Elongation detection device for metal snapping

Abstract

The utility model relates to the technical field of metal laboratory detection matched auxiliary devices, in particular to a metal tensile failure elongation detection device which comprises a mounting plate, a connecting block, a placement strip, an end block A, an end block B, a lead screw, a pressing rod, a servo motor, a guide frame and a workpiece body. The connecting block is fixedly connected to the upper surface of the middle position of the left end of the mounting plate, the placing strip is fixedly connected to the upper surface of the middle position of the mounting plate, the left end of the placing strip is in contact with the right side surface of the connecting block, and a downward concave groove is formed in the upper surface of the placing strip; the end block A is fixedly connected to the upper surface, close to the left end, of the rear side of the mounting plate, and the end block B is fixedly connected to the upper surface, close to the right end, of the rear side of the mounting plate.

Description

Technical Field

[0001] The present application relates to the technical field of auxiliary devices for metal laboratory testing, and in particular to a device for detecting the elongation of metal when breaking. Background Art

[0002] Metal breaking is a common performance testing method in the field of metal mining and metal smelting. By stretching a metal rod or a metal plate, the tensile force is collected to obtain the tensile limit of the metal, which is convenient for obtaining the performance data of the metal smelted by the manufacturer, and convenient for the manufacturer to adjust and sell according to the data. In the existing testing process, the metal breaking force value is mainly measured, while the elongation of the metal after breaking is not paid enough attention. The detailed record and analysis of the elongation can obtain the deformation information of the metal after the force is applied, which is convenient for other planning auxiliary functions of the subsequent product manufacturing. In the existing metal elongation test process, points are made on the metal surface, and then the distance between the two points is measured by breaking. This operation method requires manual alignment of the broken metal, and measurement is performed through traditional measuring structures such as steel rulers and tape measures. Since the broken metal has circular, rectangular, polygonal and other forms, errors are prone to occur in the measurement process, the accuracy is poor, and manual support and stability are required, and the measurement efficiency is low. Therefore, a metal breaking elongation detection device is proposed to solve these problems. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of this application is to provide a metal breaking elongation detection device which is easy to operate, has a small measurement error, is highly flexible, can quickly obtain the change value after breaking, and effectively improves work efficiency.

[0004] The above application objectives of this application are achieved through the following technical solutions:

[0005] A device for detecting the elongation of metal breaking, comprising: a mounting plate, a connecting block, a placement bar, an end block A, an end block B, a lead screw, a pressure rod, a servo motor, a guide frame and a workpiece body, wherein the mounting plate is rectangular in appearance, the connecting block is fixedly connected to the upper surface of the middle position of the left end of the mounting plate, the placement bar is fixedly connected to the upper surface of the middle position of the mounting plate, the left end of the placement bar is in contact with the right side surface of the connecting block, the upper surface of the placement bar is provided with a downward concave groove, the end block A is fixedly connected to the upper surface of the rear side of the mounting plate near the left end, the end block B is fixedly connected to the upper surface of the rear right end of the mounting plate, and the two ends of the lead screw are fixedly connected to the upper surface of the rear right end of the mounting plate. The ends are rotatably connected with end blocks A and B respectively, the lead screw is parallel to the placement bar, one end of the pressure rod is threadedly connected to the lead screw, and the other end of the pressure rod extends to the upper surface of the placement bar, the servo motor is fixedly connected to the surface of the left end of the rear side of the mounting plate, the end of the servo motor output shaft is fixedly connected to the end of the lead screw, the workpiece body is placed on the surface of the placement bar corresponding to the pressure rod and the connecting block, the guide frame has an inverted U-shape in appearance, the two ends of the guide frame are fixedly connected to the two ends of the mounting plate corresponding to the placement bar and the lead screw, and the middle position of the pressure rod is slidably connected to the guide frame.

[0006] Optionally, it also includes a raised portion, which is arranged on the lower surface of the pressure rod extending toward one end of the placement bar, and the raised portion is slidably connected to the recessed groove on the placement bar.

[0007] Optionally, it also includes a coil spring and a pressing plate, one end of the coil spring is fixedly connected to the surface of the protrusion facing the connecting block, the pressing plate is fixedly connected to the other end of the coil spring, and the lower end of the pressing plate is slidably connected to the recessed groove of the placement strip.

