CN102183321B - Clamping force measuring instrument and clamping force measuring method - Google Patents
Clamping force measuring instrument and clamping force measuring method Download PDFInfo
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Abstract
本发明公开了一种夹持力测量仪及夹持力测量方法，用于测量夹具的夹持力，所述夹持力测量仪包括可更换的适合不同夹具夹持的标准块、弹簧、显示夹持力大小的夹持力指示机构和产生拉力的拉力机构；所述标准块与弹簧固定连接，弹簧与夹持力指示机构固定连接，夹持力指示机构与拉力机构固定连接；夹持力指示机构的指示数值与弹簧的形变量成正比。本发明提供一种纯机械式的夹持力测量仪，运用弹簧的形变量与拉力成比例的原理，通过拉力机构产生使夹持在夹具内的标准块拉出的力，并将拉力机构产生的拉力通过弹簧的形变在指示机构中直观地指示出来，准确地对夹具的夹持力做出测量结果，适用于PCB板行业内多种夹具的保养与维护。
The invention discloses a clamping force measuring instrument and a clamping force measuring method, which are used for measuring the clamping force of a clamp. The clamping force measuring instrument includes replaceable standard blocks suitable for clamping by different clamps, springs, display The clamping force indicating mechanism of the clamping force and the pulling force mechanism generating the pulling force; the standard block is fixedly connected with the spring, the spring is fixedly connected with the clamping force indicating mechanism, and the clamping force indicating mechanism is fixedly connected with the pulling force mechanism; the clamping force The indicated value of the indicating mechanism is proportional to the deformation of the spring. The invention provides a purely mechanical clamping force measuring instrument, which utilizes the principle that the deformation of the spring is proportional to the tension, generates a force to pull out the standard block clamped in the fixture through the tension mechanism, and generates The tensile force is intuitively indicated in the indicating mechanism through the deformation of the spring, and the measurement result of the clamping force of the fixture can be accurately made, which is suitable for the maintenance and maintenance of various fixtures in the PCB board industry.
Description
技术领域 technical field
本发明涉及仪器测量领域，尤其涉及一种夹持力测量仪及夹持力测量方法。The invention relates to the field of instrument measurement, in particular to a clamping force measuring instrument and a clamping force measuring method.
背景技术 Background technique
PCB生产制造过程中，前后有多种夹具，如湿膜线的内层薄板夹具，电镀线用的电镀夹具，静电喷涂用的喷涂和烘箱专用夹具等。夹具由于产品的厚度、加工要求、使用环境的不同，每种夹具的大小、夹持力也各不相同。到目前未至，PCB夹具的夹持力测量工具一直为空缺。平时对夹持力的检验，一般为人工按压弹簧或夹一片板材，进行人工拉扯，靠经验进行夹持力的判定，结果各不相同，这对夹具的维护与定期更换，都带来很大的麻烦。In the PCB manufacturing process, there are many kinds of fixtures before and after, such as the inner thin plate fixture of the wet film line, the electroplating fixture for the electroplating line, the spraying and oven special fixture for the electrostatic spraying, etc. Due to the thickness of the product, the processing requirements and the use environment of the fixture, the size and clamping force of each fixture are also different. So far, the clamping force measurement tool for PCB fixtures has been vacant. The usual inspection of the clamping force is generally by manually pressing a spring or clamping a piece of plate, then manually pulling, and judging the clamping force based on experience. Trouble.
如果有了一个夹持力检验工具，不但可以节约夹具的维护成本，而且还可以降低人工夹持力检查的工作量；从目前几万个夹具的检查工作来看，是十分重要的。If there is a clamping force inspection tool, it can not only save the maintenance cost of the fixture, but also reduce the workload of manual clamping force inspection; judging from the current inspection work of tens of thousands of fixtures, it is very important.
