Computer tension tester convenient to fix

Abstract

The utility model relates to the technical field of tension testing machines, in particular to a computer tension testing machine convenient to fix, which comprises a base, the top of the base is fixedly connected with a stand column, the front surface of the stand column is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a sliding block, and the bottom of the sliding block and the top of the base are respectively provided with a clamping assembly; when a pulling force is applied, the pulling force acts on the connecting seat and the connecting block preferentially, so that the pulling force detector between the connecting seat and the connecting block can sense the pulling force conveniently, and an object to be detected is clamped by the clamping block on the scissor-shaped connecting rod, so that when the pulling force on the connecting block is transmitted to the scissor-shaped connecting rod through the hinge rod, the object to be detected is clamped. When the clamping force is applied to the scissor-shaped connecting rod, the closing force and the dragging pulling force are simultaneously applied to the scissor-shaped connecting rod, and when the dragging pulling force is increased, the applied closing force is synchronously increased, so that the clamping force is continuously applied in the detection process, and the clamping stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of tensile testing machine technology, specifically a computer-controlled tensile testing machine that is easy to fix. Background Technology

[0002] Computer-controlled servo tensile testing machines connect to a computer, allowing the computer to control the machine and display the data during the test. This makes the test results more accurate and less prone to error. It is crucial to ensure the test items are securely fixed during testing; any looseness can lead to measurement errors.

[0003] Existing technology, such as patent announcement number CN215179246U, provides a computer-servoed tensile testing machine with a limit function, including a base, a protective door, and a connecting plate. A mounting plate is installed on the top of the base, and a fixing frame is installed on the top of the mounting plate. A first sliding groove is installed on the front of the fixing frame, and a protective door is movably installed on the front of the first sliding groove. A second sliding groove is opened on the inner side of the fixing frame, and a slider is movably installed on the inner side of the second sliding groove. A connecting plate is installed on one side of the slider. A replacement groove is installed on the bottom inner wall of the fixing frame. A tensile detector is movably installed inside the replacement groove via a fixing rod. A connecting rod is installed on the top of the tensile detector, and a limit groove is installed on the top of the connecting rod. This utility model, by installing a protective door on the front of the mounting frame, allows the protective door to be closed via a sliding device when a tensile test is required, preventing injury to workers from broken objects.

[0004] The current design uses locking bolts and a fixing plate to secure the object. While this provides a stable clamping force by converting the rotational force of the locking bolts into a linear movement of the fixing plate, it fails to adapt to changes in the object's volume during tensile testing. This can lead to the object slipping off, affecting the tensile test results. Therefore, we propose a computer-controlled tensile testing machine that facilitates easier fixation. Utility Model Content

[0005] The purpose of this utility model is to provide a computer tensile testing machine that is easy to fix. This computer tensile testing machine that is easy to fix solves the problem that when clamping some objects that are prone to deformation during tensile testing, the fixing plate cannot change with the change of the object's volume, which can easily cause the clamped object to fall off and affect the tensile test.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A computer tensile testing machine that is easy to fix includes a base, a column fixedly connected to the top of the base, a groove on the front of the column, a slider slidably connected to the inner wall of the groove, and clamping components respectively provided at the bottom of the slider and the top of the base.

[0008] The clamping assembly includes a connecting seat, a connecting block, a scissor-type connecting rod, a hinge rod, and clamping blocks. The connecting block is slidably connected to the inner wall of the connecting seat. A tension detector is provided between the connecting block and the connecting seat. The two hinge rods are respectively hinged to the two sides of the connecting block at the outer end of the connecting seat. The two connecting rods of the scissor-type connecting rod are respectively hinged to the hinge rod at the corresponding position. The two clamping blocks are respectively hinged to the scissor-type connecting rod at the end away from the hinge rod.

[0009] Preferably, a lead screw is rotatably connected to the inner wall of the slide, and the lead screw is threadedly connected to the slider. A servo motor for driving the lead screw to rotate is installed inside the base.

[0010] Preferably, the end of the scissor-type connecting rod closer to the clamping block is shorter than the end farther from the clamping block, and is arranged in an arc shape.

[0011] Preferably, the inner wall of the clamping block has a cavity, and the clamping surface of the clamping block has a plurality of through holes at the positions corresponding to the cavity, and the inner wall of each through hole is slidably connected to a movable block.

[0012] Preferably, a limiting block is fixedly connected to one end of the movable block inside the cavity, and the other end of the movable block outside the cavity is arranged in an arc shape.

[0013] Preferably, a push block is fixedly connected at the intersection of the scissor-type connecting rods.

[0014] Preferably, a positioning block is fixedly connected to the outer wall of the connecting block at the position corresponding to the push block, a sliding rod is slidably connected to the inner wall of the positioning block, one end of the sliding rod is fixedly connected to the push block, and a spring is movably sleeved on the outer wall of the sliding rod at the position between the push block and the positioning block.

