A shaft detection device

Abstract

The present invention relates to a shaft detection device, comprising a mounting plate, a support assembly and a torque detection assembly, wherein the mounting plate has a first plane and a second plane relative to each other, and a first through hole extending toward the second plane is provided on the first plane; the support assembly comprises a support seat, a first support frame and a contoured helical gear spindle, wherein the support seat is arranged on the first plane, the support seat is arranged corresponding to the first through hole, the support seat has a second through hole corresponding to the first through hole, the first support frame has a socket corresponding to the second through hole, and the contoured helical gear spindle is rotatably arranged in the first support frame; the torque detection assembly comprises a first drive motor, a torque sensor and a clamping seat arranged in sequence toward the support seat, the first drive motor is fixed to the second plane, and the torque sensor and the clamping seat are located in the support seat. The present application performs torque detection on the helical gear spindle to be measured through the torque detection assembly to ensure the quality of the helical gear spindle to be measured and to ensure the service life of the helical gear spindle to be measured.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts detection, and in particular to a shaft detection device. Background Art

[0002] The electronic power-assisted braking system has the advantages of small size, high braking torque, short braking distance, long service life and low price. It is currently widely used in automobiles.

[0003] The electronic power-assisted brake system consists of gears and a helical gear spindle. After each helical gear spindle is manufactured, its length and diameter must be inspected. However, these length and diameter tests only determine whether the dimensions are within the permitted tolerances, ensuring proper assembly. In actual operating conditions, the forces acting on the helical gear spindle can affect its service life; therefore, quality inspection of the helical gear spindle is crucial. Summary of the Invention

[0004] Based on the above description, the present invention provides a shaft detection device, which aims to solve the problem that the existing helical gear spindle only performs size detection.

[0005] The technical solution of the present invention to solve the above technical problems is as follows:

[0006] A shaft detection device, comprising:

[0007] The mounting plate has a first plane and a second plane opposite to each other, wherein the first plane is provided with a first through hole extending toward the second plane;

[0008] A support assembly comprising a support seat, a first support frame, and a contoured helical gear spindle, wherein the support seat is disposed on the first plane, the support seat is disposed corresponding to the first through hole, the support seat has a second through hole corresponding to the first through hole, the first support frame has an insertion hole corresponding to the second through hole, the contoured helical gear spindles are configured as at least one pair, the contoured helical gear spindles are rotatably disposed within the first support frame, and each pair of contoured helical gear spindles are symmetrically disposed with the axis of the second through hole as an axis of symmetry;

[0009] The torque detection assembly includes a first drive motor, a torque sensor and a clamp seat which are sequentially arranged toward the support seat. The first drive motor is fixed to the second plane, and the torque sensor and the clamp seat are located inside the support seat.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, it includes a pressure detection component, which includes a second support frame, a pressure piece and a pressure sensor. The second support frame is arranged on the support seat, the pressure piece is installed on the second support frame, and a pressure plate is provided at the output end of the pressure piece. The pressure sensor is arranged on the side of the pressure plate close to the support seat.

[0012] Furthermore, the second support frame includes a support plate and a first guide coupler, the support plate is arranged opposite to the support seat, the first guide coupler is configured as at least one pair, the first guide couplers are all arranged between the support seat and the support plate, each pair of the first guide couplers are symmetrically arranged with the axis of the second through hole as the axis of symmetry, and the pressure plate is connected to the first guide coupler.

[0013] Furthermore, it includes a displacement sensor, which is arranged on the support seat and is arranged opposite to the second support frame.

[0014] Furthermore, it includes a safety grating, which is arranged on the first plane and is arranged opposite to the support seat.

[0015] Furthermore, it includes a diameter detection mechanism, which includes a first driving coupling, a sliding coupling, a movable arm, a linear driving component and a diameter detection assembly. The sliding coupling is configured as at least one pair, and the first driving coupling and the sliding coupling are both arranged on a side wall of the support seat. Each pair of sliding couplings is symmetrically arranged with a first defined axis as a symmetry axis. The movable arm is connected to the sliding coupling, and an accommodating cavity is provided at one end of the movable arm away from the sliding coupling. The linear driving component is arranged in the accommodating cavity, and a part of the diameter detection assembly extends into the accommodating cavity and is connected to the output end of the linear driving component.