中国实用新型专利号为：“ZL98245162.8”，专利名称为：“一种测量微夹力的微夹钳”的专利文件中公开了一种测量微夹力的微夹钳，其包括有：动力源、杠杆支点、杠杆动力臂、杠杆阻力臂、悬臂梁、应变片、钳体、基座、铰链、驱动电路、电桥、放大电路，它能对微夹钳的夹持力进行测量、监视、控制并感知被夹持物表面的软硬程度。该专利文件中的夹持力测量是通过电子电桥的测量方式得到微夹持力的，虽然其可以准确测量夹持力，但是电子电桥的测量需要用到多个电路进行信号处理，信号处理势必会显著增加成本。The Chinese utility model patent number is: "ZL98245162.8", and the patent title is: "A micro-clamp for measuring micro-clamping force" discloses a micro-clamping force for measuring micro-clamping force, which includes: Power source, lever fulcrum, lever power arm, lever resistance arm, cantilever beam, strain gauge, clamp body, base, hinge, drive circuit, electric bridge, amplifier circuit, which can measure the clamping force of the micro clamp, Monitor, control and sense the softness and hardness of the surface of the clamped object. The clamping force measurement in this patent document is to obtain the micro-clamping force through the measurement method of the electronic bridge. Although it can accurately measure the clamping force, the measurement of the electronic bridge needs to use multiple circuits for signal processing. Disposal is bound to add significantly to the cost.
发明内容 Contents of the invention
本发明主要解决的技术问题是提供一种夹持力测量仪及夹持力测量方法，采用纯机械式的夹持力测量方式，在显著降低成本的基础上对夹持力进行准确测量，适用于PCB板行业内多种夹具的保养与维护。The main technical problem to be solved by the present invention is to provide a clamping force measuring instrument and a clamping force measuring method, which adopts a purely mechanical clamping force measurement method to accurately measure the clamping force on the basis of significantly reducing costs, and is suitable for Maintenance and maintenance of various fixtures in the PCB board industry.
为解决上述技术问题，本发明采用的一个技术方案是：提供一种夹持力测量仪，用于测量夹具的夹持力，包括可更换的适合不同夹具夹持的标准块、弹簧、显示夹持力大小的夹持力指示机构和产生拉力的拉力机构；所述标准块与弹簧固定连接，弹簧与夹持力指示机构固定连接，夹持力指示机构与拉力机构固定连接；夹持力指示机构的指示数值与弹簧的形变量成正比。In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a clamping force measuring instrument for measuring the clamping force of a clamp, including replaceable standard blocks suitable for clamping by different clamps, springs, and display clamps. The clamping force indicating mechanism of the holding force and the pulling force mechanism generating the pulling force; the standard block is fixedly connected with the spring, the spring is fixedly connected with the clamping force indicating mechanism, and the clamping force indicating mechanism is fixedly connected with the pulling force mechanism; the clamping force indicator The indicated value of the mechanism is proportional to the deformation of the spring.
其中，所述夹持力测量仪还包括使标准块定向拔出的第一导向机构，所述第一导向机构连接于标准块与弹簧之间，所述导向机构包括与标准块固定连接的第一滑块和与容置滑块定向滑动的第一导轨。Wherein, the clamping force measuring instrument also includes a first guide mechanism for directionally pulling out the standard block, the first guide mechanism is connected between the standard block and the spring, and the guide mechanism includes a first guide mechanism fixedly connected with the standard block. A slider and a first guide rail oriented to accommodate the slider.
其中，所述夹持力测量仪还包括使标准块定向拔出的第二导向机构，所述第二导向机构连接于指示机构与拉力机构之间，所述第二导向机构包括与指示机构固定连接的第二滑块和与容置滑块定向滑动的第二导轨。Wherein, the clamping force measuring instrument also includes a second guide mechanism for directionally pulling out the standard block, the second guide mechanism is connected between the indicator mechanism and the tension mechanism, and the second guide mechanism includes a The connected second slide block and the second guide rail orientedly slide with the accommodating slide block.
其中，所述拉力机构包括旋转手柄、丝杆和主传动杆，所述旋转手柄与丝杆螺纹连接，丝杆与主传动杆连接，丝杆将旋转手柄的旋转位移转换为主传动杆的直线位移，主传动杆与弹簧固定连接。Wherein, the tension mechanism includes a rotary handle, a screw rod and a main transmission rod, the rotary handle is threadedly connected to the screw rod, the screw rod is connected to the main transmission rod, and the screw rod converts the rotational displacement of the rotary handle into a straight line of the main transmission rod. Displacement, the main transmission rod is fixedly connected with the spring.
