Nut hardness detection device

Abstract

The invention provides a nut hardness detection device, and belongs to the technical field of nut hardness detection. Comprising a rack; the detection assembly is arranged on the rack and is configured to perform hardness detection on a nut to be detected; the bearing assembly is arranged on the rack and located below the detection assembly; the bearing assembly comprises a bearing platform for bearing a plurality of nuts to be tested; the adjusting assembly is arranged on the bearing platform; the adjusting assembly comprises a plurality of sliding pieces, and each sliding piece can slide in the radial direction of the bearing platform. The sliding part is configured to drive the nuts to be tested to move synchronously along the corresponding sliding displacement paths, so that the multiple nuts to be tested abut against one another, and finally stable arrangement with balanced stress is formed in the center area. By means of the adjusting assembly, self-adaptive arrangement of the multiple nuts to be detected before detection can be achieved, it is ensured that each nut to be detected is subjected to uniform force in the hardness detection process, and therefore the detection precision is improved.

Description

Technical Field

[0001] The invention relates to a nut hardness detection device, belonging to the technical field of nut hardness detection, and in particular to a hardness detection device capable of preventing a plurality of nuts to be detected from being separated due to force when being detected simultaneously. Background Art

[0002] In modern machinery, automobiles, construction and other fields, nuts are important fastening components, and their quality directly affects the stability and safety of the connection. The hardness of a nut is one of the important indicators of its mechanical properties, and its strength, wear resistance and other characteristics are usually evaluated through hardness testing. Hardness testing usually uses the indentation method, using a hardness tester to measure the compressive resistance of the nut material by applying a certain pressure or force.

[0003] At present, nut hardness testing is widely used in nut production and quality control. Traditional hardness testing methods are mostly manual hardness testers or automated hardness testers. These devices apply pressure to make the indenter of the hardness tester contact the surface of the nut to be tested, thereby forming an indentation on the nut surface, and the hardness value is calculated by the depth or diameter of the indentation. For nuts in mass production, automated hardness testing equipment has become the mainstream, which can improve the efficiency and accuracy of testing.

[0004] However, existing hardness testing equipment still has certain limitations, the most prominent of which is that only one nut can be tested in a single test operation. Limited by the shape of the nut, the clamping method and the force conditions, the equipment faces many difficulties in realizing the simultaneous testing of multiple nuts. When trying to test multiple nuts at the same time, the test accuracy and stability are difficult to guarantee, which not only reduces the test efficiency, but also brings inconvenience to the quality control link. Summary of the invention

[0005] Based on this, it is necessary to provide a nut hardness detection device to address the problem of nut detachment in current hardness detection devices.

[0006] The above purpose is achieved through the following technical solutions: A nut hardness detection device, comprising: frame; A detection assembly, disposed on the frame, configured to perform hardness detection on the nut to be tested; A bearing assembly is arranged on the frame and is located below the detection assembly; Wherein, the bearing assembly comprises a bearing platform for bearing a plurality of nuts to be tested; An adjustment component, arranged on the carrying platform; Wherein, the adjustment assembly includes a plurality of sliding members, each of which can slide radially along the carrying platform; The sliding paths of the plurality of sliding members extend from the periphery to the center of the bearing platform and are distributed radially and symmetrically; The sliding member is configured to drive the nuts to be tested to move synchronously along the corresponding sliding displacement paths, so that the multiple nuts to be tested abut against each other and finally form a stable arrangement with balanced force in the central area.

[0007] Preferably, the adjustment component comprises: A driving unit, arranged inside the carrying platform; An engaging member, wherein the engaging members are multiple and each of the engaging members corresponds to one of the sliding members; Wherein, one end of the engagement member is connected to the sliding member, and the other end extends toward the driving portion and forms an engagement connection with the driving portion; Wherein, the plurality of engagement members are controlled by the rotation of the same driving part, thereby prompting the corresponding sliding members to move along their sliding paths.

[0008] Preferably, the adjustment component comprises: A force applying member, arranged at a connection position between the sliding member and the engaging member; Wherein, the force applying member is configured to provide an elastic force on the engagement member; Furthermore, the direction of the elastic force causes the meshing surface of the meshing member to apply pressure toward one side of the driving portion, thereby maintaining the meshing connection between the meshing member and the driving portion.

[0009] Preferably, the driving unit comprises: A driving member, arranged inside the carrying platform; a Schmidt coupling connected to the drive end of the drive member; a driving gear connected to the Schmidt coupling; Wherein, the meshing surfaces of the plurality of meshing members are in meshing connection with the driving gear.