[0016] Furthermore, the diameter detection assembly includes a shell, a measuring plate, a positioning plate, a second drive coupling, a connecting plate and a feedback coupling, one end of the shell extends into the accommodating cavity and is connected to the output end of the linear drive component, an accommodating groove is provided at the end of the shell facing away from the linear drive component, the measuring plate is arranged in the accommodating groove, the positioning plate is connected to the end of the shell facing away from the linear drive component, the second drive coupling is arranged in the shell, the shell has a third plane, a second guide hole is provided on the third plane, one end of the connecting plate is connected to the output end of the second drive coupling, the other end of the connecting plate passes through the second guide hole and is exposed outside the shell, the feedback coupling is arranged on the third plane, and the feedback coupling is arranged opposite to the connecting plate.

[0017] Furthermore, the feedback assembly includes a mounting seat, a magnetic core, a movable rod, a sleeve, a winding and an elastic member, the mounting seat is arranged on the first plane, the mounting seat is provided with a mounting hole, the magnetic core is movably arranged in the mounting hole, one end of the movable rod is connected to the connecting plate, the other end of the movable rod is inserted into the mounting hole and connected to the magnetic core, the movable rod is provided with a step on the rod body in the mounting hole, the sleeve is arranged in the mounting hole, the sleeve is arranged opposite to the magnetic core, the winding is configured into multiple pairs, multiple pairs of windings are arranged on the sleeve, each pair of the windings is symmetrically arranged with the axis of the sleeve as the symmetry axis, one end of the elastic member abuts against the step, and the other end of the elastic member abuts against the side wall of the mounting hole relative to the step.

[0018] Furthermore, at least one sliding groove is provided on each of a pair of side walls of the accommodating cavity, and the housing is provided with a sliding protrusion corresponding to each of the sliding grooves, and the sliding protrusion is in sliding engagement with the sliding groove.

[0019] Furthermore, the diameter detection assembly includes a second guide coupling, which is configured as at least one pair. Each pair of second guide couplings is symmetrically arranged with the second defined axis as the symmetry axis, and each second guide coupling is connected to the measuring plate.

[0020] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0021] (1) This application uses a torque detection component to perform torque detection on the helical gear spindle to ensure the quality of the helical gear spindle and the service life of the helical gear spindle. In addition, the profiling helical gear spindle is combined with the helical gear spindle to simulate the assembly environment of the helical gear spindle.

[0022] (2) The present application performs torque detection on the helical gear spindle to be tested by using a pressure detection component, or performs pressure detection and torque detection on the helical gear spindle to be tested respectively by using a pressure detection component and a torque detection component in combination, which can more realistically simulate the working conditions of the helical gear spindle to be tested, thereby timely discovering quality defects of the helical gear spindle to be tested, processing them in advance, and improving the yield rate of the helical gear spindle to be tested.

[0023] (3) The present application uses a diameter detection mechanism to directly detect the diameter of the helical gear main shaft being tested before or after the torque detection component and / or pressure detection component performs torque detection and pressure detection. This eliminates the need for manual intervention, reduces labor intensity, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an assembly diagram of a shaft detection device provided in an embodiment of the present invention;

[0025] Figure 2 Schematic diagram of the assembly of the support assembly and the diameter detection mechanism in an embodiment of the present invention;

[0026] Figure 3 is a vertical cross-sectional view of a support assembly according to an embodiment of the present invention;

[0027] Figure 4 Schematic diagram of the structure of the torque detection assembly in an embodiment of the present invention;

[0028] Figure 5 This is a structural diagram of a pressure detection assembly in an embodiment of the present invention;

[0029] Figure 6 A schematic structural diagram of a safety grating according to an embodiment of the present invention;

[0030] Figure 7 This is an assembly diagram of the diameter detection mechanism in an embodiment of the present invention;

[0031] Figure 8 A partial vertical cross-sectional view of a diameter detection mechanism in an embodiment of the present invention;

[0032] Figure 9 for Figure 8 A partial enlarged view of the middle A;

[0033] Figure 10 Schematic diagram of the structure of the sleeve in an embodiment of the present invention;

