Plate spring clamping device and plate spring rigidity detection equipment

Abstract

The invention relates to the technical field of detection equipment, and provides a plate spring clamping device and plate spring rigidity detection equipment. The fixed positioning assembly is connected to the base plate, the fixed positioning assembly comprises a first bottom plate, a first pressing plate, a first fastening piece and a first positioning column, and the first fastening piece is used for adjusting a gap between the first pressing plate and the first bottom plate so as to clamp one end of a to-be-tested plate spring; the movable positioning assembly can move towards or away from the fixed positioning assembly along the base plate, the movable positioning assembly comprises a second bottom plate, a second pressing plate, a second fastening piece and a second positioning column, the second fastening piece is arranged on the second pressing plate and the second bottom plate in a penetrating mode, and the second positioning column is arranged on the second pressing plate. The second fastener is used for adjusting the gap between the second pressing plate and the second bottom plate so as to clamp the other end of the to-be-tested plate spring. The second positioning column and the first positioning column abut against the two opposite ends of the to-be-tested plate spring so as to position the to-be-tested plate spring.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and in particular provides a leaf spring clamping device and a leaf spring stiffness detection device. Background Art

[0002] Micro-sized elastic parts are widely used in elastic-flexible precision assembly, which not only have high dimensional accuracy and positional accuracy requirements, but also have certain requirements on stiffness.

[0003] Leaf springs are a common form of micro-sized elastic parts. In related technologies, the two ends of a leaf spring are usually fixed, and the leaf spring is simplified into a simply supported beam. The stiffness value of the leaf spring is obtained by solving the mechanical model of the simply supported beam. During the parts replacement process, the multiple fastening screws on the leaf spring clamping plate need to be repeatedly disassembled and fixed. The process is cumbersome, resulting in low efficiency in leaf spring stiffness detection. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a leaf spring clamping device and a leaf spring stiffness detection device to solve the technical problem in the prior art that when detecting the stiffness of a leaf spring, multiple fastening screws on the leaf spring clamping plate need to be repeatedly disassembled and fixed during the parts replacement process, and the process is cumbersome, resulting in low efficiency in leaf spring stiffness detection.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a leaf spring clamping device, comprising:

[0006] substrate;

[0007] A fixed positioning assembly, the fixed positioning assembly is connected to the base plate, and the fixed positioning assembly includes a first base plate, a first pressing plate, a first fastener, and a first positioning column, wherein the first fastener is inserted through the first pressing plate and the first base plate, and the first fastener is used to adjust the gap between the first pressing plate and the first base plate to clamp one end of the leaf spring to be tested;

[0008] A movable positioning assembly, the movable positioning assembly can move along the base plate toward or away from the fixed positioning assembly, the movable positioning assembly includes a second base plate, a second pressure plate, a second fastener and a second positioning column, wherein the second fastener is passed through the second pressure plate and the second base plate, the second fastener is used to adjust the gap between the second pressure plate and the second base plate to clamp the other end of the leaf spring to be tested, and the second positioning column and the first positioning column are respectively abutted against the opposite ends of the leaf spring to be tested to position the leaf spring to be tested.

[0009] The leaf spring clamping device provided in the embodiment of the present application has a first positioning column and a second positioning column for positioning the two ends of the leaf spring to be tested respectively, thereby effectively maintaining the stability of the leaf spring to be tested during the clamping process. At the same time, there is no need to repeatedly adjust the clamping pressure plate, and the leaf spring to be tested can be quickly positioned; the movable positioning component can be moved along the base plate, so that the adjustment during the clamping process can be faster and more accurate, and the tedious steps that require frequent disassembly and assembly can be avoided, thereby improving the clamping efficiency of the leaf spring to be tested; in addition, by adjusting the position of the movable positioning component relative to the fixed positioning component, it can adapt to leaf springs to be tested of different lengths or widths, which helps to improve the versatility and flexibility of the leaf spring clamping device, and is suitable for stiffness detection of leaf springs to be tested of various specifications.

