Cover separating coaxiality detection device and detection and alignment method thereof

Abstract

The invention discloses a cover separation coaxiality detection device and a detection and alignment method thereof, and aims to provide a device which is good in universality, can be suitable for centering quantitative detection of inner holes of cover leakage seats of covers of various shapes and positioning holes of a conveyor belt, so that the positions of the inner holes of the cover leakage seats and the positioning holes of the conveyor belt are accurately adjusted to be aligned, and the detection accuracy is improved. According to the cover separating coaxiality detection device and the detection and alignment method thereof, the stability of a lower cover is effectively improved. The cover separating coaxiality detection device comprises a detection tool which is provided with a straight groove and a circular hole; the detection device comprises a bottom frame which is positioned at the upper end of the leakage cover seat through a positioning structure; the sliding seat is slidably arranged on the bottom frame in the horizontal direction, a shaft seat is rotatably arranged on the sliding seat, and the sliding seat and the bottom frame are positioned through a pin hole structure; the sliding block is slidably connected to the shaft seat along the radial direction of the shaft seat rotating shaft; the upper end of the vertical rod is provided with a dial indicator; and the measuring assembly comprises a measuring rod arranged at the lower end of the vertical rod in a sliding manner, and the measuring rod is linked with a measuring head of a dial indicator.

Description

Technical Field

[0001] The invention relates to the technical field of separate cover in the packaging industry, and in particular to a separate cover coaxiality detection device and a detection and alignment method thereof. Background Art

[0002] In the metal packaging industry, canned food and other food packaging use a large number of easy-open lid packaging, resulting in a large amount of easy-open lids, which is a large-scale industrial production. When producing easy-open lids, the stacked lid blanks (the lid blanks are stacked from bottom to top in the inner hole of the lid-leaking seat of the lid-separating device) need to be divided into pieces and sent into the positioning holes of the flexible conveyor belt, and then sent step by step by the flexible conveyor belt into the forming molds of each station for riveting, scoring, riveting and pulling ring forming. When the production line is running fast, whether the cover blanks can be stably and reliably separated into the positioning holes of the flexible conveyor belt one by one is the key to determining whether the easy-open cover can be produced normally; and whether the inner hole of the cover seat of the cover separation device is aligned with the positioning hole of the flexible conveyor belt directly determines the accuracy of the cover blanks being separated into the positioning holes of the flexible conveyor belt during cover separation. The more accurately the inner hole of the cover seat is aligned with the positioning hole of the flexible conveyor belt, the more accurate the cover separation and the more stable the production. Otherwise, the cover blanks are easily separated obliquely, resulting in the cover blanks being unable to fall into the positioning holes to complete the positioning. In the mildest case, the cover blanks are deformed by the workstation mold, and in the worst case, the cover is stuck and damages the flexible conveyor belt, machines and other equipment.

[0003] At present, the coaxiality between the cap separation device and the positioning hole of the flexible conveyor belt cannot be detected because the conveyor belt is made of rubber and its flexible hole wall cannot be detected. The current alignment method is to make a stepped alignment core rod according to the shape of the inner hole of the leaking cap seat and the positioning hole of the flexible conveyor belt, and use this alignment core rod to insert from the inner hole of the leaking cap seat and then insert it into the flexible positioning hole to align the position of the inner hole of the leaking cap seat; at present, this method often has the problem of poor coaxial alignment accuracy between the inner hole of the leaking cap seat and the positioning hole of the flexible conveyor belt, and the alignment operation is difficult. Specifically, if the centering core rod and the inner hole of the drain cover seat fit too tightly, it is difficult to move the core rod and the alignment operation is difficult; if the centering core rod and the inner hole of the drain cover seat fit too loosely, the alignment accuracy will be poor, resulting in poor coaxiality between the inner hole of the drain cover seat and the positioning hole of the flexible conveyor belt; on the other hand, when the centering core rod is inserted into the positioning hole of the flexible conveyor belt, is it inserted naturally or inserted through the deformation of the flexible conveyor belt (if inserted through the deformation of the flexible conveyor belt, the coaxiality between the inner hole of the drain cover seat and the positioning hole of the flexible conveyor belt is poor)? Due to space limitations, it is impossible to observe and can only be evaluated by the operator's feeling and judgment, so the effect is not good, and repeated adjustments and verifications are required, which is labor-intensive and time-consuming, and the alignment operation is difficult. Summary of the invention

[0004] The purpose of the present invention is to provide a cover coaxiality detection device and its detection and alignment method which has good versatility and can be applied to quantitative detection of the alignment between the inner hole of a leaky cover seat and the positioning hole of a conveyor belt of covers of various shapes, thereby accurately adjusting the alignment between the inner hole of the leaky cover seat and the positioning hole of the conveyor belt and effectively improving the stability of the lower cover.

[0005] The technical solution of the present invention is: A device for detecting the coaxiality of a sub-cover, characterized in that it comprises: Inspection fixture, with straight slots and round holes; The detection device comprises: The bottom frame is positioned on the upper end of the drain cover seat through the positioning structure; A slide seat is arranged on the base frame for sliding along the horizontal direction, and an axle seat is rotatably arranged on the slide seat. The axle seat rotating shaft is vertically distributed. The slide seat and the base frame are positioned by a pin hole structure, and the axle seat can be locked by a locking member. The slider is connected to the shaft seat by sliding along the radial direction of the shaft seat rotating shaft, and the slider is locked by the shaft seat bolt; A vertical rod on the slider is arranged to slide vertically, a dial indicator is arranged on the upper end of the vertical rod, and the vertical rod is locked by a slider bolt; The measuring assembly comprises a measuring rod arranged along the lower end of a vertical rod for sliding, the measuring rod can be moved into a straight groove and a round hole, the measuring rod is linked with a measuring head of a dial indicator, and the sliding stroke of the measuring rod is measured by the dial indicator.

[0006] The specific use method of the coaxiality detection device of the present scheme refers to the detection and alignment method of the coaxiality detection device of the sub-covers described below, which positions the detection tool in the positioning hole of the conveyor belt, and positions the chassis of the detection device at the upper end of the leaky cover seat through the positioning structure, and detects the parallelism between the sliding direction of the slide seat and the straight groove, and then detects the coaxiality between the shaft seat rotating shaft and the circular hole (equivalent to measuring the alignment of the inner hole of the leaky cover seat and the positioning hole of the conveyor belt through the parallelism of the two straight lines and the coincidence of the two points), to align the inner hole of the leaky cover seat and the positioning hole. Specifically, The slide is used to drive the measuring rod to slide in the straight groove. During this process, the end of the measuring rod is kept against the side wall of the straight groove. If the sliding direction of the slide is not parallel to the straight groove, the measuring rod will slide. The sliding stroke of the measuring rod can be measured by a dial indicator to quantify the parallelism between the sliding direction of the slide and the straight groove. If the reading of the dial indicator falls within the set range, it means that the parallelism between the sliding direction of the slide and the straight groove is qualified; if the reading of the dial indicator exceeds the set range, it means that the parallelism between the sliding direction of the slide and the straight groove is unqualified, thereby realizing the quantitative detection of the parallelism between the sliding direction of the slide and the straight groove. If the parallelism between the sliding direction of the slide and the straight groove is unqualified, the position of the drain cover seat is adjusted, and then measured again until the parallelism between the sliding direction of the slide and the straight groove meets the set requirements. When the parallelism between the sliding direction of the slide and the straight groove meets the set requirements, the inner hole of the drain cover seat and the positioning hole can be aligned only by translating the drain cover seat (without rotating the drain cover seat), that is, the inner hole of the drain cover seat and the positioning hole can be aligned only by translating the drain cover seat.