[0034] Figure 11 Schematic diagram of the structure of the diameter detection component in an embodiment of the present invention;

[0035] Figure 12 is a vertical cross-sectional view of a diameter detection assembly in an embodiment of the present invention;

[0036] Figure 13 Schematic diagram of the structure of the helical gear spindle to be measured in an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] L1, first definition axis; L2, second definition axis;

[0039] 10. Mounting plate; 11. First through hole;

[0040] 20. Support assembly; 21. Support seat; 211. First guide hole; 22. First support frame; 221. Top plate; 222. Bottom plate; 223. Support column; 23. Profiled helical gear spindle;

[0041] 30. Torque detection assembly; 31. First drive motor; 311. Connecting seat; 32. Torque sensor; 33. Clamping seat; 34. Reducer;

[0042] 40. Pressure detection assembly; 41. Second support frame; 411. Support plate; 412. First guide assembly; 42. Pressure member; 421. Pressure plate; 43. Pressure sensor;

[0043] 50. Displacement sensor;

[0044] 60. Safety grating;

[0045] 70. Diameter detection mechanism; 71. First drive assembly; 711. Second drive motor; 712. First screw rod; 713. Nut seat; 72. Sliding assembly; 73. Moving arm; 731. Accommodating chamber; 7311. Slide groove; 74. Linear drive member; 75. Diameter detection assembly; 751. Housing; 7511. Second guide hole; 7512. Sliding protrusion; 752. Measuring plate; 753. Positioning plate; 7531. Back plate; 7532. Reference plate; 754. Second drive assembly; 7541. Third drive motor; 7542. Second screw rod; 7543. Screw sleeve; 755. Connecting plate; 756. Feedback assembly; 7561. Mounting seat; 7562. Magnetic core; 7563. Moving rod; 7564. Sleeve; 75641. Winding; 7565. Elastic member; 757. Second guide assembly. DETAILED DESCRIPTION

[0046] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0048] It will be understood that spatial relational terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0049] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

[0050] Reference Figures 1 and 2 , 4 and 13, the present invention provides a technical solution: a shaft detection device, including a mounting plate 10, a support assembly 20 and a torque detection assembly 30, the mounting plate 10 has a first plane and a second plane relative to each other, the first plane is provided with a first through hole 11 extending toward the second plane; the support assembly 20 includes a support seat 21, a first support frame 22 and a contoured helical gear spindle 23, the support seat 21 is provided on the first plane, the support seat 21 is provided corresponding to the first through hole 11, and the support seat 21 is provided corresponding to the first through hole 11 The second through hole, the first support frame 22 has an insertion hole corresponding to the second through hole, the contoured helical gear spindle 23 is configured as at least one pair, the contoured helical gear spindle 23 is rotatably arranged in the first support frame 22, and each pair of contoured helical gear spindles 23 is symmetrically arranged with the axis of the second through hole as the symmetry axis; the torque detection assembly 30 includes a first drive motor 31, a torque sensor 32 and a clamping seat 33 arranged in sequence toward the support seat 21, the first drive motor 31 is fixed to the second plane, and the torque sensor 32 and the clamping seat 33 are located in the support seat 21.

[0051] For example, the first plane may be the top or bottom surface of the mounting plate 10; the second plane may be the bottom or top surface of the mounting plate 10. When the first plane is the top surface of the mounting plate 10, the second plane is the bottom surface of the mounting plate 10; when the first plane is the bottom surface of the mounting plate 10, the second plane is the top surface of the mounting plate 10. The torque sensor 32 may be of the SBT850A model, for example.

[0052] In this embodiment, after the helical gear spindle to be tested passes through the insertion hole, the second through-hole, and the first through-hole 11 in sequence and is inserted into the clamping base 33, the first drive motor 31 drives the torque sensor 32 and the clamping base 33 to rotate, causing the helical gear spindle to be tested to transmit power to the contouring helical gear spindle 23. At this time, the torque sensor 32 detects the torque of the helical gear spindle to be tested. During the actual testing process, the helical gear spindle to be tested undergoes at least two torque tests, and the speed of the first drive motor 31 is gradually increased, thereby obtaining at least two torques. The at least two torques are then compared with each other. If the difference between the at least two torques is within the allowable tolerance range, it is determined to be qualified, and the next helical gear spindle to be tested is tested.