[0010] In some embodiments, the fixed positioning assembly also includes a first pin and a first limiting ring mounted on the first pin. The surface of the first pressure plate facing the first base plate is provided with a first waist-shaped groove adapted to the first pin. The first pin is inserted in the first waist-shaped groove and can move along the inner wall of the first waist-shaped groove. The first limiting ring is arranged between the first pressure plate and the first base plate.

[0011] By adopting the above-mentioned technical scheme, during the disassembly process of the leaf spring, the first waist-shaped groove in the first pressure plate and the first limiting ring on the first pin can be used to achieve non-moving sliding between the first pressure plate and the first bottom plate. The first pin cooperates in the first waist-shaped groove to ensure that the first pressure plate slides along a straight line. In this way, the disassembly method of the first pressure plate is changed from the original vertical disassembly to horizontal sliding disassembly, which can save the disassembly time of the first pressure plate and help improve the efficiency of leaf spring stiffness detection.

[0012] In some embodiments, the fixed positioning assembly further includes a first elastic member, which is sleeved on the first pin, and one end of the first elastic member abuts against the first pin, and the other end of the first elastic member abuts against the first limiting ring.

[0013] By adopting the above technical solution, the assembly relationship of the first pin and the first elastic member makes it convenient for the first pressure plate to quickly bounce upward to leave clamping space when the first pressure plate is disassembled, which helps to improve clamping efficiency, making clamping easier and fixing faster.

[0014] In some embodiments, the movable positioning assembly further includes a guide rail and a movable end slidably connected to the guide rail, the guide rail is fixedly connected to the base plate, and the second base plate is connected to the movable end.

[0015] By adopting the above technical solution, when downward pressure is applied to the leaf spring to produce elastic deformation, the movable end moves along the guide rail, and the follow-up movement of the movable end ensures that the leaf spring will not undergo plastic deformation; the setting of the guide rail enables the movable positioning assembly to move smoothly on the base plate, and the adjustment is smoother, thereby simplifying the clamping process of the leaf spring.

[0016] In some embodiments, the movable positioning assembly also includes a second pin and a second limiting ring mounted on the second pin. The surface of the second pressure plate facing the second base plate is provided with a second waist-shaped groove adapted to the second pin. The second pin is inserted into the second waist-shaped groove and can move along the inner wall of the second waist-shaped groove. The second limiting ring is arranged between the second pressure plate and the second base plate.

[0017] By adopting the above-mentioned technical scheme, during the disassembly process of the leaf spring, the second waist-shaped groove in the second pressure plate and the second limiting ring on the second pin can be used to achieve non-movement sliding between the second pressure plate and the second bottom plate. The second pin cooperates in the second waist-shaped groove to ensure that the second pressure plate slides along a straight line. In this way, the disassembly method of the second pressure plate is changed from the original vertical disassembly to horizontal sliding disassembly, which can save the disassembly time of the second pressure plate and help improve the efficiency of leaf spring stiffness detection.

[0018] In some embodiments, the movable positioning assembly further includes a second elastic member, which is sleeved on the second pin, and one end of the second elastic member abuts against the second pin, and the other end of the second elastic member abuts against the second limiting ring.

[0019] By adopting the above technical solution, the assembly relationship of the second pin and the second spring makes it convenient for the second pressure plate to quickly bounce upward to leave clamping space when the second pressure plate is disassembled, which helps to improve clamping efficiency, making clamping easier and fixing faster.

[0020] In some embodiments, the leaf spring clamping device further includes a positioning and adjusting assembly, wherein the fixed positioning assembly and the movable positioning assembly are disposed on one side of the substrate, and the positioning and adjusting assembly is disposed on the other side of the substrate.

[0021] By adopting the above technical scheme, the cooperation of the fixed positioning component and the movable positioning component can realize the reliable clamping and fixing of the leaf spring, which helps to realize the rapid clamping of the leaf spring; the positioning adjustment component can adjust the position of the leaf spring, which helps to improve the positioning accuracy of the leaf spring clamping device.