其中，所述夹持力指示机构包括仪表盘、拉力指针、直线齿条和齿轮，所述直线齿条和主传动杆固定连接，齿轮与拉力指针固定连接，直线齿条与齿轮配合，主传动杆的直线位移通过齿轮转换为拉力指针的在仪表盘内偏转指示，所述仪表盘数值与所述弹簧形变量成正比。Wherein, the clamping force indicating mechanism includes an instrument panel, a tension pointer, a linear rack and a gear, the linear rack is fixedly connected to the main transmission rod, the gear is fixedly connected to the tension pointer, the linear rack cooperates with the gear, and the main transmission The linear displacement of the rod is converted into the deflection indication of the tension pointer in the instrument panel through the gear, and the instrument panel value is proportional to the spring deformation.
其中，所述夹持力指示机构包括拉力指针和力矩表，所述拉力指针与主传动轴固定连接，主传动轴的直线位移通过拉力指针在力矩表中移动指示，所述力矩表数值与所述弹簧形变量成正比。Wherein, the clamping force indicating mechanism includes a tension pointer and a torque gauge, the tension pointer is fixedly connected with the main transmission shaft, the linear displacement of the main transmission shaft is indicated by moving the tension pointer in the torque gauge, and the value of the torque gauge is the same as that of the torque gauge. proportional to the amount of spring deformation.
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种夹持力测量方法，包括以下步骤：In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a clamping force measurement method, comprising the following steps:
a.将适合测量夹具夹持的标准块与弹簧、夹持力指示机构及拉力机构顺序固定连接；a. Fix and connect the standard block suitable for the clamping of the measuring fixture with the spring, the clamping force indicating mechanism and the tensioning mechanism in sequence;
b.拉力机构产生拉力，拉动夹持于夹具内的标准块，弹簧产生形变，指示机构中产生指示数值；b. The tension mechanism generates tension, pulls the standard block clamped in the fixture, the spring deforms, and the indication mechanism generates an indicated value;
c.夹持于夹具内的标准块被拉力机构拉出时产生的最大拉力，记录下夹持力指示机构中的指示数值。c. The maximum pulling force generated when the standard block clamped in the fixture is pulled out by the pulling force mechanism, and record the indicated value in the clamping force indicating mechanism.
其中，在步骤c中所述的夹持力指示机构包括仪表盘、拉力指针、直线齿条和齿轮，所述直线齿条和主传动杆固定连接，齿轮与拉力指针固定连接，直线齿条与齿轮配合，主传动杆的直线位移通过齿轮转换为拉力指针的在仪表盘内偏转指示，所述仪表盘数值与所述弹簧形变量成正比。Wherein, the clamping force indicating mechanism described in step c includes an instrument panel, a pulling pointer, a linear rack and a gear, the linear rack is fixedly connected to the main transmission rod, the gear is fixedly connected to the pulling pointer, and the linear rack is connected to the main transmission rod. The gears cooperate, and the linear displacement of the main transmission rod is converted into the deflection indication of the tension pointer in the instrument panel through the gears, and the value of the instrument panel is proportional to the deformation of the spring.
其中，在步骤c中所述的夹持力指示机构包括拉力指针和力矩表，所述拉力指针与主传动轴固定连接，主传动轴的直线位移通过拉力指针在力矩表中移动指示，所述力矩表数值与所述弹簧形变量成正比。Wherein, the clamping force indication mechanism described in step c includes a tension pointer and a torque meter, the tension pointer is fixedly connected with the main transmission shaft, and the linear displacement of the main transmission shaft is indicated by moving the tension pointer in the torque meter, and the torque Table values are proportional to the amount of spring deformation.
本发明的有益效果是：区别于现有技术的夹持力测量仪采用电子电桥的测量方式得到夹持力的，结构负载且成本高的缺陷，本发明提供一种纯机械式的夹持力测量仪，运用弹簧的形变量与拉力成正比的原理，通过拉力机构产生使夹持在夹具内的标准块拉出的力，并将拉力机构产生的拉力通过弹簧的形变在指示机构中直观地指示出来，准确地对夹具的夹持力做出测量结果，适用于PCB板行业内多种夹具的保养与维护。The beneficial effects of the present invention are: different from the clamping force measuring instrument of the prior art, which adopts the electronic bridge measurement method to obtain the clamping force, has structural load and high cost defects, the present invention provides a purely mechanical clamping The force measuring instrument uses the principle that the deformation of the spring is proportional to the pulling force, generates the force to pull out the standard block clamped in the fixture through the pulling mechanism, and displays the pulling force generated by the pulling mechanism directly in the indicating mechanism through the deformation of the spring It can accurately indicate the clamping force of the fixture, and it is suitable for the maintenance and maintenance of various fixtures in the PCB board industry.