[0007] After the parallelism between the sliding direction of the slide and the straight groove reaches the set requirements, move the measuring rod into the circular hole and press the measuring rod against the inner wall of the circular hole; then, rotate the shaft seat for at least one circle, during which the end of the measuring rod remains against the inner wall of the circular hole. If the shaft seat and the circular hole are not coaxial, the measuring rod will slide. The sliding stroke of the measuring rod can be measured by a dial indicator to quantify the coaxiality between the shaft seat and the circular hole. If the reading of the dial indicator falls within the set range, it means that the coaxiality between the shaft seat shaft and the circular hole is qualified; if the reading of the dial indicator exceeds the set range, it means that the coaxiality between the shaft seat shaft and the circular hole is unqualified, thereby realizing the quantitative detection of the coaxiality between the shaft seat shaft and the circular hole. If the coaxiality between the shaft seat shaft and the circular hole is unqualified, adjust the position of the leak cover seat and measure again until the coaxiality between the shaft seat shaft and the circular hole meets the set requirements.

[0008] When the parallelism between the sliding direction of the slide and the straight groove reaches the set requirements, and the coaxiality between the shaft seat rotating shaft and the circular hole reaches the set requirements, the inner hole of the drain cover seat is aligned with the positioning hole of the conveyor belt, thereby accurately adjusting the alignment of the inner hole of the drain cover seat and the positioning hole of the conveyor belt, effectively improving the stability of the lower cover.

[0009] At the same time, since the parallelism between the sliding direction of the slide seat and the straight groove (equivalent to the parallelism of two straight lines) is detected, and then the coaxiality between the shaft seat rotating shaft and the circular hole (equivalent to the coincidence of two points) is detected, the inner hole of the drain cover seat and the positioning hole are detected and aligned. Therefore, it has good versatility and can be applied to the quantitative detection of the centering of the inner hole of the drain cover seat of covers of various shapes and the positioning hole of the conveyor belt, and the position of the inner hole of the drain cover seat and the positioning hole of the conveyor belt can be accurately adjusted according to the results of the quantitative detection, thereby effectively improving the stability of the lower cover.

[0010] Preferably, when the inner hole of the drain cover seat is aligned with the positioning hole, the detection tooling is positioned in the positioning hole of the conveyor belt, and the base frame of the detection device is positioned at the upper end of the drain cover seat through the positioning structure, the sliding direction of the slide seat is parallel to the straight groove; if the slide seat and the base frame are positioned through the pin hole structure at this time, the shaft seat rotating shaft is coaxial with the circular hole.

[0011] Preferably, a measuring seat is provided at the lower end of the vertical rod, and the measuring rod is slidably arranged on the measuring seat; The measurement kit also includes: A steering member is rotatably arranged on the measuring seat, and the end of the measuring rod abuts against the steering member; The sliding rod and the first spring are arranged on the vertical rod along the vertical sliding direction. The lower end of the sliding rod moves downward under the action of the first spring and abuts against the steering member, and the upper end of the sliding rod abuts against the probe of the dial gauge. In this way, in the process of detecting the parallelism between the sliding direction of the slide and the straight groove and the coaxiality between the shaft seat rotating shaft and the round hole, the sliding stroke of the measuring rod can be transmitted to the probe of the dial gauge through the steering member and the sliding rod, so that the sliding stroke of the measuring rod can be measured by the dial gauge, thereby realizing the quantitative detection of the parallelism between the sliding direction of the slide and the straight groove and the quantitative detection of the coaxiality between the shaft seat rotating shaft and the round hole.

[0012] Preferably, the locking member includes an eccentric wheel rotatably arranged on the slide seat and a handle for driving the eccentric wheel to rotate, the rotation axis of the eccentric wheel is parallel to the rotation axis of the shaft seat, and the eccentric wheel can be pressed against or separated from the outer side surface of the shaft seat by rotation. In this way, the eccentric wheel can be driven to rotate by the handle so that the eccentric wheel presses the shaft seat, thereby locking the shaft seat on the slide seat so that the shaft seat cannot rotate; the eccentric wheel can also be driven to rotate by the handle so that the eccentric wheel is separated from the shaft seat, thereby releasing the lock on the shaft seat so that the shaft seat can rotate smoothly. The operation is convenient and quick, and the shaft seat locking is stable and reliable.

[0013] Preferably, the pin hole structure includes a limiting hole arranged in the middle of the upper surface of the base frame, a pin hole arranged on the slide seat, and a positioning pin inserted in the pin hole.

[0014] Preferably, it also includes a pushing bolt and a second spring, which are located on opposite sides of the slider, and the pushing bolt is connected to the shaft seat through a thread. The sliding directions of the pushing bolt and the slider are parallel, and the slider moves toward the pushing bolt under the action of the second spring and rests against the end of the pushing bolt.

[0015] Preferably, the detection tooling includes a tooling body, the lower surface of the tooling body is provided with a positioning boss matching the positioning hole of the conveyor belt, the straight groove and the round hole are arranged in the middle of the upper surface of the tooling body, and the round hole intersects with the straight groove or the round hole is located on the bottom surface of the straight groove. In this way, the detection tooling can be positioned in the positioning hole on the conveyor belt by matching the positioning boss with the positioning hole on the conveyor belt to determine the positions of the straight groove and the round hole.

[0016] Preferably, the positioning structure comprises a groove positioning portion and a protrusion positioning portion, one of which is arranged on the upper end surface of the drain cover seat, and the other is arranged on the base frame.

[0017] Preferably, the raised positioning part is arranged on the chassis, and the raised positioning part includes a cross-shaped horizontal linear projection and a longitudinal linear projection; the groove positioning part corresponding to the raised positioning part includes four front, rear, left and right positioning grooves arranged on the upper end surface of the drain cover seat, wherein the horizontal linear projection cooperates with the left and right positioning grooves, and the longitudinal linear projection cooperates with the front and rear positioning grooves; when the chassis of the detection device is positioned at the upper end of the drain cover seat through the positioning structure, and the slide seat and the chassis are positioned through the pin hole structure, the rotating shaft of the shaft seat passes through the intersection of the cross-shaped horizontal linear projection and the longitudinal linear projection. In this way, it is convenient for actual processing and manufacturing, and the positioning structure has good versatility and can be applied to drain cover seats of covers of various shapes.

[0018] A detection and alignment method using a cover coaxiality detection device, comprising: First, position the detection tooling in the positioning hole of the conveyor belt, and position the bottom frame of the detection device on the upper end of the leak cover seat through the positioning structure; Second, move the measuring rod into the straight slot through the vertical rod, and then lock the vertical rod; Turn the shaft seat so that the measuring rod faces the side wall of the straight groove, and then lock the shaft seat; Move the slider to make the measuring rod press against the side wall of the straight groove, and then lock the slider; Third, the slide drives the measuring rod to slide in the straight groove. During this process, the parallelism between the sliding direction of the slide and the straight groove can be measured by a dial indicator. If the parallelism between the sliding direction of the slide and the straight groove is not up to standard, adjust the position of the drain cover seat and then return to the third step until the parallelism between the sliding direction of the slide and the straight groove meets the set requirements.

