Tensile machine for metal material production

Abstract

The invention provides a tensile machine for metal material production, and belongs to the technical field of metal material detection.The tensile machine comprises a bottom plate, a first driving assembly, a movable seat, a fixed seat, a first clamping assembly, a second driving assembly, a third driving assembly and a second clamping assembly; the movable seat is movably arranged on one side of the fixed seat, first through holes allowing metal bars to penetrate through are formed in the fixed seat and the movable seat, and the first driving assembly is installed on the upper portion of the bottom plate and used for driving the movable seat to be close to or away from the fixed seat. The first clamping assembly and the second driving assembly are arranged on the upper portion of the fixing base. Compared with the prior art, the embodiment of the invention has the advantages that the automatic continuous section-by-section tension test of the longer metal bar can be realized, so that the test efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of metal material testing technology, specifically a tensile testing machine for metal material production. Background Technology

[0002] Currently, in the production process of metal materials, a series of tests are an essential step to ensure that the metal materials meet the strength requirements, and tensile strength testing is one of the many testing procedures.

[0003] Because the length of the metal bars to be tested is sometimes quite long, exceeding the testing range of existing tensile testing machines, the tensile strength test of long metal bars needs to be performed in segments. This involves using two sets of clamping mechanisms on the tensile testing machine to clamp a specific segment of the long metal bar, applying tensile force to that segment, and then releasing the clamping mechanisms after testing that segment. The bar is then adjusted so that the clamping mechanisms can clamp the next segment, and this process is repeated until the tensile strength test of the entire metal bar is completed. Therefore, the existing technology for testing the tensile strength of long metal bars is cumbersome and not conducive to efficient testing. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a tensile testing machine for metal material production.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A tensile testing machine for producing metal materials includes a base plate, a first drive assembly, a movable base, a fixed base, a first clamping assembly, a second drive assembly, a third drive assembly, and a second clamping assembly.

[0007] The fixed base is fixedly installed on the upper part of the base plate, and the movable base is movably disposed on one side of the fixed base. Both the fixed base and the movable base are provided with a first through hole for the metal bar to pass through.

[0008] The first drive assembly is mounted on the upper part of the base plate and is used to move the movable seat closer to and away from the fixed seat.

[0009] The first clamping assembly and the second driving assembly are disposed on the upper part of the fixed base, and the second clamping assembly and the third driving assembly are disposed on the upper part of the movable base.

[0010] When the movable seat moves away from the fixed seat, the second drive assembly drives the second clamping assembly to rotate, thereby clamping the metal bar to the movable seat as a single unit. When the movable seat moves away from the fixed seat to a predetermined position, the third drive assembly drives the first clamping assembly to rotate, thereby clamping the metal bar to the fixed seat as a single unit.

[0011] When the movable seat approaches the fixed seat, the second driving component drives the second clamping component to rotate in the opposite direction to release the metal bar from the movable seat. When the movable seat approaches the fixed seat to a predetermined position, the third driving component drives the first clamping component to rotate in the opposite direction to release the metal bar from the fixed seat.

[0012] As a further improvement of the present invention: a first slider and a second slider are fixedly disposed on the side wall of the movable seat, and a light rod is fixedly disposed on the upper part of the base plate, the light rod passing through the second slider and movably cooperating with the second slider.

[0013] The first drive assembly includes a motor and a lead screw. The motor is fixedly mounted on the upper part of the base plate. One end of the lead screw is connected to the output end of the motor, and the other end passes through the first slider and is threadedly engaged with the first slider.

[0014] As a further improvement of the present invention: the first clamping assembly includes a first gear, a first threaded sleeve, and a first screw.

[0015] The upper end of the first screw extends into the interior of the first threaded sleeve and is threaded into the first threaded sleeve. The lower end extends from the top of the fixed base into the interior of the corresponding first through hole. The first gear is fixedly mounted on the upper end of the first threaded sleeve. A first positioning ring is rotatably mounted on the outside of the first threaded sleeve. The sidewall of the first positioning ring is fixedly connected to the top of the fixed base through several first support rods. Several first guide rods are fixedly mounted on the sidewall of the first screw. Several first guide holes are opened on the upper part of the fixed base for the first guide rods to extend into.

