Hardness detector for mechanical casting

Abstract

The utility model belongs to the technical field of hardness detection, and particularly relates to a mechanical casting hardness detector which comprises a device base, the top of the device base is fixedly connected with a fixing frame. A stand column is fixedly connected to the outer surface wall of the device base. The inner surface wall of the stand column is in threaded connection with an adjusting screw. The top of the adjusting screw rod is fixedly connected with a knob; the bottom of the adjusting screw rod is rotationally connected with a vertical foot; the top of the vertical foot is fixedly connected with a limiting rod; the limiting rods are slidably connected to the inner surface walls of the stand columns. A clamping groove is formed in the top of the device base; a servo motor is installed on the side face of the device base, in the working process, the stand column and the stand feet are arranged to support the detection machine, meanwhile, a rotary knob is rotated to enable an adjusting screw rod to rotate to drive the stand feet to move downwards under the limiting assistance of a limiting rod, and therefore when the stand feet of the detection machine are suspended, the positions of the stand feet can be effectively adjusted, and the detection accuracy is improved. The stability of the detector is improved.

Description

Technical Field

[0001] This utility model belongs to the field of hardness testing technology, specifically a hardness testing machine for mechanical castings. Background Technology

[0002] Hardness testing of mechanical castings is an important step in evaluating their quality and performance. Commonly used testing methods include Brinell hardness, Rockwell hardness, and Vickers hardness.

[0003] Currently, in existing technologies, mechanical casting hardness testing machines assess hardness by applying a certain load to the material surface and measuring the indentation diameter. This method is suitable for large workpieces and castings.

[0004] Existing mechanical casting hardness testing machines have issues during operation. Because good stability is required during testing, the machine shakes when its legs are suspended in the air, affecting hardness measurement. Therefore, this paper proposes a new mechanical casting hardness testing machine to address these problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background art, this utility model proposes a mechanical casting hardness testing machine.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A mechanical casting hardness testing machine of this utility model includes a device base; a fixing frame is fixedly connected to the top of the device base; a column is fixedly connected to the outer wall of the device base; an adjusting screw is threadedly connected to the inner wall of the column; a knob is fixedly connected to the top of the adjusting screw; a foot is rotatably connected to the bottom of the adjusting screw; a limit rod is fixedly connected to the top of the foot; the limit rod is slidably connected to the inner wall of the column; a clamping groove is opened on the top of the device base; and a servo motor is installed on the side of the device base.

[0007] Preferably, the output end of the servo motor is fixedly connected to a clamping screw; the clamping screw is rotatably connected to the inner surface wall of the device base; the outer surface wall of the clamping screw is threadedly connected to a clamping body; and the clamping body is slidably connected to the device base.

[0008] Preferably, the clamping body has a sliding groove; and a sliding block is slidably connected to the inner surface of the clamping body.

[0009] Preferably, a clamping pliers are fixedly connected to the bottom of the sliding block; a damping rod is fixedly connected to the side of the clamping pliers through the clamping body; the damping rod is slidably connected to the clamping body.

[0010] Preferably, a sliding plate is fixedly connected to the side of the clamping pliers through the clamping body; the sliding plate is slidably connected to the inner surface wall of the clamping body; and a damping spring is fixedly connected to the clamping pliers through the clamping body.

[0011] Preferably, a trigger block is fixedly connected to the side of the clamping pliers; a pressure switch is installed on the side of the clamping body.

[0012] Preferably, an electric actuator is installed on the inner surface of the fixing frame; the output end of the electric actuator is fixedly connected to a detection end.

[0013] The beneficial effects of this utility model are:

[0014] This utility model provides a mechanical casting hardness testing machine. By setting up columns and feet to support the testing machine, the adjustment screw can be rotated by rotating the knob, which in turn drives the feet to move downward with the help of the limiting rod. This allows the position of the feet to be effectively adjusted when the testing machine is suspended in the air, thereby improving the stability of the testing machine.

[0015] This utility model provides a mechanical casting hardness testing machine. By setting a servo motor in conjunction with a clamping screw, the clamping bodies move closer together to clamp the casting, while a trigger structure is set to shut off the servo motor in time, thus optimizing the problem of casting compression caused by traditional fixing methods. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 This is a perspective view of the base of the device in this utility model;

[0020] Figure 3 This is an enlarged view of point A in this utility model;

[0021] Figure 4 This is an enlarged view of section B in this utility model.

[0022] Legend:

[0023] 1. Device base; 2. Fixing frame; 3. Electric actuator; 4. Detection end; 5. Column; 6. Servo motor; 7. Clamping screw; 8. Knob; 9. Clamping body; 10. Clamping clamp; 11. Damping rod; 12. Sliding plate; 13. Damping spring; 14. Trigger block; 15. Pressure switch; 16. Adjusting screw; 17. Stand; 18. Limiting rod; 19. Sliding block; 20. Sliding groove; 21. Clamping groove. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1-4 This utility model provides a mechanical casting hardness testing machine, including a device base 1; a fixing frame 2 is fixedly connected to the top of the device base 1; a column 5 is fixedly connected to the outer wall of the device base 1; an adjusting screw 16 is threadedly connected to the inner wall of the column 5; a knob 8 is fixedly connected to the top of the adjusting screw 16; a foot 17 is rotatably connected to the bottom of the adjusting screw 16; a limit rod 18 is fixedly connected to the top of the foot 17; the limit rod 18 is slidably connected to the inner wall of the column 5; the top of the device base 1 is open. The device is equipped with a clamping groove 21; a servo motor 6 is installed on the side of the device base 1; during operation, when the hardness tester's foot 17 is suspended in the air, the knob 8 on the suspended part can be rotated, causing the knob 8 to drive the adjusting screw 16 to rotate and descend through the thread inside the column 5. At the same time, because the foot 17 is rotatably connected to the adjusting screw 16, the descent of the adjusting screw 16 will drive the foot 17 to descend horizontally under the limit of the limiting rod 18 until the foot 17 is no longer suspended in the air, thereby playing a role in stabilizing the hardness tester.