[0008] Optionally, it also includes a threaded sleeve, which is fixedly connected to the rod body at the connection position between the pressure rod and the lead screw, and the lead screw passes through the middle part of the threaded sleeve.

[0009] Optionally, it also includes a sliding sleeve, which is fixedly connected to the rod body at the connection position between the pressure rod and the guide frame, and the guide frame passes through the middle part of the sliding sleeve.

[0010] Optionally, a limit block is also included, and the limit block is fixedly connected to the surface of the right end of the placement bar.

[0011] Optionally, it also includes mounting holes, which are equidistantly opened on the surface of the mounting plate near the edge.

[0012] Optionally, it also includes a control switch, which is fixedly connected to the surface of one side of the mounting plate, the input end of the control switch is electrically connected to the output end of an external power supply, and the output end of the control switch is electrically connected to the input end of a servo motor.

[0013] Optionally, it also includes scale lines, which are equidistantly arranged on the surface of the front side of the placement strip.

[0014] The metal breaking elongation detection device can place the broken metal through a combined structure, and then quickly read the result through the scale lines set on the front side of the placement bar by pressing the two ends of the metal. This greatly improves the convenience of measurement.

[0015] Compared with the traditional manual measurement, the metal breaking elongation detection device has better stability, guaranteed measurement accuracy, faster measurement speed, improved work efficiency in the detection process, and better practicality.

[0016] The metal breaking elongation detection device can be used for measuring the elongation of batch testing workpieces, has good flexibility, good adaptability, low manufacturing cost, reduces the labor of personnel, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure provided by the embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of the left end structure provided in an embodiment of the present application.

[0019] Figure numerals: 1. mounting plate; 2. connecting block; 3. placement bar; 4. end block A; 5. end block B; 6. lead screw; 7. pressure rod; 8. servo motor; 9. raised portion; 10. coil spring; 11. pressure sheet; 12. guide frame; 13. threaded sleeve; 14. sliding sleeve; 15. limit block; 16. mounting hole; 17. control switch; 18. workpiece body; 19. scale line. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with the accompanying drawings.

[0021] In order to more clearly understand the technical solutions presented in the embodiments of the present application, the working principle of the existing metal breaking elongation detection is first introduced.

[0022] The existing metal elongation detection is a value used to predict metal fatigue characteristics. In the existing metal breaking process, round rods and plates are mainly used. After they are broken, the change distance between the points on the metal surface is measured. However, in the actual metal breaking process, the metal outside the point position will also undergo a certain elongation, which leads to a one-sided measurement result and cannot accurately measure the overall tensile change degree of the metal strip. In addition, the existing measurement method is mostly manual measurement, which has poor accuracy, slow speed and large error. Therefore, it is necessary to improve the existing measurement method, and propose an elongation detection device for metal breaking to solve these problems.

[0023] See also Figure 2 , which is a metal breaking elongation detection device disclosed in an embodiment of the present application, includes: a mounting plate 1, a connecting block 2, a placement bar 3, an end block A4, an end block B5, a lead screw 6, a pressure rod 7, a servo motor 8, a guide frame 12 and a workpiece body 18. The mounting plate 1 has a rectangular appearance, the connecting block 2 is fixedly connected to the upper surface of the middle position of the left end of the mounting plate 1, the placement bar 3 is fixedly connected to the upper surface of the middle position of the mounting plate 1, the left end of the placement bar 3 is in contact with the right side surface of the connecting block 2, and a downward concave groove is provided on the upper surface of the placement bar 3. The end block A4 is fixedly connected to the upper surface of the rear side of the mounting plate 1 near the left end, and the end block B5 is fixedly connected to the upper surface of the rear right end of the mounting plate 1 The two ends of the lead screw 6 are rotatably connected to the end block A4 and the end block B5 respectively, the lead screw 6 is parallel to the placement bar 3, one end of the pressure rod 7 is threadedly connected to the lead screw 6, and the other end of the pressure rod 7 extends to the upper surface of the placement bar 3, the servo motor 8 is fixedly connected to the surface of the left end of the rear side of the mounting plate 1, the end of the output shaft of the servo motor 8 is fixedly connected to the end of the lead screw 6, the workpiece body 18 is placed on the surface of the placement bar 3 corresponding to the pressure rod 7 and the connecting block 2, the guide frame 12 has an inverted U-shape in appearance, the two ends of the guide frame 12 are fixedly connected to the two ends of the mounting plate 1 corresponding to the placement bar 3 and the lead screw 6 respectively, and the middle position of the pressure rod 7 is slidably connected to the guide frame 12.

