Auxiliary calibration device of pull and push dynamometer

Abstract

The utility model belongs to the technical field of push-pull force meters, and particularly relates to an auxiliary calibration device of a push-pull force meter, which comprises a mounting frame, a first sliding groove is formed in the bottom of the inner wall of the mounting frame, a first sliding rod is fixedly arranged on the inner wall of the first sliding groove, a first spring is sleeved on the outer wall of the circumference of the first sliding rod, and a sliding block is slidably connected to the inner wall of the first sliding groove. The end of the first sliding rod penetrates through the sliding block and is in sliding connection with the sliding block, and a push plate is fixedly arranged at the top of the sliding block. A weight is hung on a hook at the bottom of a push-pull dynamometer, the outer wall of the weight is in contact with the inner side wall of a push plate, the weight is kept vertically downward, the weight can be limited and blocked through the push plate, and a handle is pushed to drive the push plate to move slowly, so that the push plate drives a sliding block to slide along the outer wall of a first sliding rod. At the moment, the swing amplitude of the weight can be reduced, so that the weight is rapidly kept static, an operator can conveniently and rapidly read, and the calibration precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of push-pull force gauges, and more specifically to an auxiliary calibration device for push-pull force gauges. Background Art

[0002] A force gauge is a mechanical measuring instrument used to measure thrust and pull. It usually consists of a force sensor and a display device. The force sensor converts the force into an electrical signal, and the display device converts the electrical signal into a readable value.

[0003] In the existing technology and the document with publication number CN209117251U, the device mainly calibrates the push-pull force gauge by measuring weights. During the operation, when the operator hangs the measuring weights on the end of the push-pull force gauge, the measuring weights usually swing for a long time. At this time, the measured value will cause deviation to the calibration accuracy. Therefore, it is necessary to wait until the measuring weights stop swinging before reading, resulting in a long detection time. For this reason, we propose an auxiliary calibration device for push-pull force gauges Utility Model Content

[0004] Based on the above-mentioned technical problem that "in the existing technology, during the operation of the device, when the operator hangs the measuring weight on the end of the push-pull force gauge, the measuring weight usually swings for a long time. At this time, the measured value will cause a deviation in the calibration accuracy. Therefore, it is necessary to wait until the measuring weight stops swinging to take the reading, resulting in a long detection time", the utility model proposes an auxiliary calibration device for a push-pull force gauge.

[0005] The utility model proposes an auxiliary calibration device for a push-pull dynamometer, comprising a mounting frame, a first sliding groove is provided at the bottom of the inner wall of the mounting frame, a first sliding rod is fixedly provided on the inner wall of the first sliding groove, a first spring is sleeved on the circumferential outer wall of the first sliding rod, a sliding block is slidably connected to the inner wall of the first sliding groove, an end of the first sliding rod passes through the sliding block and is slidably connected to the sliding block, a push plate is fixedly provided on the top of the sliding block, an inner side wall of the push plate contacts the outer wall of a measuring weight, and a handle is fixedly provided on the bottom of the inner wall of the push plate.

[0006] Preferably, one end of the first spring is connected and fixed to the inner wall of the first sliding groove, and the other end of the first spring is connected and fixed to the side wall of the slider.

[0007] Preferably, an electric push rod is fixedly provided on the top of the mounting frame, the electric push rod is fixed on the top of the mounting frame, the output end of the electric push rod passes through the mounting frame and is slidably connected thereto, and a connecting frame is fixedly provided on the bottom of the output end of the electric push rod.

[0008] Preferably, a first fixing frame is fixedly provided at the bottom of the connecting frame, a connecting arm is fixedly provided on the outer wall of the first fixing frame, a second fixing frame is slidably connected to the inner wall of the first fixing frame, a second sliding groove is provided on the outer wall of the second fixing frame, an end portion of the connecting arm extends into the second sliding groove and is slidably connected thereto, a second sliding rod is fixedly provided on the inner wall of the second sliding groove, a second spring is sleeved on the circumferential outer wall of the second sliding rod, and an end portion of the second sliding rod passes through the connecting arm and is slidably connected thereto.

[0009] Preferably, one end of the second spring is connected and fixed to the connecting arm, and the other end of the second spring is connected and fixed to the inner wall of the second sliding groove.

