A tension force measuring instrument calibration device
Patent Information
- Application Number
- CN202522516162.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-11-27
AI Technical Summary
然而，传统的校准方式存在一些不足，例如，在对多个拉力计进行校准检测时，通常是先将一个拉力计底部的挂钩与拉力传感器顶部的检测端相连接，并通过机械施加拉力完成校准后，再拆卸更换下一个拉力计进行同样的操作，整个过程较为繁琐，影响校准效率，有待改进
1．本实用新型通过二号电动伸缩杆和推板的配合，便于推动多个拉力计在两个L形放置架的内部移动，从而将最前方的拉力计推至两个L形拉板之间的内部，同时使前方的拉力计底部的挂钩移动至挂环的内部，此时向上拉动拉力计，拉力传感器对受到的拉力进行检测，同时观察拉力计的显示值，将拉力计显示值与拉力传感器检测值进行对比，从而判断拉力计的准确性和精度，当一个拉力计校准完成后，通过伺服电机、螺杆和定位块的配合，带动拉力传感器和挂环向右平移，使挂环从当前已校准的拉力计挂钩中脱离，随后二号电动伸缩杆继续推动剩余的拉力计向前移动，并驱动拉力传感器和挂环反向移动进行复位，使下一个待校准的拉力计底部的挂钩进入挂环内部，如此循环操作，即可快速且连续地对多个拉力计进行校准检测，提高了校准效率，减少了人工拆卸更换拉力计的步骤。
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Figure CN224851060U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calibration device technology, and more specifically to a calibration device for a tensile measuring instrument. Background Technology
[0002] Tensile measuring instruments are used to measure the tensile force or tension acting on an object, and are commonly used in industry, scientific research, and quality inspection. Their core function is to convert mechanical force into an electrical signal through a sensor, displaying the tensile force value digitally or with a pointer. A common type of tensile measuring instrument is a force gauge with a hook. Currently, calibrating a force gauge typically involves using standard weights or a force sensor. This is done by connecting the hook at the bottom of the force gauge to the sensing end at the top of the force sensor, applying a tensile force, and comparing the displayed value of the force gauge with the value detected by the force sensor to determine the accuracy and precision of the force gauge. However, traditional calibration methods have some shortcomings. For example, when calibrating multiple force gauges, it is common practice to first connect the hook at the bottom of one force gauge to the sensing end at the top of the force sensor, apply mechanical force to complete the calibration, and then disassemble and replace it with the next force gauge for the same operation. This process is cumbersome and affects calibration efficiency, and needs improvement. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a calibration device for tensile measuring instruments to solve the problems existing in the background art.
[0004] This utility model provides the following technical solution: a calibration device for a tensile measuring instrument, comprising a base, a fixed frame fixedly installed at the front of the top of the base, a limiting plate provided at the upper part inside the fixed frame, two L-shaped pull plates symmetrically fixedly connected to the bottom of the limiting plate, two L-shaped front frames symmetrically fixedly connected to the front of the top of the base, the backs of the two L-shaped front frames overlapping the fronts of the two L-shaped pull plates, two L-shaped placement frames fixedly installed at the rear of the top of the base, the fronts of the two L-shaped placement frames overlapping the backs of the two L-shaped pull plates, a plurality of tensile gauges are provided inside between the two L-shaped placement frames, hooks are fixedly installed at the tensile end of the bottom of the plurality of tensile gauges, the hooks are located below between the two L-shaped placement frames, a tensile sensor overlaps at the front of the top of the base, a hanging ring is fixedly installed at the detection end of the top of the tensile sensor, a notch is opened on the left side of the hanging ring, and the hanging ring is located directly in front of the hook.
