Clamping module of bending test device

Abstract

The utility model belongs to the technical field of testing machines, and particularly relates to a clamping module of an anti-bending testing device, which comprises a testing machine frame body, a base, a hydraulic machine and a pressure head, the testing machine frame body is connected onto the base, the hydraulic machine is connected onto the testing machine frame body, and the pressure head is connected with an output end of the hydraulic machine. The device comprises a base and further comprises a module base, a synchronous telescopic mechanism, supporting blocks and a single-side clamping mechanism, the module base is connected to the base, the synchronous telescopic mechanism is arranged on the module base, the supporting blocks are symmetrically arranged in the length direction of the module base and connected with the synchronous telescopic mechanism through bolts, and the single-side clamping mechanism comprises a mounting hole, a rotating block, a rotating shaft and a clamping seat. The mounting hole is formed in the module base, the rotating block is connected in the mounting hole, the rotating shaft is connected to the rotating block, the clamping seat is rotationally connected to the rotating shaft, and the clamping seat is connected with the pressing block through a bolt; compared with the prior art, the double-side and single-side test conditions are provided at the same time, and the use convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test machine technical field especially, relates to a clamping module of bending test device. BACKGROUND

[0002] In the construction process, often need to carry out strength test to some materials, and the bending test is the important means of evaluating the bending resistance of materials. The existing bending test device clamping module has some defects in practical application. The traditional clamping module is often relatively simple structure, and the adaptability to different sizes and shapes of test samples is poor. Especially for some materials that need to be tested on one side, there is a lack of corresponding clamping module. Some unilateral clamping mechanism cannot firmly fix the test sample and cannot flexibly adjust the position, and the sample is easy to slide or shake during the test process, which leads to deviation of test data and usually needs to replace the clamping seat separately, and the operation convenience is poor. In addition, for different types of samples, the traditional clamping module lacks flexibility, and for some samples with relatively fragile surfaces, the ordinary rigid clamping method is easy to cause damage to the sample surface, which affects the reliability of the test.

[0003] Therefore, it is necessary to develop a new clamping module to solve these problems, so as to improve the accuracy, efficiency and application range of the bending test. CONTENT OF THE UTILITY MODEL

[0004] The utility model in the prior art, develops a kind of clamping module of bending test device, and it has the condition of bilateral and unilateral test simultaneously, and the convenience of use is improved.

[0005] The technical scheme that the utility model solves technical problem is as follows: a kind of clamping module of bending test device, including test frame body, base, hydraulic press and pressure head, the test frame body is connected on base, the hydraulic press is connected on test frame body, the pressure head is connected with the output end of hydraulic press, still include module base, synchronous telescopic mechanism, support block and unilateral clamping mechanism, the module base is connected on base, the synchronous telescopic mechanism is set on module base, the support block is symmetrically set in module base length direction and is connected with synchronous telescopic mechanism by bolt, the unilateral clamping mechanism includes mounting hole, rotating block, pivot and clamping seat, the mounting hole is set on module base, the rotating block is connected in mounting hole, the pivot is connected on rotating block, the clamping seat is rotatably connected on pivot, and the pressure block is connected on the clamping seat by bolt.

[0006] As preferred, the synchronous telescopic mechanism includes lead screw and ball slide, the lead screw is rotatably connected in module base along module base length direction, the ball slide is connected with lead screw, and the support block is connected with ball slide.

[0007] As preferred, one end of the positive and reverse screw rod is provided with an adjusting knob.

[0008] As preferred, the mounting hole is divided into two sections, and the vertical projections of the two sections are respectively a circle and an inscribed square of the circle, wherein the section with the vertical projection of the circle is arranged close to the surface of the module base; and the rotating block is arranged in the shape fitting mounting hole.

[0009] As preferred, the rotating block is connected in the mounting hole through a telescopic piece, the telescopic piece is hollow inside, one end is connected in the mounting hole through a bolt, and the other end is detachably connected with the rotating block.

[0010] As preferred, the mounting holes are arranged in an array on the module base.

[0011] As preferred, a flexible pad is arranged on one side of the clamping seat close to the pressing block.

[0012] As preferred, a scale is arranged on the module base.