[0010] Preferably, a card slot is provided at the end of each of the first fixing frame and the second fixing frame, a push-pull force gauge is carded between the first fixing frame and the second fixing frame, and two output ends of the push-pull force gauge are respectively located in the card slot; installation slots are provided at both ends of the bottom of the second fixing frame, and the inner walls of the two installation slots are rotatably connected with rotating shafts; the circumferential outer walls of the two rotating shafts are fixed with pressure arms, and the outer walls of the two pressure arms are fixed with connecting frames, and the ends of the two pressure arms are respectively in contact with the outer walls of the push-pull force gauge, and the outer ends of the two rotating shafts extend to the outside of the second fixing frame, and the outer ends of the two rotating shafts are sleeved with torsion springs, and the outer ends of the two rotating shafts are fixed with end covers, and the ends of the push-pull force gauges are threadedly connected with hooks.

[0011] Preferably, one end of the torsion spring is connected and fixed to the end cover, and the other end of the torsion spring is connected and fixed to the outer wall of the second fixing frame.

[0012] The beneficial effects of the present invention are:

[0013] 1. By hanging the weight on the hook at the bottom of the push-pull dynamometer, the outer wall of the weight is in contact with the inner wall of the push plate, and the weight remains vertically downward. The push plate can limit the weight and block it. By pushing the handle to drive the push plate to move slowly, the push plate drives the slider to slide along the outer wall of the first slide rod until the push plate is out of contact with the weight. At this time, the swing amplitude of the weight can be reduced, so that the weight can quickly remain stationary, which is convenient for the operator to read quickly and improves the accuracy of calibration.

[0014] 2. Pull the connecting frame downward to drive the second fixing frame to slide downward. At this time, the connecting arm slides upward along the second sliding rod, and the second spring is stretched. By placing the push-pull force gauge between the first fixing frame and the second fixing frame, loosen the connecting frame, and under the tension of the second spring, the first fixing frame and the second fixing frame are close to each other, so that the two ends of the push-pull force gauge housing can be quickly squeezed and fixed.

[0015] 3. By flipping the connecting frame downward, the two pressure arms are driven to rotate downward along the rotating shaft through the connecting frame. When the connecting frame is flipped to the bottom of the second fixed frame, under the action of the torsion force of the torsion spring, the two pressure arms can flip upward and squeeze the outer wall of the push-pull dynamometer housing at the same time, thereby improving the stability of the push-pull dynamometer installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the push plate of the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection between the first fixing frame and the second fixing frame of the utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the connecting arm of the utility model;

[0021] Figure 6 This is a schematic diagram of the installation structure of the hook of the utility model.

[0022] In the figure: 1. mounting frame; 2. first slide groove; 3. slider; 4. first slide rod; 5. first spring; 6. push plate; 7. handle; 8. electric push rod; 9. connecting frame; 10. first fixed frame; 11. connecting arm; 12. second fixed frame; 13. second slide groove; 14. second slide rod; 15. second spring; 16. slot; 17. mounting slot; 18. rotating shaft; 19. torsion spring; 20. end cover; 21. pressure arm; 22. connecting frame; 23. push-pull force gauge; 24. hook. DETAILED DESCRIPTION

[0023] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the present invention, unless otherwise clearly specified and limited, the terms "connection and fixation" and "fixed installation" should be understood in a broad sense. For example, "fixed installation" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or a direct connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1 and Figure 2As shown, an auxiliary calibration device for a push-pull force gauge includes a mounting frame 1, a first slide groove 2 is opened at the bottom of the inner wall of the mounting frame 1, a first slide rod 4 is fixedly arranged on the inner wall of the first slide groove 2, a first spring 5 is sleeved on the outer wall of the circumference of the first slide rod 4, a slider 3 is slidably connected to the inner wall of the first slide groove 2, the end of the first slide rod 4 passes through the slider 3 and is slidably connected thereto, a push plate 6 is fixedly arranged on the top of the slider 3, the inner side wall of the push plate 6 contacts the outer wall of the measuring weight, a handle 7 is fixedly arranged on the bottom of the inner wall of the push plate 6, one end of the first spring 5 is connected and fixed to the inner wall of the first slide groove 2, and the other end of the first spring 5 is fixed to the inner wall of the first slide groove 2. One end is connected and fixed to the side wall of the slider 3, and the weight is hung on the hook 24 at the bottom of the push-pull dynamometer 23. At this time, the outer wall of the weight is in contact with the inner wall of the push plate 6, and the weight is kept vertically downward. The push plate 6 can limit the weight and block it. By pushing the handle 7 to drive the push plate 6 to move slowly, the push plate 6 drives the slider 3 to slide along the outer wall of the first slide rod 4 until the push plate 6 is out of contact with the weight. At this time, the swing amplitude of the weight can be reduced, so that the weight can quickly remain stationary, which is convenient for the operator to quickly read the reading and improves the calibration accuracy.

