Hub negative clearance and vibration detection equipment

Abstract

The utility model relates to a negative clearance and vibration detection device for hubs, which comprises a feeding station, a material taking clamping jaw, a detection station, a detection station, a detection station, a detection station, a detection station, a detection station, a detection station, a detection station, a detection station and a detection station, which are sequentially arranged along a transfer mechanism, and the detection station is used for clamping hubs and placing the hubs on the transfer mechanism; the flaw detection station comprises a detection head arranged above the transfer mechanism and is used for performing flaw detection on the surface of the hub; the negative clearance detection station comprises a compaction measurement mechanism and is used for outputting different pressures to measure the negative clearance value of the bearing in the hub; the vibration detection station is used for detecting the vibration of the bearing in the hub; a blanking station; the pressing measuring mechanism comprises a pressing pipe and a height measuring instrument arranged in the pressing pipe, the height measuring instrument is arranged in the pressing pipe in a self-adaptive swinging mode, and when the height measuring instrument abuts against the inner ring of the hub inner bearing, the inclination position of the abutting end face is adjusted in a self-adaptive mode.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing detection equipment, in particular to a negative clearance and vibration detection equipment for a hub. Background Art

[0002] Negative clearance is of great significance to the service life of automobile wheel hub bearings. Studies have shown that the interference formed by reasonable axial negative clearance can improve the load-bearing capacity of the wheel hub bearing and provide a reserve for wear during the use of the bearing, thereby significantly increasing the service life of the wheel hub bearing. However, excessive negative clearance will sharply increase the heat generated by the bearing during operation, which will lead to the bearing swelling and thus quickly damage the bearing. It can be seen that the axial negative clearance of the wheel hub bearing needs to be maintained within an appropriate range, so its true value needs to be accurately measured. However, the measurement device of the existing technology is not only cumbersome to operate, but also has low measurement accuracy, which seriously affects the product quality and service life of the wheel hub bearing.

[0003] Chinese utility model patent with authorization announcement number CN218329878U discloses a wheel hub bearing negative clearance detection mechanism, comprising a bracket, a clamping and measuring mechanism, a measuring platform, a lifting mechanism, a pressure sensing mechanism, a rotating mechanism, a servo drive mechanism, and a control mechanism. The clamping and measuring mechanism is disposed at the upper end of the bracket, the measuring platform is vertically movable on the bracket via the lifting mechanism, the servo drive mechanism is connected to the lifting mechanism to drive its movement, the pressure sensing mechanism is disposed between the servo drive mechanism and the measuring platform, the wheel hub bearing is vertically disposed at the upper end of the rotating mechanism, the rotating mechanism is disposed on the measuring platform to drive the wheel hub bearing to rotate, the pressure sensing mechanism is connected to the input end of the control mechanism, and the output end of the control mechanism is connected to the servo drive mechanism. This utility model measures the height of the wheel hub bearing inner ring under different pressures by outputting different pressures from the servo mechanism, thereby determining the negative clearance value, and is simple to operate and highly accurate.

[0004] However, the detection mechanism has high requirements for the positioning of the hub bearing. It is necessary to ensure that the upper end surface of the hub bearing is on a horizontal plane so that it can form surface contact with the height measuring instrument of the pressure detection mechanism for measurement. For the detection product whose upper end surface of the hub bearing is in an inclined state, surface contact cannot be formed between the pressure detection mechanism and the detection product, and the measured data will have large errors. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model provides a negative clearance and vibration detection device for a wheel hub.

[0006] The above-mentioned problem of the present invention is solved by the following technical solutions:

[0007] A wheel hub negative clearance and vibration detection device, comprising:

[0008] The loading station includes a material-retrieving clamp for gripping the wheel hub and placing it on the transfer mechanism for transmission;

[0009] The flaw detection station includes a detection head arranged above the transfer mechanism, which is used to detect flaws on the hub surface;

[0010] The negative clearance detection station includes a pressing and measuring mechanism for outputting different pressures to measure the negative clearance value of the bearing in the wheel hub;

[0011] Vibration detection station, used to detect the vibration of the bearing inside the wheel hub;

[0012] Cutting station;

[0013] The compression measuring mechanism includes a compression tube and a height measuring instrument placed in the compression tube. The height measuring instrument is adaptively swung and arranged inside the compression tube. When it is pressed against the inner ring of the bearing in the wheel hub, the inclination position of the pressing end face is adaptively adjusted.