[0053] Reference Figures 2 and 3 As shown, in some embodiments, the first support frame 22 includes a top plate 221, a bottom plate 222 and a support column 223, the top plate 221 is arranged opposite to the first plane, the second through hole is formed on the top plate 221, the bottom plate 222 is connected to the second plane, the support column 223 is configured as four, the four support columns 223 are constructed to be distributed in an array, and the four support columns 223 are arranged between the top plate 221 and the first plane, one end of each contoured helical gear spindle 23 is connected to the top plate 221, and the other end of each contoured helical gear spindle 23 passes through the top wall of the support seat 21 and is connected to the bottom plate 222.

[0054] Reference Figure 1 and 4 As shown, in some embodiments, the first driving motor 31 is fixed on the second plane via a connecting seat 311 .

[0055] Reference Figure 1 and 4 As shown, in some embodiments, the torque detection assembly 30 includes a reducer 34 , which is disposed between the first drive motor 31 and the torque sensor 32 .

[0056] Exemplarily, an input end of the reducer 34 is connected to an output end of the first drive motor 31 , and the torque sensor 32 is connected to an output end of the reducer 34 .

[0057] Reference Figure 1 、 5 As shown in Figure 13, in some embodiments, a pressure detection component 40 is included, and the pressure detection component 40 includes a second support frame 41, a pressure member 42 and a pressure sensor 43. The second support frame 41 is arranged on the support seat 21, and the pressure member 42 is installed on the second support frame 41. The output end of the pressure member 42 is provided with a pressure plate 421, and the pressure sensor 43 is arranged on the side of the pressure plate 421 close to the support seat 21.

[0058] For example, the pressure member 42 may be a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, etc., and may also include a drive motor and a screw, etc. The model of the pressure sensor 43 may be SBT673, etc.

[0059] In this embodiment, after the helical gear spindle to be tested passes through the jack, the second through hole and the first through hole 11 in sequence and is inserted into the clamp seat 33, the force-applying member drives the pressure plate 421 and the pressure sensor 43 to travel a certain distance toward the support seat 21, applying pressure to the helical gear spindle to be tested, and the pressure sensor 43 performs pressure detection at this time. During the actual detection process, the helical gear spindle to be tested will undergo at least two pressure tests, and the pressure-applying member 42 drives the pressure plate 421 to increase in stroke, thereby obtaining at least two pressures. The at least two pressures are then compared with each other. When the difference between the at least two pressures is within the allowable tolerance range, it is determined to be qualified and the next helical gear spindle to be tested is tested.

[0060] In addition, when both pressure and torque testing are performed, there are two cases:

[0061] The first type: pressure detection and torque detection are respectively performed continuously or in an alternating manner. That is, when pressure detection and torque detection are respectively performed continuously, the pressure detection component 40 can first perform at least two pressure detections, and the torque detection component 30 can then perform at least two torque detections; or, the torque detection component 30 can first perform at least two torque detections, and the pressure detection component 40 can then perform at least two pressure detections. When pressure detection and torque detection are performed in an alternating manner, the pressure detection component 40 first performs the first pressure detection, and after the first pressure detection is completed, the pressure detection component 40 is away from the main shaft of the helical gear being tested, and the torque detection component 30 then performs the first torque detection; the pressure detection component 40 first performs the second pressure detection, and after the second pressure detection is completed, the pressure detection component 40 is away from the main shaft of the helical gear being tested, and the torque detection component 30 then performs the second torque detection, and so on.

[0062] The second type: the pressure detection component 40 first performs the first pressure detection. After the first pressure detection is completed, the pressure detection component 40 remains stationary and continues to apply pressure to the helical gear spindle to be tested. The torque detection component 30 then performs the first torque detection; the pressure detection component 40 first performs the second pressure detection. After the second pressure detection is completed, the pressure detection component 40 remains stationary and continues to apply pressure to the helical gear spindle to be tested. The torque detection component 30 then performs the second torque detection, and so on.