[0019] As a preference, it also includes: Fourth, unlock the slider, shaft seat and vertical rod; Move the slide to position the slide and the base frame through the pin hole structure; Move the measuring rod into the circular hole through the vertical rod, and then lock the vertical rod; Move the slider to make the measuring rod press against the inner wall of the circular hole, and then lock the slider; Fifth, rotate the shaft seat at least one circle. During this process, the coaxiality between the shaft seat shaft and the circular hole can be measured by a dial indicator. If the coaxiality between the shaft seat shaft and the circular hole is unqualified, adjust the position of the drain cover seat and then return to step 5 until the coaxiality between the shaft seat shaft and the circular hole meets the set requirements.

[0020] When the parallelism between the sliding direction of the slide and the straight groove reaches the set requirements, and the coaxiality between the shaft seat rotating shaft and the circular hole reaches the set requirements, the inner hole of the drain cover seat is aligned with the positioning hole of the conveyor belt, thereby accurately adjusting the alignment of the inner hole of the drain cover seat and the positioning hole of the conveyor belt, effectively improving the stability of the lower cover.

[0021] At the same time, since the parallelism between the sliding direction of the slide seat and the straight groove is detected (equivalent to the parallelism of two straight lines), and then the coaxiality between the shaft seat rotating shaft and the circular hole is detected (equivalent to the coincidence of two points), the inner hole of the drain cover seat and the positioning hole are detected and aligned. Therefore, it can be suitable for the quantitative detection of the centering of the inner hole of the drain cover seat of covers of various shapes and the positioning hole of the conveyor belt, and the position of the inner hole of the drain cover seat and the positioning hole of the conveyor belt can be accurately adjusted according to the results of the quantitative detection, thereby effectively improving the stability of the lower cover.

[0022] The beneficial effects of the present invention are: good versatility, and can be applied to quantitative detection of the alignment between the inner hole of the leaky cover seat of covers of various shapes and the positioning hole of the conveyor belt, so as to accurately adjust the position of the inner hole of the leaky cover seat and the positioning hole of the conveyor belt, and effectively improve the stability of the lower cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a detection device of a separate cover coaxiality detection device of the present invention.

[0024] Figure 2 It is a top view of a detection device of a separate cover coaxiality detection device of the present invention.

[0025] Figure 3 yes Figure 2 Schematic diagram of a cross-sectional structure at AA in the middle.

[0026] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle.

[0027] Figure 5 It is a three-dimensional structural schematic diagram of a detection tool of a cover coaxiality detection device of the present invention.

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the drain cover seat of the present invention.

[0029] Figure 7 The present invention is a partial structural schematic diagram of a device for detecting coaxiality of a separate cover during actual use.

[0030] In the figure: Detection device 1, chassis 1.0, linear guide 1.1, slide seat 1.2, pin hole structure 1.3, limit hole 1.31, positioning pin 1.32, shaft seat 1.4, shaft seat through hole 1.41, slider 1.5, shaft seat bolt 1.6, vertical rod 1.7, measuring seat 1.71, dial indicator 1.8, side head 1.81, slider bolt 1.9, push bolt 1.10, transverse linear protrusion 1.11a, longitudinal linear protrusion 1.11b, eccentric wheel 1.12, handle 1.13, second spring 1.14, measuring rod 1.15, sliding rod 1.16, first spring 1.17, steering member 1.18, first side surface 1.19, second side surface 1.20; Detection tool 2, straight groove 2.1, round hole 2.2, tool body 2.3, positioning boss 2.4; Drain cover seat 3, positioning groove 3.1; Conveyor belt 4. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Specific embodiment 1, as Figure 1-Figure 7 As shown, a device for detecting the coaxiality of a sub-cover includes a detection device 1 and a detection tool 2.

[0032] The coaxiality detection device of the present embodiment has good versatility and can be applied to the quantitative detection of the alignment between the inner hole of the drain cover seat 3 of covers of various shapes and the positioning hole of the conveyor belt. In the present embodiment, the covers of various shapes refer to non-circular covers, that is, covers of various shapes other than circular, including elliptical covers, oblong covers, polygonal covers (such as square covers, rectangular covers and other polygonal covers) and other special-shaped covers. The shapes of the positioning hole on the conveyor belt and the inner hole of the drain cover seat 3 match the shape of the cover.

[0033] The detection jig 2 is provided with a straight groove 2.1 and a round hole 2.2, and the openings of the straight groove 2.1 and the round hole 2.2 are both facing upward. The detection jig 2 is positioned on the positioning hole of the conveyor belt. In this embodiment, the detection jig 2 includes a jig body 2.3. The lower surface of the jig body 2.3 is provided with a positioning boss 2.4 that matches the positioning hole of the conveyor belt. The straight groove 2.1 and the round hole 2.2 are arranged on the upper surface of the jig body 2.3. In this way, the detection jig 2 can be positioned in the positioning hole on the conveyor belt 4 by matching the positioning boss 2.4 with the positioning hole on the conveyor belt to determine the positions of the straight groove 2.1 and the round hole 2.2 (since the positioning hole on the conveyor belt is a non-circular hole, the detection jig 2 cannot rotate after the positioning boss 2.4 matches the positioning hole on the conveyor belt).

[0034] In a preferred embodiment, the straight groove 2.1 and the circular hole 2.2 are arranged in the middle of the upper surface of the body, so as to facilitate the actual detection operation.

[0035] In a preferred embodiment, the circular hole 2.2 intersects with the straight groove 2.1 or the circular hole 2.2 is located on the bottom surface of the straight groove 2.1, so as to facilitate the actual detection operation.

[0036] The detection device 1 includes a base frame 1.0, a sliding seat 1.2, a slider 1.5, a vertical rod 1.7 and a measuring assembly. The base frame 1.0 is positioned at the upper end of the drain cover seat 3 by a positioning structure. The positioning structure includes a groove positioning part and a protrusion positioning part that cooperate with each other for positioning, one of which is arranged on the upper end surface of the drain cover seat 3, and the other is arranged on the base frame 1.0. The groove positioning part includes one or more positioning grooves, and the protrusion positioning part includes one or more positioning protrusions. The number of positioning grooves of the groove positioning part is set according to actual needs, and the number of positioning protrusions of the protrusion positioning part is set according to actual needs. As long as the base frame 1.0 is positioned at the upper end of the drain cover seat 3 by the positioning structure, it cannot rotate or translate relative to the drain cover seat 3.

[0037] The slide 1.2 is slidably arranged on the base frame 1.0 in the horizontal direction. The slide 1.2 slides in a straight line. In this embodiment, a linear guide rail 1.1 is arranged on the base frame 1.0, and the slide 1.2 slides along the linear guide rail 1.1. The slide 1.2 and the base frame 1.0 are positioned by a pin hole structure 1.3.

[0038] A shaft seat 1.4 is rotatably provided on the sliding seat 1.2. The shaft of the shaft seat 1.4 is vertically distributed. The shaft of the shaft seat 1.4 refers to the rotation axis of the shaft seat 1.4. The shaft seat 1.4 can be locked by a locking member. The shaft seat through hole 1.41 is provided on the shaft seat 1.4 and passes through the upper and lower ends of the shaft seat 1.4.