[0014] The above technical solution is further configured as follows: a guide rod is provided at the upper end of the height measuring instrument, and a displacement measuring pen is installed above the guide rod; and the lower end of the guide rod and the height measuring instrument are connected via spherical contact.

[0015] The above technical solution is further configured as follows: a connecting short shaft is provided at the lower end of the guide rod, the lower end of the connecting short shaft is configured as a spherical surface, the upper end surface of the height measuring instrument is provided with a movable groove that cooperates with the spherical surface, and the fixing piece passes through the fixing groove and is connected to the connecting short shaft.

[0016] The above technical solution is further configured as follows: a fixing groove is provided on the lower end surface of the height measuring instrument, the lower end of the fixing member is limited in the fixing groove, and is elastically connected to the bottom of the fixing groove via an elastic member.

[0017] The above technical solution is further configured as follows: the vibration detection station includes a plurality of vibration measuring heads arranged along the circumferential direction; the clamping assembly clamps the wheel hub and drives the bearing inside the wheel hub to rotate; and the vibration measuring heads perform vibration detection on the wheel hub.

[0018] The above technical solution is further configured as follows: the clamping assembly includes at least two groups of clamping plates capable of symmetrically clamping the wheel hub, and the clamping plate groups are provided with a vibration measuring groove capable of accommodating the vibration measuring head to extend therein.

[0019] The above technical solution is further configured as follows: the clamping plate group is sequentially stacked with a bottom plate, a middle plate and a top plate, the bottom plate and the top plate are relatively fixed, and the middle plate is driven by a clamping cylinder and can be moved out to the side;

[0020] The bottom groove formed by the two bottom plates is larger than the maximum outer diameter of the wheel hub;

[0021] The middle groove formed by the two middle plates is smaller than the maximum outer diameter of the hub.

[0022] The above technical solution is further configured as follows: the clamping assembly further includes a rotating cylinder, the rotating cylinder is connected to a rotating head, and the rotating head drives the bearing inside the wheel hub to rotate.

[0023] The above technical solution is further configured as follows: the contact heights of the multiple vibration measuring heads with the hub surface are unequal.

[0024] The above technical solution is further configured as follows: the transfer mechanism includes a horizontal transfer plate and a lifting transfer plate arranged in parallel; the horizontal transfer plate is arranged above the lifting transfer plate and is slidably connected to the lifting transfer plate via a slide rail assembly;

[0025] The lifting and transferring plate is lifted or lowered by a lifting driving member;

[0026] The horizontal transfer plate is driven in the horizontal direction by a sliding drive member.

[0027] Compared with the prior art, the beneficial effect of the present invention is that the height measuring instrument is adaptively swung inside the compression tube. When the height measuring instrument and the inner bearing of the wheel hub with an inclined upper end face are pressed against each other, the height measuring instrument adaptively swings and changes its own angle so that its lower end face is consistent with the end face of the inner bearing of the wheel hub, thereby ensuring that the height measuring instrument and the inner bearing of the wheel hub remain in a surface contact state. When outputting pressure to the inner bearing of the wheel hub, the pressure is balanced on the entire end face, and will not be concentrated on a certain point of the bearing, thereby ensuring pressure balance and making the output value accurate and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the position structure of each workstation of the utility model.

[0029] Figure 2 It is a structural diagram of the present utility model.

[0030] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0031] Figure 4 This is a structural diagram of the negative clearance detection station.

[0032] Figure 5 Schematic diagram of the exploded structure of the compression measurement mechanism.

[0033] Figure 6It is a schematic diagram of the cross-sectional structure of the compression measurement mechanism.

[0034] Figure 7 This is a structural diagram of the vibration detection station.

[0035] Figure 8 Schematic diagram of the structure of the clamping assembly.

[0036] Figure 9 Schematic diagram of the cross-sectional structure of the clamping assembly.

[0037] Figure 10 It is a structural diagram of the transfer mechanism.