[0063] In this case, pressure testing and torque testing can more realistically simulate the working conditions of the helical gear spindle being tested, so that quality defects of the helical gear spindle being tested can be discovered in time, processed in advance, and the yield rate of the helical gear spindle being tested can be improved.

[0064] It is worth noting that the contact surface of the pressure head of the pressure sensor 43 is arc-shaped, which can reduce the contact area with the helical gear spindle being tested. Therefore, after the pressure test is completed, the pressure detection assembly 40 remains stationary and continues to apply pressure to the helical gear spindle being tested. When the torque detection assembly 30 performs torque detection on the helical gear spindle to cause the helical gear spindle to rotate, the friction force exerted by the pressure head of the pressure sensor 43 on the helical gear spindle is relatively small, allowing the helical gear spindle to rotate.

[0065] In some embodiments, the output end of the pressure member 42 is connected to the pressure plate 421 through a floating joint.

[0066] For example, the model of the floating joint may be F-M14X150F or the like.

[0067] Reference Figure 1 and 5 As shown, in some embodiments, the second support frame 41 includes a support plate 411 and a first guide coupler 412, the support plate 411 is arranged opposite to the support seat 21, the first guide coupler 412 is configured as at least one pair, the first guide couplers 412 are all arranged between the support seat 21 and the support plate 411, each pair of first guide couplers 412 are symmetrically arranged with the axis of the second through hole as the axis of symmetry, and the pressure plate 421 is connected to the first guide coupler 412.

[0068] Exemplarily, the first guide assembly 412 includes a guide rod and a guide sleeve or an optical axis and a linear bearing, etc.; the guide sleeve or the linear bearing is provided on the pressure plate 421 .

[0069] In this embodiment, when the pressure plate 421 moves in the vertical direction, the first guide member 412 can ensure the stability of the movement of the pressure plate 421.

[0070] Reference Figure 1 and 5 As shown, in some embodiments, a displacement sensor 50 is included. The displacement sensor 50 is disposed on the support seat 21 , and the displacement sensor 50 is disposed opposite to the second support frame 41 .

[0071] For example, the model of the displacement sensor 50 may be GT2-H12K or the like.

[0072] In this embodiment, the displacement sensor 50 is used to detect the stroke of the pressure plate 421, thereby ensuring that the moving distance of the pressure plate 421 is accurate and ensuring that the pressure applied to each measured helical gear spindle is the same.

[0073] Reference Figure 1 and 6 As shown, in some embodiments, a safety grating 60 is included. The safety grating 60 is arranged on the first plane, and the safety grating 60 is arranged opposite to the support seat 21.

[0074] For example, the model of the safety light curtain 60 may be E2011-0010 or the like.

[0075] In this embodiment, when pressure and / or torque is detected, the safety grating 60 detects external intruding objects or limbs, thereby ensuring pressure and / or torque or preventing the personal safety of the operator.

[0076] Reference Figure 2 and 7 As shown in Figure 12, in some embodiments, a diameter detection mechanism 70 is included. The diameter detection mechanism 70 includes a first drive coupling 71, a sliding coupling 72, a movable arm 73, a linear drive member 74 and a diameter detection assembly 75. The sliding coupling 72 is configured as at least one pair. The first drive coupling 71 and the sliding coupling 72 are both arranged on a side wall of the support seat 21. Each pair of sliding couplings 72 is symmetrically arranged with the first defined axis L1 as the symmetry axis. The movable arm 73 is connected to the sliding coupling 72. An accommodating cavity 731 is provided at one end of the movable arm 73 away from the sliding coupling 72. The linear drive member 74 is arranged in the accommodating cavity 731. A portion of the diameter detection assembly 75 extends into the accommodating cavity 731 and is connected to the output end of the linear drive member 74.

[0077] Exemplarily, the first drive coupling 71 and the sliding coupling 72 can be arranged on a side of a side wall of the support seat 21 close to the clamping seat 33, or the first drive coupling 71 and the sliding coupling 72 can be arranged on a side wall of the support seat 21 away from the clamping seat 33, and a first guide hole 211 for moving the movable arm 73 is provided on a side wall of the support seat 21. The sliding coupling 72 can include a guide rail and a slider or an optical axis and a linear bearing, etc., wherein the guide rail and the optical axis remain stationary. The diameter detection component 75 can be a diameter detector, etc.; for example, the model of the diameter detector can be LS-9030M, etc. The linear drive component 74 can be a pneumatic cylinder, a hydraulic cylinder or an electric cylinder, etc. The specific specifications are selected according to actual conditions and will not be described in detail here.