[0022] In some embodiments, the positioning adjustment assembly includes a positioning reference block, a micrometer telescopic rod, a micrometer support and a locking screw, the micrometer support and the locking screw are connected to the positioning reference block, and the micrometer telescopic rod is connected to the micrometer support.

[0023] The adoption of the above technical solution helps to further improve the positioning accuracy of the leaf spring clamping device.

[0024] In some embodiments, the leaf spring clamping device further includes a first support member and a second support member, the first support member is disposed between the first base plate and the first pressure plate, and the second support member is disposed between the second base plate and the second pressure plate.

[0025] By adopting the above technical solution, the first support member can ensure the gap between the first base plate and the first pressure plate, and the second support member can ensure the gap between the second base plate and the second pressure plate, thereby avoiding deformation of the leaf spring to be tested due to too small a gap, thereby affecting the stiffness measurement of the leaf spring to be tested.

[0026] The present application also provides a leaf spring stiffness detection device, including a probe and the above-mentioned leaf spring clamping device.

[0027] The leaf spring stiffness detection equipment provided by the present application has a first positioning column and a second positioning column for positioning the two ends of the leaf spring to be tested respectively, thereby effectively maintaining the stability of the leaf spring to be tested during the clamping process, and at the same time, there is no need to repeatedly adjust the clamping pressure plate, so that the leaf spring to be tested can be quickly positioned; the movable positioning component can move along the base plate, so that the adjustment during the clamping process can be faster and more accurate, and the tedious steps that require frequent disassembly and assembly can be avoided, thereby improving the clamping efficiency of the leaf spring to be tested; in addition, by adjusting the position of the movable positioning component relative to the fixed positioning component, it can adapt to leaf springs to be tested of different lengths or widths, which helps to improve the versatility and flexibility of the leaf spring clamping device, and is suitable for stiffness detection of leaf springs to be tested of various specifications.

[0028] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of a leaf spring clamping device provided in one embodiment of the present application;

[0031] Figure 2 is a structural schematic diagram of a fixed positioning assembly provided in one embodiment of the present application;

[0032] Figure 3 is a structural diagram of an active positioning assembly provided in one embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of the connection between the movable end and the guide rail provided in one embodiment of the present application;

[0034] Figure 5It is a structural schematic diagram of a positioning adjustment component provided in one embodiment of the present application.

[0035] Among them, the figure marks in the figure are: 100. leaf spring clamping device; 10. base plate; 20. fixed positioning assembly; 21. first bottom plate; 22. first pressure plate; 221. first waist-shaped groove; 222. first positioning groove; 23. first fastener; 24. first positioning column; 25. first pin; 26. first limiting ring; 27. first elastic member; 30. movable positioning assembly; 31. second bottom plate; 32. second pressure plate; 33. second fastener; 34. second positioning column; 35. second pin; 36. second limiting ring; 37. second elastic member; 38. guide rail. 39. movable end; 391. ball; 40. positioning adjustment assembly; 41. positioning reference block; 42. micrometer telescopic rod; 43. micrometer support; 44. locking screw; 50. first support; 60. second support; 200. probe; 300. leaf spring to be measured. DETAILED DESCRIPTION

[0036] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0037] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] See also Figure 1 The embodiment of the present application provides a leaf spring clamping device 100 , including a base plate 10 , a fixed positioning component 20 , and a movable positioning component 30 .

[0041] The substrate 10 is a structure such as a base, a base, etc. The substrate 10 is a mounting platform for other components.

[0042] like Figure 1 and Figure 2 As shown, the fixing and positioning assembly 20 is fixedly connected to the base plate 10. The fixing and positioning assembly 20 includes a first bottom plate 21, a first pressing plate 22, a first fastener 23 and a first positioning column 24.

[0043] The first bottom plate 21 is a plate-shaped, table-shaped or other structure having a certain thickness and rigidity.