[0038] Figure 11 for Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0039] In the accompanying drawings, reference numerals are as follows: 100, transfer mechanism; 110, horizontal transfer plate; 120, lifting transfer plate; 130, sliding assembly; 140, lifting drive member; 150, sliding drive member;

[0040] 200, loading station; 210, material picking claw; 220, loading rod;

[0041] 300, flaw detection station; 310, detection head;

[0042] 400, negative clearance detection station; 410, compression tube; 420, height measuring instrument; 421, fixing groove; 430, guide rod; 431, connecting short shaft; 440, displacement measuring pen; 450, fixing member; 460, elastic member; 470, mounting bracket; 480, rotating mechanism;

[0043] 500, vibration detection station; 510, vibration measuring head; 520, clamping assembly; 521, bottom plate; 522, middle plate; 523, top plate; 530, lifting platform; 531, lifting plate; 524, clamping cylinder; 525, pressing plate; 540, rotating cylinder; 511, vibration measuring drive element;

[0044] 600, blanking station; 610, push block; 620, blanking rod;

[0045] 700, wheel hub;

[0046] 800, transmission component;

[0047] 900, base;

[0048] a. Vibration measuring trough. DETAILED DESCRIPTION

[0049] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0050] like Figure 1-11 As shown, this embodiment discloses a negative clearance and vibration detection device for a wheel hub.

[0051] A negative clearance and vibration detection device for a wheel hub 700, comprising:

[0052] The loading station 200 includes a material-retrieving clamp 210 for gripping the wheel hub 700 and placing it on the transfer mechanism 100 for transmission;

[0053] The flaw detection station 300 includes a detection head 310 disposed above the transfer mechanism 100 and is used to detect flaws on the surface of the wheel hub 700;

[0054] The negative clearance detection station 400 includes a pressing and measuring mechanism for outputting different pressure measurement negative clearance values ​​of the bearing in the hub 700;

[0055] The vibration detection station 500 is used to detect the vibration of the bearing inside the wheel hub 700;

[0056] Cutting station 600;

[0057] The clamping measuring mechanism includes a clamping tube 410 and a height measuring instrument 420 placed in the clamping tube 410. The height measuring instrument 420 is adaptively swingingly arranged inside the clamping tube 410, and when it is pressed against the inner ring of the bearing in the wheel hub 700, it adaptively adjusts the inclination position of the pressing end face.

[0058] The above is the basic solution of this embodiment.

[0059] Specific reference Figure 1 and Figure 2 As shown, the transfer mechanism 100 transfers the hub 700 in the horizontal direction, and each station is arranged in sequence along the transfer direction;

[0060] The wheel hub 700 is loaded at the loading station 200, and the picking claw 210 clamps the wheel hub 700 and places it on the transfer mechanism 100. The moving mechanism transfers the wheel hub 700 to the flaw detection station 300. The detection head 310 on the flaw detection station 300 detects the outer surface of the wheel hub 700 to see if there are any scratches, and feeds back the detection results to the equipment control system; after the flaw detection is completed, the transfer mechanism 100 transfers the wheel hub 700 to the negative clearance detection station 400. The pressing and measuring mechanism of the negative clearance detection station 400 presses the bearing inside the wheel hub 700 and measures the negative clearance value under the pressure; after the negative clearance detection, the transfer mechanism 100 transfers the wheel hub 700 to the vibration detection station 500, and performs vibration detection on the bearing inside the wheel hub 700 during rotation; after the above detection is completed, the transfer mechanism 100 transfers the wheel hub 700 to the unloading station 600 for unloading.

[0061] Reference Figure 3 As shown, in this embodiment, a loading rod 220 is provided on the loading station 200, and the wheel hub 700 is lifted to the loading height by the loading rod 220, and the material picking claw 210 clamps the wheel hub 700 on the material picking rod to pick up the material, and moves the wheel hub 700 under the action of the transfer mechanism 100.

[0062] In this embodiment, a conveying assembly 800 is provided on both the loading station 200 and the flaw detection station 300, and the conveying assembly 800 is a conventional lifting mechanism and a horizontal moving mechanism, and its specific method is not described here.

[0063] In this embodiment, the detection head 310 is an eddy current flaw detection probe.