[0015] By employing the above technical solution, this utility model provides a computer tensile testing machine that is easy to fix. It possesses at least the following beneficial effects:

[0016] I. This utility model uses two sets of clamping components to clamp the object to be tested. When pressure or tension is applied, the tension will preferentially act on the connecting seat and the connecting block, so that the tension detector between the connecting seat and the connecting block can sense the magnitude of the tension. Since the object to be tested is clamped by the clamping block on the scissor-shaped connecting rod, when the tension on the connecting block is transmitted to the scissor-shaped connecting rod through the hinge rod, it will simultaneously apply a closing force and a dragging force to the scissor-shaped connecting rod. When the dragging force increases, the applied closing force will also increase synchronously to maintain a continuous clamping force during the detection process and ensure the stability of the clamping. This ensures sufficient stability when clamping objects that are prone to deformation.

[0017] II. This utility model uses a push block at the intersection of the scissor-type connecting rods. When it is necessary to clamp an item, the push block can be pushed towards the positioning block to open the scissor-type connecting rods, making it easier to put the item in. After the item is put in, the push block can be released, and the tension of the spring will push the push block to return to its original position, causing the scissor-type connecting rods to close and drive the clamping block to clamp the item. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the clamping component in this utility model;

[0021] Figure 3 This is a schematic diagram of the scissor-type connecting rod in this utility model;

[0022] Figure 4 This is a partial cross-sectional view of the clamping block in this utility model.

[0023] In the diagram: 1. Base; 2. Column; 3. Slide groove; 4. Slider; 5. Clamping assembly; 50. Connecting seat; 51. Connecting block; 52. Scissor-type connecting rod; 53. Hinge rod; 54. Clamping block; 541. Cavity; 542. Through hole; 543. Movable block; 544. Limiting block; 55. Push block; 56. Positioning block; 57. Slide rod; 58. Spring; 6. Lead screw. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] A computer-controlled tensile testing machine that is easy to fix, such as Figure 1 - Figure 4 As shown, the system includes a base 1, with a column 2 fixedly connected to the top of the base 1. A groove 3 is formed on the front of the column 2, and a slider 4 is slidably connected to the inner wall of the groove 3. Clamping assemblies 5 are respectively provided at the bottom of the slider 4 and the top of the base 1. The clamping assembly 5 includes a connecting seat 50, a connecting block 51, a scissor-type connecting rod 52, a hinge rod 53, and a clamping block 54. The connecting block 51 is slidably connected to the inner wall of the connecting seat 50. A tension detector is provided between the connecting block 51 and the connecting seat 50. Two hinge rods 53 are respectively hinged to the connecting block 50. Connecting blocks 51 are located on both sides of one end of the connecting seat 50. The two connecting rods of the scissor-type connecting rod 52 are respectively hinged to the corresponding hinge rods 53. The two clamping blocks 54 are respectively hinged to the scissor-type connecting rod 52 at the end away from the hinge rods 53. The inner wall of the slide groove 3 is rotatably connected to the lead screw 6, and the lead screw 6 is threadedly connected to the slider 4. The base 1 is equipped with a servo motor that drives the lead screw 6 to rotate. The end of the scissor-type connecting rod 52 near the clamping block 54 is shorter than the end away from the clamping block 54 and is arranged in an arc shape.

[0026] In this embodiment, by setting two sets of clamping components 5 to clamp the object to be tested, when the servo motor drives the lead screw 6 to rotate, the slider 4 slides on the inner wall of the groove 3, converting the rotational motion into linear motion. This causes the slider 4 to drive one set of clamping components 5 to lift, facilitating tensile testing. When applying tensile force, the force will preferentially act on the connecting seat 50 and the connecting block 51, so that the tensile force detector between the connecting seat 50 and the connecting block 51 can sense the magnitude of the tensile force. Since the object to be tested is clamped by the clamping block 54 on the scissor-type connecting rod 52... The clamping mechanism ensures that when the tension on the connecting block 51 is transmitted to the scissor-type connecting rod 52 through the hinge rod 53, a closing force and a dragging force are simultaneously applied to the scissor-type connecting rod 52. As the dragging force increases, the closing force also increases synchronously to maintain a continuous clamping force during the testing process and ensure clamping stability. This avoids the problem that, during tensile testing, when clamping objects that are prone to deformation, the fixed clamping plate cannot change with the change in the object's volume, which could easily cause the clamped object to fall off and affect the tensile test.

[0027] like Figure 4 As shown, preferably, the inner wall of the clamping block 54 has a cavity 541, and the clamping surface of the clamping block 54 has a plurality of through holes 542 at the position corresponding to the cavity 541. The inner wall of each through hole 542 is slidably connected to a movable block 543. One end of the movable block 543 inside the cavity 541 is fixedly connected to a limit block 544, and the other end of the movable block 543 outside the cavity 541 is set with an arc surface.

[0028] In this embodiment, by setting a freely retractable movable block 543 on the clamping surface of the clamping block 54, the clamping block 54 can fit against the surface of the object when clamping, thus maintaining the stability of the clamping.