[0013] The effects provided in the content of the utility model are only the effects of the embodiments, and are not all the effects of the utility model. The above technical solutions have the following advantages or beneficial effects:

[0014] 1. By arranging the unilateral clamping mechanism, various test modes can be realized, and the convenience of use is improved.

[0015] 2. By arranging the synchronous telescopic mechanism, the synchronous telescoping of the supporting block can be realized, and the error caused by unilateral adjustment one by one is avoided, so as to affect the test results.

[0016] 3. By arranging the rubber pad on the clamping seat, the stress concentration on the clamping seat during unilateral bending test can be avoided, so as to affect the test results, especially for samples with relatively fragile surfaces, the compatibility of different types of samples is improved, and the reliability of the test results is ensured.

[0017] 4. By designing the mounting hole into two sections, the outer circle and the inner square, and the square is an inscribed square of the circle, the position of the rotating shaft can be adjusted and temporarily fixed, the mounting holes are arranged in an array, and the length of the test material can be adjusted to a suitable position.

[0018] 5. By arranging the telescopic piece on the rotating block, the rotating block can be prevented from falling out of the mounting hole under the premise of normal use, and when the position of the corresponding mounting hole needs to be adjusted, the telescopic piece is disassembled, and the unilateral clamping mechanism is installed into a suitable mounting hole. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front view of the utility model;

[0020] Figure 2 It isFigure 1 Partial enlarged view of the middle A region;

[0021] Figure 3 Overall structural view for single-sided clamping mechanism storage state;

[0022] Figure 4 For Figure 3 Partial enlarged view of the middle A region;

[0023] Figure 5 Structure schematic view of the utility model rotating block, rotating shaft and telescopic piece;

[0024] Figure 6 Internal structure view of the utility model module base;

[0025] Figure 7 Overall structural view for single-sided clamping mechanism use state;

[0026] Figure 8 For Figure 7 Partial enlarged view of the middle A region.

[0027] Wherein: 1, test rack body; 101, base; 2, hydraulic machine; 21, pressure head; 3, module base; 4, positive and negative screw rod; 41, adjusting knob; 5, ball slide; 6, support block; 7, mounting hole; 8, rotating block; 81, telescopic rod; 9, rotating shaft; 10, clamping seat; 11, pressing block; 12, flexible pad. DETAILED DESCRIPTION

[0028] In order to clearly illustrate the technical features of the present scheme, the utility model will be described in detail below through specific implementation manner, and in combination with its drawings.

[0029] Example 1

[0030] Referring to Figures 1 to 8 A clamping module of a bending resistance test device, comprising a test rack body 1, a base 101, a hydraulic machine 2 and a pressure head 21, the test rack body is connected on the base 101, the hydraulic machine 2 is connected on the test rack body 1, the pressure head 21 is connected with the output end of the hydraulic machine 2, further comprising a module base 3, a synchronous telescopic mechanism, a support block 6 and a single-sided clamping mechanism, the module base 3 is connected on the base 101, the synchronous telescopic mechanism is arranged on the module base 3, the support block 6 is symmetrically arranged in the length direction of the module base 3 and is connected with the synchronous telescopic mechanism through bolts, the single-sided clamping mechanism comprises a mounting hole 7, a rotating block 8, a rotating shaft 9 and a clamping seat 10, the mounting hole 7 is arranged on the module base 3, the rotating block 8 is connected in the mounting hole 7, the rotating shaft 9 is connected on the rotating block 8, the clamping seat 10 is rotatably connected on the rotating shaft 9, and the pressing block 11 is connected on the clamping seat 10 through bolts.

[0031] As Figure 6 shown, the synchronous telescopic mechanism comprises a reversible screw rod 4 and a ball slider 5, the reversible screw rod 4 is rotationally connected in the module base 3 along the length direction of the module base 3, the ball slider 5 is connected with the reversible screw rod 4, and the supporting block 6 is connected with the ball slider 5.

[0032] As Figure 1 and Figure 6 shown, one end of the reversible screw rod 4 is provided with an adjusting knob 41.

[0033] As Figure 1 and Figure 2 shown, the mounting hole 7 is divided into two sections, and the vertical projections of the two sections are respectively a circle and an inscribed square of the circle, wherein the section with the vertical projection of the circle is arranged close to the surface of the module base 3; the rotating block 8 is arranged in cooperation with the mounting hole 7.