[0027] Furthermore, such as Figure 2 and Figure 3As shown, the output end of the servo motor 6 is fixedly connected to a clamping screw 7; the clamping screw 7 is rotatably connected to the inner wall of the device base 1; the outer wall of the clamping screw 7 is threadedly connected to a clamping body 9; the clamping body 9 is slidably connected to the device base 1; the clamping body 9 has a sliding groove 20; the inner wall of the clamping body 9 is slidably connected to a sliding block 19; the bottom of the sliding block 19 is fixedly connected to a clamping clamp 10; the side of the clamping clamp 10 is fixedly connected to a damping rod 11 through the clamping body 9; the damping rod 11 is slidably connected to the clamping body 9; the side of the clamping clamp 10 is fixedly connected to a sliding plate 12 through the clamping body 9; the sliding plate 12 is slidably connected to the inner wall of the clamping body 9; the clamping clamp 10 is fixedly connected to a damping spring 13 through the clamping body 9; the side of the clamping clamp 10 is fixedly connected to a trigger block 14; a pressure switch 15 is installed on the side of the clamping body 9; an electric push rod 3 is installed on the inner wall of the fixing frame 2; a detection end 4 is fixedly connected to the output end of the electric push rod 3. During operation, the casting is placed between the clamping clamps 10. Then, the servo motor 6 is started to drive the clamping screw 7, which has a mirrored thread along the middle part, to rotate. This causes the clamping body 9 to move the clamping clamps 10 closer together until the clamping clamps 10 contact the casting. Under the limit of the sliding plate 12, the clamping clamps 10 cause the damping rod 11 to slide against the clamping body 9. At this time, the damping spring 13 is compressed synchronously, and the trigger block 14 moves closer to the pressure switch 15 until it contacts the pressure switch 15. Then, the pressure switch 15 shuts off the servo motor 6 and stops clamping, thereby using the compressed damping spring 13 to provide a suitable clamping force.

[0028] Working principle: When the stand 17 of the hardness testing machine is suspended in the air, the knob 8 on the suspended part can be rotated. This causes the adjusting screw 16 to rotate and descend along the internal thread of the column 5. Simultaneously, because the stand 17 is rotatably connected to the adjusting screw 16, the descent of the adjusting screw 16 will cause the stand 17 to descend horizontally under the limit of the limiting rod 18 until the stand 17 is no longer suspended. This helps to stabilize the hardness testing machine, allowing the casting to be placed between the clamps 10. Then, the servo motor 6 can be started to drive the casting along the middle section... The clamping screw 7, which has a mirrored thread, rotates, causing the clamping body 9 to move the clamping clamp 10 closer together until the clamping clamp 10 contacts the casting. Under the limit of the sliding plate 12, the clamping clamp 10 causes the damping rod 11 to slide with the clamping body 9. At this time, the damping spring 13 is compressed synchronously, and the trigger block 14 moves closer to the pressure switch 15 until it contacts the pressure switch 15. Then, the pressure switch 15 shuts off the servo motor 6 and stops clamping, thereby using the compressed damping spring 13 to provide a suitable clamping force.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A mechanical casting hardness testing machine, comprising a device base (1); characterized in that: A fixing frame (2) is fixedly connected to the top of the device base (1); a column (5) is fixedly connected to the outer wall of the device base (1); an adjusting screw (16) is threadedly connected to the inner wall of the column (5); a knob (8) is fixedly connected to the top of the adjusting screw (16); a foot (17) is rotatably connected to the bottom of the adjusting screw (16); a limit rod (18) is fixedly connected to the top of the foot (17); the limit rod (18) is slidably connected to the inner wall of the column (5); a clamping groove (21) is opened on the top of the device base (1); a servo motor (6) is installed on the side of the device base (1).

2. The mechanical casting hardness testing machine as described in claim 1, characterized in that: The output end of the servo motor (6) is fixedly connected to a clamping screw (7); the clamping screw (7) is rotatably connected to the inner surface wall of the device base (1); the outer surface wall of the clamping screw (7) is threadedly connected to a clamping body (9); the clamping body (9) is slidably connected to the device base (1).

3. The mechanical casting hardness testing machine as described in claim 2, characterized in that: The clamping body (9) has a sliding groove (20); the inner surface of the clamping body (9) is slidably connected to a sliding block (19).

4. The mechanical casting hardness testing machine as described in claim 3, characterized in that: The bottom of the sliding block (19) is fixedly connected to a clamping pliers (10); the side of the clamping pliers (10) is fixedly connected to a damping rod (11) through the clamping body (9); the damping rod (11) is slidably connected to the clamping body (9).

5. The mechanical casting hardness testing machine as described in claim 4, characterized in that: A sliding plate (12) is fixedly connected to the side of the clamping clamp (10) through the clamping body (9); the sliding plate (12) is slidably connected to the inner surface wall of the clamping body (9); and a damping spring (13) is fixedly connected to the clamping clamp (10) through the clamping body (9).

6. The mechanical casting hardness testing machine as described in claim 5, characterized in that: A trigger block (14) is fixedly connected to the side of the clamping clamp (10); a pressure switch (15) is installed on the side of the clamping body (9).

7. The mechanical casting hardness testing machine as described in claim 1, characterized in that: An electric actuator (3) is installed on the inner wall of the fixed frame (2); a detection end (4) is fixedly connected to the output end of the electric actuator (3).

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