[0029] like Figure 2 As shown, preferably, a push block 55 is fixedly connected at the intersection of the scissor-type connecting rod 52, a positioning block 56 is fixedly connected to the outer wall of the connecting block 51 at the position corresponding to the push block 55, a slide rod 57 is slidably connected to the inner wall of the positioning block 56, and one end of the slide rod 57 is fixedly connected to the push block 55. A spring 58 is movably sleeved on the outer wall of the slide rod 57 at the position between the push block 55 and the positioning block 56.

[0030] In this embodiment, by setting a push block 55 at the intersection of the scissor-type connecting rod 52, when it is necessary to clamp an item, the scissor-type connecting rod 52 can be opened by pushing the push block 55 towards the positioning block 56 to facilitate the placement of the item. After placement, the push block 55 can be released, and the tension of the spring 58 will push the push block 55 to reset, so that the scissor-type connecting rod 52 closes and drives the clamping block 54 to clamp the item.

[0031] This utility model discloses a computer-controlled tensile testing machine that facilitates fixation. When it is necessary to fix the object to be tested, pushing the push block 55 towards the positioning block 56 opens the scissor-type connecting rod 52, making it easy to insert the object. After insertion, releasing the push block 55 causes the tension of the spring 58 to push the push block 55 back to its original position, closing the scissor-type connecting rod 52 and clamping the object with the clamping block 54. When the servo motor drives the lead screw 6 to rotate, the slider 4 slides on the inner wall of the groove 3, converting the rotational motion into linear motion. This causes the slider 4 to lift one set of clamping components 5, facilitating tensile testing. When applying tensile force... The pulling force will preferentially act on the connecting seat 50 and the connecting block 51, so that the pulling force detector between the connecting seat 50 and the connecting block 51 can sense the magnitude of the pulling force. Since the object to be tested is clamped by the clamping block 54 on the scissor-type connecting rod 52, when the pulling force on the connecting block 51 is transmitted to the scissor-type connecting rod 52 through the hinge rod 53, since the scissor-type connecting rod 52 is in a cross-open state, when the hinge rod 53 pulls, it will simultaneously apply a closing force and a dragging force to the scissor-type connecting rod 52. When the dragging force increases, the closing force will also increase synchronously to maintain the continuous application of clamping force during the detection process and ensure the stability of clamping.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A computerized tensile testing machine with easy fixation, comprising a base (1), characterized in that: The base (1) top fixedly connected with a column (2), the front of the column (2) is provided with a sliding slot (3), the sliding slot (3) inner wall is slidably connected with a sliding block (4), the bottom of the sliding block (4) and the top of the base (1) are respectively provided with a clamping assembly (5); The clamping assembly (5) includes a connecting seat (50), a connecting block (51), a scissor type connecting rod (52), a hinged rod (53), a clamping block (54), the connecting block (51) is slidably connected in the inner wall of the connecting seat (50), a tension detector is arranged between the connecting block (51) and the connecting seat (50), two hinged rods (53) are respectively hinged on both sides of the connecting block (51) at one end outside the connecting seat (50), two connecting rods of the scissor type connecting rod (52) are respectively hinged with the corresponding hinged rods (53), and two clamping blocks (54) are respectively hinged on the scissor type connecting rod (52) at a position away from the hinged rod (53) end.

2. The computerized tensile testing machine of claim 1, wherein: The inner wall of the sliding slot (3) is rotatably connected with a lead screw (6), and the lead screw (6) is threadedly connected with the sliding block (4), and the inside of the base (1) is provided with a servo motor for driving the lead screw (6) to rotate.

3. The computerized tensile testing machine of claim 1, wherein: The end of the scissor type connecting rod (52) close to the clamping block (54) is shorter than the end away from the clamping block (54), and is arranged in an arc shape.

4. The computerized tensile testing machine of claim 1, wherein: The inner wall of the clamping block (54) is provided with a cavity (541), and a plurality of through holes (542) are formed in the clamping surface of the clamping block (54) corresponding to the position of the cavity (541), and the inner wall of the through hole (542) is slidably connected with a movable block (543).

5. The computerized tensile testing machine of claim 4, wherein: The end of the movable block (543) inside the cavity (541) is fixedly connected with a limiting block (544), and the end of the movable block (543) outside the cavity (541) is arranged in an arc surface.

6. The computerized tensile testing machine of claim 1, wherein: The intersection of the scissor type connecting rod (52) is fixedly connected with a push block (55).

7. The computerized tensile testing machine of claim 6, wherein: The outer wall of the connecting block (51) is fixedly connected with a positioning block (56) corresponding to the position of the push block (55), the inner wall of the positioning block (56) is slidably connected with a sliding rod (57), and one end of the sliding rod (57) is fixedly connected with the push block (55), and the outer wall of the sliding rod (57) is movably sleeved with a spring (58) between the push block (55) and the positioning block (56).

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