[0025] like Figure 3 , Figure 4 and Figure 5 As shown, an electric push rod 8 is fixed on the top of the mounting frame 1, and the electric push rod 8 is fixed on the top of the mounting frame 1. The output end of the electric push rod 8 passes through the mounting frame 1 and is slidably connected thereto. A connecting frame 9 is fixed on the bottom of the output end of the electric push rod 8, and a first fixing frame 10 is fixed on the bottom of the connecting frame 9. A connecting arm 11 is fixed on the outer wall of the first fixing frame 10, and a second fixing frame 12 is slidably connected to the inner wall of the first fixing frame 10. A second slide groove 13 is opened on the outer wall of the second fixing frame 12, and the end of the connecting arm 11 extends into the second slide groove 13 and is slidably connected thereto. A second slide rod 14 is fixed on the inner wall of the second slide groove 13, and a second spring 15 is sleeved on the circumferential outer wall of the second slide rod 14. The end of the slide rod 14 passes through the connecting arm 11 and is slidably connected thereto, one end of the second spring 15 is connected and fixed to the connecting arm 11, and the other end of the second spring 15 is connected and fixed to the inner wall of the second slide groove 13. The connecting frame 22 is pulled downward to drive the second fixing frame 12 to slide downward. At this time, the connecting arm 11 slides upward along the second slide rod 14, and the second spring 15 is stretched. By placing the push-pull dynamometer 23 between the first fixing frame 10 and the second fixing frame 12, the connecting frame 22 is loosened. Under the pulling force of the second spring 15, the first fixing frame 10 and the second fixing frame 12 are close to each other, so that the two ends of the shell of the push-pull dynamometer 23 can be quickly squeezed and fixed.

[0026] like Figure 5 and Figure 6As shown, the first fixing frame 10 and the second fixing frame 12 are both provided with a card slot 16 at the end, a push-pull force gauge 23 is clamped between the first fixing frame 10 and the second fixing frame 12, and the two output ends of the push-pull force gauge 23 are respectively located in the card slot 16, and the bottom two ends of the second fixing frame 12 are respectively provided with a mounting slot 17, and the inner walls of the two mounting slots 17 are rotatably connected with a rotating shaft 18, and the outer walls of the two rotating shafts 18 are both fixed with a pressure arm 21, and the outer walls of the two pressure arms 21 are fixed with a connecting frame 22, and the ends of the two pressure arms 21 are respectively abutted against the outer wall of the push-pull force gauge 23, and the outer ends of the two rotating shafts 18 extend to the outside of the second fixing frame 12. The outer ends are both sleeved with torsion springs 19, the outer ends of the two rotating shafts 18 are both fixed with end covers 20, the end of the push-pull dynamometer 23 is threadedly connected with a hook 24, one end of the torsion spring 19 is connected and fixed to the end cover 20, and the other end of the torsion spring 19 is connected and fixed to the outer wall of the second fixed frame 12. By flipping the connecting frame 22 downward, the two pressure arms 21 are driven to rotate downward along the rotating shaft 18 through the connecting frame 22. When the connecting frame 22 is flipped to the bottom of the second fixed frame 12, under the action of the torsion force of the torsion spring 19, the two pressure arms 21 can be flipped upward at this time, and the outer wall of the shell of the push-pull dynamometer 23 is squeezed, thereby improving the installation stability of the push-pull dynamometer 23.

[0027] Working principle: by flipping the connection frame 22 downward, the two pressure arms 21 are driven to rotate downward along the rotating shaft 18 through the connection frame 22. When the connection frame 22 is flipped to the bottom of the second fixing frame 12, the connection frame 22 is pulled downward to drive the second fixing frame 12 to slide downward. At this time, the connection arm 11 slides upward along the second sliding rod 14, and the second spring 15 is stretched;

[0028] By placing the push-pull force gauge 23 between the first fixing frame 10 and the second fixing frame 12, loosening the connecting frame 22, under the pulling force of the second spring 15, the first fixing frame 10 and the second fixing frame 12 are close to each other, so that the two ends of the housing of the push-pull force gauge 23 can be squeezed and fixed;

[0029] Under the torsion force of the torsion spring 19, the two pressing arms 21 can flip upwards and squeeze the outer wall of the push-pull dynamometer 23 at the same time, thereby improving the installation stability of the push-pull dynamometer 23;

