) are all provided with pressure sensors.
3. The ultra-high strength novel material mechanical property tensile fixture as described in claim 1, characterized in that, The adjustment mechanism (04) includes a stepper motor (41), a rotating shaft (42) and an eccentric block (43). The stepper motor (41) is mounted on the movable base (31). The output end of the stepper motor (41) is connected to the input end of the rotating shaft (42). The eccentric block (43) is mounted on the rotating shaft (42).
4. The ultra-high strength novel material mechanical property tensile fixture as described in claim 1, characterized in that, The tensioning mechanism (05) includes a servo motor (51), a reducer (52), a take-up roller (53), a traction main rope (54), a connector (55), and multiple sets of traction branch ropes (56). The servo motor (51) is mounted on the housing (12). The output end of the servo motor (51) is connected to the input end of the reducer (52). The output end of the reducer (52) is connected to the input end of the take-up roller (53). One end of the traction main rope (54) is fixedly mounted on the take-up roller (53). The connector (55) is fixedly connected to the other end of the take-up roller (53). One end of each set of traction branch ropes (56) is connected to the connector (55), and the other end is connected to the movable base (31) at multiple points.
5. A tensile fixture for the mechanical properties of a novel ultra-high strength material as described in claim 4, characterized in that, It also includes a main traction rope (54) and multiple sets of traction sub-ropes (56), all of which are ultra-high molecular weight polyethylene fiber ropes.