[0005] Furthermore, a control panel is fixedly installed on the right side of the front of the fixed frame, and a first electric telescopic rod is fixedly installed in the middle of the top of the fixed frame. The telescopic end of the first electric telescopic rod extends into the interior of the fixed frame and is fixedly installed in the middle of the top of the limiting plate. Slide grooves are provided on the upper sides of both sides of the inner wall of the fixed frame, and the two sides of the limiting plate are slidably connected to the interior of the slide grooves. The two sides of the limiting plate are located below the interior of the slide grooves.
[0006] Furthermore, a fixing plate is fixedly connected to the rear end of the two L-shaped placement racks, and a second electric telescopic rod is fixedly installed on the back of the fixing plate. The telescopic end of the second electric telescopic rod extends to the rear inside the space between the two L-shaped placement racks and is fixedly connected to a push plate.
[0007] Furthermore, a mounting groove is provided at the front of the top of the base, and a positioning block is slidably disposed on the left side inside the mounting groove. The top of the positioning block is fixedly installed in the middle of the bottom of the tension sensor.
[0008] Furthermore, a servo motor is fixedly installed on the right side inside the mounting slot, and a screw is fixedly installed on the output end of the servo motor through a coupling. The left end of the screw is rotatably installed on the left side of the inner wall of the mounting slot through a bearing.
[0009] Furthermore, four straight rods are fixedly installed inside the mounting groove, and the four corners of the positioning block are slidably sleeved on the outer walls of the four straight rods. A retaining ring is fixedly connected to the left side of the outer wall of the straight rod, and the right side of the retaining ring overlaps the left side of the positioning block.
[0010] The technical effects and advantages of this utility model are as follows: 1. This utility model, through the cooperation of a second electric telescopic rod and a push plate, facilitates the movement of multiple tension gauges within two L-shaped mounting brackets. This pushes the foremost tension gauge between the two L-shaped pull plates, simultaneously moving the hook at the bottom of the foremost tension gauge into the hanging ring. Pulling the tension gauge upwards allows the force sensor to detect the applied force, and the displayed value is observed. Comparing the displayed value with the force sensor's detection value determines the gauge's accuracy and precision. Once one tension gauge is calibrated, the servo motor, screw, and positioning block work together to move the force sensor and hanging ring to the right, disengaging the hanging ring from the hook of the calibrated gauge. The second electric telescopic rod then continues to push the remaining tension gauges forward, driving the force sensor and hanging ring to move in the opposite direction for reset, allowing the hook of the next tension gauge to be calibrated to enter the hanging ring. This cyclical operation allows for rapid and continuous calibration of multiple tension gauges, improving calibration efficiency and reducing the need for manual disassembly and replacement.
[0011] 2. This utility model, through the cooperation of a No. 1 electric telescopic rod, a limiting plate, and two L-shaped pull plates, facilitates the upward movement of the tension gauge to be calibrated, so that the tension gauge hook applies a pulling force to the tension sensor upward through the hanging ring. By comparing the value displayed by the tension gauge with the value detected by the tension sensor, it is easy to judge the accuracy and precision of the tension gauge. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective.
[0014] Figure 3 This is a cross-sectional view of the fixing frame structure of this utility model.
[0015] Figure 4 This is a schematic diagram of the base, tension sensor, hanging ring, and mounting groove of this utility model.
[0016] Figure 5 This is a partial cross-sectional view of the base structure of this utility model.
[0017] Figure 6 This is a schematic diagram of the L-shaped pull plate, L-shaped placement rack, and L-shaped front rack of this utility model.
[0018] Figure 7 This is a schematic diagram of the L-shaped placement rack, fixing plate, second electric telescopic rod, and push plate structure of this utility model.
[0019] Figure 8 This is a schematic diagram of the L-shaped placement rack, tension gauge, and hook structure of this utility model.