[0039] In a preferred embodiment, Figure 1 and Figure 6 In the embodiment, the raised positioning part is arranged on the base frame 1.0, and the raised positioning part includes a transverse linear projection 1.11a and a longitudinal linear projection 1.11b which are distributed in a cross pattern. The linear guide rail 1.1 is parallel to the transverse linear projection 1.11a. The groove positioning part corresponding to the raised positioning part includes four front, rear, left and right positioning grooves 3.1 which are arranged on the upper end surface of the drain cover seat 3, wherein the transverse linear projection 1.11a cooperates with the left and right positioning grooves 3.1, and the longitudinal linear projection 1.11b cooperates with the front, rear, left and right positioning grooves 3.1. The four front, rear, left and right positioning grooves 3.1 all penetrate the upper end surface of the drain cover seat 3. When the base frame 1.0 of the detection device 1 is positioned at the upper end of the drain cover seat 3 by the positioning structure, and the slide seat 1.2 and the base frame 1.0 are positioned by the pin hole structure 1.3, the rotating shaft of the shaft seat 1.4 passes through the intersection of the transverse linear projection 1.11a and the longitudinal linear projection 1.11b which are distributed in a cross pattern. In this way, it is convenient for actual processing and manufacturing, and the positioning structure has good versatility and can be applied to the drain cover seat 3 of covers of various shapes.

[0040] In a preferred embodiment, the pin hole structure 1.3 includes a limit hole 1.31 disposed in the middle of the upper surface of the base frame 1.0, a pin hole disposed on the slide 1.2, and a positioning pin 1.32 slidably inserted into the pin hole. The positioning pin 1.32 is inserted into the limit hole 1.31 to achieve positioning of the slide 1.2 and the base frame 1.0. The positioning pin 1.32 can be pulled out of the limit hole 1.31 to enable the slide 1.2 to slide along the linear guide rail 1.1.

[0041] In a preferred embodiment, the locking member includes an eccentric wheel 1.12 rotatably arranged on the slide 1.2 and a handle 1.13 for driving the eccentric wheel 1.12 to rotate. The rotation axis of the eccentric wheel 1.12 is parallel to the rotation axis of the shaft seat 1.4. The eccentric wheel 1.12 can be pressed or separated from the outer side surface of the shaft seat 1.4 by rotating. In this way, the eccentric wheel 1.12 can be driven to rotate by the handle 1.13, so that the eccentric wheel 1.12 presses the shaft seat 1.4, thereby locking the shaft seat 1.4 on the slide 1.2 and preventing the shaft seat 1.4 from rotating; the eccentric wheel 1.12 can also be driven to rotate by the handle 1.13, so that the eccentric wheel 1.12 is separated from the shaft seat 1.4, thereby releasing the lock on the shaft seat 1.4 and allowing the shaft seat 1.4 to rotate smoothly. The operation is convenient and quick, and the locking of the shaft seat 1.4 is stable and reliable. In this solution, the shaft seat 1.4 has a cylindrical outer side surface coaxial with the rotation axis of the shaft seat 1.4, and the eccentric wheel 1.12 is pressed against the outer side surface of the cylinder to lock the shaft seat 1.4.

[0042] In another preferred embodiment, the locking member comprises an axial locking screw (not shown) disposed on the shaft seat 1.4. The shaft seat 1.4 is locked on the slide seat 1.2 by tightening the axial locking screw so that the axial locking screw is pressed against the surface of the slide seat 1.2.

[0043] The slider 1.5 is slidably connected to the shaft seat 1.4, and the slider 1.5 slides along the radial direction of the rotating shaft of the shaft seat 1.4. The slider 1.5 is locked by the shaft seat bolt 1.6. The shaft seat bolt 1.6 is connected to the shaft seat 1.4 by threading.

[0044] The vertical rod 1.7 is slidably arranged on the slider 1.5 in the vertical direction, and the sliding direction of the vertical rod 1.7 is parallel to the rotation axis of the shaft seat 1.4. In this embodiment, the slider 1.5 is provided with a vertical guide hole, and the vertical rod 1.7 is slidably arranged in the vertical guide hole. The vertical rod 1.7 is parallel to the rotation axis of the shaft seat 1.4. The vertical rod 1.7 is locked by the slider bolt 1.9, and the slider bolt 1.9 is connected to the slider 1.5 by threading. The vertical rod 1.7 is provided with an inner hole of the vertical rod 1.7 that extends axially and passes through the upper and lower ends of the vertical rod 1.7.

[0045] A dial gauge 1.8 is fixedly arranged on the upper end of the vertical rod 1.7. A probe 1.81 of the dial gauge 1.8 extends into the inner hole of the vertical rod 1.7.

[0046] The measuring assembly includes a measuring rod 1.15 arranged along the lower end of the vertical rod 1.7, which can be moved into the straight groove 2.1 and the circular hole 2.2. The measuring rod 1.15 is linked with a measuring head 1.81 of a dial indicator 1.8, and the sliding stroke of the measuring rod 1.15 is measured by the dial indicator 1.8.

[0047] When the detection tooling 2 is positioned in the positioning hole of the conveyor belt 4, the base frame 1.0 of the detection device 1 is positioned at the upper end of the drain cover seat 3 through the positioning structure, and the inner hole of the drain cover seat 3 is aligned with the positioning hole, the sliding direction of the slide 1.2 is parallel to the straight groove 2.1; if the slide 1.2 and the base frame 1.0 are positioned through the pin hole structure 1.3 at this time, the rotating shaft of the shaft seat 1.4 is coaxial with the circular hole 2.2.

[0048] The specific method of using the coaxiality detection device of the present embodiment refers to the detection and alignment method of the coaxiality detection device of the sub-covers described below, which positions the detection tool 2 in the positioning hole of the conveyor belt, and positions the base frame 1.0 of the detection device 1 at the upper end of the leak cover seat 3 through the positioning structure, and then detects the parallelism between the sliding direction of the slide seat 1.2 and the straight groove 2.1, and then detects the coaxiality between the rotating shaft of the shaft seat 1.4 and the circular hole 2.2 (equivalent to measuring the alignment of the inner hole of the leak cover seat 3 and the positioning hole of the conveyor belt through the parallelism of the two straight lines and the coincidence of the two points), to align the inner hole of the leak cover seat 3 and the positioning hole. Specifically, The slide 1.2 is used to drive the measuring rod 1.15 to slide in the straight groove 2.1. During this process, the end of the measuring rod 1.15 is kept against the side wall of the straight groove 2.1. If the sliding direction of the slide 1.2 is not parallel to the straight groove 2.1, the measuring rod 1.15 will slide. The sliding stroke of the measuring rod 1.15 can be measured by the dial indicator 1.8, so as to quantify the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1. If the reading of the dial indicator 1.8 falls within the set range, it means that the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 is qualified; if the reading of the dial indicator 1.8 exceeds the set range, it means that the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 is unqualified, thereby realizing the quantitative detection of the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1. If the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 is unqualified, adjust the position of the drain cover seat 3, and then measure again until the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 meets the set requirements. When the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 meets the set requirements, the inner hole of the drain cover seat 3 and the positioning hole can be aligned only by translating the drain cover seat 3 (without rotating the drain cover seat 3), that is, the inner hole of the drain cover seat 3 and the positioning hole can be aligned only by translating the drain cover seat 3.