[0010] Preferably, the carrying platform comprises: a first loading platform and a second loading platform; Wherein, the first bearing platform and the second bearing platform are socketed; Wherein, the second bearing platform faces the end surface of the detection assembly and is configured to carry a plurality of nuts to be tested; Furthermore, the end surface is formed with a sliding groove consistent with the sliding displacement path, and the sliding member is slidably connected in the sliding groove.

[0011] Preferably, the bearing assembly comprises: An identification structure, arranged on the first carrying platform and the second carrying platform; Wherein, the identification structure is configured to indicate a rotation angle of the second supporting platform relative to the first supporting platform.

[0012] Preferably, the bearing assembly comprises: A lifting assembly, through which the load-bearing platform is connected to the frame; Wherein, the lifting assembly is configured to drive the carrying platform to move toward or away from the detection assembly.

[0013] Preferably, the sliding member comprises: a sliding rod having a first end and a second end; a restraining block connected to the sliding rod and located near the first end; Wherein, the restraining block is slidably connected in the sliding groove and is configured to prohibit the sliding rod from rotating; Wherein, the first end portion extends out of the sliding slot and is configured to contact the inner side surface of the nut to be tested; Wherein, the engaging member is connected to the sliding rod and is located close to the second end portion.

[0014] Preferably, it also includes: a locking member, disposed on the sliding rod and located near the second end; wherein the locking member contacts the engagement member and is configured to lock the engagement member at a preset height position of the sliding rod; The locking heights of the engagement members at relative positions are consistent, and the locking heights of the engagement members at different relative positions increase or decrease in sequence.

[0015] Preferably, the locking member comprises: A locking part 1 and a locking part 2; Wherein, the locking portion is sleeved on the sliding rod; Wherein, the second locking part is screwed to the second end portion; Furthermore, locking grooves with different heights are formed between the first locking portion and the second locking portion.

[0016] The beneficial effects of the present invention are: The invention adopts an adjustment component to solve the problem of low detection efficiency caused by single detection of a single nut to be tested in the traditional hardness test process. And through the adjustment component, multiple nuts to be tested can be adaptively arranged before testing, ensuring that each nut to be tested is subjected to uniform force during the hardness test process, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is one of the three-dimensional diagrams of a nut hardness detection device according to an embodiment of the present invention; Figure 2 for Figure 1 A local enlarged schematic diagram of the structure shown at position A; Figure 3 A front view of a nut hardness detection device according to an embodiment of the present invention; Figure 4 for Figure 3 A partial enlarged schematic diagram of the structure shown at position B; Figure 5 The second stereoscopic diagram of a nut hardness detection device according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the cooperation of the sliding member, the meshing member and the driving gear in the nut hardness detection device according to one embodiment of the present invention; Figure 7 It is a schematic diagram of the cooperation between the driving member and the Schmidt coupling in the nut hardness detection device according to one embodiment of the present invention; Figure 8 It is a front view of a sliding member in a nut hardness detection device according to an embodiment of the present invention; Fig. 9 is a cross-sectional view of a sliding member in a nut hardness detection device according to an embodiment of the present invention; Fig.10 It is a structural schematic diagram of an engagement member in a nut hardness detection device according to an embodiment of the present invention; Fig.11 for Fig.10 A local enlarged schematic diagram of the structure shown at point E.

[0018] in: 1. Frame; 2. Detection component; 201. Probe; 202. Sensor; 3. Nut to be tested; 4. Load-bearing component; 401. Load-bearing platform; 4011. First load-bearing platform; 4012. Second load-bearing platform; 4013. Sliding groove; 5. Adjustment component; 501. Sliding member; 5011. Sliding rod; 5012. Constraint block; 502. Driving part; 5021. Driving member; 5022. Schmidt coupling; 5023. Driving gear; 503. Engaging member; 504. Force-applying member; 6. Lifting component; 701. Locking part one; 702. Locking part two; 703. Locking groove. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] like Figures 1 to 9 As shown, the first embodiment of the present invention provides a nut hardness detection device, comprising: Rack 1; A detection assembly 2, disposed on the frame 1, configured to perform hardness detection on the nut 3 to be tested; The bearing assembly 4 is arranged on the frame 1 and is located below the detection assembly 2; The bearing assembly 4 includes a bearing platform 401 for bearing a plurality of nuts 3 to be tested; The adjustment component 5 is arranged on the carrying platform 401; The adjustment assembly 5 includes a plurality of sliding members 501, each of which can slide radially along the carrying platform 401; The sliding paths of the plurality of sliding members 501 extend from the periphery to the center of the carrying platform 401 and are radially symmetrically distributed; The sliding member 501 is configured to drive the nuts 3 to be tested to move synchronously along the corresponding sliding displacement path, so that the multiple nuts 3 to be tested abut against each other and finally form a stable arrangement with balanced force in the central area.