[0044] The first pressing plate 22 is a plate-shaped, table-shaped or other structure having a certain thickness and rigidity.

[0045] The first pressure plate 22 is pressed against the first bottom plate 21, and the leaf spring 300 to be tested is located between the first bottom plate 21 and the first pressure plate 22. One side of the leaf spring 300 to be tested contacts the first bottom plate 21, and the other side of the leaf spring 300 to be tested contacts the first pressure plate 22. The first bottom plate 21 supports the leaf spring 300 to be tested from bottom to top, and the first pressure plate 22 presses the leaf spring 300 to be tested from bottom to top.

[0046] The first positioning column 24 is in a columnar or rod-shaped structure. The number of the first positioning column 24 can be one or more.

[0047] The first positioning column 24 is arranged between the first bottom plate 21 and the first pressure plate 22. The first bottom plate 21 is provided with a first positioning hole for accommodating the first positioning column 24. The first pressure plate 22 is provided with a first positioning groove 222 adapted to the first positioning column 24. One end of the first positioning column 24 is inserted into the first positioning hole, and the other end of the first positioning column 24 is inserted into the first positioning groove 222.

[0048] The first fastener 23 may be a bolt, a fastening screw, etc. The first fastener 23 is disposed through the first pressing plate 22 and the first bottom plate 21 and is used to adjust the gap between the first pressing plate 22 and the first bottom plate 21 to clamp one end of the leaf spring 300 to be tested.

[0049] like Figure 1 and Figure 3 As shown, the movable positioning assembly 30 can move along the base plate toward or away from the fixed positioning assembly 20 , and the movable positioning assembly 30 includes a second bottom plate 31 , a second pressing plate 32 , a second fastener 33 and a second positioning column 34 .

[0050] The movable positioning assembly 30 can be movably connected to the base plate through a movable track. The movable positioning assembly 30 is arranged opposite to the fixed positioning assembly 20 to fix the leaf spring 300 to be tested from both ends respectively.

[0051] The second bottom plate 31 is a plate-shaped, table-shaped or other structure having a certain thickness and rigidity.

[0052] The second pressing plate 32 is a plate-shaped, table-shaped or other structure having a certain thickness and rigidity.

[0053] The second pressure plate 32 is pressed on the second bottom plate 31, and the leaf spring 300 to be tested is located between the second bottom plate 31 and the second pressure plate 32. One side of the leaf spring 300 to be tested contacts the second bottom plate 31, and the other side of the leaf spring 300 to be tested contacts the second pressure plate 32. The second bottom plate 31 supports the leaf spring 300 to be tested from bottom to top, and the second pressure plate 32 presses the leaf spring 300 to be tested from bottom to top.

[0054] The second positioning column 34 is in a columnar or rod-shaped structure. The number of the second positioning column 34 can be one or more.

[0055] The second positioning column 34 is arranged between the second base plate 31 and the second pressure plate 32. The second base plate 31 is provided with a second positioning hole for accommodating the second positioning column 34. The second pressure plate 32 is provided with a second positioning groove 322 adapted to the second positioning column 34. One end of the second positioning column 34 is inserted into the second positioning hole, and the other end of the second positioning column 34 is inserted into the second positioning groove 322.

[0056] The second fastener 33 can be a bolt, a fastening screw, etc. The second fastener 33 is inserted through the second pressing plate 32 and the second bottom plate 31 and is used to adjust the gap between the second pressing plate 32 and the second bottom plate 31 to clamp one end of the leaf spring 300 to be tested.

[0057] The second positioning post 34 and the first positioning post 24 are respectively abutted against two opposite ends of the leaf spring 300 to be tested so as to position the leaf spring 300 to be tested.