[0034] As Figure 5 shown, the rotating block 8 is connected in the mounting hole 7 through a telescopic piece, the telescopic piece is a hollow structure, one end is connected in the mounting hole 7 through a bolt, and the other end is detachably connected with the rotating block 8.

[0035] As Figure 1 , Figure 3 and Figure 7 shown, the mounting holes 7 are arranged in an array on the module base 3.

[0036] As Figure 4 and Figure 8 shown, the clamping seat 10 is provided with a flexible pad 12 on the side close to the pressing block 11.

[0037] As Figure 4 and Figure 8 shown, the module base 3 is provided with a scale.

[0038] Principle and operation process

[0039] The unilateral clamping mechanism of the utility model comprises a mounting hole 7, a rotating block 8, a rotating shaft 9 and a clamping seat 10, and provides multiple possibilities for tests. The special design of the mounting hole 7 enables the rotating block 8 to rotate flexibly in the circular part, so as to adjust the angle of the clamping seat 10. When temporary fixing is needed, the rotating block 8 is pushed inward to the square part to realize stable positioning. By connecting the rotating shaft 9 on the rotating block 8 and rotatingly connecting the clamping seat 10 on the rotating shaft 9, the unilateral clamping mechanism can be stored when bilateral tests are needed and taken out when unilateral tests are needed.

[0040] The synchronous extension mechanism is composed of a positive and negative screw rod 4 and a ball slide 5. The positive and negative screw rod 4 is rotationally connected in the module base 3 along the length direction of the module base 3. When the positive and negative screw rod 4 is rotated, the ball slide 5 connected with the positive and negative screw rod 4 will move synchronously in the same direction or in the opposite direction due to the characteristics of the positive and negative screw thread. The support block 6 is connected with the ball slide 5, so that the support block 6 can be synchronously extended and retracted. This synchronous adjustment mode avoids errors that may be generated when the support block 6 is adjusted one by one on one side, ensures that the test material is uniformly stressed during the supporting process, and further ensures the accuracy of the test results.

[0041] A flexible pad 12 is arranged on the clamping seat 10 near one side of the pressing block 11. When the unilateral bending test is performed, the test material is in contact with the clamping seat 10. The flexible pad 12 has good buffering performance and can uniformly disperse the pressure on the test material, avoiding stress concentration on the clamping seat 10. Because stress concentration may cause abnormal deformation or damage of the test material at the clamping position in advance, affecting the accuracy and reliability of the test results, the existence of the flexible pad 12 effectively solves this problem.

[0042] The mounting hole 7 is divided into two sections, and the vertical projections are circular and inscribed square of the circular, respectively. The circular section is close to the surface of the module base 3. This design allows the rotating block 8 to rotate freely in the circular section, facilitating the adjustment of the position of the rotating shaft 9 and the clamping seat 10. When it is necessary to fix, the rotating block 8 is rotated to enter the square section. Due to the limiting effect of the square, the rotating block 8 cannot rotate freely, thereby achieving temporary fixation. In addition, the mounting holes 7 are arranged in an array on the module base 3. Users can select the appropriate mounting hole 7 according to the length of the test material, and install the unilateral clamping mechanism at the position to meet the clamping requirements of test materials of different lengths. The rotating block 8 is connected in the mounting hole 7 through a telescopic piece. The telescopic piece has a hollow structure, one end of which is connected to the mounting hole 7 through a bolt, and the other end is detachably connected with the rotating block 8. During normal use, the telescopic piece can ensure the normal rotation of the rotating block 8 in the mounting hole 7, while preventing it from falling out of the mounting hole 7. When it is necessary to adjust the unilateral clamping mechanism to different mounting hole 7 positions, the telescopic piece is only needed to be disassembled, the rotating block 8 is taken out from the current mounting hole 7, and then is installed in the appropriate mounting hole 7, and the telescopic piece is reconnected. The operation is simple and convenient.

[0043] A scale is arranged on the module base 3. When the unilateral clamping mechanism is installed or the test material is placed, the position can be accurately determined according to the scale. The scale plays an intuitive measuring and positioning role, which helps to improve the operation accuracy of the test device and the accuracy of the test results.