[0023] In this embodiment, the adjustment component 5 used in the nut hardness detection device solves the problem of low detection efficiency caused by single detection of a single nut in the traditional hardness detection process, and solves the problem of uneven force in simultaneous detection of multiple nuts. Through the adjustment component 5, the multiple nuts 3 to be tested can be adaptively arranged before the detection, ensuring that each nut 3 to be tested is subjected to uniform force during the hardness detection process, thereby improving the detection accuracy.

[0024] Specifically, the frame 1 serves as the supporting base of the entire device and is responsible for carrying, installing and fixing various components. The frame 1 can be divided into two parts, the upper part is used to install the hardness detection component 2, and the lower part is used to install the bearing component 4 and the adjustment component 5. The frame 1 has sufficient rigidity to ensure that the device is stable and reliable during use. The upper detection component 2 is mainly used to measure the hardness of the nut 3 to be tested, and the lower part is used to accurately control the position and arrangement of the nut 3 to be tested through the adjustment component 5 to ensure the accuracy of the test.

[0025] The bearing assembly 4 is located below the frame 1 and is mainly used to support the nuts 3 to be tested. It includes a bearing platform 401, which can bear multiple nuts 3 to be tested. The bearing platform 401 is a flat and stable surface, which can ensure the stable placement of the nuts 3 to be tested during the hardness test. The platform should also have wear resistance and good thermal conductivity to meet the needs of high-frequency use.

[0026] On the basis of the above, an adjustment component 5 is further added to solve the problem of low detection efficiency caused by single detection of a single nut 3 to be tested in the traditional hardness detection process in the prior art, and at the same time solve the problem of uneven force when multiple nuts 3 to be tested are detected simultaneously, thereby improving the hardness detection accuracy.

[0027] The adjustment assembly 5 includes a plurality of sliding members 501, each of which can slide radially along the carrying platform 401. The sliding paths of the plurality of sliding members 501 extend from the periphery to the center of the carrying platform 401 and are radially symmetrically distributed. When sliding, each sliding member 501 can accurately control the movement of the nut 3 to be tested, ensuring that the plurality of nuts 3 to be tested can move synchronously along a specific path.

[0028] The driving action of the sliding member 501 ensures that each nut 3 to be tested contacts other nuts 3 to be tested around it during the movement, thereby forming a stable arrangement in the central area of ​​the carrying platform 401 (referring to a certain area formed by the center of the carrying platform 401 as the origin and the radius R). In this process, the force on the nut 3 to be tested is uniform, which solves the problem of uneven force when multiple nuts 3 to be tested are tested simultaneously.

[0029] When one of the slides 501 is driven, it can drive the corresponding nut 3 to be tested to move along a predetermined path. The synchronous movement of multiple slides 501 can ensure that all the nuts 3 to be tested move at the same speed, and finally form a force-balanced arrangement state. In other words, multiple nuts 3 to be tested cooperate with the slides 501 so that they can form a force-balanced state in the central area when they are finally arranged. The pressure on each nut 3 to be tested is uniform and symmetrical, which helps to improve the uniform distribution of force during hardness testing and avoids hardness testing errors caused by inconsistent spacing or uneven arrangement of the nuts 3 to be tested.

[0030] In a specific embodiment, the detection assembly 2 is used to perform hardness detection on the nuts 3 to be tested, ensuring that the nuts 3 to be tested that are neatly arranged in the bearing assembly 4 can be accurately hardened. Specifically, the detection assembly 2 includes the following parts: The probe 201 is the core component of the detection assembly 2, and is mainly used to directly contact the nut 3 to be tested and measure its hardness. The probe 201 is usually made of a high-hardness material, such as cemented carbide or diamond material, to ensure that it is not easy to wear during multiple uses. The probe 201 contacts the surface of the nut 3 to be tested and uses a standardized hardness test method (such as Rockwell hardness, Vickers hardness or Brinell hardness) for measurement. The probe 201 can transmit the measured hardness value to the control system in real time for analysis and processing by the operator or the control system.

[0031] The sensor 202 is used to accurately measure the pressure or load applied to the probe 201, and then calculate the hardness value of the nut 3 to be tested. The sensor 202 is usually a piezoelectric or strain sensor, which can sense tiny deformation or force changes with high precision and convert the signal into processable electronic data.