[0058] The clamping device for the leaf spring 300 to be tested provided in the embodiment of the present application has a first positioning column 24 and a second positioning column 34 for positioning the two ends of the leaf spring 300 to be tested, respectively, thereby effectively maintaining the stability of the leaf spring 300 to be tested during the clamping process. At the same time, there is no need to repeatedly adjust the clamping pressure plate, and the leaf spring 300 to be tested can be quickly positioned; the movable positioning component 30 can be moved along the base plate, so that the adjustment during the clamping process can be faster and more accurate, and the cumbersome steps that require frequent disassembly and assembly can be avoided, thereby improving the clamping efficiency of the leaf spring 300 to be tested; in addition, by adjusting the position of the movable positioning component 30 relative to the fixed positioning component 20, it can adapt to leaf springs 300 to be tested of different lengths or widths, which helps to improve the versatility and flexibility of the clamping device for the leaf spring 300 to be tested, and is suitable for stiffness detection of leaf springs 300 to be tested of various specifications.

[0059] like Figure 2 As shown, in some embodiments, the fixed positioning assembly 20 also includes a first pin 25 and a first limiting ring 26 mounted on the first pin 25. The surface of the first pressure plate 22 facing the first bottom plate 21 is provided with a first waist-shaped groove 221 matched with the first pin 25. The first pin 25 is inserted in the first waist-shaped groove 221 and can move along the inner wall of the first waist-shaped groove 221. The first limiting ring 26 is arranged between the first pressure plate 22 and the first bottom plate 21.

[0060] The number of the first pins 25 can be one or more, and the number of the first limiting rings 26 is the same as the number of the first pins 25 .

[0061] The first limiting ring 26 is matched with the first pin 25. The first waist-shaped groove 221 is matched with the first pin 25, and the first pin 25 can move along the groove wall of the first waist-shaped groove 221, that is, the first pin 25 can move horizontally and linearly along the extension direction of the first waist-shaped groove 221.

[0062] With the cooperation of the first pin 25 , the first limiting ring 26 and the first waist-shaped groove 221 , when the leaf spring 300 to be tested is disassembled, the first pressing plate 22 and the first bottom plate 21 slide without movement.

[0063] By adopting the above-mentioned technical scheme, during the disassembly process of the leaf spring 300 to be tested, the first waist-shaped groove 221 in the first pressure plate 22 and the first limit ring 26 on the first pin 25 can be used to achieve non-moving sliding between the first pressure plate 22 and the first bottom plate 21. The first pin 25 cooperates in the first waist-shaped groove 221 to ensure that the first pressure plate 22 slides along a straight line. In this way, the disassembly method of the first pressure plate 22 is changed from the original vertical disassembly to horizontal sliding disassembly, which can save the disassembly time of the first pressure plate 22 and help improve the efficiency of the stiffness detection of the leaf spring 300 to be tested.

[0064] like Figure 2As shown, in some embodiments, the fixed positioning assembly 20 also includes a first elastic member 27, which is sleeved on the first pin 25, and one end of the first elastic member 27 abuts against the first pin 25, and the other end of the first elastic member 27 abuts against the first limiting ring 26.

[0065] The first elastic member 27 may be a structure with a certain elasticity, such as a spring, elastic rubber, elastic diaphragm, etc.

[0066] One end of the first elastic member 27 abuts against the first pin 25, and the other end of the first elastic member 27 abuts against the first limiting ring 26. During the stiffness measurement, the first elastic member 27 is in a compressed state, and when the first pressing plate 22 is disassembled, the elastic potential energy of the first elastic member 27 is released, driving the limiting ring to move upward, and the limiting ring abuts against the first pressing plate 22, thereby driving the first pressing plate 22 to bounce upward.

[0067] By adopting the above technical solution, the assembly relationship of the first pin 25 combined with the first elastic member 27 makes it convenient for the first pressure plate 22 to quickly bounce upward to leave clamping space when the first pressure plate 22 is disassembled, which helps to improve the clamping efficiency, making clamping easier and fixing faster.

[0068] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the movable positioning assembly 30 further includes a guide rail 38 and a movable end 39 slidably connected to the guide rail 38 , the guide rail 38 is fixedly connected to the base plate, and the second base plate 31 is connected to the movable end 39 .