进一步地，为保证拉力机构的拉力是定向拉出，在标准块与弹簧之间设置第一导向机构。加入了第一导向机构，能够保证力能够在一条直线上传递，不会产生影响拉力的阻力存在，使得夹持力测量更加准确。Further, in order to ensure that the pulling force of the pulling mechanism is directional, a first guiding mechanism is provided between the standard block and the spring. The addition of the first guide mechanism can ensure that the force can be transmitted in a straight line, and there will be no resistance that affects the pulling force, making the measurement of the clamping force more accurate.
进一步地，由于弹簧为软性连接件，为保证拉力能够在一条直线上传递，优选地在指示机构与拉力机构之间设置第二导向机构。Further, since the spring is a flexible connecting piece, in order to ensure that the pulling force can be transmitted in a straight line, it is preferable to arrange a second guiding mechanism between the indicating mechanism and the pulling force mechanism.
附图说明 Description of drawings
图1是本发明夹持力测量仪第一实施例的结构方框图；Fig. 1 is the structural block diagram of the first embodiment of the clamping force measuring instrument of the present invention;
图2是本发明夹持力测量仪第二实施例与夹具配合的结构示意图；Fig. 2 is a structural schematic diagram of the cooperation between the second embodiment of the clamping force measuring instrument of the present invention and the clamp;
图3是本发明夹持力测量仪第三实施例与夹具配合的结构示意图；Fig. 3 is a structural schematic diagram of the cooperation between the third embodiment of the clamping force measuring instrument of the present invention and the clamp;
图4是本发明夹持力测量方法的步骤流程图。Fig. 4 is a flow chart of the steps of the clamping force measurement method of the present invention.
具体实施方式 Detailed ways
为详细说明本发明的技术内容、构造特征、所实现目的及效果，以下结合实施方式并配合附图详予说明。In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
请参阅图1，本发明的夹持力测量仪，用于测量夹具107的夹持力，包括可更换的适合不同夹具夹持的标准块101、弹簧102、显示夹持力大小的夹持力指示机构103和产生拉力的拉力机构104；所述标准块101与弹簧102固定连接，弹簧102与夹持力指示机构固定连接，夹持力指示机构与拉力机构固定连接；夹持力指示机构的指示数值与弹簧的形变量成正比。Referring to Fig. 1, the clamping force measuring instrument of the present invention is used to measure the clamping force of the
区别于现有技术的夹持力测量仪采用电子电桥的测量方式得到夹持力的，结构负载且成本高的缺陷，本发明提供一种纯机械式的夹持力测量仪，运用弹簧的形变量与拉力成正比的原理，通过拉力机构产生使夹持在夹具内的标准块拉出的力，并将拉力机构产生的拉力通过弹簧的形变在指示机构中直观地指示出来，准确地对夹具的夹持力做出测量结果，适用于PCB板行业内多种夹具的保养与维护。Different from the clamping force measuring instrument in the prior art, which adopts the electronic bridge measurement method to obtain the clamping force, has structural load and high cost defects, the present invention provides a purely mechanical clamping force measuring instrument, which uses a spring The principle that the deformation is proportional to the pulling force generates the force to pull out the standard block clamped in the fixture through the pulling mechanism, and the pulling force generated by the pulling mechanism is intuitively indicated in the indicating mechanism through the deformation of the spring, and accurately The clamping force of the fixture is used to measure the results, which is suitable for the maintenance and maintenance of various fixtures in the PCB board industry.
