A screw height detection device

Abstract

The present invention discloses a screw height detection device, which belongs to the field of height detection devices, including a detection platform, a column is fixedly connected to one side edge of the top surface of the detection platform, and a height detection mechanism is fixedly connected to one side of the column; a detection auxiliary component is provided on the other side of the top surface of the detection platform, and a rolling jacking mechanism is provided inside the detection platform, and the height detection mechanism specifically includes: a vertical linear guide fixed on one side of the column, a vertical linear motor is movably connected to one side of the vertical linear guide, and a cross bar is fixedly connected to one side of the vertical linear motor, and a plurality of uniformly distributed laser ranging probes are fixedly connected to the bottom end surface of the cross bar along its length direction, and a camera is fixedly connected to one side edge position of the bottom end surface of the cross bar. The present invention can first identify the straightness of the screw when detecting the screw, so as to avoid some bent screws affecting the final detection result.

Description

Technical Field

[0001] The invention relates to the field of height detection devices, in particular to a screw height detection device. Background Art

[0002] As a commonly used fastener, screws play an important role in various fields such as machinery, construction, automobiles, and electronics. They are mainly divided into head screws and headless screws. Among them, head screws are a kind of threaded connector, which are commonly found in machinery, electricity, aviation and other industries. In terms of structure, the head of the head screw is on one side of the thread, usually cylindrical or hexagonal, and has a certain torque. As the name suggests, headless screws are screws without traditional head shapes. They are a deformed product of ordinary hexagon socket screws, also known as machine screws or top screws. The design of this screw is mainly used for fastening the connection of the hole position that does not change from the countersunk head in the connection mechanism, and plays the role of locking, simple positioning and limiting.

[0003] In order to ensure that the height of the head screws remains consistent after production, it is necessary to select some head screws for height detection. However, the traditional height detection device cannot first identify the straightness of the screws when detecting the screws, which causes some bent screws to affect the final detection results.

[0004] Therefore, those skilled in the art provide a screw height detection device to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a screw height detection device, which can first identify the straightness of the screw when detecting the screw, so as to avoid some bent screws affecting the final detection result, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A screw height detection device comprises a detection platform, a top edge of the detection platform is fixedly connected to a column, and a side surface of the column is fixedly connected to a height detection mechanism;

[0008] A detection auxiliary component is arranged on the other side of the top end surface of the detection platform, and a rolling lifting mechanism is arranged inside the detection platform.

[0009] As a further solution of the present invention: the height detection mechanism specifically includes: a vertical linear guide fixed on a side surface of a column, a vertical linear motor movably connected to one side surface of the vertical linear guide, and a cross bar fixedly connected to one side surface of the vertical linear motor, a plurality of evenly distributed laser ranging probes fixedly connected to the bottom end surface of the cross bar along its length direction, and a camera fixedly connected to one side edge position of the bottom end surface of the cross bar.

[0010] As a further solution of the present invention: the detection auxiliary component specifically includes: a base plate fixed on the top surface of the detection table, the top surface of the base plate is fixedly connected to two parallel rotating support plates, and a rotating seat is rotatably connected between the two rotating support plates, the top of the rotating seat is fixedly connected to a discharge mechanism, and one side of the rotating seat is fixedly connected to a motor support plate, one side of the motor support plate is fixedly connected to a driving motor, and the output shaft of the driving motor passes through the motor support plate and is fixedly connected to the rotating seat.

[0011] As a further solution of the present invention: a limited support platform is fixedly connected to the top end surface of the bottom plate between the two rotating support plates.

[0012] As a further solution of the present invention: the discharge mechanism specifically includes: a strip plate fixed on the top surface of the rotating seat, the top surface of the strip plate is provided with a vertical groove, and the inner walls on both sides of the vertical groove are symmetrically provided with a plurality of holes, each of the holes is provided with a head screw, one side of the strip plate is provided with a head clamp, and the other side of the strip plate is provided with a driving member for driving the head clamp and the head of the head screw to undergo relative displacement.

[0013] As a further solution of the present invention: the head clamping member specifically includes: two strip lifting plates fixed in parallel on one side of the strip plate, a concave plate is provided on the outside of the strip lifting plate, and telescopic motors are embedded in the upper and lower parts of the inside of the strip lifting plate, the output shafts of the two telescopic motors are fixedly connected to the corresponding inner walls of the concave plate grooves, and the limiting plates are symmetrically fixedly connected to the opposite sides of the two concave plates, two parallel limiting slides are fixedly connected to one side of the strip lifting plate, a limiting slide groove is provided on one side of the strip plate corresponding to the position of the limiting slide groove, and the limiting slide groove is movably connected inside the limiting slide groove and matches with it.

[0014] As a further solution of the present invention: the driving member specifically includes: a stepper motor fixed in the middle position inside the vertical slot, the output shaft of the stepper motor passes through the inner wall of the vertical slot and is fixedly connected to a driving gear, and transmission racks are symmetrically and movably connected on both sides of the driving gear, a limiter is provided inside the transmission rack, and the transmission rack is meshed with the driving gear, a connecting plate is fixedly connected between the transmission rack and the corresponding strip-shaped lifting plate, and rectangular grooves for the connecting plates to pass through are opened on the inner walls on both sides of the vertical slot.