[0020] The attached diagram is labeled as follows: 1. Base; 2. Fixing frame; 21. Electric telescopic rod No. 1; 22. Limiting plate; 23. L-shaped pull plate; 24. Slide groove; 3. L-shaped placement rack; 31. Fixing plate; 32. Electric telescopic rod No. 2; 33. Push plate; 4. Tension gauge; 41. Hook; 5. L-shaped front frame; 6. Tension sensor; 61. Hanging ring; 7. Mounting slot; 71. Servo motor; 72. Screw; 73. Positioning block; 74. Straight rod; 75. Retaining ring; 8. Control panel. Detailed Implementation
[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The calibration device for a tensile measuring instrument involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0022] Example 1: like Figure 1-8 As shown, a calibration device for a tensile measuring instrument includes a base 1. A fixed frame 2 is fixedly installed at the front of the top of the base 1. A limiting plate 22 is provided at the upper part of the inside of the fixed frame 2. Two L-shaped pull plates 23 are symmetrically fixedly connected to the bottom of the limiting plate 22. A control panel 8 is fixedly installed on the right side of the front of the fixed frame 2. A first electric telescopic rod 21 is fixedly installed in the middle of the top of the fixed frame 2. The telescopic end of the first electric telescopic rod 21 extends into the inside of the fixed frame 2 and is fixedly installed in the middle of the top of the limiting plate 22. Slide grooves 24 are opened on the upper part of both sides of the inner wall of the fixed frame 2. The two sides of the limiting plate 22 are slidably connected to the inside of the slide grooves 24. The two sides of the limiting plate 22 are located below the inside of the slide grooves 24. The setting of the first electric telescopic rod 21 facilitates the vertical movement of the limiting plate 22 and the L-shaped pull plates 23, thereby driving the tensile gauge 4 to be calibrated to move upward, which is convenient for calibration. Two L-shaped front supports 5 are symmetrically fixedly connected to the front of the top of the base 1. The back of the two L-shaped front supports 5 overlaps the front of the two L-shaped pull plates 23. Two L-shaped placement supports 3 are fixedly installed at the rear of the top of the base 1. The front of the two L-shaped placement supports 3 overlaps the back of the two L-shaped pull plates 23. Multiple tension gauges 4 are provided inside between the two L-shaped placement supports 3. Hooks 41 are fixedly installed at the bottom tension end of each of the multiple tension gauges 4. The hooks 41 are located below the two L-shaped placement supports 3. A fixing plate 31 is fixedly connected to the rear end between the two L-shaped placement supports 3. A second electric telescopic rod 32 is fixedly installed on the back of the fixing plate 31. The telescopic end of the second electric telescopic rod 32 extends to the two L-shaped placement supports 3. Inside the compartment, a push plate 33 is fixedly connected to the rear. Through the cooperation of the second electric telescopic rod 32 and the push plate 33, multiple tension gauges 4 can be driven to move forward inside the two L-shaped placement frames 3, thereby pushing the foremost tension gauge 4 into the space between the two L-shaped pull plates 23. This facilitates the subsequent calibration of the foremost tension gauge 4. After calibration, multiple tension gauges 4 are pushed forward in the same way, so that the calibrated tension gauge 4, which was originally located between the two L-shaped pull plates 23, is pushed out and moved into the space between the two L-shaped front frames 5, making room for the next tension gauge 4 to be calibrated. The staff can collect the calibrated tension gauge 4 and prepare to calibrate the new tension gauge 4. A tension sensor 6 is attached to the front of the top of the base 1. A hanging ring 61 is fixedly installed on the detection end of the top of the tension sensor 6. A notch is opened on the left side of the hanging ring 61. The hanging ring 61 is located directly in front of the hook 41. A mounting groove 7 is opened at the front of the top of the base 1. A positioning block 73 is slidably installed on the left side inside the mounting groove 7. The top of the positioning block 73 is fixedly installed in the middle of the bottom of the tension sensor 6. A servo motor 71 is fixedly installed on the right side inside the mounting groove 7. A screw 72 is fixedly installed on the output end of the servo motor 71 through a coupling. The left end of the screw 72 is rotatably installed on the left side of the inner wall of the mounting groove 7 through a bearing. Four straight rods 74 are fixedly installed inside the mounting groove 7. The four corners inside the positioning block 73 are slidably sleeved on the outer wall of the four straight rods 74. The left side of the outer wall of the straight rods 74 is fixedly installed. A retaining ring 75 is fixedly connected, with the right side of the retaining ring 75 overlapping the left side of the positioning block 73. The screw 72 is driven to rotate by the servo motor 71. Since the screw 72 and the positioning block 73 are connected by threads, and the positioning block 73 can only slide horizontally under the limiting action of the four straight rods 74, the rotation of the screw 72 will drive the positioning block 73 to move horizontally inside the mounting groove 7. The movement of the positioning block 73 will then drive the tension sensor 6 and the hanging ring 61 to move synchronously. When multiple tension gauges 4 need to be continuously calibrated, the forward and reverse rotation of the servo motor 71 can be controlled to realize the reciprocating movement of the hanging ring 61 in the horizontal direction, so as to conveniently connect or disconnect the hanging ring 61 with the hook 41 at the bottom of different tension gauges 4, thereby improving the continuity and efficiency of calibration.