[0032] In a specific implementation, preferably, an even number of nuts 3 to be tested are placed on the carrying platform 401 .

[0033] like Figure 2 , Figures 5 to 7 As shown, the second embodiment of the present invention provides a nut hardness detection device, and on the basis of the above embodiment, the adjustment component 5 includes: The driving unit 502 is disposed inside the carrying platform 401; An engaging member 503, wherein the engaging member 503 has a plurality of members, and each engaging member 503 corresponds to a sliding member 501; One end of the meshing member 503 is connected to the sliding member 501, and the other end extends toward the driving gear 5023 and forms a meshing connection with the driving gear 5023; The plurality of engagement members 503 are controlled by the rotation of the same driving portion 502 to drive the corresponding sliding member 501 to move along its sliding path.

[0034] In this embodiment, the adjustment and movement accuracy of the nut hardness detection device are further optimized, and the driving part 502 and the engaging part 503 cooperate with each other so that multiple sliding parts 501 can slide synchronously and accurately along their predetermined paths, thereby effectively arranging the multiple nuts 3 to be tested into a stable state of force balance.

[0035] Specifically, the driving part 502 is responsible for providing power to drive the movement of the engagement member 503 and the sliding member 501. The driving part 502 is connected to the engagement member 503 through a mechanical transmission system to drive the sliding member 501 to slide along the radial direction of the carrying platform 401. The driving part 502 is generally composed of an electric motor or a servo motor, which can accurately control the rotation speed and movement direction, ensure that multiple sliding members 501 move synchronously, and thus achieve accurate arrangement of the nuts 3 to be tested.

[0036] The meshing member 503 is composed of a plurality of independent components, each meshing member 503 cooperates with a sliding member 501, and is responsible for transmitting the power of the driving part 502 to each sliding member 501. The meshing member 503 is a rack, each rack cooperates with a sliding member 501, and the rack and the driving part 502 mesh together to drive the sliding member 501 to move precisely along a predetermined sliding path, thereby ensuring the synchronous arrangement of a plurality of nuts 3 to be tested.

[0037] The sliding member 501 is a component for driving the displacement of the nut 3 to be tested, and each sliding member 501 slides along the radial direction of the bearing platform 401 to push the nut 3 to be tested to move along a predetermined path. The sliding member 501 is connected to the engagement member 503, receives the power of the driving part 502 and converts it into linear motion.

[0038] That is, the linkage mechanism formed by the driving part 502 and the meshing member 503 ensures that all the meshing members 503 are driven at the same time, thereby achieving synchronous movement of the sliding member 501 and ensuring accurate arrangement of the nut 3 to be tested. The linkage mechanism makes power transmission more efficient, reduces mechanical friction loss, and improves the working efficiency of the device.

[0039] Since each engagement member 503 is precisely engaged with the corresponding sliding member 501 and driven by the same driving unit 502, the adjustment assembly 5 of this embodiment can provide a high-precision adjustment function while ensuring motion synchronization. In this way, multiple nuts 3 to be tested can be kept in a central area and form a stable arrangement with balanced force, providing an accurate benchmark for subsequent hardness testing.

[0040] like Figure 6 , Fig.10 and Fig.11As shown, the third embodiment of the present invention provides a nut hardness detection device, and on the basis of the above embodiment, the adjustment component 5 includes: A force applying member 504 is provided at a connection position between the sliding member 501 and the engaging member 503; The force applying member 504 is configured to provide an elastic force on the engaging member 503; Furthermore, the direction of the elastic force causes the meshing surface of the meshing member 503 to apply pressure toward one side of the driving portion 502 , thereby maintaining the meshing connection between the meshing member 503 and the driving portion 502 .

[0041] In this embodiment, a force applying member 504 is further added to enhance the contact pressure between the engagement member 503 and the driving portion 502 to ensure that the engagement connection is more stable and reliable.

[0042] Specifically, the force applying member 504 is disposed at the connection position between the sliding member 501 and the meshing member 503, and is responsible for applying elastic force to the meshing member 503. The force applying member 504 enables the meshing member 503 to always maintain stable meshing with the driving part 502, avoiding loose meshing or unstable transmission due to insufficient contact pressure during the transmission process.

[0043] That is, the force-applying member 504 provides additional elastic force to ensure that the meshing surface of the meshing member 503 and the driving part 502 always maintains good contact, thereby avoiding slippage or tooth stripping caused by insufficient contact force. The force of the force-applying member 504 ensures that when the driving part 502 rotates, a stable and reliable transmission relationship can be formed between the meshing member 503 and the driving part 502, thereby ensuring that multiple sliding members 501 move synchronously and achieve accurate arrangement of the nuts 3 to be tested.