[0049] After the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 reaches the set requirement, the measuring rod 1.15 is moved into the circular hole 2.2, and the measuring rod 1.15 is pressed against the inner wall of the circular hole 2.2; then, the shaft seat 1.4 is rotated for at least one circle, during which the end of the measuring rod 1.15 is kept against the inner wall of the circular hole 2.2. If the shaft seat 1.4 and the circular hole 2.2 are not coaxial, the measuring rod 1.15 will slide, and the sliding stroke of the measuring rod 1.15 can be measured by the dial indicator 1.8, so as to quantify the coaxiality between the shaft seat 1.4 and the circular hole 2.2. If the reading of the dial indicator 1.8 falls within the set range, it means that the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is qualified; if the reading of the dial indicator 1.8 exceeds the set range, it means that the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is unqualified, thereby realizing the quantitative detection of the coaxiality between the shaft seat 1.4 and the circular hole 2.2. If the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is unqualified, adjust the position of the drain cover seat 3 and measure again until the coaxiality between the shaft seat 1.4 and the circular hole 2.2 meets the set requirements.

[0050] When the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 reaches the set requirements, and the coaxiality between the rotating shaft of the shaft seat 1.4 and the circular hole 2.2 reaches the set requirements, the inner hole of the drain cover seat 3 is aligned with the positioning hole of the conveyor belt, thereby accurately adjusting the inner hole of the drain cover seat 3 to align with the positioning hole of the conveyor belt, effectively improving the stability of the lower cover.

[0051] At the same time, since the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 (equivalent to the parallelism of two straight lines) is detected, and then the coaxiality between the rotating shaft of the shaft seat 1.4 and the circular hole 2.2 (equivalent to the coincidence of two points) is detected; to detect and align the inner hole of the drain cover seat 3 and the positioning hole, it has good versatility and can be applied to the quantitative detection of the centering of the inner hole of the drain cover seat 3 and the positioning hole of the conveyor belt of covers of various shapes, and the position of the inner hole of the drain cover seat 3 and the positioning hole of the conveyor belt can be accurately adjusted according to the results of the quantitative detection, thereby effectively improving the stability of the lower cover.

[0052] Specifically, Figure 1-Figure 4 As shown, the lower end of the vertical rod 1.7 is fixedly connected to a measuring seat 1.71. A measuring rod 1.15 is slidably arranged on the measuring seat. In this embodiment, the measuring rod 1.15 slides along the radial direction of the rotating shaft of the shaft seat 1.4.

[0053] The measuring assembly also includes a steering member 1.18, a sliding rod 1.16 and a first spring 1.17. The steering member 1.18 is rotatably arranged on the measuring seat. The steering member 1.18 includes a first side surface 1.19 and a second side surface 1.20 distributed at a set angle. The angle between the first side surface and the second side surface is 60-120 degrees. In this embodiment, the angle between the first side surface and the second side surface is 90. The first side surface faces the measuring rod 1.15, and the second side surface faces the sliding rod 1.16. The end of the measuring rod 1.15 abuts against the first side surface 1.19 of the steering member 1.18. The sliding rod 1.16 is vertically slidably arranged on the vertical rod 1.7. In this embodiment, the sliding rod 1.16 is slidably arranged in the inner hole of the vertical rod 1.7. The lower end of the sliding rod 1.16 moves downward under the action of the first spring 1.17 and abuts against the second side surface 1.20 of the steering member 1.18. The upper end of the sliding rod 1.16 abuts against the probe of the dial indicator 1.8. In this way, in the process of detecting the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 and detecting the coaxiality between the rotating shaft of the shaft seat 1.4 and the circular hole 2.2, the sliding stroke of the measuring rod 1.15 can be transmitted to the probe of the dial indicator 1.8 through the steering member 1.18 and the sliding rod 1.16, so that the sliding stroke of the measuring rod 1.15 can be measured by the dial indicator 1.8, thereby realizing the quantitative detection of the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 and the quantitative detection of the coaxiality between the rotating shaft of the shaft seat 1.4 and the circular hole 2.2.

[0054] In this embodiment, an annular boss is provided on the sliding rod 1.16, and a step surface is provided on the inner wall of the inner hole of the vertical rod 1.7. The step surface is located above the annular boss. The first spring 1.17 is sleeved on the sliding rod 1.16 and the first spring 1.17 is located between the step surface and the annular boss.

[0055] like Figure 1 , Figure 3 As shown, a device for detecting the coaxiality of a sub-cover also includes a push bolt 1.10 and a second spring 1.14. The push bolt 1.10 and the second spring 1.14 are located on opposite sides of a slider 1.5. The push bolt 1.10 is connected to the shaft seat 1.4 by a thread. The sliding directions of the push bolt 1.10 and the slider 1.5 are parallel. Under the action of the second spring 1.14, the slider 1.5 moves toward the push bolt 1.10 and abuts against the end of the push bolt 1.10. In this way, the slider 1.5 can be pushed to slide by rotating the push bolt 1.10, thereby driving the vertical rod 1.7 and the measuring rod 1.15 to move, and the moving distance of the measuring rod 1.15 can be accurately moved.

[0056] Specific embodiment 2: The specific structure of a device for detecting the coaxiality of a sub-cover in this embodiment refers to the specific embodiment 1. In this embodiment, an elliptical cover is used as an example for description. At this time, the positioning hole on the conveyor belt is elliptical, and the inner hole cross section of the drain cover seat 3 is elliptical, such as Figure 3 shown.

[0057] In a preferred embodiment, when the detection tool 2 is positioned in the positioning hole of the conveyor belt, the circular hole 2.2 is distributed at the intersection of the long axis and the short axis of the positioning hole, and the straight groove 2.1 extends along the long axis or the short axis of the positioning hole. When the base frame 1.0 of the detection device 1 is positioned at the upper end of the drain cover seat 3 through the positioning structure, the sliding direction of the slide seat 1.2 is parallel to the long axis or the short axis of the inner hole of the drain cover seat 3.

[0058] Of course, it should be noted that the above is only a preferred solution. The straight groove 2.1, the sliding direction of the slide 1.2, and the arrangement of the circular hole 2.2 only need to meet the following conditions, that is, when the detection tooling 2 is positioned in the positioning hole of the conveyor belt, the base frame 1.0 of the detection device 1 is positioned at the upper end of the drain cover seat 3 through the positioning structure, and the inner hole of the drain cover seat 3 is aligned with the positioning hole of the conveyor belt, the sliding direction of the slide 1.2 is parallel to the straight groove 2.1; if the slide 1.2 and the base frame 1.0 are positioned through the pin hole structure 1.3 at this time, the rotating shaft of the shaft seat 1.4 is coaxial with the circular hole 2.2.

[0059] After the detection tool 2 is positioned in the positioning hole of the conveyor belt, the circular hole 2.2 can be arranged at any position in the positioning hole, for example, the circular hole 2.2 is located at a point on the long axis of the positioning hole, or at a point on the short axis of the positioning hole, or at any other position of the positioning hole.

[0060] After the detection tool 2 is positioned in the positioning hole of the conveyor belt, the straight groove 2.1 can be arranged at any angle in the horizontal direction, for example, the straight groove 2.1 is distributed at 10-80 degrees with the long axis of the positioning hole.

[0061] After the base frame 1.0 of the detection device 1 is positioned on the upper end of the drain cover seat 3 by the positioning structure, the sliding direction of the slide seat 1.2 can slide at any angle in the horizontal direction.

