Metal workpiece low-temperature impact testing device

Abstract

The utility model relates to the field of metal workpiece testing, in particular to a metal workpiece low-temperature impact testing device which comprises a fixed cavity and a base, a fixed door is rotatably installed on the front side end face of the fixed cavity through a pin shaft, the base is installed at the bottom in the fixed cavity, a containing groove is formed in the upper end face of the base, and an adjusting air cylinder is installed at the bottom in the containing groove. A plurality of insertion rods are installed on the upper end face of the base in the circumferential direction of the base, the insertion rods are installed at the bottom of the bottom plate in a sliding fit mode, a first air cylinder is installed at the top in the fixing cavity, a pressing plate is installed at the output end of the first air cylinder, and an air cooler is installed on the end face of the rear side of the fixing cavity; according to the device disclosed by the utility model, an adjusting cylinder structure is adopted, so that the position of the bottom plate can be conveniently adjusted according to the height specification of a workpiece, and the use universality of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of metal workpiece testing, in particular to a low-temperature impact testing device for metal workpieces. Background Art

[0002] Hardness is one of the most commonly used indicators for evaluating the mechanical properties of metal materials. The essence of hardness is the ability of a material to resist the intrusion of another harder material. For the material being tested, hardness represents the comprehensive performance of multiple physical quantities such as elasticity, plasticity, strength, toughness and wear resistance under a certain indenter and test force. Since the hardness test can reflect the difference in the performance of metal materials under different chemical compositions, organizational structures and heat treatment process conditions, the hardness test is widely used in the inspection of metal properties, supervision of heat treatment process quality and the development of new materials.

[0003] A Chinese patent discloses a metal mechanical properties testing device (authorization announcement number CN 218995014U). This patented technology can solve the problem that the existing metal workpiece testing can only be performed under normal conditions and cannot simulate the testing of the mechanical properties of the metal under different environmental conditions.

[0004] The existing testing device can only test a single workpiece, and the workpiece needs to be replaced frequently, which has low work efficiency and cannot clearly compare the impact conditions of the workpiece, making the test prone to deviation. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a low-temperature impact testing device for metal workpieces, including a fixed cavity and a base, a fixed door is installed on the front end face of the fixed cavity through a pin shaft, a base is installed at the bottom of the fixed cavity, a placement groove is opened on the upper end face of the base, an adjusting cylinder is installed at the bottom of the placement groove, a bottom plate is installed on the output end of the adjusting cylinder, a suction cup is embedded on the upper end face of the bottom plate, a plurality of plug rods are installed on the upper end face of the base along its circumferential direction, the plug rods are installed on the bottom of the bottom plate by sliding cooperation, a first cylinder is installed on the top of the fixed cavity, a pressure plate is installed on the output end of the first cylinder, an air cooler is installed on the rear end face of the fixed cavity, the air cooler and the fixed cavity are connected by a cold air duct, and a temperature sensor is installed on the left end face of the fixed cavity.

[0006] Preferably: a driven gear is installed on the outer side wall of the base, a driving gear is installed on the right side of the driven gear for meshing and rotation, an adjustment motor is installed on the upper end surface of the driving gear, and a plurality of suction cups are embedded on the upper end surface of the bottom plate along its circumferential direction.

[0007] Preferably: the output end of the first cylinder is connected to the pressure plate via an adjusting bolt, and a limit pin is installed on the outer side wall of the adjusting bolt by plugging.

[0008] Preferably, a camera is installed on the left end face inside the fixed cavity, the camera is arranged obliquely, a control panel is installed on the left end face of the fixed cavity, and a lighting lamp is installed on the right end face inside the fixed cavity, and the lighting lamp is arranged obliquely.

[0009] The technical effects and advantages of the present utility model are as follows:

[0010] 1. In the present utility model, an adjusting air cylinder structure is adopted, which is convenient for adjusting the position of the bottom plate according to the height specification of the workpiece, and improves the universality of the device.

