Clamp device of universal material testing machine self-adaptive to test pieces of multiple specifications
By designing angle adjustment and adaptive clamping modules, the problem of cumbersome clamps when the test object is subjected to force at different angles is solved, realizing flexible adjustment and stable clamping of the test object's angle, and improving the testing efficiency and applicability of the universal testing machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-27
AI Technical Summary
Existing universal testing machines require frequent disassembly and reassembly of fixtures and tooling when the test object needs to be continuously tested for stress at different angles. This cumbersome operation process affects testing efficiency.
It adopts an angle adjustment module and an adaptive clamping module, and realizes the angle adjustment and clamping of the object to be measured through a worm gear mechanism and a drive motor, avoiding frequent disassembly of the fixture and improving work efficiency.
It enables flexible and convenient adjustment of the angle of the object being tested and stable clamping, avoiding frequent disassembly of the fixture and improving testing efficiency and clamping effect.
Smart Images
Figure CN224051771U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to testing machine technical field especially relates to a kind of fixture device of self-adapting multi-specification test piece of universal material testing machine. BACKGROUND
[0002] Universal material testing machine is also called universal tensile testing machine or electronic tensile testing machine, independent servo loading system, high-precision wideband electro-hydraulic servo valve, to ensure that the system is high-precision, high-efficiency, low-noise, fast response, uses independent hydraulic clamping system, to ensure that the system is low-noise and stable operation, and the test process sample is firmly clamped, and does not slip. Universal material testing machine is controlled by microcomputer full-digital wideband electro-hydraulic servo valve, drives precision hydraulic cylinder, and microcomputer control system carries out automatic control to test force, displacement, deformation in multiple modes, completes tensile test, compression test, bending test to sample, meets the requirements of national standard GB / T228-2010 "Metal Material Room Temperature Tensile Test Method" and other standard requirements. Electronic universal material testing machine is suitable for tensile test of rubber, plastic, textile, waterproof material, wire and cable, net rope, metal wire, metal rod, metal plate and other materials, and can be used for compression, bending and ring stiffness test by increasing accessories.
[0003] In the prior art, when the measured object needs to be continuously tested under different angles, the fixture tool needs to be frequently disassembled and installed to adjust the angle of the measured object, the operation steps are relatively cumbersome, which greatly affects the efficiency of the test work, and the use effect is not good. UTILITY MODEL CONTENTS
[0004] The utility model discloses a kind of fixture device of self-adapting multi-specification test piece of universal material testing machine, to solve the technical problem that when the measured object needs to be continuously tested under different angles, the fixture tool needs to be frequently disassembled and installed to adjust the angle of the measured object, operation steps are relatively cumbersome.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] The utility model provides a kind of universal material testing machine self-adapting multi-specification test piece's fixture device, including main frame body, the bottom inner wall of main frame body is fixedly connected with lower mounting seat, the top of lower mounting seat is fixedly connected with fixed table, angle adjusting module is provided on fixed table, and angle adjusting module includes movable table, movable table is movably connected to the top of fixed table, the top of movable table is fixedly connected with installation platform, and adaptive clamping module is provided on installation platform, and adaptive clamping module includes two-way threaded rod, two-way threaded rod is movably connected to the inner wall of installation platform, two-way threaded rod is connected with two mutually symmetrical sliding frames outside by screw thread, the bottom inner wall of two sliding frames is movably connected with multiple movable cylinder pieces at equal distance, the top of multiple movable cylinder pieces is fixedly connected with fixed shaft, the outer wall of multiple fixed shafts is fixedly connected with clamping plate piece, the top of fixed table is fixedly connected with fixed rod, and the bottom of movable table is fixedly connected with worm gear, worm gear is movably connected to the outside of fixed rod, circular hole is opened in fixed table, and worm is movably connected in circular hole, and worm and worm gear are engaged with each other, one end of worm is fixedly connected with adjusting piece, the inner wall of movable piece is fixedly connected with locking snap ring, and locking snap ring and worm gear are engaged with each other, the top of fixed table is fixedly connected with fixed piece, and the outer wall of one side of fixed piece is fixedly connected with two spring rods, and the end, away from fixed piece, of two spring rods is fixedly connected to movable piece.