[0044] In a specific embodiment, the force applying member 504 is specifically a torsion spring to further enhance the contact stability between the engagement member 503 and the driving part 502. The torsion spring is placed inside the engagement member 503, specifically at the connection position between the engagement member 503 and the sliding member 501. With this configuration, the torsion spring can effectively provide the required elastic force to ensure the contact stability between the engagement member 503 and the driving part 502.

[0045] One end of the torsion spring is fixed on the sliding member 501, and the other end is installed inside the engaging member 503 (the engaging member 503 has a mounting groove for accommodating the torsion spring, and the bent portion and the end of the torsion spring are embedded in the mounting groove). Through this design, the elastic force of the torsion spring acts on the engaging member 503, pushing it to maintain stable contact with the driving part 502.

[0046] The torsion spring provides a continuous pressure to the engagement member 503 through its own elastic properties, so that the engagement surface of the engagement member 503 always applies force toward the driving portion 502, thereby ensuring that the engagement connection between the engagement member 503 and the driving portion 502 is not loosened.

[0047] According to the requirements of actual application, torsion springs of different specifications can be selected, and their elastic coefficients, torque magnitudes and other parameters can be adjusted to ensure that the torsion springs can provide sufficient pressure in actual work to ensure stable contact between the engagement member 503 and the driving portion 502 .

[0048] like Figure 6 to Figure 7 As shown, the fourth embodiment of the present invention provides a nut hardness detection device, and based on the above embodiment, the driving part 502 includes: A driving member 5021 is disposed inside the carrying platform 401; A Schmidt coupling 5022 connected to the driving end of the driving member 5021; A driving gear 5023 connected to a Schmidt coupling 5022; The meshing surfaces of the plurality of meshing members 503 are meshed with the driving gear 5023 .

[0049] In this embodiment, the driving member 5021 is disposed inside the carrying platform 401 and is responsible for providing driving power. For example, the driving member 5021 is a motor.

[0050] The Schmidt coupling 5022 is connected to the driving end of the driving member 5021, and plays the role of connection and transmission, especially ensuring that multiple nuts 3 to be tested form a force balance structure (that is, through the cooperation of the Schmidt coupling 5022, multiple racks, that is, the meshing member 503 and a driving gear 5023, multiple independent force balance mechanisms are formed during the detection process. Each force balance mechanism ensures that the extrusion force on each nut 3 to be tested is equal by adjusting the relative position and force between the racks, thereby achieving uniform force and accurate measurement during hardness testing. This structure can effectively compensate for the uneven force caused by different surface roughness of the nuts 3 to be tested or other external factors, thereby ensuring the stability and reliability of the operation of the device).

[0051] More specifically, the function of the Schmidt coupling 5022 is to achieve a force balance structure through a small horizontal displacement. Specifically, when the surface roughness of a nut 3 to be tested is large and the reverse resistance generated is large, the meshing member 503 corresponding to the nut 3 to be tested will encounter a large resistance, causing its movement speed to slow down. At this time, the Schmidt coupling 5022 adjusts the transmission process through a small horizontal displacement, distributing more driving force to the other rack until the resistance generated by the nuts 3 to be tested on both sides is basically equal.

[0052] Specifically, when one rack encounters greater resistance at the front end, the other rack will continue to move until the resistance of the racks on both sides is relatively balanced, and the gear driving force is insufficient to push the racks to continue moving, and the gears stop rotating. The Schmidt coupling 5022 maintains a balance between the forces of the racks through slight adjustments, ensuring stability and uniformity in the entire force transmission process, thereby ensuring balanced force on the nut 3 to be tested and ensuring the accuracy of the measurement process.

[0053] In addition, since the degree of compression of each nut 3 to be tested may be different, some nuts 3 to be tested may be subjected to a larger extrusion force, thus being compressed more tightly and exerting a larger reverse resistance on the rack; while other nuts 3 to be tested may produce a smaller reverse force due to looseness or insufficient compression. The Schmidt coupling 5022 can adapt to these differences in real time through slight adjustments, so that the force balance of the entire device can be maintained, ensuring that the nut 3 to be tested is always subjected to uniform force during the detection process, thereby ensuring the accuracy and stability of the measurement results.