[0030] By hanging the weight on the hook 24 at the bottom of the push-pull dynamometer 23, the outer wall of the weight is in contact with the inner wall of the push plate 6, and the weight remains vertically downward. The push plate 6 can limit the weight and block it. By pushing the handle 7 to drive the push plate 6 to move slowly, the push plate 6 drives the slider 3 to slide along the outer wall of the first slide rod 4 until the push plate 6 breaks away from contact with the weight. At this time, the swing amplitude of the weight can be reduced, so that the weight can quickly remain stationary, which is convenient for the operator to quickly read the reading and improves the calibration accuracy.

[0031] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An auxiliary calibration device for a push-pull force gauge, comprising a mounting frame (1), characterized in that: A first slide groove (2) is provided at the bottom of the inner wall of the mounting frame (1), a first slide rod (4) is fixedly provided on the inner wall of the first slide groove (2), a first spring (5) is sleeved on the circumferential outer wall of the first slide rod (4), a slider (3) is slidably connected to the inner wall of the first slide groove (2), an end of the first slide rod (4) passes through the slider (3) and is slidably connected thereto, a push plate (6) is fixedly provided on the top of the slider (3), an inner side wall of the push plate (6) contacts the outer wall of the measuring weight, and a handle (7) is fixedly provided on the bottom of the inner wall of the push plate (6).

2. The auxiliary calibration device for push-pull force gauge according to claim 1, characterized in that: One end of the first spring (5) is connected and fixed to the inner wall of the first sliding groove (2), and the other end of the first spring (5) is connected and fixed to the side wall of the sliding block (3).

3. The auxiliary calibration device for push-pull force gauge according to claim 1, characterized in that: An electric push rod (8) is fixedly arranged on the top of the mounting frame (1), and the electric push rod (8) is fixed on the top of the mounting frame (1). The output end of the electric push rod (8) passes through the mounting frame (1) and is slidably connected thereto. A connecting frame (9) is fixedly arranged on the bottom of the output end of the electric push rod (8).

4. The auxiliary calibration device for a push-pull dynamometer according to claim 3, characterized in that: A first fixing frame (10) is fixedly arranged at the bottom of the connecting frame (9); a connecting arm (11) is fixedly arranged on the outer wall of the first fixing frame (10); a second fixing frame (12) is slidably connected to the inner wall of the first fixing frame (10); a second sliding groove (13) is opened on the outer wall of the second fixing frame (12); an end of the connecting arm (11) extends into the second sliding groove (13) and is slidably connected thereto; a second sliding rod (14) is fixedly arranged on the inner wall of the second sliding groove (13); a second spring (15) is sleeved on the circumferential outer wall of the second sliding rod (14); an end of the second sliding rod (14) passes through the connecting arm (11) and is slidably connected thereto.

5. The auxiliary calibration device for push-pull force gauge according to claim 4, characterized in that: One end of the second spring (15) is connected and fixed to the connecting arm (11), and the other end of the second spring (15) is connected and fixed to the inner wall of the second sliding groove (13).

6. The auxiliary calibration device for push-pull force gauge according to claim 4, characterized in that: The first fixing frame (10) and the second fixing frame (12) are both provided with a card slot (16) at their ends, a push-pull force gauge (23) is card-connected between the first fixing frame (10) and the second fixing frame (12), two output ends of the push-pull force gauge (23) are respectively located in the card slot (16), and the bottom ends of the second fixing frame (12) are respectively provided with a mounting slot (17), the inner walls of the two mounting slots (17) are both rotatably connected with a rotating shaft (18), and the circumference of the two rotating shafts (18) is The outer walls are fixedly provided with pressure arms (21), the outer walls of the two pressure arms (21) are fixedly provided with connection frames (22), the ends of the two pressure arms (21) are respectively in contact with the outer walls of the push-pull force gauge (23), the outer ends of the two rotating shafts (18) extend to the outside of the second fixing frame (12), the outer ends of the two rotating shafts (18) are sleeved with torsion springs (19), the outer ends of the two rotating shafts (18) are fixedly provided with end covers (20), and the ends of the push-pull force gauge (23) are threadedly connected with hooks (24).

7. The auxiliary calibration device for a push-pull dynamometer according to claim 6, characterized in that: One end of the torsion spring (19) is connected and fixed to the end cover (20), and the other end of the torsion spring (19) is connected and fixed to the outer wall of the second fixing frame (12).

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