[0016] The third drive assembly includes a second support rod, a third helical gear, and a fourth helical gear.

[0017] One end of the second support rod is fixedly connected to the movable seat, and the other end extends to one side of the first gear. The third helical gear and the fourth helical gear are provided with several sets. Several sets of the third helical gear and the fourth helical gear are hinged to the side wall of the second support rod. One side of each set of the third helical gear and each set of the fourth helical gear is connected to the second support rod through a set of second elastic elements.

[0018] As a further improvement of the present invention: the second clamping assembly includes a second gear, a second threaded sleeve, and a second screw.

[0019] The upper end of the second screw extends into the interior of the second threaded sleeve and is threaded into it. The lower end extends from the top of the movable seat into the corresponding first through hole. The second gear is fixedly mounted on the upper end of the second threaded sleeve. A second positioning ring is rotatably mounted on the outside of the second threaded sleeve. The sidewall of the second positioning ring is fixedly connected to the top of the fixed seat through several second support rods. Several second guide rods are fixedly mounted on the sidewall of the second screw. Several second guide holes are provided on the upper part of the movable seat for the second guide rods to extend into.

[0020] The second drive assembly includes a first support rod, a first helical gear, and a second helical gear.

[0021] One end of the first support rod is fixedly connected to the fixed base, and the other end extends to one side of the second gear. The first helical gear and the second helical gear are provided with several groups. Several groups of the first helical gear and the second helical gear are hinged to the side wall of the first support rod. One side of each group of the first helical gear and each group of the second helical gear is connected to the first support rod through a group of first elastic elements.

[0022] As a further improvement of the present invention: the first elastic element and the second elastic element are springs or metal sheets.

[0023] As a further improvement of the present invention: a detection component is also provided on the upper part of the base plate, the detection component being used to detect the metal bar after the tensile test is completed.

[0024] As a further improvement to the present invention: the detection component includes a support and a camera.

[0025] The support is fixedly installed on the upper part of the base plate. The support has a second through hole through which the metal bar can pass. Several sets of cameras are provided, and several cameras are fixedly installed on the inner wall of the second through hole.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] In this embodiment of the invention, initially, the movable seat is located on one side of the fixed seat and close to it. When a tensile test is required on the metal bar, one end of the metal bar can pass through the first through hole on both the fixed seat and the movable seat. Subsequently, the first driving component drives the movable seat away from the fixed seat. At this time, the second driving component drives the second clamping component to rotate, clamping the metal bar and the movable seat together. This allows the movable seat to move relative to the fixed seat as it moves away from it. When the movable seat moves away from the fixed seat to a predetermined position, the third driving component drives the first clamping component to rotate, clamping the metal bar and the fixed seat together. At this time, the portion of the metal bar located between the movable seat and the fixed seat is under tension, thereby achieving the tensile test of the current portion of the metal bar. Subsequently, the first driving component drives the movable seat closer to the fixed seat. At this time, the second driving component drives the second clamping component to rotate in the opposite direction, releasing the metal bar. The clamping state between the material and the moving seat allows the moving seat to move relative to the metal bar. When the moving seat approaches the fixed seat to a predetermined position, the third drive component drives the first clamping component to rotate in the opposite direction, thereby releasing the clamping state between the metal bar and the fixed seat. Subsequently, the first drive component drives the moving seat away from the fixed seat again, and the second drive component drives the second clamping component to rotate again, so as to clamp the metal bar and the moving seat together again. The moving seat then drives the metal bar to move relative to the fixed seat again. When the moving seat moves away from the fixed seat to a predetermined position again, the third drive component drives the first clamping component to rotate again, so as to clamp the metal bar and the fixed seat together again, so that the metal bar located between the moving seat and the fixed seat is subjected to tension again. This cycle repeats, which can realize continuous segmented tensile testing of long metal bars. Compared with the existing technology, it can realize automatic continuous segmented tensile testing of long metal bars, thereby improving testing efficiency. Attached Figure Description

[0028] Figure 1 A front structural diagram of a tensile testing machine used in the production of metal materials;

[0029] Figure 2 A schematic diagram of the back structure of a tensile testing machine used in the production of metal materials;

[0030] Figure 3 for Figure 1 Enlarged view of region A in the middle;