[0054] When the driving member 5021 is started, the Schmidt coupling 5022 connects the driving member 5021 and the driving gear 5023, ensuring that the power can be transmitted to the driving gear 5023 stably and without error. The driving gear 5023 transmits power to each engaging member 503 by meshing with the engaging member 503, prompting them to move along their sliding path, so that the nut 3 to be tested moves along the predetermined path on the supporting platform 401 and forms a stable arrangement.

[0055] like Figure 2 , Figure 3 and Figure 5 As shown, the fifth embodiment of the present invention provides a nut hardness detection device, and based on the above embodiment, the bearing platform 401 includes: A first loading platform 4011 and a second loading platform 4012; Wherein, the first carrying platform 4011 and the second carrying platform 4012 are connected in a socket manner; The second bearing platform 4012 faces the end surface of the detection component 2 and is configured to bear a plurality of nuts 3 to be tested; Moreover, a sliding groove 4013 consistent with the sliding displacement path is formed on the end surface, and the sliding member 501 is slidably connected in the sliding groove 4013 .

[0056] In this embodiment, the first bearing platform 4011 is used as the supporting part of the bearing platform 401 to fix the overall structure, while the second bearing platform 4012 is located in the area close to the detection component 2 and is responsible for directly carrying multiple nuts 3 to be tested. The end surface of the second bearing platform 4012 is designed as a sliding groove 4013, which is consistent with the sliding path of the sliding member 501, so as to ensure the smooth movement of the sliding member 501, avoid the problem of stagnation or friction between the sliding member 501 and the bearing platform 401, and further improve the accuracy and efficiency of the device.

[0057] The first carrying platform 4011 and the second carrying platform 4012 are in the form of a sliding sleeve connection to ensure that the second carrying platform 4012 can rotate relative to the first carrying platform 4011 .

[0058] The sixth embodiment of the present invention provides a nut hardness detection device, and based on the above embodiment, the bearing assembly 4 includes: The identification structure (not shown in the figure) is arranged on the first carrying platform 4011 and the second carrying platform 4012; The identification structure is configured to indicate a rotation angle of the second carrier platform 4012 relative to the first carrier platform 4011 .

[0059] In this embodiment, the main function of the identification structure is to ensure that the rotation angle of the second bearing platform 4012 is consistent each time, so as to ensure that the multiple nuts 3 to be tested can be accurately contacted with the probe 201 of the detection assembly 2 in sequence. Through this structure, it is possible to ensure that the position and posture of each nut 3 to be tested are always consistent during the hardness test process, thereby improving the accuracy and repeatability of the test results.

[0060] Specifically, the identification structure can use a dial, a pointer or a photoelectric sensor 202 to display the rotation angle of the second carrier 4012 relative to the first carrier 4011 in real time. When the second carrier 4012 rotates, the identification structure can clearly indicate its rotation angle, and the operator can make precise adjustments based on these identification information to ensure that the detection position of each nut 3 to be tested is consistent. In this way, multiple nuts 3 to be tested can contact the probe 201 in turn within the same detection cycle, and the position and stress state of each nut 3 to be tested are consistent, ensuring the accuracy of the detection.

[0061] The identification structure not only improves the operating accuracy of the nut hardness testing device, but also facilitates the reuse and adjustment of the equipment, especially when batch testing nuts 3 of different sizes or types to be tested, it can ensure the stability and consistency of the testing process.

[0062] like Figures 1 to 3 As shown, the seventh embodiment of the present invention provides a nut hardness detection device, and on the basis of the above embodiment, the bearing assembly 4 includes: A lifting assembly 6, wherein the carrying platform 401 is connected to the frame 1 via the lifting assembly 6; The lifting assembly 6 is configured to drive the carrying platform 401 to move toward or away from the detection assembly 2 .

[0063] In this embodiment, the main function of the lifting assembly 6 is to adjust the distance between the bearing platform 401 and the detection assembly 2, so as to achieve height adjustment of the nut 3 to be tested. On the other hand, the contact pressure between the nut 3 to be tested and the probe 201 of the detection assembly 2 can be accurately controlled according to the size, hardness or characteristics of different nuts 3 to be tested, ensuring that each nut 3 to be tested can be hardness tested under appropriate testing conditions.

[0064] Specifically, the lifting assembly 6 can be electrically lifted, pneumatically lifted, or mechanically lifted, and can flexibly adjust the height of the carrying platform 401 as needed.

