Universal material testing machine

Abstract

The utility model discloses a universal material testing machine which comprises a base, a fixed table, a movable table, a hydraulic cylinder, an upper chuck and a lower chuck, the two hydraulic cylinders are symmetrically and detachably connected between the fixed table and the movable table; the upper end of the upper chuck is detachably connected with the lower end of the movable table; the lower end of the lower chuck is detachably connected with the fixed table; and the upper chuck and the lower chuck are coaxially arranged. The utility model has the advantages that the upper chuck and the lower chuck are arranged, so that the effective fixation of a material sample is effectively ensured; the clamping parts are arranged on the upper clamping head and the lower clamping head, so that the convenience of clamping a material sample is ensured; the first connecting plate, the first hydraulic telescopic cylinder, the second connecting plate, the clamping piece and the lug base are matched for use, so that the stability of a material sample is guaranteed, meanwhile, the working intensity is effectively reduced, the working time of testers is prolonged, and meanwhile, the test safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material testing, and particularly relates to a universal material testing machine. Background Art

[0002] The universal material testing machine is also called a universal tensile machine or an electronic tensile machine. The universal material testing machine is a general experimental device for testing the mechanical properties of materials. The universal material testing machine can apply various types of forces to the material samples and measure the deformation and failure of the materials under these forces. However, when the existing fixtures of the universal material testing machine are used to clamp the material samples, it is often necessary to manually tighten the bolts to fix the material samples. This method is time-consuming and laborious, and manual tightening cannot reach the standard tightening position, so it is easy to cause the danger that the material samples break away from the fixtures during the test. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a universal material testing machine.

[0004] To solve the above technical problem, the technical solution of the utility model is as follows:

[0005] A universal material testing machine includes a base, a fixed table, a movable table, and also includes a hydraulic cylinder, an upper chuck, and a lower chuck; two hydraulic cylinders are provided and are symmetrically and detachably connected between the fixed table and the movable table; the upper end of the upper chuck is detachably connected to the lower end of the movable table; the lower end of the lower chuck is detachably connected to the fixed table; the upper chuck and the lower chuck are coaxially arranged.

[0006] Further, the lower chuck includes a connecting seat, a supporting table, and a clamping part; the upper end of the connecting seat is detachably connected to the lower end of the supporting table; two groups of clamping parts are symmetrically and detachably connected to the upper end of the supporting table; the structure of the upper chuck is the same as that of the lower chuck.

[0007] Further, the clamping part includes a first connecting plate, a first hydraulic telescopic cylinder, a second connecting plate, a clamping member, and an ear seat; the lower ends of the first connecting plate, the second connecting plate, and the ear seat are all detachably connected to the supporting table; the rear end of the cylinder body of the first hydraulic telescopic cylinder is detachably connected to the upper end of the first connecting plate; the front end of the cylinder body of the first hydraulic telescopic cylinder is detachably connected to the upper end of the second connecting plate; the telescopic end of the first hydraulic telescopic cylinder is connected to the upper end of the clamping member; the lower end of the clamping member is rotatably connected to the upper end of the ear seat; the first hydraulic telescopic cylinder is horizontally arranged.

[0008] Further, the clamping member includes a clamping main body and a contact section; the clamping main body and the contact section are integrally formed.

[0009] Further, the shape of the second connecting plate is "L".

[0010] Furthermore, a protective frame is detachably connected to the upper end of the fixed table; both ends of the side surface of the protective cover are rotatably connected with protective frame doors.

[0011] Furthermore, two hanging ears are fixedly connected to the upper end of the movable table.

[0012] Advantages of the utility model:

[0013] By providing the upper chuck and the lower chuck, the effective fixation of the material sample is effectively ensured; by providing the clamping parts on the upper chuck and the lower chuck, the convenience of clamping the material sample is ensured; through the cooperation of the first connecting plate, the first hydraulic telescopic cylinder, the second connecting plate, the clamping part and the ear seat, the stability of the material sample is ensured, and at the same time, the working intensity is effectively reduced, the working time of the test personnel is improved, and the safety of the test is improved; by providing the protective frame and the protective frame doors, the safety of the test personnel is further ensured. Description of the drawings

[0014] Figure 1 is a structural schematic diagram of the utility model;

[0015] Figure 2 is a structural schematic diagram of the utility model with the protective frame doors removed;

[0016] Figure 3 is a structural schematic diagram of the lower chuck;

[0017] Figure 4 is a structural schematic diagram of the clamping part.