[0023] In summary, as Figure 1-8As shown, this calibration device for a tension measuring instrument is used by the operator who first places multiple tension gauges 4 to be calibrated sequentially inside the space between two L-shaped mounting brackets 3, ensuring that the hooks 41 at the bottom of each tension gauge 4 are located below the space between the two L-shaped mounting brackets 3, with the openings of the hooks 41 facing forward and corresponding to the position of the hanging rings 61. Then, the second electric telescopic rod 32 is activated. The telescopic end of the second electric telescopic rod 32 pushes the push plate 33 forward, which in turn pushes the multiple tension gauges 4 forward inside the two L-shaped mounting brackets 3, pushing the foremost tension gauge 4 into the space between the two L-shaped pull plates 23. At this point, the bottom of the tension gauge 4... Hook 41 is inserted into the hanging ring 61. Then, the first electric telescopic rod 21 is activated, extending its telescopic end upwards and pushing the limiting plate 22 and the two L-shaped pull plates 23 upwards. The two L-shaped pull plates 23 move the tension gauge 4 to be calibrated upwards. The tension gauge 4 applies an upward pulling force to the hanging ring 61 through the hook 41. The hanging ring 61 transmits the pulling force to the tension sensor 6. The tension sensor 6 detects the received tension and transmits the detected value to the control panel 8 for display. Simultaneously, the operator observes the displayed value of the tension gauge 4 and compares it with the detected value of the tension sensor 6 to determine the performance of the tension gauge 4. For accuracy and precision, once a tension gauge 4 has been calibrated, the servo motor 71 is activated. The output of the servo motor 71 drives the screw 72 to rotate. The screw 72 causes the positioning block 73 to move to the right inside the mounting slot 7. The positioning block 73 causes the tension sensor 6 and the hanging ring 61 to move to the right, so that the notch on the left side of the hanging ring 61 disengages from the hook 41 of the currently calibrated tension gauge 4. Then, the second electric telescopic rod 32 continues to push the remaining tension gauges 4 forward, so that the calibrated tension gauges 4 enter the space between the two L-shaped front frames 5. The next tension gauge 4 to be calibrated enters the space between the two L-shaped pull plates 23. At this point, the calibrated tension gauge is removed. 4. The output of the servo motor 71 is rotated in the opposite direction, causing the screw 72 to drive the positioning block 73, the tension sensor 6, and the hanging ring 61 to move in the opposite direction for reset. At this time, the hanging ring 61 moves through the notch on the left to the hook 41 at the bottom of the tension gauge 4 to be calibrated. Then, the first electric telescopic rod 21 is started again to pull the limit plate 22 and the two L-shaped pull plates 23 upward. The two L-shaped pull plates 23 drive the new tension gauge 4 to be calibrated upward. The same method is used for calibration. This cycle is repeated to quickly and continuously calibrate and test multiple tension gauges 4. The whole calibration process is relatively convenient, reduces manual operation steps, and improves calibration efficiency.