[0078] In this embodiment, the first drive assembly 71 drives the movable arm 73 via the sliding assembly 72, driving the diameter detection assembly 75 toward the helical gear main shaft to be measured, positioning the helical gear main shaft between the two detection ends of the diameter detection assembly 75. Simultaneously, the linear drive 74 pushes or pulls the diameter detection assembly 75 to fine-tune its position. Finally, the diameter detection assembly 75 detects the diameter of the helical gear main shaft to be measured.

[0079] Reference Figures 7 to 12As shown, in some embodiments, the diameter detection assembly 75 includes a shell 751, a measuring plate 752, a positioning plate 753, a second drive coupling 754, a connecting plate 755 and a feedback coupling 756. One end of the shell 751 extends into the accommodating cavity 731 and is connected to the output end of the linear drive member 74. A accommodating groove is provided at the end of the shell 751 away from the linear drive member 74. The measuring plate 752 is provided in the accommodating groove. The positioning plate 753 is connected to the end of the shell 751 away from the linear drive member 74. The second drive coupling 754 is provided in the shell 751. The shell 751 has a third plane with a second guide hole 7511 provided on the third plane. One end of the connecting plate 755 is connected to the output end of the second drive coupling 754. The other end of the connecting plate 755 passes through the second guide hole 7511 and is exposed outside the shell 751. The feedback coupling 756 is provided on the third plane. The feedback coupling 756 is arranged opposite to the connecting plate 755.

[0080] For example, feedback assembly 756 can be a displacement sensor, for example; the displacement sensor model can be GT2-H12K. Positioning plate 753 includes a back plate 7531 and a reference plate 7532. Back plate 7531 and measurement plate 752 are perpendicular to each other, and reference plate 7532 is parallel to measurement plate 752. The third plane can be the top or bottom surface of housing 751.

[0081] In this embodiment, when the measuring plate 752 and the reference plate 7532 are positioned between the helical gear spindle being measured, the linear drive member 74 drives the housing 751 toward the accommodating cavity 731, bringing the reference plate 7532 into contact with the helical gear spindle being measured. The second drive assembly 754 propels the measuring plate 752 and the connecting plate 755 toward the helical gear spindle being measured, bringing the measuring plate 752 into contact with the helical gear spindle. Simultaneously, the feedback assembly 756 detects the displacement of the connecting plate 755, thereby measuring the diameter of the helical gear spindle being measured.

[0082] The calculation formula for the diameter of the measured helical gear main shaft is: D = A - B ;

[0083] Where: D is the diameter of the main shaft of the helical gear being measured;

[0084] A The distance between the measuring plate 752 and the reference plate 7532 when the measuring plate 752 is in the receiving groove;

[0085] B is the displacement of the connecting plate 755.

[0086] Reference Figures 9-12As shown, in some embodiments, the feedback assembly 756 includes a mounting seat 7561, a magnetic core 7562, a moving rod 7563, a sleeve 7564, a winding 75641 and an elastic member 7565. The mounting seat 7561 is provided on the first plane, and a mounting hole is opened in the mounting seat 7561. The magnetic core 7562 is movably provided in the mounting hole. One end of the moving rod 7563 is connected to the connecting plate 755, and the other end of the moving rod 7563 is inserted into the mounting hole and connected to the magnetic core 7562. 62. The movable rod 7563 is provided with a step on the rod body in the mounting hole. The sleeve 7564 is provided in the mounting hole. The sleeve 7564 is arranged opposite to the magnetic core 7562. The windings 75641 are configured into multiple pairs. The multiple pairs of windings 75641 are all provided on the sleeve 7564. Each pair of windings 75641 is symmetrically arranged with the axis of the sleeve 7564 as the symmetry axis. One end of the elastic member 7565 abuts against the step, and the other end of the elastic member 7565 abuts against the side wall of the mounting hole relative to the step.