[0064] In this embodiment, the detection method of the negative clearance detection station 400 is consistent with the negative clearance detection method in the prior art. Both adopt different pressure outputs to the bearing inside the wheel hub 700 to measure the height of the inner ring of the bearing inside the wheel hub 700 under different pressures, thereby obtaining the value of the negative clearance. The specific implementation method will not be repeated here.

[0065] Different from the prior art, in this embodiment, the height measuring instrument 420 is adaptively swung and arranged inside the compression tube 410. When the height measuring instrument 420 is pressed against the inner bearing of the wheel hub 700 with an inclined upper end face, the height measuring instrument 420 adaptively swings and changes its own angle so that its lower end face is consistent with the end face of the inner bearing of the wheel hub 700, thereby ensuring that the height measuring instrument 420 and the inner bearing of the wheel hub 700 remain in a surface contact state. When outputting pressure to the inner bearing of the wheel hub 700, the pressure is balanced on the entire end face instead of being concentrated on a certain point of the bearing, thereby ensuring pressure balance and making the output value accurate and reliable.

[0066] Specifically, in this embodiment, a guide rod 430 is provided at the upper end of the height measuring instrument 420 , and a displacement measuring pen 440 is installed above the guide rod 430 ; the lower end of the guide rod 430 and the height measuring instrument 420 are connected via spherical contact.

[0067] Specific reference Figure 4 As shown, the guide rod 430 connects the displacement measuring pen 440 and the height measuring instrument 420. The displacement measuring pen 440 is located above the guide rod 430. The lower end of the guide rod 430 extends into the interior of the compression tube 410 and is connected to the height measuring instrument 420. The height measuring instrument 420 can swing along the spherical surface.

[0068] During measurement, the lower end face of the compression tube 410 presses against the outer ring of the bearing inside the wheel hub 700, and the inner ring of the bearing inside the wheel hub 700 extends into the compression tube 410 and contacts the height measuring instrument 420. During the measurement process, the guide rod 430 is always in a vertical state, and only the height measuring instrument 420 is adaptively adjusted according to the end face angle of the wheel hub 700.

[0069] Specifically, the lower end of the guide rod 430 is provided with a connecting short shaft 431, the lower end of the connecting short shaft 431 is set to a spherical surface, the upper end surface of the height measuring instrument 420 is provided with a movable groove that cooperates with the spherical surface, and the fixing member 450 passes through the fixing groove 421 and is connected to the connecting short shaft 431.

[0070] Reference Figure 5 As shown, in this embodiment, the lower end of the connecting short shaft 431 is set to a spherical surface, and for the convenience of connection, the bottom of the sphere is horizontally cut into a plane; and the side wall of the movable groove on the height measuring instrument 420 is set with an arc surface that matches the spherical surface, so that the sphere can rotate around the central axis or swing freely in the movable groove, thereby meeting the adaptive adjustment of the height measuring instrument 420.

[0071] In order to ensure the stable connection of the height measuring instrument 420 during swinging and smooth adjustment, in this embodiment, the lower end face of the height measuring instrument 420 is provided with a fixing groove 421, and the lower end of the fixing member 450 is limited in the fixing groove 421 and is elastically connected to the bottom of the fixing groove 421 through an elastic member 460.

[0072] Specific reference Figure 4 and Figure 5 As shown, the fixing member 450 is a connecting screw, the bolt head of the connecting screw is limited in the fixing groove 421, and is elastically connected to the bottom of the fixing groove 421;

[0073] Preferably, in this embodiment, the elastic member 460 is a spring, which is sleeved on the screw portion of the connecting screw so that both ends of the spring abut against the bottom of the fixing groove 421 and the bolt head; the screw of the connecting screw passes through the bottom of the fixing groove 421 and is fixed to the connecting short shaft 431 on the guide rod 430;

[0074] Based on the above arrangement, the height measuring instrument 420 and the connecting short shaft 431 are connected in a limited and movable manner, and the height measuring instrument 420 can swing or rotate relative to the lower end of the connecting short shaft 431 .

[0075] In this embodiment, a mounting bracket 470 is provided on the negative clearance detection station 400 , and the pressing measurement mechanism is arranged on the mounting bracket 470 .

[0076] In this embodiment, a rotating mechanism 480 is further provided on the negative clearance detection station 400. The rotating mechanism 480 drives the bearing in the wheel hub 700 to rotate, so as to facilitate multi-directional measurement of the bearing.