参见图2，在一实施例中，所述夹持力测量仪还包括使标准块定向拔出的第一导向机构105，所述第一导向机构连接于标准块与弹簧之间，所述导向机构包括与标准块固定连接的第一滑块1051和与容置滑块定向滑动的第一导轨1052。为保证拉力机构的拉力是定向拉出，在标准块与弹簧之间设置第一导向机构。加入了第一导向机构，能够保证力能够在一条直线上传递，不会产生影响拉力的阻力存在，使得夹持力测量更加准确。Referring to Fig. 2, in one embodiment, the clamping force measuring instrument also includes a
参见图3，在一实施例中，所述夹持力测量仪还包括使标准块定向拔出的第二导向机构106，所述第二导向机构连接于指示机构与拉力机构之间，所述第二导向机构包括与指示机构固定连接的第二滑块1061和与容置滑块定向滑动的第二导轨1062。由于弹簧为软性连接件，为保证拉力能够在一条直线上传递，优选地还在指示机构与拉力机构之间设置第二导向机构。Referring to Fig. 3, in one embodiment, the clamping force measuring instrument also includes a
参见图2及图3，在一实施例中，所述拉力机构104包括旋转手柄1043、丝杆1042和主传动杆1041，所述旋转手柄与丝杆螺纹连接，丝杆与主传动杆连接，丝杆将旋转手柄的旋转位移转换为主传动杆的直线位移，主传动杆与弹簧固定连接。2 and 3, in one embodiment, the
本发明中，通过设置旋转手柄丝杆和主传动杆组成的拉力机构，其目的是在将弹簧的伸长量通过螺旋位移定向可控形变，且螺旋增强拉力的结构，其直线位移具有自锁性，因此使测量的精度和平稳性更高。In the present invention, by setting the tension mechanism composed of the rotating handle screw and the main transmission rod, the purpose is to control the deformation of the elongation of the spring through the helical displacement orientation, and the helix enhances the tension structure, and its linear displacement has self-locking Therefore, the accuracy and stability of the measurement are higher.
参见图2，在一实施例中，所述夹持力指示机构103包括拉力指针1031和力矩表1032，所述拉力指针与主传动轴固定连接，主传动轴的直线位移通过拉力指针在力矩表中移动指示，所述力矩表数值与所述弹簧形变量成正比。Referring to Fig. 2, in one embodiment, the clamping
参见图3，在一实施例中，所述夹持力指示机构103包括仪表盘1033、拉力指针1034、直线齿条(未示出)和齿轮(未示出)，所述直线齿条和主传动杆固定连接，齿轮与拉力指针固定连接，直线齿条与齿轮配合，主传动杆的直线位移通过齿轮转换为拉力指针的在仪表盘内偏转指示，所述仪表盘数值与所述弹簧形变量成正比。Referring to Fig. 3, in one embodiment, the clamping
参见图4，本发明的夹持力测量方法，包括以下步骤：Referring to Fig. 4, the clamping force measuring method of the present invention comprises the following steps:
a.将适合测量夹具夹持的标准块与弹簧、夹持力指示机构及拉力机构顺序固定连接；a. Fix and connect the standard block suitable for the clamping of the measuring fixture with the spring, the clamping force indicating mechanism and the tensioning mechanism in sequence;
b.拉力机构产生拉力，拉动夹持于夹具内的标准块，弹簧产生形变，指示机构中产生指示数值；b. The tension mechanism generates tension, pulls the standard block clamped in the fixture, the spring deforms, and the indication mechanism generates an indicated value;
c.夹持于夹具内的标准块被拉力机构拉出时产生的最大拉力，记录下夹持力指示机构中的指示数值。c. The maximum pulling force generated when the standard block clamped in the fixture is pulled out by the pulling force mechanism, and record the indicated value in the clamping force indicating mechanism.
在一实施例中，在步骤c中所述的夹持力指示机构包括仪表盘、拉力指针、直线齿条和齿轮，所述直线齿条和主传动杆固定连接，齿轮与拉力指针固定连接，直线齿条与齿轮配合，主传动杆的直线位移通过齿轮转换为拉力指针的在仪表盘内偏转指示，所述仪表盘数值与所述弹簧形变量成正比。In one embodiment, the clamping force indicating mechanism described in step c includes an instrument panel, a pulling force pointer, a linear rack and a gear, the linear rack is fixedly connected to the main transmission rod, and the gear is fixedly connected to the pulling force pointer, The linear rack is matched with the gear, and the linear displacement of the main transmission rod is converted into the deflection indication of the tension pointer in the instrument panel through the gear, and the value of the instrument panel is proportional to the deformation of the spring.
在一实施例中，在步骤c中所述的夹持力指示机构包括拉力指针和力矩表，所述拉力指针与主传动轴固定连接，主传动轴的直线位移通过拉力指针在力矩表中移动指示，所述力矩表数值与所述弹簧形变量成正比。In one embodiment, the clamping force indicating mechanism described in step c includes a tension pointer and a torque meter, the tension pointer is fixedly connected to the main transmission shaft, and the linear displacement of the main transmission shaft is indicated by moving the tension pointer in the torque meter , the torque table value is proportional to the spring deformation.