[0007] When the measured object needs to be continuously tested under different angles, the angle adjusting module is provided, the movable piece is pushed to drive the locking snap ring to disengage from the worm gear, the locking of the movable table is released, the worm is rotated by the adjusting piece, the movable table drives the upper measured object to rotate to the specified angle, the angle can be flexibly and conveniently adjusted, the fixture needs not to be frequently disassembled and installed, the working efficiency is improved, the spring rod is elastically restored to push the movable piece to reset after the movable piece is loosened, relocking is performed, and deflection during work is avoided.
[0008] In a preferred scheme, multiple installation rod pieces are fixedly connected to the top of two sliding frames at equal distance, multiple installation grooves are opened in multiple installation rod pieces, multiple coil springs are fixedly connected in multiple installation grooves, and the end, away from installation rod piece, of multiple coil springs is fixedly connected to the inner wall of corresponding movable cylinder piece, installation hole and fixed hole are opened in installation platform, limit rod is fixedly connected in installation hole, two sliding frames are slid on the outside of limit rod, and driving motor is fixedly connected in fixed hole, the output end of driving motor is fixedly connected to one end of two-way threaded rod, electric sliding rail is provided on main frame body, and upper sliding frame is slidably connected on electric sliding rail, and upper mounting seat is fixedly connected to the bottom of upper sliding frame.
[0009] By setting up the adaptive clamping module, through the driving motor rotates the bidirectional threaded rod, drives the two sides sliding frame to slide to the center, until the multiple clamping plate pieces on both sides clamp the measured object, when the measured object surface is irregular, the clamping plate piece drives the fixed shaft and the movable cylinder piece to rotate to overcome the elastic action of the coil spring, to fit the measured object surface, avoid falling off in work, improve the clamping effect and applicability of the device to different shape specifications measured objects.
[0010] From the above, the utility model provides a kind of clamp device of universal material testing machine self-adapting multiple specifications test piece, when the measured object needs to be continuously tested under different angles of stress, the angle of measured object can be flexibly and conveniently adjusted, avoid the need to frequently dismount and install clamp, improve work efficiency, and clamping plate piece can fit the surface of different shape specifications measured object, avoid falling off in work, improve the clamping effect and applicability of the device. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 The overall structure schematic diagram of the clamp device of universal material testing machine self-adapting multiple specifications test piece is provided.
[0012] Figure 2 The fixed table structure schematic diagram of the clamp device of universal material testing machine self-adapting multiple specifications test piece is provided.
[0013] Figure 3 The angle adjusting module structure schematic diagram of the clamp device of universal material testing machine self-adapting multiple specifications test piece is provided.
[0014] Figure 4 The adaptive clamping module structure schematic diagram of the clamp device of universal material testing machine self-adapting multiple specifications test piece is provided.
[0015] In the drawings: 1, main frame body; 2, lower mounting seat; 3, fixed table; 4, installation table; 5, adaptive clamping module; 501, limit rod; 502, bidirectional threaded rod; 503, sliding frame; 504, clamping plate piece; 505, fixed shaft; 506, movable cylinder piece; 507, coil spring; 508, mounting rod piece; 509, driving motor; 6, angle adjusting module; 601, movable table; 602, worm gear; 603, movable piece; 604, locking ring; 605, worm; 606, adjusting piece; 607, spring rod; 7, electric sliding rail; 8, upper sliding frame; 9, upper mounting seat; 10, fixed rod; 11, fixed piece. DETAILED DESCRIPTION
[0016] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0017] The clamp device for the universal material testing machine self-adapting to multiple specifications of test pieces disclosed by the present application is mainly applied to the scene that the force under different angles needs to be continuously tested for the measured object, the clamp tool needs to be frequently disassembled and installed to adjust the angle of the measured object, and the operation steps are relatively complicated.