[0031] Figure 4 for Figure 1 Enlarged view of region B in the middle;

[0032] Figure 5 for Figure 1 Enlarged diagram of region C in the middle;

[0033] Figure 6 for Figure 2Enlarged schematic diagram of region D in the middle;

[0034] In the diagram: 10-Base plate, 101-Shine rod, 20-First drive assembly, 201-Motor, 202-Lead screw, 30-Moving seat, 301-First slider, 302-Second slider, 40-Fixed seat, 50-First clamping assembly, 501-First gear, 502-First positioning ring, 503-First support rod, 504-First threaded sleeve, 505-First screw, 506-First guide rod, 60-Second drive assembly, 601-First support rod, 602-The first... 603-Second helical gear, 604-First elastic element, 70-Third drive assembly, 701-Second support rod, 702-Third helical gear, 703-Fourth helical gear, 704-Second elastic element, 80-Second clamping assembly, 801-Second gear, 802-Second positioning ring, 803-Second support rod, 804-Second threaded sleeve, 805-Second screw, 806-Second guide rod, 90-Detection assembly, 901-Support, 902-Camera. Detailed Implementation

[0035] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] Please see Figure 1 as well as Figure 2This embodiment provides a tensile testing machine for metal material production, including a base plate 10, a first drive assembly 20, a movable seat 30, a fixed seat 40, a first clamping assembly 50, a second drive assembly 60, a third drive assembly 70, and a second clamping assembly 80. The fixed seat 40 is fixedly installed on the upper part of the base plate 10, and the movable seat 30 is movably disposed on one side of the fixed seat 40. Both the fixed seat 40 and the movable seat 30 have a first through hole for metal bars to pass through. The first drive assembly 20 is installed on the upper part of the base plate 10 and is used to drive the movable seat 30 to move closer to and away from the fixed seat 40. The first clamping assembly 50 and the second drive assembly 60 are disposed on the upper part of the fixed seat 40, and the second clamping assembly 80 and the third drive assembly 70 are disposed on the upper part of the movable seat 30. When the movable seat 30 moves away from the fixed seat 40, the second driving component 60 drives the second clamping component 80 to rotate, so as to clamp the metal bar with the movable seat 30 as a whole. When the movable seat 30 moves away from the fixed seat 40 to a predetermined position, the third driving component 70 drives the first clamping component 50 to rotate, so as to clamp the metal bar with the fixed seat 40 as a whole. When the movable seat 30 moves closer to the fixed seat 40, the second driving component 60 drives the second clamping component 80 to rotate in the opposite direction, so as to release the clamping state between the metal bar and the movable seat 30. When the movable seat 30 moves closer to the fixed seat 40 to a predetermined position, the third driving component 70 drives the first clamping component 50 to rotate in the opposite direction, so as to release the clamping state between the metal bar and the fixed seat 40.

[0038] Initially, the movable seat 30 is located on one side of the fixed seat 40 and close to it. When a tensile test is required on the metal bar, one end of the metal bar can be inserted through the first through hole on both the fixed seat 40 and the movable seat 30. Then, the first drive assembly 20 moves the movable seat 30 away from the fixed seat 40. At this time, the second drive assembly 60 drives the second clamping assembly 80 to rotate, clamping the metal bar and the movable seat 30 together. This allows the movable seat 30 to move relative to the fixed seat 40 as it moves away from the fixed seat 40. When the movable seat 30 moves away from the fixed seat 40 to a predetermined position, the third drive assembly 70 drives the first clamping assembly 50 to rotate, clamping the metal bar and the fixed seat 40 together. At this time, the portion of the metal bar between the movable seat 30 and the fixed seat 40 is under tension, thus achieving the tensile test of the current portion of the metal bar. Subsequently, the first drive assembly 20 moves the movable seat 30 closer to the fixed seat 40, and the second drive assembly 60 rotates the second clamping assembly 80. The first drive assembly 70 drives the second clamping component 80 to rotate in the opposite direction to release the clamping state between the metal bar and the movable seat 30, allowing the movable seat 30 to move relative to the metal bar. When the movable seat 30 approaches the fixed seat 40 to a predetermined position, the third drive assembly 70 drives the first clamping component 50 to rotate in the opposite direction, thereby releasing the clamping state between the metal bar and the fixed seat 40. Subsequently, the first drive assembly 20 drives the movable seat 30 away from the fixed seat 40 again, and the second drive assembly 60 drives the second clamping component 80 to rotate again, clamping the metal bar and the movable seat 30 together again. The movable seat 30 then drives the metal bar to move relative to the fixed seat 40 again. When the movable seat 30 moves away from the fixed seat 40 to a predetermined position again, the third drive assembly 70 drives the first clamping component 50 to rotate again, clamping the metal bar and the fixed seat 40 together again, causing the metal bar located between the movable seat 30 and the fixed seat 40 to be stretched again. This cycle repeats, enabling continuous segmented tensile testing of a long metal bar.