本发明的工作原理是：手柄旋转-丝杆后移-拉动传动杆-拉动标准件-力传导至夹具上，夹具弹簧力与本设计工具的标准弹簧力会形成压力差，压力差再产生位移。然后经过读取位移的数据，确定夹持力的大小。本发明设计的夹持力测量，实际上就是标准弹簧力与夹具的弹簧力进行对比，输出之间的差异，以确定夹持力。The working principle of the present invention is: the handle rotates - the screw rod moves backward - pulls the transmission rod - pulls the standard part - the force is transmitted to the fixture, the spring force of the fixture and the standard spring force of the design tool will form a pressure difference, and the pressure difference will generate displacement . Then by reading the displacement data, determine the size of the clamping force. The clamping force measurement designed by the present invention is actually to compare the standard spring force with the spring force of the fixture, and output the difference to determine the clamping force.
本发明的力传导过程为：经过旋转手柄，将旋转丝杆后移，在主传动杆上产生拉力，拉力拉动弹簧、弹簧再将拉力传导至标准块，形成一个旋转力变为标准拉力的传导过程。The force conduction process of the present invention is as follows: after rotating the handle, the rotating screw rod is moved backward, a tension is generated on the main transmission rod, the tension pulls the spring, and the spring then transmits the tension to the standard block, forming a transmission in which the rotation force becomes the standard tension process.
本发明的定向引导过程为：主传动杆在联动滑块在导轨上运动，保证力能够在一条直线上传递，不会产生影响标准拉力的阻力存在。The directional guiding process of the present invention is as follows: the main transmission rod moves on the guide rail on the linkage slider to ensure that the force can be transmitted in a straight line, and there will be no resistance that affects the standard pulling force.
本发明的测量系统主要是将位移量转换为指针方向，然后再读取指针所指方向的刻度数。The measurement system of the present invention mainly converts the displacement amount into the direction of the pointer, and then reads the number of scales in the direction pointed by the pointer.
参见图3，下面以一优选的实施例来说明本发明的工作原理：旋转手柄，带动丝杆，丝杆将拉力传递主传动杆，主传动杆将力传递给拉力弹簧，然后再将拉力经过滑块，滑块再拉动标准块，标准块另一端被夹具夹住，由于夹具弹簧力的作用，需要一定的引力，才能将标准块慢慢的从夹具中拉出，拉力弹簧弹簧力与夹具弹簧拉力形成拉力差，会在仪表盘表示为指针方向。这时，传动杆的直线运动转换为指针的旋转运动，就是直线齿条与圆形齿轮配合，把齿条的直线运动转换为齿轮的圆周旋转，齿轮带动指针同步旋转。然后，再读取刻度，刻度上的数值就是夹具的夹持力。滑块和导块为上下两组，都起到引导作用，由于拉力弹簧为软连接，前后两段必须增加相应的引导机构，才能保证拉力弹簧前后两段导杆做同轴直线运动。夹持力的大小是将标准块从夹具中拉出所需要的力，拉力弹簧为一个标准件，是与夹具弹簧形成比较，如果只有刚性轴，则只有位移量，不管夹具夹持力的大小，只要有一定的位移，就可以将标准块从夹具中拉出，如果增加弹簧，夹持力大的，拉力弹簧形变就大，就会被拉伸长，如果夹持力小，拉力弹簧就会变小，所测量夹持力大小，就是与拉力弹簧形变大小的比较。Referring to Fig. 3, the working principle of the present invention is described below with a preferred embodiment: the rotating handle drives the screw mandrel, the screw mandrel transmits the pulling force to the main transmission rod, and the main transmission rod transmits the force to the tension spring, and then the pulling force passes through The slider, the slider then pulls the standard block, and the other end of the standard block is clamped by the fixture. Due to the effect of the spring force of the fixture, a certain amount of gravity is required to slowly pull the standard block out of the fixture. The spring force of the tension spring is the same as that of the fixture The spring tension forms a tension difference, which will be indicated as the direction of the pointer on the instrument panel. At this time, the linear motion of the transmission rod is converted into the rotational motion of the pointer, that is, the linear rack and the circular gear cooperate to convert the linear motion of the rack into the circular rotation of the gear, and the gear drives the pointer to rotate synchronously. Then, read the scale again, and the value on the scale is the clamping force of the fixture. The slider and the guide block are two sets of upper and lower groups, both of which play a guiding role. Since the tension spring is softly connected, corresponding guiding mechanisms must be added to the front and rear sections to ensure that the front and rear sections of the tension spring can move coaxially and linearly. The size of the clamping force is the force required to pull the standard block out of the clamp. The tension spring is a standard part, which is compared with the clamp spring. If there is only a rigid shaft, there is only displacement, regardless of the clamping force of the clamp. , as long as there is a certain displacement, the standard block can be pulled out from the fixture. If the spring is added, the tension spring will be deformed and stretched if the clamping force is large. If the clamping force is small, the tension spring will be stretched. will become smaller, and the measured clamping force is compared with the deformation of the tension spring.