[0069] The guide rail 38 is a V-shaped guide rail.

[0070] The movable end 39 is slidably connected to the guide rail 38 .

[0071] Optionally, a ball 391 is embedded between the guide rail 38 and the movable end 39 to reduce the measurement error caused by friction.

[0072] By adopting the above technical solution, when downward pressure is applied to the leaf spring 300 to produce elastic deformation, the movable end 39 moves along the guide rail 38, and the follow-up movement of the movable end 39 ensures that the leaf spring 300 to be tested will not undergo plastic deformation; the setting of the guide rail 38 enables the movable positioning assembly 30 to move smoothly on the substrate, and the adjustment is smoother, thereby simplifying the clamping process of the leaf spring 300 to be tested.

[0073] like Figure 1 and Figure 3As shown, in some embodiments, the movable positioning assembly 30 also includes a second pin 35 and a second limiting ring 36 sleeved on the second pin 35, the second pressure plate 32 is provided with a second waist-shaped groove 321 adapted to the second pin 35 on the surface facing the second bottom plate 31, the second pin 35 is inserted in the second waist-shaped groove 321 and can move along the inner wall of the second waist-shaped groove 321, and the second limiting ring 36 is arranged between the second pressure plate 32 and the second bottom plate 31.

[0074] The second limiting ring 36 is matched with the second pin 35. The second kidney-shaped groove 321 is matched with the second pin 35, and the second pin 35 can move along the groove wall of the second kidney-shaped groove 321, that is, the second pin 35 can move horizontally and linearly along the extension direction of the second kidney-shaped groove 321.

[0075] With the cooperation of the second pin 35 , the second limiting ring 36 and the second waist-shaped groove 321 , when the leaf spring 300 to be tested is disassembled, the second pressing plate 32 and the second bottom plate 31 slide without movement.

[0076] By adopting the above-mentioned technical scheme, during the disassembly process of the leaf spring 300 to be tested, the second waist-shaped groove 321 in the second pressure plate 32 and the second limiting ring 36 on the second pin 35 can be used to achieve non-moving sliding between the second pressure plate 32 and the second bottom plate 31. The second pin 35 cooperates in the second waist-shaped groove 321 to ensure that the second pressure plate 32 slides along a straight line. In this way, the disassembly method of the second pressure plate 32 is changed from the original vertical disassembly to horizontal sliding disassembly, which can save the disassembly time of the second pressure plate 32 and help improve the efficiency of the stiffness detection of the leaf spring 300 to be tested.

[0077] like Figure 1 and Figure 3 As shown, in some embodiments, the movable positioning assembly 30 also includes a second elastic member 37, which is sleeved on the second pin 35, and one end of the second elastic member 37 abuts against the second pin 35, and the other end of the second elastic member 37 abuts against the second limiting ring 36.

[0078] The second elastic member 37 may be a structure with a certain elasticity, such as a spring, elastic rubber, elastic diaphragm, etc.

[0079] One end of the second elastic member 37 abuts against the second pin 35, and the other end of the second elastic member 37 abuts against the second limiting ring 36. During the stiffness measurement, the second elastic member 37 is in a compressed state, and when the second pressing plate 32 is disassembled, the elastic potential energy of the second elastic member 37 is released, driving the limiting ring to move upward, and the limiting ring abuts against the second pressing plate 32, thereby driving the second pressing plate 32 to bounce upward.

[0080] By adopting the above technical solution, the assembly relationship of the second pin 35 combined with the second spring makes it convenient for the second pressure plate 32 to quickly bounce upward to leave clamping space when the second pressure plate 32 is disassembled, which helps to improve clamping efficiency, making clamping easier and fixing faster.

[0081] like Figure 1 and Figure 5 As shown, in some embodiments, the clamping device for the leaf spring 300 to be tested further includes a positioning and adjusting assembly 40, the fixed positioning assembly 20 and the movable positioning assembly 30 are arranged on one side of the substrate, and the positioning and adjusting assembly 40 is arranged on the other side of the substrate.