[0039] Please see Figure 1 as well as Figure 2 In one embodiment, a first slider 301 and a second slider 302 are fixedly disposed on the side wall of the movable seat 30, and a light rod 101 is fixedly disposed on the upper part of the base plate 10. The light rod 101 passes through the second slider 302 and is movably engaged with the second slider 302. The first drive assembly 20 includes a motor 201 and a lead screw 202. The motor 201 is fixedly installed on the upper part of the base plate 10. One end of the lead screw 202 is connected to the output end of the motor 201, and the other end passes through the first slider 301 and is threadedly engaged with the first slider 301.

[0040] After the metal bar to be tested is inserted through the first through hole in the fixed seat 40 and the movable seat 30, the motor 201 is started. The motor 201 drives the lead screw 202 to rotate in the forward direction. When the lead screw 202 rotates in the forward direction, it drives the movable seat 30 away from the fixed seat 40 through the threaded engagement with the first slider 301 and the sliding engagement with the second slider 302 and the polished rod 101. When the movable seat 30 moves away from the fixed seat 40 to a predetermined position, the motor 201 drives the lead screw 202 to rotate in the reverse direction. Then, through the reverse threaded engagement with the first slider 301 and the reverse sliding engagement with the second slider 302 and the polished rod 101, the movable seat 30 moves closer to the fixed seat 40.

[0041] Please see Figure 2 , Figure 4 as well as Figure 6 In one embodiment, the first clamping assembly 50 includes a first gear 501, a first threaded sleeve 504, and a first screw 505. The upper end of the first screw 505 extends into the interior of the first threaded sleeve 504 and is threadedly engaged with the first threaded sleeve 504. The lower end extends from the top of the fixing base 40 into the interior of the corresponding first through hole. The first gear 501 is fixedly disposed on the upper end of the first threaded sleeve 504. A first positioning ring 502 is rotatably disposed on the outside of the first threaded sleeve 504. The sidewall of the first positioning ring 502 is fixedly connected to the top of the fixing base 40 through a plurality of first support rods 503. A plurality of first guide rods 506 are fixedly disposed on the sidewall of the first screw 505. The upper part of the fixed seat 40 is provided with several first guide holes into which the first guide rod 506 can extend. The third drive assembly 70 includes a second support rod 701, a third helical gear 702 and a fourth helical gear 703. One end of the second support rod 701 is fixedly connected to the movable seat 30, and the other end extends to one side of the first gear 501. Several sets of the third helical gear 702 and the fourth helical gear 703 are provided. Several sets of the third helical gear 702 and the fourth helical gear 703 are hinged to the side wall of the second support rod 701. One side of each set of the third helical gear 702 and each set of the fourth helical gear 703 is connected to the second support rod 701 through a set of second elastic members 704.