[0077] The rotating mechanism 480 can be a driving member that directly drives the base 900 supporting the hub 700 to rotate, or transmits the rotation through a gear set or a pulley to rotate the base 900. Its specific structure is consistent with the rotating structure in the prior art and will not be described in detail here.

[0078] The specific implementation of the vibration detection station 500 is as follows: the vibration detection station 500 includes a plurality of vibration measuring heads 510 arranged along the circumferential direction, the clamping assembly 520 clamps the wheel hub 700 and drives the bearing inside the wheel hub 700 to rotate, and the vibration measuring heads 510 perform vibration detection on the wheel hub 700.

[0079] Specific reference Figure 7 As shown, in this embodiment, the clamping assembly 520 clamps the wheel hub 700 and drives the bearing inside the wheel hub 700 to rotate. The vibration measuring head 510 abuts against the outer periphery of the wheel hub 700, receives the amplitude of the bearing rotation, and transmits the amplitude signal to the equipment control system, which is calculated and judged by the staff.

[0080] Specifically, the clamping assembly 520 includes at least two groups of clamping plates that can symmetrically clamp the wheel hub 700 , and the clamping plate groups are provided with a vibration measuring groove a that can accommodate the vibration measuring head 510 to extend into.

[0081] In this embodiment, the vibration detection station 500 is provided with a lifting platform 530, and the clamping assembly 520 is arranged on the lifting platform 530, specifically the clamping plate group is arranged on the lifting platform 530, and the lifting platform 530 drives the clamping plate group to move downward to the position of the wheel hub 700, clamps the wheel hub 700, and then drives the clamping plate group to lift to the detection position. At this detection position, the vibration measuring pen can extend into the interior of the clamping assembly 520 through the vibration measuring groove a and contact the outer surface of the wheel hub 700; when the inner circumference of the wheel hub 700 rotates under the action of the clamping assembly 520, the vibration measuring pen can receive the amplitude or vibration frequency of the bearing.

[0082] Preferably, in this embodiment, the vibration measuring groove a is connected to the interior of the clamping plate group along the horizontal direction.

[0083] Preferably, in this embodiment, the contact heights between the plurality of vibration measuring heads 510 and the surface of the hub 700 are unequal.

[0084] In this embodiment, three vibration measuring heads 510 are provided, and the three vibration measuring heads 510 extend into the vibration measuring slot a and contact the surface of the wheel hub 700, and the heights of the contact positions are not equal, thereby receiving the amplitude or vibration frequency of the bearing at different positions, making the test results more accurate.

[0085] This embodiment is unrelated to the vibration measurement principle of the vibration stylus: it utilizes the piezoelectric effect of quartz crystal and artificially polarized zircon (PZT). When mechanical stress is applied to the quartz crystal or artificially polarized zircon, an electric charge is generated on its surface. A piezoelectric accelerometer is used to convert the vibration signal into an electrical signal. By processing and analyzing the input signal, the vibration acceleration, velocity, and displacement values ​​are displayed, and the corresponding measured values ​​can be printed out on a printer.

[0086] In this embodiment, the structure of the lifting platform 530 is consistent with the lifting platform 530 in the prior art, and the specific structure is not described here in detail.

[0087] Specifically, the clamping plate group is sequentially stacked with a bottom plate 521, a middle plate 522 and a top plate 523. The bottom plate 521 and the top plate 523 are relatively fixed. The middle plate 522 is driven by a clamping cylinder 524 and can be moved out to the side.

[0088] The bottom groove formed by the two bottom plates 521 is larger than the maximum outer diameter of the hub 700;

[0089] The middle groove formed by the two middle plates 522 is smaller than the maximum outer diameter of the hub 700 .

[0090] Specific reference Figure 8 and Figure 9As shown, the clamping cylinder 524 is fixed on the top plate 523, and the output shaft drives the middle plate 522 below through the connecting block, pulling the middle plate 522 out to the side to increase the middle groove between the two middle plates 522;

[0091] A bottom groove is formed between the two bottom plates 521. The inner diameter of the bottom groove is larger than the maximum outer diameter of the wheel hub 700. The wheel hub 700 can extend into the middle groove through the bottom groove.