[0065] like Figure 6 , Figure 8 and Fig. 9 As shown, the eighth embodiment of the present invention provides a nut hardness detection device, and based on the above embodiment, the sliding member 501 includes: A sliding rod 5011, wherein the sliding rod 5011 has a first end and a second end; The restraining block 5012 is connected to the sliding rod 5011 and is located near the first end; The restraining block 5012 is slidably connected in the sliding groove 4013 and is configured to prohibit the sliding rod 5011 from rotating; The first end portion extends out of a sliding groove 4013 and is configured to contact the inner side surface of the nut 3 to be tested; The engaging member 503 is connected to the sliding rod 5011 and is located close to the second end.

[0066] In this embodiment, the sliding member 501 is composed of a sliding rod 5011 and a restraining block 5012, one end of the sliding rod 5011 contacts the inner side surface of the nut 3 to be tested, and the other end is connected to the engagement member 503. The sliding rod 5011 slides through the restraining block 5012, and the restraining block 5012 is slidably connected in the sliding groove 4013 to prevent the sliding rod 5011 from rotating, ensuring that the sliding rod 5011 moves straight along the sliding path, avoiding unnecessary lateral force or tilting, and maintaining stable contact between the nut 3 to be tested and the detection assembly 2.

[0067] Specifically, the function of the constraint block 5012 is to ensure that the sliding rod 5011 does not rotate during the sliding process, reduce the friction between the sliding rod 5011 and the sliding groove 4013, and ensure the smooth movement of the sliding member 501. The design of the constraint block 5012 allows the sliding rod 5011 to move only along the set sliding path and stably contact the inner side of the nut 3 to be tested, ensuring uniform force on the nut 3 to be tested during the detection process.

[0068] The first end of the sliding rod 5011 extends out of the sliding groove 4013 and contacts the inner side of the nut 3 to be tested, ensuring that each nut 3 to be tested can be stably applied with appropriate force during hardness testing. The second end of the sliding rod 5011 is connected to the driving part 502 through the engagement member 503, receives the power of the driving part 502, and transmits the force to the sliding rod 5011, so that it moves along the sliding groove 4013, thereby achieving precise control of the nut 3 to be tested.

[0069] In a specific implementation, the restraining block 5012 is a rectangular block, and its length direction is consistent with the length direction of the sliding slot 4013 .

[0070] In a specific embodiment, the first end is provided with a rotatable abutment head.

[0071] like Figure 6 , Figure 8 and Fig. 9 As shown, the ninth embodiment of the present invention provides a nut hardness detection device, and based on the above embodiment, further includes: A locking member, disposed on the sliding rod 5011 and located near the second end; Wherein, the locking member contacts the engagement member 503 and is configured to lock the engagement member 503 at a preset height position of the sliding rod 5011; The locking heights of the engagement members 503 at relative positions are consistent, and the locking heights of the engagement members 503 at different relative positions increase or decrease in sequence.

[0072] In this embodiment, the locking member cooperates with the sliding rod 5011 and the engaging member 503 to prevent the engaging member 503 from unnecessary displacement or rotation during the detection process through the locking mechanism. The function of the locking member is to ensure that the engaging member 503 can be kept in a predetermined position in the working state, so as to ensure that the detection of each nut 3 to be tested is always carried out under the same conditions, and to avoid detection errors caused by displacement or rotation.

[0073] In addition, since multiple meshing members 503 are meshed and connected with the same driving gear 5023, in order to avoid motion interference between the meshing members 503, the meshing members 503 at relative positions are preferably locked at the same height. At the same time, the locking heights of the meshing members 503 at different relative positions are sequentially increased or decreased to ensure that the meshing members 503 are driven in order at different working positions.

[0074] The tenth embodiment of the present invention provides a nut hardness detection device, and based on the above embodiment, the locking member includes: A locking part 1 701 and a locking part 2 702; The locking part 701 is sleeved on the sliding rod 5011; The second locking part 702 is screwed to the second end; Furthermore, a locking groove 703 of different heights is formed between the first locking portion 701 and the second locking portion 702 .

[0075] In this embodiment, the first locking part 701 is sleeved on the sliding rod 5011, for example, it is a locking ring of different lengths. The second locking part 702 is screwed to the second end of the sliding rod 5011, for example, it is a locking bolt.

[0076] Since the lengths of the first locking portion 701 are different, locking grooves 703 of different heights are formed between the first locking portion 701 and the second locking portion 702 , and the engaging member 503 is located in the locking groove 703 .