[0018] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Figures 1-4 A clamp device for a universal material testing machine self-adapting to multiple specifications of test pieces, comprising a main frame body 1, a lower mounting seat 2 is fixedly connected to the inner wall of the bottom of the main frame body 1, a fixed table 3 is fixedly connected to the top of the lower mounting seat 2, an angle adjusting module 6 is arranged on the fixed table 3, and the angle adjusting module 6 comprises a movable table 601, the movable table 601 is movably connected to the top of the fixed table 3, an installation table 4 is fixedly connected to the top of the movable table 601, an adaptive clamping module 5 is arranged on the installation table 4, and the adaptive clamping module 5 comprises a bidirectional threaded rod 502, the bidirectional threaded rod 502 is movably connected to the inner wall of the installation table 4, two symmetrical sliding racks 503 are threadedly connected to the outer part of the bidirectional threaded rod 502, a plurality of movable cylinder pieces 506 are movably connected to the inner wall of the bottom of the two sliding racks 503 at equal distances, a plurality of fixed shafts 505 are fixedly connected to the top of the plurality of movable cylinder pieces 506, a plurality of clamping plate pieces 504 are fixedly connected to the outer wall of the plurality of fixed shafts 505, a fixed rod 10 is fixedly connected to the top of the fixed table 3, a worm gear 602 is fixedly connected to the bottom of the movable table 601, the worm gear 602 is movably connected to the outer part of the fixed rod 10, a circular hole is formed in the fixed table 3, a worm 605 is movably connected in the circular hole, the worm 605 and the worm gear 602 are in mesh with each other, an adjusting piece 606 is fixedly connected to one end of the worm 605, a movable piece 603 is slidably connected to the inner wall of the fixed table 3, a locking snap ring 604 is fixedly connected to the inner wall of the movable piece 603, the locking snap ring 604 and the worm gear 602 are in mesh with each other, a fixed piece 11 is fixedly connected to the top of the fixed table 3, two spring rods 607 are fixedly connected to the outer wall of one side of the fixed piece 11, and one end of the two spring rods 607 away from the fixed piece 11 is fixedly connected to the movable piece 603.
[0019] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Figure 1 、 Figure 2 and Figure 4In a preferred embodiment, the top of the two sliding frames 503 is fixedly connected with a plurality of mounting rods 508 at equal distances, a plurality of mounting grooves are formed in the mounting rods 508, a plurality of coil springs 507 are fixedly connected in the mounting grooves, and the ends of the coil springs 507 away from the mounting rods 508 are fixedly connected to the inner walls of the corresponding movable cylinder members 506. The mounting table 4 is provided with mounting holes and fixing holes, a limiting rod 501 is fixedly connected in the mounting holes, the two sliding frames 503 slide on the outside of the limiting rod 501, and a driving motor 509 is fixedly connected in the fixing holes, the output end of the driving motor 509 is fixedly connected to one end of a bidirectional threaded rod 502. The main frame body 1 is provided with an electric sliding rail 7, and an upper sliding frame 8 is slidingly connected to the electric sliding rail 7, and an upper mounting seat 9 is fixedly connected to the bottom of the upper sliding frame 8.
[0020] Working principle: in use, the tested object is placed between the two sliding frames 503, and then the driving motor 509 is started to rotate the bidirectional threaded rod 502, which drives the two sliding frames 503 to slide towards the center until the multiple clamping plates 504 on the two sides clamp the tested object. When the surface of the tested object is irregular, the clamping plate 504 drives the fixed shaft 505 and the movable cylinder member 506 to rotate against the elastic action of the coil spring 507 to fit the surface of the tested object, so as to avoid falling off during work and improve the clamping effect and applicability. When the tested object needs to be continuously tested under different angles, the movable part 603 is pushed to compress the spring rod 607 to slide, the locking ring 604 is driven to disengage from the worm wheel 602, the locking of the movable table 601 is released, the worm 605 is rotated by the adjusting part 606, the worm wheel 602 is engaged and rotated, the movable table 601 drives the upper tested object to rotate to a specified angle, the angle can be flexibly and conveniently adjusted, the clamp does not need to be frequently disassembled, the working efficiency is improved, the movable part 603 is loosened, the spring rod 607 is elastically restored to push the movable part 603 to reset, and the locking is re-performed to avoid deflection during work.