[0092] When the clamping assembly 520 moves downward, the clamping cylinder 524 pulls the two middle plates 522 out to the sides, making the space between the two middle plates 522 larger than the maximum outer diameter of the hub 700. During clamping, the hub 700 extends between the two middle plates 522, and the clamping cylinder 524 drives the two middle plates 522 inward to form a middle groove with an inner diameter smaller than the maximum outer diameter of the hub 700. The outer edge of the hub 700 is supported on the upper end surfaces of the two middle plates 522.

[0093] Preferably, in this embodiment, a pressing piece 525 that is consistent with the edge of the middle plate 522 is further provided on the upper end surface of the two middle plates 522 .

[0094] When the clamping assembly 520 clamps the wheel hub 700 , the pressing piece 525 presses against the lower end surface of the outer edge of the wheel hub 700 .

[0095] In this embodiment, the clamping assembly 520 further includes a rotating cylinder 540 , and a head is connected to the rotating cylinder 540 , and the rotating head drives the bearing in the wheel hub 700 to rotate.

[0096] Reference Figure 7 As shown, in this embodiment, the rotating cylinder 540 is arranged on the lifting plate 531 of the lifting platform 530, and the clamping plate group is arranged below the lifting plate 531. The rotating cylinder 540 and the clamping plate group move simultaneously with the lifting plate 531; when the lifting plate 531 drives the clamped wheel hub 700 to lift up to the testing position, the vibration measuring pen is extended into the vibration measuring groove a under the action of the vibration measuring drive part 511, thereby contacting the surface of the wheel hub 700.

[0097] A rotating head is provided at the lower end of the lifting plate 531, and the rotating head is driven to rotate by the rotating cylinder 540; the wheel hub 700 is lifted to the detection position under the action of the lifting platform 530, so that the bearing in the wheel hub 700 is limitedly connected with the rotating head, and the rotating head drives the bearing to rotate.

[0098] In this embodiment, in order to transfer the wheel hub 700 horizontally and lift it vertically, the transfer mechanism 100 includes a horizontal transfer plate 110 and a lifting transfer plate 120 arranged in parallel. The horizontal transfer plate 110 is arranged above the lifting transfer plate 120 and is slidably connected to the lifting transfer plate 120 via a slide rail assembly.

[0099] The lifting and transferring plate 120 is lifted or lowered by the lifting driving member 140;

[0100] The horizontal transfer plate 110 is driven in the horizontal direction by a sliding drive member 150 .

[0101] Specific reference Figure 10 As shown, the lifting transfer plate 120 is provided with a plurality of station holes capable of accommodating the hub 700 to be lifted and passed through, and each station hole corresponds to each station, and a base 900 is provided above the station hole through a push rod;

[0102] The horizontal transfer plate 110 includes two transfer rods connected at both ends by a gantry, and a clamping groove is formed between the two transfer rods for clamping and transferring the wheel hub 700;

[0103] The lifting drive member 140 is provided at both ends of the lifting transfer plate 120 to lift and lower the lifting transfer plate 120;

[0104] The sliding drive member 150 is provided on the side to move the horizontal transfer plate 110 in the horizontal direction;

[0105] The lower end surface of the horizontal transfer plate 110 and the upper end surface of the lifting transfer plate 120 are slidably connected via slide rail assemblies on both sides.

[0106] In this embodiment, the sliding drive member 150 and the lifting drive member 140 are preferably air cylinders or oil cylinders.

[0107] In this embodiment, the structure of the slide rail assembly, the driving method of the jacking drive 140 and the sliding drive 150, and the connection method between the lifting transfer plate 120 and the horizontal transfer plate 110 are consistent with the prior art and will not be repeated here.

[0108] The unloading method in this embodiment is that the horizontal transfer plate 110 transfers the wheel hub 700 that has completed the inspection to the unloading station 600. A unloading rod 620 is provided at the unloading station 600. The wheel hub 700 is placed on the base 900 on the unloading rod 620. The horizontal transfer rod moves horizontally out of the unloading station 600, and the unloading rod 620 descends to make the wheel hub 700 descend to the unloading position. The unloading push block 610 pushes the wheel hub 700 out of the unloading station 600. Figure 11 shown.