[0042] When the motor 201 drives the lead screw 202 to rotate in the forward direction, thereby moving the movable seat 30 away from the fixed seat 40, the movable seat 30 drives the second support rod 701 to move synchronously. When the movable seat 30 moves away from the fixed seat 40 to a predetermined position, several fourth helical gears 703 act on and mesh with the first gear 501, thereby driving the first gear 501 to rotate. When the first gear 501 rotates, it drives the first threaded sleeve 504 to rotate. When the first threaded sleeve 504 rotates, it drives the first screw 505 towards the fixed seat 40 through the threaded engagement with the first screw 505. The moving seat 30 moves inside the first through hole, pushing the metal bar against the inner wall of the first through hole to clamp the metal bar and the fixed seat 40 together. At this time, the metal bar portion located between the moving seat 30 and the fixed seat 40 is stably stretched, thus completing the tensile test. After the current portion of the metal bar completes the tensile test, the motor 201 drives the lead screw 202 to rotate in the opposite direction, thereby driving the moving seat 30 closer to the fixed seat 40. At this time, several fourth helical gears 703 act in the opposite direction on the first gear 501 and are pushed by the first gear 501 to deflect sequentially towards the second support rod 701. The fourth helical gear 703 cannot mesh with the first gear 501, and the first screw 505 maintains its clamping state on the metal bar. When the moving seat 30 approaches the fixed seat 40 to a predetermined position, several third helical gears 702 on the side wall of the second support rod 701 act on and mesh with the first gear 501, thereby driving the first gear 501 to rotate in the opposite direction. The first gear 501 drives the first threaded sleeve 504 to rotate in the opposite direction. Through the reverse thread engagement between the first threaded sleeve 504 and the first screw 505, the first screw 505 is driven to rotate in the opposite direction. The through hole moves outward to release the support of the metal bar. Then, the motor 201 drives the lead screw 202 to rotate in the forward direction again, thereby moving the moving seat 30 away from the fixed seat 40. At this time, several third helical teeth 702 act in the opposite direction to the first gear 501 and are pushed by the first gear 501 to deflect in sequence towards the second support rod 701. Several third helical teeth 702 cannot mesh with the first gear 501. The first screw 505 maintains a relaxed state on the metal bar, so that when the moving seat 30 moves away from the fixed seat 40, it can smoothly drive the metal bar to move relative to the fixed seat 40.

[0043] Please see Figure 1 , Figure 3 as well as Figure 5In one embodiment, the second clamping assembly 80 includes a second gear 801, a second threaded sleeve 804, and a second screw 805. The upper end of the second screw 805 extends into the interior of the second threaded sleeve 804 and is threadedly engaged with the second threaded sleeve 804. The lower end extends from the top of the movable seat 30 into the interior of the corresponding first through hole. The second gear 801 is fixedly disposed on the upper end of the second threaded sleeve 804. A second positioning ring 802 is rotatably disposed on the outside of the second threaded sleeve 804. The sidewall of the second positioning ring 802 is fixedly connected to the top of the fixed seat 40 through a plurality of second support rods 803. A plurality of second guide rods 806 are fixedly disposed on the sidewall of the second screw 805. The upper part of the moving base 30 is provided with several second guide holes into which the second guide rod 806 can extend. The second drive assembly 60 includes a first support rod 601, a first helical gear 602, and a second helical gear 603. One end of the first support rod 601 is fixedly connected to the fixed base 40, and the other end extends to one side of the second gear 801. Several sets of the first helical gear 602 and the second helical gear 603 are provided. Several sets of the first helical gear 602 and the second helical gear 603 are hinged to the side wall of the first support rod 601. One side of each set of the first helical gear 602 and each set of the second helical gear 603 is connected to the first support rod 601 through a set of first elastic members 604.

[0044] When the motor 201 drives the lead screw 202 to rotate in the forward direction, thereby moving the movable seat 30 away from the fixed seat 40, the movable seat 30 drives the second gear 801, the second threaded sleeve 804, and the second screw 805 to move synchronously. At this time, several first helical gears 602 act on and mesh with the second gear 801, thereby driving the second threaded sleeve 804 to rotate. When the second threaded sleeve 804 rotates, it drives the second screw 805 to move into the first through hole on the movable seat 30 through the threaded engagement with the second screw 805, thereby pushing the metal bar against the inner wall of the first through hole to clamp the metal bar and the movable seat 30 together. At this time, the movable seat 30 drives the metal bar to move synchronously. When the movable seat 30 moves away from the fixed seat 40 to a predetermined position, several fourth helical gears 703 act on and mesh with the first gear 501, and then... The first screw 505 is driven to move into the first through hole on the fixed seat 40, thereby pushing the metal bar against the inner wall of the first through hole to clamp the metal bar and the fixed seat 40 together. At this time, the metal bar part located between the moving seat 30 and the fixed seat 40 is stably stretched, thus completing the tensile test. After the first part of the metal bar has completed the tensile test, the motor 201 drives the lead screw 202 to rotate in the opposite direction, thereby driving the moving seat 30 to move closer to the fixed seat 40. At this time, several second helical teeth 603 act on the second gear 801 and mesh with the second gear 801, thereby driving the second gear 801 to rotate in the opposite direction. The second gear 801 drives the second threaded sleeve 804 to rotate in the opposite direction, thereby driving the second screw 805 to move to the outside of the corresponding first through hole to release the clamping state between the metal bar and the moving seat 30, thereby ensuring that the moving seat 30 can smoothly move closer to the fixed seat 40.