[0062] Specific embodiment 3, the specific structure of a device for detecting the coaxiality of a sub-cover in this embodiment refers to specific embodiment 1. In this embodiment, a rectangular or square cover is used as an example for description. At this time, the positioning hole on the conveyor belt is rectangular or square, and the cross section of the inner hole of the drain cover seat 3 is rectangular or square.

[0063] In a preferred embodiment, when the detection tool 2 is positioned in the positioning hole of the conveyor belt, the circular hole 2.2 is distributed at the center of the positioning hole, the straight groove 2.1 is parallel to one side of the positioning hole, and the straight groove 2.1 passes through the center of the positioning hole. When the base frame 1.0 of the detection device 1 is positioned at the upper end of the drain cover seat 3 through the positioning structure, the sliding direction of the slide seat 1.2 is parallel to one side of the inner hole of the drain cover seat 3, and the sliding track of the slide seat 1.2 passes through the center of the inner hole of the drain cover seat 3.

[0064] Of course, it should be noted that the above is only a preferred solution. The straight groove 2.1, the sliding direction of the slide 1.2, and the arrangement of the circular hole 2.2 only need to meet the following conditions, that is, when the detection tooling 2 is positioned in the positioning hole of the conveyor belt, the base frame 1.0 of the detection device 1 is positioned at the upper end of the drain cover seat 3 through the positioning structure, and the inner hole of the drain cover seat 3 is aligned with the positioning hole of the conveyor belt, the sliding direction of the slide 1.2 is parallel to the straight groove 2.1; if the slide 1.2 and the base frame 1.0 are positioned through the pin hole structure 1.3 at this time, the rotating shaft of the shaft seat 1.4 is coaxial with the circular hole 2.2.

[0065] After the detection tool 2 is positioned in the positioning hole of the conveyor belt, the circular hole 2.2 can be arranged at any position in the positioning hole.

[0066] After the detection tool 2 is positioned in the positioning hole of the conveyor belt, the straight groove 2.1 can be arranged at any angle in the horizontal direction, for example, the straight groove 2.1 is distributed at 10-80 degrees with a certain side of the positioning hole.

[0067] After the base frame 1.0 of the detection device 1 is positioned on the upper end of the drain cover seat 3 by the positioning structure, the sliding direction of the slide seat 1.2 can slide at any angle in the horizontal direction.

[0068] Specific embodiment 4, the specific structure of a device for detecting the coaxiality of a sub-cover in this embodiment refers to specific embodiment 1. In this embodiment, a special-shaped cover is used as an example for description. Similarly, when the cover is a special-shaped cover, the arrangement of the straight groove 2.1, the sliding direction of the slide 1.2, and the circular hole 2.2 only needs to meet the following conditions, that is, when the detection tool 2 is positioned in the positioning hole of the conveyor belt, the base frame 1.0 of the detection device 1 is positioned at the upper end of the leaky cover seat 3 through the positioning structure, and the inner hole of the leaky cover seat 3 is aligned with the positioning hole of the conveyor belt, the sliding direction of the slide 1.2 is parallel to the straight groove 2.1; if the slide 1.2 and the base frame 1.0 are positioned through the pin hole structure 1.3 at this time, the shaft seat 1.4 rotating shaft is coaxial with the circular hole 2.2.

[0069] When the detection tool 2 is positioned in the positioning hole of the conveyor belt, the circular hole 2.2 is preferably arranged in the middle of the positioning hole, and of course it can also be arranged at any position in the positioning hole. When the detection tool 2 is positioned in the positioning hole of the conveyor belt, the straight groove 2.1 can be extended in any direction in the horizontal direction. When the base frame 1.0 of the detection device 1 is positioned at the upper end of the drain cover seat 3 through the positioning structure, the sliding direction of the slide seat 1.2 can be extended in any direction in the horizontal direction.

[0070] Specific embodiment 5: The rest of the structure of this embodiment refers to the specific embodiment 1, the difference is that: The coaxiality detection device of the present embodiment is only applicable to the quantitative detection of the centering between the inner hole of the leaking cover seat 3 of the circular cover and the positioning hole of the conveyor belt. The positioning hole on the conveyor belt corresponding to the circular cover and the inner hole of the leaking cover seat 3 are both circular holes. The specific structure is as follows: In this embodiment, in the detection tool 2, the positioning boss 2.4 is a cylindrical boss, and the circular hole and the cylindrical boss are coaxially distributed.

[0071] In this embodiment, the raised positioning part is a cross-shaped horizontal linear projection and a vertical linear projection. The linear guide rail 1.1 is parallel to the horizontal linear projection. The groove positioning part corresponding to the raised positioning part includes four front, rear, left, and right positioning grooves 3.1 arranged on the upper end surface of the drain cover seat 3, wherein the horizontal linear projection cooperates with the left and right positioning grooves 3.1, and the vertical linear projection cooperates with the front and rear positioning grooves 3.1. The four front, rear, left, and right positioning grooves 3.1 all penetrate the upper end surface of the drain cover seat 3.

[0072] When the base frame 1.0 of the detection device 1 is positioned at the upper end of the drain cover seat 3 through the positioning structure, and the slide 1.2 and the base frame 1.0 are positioned through the pin hole structure 1.3, the rotating axis of the shaft seat 1.4 passes through the intersection of the horizontal straight line protrusions and the longitudinal straight line protrusions distributed in a cross shape, and the rotating axis of the shaft seat 1.4 is coaxial with the inner hole of the drain cover seat 3.

[0073] In this embodiment, the quantitative detection method for the centering of the inner hole of the circular cover seat 3 and the positioning hole of the conveyor belt is as follows: A detection and alignment method using a sub-cover coaxiality detection device also includes the following steps: First, as Figure 5-Figure 7 As shown, the detection tool 2 is positioned in the positioning hole of the conveyor belt 4. Specifically, the positioning boss 2.4 on the lower surface of the tool body 2.3 is inserted into the positioning hole, and the positioning boss 2.4 and the positioning hole are matched without clearance.

[0074] After the base frame 1.0 of the detection device 1 is positioned on the upper end of the drain cover seat 3 through the positioning structure, specifically, the base frame 1.0 and the upper end of the drain cover seat 3 are positioned by inserting the protruding positioning part into the groove positioning part.

[0075] Second, the slide 1.2 and the base frame 1.0 are positioned through the pin hole structure 1.3; the height of the measuring rod 1.15 is adjusted through the vertical rod 1.7, so that the measuring rod 1.15 moves into the circular hole 2.2, and then the vertical rod 1.7 is locked through the slider bolt 1.9.

[0076] The slider 1.5 is moved so that the measuring rod 1.15 is pressed against the inner wall of the circular hole 2.2. Specifically, the slider 1.5 is pushed to slide by rotating the push bolt 1.10, thereby driving the vertical rod 1.7 and the measuring rod 1.15 to move, so that the end of the measuring rod 1.15 is pressed against the side wall of the straight groove 2.1. Then the slider 1.5 is locked by the shaft seat bolt 1.6.