[0024] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the connection position of valve components is provided with anti-leakage rubber strips, the outside of threaded rods or lead rods is provided with dust covers, and the equipment can be driven by either built-in batteries or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The controller can be an external controller or installed in a position that does not affect the use of this device. The controller can play a control role for the electrical components mentioned in this document, and the controller is a conventional known device.
[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A calibration device for a tensile measuring instrument, comprising a base (1), characterized in that, A fixing frame (2) is fixedly installed at the front of the top of the base (1). A limiting plate (22) is provided at the top inside the fixing frame (2). Two L-shaped pull plates (23) are symmetrically fixedly connected to the bottom of the limiting plate (22). Two L-shaped front brackets (5) are symmetrically fixedly connected to the front of the top of the base (1). The backs of the two L-shaped front brackets (5) overlap the fronts of the two L-shaped pull plates (23). Two L-shaped placement brackets (3) are fixedly installed at the rear of the top of the base (1). The fronts of the two L-shaped placement brackets (3) overlap the two L-shaped pull plates (23). On the back of the L-shaped pull plate (23), there are multiple tension gauges (4) inside between the two L-shaped placement racks (3). The tension ends of the multiple tension gauges (4) are fixedly installed with hooks (41). The hooks (41) are located below the two L-shaped placement racks (3). A tension sensor (6) is attached to the front of the top of the base (1). A hanging ring (61) is fixedly installed on the detection end of the top of the tension sensor (6). A notch is opened on the left side of the hanging ring (61). The hanging ring (61) is located directly in front of the hook (41).
2. The calibration device for a tensile measuring instrument according to claim 1, characterized in that: A control panel (8) is fixedly installed on the right side of the front of the fixed frame (2). A first electric telescopic rod (21) is fixedly installed in the middle of the top of the fixed frame (2). The telescopic end of the first electric telescopic rod (21) extends into the interior of the fixed frame (2) and is fixedly installed in the middle of the top of the limiting plate (22). A sliding groove (24) is provided on the upper side of both sides of the inner wall of the fixed frame (2). The two sides of the limiting plate (22) are slidably connected to the interior of the sliding groove (24). The two sides of the limiting plate (22) are located below the interior of the sliding groove (24).
3. The calibration device for a tensile measuring instrument according to claim 1, characterized in that: A fixing plate (31) is fixedly connected to the rear end of the two L-shaped placement racks (3). A second electric telescopic rod (32) is fixedly installed on the back of the fixing plate (31). The telescopic end of the second electric telescopic rod (32) extends to the rear of the interior between the two L-shaped placement racks (3) and is fixedly connected to a push plate (33).
4. The calibration device for a tensile measuring instrument according to claim 1, characterized in that: The base (1) has an installation groove (7) at the front of the top. A positioning block (73) is slidably arranged on the left side inside the installation groove (7). The top of the positioning block (73) is fixedly installed in the middle of the bottom of the tension sensor (6).
5. A calibration device for a tensile measuring instrument according to claim 4, characterized in that: A servo motor (71) is fixedly installed on the right side inside the mounting slot (7). A screw (72) is fixedly installed on the output end of the servo motor (71) through a coupling. The left end of the screw (72) is rotatably installed on the left side of the inner wall of the mounting slot (7) through a bearing.
6. A calibration device for a tensile measuring instrument according to claim 4, characterized in that: Four straight rods (74) are fixedly installed inside the mounting groove (7). The four corners of the positioning block (73) are slidably sleeved on the outer wall of the four straight rods (74). A retaining ring (75) is fixedly connected to the left side of the outer wall of the straight rod (74). The right side of the retaining ring (75) overlaps the left side of the positioning block (73).