[0045] In one embodiment, the first elastic element 604 and the second elastic element 704 may be springs or metal sheets, and there is no limitation on this.

[0046] Please see Figure 1 In one embodiment, a detection component 90 is also provided on the upper part of the base plate 10. The detection component 90 is used to detect the metal bar after the tensile test is completed.

[0047] Please continue reading. Figure 1 In one embodiment, the detection component 90 includes a support 901 and a camera 902. The support 901 is fixedly installed on the upper part of the base plate 10. The support 901 has a second through hole through which a metal bar can pass. The camera 902 is provided in several groups, and several cameras 902 are fixedly installed on the inner wall of the second through hole.

[0048] When the movable seat 30 moves away from the fixed seat 40 and thus moves the metal bar, the metal bar passes through the second through hole and moves relative to the support 901. At this time, several cameras 902 take pictures of the surface of the metal bar and transmit the captured image information to the controller. The controller analyzes the image and determines whether there are cracks on the surface of the metal bar, and then concludes whether the tensile strength of the metal bar is qualified.

[0049] In this embodiment of the invention, initially, the movable seat 30 is located on one side of the fixed seat 40 and close to the fixed seat 40. When a tensile test is required on the metal bar, one end of the metal bar can pass through the first through hole on both the fixed seat 40 and the movable seat 30. Subsequently, the first driving component 20 drives the movable seat 30 away from the fixed seat 40. At this time, the second driving component 60 drives the second clamping component 80 to rotate, thereby clamping the metal bar and the movable seat 30 together, so that the movable seat 30 moves away from the fixed seat 40. When the movable seat 30 moves away from the fixed seat 40 to a predetermined position, the third drive assembly 70 drives the first clamping assembly 50 to rotate, clamping the metal bar and the fixed seat 40 together. At this time, the portion of the metal bar located between the movable seat 30 and the fixed seat 40 is under tension, thereby realizing the tensile test of the current portion of the metal bar. Subsequently, the first drive assembly 20 drives the movable seat 30 closer to the fixed seat 40, at which time the second drive assembly 60 drives the second clamping assembly 80 to rotate in the opposite direction. To release the metal bar from the clamping state between it and the movable seat 30, the movable seat 30 moves relative to the metal bar. When the movable seat 30 approaches the fixed seat 40 to a predetermined position, the third drive assembly 70 drives the first clamping assembly 50 to rotate in the opposite direction, thereby releasing the clamping state between the metal bar and the fixed seat 40. Subsequently, the first drive assembly 20 again drives the movable seat 30 away from the fixed seat 40, and the second drive assembly 60 again drives the second clamping assembly 80 to rotate, so as to clamp the metal bar and the movable seat 30 together again. The moving seat 30 moves the metal bar relative to the fixed seat 40 again. When the moving seat 30 moves away from the fixed seat 40 to the predetermined position, the third drive component 70 drives the first clamping component 50 to rotate again, so as to clamp the metal bar with the fixed seat 40 again, so that the metal bar located between the moving seat 30 and the fixed seat 40 is stretched again. This cycle repeats, which can realize continuous segmented tensile testing of long metal bars. Compared with the existing technology, it can realize automatic continuous segmented tensile testing of long metal bars, thereby improving testing efficiency.