[0077] Third, rotate the shaft seat 1.4 at least one circle (generally, the shaft seat 1.4 can be rotated 360 degrees, but in actual measurement, in order to ensure that the shaft seat 1.4 rotates 360 degrees, it can be rotated a certain angle more). During this process, the coaxiality of the shaft of the shaft seat 1.4 and the circular hole 2.2 can be measured by the dial indicator 1.8; specifically, during this process, the end of the measuring rod 1.15 is kept against the inner wall of the circular hole 2.2. If the shaft seat 1.4 and the circular hole 2.2 are not coaxial, the measuring rod 1.15 will slide. The sliding stroke of the measuring rod 1.15 can be measured by the dial indicator 1.8, so as to quantify the coaxiality between the shaft seat 1.4 and the circular hole 2.2. If the reading of the dial indicator 1.8 falls within the set range, it means that the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is qualified; if the reading of the dial indicator 1.8 exceeds the set range, it means that the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is unqualified, thereby realizing the quantitative detection of the coaxiality between the shaft seat 1.4 and the circular hole 2.2.

[0078] If the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is unqualified, adjust the position of the drain cover seat 3 according to the data and direction during measurement, and then return to the third step until the coaxiality between the shaft seat 1.4 and the circular hole 2.2 meets the set requirements.

[0079] When the coaxiality between the shaft seat 1.4 and the circular hole 2.2 reaches the set requirement, the inner hole of the drain cover seat 3 is aligned with the positioning hole of the conveyor belt, thereby accurately adjusting the inner hole of the drain cover seat 3 to align with the positioning hole of the conveyor belt, effectively improving the stability of the lower cover.

[0080] Specific embodiment six, a detection and alignment method using a sub-cover coaxiality detection device, the specific structure of the sub-cover coaxiality detection device in this method refers to any one of specific embodiments one to four.

[0081] The detection and alignment method using the coaxiality detection device for the separate covers of this embodiment is applicable to the quantitative detection of the alignment between the inner hole of the drain cover seat 3 of covers of various shapes and the positioning hole of the conveyor belt, wherein the covers of various shapes refer to non-circular covers, that is, covers of various shapes other than circular, including elliptical covers, oval covers, polygonal covers (such as square covers, rectangular covers and other polygonal covers) and other special-shaped covers. The shapes of the positioning holes on the conveyor belt and the inner hole of the drain cover seat 3 match the shape of the cover. The specific detection and alignment method is as follows, A detection and alignment method using a cover coaxiality detection device comprises the following steps: First, as Figure 5-Figure 7 As shown, the detection tool 2 is positioned in the positioning hole of the conveyor belt 4. Specifically, the positioning boss 2.4 on the lower surface of the tool body 2.3 is inserted into the positioning hole, and the positioning boss 2.4 and the positioning hole are matched without clearance.

[0082] After the base frame 1.0 of the detection device 1 is positioned on the upper end of the drain cover seat 3 through the positioning structure, specifically, the base frame 1.0 and the upper end of the drain cover seat 3 are positioned by inserting the protruding positioning part into the groove positioning part.

[0083] Second, the height of the measuring rod 1.15 is adjusted by the vertical rod 1.7 so that the measuring rod 1.15 moves into the straight groove 2.1; and then the vertical rod 1.7 is locked by the slider bolt 1.9.

[0084] The shaft seat 1.4 is rotated so that the measuring rod 1.15 faces the side wall of the straight groove 2.1, and then the shaft seat 1.4 is locked by the locking member.

[0085] The slider 1.5 is moved so that the measuring rod 1.15 is pressed against the side wall of the straight groove 2.1. Specifically, the slider 1.5 is pushed to slide by rotating the push bolt 1.10, thereby driving the vertical rod 1.7 and the measuring rod 1.15 to move, so that the end of the measuring rod 1.15 is pressed against the side wall of the straight groove 2.1. Then the slider 1.5 is locked by the shaft seat bolt 1.6.

[0086] Third, the slide of the slide 1.2 drives the measuring rod 1.15 to slide in the straight groove 2.1. During this process, the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 can be measured by the dial indicator 1.8. Specifically, during this process, the end of the measuring rod 1.15 is kept against the side wall of the straight groove 2.1. If the sliding direction of the slide 1.2 is not parallel to the straight groove 2.1, the measuring rod 1.15 will slide. The sliding stroke of the measuring rod 1.15 can be measured by the dial indicator 1.8, thereby quantifying the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1. If the reading of the dial indicator 1.8 falls within the set range, it means that the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 is qualified; if the reading of the dial indicator 1.8 exceeds the set range, it means that the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 is unqualified.

[0087] If the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 is unqualified, adjust the position of the drain cover seat 3 according to the data and direction during measurement, and then return to the third step until the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 meets the set requirements.

[0088] When the parallelism between the sliding direction of the slide seat 1.2 and the straight groove 2.1 reaches the set requirement, the inner hole of the drain cover seat 3 and the positioning hole can be aligned only by translating the drain cover seat 3 (without rotating the drain cover seat 3), that is, the inner hole of the drain cover seat 3 and the positioning hole can be aligned only by translating the drain cover seat 3.

[0089] Furthermore, a detection and alignment method using the sub-cover coaxiality detection device also includes the following steps: Fourth, unlock the slider 1.5, the shaft seat 1.4 and the vertical rod 1.7. Specifically, loosen the shaft seat bolt 1.6 to unlock the slider 1.5.

[0090] Loosen the locking piece to unlock the shaft seat 1.4; move the slide 1.2 so that the slide 1.2 and the base frame 1.0 are positioned through the pin hole structure 1.3. Specifically, insert the positioning pin 1.32 on the slide 1.2 into the limiting hole 1.31 to achieve the positioning of the slide 1.2 and the base frame 1.0.

[0091] Loosen the slider bolt 1.9 to unlock the vertical rod 1.7; adjust the height of the measuring rod 1.15 through the vertical rod 1.7, move the measuring rod 1.15 into the round hole 2.2, and then lock the vertical rod 1.7 through the slider bolt 1.9.

[0092] The slider 1.5 is moved so that the measuring rod 1.15 is pressed against the inner wall of the circular hole 2.2. Specifically, the slider 1.5 is pushed to slide by rotating the push bolt 1.10, thereby driving the vertical rod 1.7 and the measuring rod 1.15 to move, so that the end of the measuring rod 1.15 is pressed against the side wall of the straight groove 2.1. Then the slider 1.5 is locked by the shaft seat bolt 1.6.

[0093] Fifth, rotate the shaft seat 1.4 at least one circle (generally, the shaft seat 1.4 can be rotated 360 degrees, but in actual measurement, in order to ensure that the shaft seat 1.4 rotates 360 degrees, it can be rotated a certain angle more). During this process, the coaxiality of the shaft of the shaft seat 1.4 and the circular hole 2.2 can be measured by the dial indicator 1.8; specifically, during this process, the end of the measuring rod 1.15 is kept against the inner wall of the circular hole 2.2. If the shaft seat 1.4 and the circular hole 2.2 are not coaxial, the measuring rod 1.15 will slide. The sliding stroke of the measuring rod 1.15 can be measured by the dial indicator 1.8, so as to quantify the coaxiality between the shaft seat 1.4 and the circular hole 2.2. If the reading of the dial indicator 1.8 falls within the set range, it means that the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is qualified; if the reading of the dial indicator 1.8 exceeds the set range, it means that the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is unqualified, thereby realizing the quantitative detection of the coaxiality between the shaft seat 1.4 and the circular hole 2.2.

[0094] If the coaxiality between the shaft seat 1.4 and the circular hole 2.2 is unqualified, adjust the position of the drain cover seat 3 according to the data and direction during measurement, and then return to the fifth step until the coaxiality between the shaft seat 1.4 and the circular hole 2.2 meets the set requirements.