[0018] In the figure, 1 - base, 2 - fixed table, 3 - movable table, 4 - hydraulic cylinder, 5 - upper chuck, 6 - lower chuck, 7 - protective frame, 8 - protective frame doors, 9 - hanging ears;

[0019] 61 - connecting seat, 62 - support table, 63 - clamping part;

[0020] 631 - first connecting plate, 632 - first hydraulic telescopic cylinder, 633 - second connecting plate, 634 - clamping part, 635 - ear seat;

[0021] 6341 - clamping main body, 6342 - contact section. Specific embodiments

[0022] The following further describes the specific embodiments of the utility model with reference to the drawings. It should be noted here that the description of these embodiments is for helping to understand the utility model, but does not constitute a limitation to the utility model. In addition, the technical features involved in the various embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Refer to Figures 1-4 As shown, a universal material testing machine includes a base 1, a fixed table 2, a movable table 3, and also includes a hydraulic cylinder 4, an upper chuck 5, and a lower chuck 6; two hydraulic cylinders 4 are provided and are symmetrically and detachably connected between the fixed table 2 and the movable table 3; the upper end of the upper chuck 5 is detachably connected to the lower end of the movable table 3; the lower end of the lower chuck 6 is detachably connected to the fixed table 2; the upper chuck 5 and the lower chuck 6 are coaxially arranged.

[0024] The base 1 in the universal material testing machine can connect the device to the ground to ensure the stability of the device during operation; the fixed table 2 is a container for the remaining components of the device and plays a supporting role; the movable table 3 is located at the top, and the hydraulic cylinder 4 is located between the fixed table 2 and the movable table 3 to facilitate height adjustment during the test to adapt to the material sample; the upper chuck 5 and the lower chuck 6 can firmly fix the material sample.

[0025] Specifically, the lower chuck 6 includes a connecting seat 61, a support table 62, and a clamping portion 63; the upper end of the connecting seat 61 is detachably connected to the lower end of the support table 62; two groups of clamping portions 63 are symmetrically and detachably connected to the upper end of the support table 62; the structure of the upper chuck 5 is the same as that of the lower chuck 6. The connecting seat 61 facilitates the stable connection of the lower chuck 6 and the upper chuck 5 to other components; the support table 62 can meet the reasonable arrangement of the clamping portions 63; the two groups of clamping portions 63 can effectively clamp and fix the material sample.

[0026] Specifically, the clamping portion 63 includes a first connecting plate 631, a first hydraulic telescopic cylinder 632, a second connecting plate 633, a clamping member 634, and an ear seat 635; the lower ends of the first connecting plate 631, the second connecting plate 633, and the ear seat 635 are all detachably connected to the support table 62; the rear end of the cylinder body of the first hydraulic telescopic cylinder 632 is detachably connected to the upper end of the first connecting plate 631; the front end of the cylinder body of the first hydraulic telescopic cylinder 632 is detachably connected to the upper end of the second connecting plate 633; the telescopic end of the first hydraulic telescopic cylinder 632 is connected to the upper end of the clamping member 634; the lower end of the clamping member 634 is rotatably connected to the upper end of the ear seat 635; the first hydraulic telescopic cylinder 632 is horizontally arranged.

[0027] The first connecting plate 631 is used to fix the rear end of the cylinder body of the first hydraulic telescopic cylinder 632; similarly, the second connecting plate 633 is used to fix the front end of the cylinder body of the first hydraulic telescopic cylinder 632; the first hydraulic telescopic cylinder 632 can extend and retract to drive the clamping member 634 to rotate around the ear seat 635 to clamp the material sample.

[0028] Specifically, the clamping member 634 includes a clamping body 6341 and a contact section 6342; the clamping body 6341 and the contact section 6342 are integrally formed. When the telescopic end of the first hydraulic telescopic cylinder 632 is in a contracted state, the lower end of the contact section 6342 forms an acute angle with the horizontal plane. This setting is such that when clamping, after the clamping member 634 rotates, it can contact the material sample to the greatest extent, thereby ensuring the contact surface and making the contact more stable.