[0077] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A nut hardness detection device, characterized in that: include: Rack(1); A detection component (2) is arranged on the frame (1) and is configured to perform hardness detection on the nut (3) to be tested; A bearing assembly (4) is arranged on the frame (1) and is located below the detection assembly (2); Wherein, the bearing assembly (4) comprises a bearing platform (401) for bearing a plurality of nuts (3) to be tested; An adjustment component (5) disposed on the carrying platform (401); Wherein, the adjustment component (5) comprises a plurality of sliding members (501), and each of the sliding members (501) is capable of sliding radially along the carrying platform (401); The sliding paths of the plurality of sliding members (501) extend from the periphery to the center of the bearing platform (401) and are distributed radially and symmetrically; The sliding member (501) is configured to drive the nuts to be tested (3) to move synchronously along corresponding sliding displacement paths, so that a plurality of nuts to be tested (3) abut against each other and eventually form a stable arrangement with balanced force in a central area.

2. The nut hardness detection device according to claim 1, characterized in that: The regulating component (5) comprises: A driving unit (502) is arranged inside the carrying platform (401); An engaging member (503), wherein there are a plurality of the engaging members (503), and each engaging member (503) corresponds to one sliding member (501); Wherein, one end of the engagement member (503) is connected to the sliding member (501), and the other end extends toward the driving portion (502) and forms an engagement connection with the driving portion (502); The plurality of engagement members (503) are controlled by the rotation of the same driving portion (502), thereby causing the corresponding sliding members (501) to move along their sliding paths.

3. The nut hardness detection device according to claim 2, characterized in that: The regulating component (5) comprises: A force applying member (504) is arranged at a connection position between the sliding member (501) and the engaging member (503); Wherein, the force applying member (504) is configured to provide an elastic force on the engaging member (503); Furthermore, the direction of the elastic force causes the meshing surface of the meshing member (503) to apply pressure toward one side of the driving portion (502), thereby maintaining the meshing connection between the meshing member (503) and the driving portion (502).

4. The nut hardness detection device according to claim 3, characterized in that: The driving unit (502) comprises: A driving member (5021) is arranged inside the carrying platform (401); A Schmidt coupling (5022) connected to the driving end of the driving member (5021); A driving gear (5023) connected to the Schmidt coupling (5022); The meshing surfaces of the plurality of meshing members (503) form a meshing connection with the driving gear (5023).

5. The nut hardness detection device according to claim 4, characterized in that: The carrying platform (401) comprises: A first carrying platform (4011) and a second carrying platform (4012); Wherein, the first bearing platform (4011) and the second bearing platform (4012) are sleeved; Wherein, the second bearing platform (4012) faces the end surface of the detection component (2) and is configured to bear a plurality of nuts (3) to be tested; Furthermore, the end surface is formed with a sliding groove (4013) that is consistent with the sliding displacement path, and the sliding member (501) is slidably connected in the sliding groove (4013).

6. The nut hardness detection device according to claim 5, characterized in that: The bearing assembly (4) comprises: an identification structure, arranged on the first carrying platform (4011) and the second carrying platform (4012); Wherein, the identification structure is configured to indicate a rotation angle of the second supporting platform (4012) relative to the first supporting platform (4011).

7. The nut hardness detection device according to claim 1, characterized in that: The bearing assembly (4) comprises: A lifting component (6), wherein the carrying platform (401) is connected to the frame (1) via the lifting component (6); Wherein, the lifting assembly (6) is configured to drive the carrying platform (401) to move towards or away from the detection assembly (2).

8. The nut hardness detection device according to claim 5, characterized in that: The sliding member (501) comprises: A sliding rod (5011), the sliding rod (5011) having a first end and a second end; A restraining block (5012), connected to the sliding rod (5011) and located close to the first end; Wherein, the restraining block (5012) is slidably connected in the sliding groove (4013) and is configured to prohibit the sliding rod (5011) from rotating; Wherein, the first end portion extends out of the sliding groove (4013) and is configured to contact the inner side surface of the nut (3) to be tested; Wherein, the engagement member (503) is connected to the sliding rod (5011) and is located close to the second end.

9. The nut hardness detection device according to claim 8, characterized in that: Also includes: A locking member, arranged on the sliding rod (5011) and located close to the second end; Wherein, the locking member is in contact with the engaging member (503) and is configured to lock the engaging member (503) at a preset height position of the sliding rod (5011); The locking heights of the engagement members (503) at relative positions are consistent, and the locking heights of the engagement members (503) at different relative positions increase or decrease in sequence.

10. The nut hardness detection device according to claim 9, characterized in that: The locking member comprises: A locking part (701) and a locking part (702); Wherein, the locking portion (701) is sleeved on the sliding rod (5011); Wherein, the second locking part (702) is screwed to the second end part; Furthermore, locking grooves (703) of different heights are formed between the first locking portion (701) and the second locking portion (702).

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