[0011] 2. In the present utility model, a driving gear and a driven gear structure are adopted, which is convenient for performing impact test on multiple metal workpieces, and at the same time, the detection effect can be further refined by comparing the impact conditions of multiple metal workpieces. Description of the Drawings

[0012] Figure 1 is the front view of the structure of a low-temperature impact test device for metal workpieces provided by an embodiment of the present application;

[0013] Figure 2 is the rear view of the structure of a low-temperature impact test device for metal workpieces provided by an embodiment of the present application;

[0014] Figure 3 is the first sectional front view of the structure of a low-temperature impact test device for metal workpieces provided by an embodiment of the present application;

[0015] Figure 4 is the second sectional front view of the structure of a low-temperature impact test device for metal workpieces provided by an embodiment of the present application;

[0016] Figure 5 is the partial sectional top view of the structure of a low-temperature impact test device for metal workpieces provided by an embodiment of the present application;

[0017] In the figure: 1, fixed cavity; 2, base; 11, adjusting air cylinder; 12, bottom plate; 13, suction cup; 14, first air cylinder; 15, pressing plate; 16, cold air blower; 17, temperature sensor; 18, driven gear; 19, driving gear; 21, adjusting motor; 22, inserting rod; 23, adjusting bolt; 24, camera; 25, control panel; 26, lighting lamp. Detailed Description of the Invention

[0018] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present utility model are given for the purpose of illustration and description, and are not exhaustive or limited to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model and design various embodiments with various modifications suitable for specific purposes.

[0019] Please refer to Figures 1 to 5 , in this embodiment, a low-temperature impact test device for metal workpieces is provided, which includes a fixed cavity 1 and a base 2. A fixed door is rotatably installed on the front end face of the fixed cavity 1 through a pin shaft. The base 2 is installed at the bottom inside the fixed cavity 1. A placement groove is provided on the upper end face of the base 2, and an adjusting cylinder 11 is installed at the bottom inside the placement groove. The output end of the adjusting cylinder 11 is installed with a bottom plate 12, and a suction cup 13 is embedded on the upper end face of the bottom plate 12. A plurality of insertion rods 22 are installed on the upper end face of the base 2 along its circumferential direction, and the insertion rods 22 are installed at the bottom of the bottom plate 12 in a sliding fit manner. A first cylinder 14 is installed at the top inside the fixed cavity 1, and the output end of the first cylinder 14 is installed with a pressing plate 15. A cold air blower 16 is installed on the rear end face of the fixed cavity 1, and the cold air blower 16 is connected to the fixed cavity 1 through a cold air pipe. A temperature sensor 17 is installed on the left end face inside the fixed cavity 1. During operation, the cold air blower 16 is started, and cold air is introduced into the fixed cavity 1 through the cold air pipe to keep the inside in a low-temperature state. The metal workpiece is placed on the bottom plate 12, and the suction cup 13 is started to suck and fix the bottom of the metal workpiece. The first cylinder 14 is started to drive the pressing plate 15 to move down and strike the workpiece, so as to perform an impact test on the metal workpiece. The adjusting cylinder 11 is started to drive the bottom plate 12 to move up and down, which is convenient for adjusting according to the height specification of the workpiece, improving the universality of the device.

[0020] A driven gear 18 is installed on the outer side wall of the base 2, and a driving gear 19 is rotatably installed meshing with the driven gear 18 on the right. The driving gear 19 is an incomplete gear structure, and an adjusting motor 21 is installed on the upper end face of the driving gear 19. A plurality of suction cups 13 are embedded on the upper end face of the bottom plate 12 along its circumferential direction. During operation, a plurality of metal workpieces are placed on the bottom plate 12. After the pressing plate 15 strikes, the adjusting motor 21 is started to drive the driving gear 19 to rotate. The driving gear 19 drives the driven gear 18 to rotate, causing the base 2 to rotate, which is convenient for performing impact test processing on a plurality of metal workpieces. At the same time, the detection effect can be further refined by comparing the impact conditions of a plurality of metal workpieces.