[0021] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. According to the technical solution and the inventive concept of the present application, equivalent replacement or change should be covered within the protection scope of the present application.
Claims
1. A universal material testing machine self-adapting multi-specimen clamping device, comprising a main frame (1), characterized in that, The bottom inner wall of the main frame body (1) is fixedly connected with a lower mounting seat (2), the top of the lower mounting seat (2) is fixedly connected with a fixed table (3), an angle adjusting module (6) is arranged on the fixed table (3), and the angle adjusting module (6) comprises a movable table (601) movably connected to the top of the fixed table (3), the top of the movable table (601) is fixedly connected with a mounting table (4), an adaptive clamping module (5) is arranged on the mounting table (4), and the adaptive clamping module (5) comprises a bidirectional threaded rod (502) movably connected to the inner wall of the mounting table (4), the outer portion of the bidirectional threaded rod (502) is threadedly connected with two symmetrical sliding frames (503), the bottom inner walls of the two sliding frames (503) are movably connected with a plurality of movable cylinder pieces (506) at equal distances, the top of each movable cylinder piece (506) is fixedly connected with a fixed shaft (505), and the outer wall of each fixed shaft (505) is fixedly connected with a clamping plate (504).
2. The self-adapting multi-specimen gripping device of a universal material testing machine according to claim 1, wherein, The top of the fixed table (3) is fixedly connected with a fixed rod (10), the bottom of the movable table (601) is fixedly connected with a worm gear (602), the worm gear (602) is movably connected to the outer portion of the fixed rod (10), a circular hole is formed in the fixed table (3), a worm (605) is movably connected in the circular hole, the worm (605) and the worm gear (602) are in mesh with each other, and one end of the worm (605) is fixedly connected with an adjusting piece (606).
3. The self-adapting multi-specimen gripping device of a universal material testing machine according to claim 2, wherein, The inner wall of the fixed table (3) is slidably connected with a movable piece (603), the inner wall of the movable piece (603) is fixedly connected with a locking snap ring (604), and the locking snap ring (604) is in mesh with the worm gear (602).
4. The self-adapting multi-specimen gripping device of a universal material testing machine according to claim 3, wherein, The top of the fixed table (3) is fixedly connected with a fixed piece (11), and the outer wall of one side of the fixed piece (11) is fixedly connected with two spring rods (607), and the ends, away from the fixed piece (11), of the two spring rods (607) are fixedly connected to the movable piece (603).
5. The self-adapting multi-specimen gripping device of a universal material testing machine according to claim 1, wherein, The top of each of the two sliding frames (503) is fixedly connected with a plurality of mounting rod pieces (508) at equal distances, mounting grooves are formed in the plurality of mounting rod pieces (508), a coil spring (507) is fixedly connected in each mounting groove, and the end, away from the mounting rod piece (508), of each coil spring (507) is fixedly connected to the inner wall of a corresponding movable cylinder piece (506).
6. The self-adapting multi-specimen gripping device of a universal material testing machine according to claim 5, wherein, A mounting hole and a fixing hole are formed in the mounting table (4), a limiting rod (501) is fixedly connected in the mounting hole, the two sliding frames (503) are slidably arranged on the outer portion of the limiting rod (501), a driving motor (509) is fixedly connected in the fixing hole, and the output end of the driving motor (509) is fixedly connected to one end of the bidirectional threaded rod (502).
7. The self-adapting multi-specimen gripping device of a universal material testing machine according to claim 1, wherein, An electric sliding rail (7) is arranged on the main frame body (1), and an upper sliding frame (8) is slidably connected to the electric sliding rail (7), and the bottom of the upper sliding frame (8) is fixedly connected with an upper mounting seat (9).