[0029] Specifically, to facilitate the connection of the second connecting plate 633, the second connecting plate 633 is in an "L" shape.

[0030] Specifically, to protect the safety of the test personnel, a protective frame 7 is detachably connected to the upper end of the fixed table 2; both ends of the side surface of the protective cover 7 are rotatably connected with protective frame doors 8.

[0031] Specifically, to facilitate the movement of the universal material testing machine, two hanging ears 9 are fixedly connected to the upper end of the movable table 3.

[0032] The working principle of the present utility model:

[0033] When conducting a test, first open the protective frame door 8, then start the hydraulic cylinder 4 to adapt to the height of the material sample, and then place the material sample between the upper chuck 5 and the lower chuck 6. At this time, the telescopic end of the first hydraulic telescopic cylinder 632 is in a contracted state. Start the first hydraulic telescopic cylinder 632 to drive the clamping member 634 to rotate, so that the contact section 6342 fits the material sample to the greatest extent, ensuring the stability of the material sample. At the same time, the working intensity is effectively reduced, the working time of the test personnel is increased, and the safety of the test is improved; under the action of the two clamping parts 634, the upper and lower ends of the material sample are stably clamped; then close the protective frame door 8, so that the entire test is carried out within the protective frame 7, effectively ensuring the safety of the test personnel.

[0034] The above has described the embodiments of the present utility model in detail with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present utility model, various changes, modifications, substitutions, and variations to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A universal material testing machine, comprising a base (1), a fixed platform (2), and a movable platform (3), characterized in that: It also includes a hydraulic cylinder (4), an upper chuck (5), and a lower chuck (6); two hydraulic cylinders (4) are provided, and are symmetrically and detachably connected between the fixed platform (2) and the movable platform (3); the upper end of the upper chuck (5) is detachably connected to the lower end of the movable platform (3); the lower end of the lower chuck (6) is detachably connected to the fixed platform (2); the upper chuck (5) and the lower chuck (6) are coaxially arranged.

2. The universal material testing machine according to claim 1, characterized in that: The lower chuck (6) comprises a connecting seat (61), a supporting platform (62), and a clamping portion (63); the upper end of the connecting seat (61) is detachably connected to the lower end of the supporting platform (62); the upper end of the supporting platform (62) is symmetrically detachably connected with two groups of clamping portions (63); the structure of the upper chuck (5) is the same as that of the lower chuck (6).

3. The universal material testing machine according to claim 2, characterized in that: The clamping part (63) comprises a first connecting plate (631), a first hydraulic telescopic cylinder (632), a second connecting plate (633), a clamping piece (634), and an ear seat (635); the lower ends of the first connecting plate (631), the second connecting plate (633) and the ear seat (635) are all detachably connected to the support platform (62); the rear end of the cylinder body of the first hydraulic telescopic cylinder (632) is detachably connected to the upper end of the first connecting plate (631); the front end of the cylinder body of the first hydraulic telescopic cylinder (632) is detachably connected to the upper end of the second connecting plate (633); the telescopic end of the first hydraulic telescopic cylinder (632) is connected to the upper end of the clamping piece (634); the lower end of the clamping piece (634) is rotatably connected to the upper end of the ear seat (635); the first hydraulic telescopic cylinder (632) is arranged horizontally.

4. The universal material testing machine according to claim 3, characterized in that: The clamping member (634) comprises a clamping body (6341) and a contact section (6342); the clamping body (6341) and the contact section (6342) are integrally formed.

5. The universal material testing machine according to claim 3, characterized in that: The second connecting plate (633) is in an "L" shape.

6. The universal material testing machine according to claim 1, characterized in that: The upper end of the fixing platform (2) is detachably connected to a protection frame (7); and both ends of the side surfaces of the protection frame (7) are rotatably connected to protection frame doors (8).

7. The universal material testing machine according to claim 1, characterized in that: The upper end of the movable platform (3) is fixedly connected with two hanging ears (9).

Images