[0044] When the unilateral bending test is carried out, the rotating block 8 is first connected to the selected mounting hole 7 through the telescopic part, the two supporting blocks 6 are moved to the two ends of the module base 3, one end of the telescopic part is connected in the mounting hole 7 through the bolt, and the other end is connected with the rotating block 8 through the buckle and the like detachable manner, the rotating shaft 9 is connected to the rotating block 8, the connection is firm and flexible, the clamping seat 10 is rotatably connected to the rotating shaft 9, the pressing block 11 is connected on the clamping seat 10 through the bolt, the position of the pressing block 11 is adjusted according to the thickness of the test material, and the pressing block 11 can effectively press the test material. The flexible pad 12 is installed on one side of the clamping seat 10 close to the pressing block 11, so that stress concentration in the test process is avoided.

[0045] When the bilateral bending test is carried out, the unilateral clamping mechanism is first stored, and then the adjusting knob 41 on the reversible screw rod 4 is rotated according to the length of the test material. The reversible screw rod 4 is driven to rotate through the adjusting knob 41, so that the ball sliding block 5 connected with the reversible screw rod 4 moves along the screw rod axis, and since the supporting block 6 is connected with the ball sliding block 5 through the bolt, the supporting block 6 is driven to synchronously extend and retract by rotating the adjusting knob 41, the test material to be tested is placed on the supporting block 6, and the center of the material is aligned with the center of the test device.

[0046] Although the specific embodiments of the utility model are described in combination with the drawings, it is not a limitation on the protection scope of the utility model, and various modifications or deformations made by the person skilled in the art on the basis of the technical scheme of the utility model without creative labor are still within the protection scope of the utility model.

Claims

1. A clamping module of a bending test device, comprising a test frame body (1), a base (101), a hydraulic machine (2) and a pressure head (21), the test frame body (1) is connected to the base (101), the hydraulic machine (2) is connected to the test frame body (1), and the pressure head (21) is connected to the output end of the hydraulic machine (2), characterized in that: It also includes module base (3), synchronous telescopic mechanism, support block (6) and one-sided clamping mechanism, the module base (3) is connected to the present base (101), the synchronous telescopic mechanism is arranged on the module base (3), the support block (6) is symmetrically arranged in the length direction of the module base (3) and is connected with the synchronous telescopic mechanism by bolts, the one-sided clamping mechanism includes mounting hole (7), rotating block (8), rotating shaft (9) and clamping seat (10), the mounting hole (7) is arranged on the module base (3), the rotating block (8) is connected in the mounting hole (7), the rotating shaft (9) is connected on the rotating block (8), the clamping seat (10) is rotatably connected on the rotating shaft (9), the clamping seat (10) is connected with the pressure block (11) by bolts. ​ 2. A clamping module for a bending test apparatus according to claim 1, characterized in that The synchronous telescopic mechanism includes positive and negative screw rod (4) and ball slide (5), the positive and negative screw rod (4) is rotatably connected in the module base (3) along the length direction of the module base (3), the ball slide (5) is connected with the positive and negative screw rod (4), the support block (6) is connected with the ball slide (5).

3. A clamping module for a bending test apparatus according to claim 2, wherein One end of the positive and negative screw rod (4) is provided with an adjusting knob (41).

4. The clamping module of the bending test apparatus according to claim 1, wherein The mounting hole (7) is divided into two sections, and the vertical projections of the two sections are respectively a circle and an inscribed square of a circle, wherein the section with vertical projection as a circle is arranged close to the surface of the module base (3); the rotating block (8) is arranged in shape with the mounting hole (7).

5. The clamping module of the bending test apparatus according to claim 1, wherein The rotating block (8) is connected in the mounting hole (7) through the telescopic piece, the telescopic piece is a hollow structure, one end is connected in the mounting hole (7) through bolts, and the other end is detachably connected with the rotating block (8).

6. The clamping module of a bending test apparatus according to claim 1, wherein The mounting hole (7) is arranged in array on the module base (3).

7. The clamping module of the bending test apparatus according to claim 1, wherein A flexible pad (12) is arranged on one side of the clamping seat (10) close to the pressure block (11).

8. The clamping module of the bending test apparatus according to claim 1, wherein The module base (3) is provided with a scale.

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