[0087] Exemplarily, the elastic member 7565 may be a spring or an elastic rubber ring.

[0088] In this embodiment, when the connecting plate 755 moves toward the mounting seat 7561, the movable rod 7563 drives the magnetic core 7562 toward the sleeve 7564, causing the elastic member 7565 to deform. As the magnetic core 7562 gradually approaches the winding 75641, the voltage of the winding 75641 gradually increases. The winding 75641 provides feedback voltage, which can reflect the displacement of the connecting plate 755.

[0089] Reference Figure 8 and 11 As shown in Figure 12, in some embodiments, at least one slide groove 7311 is provided on a pair of side walls of the accommodating cavity 731, and the housing 751 is provided with a sliding protrusion 7512 corresponding to each slide groove 7311, and the sliding protrusion 7512 is slidably engaged with the slide groove 7311.

[0090] In this embodiment, when the housing 751 moves, the sliding protrusion 7512 cooperates with the sliding groove 7311 to ensure the stability of the movement of the housing 751.

[0091] Reference Figure 9 and 12 As shown, in some embodiments, the diameter detection assembly 75 includes a second guide coupler 757, which is configured as at least one pair, each pair of second guide couplers 757 being symmetrically arranged with the second defined axis L2 as the axis of symmetry, and each second guide coupler 757 is connected to the measuring plate 752.

[0092] In this embodiment, when the measuring plate 752 moves, the second guide member 757 can ensure the stability of the movement of the measuring plate 752.

[0093] In the above description, the first drive assembly 71 can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder, and can also include a second drive motor 711, a first screw rod 712, and a nut seat 713. The second drive assembly 754 can be a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder, and can also include a third drive motor 7541, a second screw rod 7542, and a screw sleeve 7543. The first guide assembly 412 can include a guide rod and a guide sleeve, or a spline and a spline shaft, wherein the guide rod or optical axis remains stationary. The second guide assembly 757 can be a guide rod and a guide sleeve, or a guide rod and a sleeve 7564, or a spline and a spline shaft, wherein the guide sleeve, sleeve 7564, and linear bearing remain stationary.

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

Claims

1. A detection device for a helical gear spindle, characterized in that: include: The mounting plate (10) has a first plane and a second plane facing each other, wherein the first plane is provided with a first through hole (11) extending toward the second plane; A support assembly (20) comprises a support seat (21), a first support frame (22) and a profiled helical gear spindle (23), wherein the support seat (21) is arranged on the first plane, the support seat (21) is arranged corresponding to the first through hole (11), the support seat (21) has a second through hole corresponding to the first through hole (11), the first support frame (22) has a socket corresponding to the second through hole, the profiled helical gear spindle (23) is configured as at least one pair, the profiled helical gear spindle (23) is rotatably arranged in the first support frame (22), and each pair of the profiled helical gear spindles (23) are symmetrically arranged with the axis of the second through hole as a symmetry axis; A torque detection assembly (30) comprises a first drive motor (31), a torque sensor (32) and a clamping seat (33) which are sequentially arranged toward the support seat (21), wherein the first drive motor (31) is fixed to the second plane, and the torque sensor (32) and the clamping seat (33) are located inside the support seat (21); A diameter detection mechanism (70) includes a first driving member (71), a sliding member (72), a movable arm (73), a linear driving member (74) and a diameter detection assembly (75), wherein the sliding member (72) is configured as at least one pair, wherein the first driving member (71) and the sliding member (72) are both provided on a side wall of the support seat (21), and each pair of the sliding members (72) are symmetrically arranged with a first defined axis (L1) as a symmetry axis, wherein the movable arm (73) is connected to the sliding member (72), and an accommodating cavity (731) is provided at one end of the movable arm (73) away from the sliding member (72), and the diameter detection assembly ( 75) includes a shell (751), a measuring plate (752), a positioning plate (753), a second driving component (754), a connecting plate (755) and a feedback component (756), one end of the shell (751) extends into the accommodating cavity (731) and is connected to the output end of the linear driving component (74), an accommodating groove is provided at one end of the shell (751) away from the linear driving component (74), the measuring plate (752) is arranged in the accommodating groove, the positioning plate (753) is connected to one end of the shell (751) away from the linear driving component (74), and the second driving component (754) is arranged in the shell (751).