[0024] Specifically, the set mounting plate 1 is used to provide an installation connection position, and the right side of the set connecting block 2 is a plane, which can limit the end of the placement bar 3. The right side surface is used as the starting position, and the installation of the placement bar 3 and the end after the workpiece body 18 is placed can be used as the starting point. The upper surface of the set placement bar 3 is provided with a downward arc groove, which can facilitate the placement of cylindrical metal parts or other stretching metal parts. The set end block A4 and the end block B5 can connect the lead screw 6, and then under the drive of the end servo motor 8, the set guide frame 12 can make the pressure rod 7 move on the lead screw 6, so that the end of the pressure rod 7 can press the end of the workpiece body 18 spliced ​​before and after breaking, so as to ensure a relatively tight meshing state, so that people can quickly obtain the elongation change, and the operation is relatively simple. Compared with the existing manual hand-held form, the detection efficiency is improved, and it has good practicality. It has a simple structure and low manufacturing cost, and has a good application prospect.

[0025] See also Figure 1 As another specific embodiment provided by the application, it also includes a protrusion 9, which is arranged on the lower surface of the pressure rod 7 extending to one end of the placement bar 3, and the protrusion 9 is slidably connected with the recessed groove on the placement bar 3.

[0026] Specifically, the arrangement of the raised portion 9 can fill the concave groove of the placement strip 3, so that the metal sample with a reduced diameter can still be used normally.

[0027] See also Figure 1 As another specific embodiment provided by the application, it also includes a coil spring 10 and a pressing plate 11, one end of the coil spring 10 is fixedly connected to the surface of the protrusion 9 facing the connecting block 2, the pressing plate 11 is fixedly connected to the other end of the coil spring 10, and the lower end of the pressing plate 11 is slidably connected to the recessed groove of the placement strip 3.

[0028] Specifically, the setting of the coil spring 10 can push the pressing plate 11, so that the raised portion 9 at the end of the pressure rod 7 can move toward the workpiece body 18 and contact the workpiece before the workpiece, and then compress the coil spring 10 during the movement, which helps to avoid the collapse caused by hard compression and makes the operation more stable. The lower end of the pressing plate 11 cooperates with the recessed groove to achieve the same effect as the raised portion 9.

[0029] See also Figure 1 As another specific embodiment provided by the application, it also includes a threaded sleeve 13, which is fixedly connected to the rod body at the connection position between the pressure rod 7 and the screw 6, and the screw 6 passes through the middle part of the threaded sleeve 13.

[0030] Specifically, the provision of the threaded sleeve 13 can strengthen the connection between the pressure rod 7 and the lead screw 6, reduce the wear on the pressure rod 7, improve its firmness, and help extend its service life.

[0031] See also Figure 2 As another specific embodiment provided in the application, it also includes a sliding sleeve 14, which is fixedly connected to the rod body at the connection position between the pressure rod 7 and the guide frame 12, and the guide frame 12 passes through the middle part of the sliding sleeve 14.

[0032] Specifically, the provision of the sliding sleeve 14 can protect the connection between the pressure rod 7 and the guide frame 12, improve the smoothness of the movement, and reduce wear.

[0033] See also Figure 1 As another specific implementation provided by the application, it also includes a limit block 15, which is fixedly connected to the surface of the right end of the placement strip 3.

[0034] Specifically, the setting of the limit block 15 can limit the farthest right position of the pressure rod 7, ensuring that the measurement is within a certain range and avoiding damage to the equipment.

[0035] See also Figure 2 As another specific embodiment provided by the application, it also includes mounting holes 16, which are equidistantly opened on the surface of the mounting plate 1 near the edge.

[0036] Specifically, the setting of the mounting hole 16 can connect the mounting plate 1, thereby ensuring that the stability during the measurement process is further improved, which meets the needs of actual scenarios.

[0037] See also Figure 1 As another specific embodiment provided by the application, it also includes a control switch 17, which is fixedly connected to the surface of one side of the mounting plate 1, the input end of the control switch 17 is electrically connected to the output end of the external power supply, and the output end of the control switch 17 is electrically connected to the input end of the servo motor 8.

[0038] Specifically, the control switch 17 can control the servo motor 8 to drive the lead screw 6 to rotate. The servo motor 8 uses a motor model that stops running after the resistance value is reached to achieve automatic stopping after the workpiece body 18 is pressed.