[0109] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A wheel hub negative clearance and vibration detection device, comprising: The loading station (200) includes a material-taking clamp (210) for clamping the wheel hub (700) and placing it on the transfer mechanism (100) for transmission; A flaw detection station (300) includes a detection head (310) disposed above the transfer mechanism (100) and used for performing flaw detection on the surface of the wheel hub (700); A negative clearance detection station (400) includes a pressing and measuring mechanism for outputting different negative clearance values ​​of the bearing in the pressure measuring hub (700); A vibration detection station (500) is used to detect the vibration of the bearing inside the wheel hub (700); Cutting station (600); The invention is characterized in that the compression measuring mechanism comprises a compression tube (410) and a height measuring instrument (420) disposed in the compression tube (410); the height measuring instrument (420) is adaptively swingingly disposed inside the compression tube (410) and adaptively adjusts the tilt position of the pressing end face when pressing against the inner ring of the bearing in the wheel hub (700).

2. The wheel hub negative clearance and vibration detection device according to claim 1, characterized in that: A guide rod (430) is provided at the upper end of the height measuring instrument (420), and a displacement measuring pen (440) is installed above the guide rod (430); the lower end of the guide rod (430) and the height measuring instrument (420) are connected via spherical contact.

3. The wheel hub negative clearance and vibration detection device according to claim 2, characterized in that: The lower end of the guide rod (430) is provided with a connecting short shaft (431), the lower end of the connecting short shaft (431) is set as a spherical surface, the upper end surface of the height measuring instrument (420) is provided with a movable groove that matches the spherical surface, and the fixing member (450) passes through the fixing groove (421) and is connected to the connecting short shaft (431).

4. The wheel hub negative clearance and vibration detection device according to claim 3, characterized in that: The lower end surface of the height measuring instrument (420) is provided with a fixing groove (421), and the lower end of the fixing member (450) is limited in the fixing groove (421) and elastically connected to the bottom of the fixing groove (421) via an elastic member (460).

5. The wheel hub negative clearance and vibration detection device according to claim 1, characterized in that: The vibration detection station (500) comprises a plurality of vibration measuring heads (510) arranged in a circumferential direction; a clamping assembly (520) clamps the wheel hub (700) and drives the bearing in the wheel hub (700) to rotate; and the vibration measuring heads (510) perform vibration detection on the wheel hub (700).

6. The wheel hub negative clearance and vibration detection device according to claim 5, characterized in that: The clamping assembly (520) comprises at least two clamping plate groups capable of symmetrically clamping the wheel hub (700), and the clamping plate groups are provided with a vibration measuring groove (a) capable of accommodating the vibration measuring head (510) to extend therein.

7. The wheel hub negative clearance and vibration detection device according to claim 6, characterized in that: The clamping plate group is sequentially stacked with a bottom plate (521), a middle plate (522) and a top plate (523); the bottom plate (521) and the top plate (523) are relatively fixed; the middle plate (522) is driven by a clamping cylinder (524) and can be moved to the side; The bottom groove formed by the two bottom plates (521) is larger than the maximum outer diameter of the wheel hub (700); The middle groove formed by the two middle plates (522) is smaller than the maximum outer diameter of the hub (700).

8. The wheel hub negative clearance and vibration detection device according to claim 6, characterized in that: The clamping assembly (520) further comprises a rotating cylinder (540), wherein a rotating head is connected to the rotating cylinder (540), and the rotating head drives the bearing inside the wheel hub (700) to rotate.

9. The wheel hub negative clearance and vibration detection device according to any one of claims 5 or 6, characterized in that: The contact heights between the plurality of vibration measuring heads (510) and the surface of the hub (700) are unequal.

10. The wheel hub negative clearance and vibration detection device according to claim 1, characterized in that: The transfer mechanism (100) includes a horizontal transfer plate (110) and a lifting transfer plate (120) arranged in parallel; the horizontal transfer plate (110) is arranged above the lifting transfer plate (120) and is slidably connected to the lifting transfer plate (120) via a slide rail assembly (130); The lifting and transferring plate (120) is lifted or lowered by a lifting driving member (140); The horizontal transfer plate (110) is driven in the horizontal direction by a sliding drive member (150).

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