[0021] The output end of the first cylinder 14 is connected to the pressing plate 15 through an adjusting bolt 23. A limit pin is installed on the outer wall of the adjusting bolt 23 by means of insertion. During operation, the limit pin fixes the adjusting bolt 23 to prevent the pressing plate 15 from loosening. The adjusting bolt 23 mechanism is adopted to facilitate the replacement of the pressing plate 15 according to the specifications of metal workpieces.

[0022] A camera 24 is installed on the left end face inside the fixed cavity 1. The camera 24 is arranged obliquely. A control panel 25 is installed on the left end face of the fixed cavity 1. A lighting lamp 26 is installed on the right end face inside the fixed cavity 1. The lighting lamp 26 is arranged obliquely. A PLC program is written in the control panel 25. During operation, the camera 24 is electrically connected to the control panel 25. The camera 24 takes pictures of the impact situation on the surface of the metal workpiece. It is convenient to observe the shooting situation through the control panel 25, and the safety is high. The lighting lamp 26 can take pictures of the internal environment of the fixed cavity 1 to ensure the shooting effect of the camera 24.

[0023] During specific operation, the cold air blower 16 is started, and cold air is introduced into the fixed cavity 1 through a cold air duct to keep the inside at a low temperature state. A plurality of metal workpieces are placed on the bottom plate 12. After the pressing plate 15 knocks on a single metal workpiece, the adjusting motor 21 is started to drive the driving gear 19 to rotate. The driving gear 19 drives the driven gear 18 to rotate, so that the base 2 rotates, facilitating the impact test of a plurality of metal workpieces. At the same time, by comparing the impact situations of a plurality of metal workpieces, the detection effect is further refined.

[0024] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A low temperature impact testing device for metal workpieces, comprising a fixed cavity (1) and a base (2), characterized in that: A fixed door is rotatably mounted on the front end face of the fixed cavity (1) via a pin shaft, a base (2) is mounted on the bottom of the fixed cavity (1), a placement groove is provided on the upper end face of the base (2), an adjusting cylinder (11) is mounted on the bottom of the placement groove, a bottom plate (12) is mounted on the output end of the adjusting cylinder (11), a suction cup (13) is embedded on the upper end face of the bottom plate (12), a first cylinder (14) is mounted on the top of the fixed cavity (1), a pressure plate (15) is mounted on the output end of the first cylinder (14), a cooling fan (16) is mounted on the rear end face of the fixed cavity (1), the cooling fan (16) and the fixed cavity (1) are connected via a cooling air pipe, and a temperature sensor (17) is mounted on the left end face of the fixed cavity (1).

2. A low temperature impact testing device for metal workpieces according to claim 1, characterized in that A driven gear (18) is installed on the outer wall of the base (2), a driving gear (19) is installed on the right side of the driven gear (18) for meshing and rotation, an adjusting motor (21) is installed on the upper end surface of the driving gear (19), and a plurality of suction cups (13) are embedded in the upper end surface of the bottom plate (12) along its circumferential direction.

3. A low temperature impact testing device for metal workpieces according to claim 1, characterized in that: A plurality of insertion rods (22) are installed on the upper end surface of the base (2) along its circumferential direction, and the insertion rods (22) are installed on the bottom of the base plate (12) in a sliding manner.

4. A low temperature impact testing device for metal workpieces according to claim 2, characterized in that: The output end of the first cylinder (14) is connected to the pressure plate (15) via an adjusting bolt (23), and a limit pin is installed on the outer side wall of the adjusting bolt (23) by plugging.

5. A low temperature impact testing device for metal workpieces according to claim 4, characterized in that: A camera (24) is installed on the left end surface of the fixed cavity (1), the camera (24) is arranged obliquely, and a control panel (25) is installed on the left end surface of the fixed cavity (1).

6. A low temperature impact testing device for metal workpieces according to claim 1, characterized in that: A lighting lamp (26) is installed on the right end surface of the fixed cavity (1), and the lighting lamp (26) is arranged obliquely.

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