[0082] The positioning adjustment assembly 40 is used to make fine adjustments to the clamping and positioning of the leaf spring 300 to be tested.

[0083] By adopting the above-mentioned technical scheme, the cooperation of the fixed positioning component 20 and the movable positioning component 30 can realize the reliable clamping and fixing of the leaf spring 300 to be tested, which helps to realize the rapid clamping of the leaf spring 300 to be tested; the positioning adjustment component 40 can adjust the position of the leaf spring 300 to be tested, which helps to improve the positioning accuracy of the clamping device of the leaf spring 300 to be tested.

[0084] like Figure 1 and Figure 5 As shown, in some embodiments, the positioning adjustment assembly 40 includes a positioning reference block 41, a micrometer telescopic rod 42, a micrometer support 43 and a locking screw 44, the micrometer support 43 and the locking screw 44 are connected to the positioning reference block 41, and the micrometer telescopic rod 42 is connected to the micrometer support 43.

[0085] The adoption of the above technical solution is helpful to further improve the positioning accuracy of the clamping device of the leaf spring 300 to be tested.

[0086] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the clamping device of the leaf spring 300 to be tested further includes a first support member 50 and a second support member 60 . The first support member 50 is disposed between the first base plate 21 and the first pressure plate 22 , and the second support member 60 is disposed between the second base plate 31 and the second pressure plate 32 .

[0087] The first support member 50 is a plate-shaped or sheet-shaped structure with a certain thickness and rigidity. The first support member 50 can ensure the gap between the first bottom plate 21 and the first pressing plate 22 to prevent the gap between the first bottom plate 21 and the first pressing plate 22 from being too small, resulting in plastic deformation of the leaf spring 300 to be tested.

[0088] The second support member 60 is a plate-shaped or sheet-shaped structure with a certain thickness and rigidity. The second support member 60 can ensure the gap between the second bottom plate 31 and the second pressing plate 32 to prevent the gap between the second bottom plate 31 and the second pressing plate 32 from being too small, resulting in plastic deformation of the leaf spring 300 to be tested.

[0089] By adopting the above technical solution, the first support member 50 can ensure the gap between the first base plate 21 and the first pressure plate 22, and the second support member 60 can ensure the gap between the second base plate 31 and the second pressure plate 32, thereby preventing the gap from being too small and causing the leaf spring 300 to be deformed, thereby affecting the stiffness measurement of the leaf spring 300 to be measured.

[0090] The present application also provides a stiffness detection device for a leaf spring 300 to be tested, comprising a probe 200 and the above-mentioned clamping device for the leaf spring 300 to be tested.

[0091] One end of the probe 200 is flat, and this end is used to press the leaf spring 300 to be tested downward. The flat shape can make the force application effect more uniform, and can avoid crushing and deformation of the thin leaf spring during the measurement process. The leaf spring 300 to be tested can be provided with a groove, and the flat shape of the probe 200 is adapted to the structure of the groove.

[0092] The other end of the probe 200 is connected to a sensor for measuring the pressure and displacement of the probe 200. The segmented design is adopted at the connection between the probe 200 and the sensor, which can realize the 360-degree free rotation and locking of the probe 200, and facilitate the rapid alignment of the measured beam of the leaf spring. The special-shaped probe 200 cooperates with the positioning leaf spring to accurately find the position of the loading point.

[0093] The stiffness detection device for the leaf spring 300 to be tested provided by the present application, the first positioning column 24 and the second positioning column 34 respectively position the two ends of the leaf spring 300 to be tested, effectively maintaining the stability of the leaf spring 300 to be tested during the clamping process, and at the same time, there is no need to repeatedly adjust the clamping pressure plate, so that the leaf spring 300 to be tested can be quickly positioned; the movable positioning component 30 can be moved along the base plate, so that the adjustment during the clamping process can be faster and more accurate, and the cumbersome steps that require frequent disassembly and assembly can be avoided, thereby improving the clamping efficiency of the leaf spring 300 to be tested; in addition, by adjusting the position of the movable positioning component 30 relative to the fixed positioning component 20, it can adapt to the leaf spring 300 to be tested of different lengths or widths, which helps to improve the versatility and flexibility of the clamping device of the leaf spring 300 to be tested, and is suitable for stiffness detection of leaf springs 300 to be tested of various specifications.