[0039] See also Figure 1 As another specific embodiment provided by the application, it also includes scale lines 19, which are equidistantly arranged on the surface of the front side of the placement strip 3.

[0040] Specifically, the setting of the scale lines 19 facilitates people to observe the length value of the workpiece body 18 more intuitively, thereby directly reducing the use of rulers.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A metal breaking elongation detection device, characterized in that: include: A mounting plate (1), a connecting block (2), a placement bar (3), an end block A (4), an end block B (5), a lead screw (6), a pressure rod (7), a servo motor (8), a guide frame (12) and a workpiece body (18), wherein the mounting plate (1) is rectangular in appearance, the connecting block (2) is fixedly connected to the upper surface of the middle position of the left end of the mounting plate (1), the placement bar (3) is fixedly connected to the upper surface of the middle position of the mounting plate (1), the left end of the placement bar (3) is in contact with the right side surface of the connecting block (2), the upper surface of the placement bar (3) is provided with a downwardly concave groove, the end block A (4) is fixedly connected to the upper surface of the rear side of the mounting plate (1) near the left end, the end block B (5) is fixedly connected to the upper surface of the rear right end of the mounting plate (1), and the two ends of the lead screw (6) are respectively connected to the end block A (4) The guide frame (12) is rotatably connected to the end block B (5), the lead screw (6) is parallel to the placement bar (3), one end of the pressure rod (7) is threadedly connected to the lead screw (6), and the other end of the pressure rod (7) extends to the upper surface of the placement bar (3), the servo motor (8) is fixedly connected to the surface of the left end of the rear side of the mounting plate (1), the end of the output shaft of the servo motor (8) is fixedly connected to the end of the lead screw (6), the workpiece body (18) is placed on the surface of the placement bar (3) corresponding to the pressure rod (7) and the connecting block (2), the guide frame (12) has an inverted U-shape in appearance, the two ends of the guide frame (12) are respectively fixedly connected to the two ends of the mounting plate (1) corresponding to the placement bar (3) and the lead screw (6), and the middle position of the pressure rod (7) is slidably connected to the guide frame (12).

2. The metal breaking elongation detection device according to claim 1, characterized in that: It also comprises a raised portion (9), the raised portion (9) being arranged on the lower surface of the end of the pressure rod (7) extending toward the placement bar (3), the raised portion (9) being slidably connected to the recessed groove on the placement bar (3).

3. The metal breaking elongation detection device according to claim 2, characterized in that: It also comprises a coil spring (10) and a pressing sheet (11), one end of the coil spring (10) being fixedly connected to the surface of the protruding portion (9) facing the connecting block (2), the pressing sheet (11) being fixedly connected to the other end of the coil spring (10), and the lower end of the pressing sheet (11) being slidably connected to the recessed groove of the placement strip (3).

4. The metal breaking elongation detection device according to claim 1, characterized in that: It also comprises a threaded sleeve (13), wherein the threaded sleeve (13) is fixedly connected to the rod body at the connection position between the pressure rod (7) and the lead screw (6), and the lead screw (6) passes through the middle part of the threaded sleeve (13).

5. The metal breaking elongation detection device according to claim 1, characterized in that: It also comprises a sliding sleeve (14), wherein the sliding sleeve (14) is fixedly connected to the rod body at a connection position between the pressure rod (7) and the guide frame (12), and the guide frame (12) passes through the middle part of the sliding sleeve (14).

6. The metal breaking elongation detection device according to claim 1, characterized in that: It also comprises a limit block (15), wherein the limit block (15) is fixedly connected to the surface of the right end of the placement bar (3).

7. The metal breaking elongation detection device according to claim 1, characterized in that: It also comprises mounting holes (16), wherein the mounting holes (16) are equidistantly arranged through the surface of the mounting plate (1) near the edge.

8. The metal breaking elongation detection device according to claim 1, characterized in that: It also includes a control switch (17), the control switch (17) being fixedly connected to a surface on one side of the mounting plate (1), the input end of the control switch (17) being electrically connected to the output end of an external power supply, and the output end of the control switch (17) being electrically connected to the input end of a servo motor (8).

9. The metal breaking elongation detection device according to claim 1, characterized in that: It also includes scale lines (19), which are equidistantly arranged on the surface of the front side of the placement strip (3).

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