2. The detection device for a helical gear spindle according to claim 1, characterized in that: The invention comprises a pressure detection component (40), wherein the pressure detection component (40) comprises a second support frame (41), a pressure member (42) and a pressure sensor (43), wherein the second support frame (41) is arranged on the support seat (21), the pressure member (42) is mounted on the second support frame (41), a pressure plate (421) is provided at the output end of the pressure member (42), and the pressure sensor (43) is arranged on a side of the pressure plate (421) close to the support seat (21).

3. The detection device for a helical gear spindle according to claim 2, characterized in that: The second support frame (41) includes a support plate (411) and a first guide joint (412), the support plate (411) is arranged opposite to the support seat (21), the first guide joint (412) is configured as at least one pair, the first guide joints (412) are all arranged between the support seat (21) and the support plate (411), each pair of the first guide joints (412) is symmetrically arranged with the axis of the second through hole as the symmetry axis, and the pressure plate (421) is connected to the first guide joint (412).

4. The detection device for a helical gear spindle according to claim 2, characterized in that: It comprises a displacement sensor (50), wherein the displacement sensor (50) is arranged on the support seat (21), and the displacement sensor (50) is arranged opposite to the second support frame (41).

5. The detection device for a helical gear spindle according to claim 1, characterized in that: It comprises a safety grating (60), wherein the safety grating (60) is arranged on the first plane, and the safety grating (60) is arranged opposite to the support seat (21).

6. A detection device for a helical gear spindle according to any one of claims 2 to 4, characterized in that: The linear drive member (74) is disposed in the accommodating cavity (731), and a portion of the diameter detection component (75) extends into the accommodating cavity (731) and is connected to the output end of the linear drive member (74).

7. The detection device for a helical gear spindle according to claim 6, characterized in that: The shell (751) has a third plane, and a second guide hole (7511) is opened on the third plane. One end of the connecting plate (755) is connected to the output end of the second driving component (754), and the other end of the connecting plate (755) passes through the second guide hole (7511) and is exposed outside the shell (751). The feedback component (756) is arranged on the third plane, and the feedback component (756) is arranged opposite to the connecting plate (755).

8. The detection device for a helical gear spindle according to claim 7, characterized in that: The feedback assembly (756) includes a mounting seat (7561), a magnetic core (7562), a movable rod (7563), a sleeve (7564), a winding (75641) and an elastic member (7565), wherein the mounting seat (7561) is provided on the first plane, the mounting seat (7561) is provided with a mounting hole, the magnetic core (7562) is movably provided in the mounting hole, one end of the movable rod (7563) is connected to the connecting plate (755), the other end of the movable rod (7563) is inserted into the mounting hole and connected to the magnetic core (7562), and the movable rod (7563) is provided with a plurality of springs (75641) and a plurality of springs (7565). A step is provided on the rod body of the rod (7563) in the mounting hole, the sleeve (7564) is provided in the mounting hole, the sleeve (7564) is arranged opposite to the magnetic core (7562), the windings (75641) are configured into multiple pairs, and multiple pairs of windings (75641) are all provided on the sleeve (7564), and each pair of windings (75641) is symmetrically arranged with the axis of the sleeve (7564) as the symmetry axis, one end of the elastic member (7565) abuts against the step, and the other end of the elastic member (7565) abuts against the side wall of the mounting hole relative to the step.

9. The detection device for a helical gear spindle according to claim 8, characterized in that: At least one slide groove (7311) is provided on a pair of side walls of the accommodating cavity (731), and the housing (751) is provided with a sliding protrusion (7512) corresponding to each slide groove (7311), and the sliding protrusion (7512) is in sliding engagement with the slide groove (7311).

10. The detection device for a helical gear spindle according to claim 7, characterized in that: The diameter detection assembly (75) includes a second guide coupling (757), the second guide coupling (757) being configured as at least one pair, each pair of the second guide couplings (757) being symmetrically arranged with the second defined axis (L2) as a symmetry axis, and each second guide coupling (757) being connected to the measuring plate (752).

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