[0095] When the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 reaches the set requirements, and the coaxiality between the rotating shaft of the shaft seat 1.4 and the circular hole 2.2 reaches the set requirements, the inner hole of the drain cover seat 3 is aligned with the positioning hole of the conveyor belt, thereby accurately adjusting the inner hole of the drain cover seat 3 to align with the positioning hole of the conveyor belt, effectively improving the stability of the lower cover.

[0096] At the same time, since the parallelism between the sliding direction of the slide 1.2 and the straight groove 2.1 is detected (equivalent to the parallelism of two straight lines), and then the coaxiality between the rotating shaft of the shaft seat 1.4 and the circular hole 2.2 is detected (equivalent to the coincidence of two points), the inner hole of the drain cover seat 3 and the positioning hole are detected and aligned. Therefore, it can be suitable for the quantitative detection of the centering of the inner hole of the drain cover seat 3 of covers of various shapes and the positioning hole of the conveyor belt, and the position of the inner hole of the drain cover seat 3 and the positioning hole of the conveyor belt can be accurately adjusted according to the results of the quantitative detection, thereby effectively improving the stability of the lower cover.

[0097] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent transformation made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A device for detecting the coaxiality of a sub-cover, characterized in that: include: Inspection fixture, with straight slots and round holes; The detection device comprises: The bottom frame is positioned on the upper end of the drain cover seat through the positioning structure; A slide seat is arranged on the base frame for sliding along the horizontal direction, and an axle seat is rotatably arranged on the slide seat. The axle seat rotating shaft is vertically distributed. The slide seat and the base frame are positioned by a pin hole structure, and the axle seat can be locked by a locking member. The slider is connected to the shaft seat by sliding along the radial direction of the shaft seat rotating shaft, and the slider is locked by the shaft seat bolt; A vertical rod on the slider is arranged to slide vertically, a dial indicator is arranged on the upper end of the vertical rod, and the vertical rod is locked by a slider bolt; The measuring assembly comprises a measuring rod arranged along the lower end of a vertical rod for sliding, the measuring rod can be moved into a straight groove and a round hole, the measuring rod is linked with a measuring head of a dial indicator, and the sliding stroke of the measuring rod is measured by the dial indicator.

2. A device for detecting coaxiality of a sub-cover according to claim 1, characterized in that: When the inner hole of the drain cover seat is aligned with the positioning hole of the conveyor belt, the detection tooling is positioned in the positioning hole of the conveyor belt, and the base frame of the detection device is positioned at the upper end of the drain cover seat through the positioning structure, the sliding direction of the slide seat is parallel to the straight groove; if the slide seat and the base frame are positioned through the pin hole structure at this time, the shaft seat shaft and the circular hole are coaxial.

3. A device for detecting coaxiality of a sub-cover according to claim 1, characterized in that: A measuring seat is provided at the lower end of the vertical rod, and the measuring rod is slidably arranged on the measuring seat; The measurement kit also includes: A steering member is rotatably arranged on the measuring seat, and the end of the measuring rod abuts against the steering member; The sliding rod and the first spring are arranged on the vertical rod in a vertical sliding manner. The lower end of the sliding rod moves downward under the action of the first spring and abuts against the steering member. The upper end of the sliding rod abuts against the probe of the dial indicator.

4. A device for detecting coaxiality of a sub-cover according to claim 1, 2 or 3, characterized in that: The locking member includes an eccentric wheel rotatably arranged on the slide seat and a handle for driving the eccentric wheel to rotate, the rotation axis of the eccentric wheel is parallel to the rotation axis of the shaft seat, and the eccentric wheel can be pressed against or separated from the outer side surface of the shaft seat by rotating; The pin hole structure comprises a limiting hole arranged in the middle of the upper surface of the base frame, a pin hole arranged on the slide seat and a positioning pin inserted in the pin hole.

5. A device for detecting coaxiality of a sub-cover according to claim 1, 2 or 3, characterized in that: It also includes a pushing bolt and a second spring, which are located on opposite sides of the slider. The pushing bolt is connected to the shaft seat through a thread. The sliding directions of the pushing bolt and the slider are parallel. Under the action of the second spring, the slider moves toward the pushing bolt and rests against the end of the pushing bolt.

6. A device for detecting coaxiality of a sub-cover according to claim 1, 2 or 3, characterized in that: The detection tooling includes a tooling body, the lower surface of which is provided with a positioning boss matching the positioning hole of the conveyor belt, a straight groove and a round hole are arranged in the middle of the upper surface of the tooling body, and the round hole intersects with the straight groove or is located on the bottom surface of the straight groove.

7. A device for detecting coaxiality of a sub-cover according to claim 1, 2 or 3, characterized in that: The positioning structure comprises a groove positioning part and a protrusion positioning part, one of which is arranged on the upper end surface of the drain cover seat, and the other is arranged on the base frame.

8. A device for detecting coaxiality of a sub-cover according to claim 7, characterized in that: The raised positioning portion is arranged on the base frame, and the raised positioning portion includes a transverse linear protrusion and a longitudinal linear protrusion which are distributed in a cross pattern; the groove positioning portion corresponding to the raised positioning portion includes four front, rear, left and right positioning grooves which are arranged on the upper end surface of the drain cover seat, wherein the transverse linear protrusion cooperates with the left and right positioning grooves, and the longitudinal linear protrusion cooperates with the front and rear positioning grooves; when the base frame of the detection device is positioned at the upper end of the drain cover seat through the positioning structure, and the sliding seat and the base frame are positioned through the pin hole structure, the rotating shaft of the shaft seat passes through the intersection of the transverse linear protrusion and the longitudinal linear protrusion which are distributed in a cross pattern.

9. A detection and alignment method using the sub-cover coaxiality detection device according to any one of claims 1 to 8, characterized in that: include, First, position the inspection tooling in the positioning hole of the conveyor belt, and position the bottom frame on the upper end of the drain cover seat through the positioning structure; Second, move the measuring rod into the straight slot through the vertical rod, and then lock the vertical rod; Turn the shaft seat so that the measuring rod faces the side wall of the straight groove, and then lock the shaft seat; Move the slider to make the measuring rod press against the side wall of the straight groove, and then lock the slider; Third, the slide drives the measuring rod to slide in the straight groove. During this process, the parallelism between the sliding direction of the slide and the straight groove can be measured by a dial indicator. If the parallelism between the sliding direction of the slide and the straight groove is not up to standard, adjust the position of the drain cover seat and then return to the third step until the parallelism between the sliding direction of the slide and the straight groove meets the set requirements.

10. The detection and alignment method using the cover coaxiality detection device according to claim 9 is characterized in that: include: Fourth, unlock the slider, shaft seat and vertical rod; Move the slide to position the slide and the base frame through the pin hole structure; Move the measuring rod into the circular hole through the vertical rod, and then lock the vertical rod; Move the slider to make the measuring rod press against the inner wall of the circular hole, and then lock the slider; Fifth, rotate the shaft seat at least one circle. During this process, the coaxiality between the shaft seat shaft and the circular hole can be measured by a dial indicator. If the coaxiality between the shaft seat shaft and the circular hole is unqualified, adjust the position of the drain cover seat and then return to step 5 until the coaxiality between the shaft seat shaft and the circular hole meets the set requirements.

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