本发明的应用领域有：The field of application of the present invention has:
1)PCB生产制造中板件夹持，测量夹持力大小；1) Clamp the board in PCB production and measure the clamping force;
2)电镀行业中的板件夹持，测量夹持力大小；2) Plate clamping in the electroplating industry, measuring the clamping force;
3)自动化工业机械手夹持力的测量；3) Measurement of the clamping force of automated industrial manipulators;
4)汽车制造行业中50公斤物件搬运手臂夹持力的检验。4) Inspection of the clamping force of the 50 kg object handling arm in the automobile manufacturing industry.
本发明具有以下优点：The present invention has the following advantages:
1)使夹具夹持力进行标准化测量，还可以进行数据记录与分析，解决以往夹持力无法测量的历史；1) Standardize the measurement of the clamping force of the fixture, and also perform data recording and analysis to solve the history that the clamping force could not be measured in the past;
2)作业简单，操作方便，一个人可手持操作；2) The operation is simple, the operation is convenient, and one person can hold it;
3)可在线或设备保养时作业，不影响生产；3) It can be operated online or during equipment maintenance without affecting production;
4)工具制作简单，可标准化生产；4) The tool is easy to make and can be standardized for production;
5)用途广泛，可使用于各种夹具的夹持力测量。5) It has a wide range of uses and can be used to measure the clamping force of various fixtures.
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。The above is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technologies fields, all of which are equally included in the scope of patent protection of the present invention.
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| CN103063254A (en) * | 2012-12-31 | 2013-04-24 | 苏州工业职业技术学院 | Measuring apparatus of displacements and pressures |
| WO2018036443A1 (en) * | 2016-08-26 | 2018-03-01 | 陈胜辉 | Material grabbing method, apparatus and system, and dynamometry apparatus and material case |
| CN108020364B (en) * | 2017-11-30 | 2023-09-08 | 中国兵器工业集团航空弹药研究院有限公司 | Double-wall cross-bending special-shaped spring clamp clamping force testing device |
| CN108608259B (en) * | 2018-03-20 | 2020-09-18 | 南京理工大学 | System and method for measuring supporting clamping force of hard dry type cutting machine tool of lead screw |
| CN109141840B (en) * | 2018-07-18 | 2020-05-26 | 王付华 | Wedge-shaped locking device test bed |
| CN111693193A (en) * | 2019-03-13 | 2020-09-22 | 上海汽车集团股份有限公司 | Automobile door buffer block pressing force detection device and detection method |
| CN111751095A (en) * | 2020-06-24 | 2020-10-09 | 中国航空工业标准件制造有限责任公司 | Rivet class product pretightning force detects frock |
| CN114088360B (en) * | 2020-08-25 | 2024-02-27 | 宁波舜宇光电信息有限公司 | Motor detection method, motor and lens assembly method and clamping device |
| CN112858957A (en) * | 2021-01-25 | 2021-05-28 | 中车青岛四方机车车辆股份有限公司 | Electric connector female pin and male pin plugging stability testing device |
| CN114705543B (en) * | 2022-03-22 | 2022-10-18 | 杭州中祥通讯器材有限公司 | Non-metal pipe wear resistance detection system and detection method |
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| US3879996A (en) * | 1973-10-04 | 1975-04-29 | Snap On Tools Corp | Meter translation devices for torque measuring wrenches and the like |
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