[0094] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A leaf spring clamping device, characterized in that: The leaf spring clamping device comprises: substrate; A fixed positioning assembly, the fixed positioning assembly is connected to the base plate, the fixed positioning assembly comprises a first base plate, a first pressing plate, a first fastener and a first positioning column, wherein the first fastener is provided through the first pressing plate and the first base plate, and the first fastener is used to adjust the gap between the first pressing plate and the first base plate to clamp one end of the leaf spring to be tested; A movable positioning assembly, wherein the movable positioning assembly can move along the substrate toward or away from the fixed positioning assembly, and the movable positioning assembly includes a second base plate, a second pressure plate, a second fastener and a second positioning column, wherein the second fastener is passed through the second pressure plate and the second base plate, and the second fastener is used to adjust the gap between the second pressure plate and the second base plate to clamp the other end of the leaf spring to be tested, and the second positioning column and the first positioning column are respectively abutted against the opposite ends of the leaf spring to be tested to position the leaf spring to be tested.

2. The leaf spring clamping device according to claim 1, characterized in that: The fixed positioning assembly also includes a first pin and a first limiting ring mounted on the first pin. The surface of the first pressure plate facing the first base plate is provided with a first waist-shaped groove matched with the first pin. The first pin is inserted in the first waist-shaped groove and can move along the inner wall of the first waist-shaped groove. The first limiting ring is arranged between the first pressure plate and the first base plate.

3. The leaf spring clamping device according to claim 2, characterized in that: The fixing and positioning assembly further includes a first elastic member, which is sleeved on the first pin, and one end of the first elastic member abuts against the first pin, and the other end of the first elastic member abuts against the first limiting ring.

4. The leaf spring clamping device according to claim 2, characterized in that: The movable positioning assembly also includes a guide rail and a movable end slidably connected to the guide rail, the guide rail is fixedly connected to the base plate, and the second base plate is connected to the movable end.

5. The leaf spring clamping device according to claim 4, characterized in that: The movable positioning assembly also includes a second pin and a second limiting ring mounted on the second pin. The surface of the second pressure plate facing the second base plate is provided with a second waist-shaped groove matched with the second pin. The second pin is inserted in the second waist-shaped groove and can move along the inner wall of the second waist-shaped groove. The second limiting ring is arranged between the second pressure plate and the second base plate.

6. The leaf spring clamping device according to claim 5, characterized in that: The movable positioning assembly also includes a second elastic member, which is sleeved on the second pin, and one end of the second elastic member abuts against the second pin, and the other end of the second elastic member abuts against the second limiting ring.

7. The leaf spring clamping device according to any one of claims 1 to 6, characterized in that: The leaf spring clamping device also includes a positioning and adjusting component. The fixed positioning component and the movable positioning component are arranged on one side of the base plate, and the positioning and adjusting component is arranged on the other side of the base plate.

8. The leaf spring clamping device according to claim 7, characterized in that: The positioning adjustment assembly comprises a positioning reference block, a micrometer telescopic rod, a micrometer support and a locking screw. The micrometer support and the locking screw are connected to the positioning reference block, and the micrometer telescopic rod is connected to the micrometer support.

9. The leaf spring clamping device according to claim 7, characterized in that: The leaf spring clamping device further includes a first support member and a second support member, wherein the first support member is disposed between the first bottom plate and the first pressing plate, and the second support member is disposed between the second bottom plate and the second pressing plate.

10. A leaf spring stiffness detection device, comprising a probe, characterized in that: It also includes a leaf spring clamping device as described in any one of claims 1-9.

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