[0050] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A tensile testing machine for producing metal materials, characterized in that, It includes a base plate, a first drive assembly, a movable base, a fixed base, a first clamping assembly, a second drive assembly, a third drive assembly, and a second clamping assembly. The fixed base is fixedly installed on the upper part of the base plate, and the movable base is movably disposed on one side of the fixed base. Both the fixed base and the movable base are provided with a first through hole for the metal bar to pass through. The first drive assembly is mounted on the upper part of the base plate and is used to move the movable seat closer to and away from the fixed seat. The first clamping assembly and the second driving assembly are disposed on the upper part of the fixed base, and the second clamping assembly and the third driving assembly are disposed on the upper part of the movable base. When the movable seat moves away from the fixed seat, the second drive assembly drives the second clamping assembly to rotate, thereby clamping the metal bar to the movable seat as a single unit. When the movable seat moves away from the fixed seat to a predetermined position, the third drive assembly drives the first clamping assembly to rotate, thereby clamping the metal bar to the fixed seat as a single unit. When the movable seat approaches the fixed seat, the second driving component drives the second clamping component to rotate in the opposite direction to release the metal bar from the movable seat. When the movable seat approaches the fixed seat to a predetermined position, the third driving component drives the first clamping component to rotate in the opposite direction to release the metal bar from the fixed seat.

2. The tensile testing machine for producing metal materials according to claim 1, characterized in that, A first slider and a second slider are fixedly mounted on the side wall of the movable seat, and a light rod is fixedly mounted on the upper part of the base plate. The light rod passes through the second slider and is movably engaged with the second slider. The first drive assembly includes a motor and a lead screw. The motor is fixedly mounted on the upper part of the base plate. One end of the lead screw is connected to the output end of the motor, and the other end passes through the first slider and is threadedly engaged with the first slider.

3. A tensile testing machine for producing metal materials according to claim 1, characterized in that, The first clamping assembly includes a first gear, a first threaded sleeve, and a first screw. The upper end of the first screw extends into the interior of the first threaded sleeve and is threaded into the first threaded sleeve. The lower end extends from the top of the fixed base into the interior of the corresponding first through hole. The first gear is fixedly mounted on the upper end of the first threaded sleeve. A first positioning ring is rotatably mounted on the outside of the first threaded sleeve. The sidewall of the first positioning ring is fixedly connected to the top of the fixed base through several first support rods. Several first guide rods are fixedly mounted on the sidewall of the first screw. Several first guide holes are opened on the upper part of the fixed base for the first guide rods to extend into. The third drive assembly includes a second support rod, a third helical gear, and a fourth helical gear. One end of the second support rod is fixedly connected to the movable seat, and the other end extends to one side of the first gear. The third helical gear and the fourth helical gear are provided with several sets. Several sets of the third helical gear and the fourth helical gear are hinged to the side wall of the second support rod. One side of each set of the third helical gear and each set of the fourth helical gear is connected to the second support rod through a set of second elastic elements.

4. A tensile testing machine for producing metal materials according to claim 3, characterized in that, The second clamping assembly includes a second gear, a second threaded sleeve, and a second screw. The upper end of the second screw extends into the interior of the second threaded sleeve and is threaded into it. The lower end extends from the top of the movable seat into the corresponding first through hole. The second gear is fixedly mounted on the upper end of the second threaded sleeve. A second positioning ring is rotatably mounted on the outside of the second threaded sleeve. The sidewall of the second positioning ring is fixedly connected to the top of the fixed seat through several second support rods. Several second guide rods are fixedly mounted on the sidewall of the second screw. Several second guide holes are provided on the upper part of the movable seat for the second guide rods to extend into. The second drive assembly includes a first support rod, a first helical gear, and a second helical gear. One end of the first support rod is fixedly connected to the fixed base, and the other end extends to one side of the second gear. The first helical gear and the second helical gear are provided with several groups. Several groups of the first helical gear and the second helical gear are hinged to the side wall of the first support rod. One side of each group of the first helical gear and each group of the second helical gear is connected to the first support rod through a group of first elastic elements.

5. A tensile testing machine for producing metal materials according to claim 4, characterized in that, The first elastic element and the second elastic element are springs or metal sheets.

6. A tensile testing machine for producing metal materials according to claim 1, characterized in that, The upper part of the base plate is also provided with a detection component, which is used to detect the metal bar after the tensile test is completed.

7. A tensile testing machine for producing metal materials according to claim 6, characterized in that, The detection component includes a support and a camera. The support is fixedly installed on the upper part of the base plate. The support has a second through hole through which the metal bar can pass. Several sets of cameras are provided, and several cameras are fixedly installed on the inner wall of the second through hole.

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