[0015] As a further solution of the present invention: the limit member specifically includes: an optical axis that passes through the inside of the transmission rack, the top and bottom ends of the optical axis are fixedly connected with ear plates, and the ear plates are fixedly connected to the other side of the strip plate.

[0016] As a further solution of the present invention: the rolling lifting mechanism specifically includes: a rolling cavity opened inside the detection table, transverse linear guides are symmetrically fixedly connected to the inner walls on both sides of the rolling cavity, and a transverse linear motor is movably connected to one side of the transverse linear guide, an axis is fixedly connected between the two transverse linear motors, and a roller is rotatably connected to the outside of the axis, the roller is in contact with the bottom end face of the rolling cavity, and a transverse groove is opened on the top end face of the rolling cavity.

[0017] As a further solution of the present invention: a limited support seat is fixedly connected to the top surface of the detection table on one side of the transverse groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The auxiliary detection component provided in the present application can first identify the straightness of the screws when detecting the screws, so as to prevent some bent screws from affecting the final detection result.

[0020] 2. The height detection mechanism and rolling lifting mechanism provided in the present application can detect the height of a row of multiple head screws at the same time, thereby improving the detection speed and facilitating use.

[0021] 3. The detection auxiliary component of the present application has two working modes. In the first working mode, the discharge mechanism is erected to cooperate with the camera to identify the straightness of the head screw. In the second working mode, the discharge mechanism is laid horizontally to cooperate with the height detection mechanism and the rolling lifting mechanism to detect the height of the head screw.

[0022] 4. The present application provides a discharge mechanism that can place multiple head screws at one time for straightness identification and height detection.

[0023] 5. The head clamping member provided in the present application can clamp and limit the head screw to prevent the head screw from falling off, and the driving member can drive each head screw to rotate, thereby facilitating comprehensive straightness identification of the head screw with the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a screw height detection device;

[0025] Figure 2 An internal view of a strip plate in a screw height detection device;

[0026] Figure 3 A side view of a strip plate in a screw height detection device;

[0027] Figure 4 A screw height detection device Figure 2 A magnified view of part A;

[0028] Figure 5 This is a combined view of a rotating seat and a strip plate in a screw height detection device;

[0029] Figure 6 This is a combined view of a transverse linear guide and a roller in a screw height detection device.

[0030] In the figure: 1, detection table; 2, column; 3, vertical linear guide; 4, vertical linear motor; 5, cross bar; 6, laser ranging probe; 7, camera; 8, rolling cavity; 9, horizontal linear guide; 10, horizontal linear motor; 11, shaft; 12, roller; 13, rotating support plate; 14, bottom plate; 15, rotating seat; 16, motor support plate; 17, driving motor; 18, limit support table; 19, strip plate; 20, limit support seat; 21, horizontal groove; 22, vertical groove; 23, stepping motor; 24, jack; 25, head screw; 26, driving gear; 27, strip lifting plate; 28, concave plate; 29, telescopic motor; 30, limit plate; 31, limit slide groove; 32, limit slide; 33, connecting plate; 34, rectangular groove; 35, ear plate; 36, optical axis; 37, transmission rack. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As mentioned in the background technology of this application, it has been found through research that the existing height detection device cannot first identify the straightness of the screws when detecting the screws, which causes some bent screws to affect the final detection results, and there are certain defects.

[0033] In order to solve the above-mentioned defects, the present application discloses a screw height detection device, which can first identify the straightness of the screws when detecting the screws, so as to avoid some bent screws affecting the final detection result.

[0034] The following will describe in detail how the solution of the present application solves the above technical problems in conjunction with the accompanying drawings.

[0035] See also Figures 1 to 6In an embodiment of the present invention, a screw height detection device includes a detection platform 1, a column 2 is fixedly connected to one edge of the top surface of the detection platform 1, and a height detection mechanism is fixedly connected to one side of the column 2; a detection auxiliary component is provided on the other side of the top surface of the detection platform 1, and a rolling jacking mechanism is provided inside the detection platform 1. The detection auxiliary component provided in the present application can first identify the straightness of the screw when detecting the screw, so as to avoid some bent screws affecting the final detection result.

[0036] In this embodiment, the height detection mechanism specifically includes: a vertical linear guide rail 3 fixed on one side of the column 2, a vertical linear motor 4 movably connected to one side of the vertical linear guide rail 3, and a cross bar 5 fixedly connected to one side of the vertical linear motor 4, a plurality of laser rangefinder probes 6 evenly distributed fixedly connected to the bottom end face of the cross bar 5 along its length direction, and a camera 7 fixedly connected to one side edge of the bottom end face of the cross bar 5. The height detection mechanism and rolling lifting mechanism set in this application can detect the height of a row of multiple head screws 25 at the same time, improve the detection speed, and facilitate use.

[0037] In this embodiment, the detection auxiliary component specifically includes: a bottom plate 14 fixed on the top surface of the detection table 1, the top surface of the bottom plate 14 is fixedly connected to two parallel rotating support plates 13, and a rotating seat 15 is rotatably connected between the two rotating support plates 13, the top of the rotating seat 15 is fixedly connected to a feeding mechanism, and one side of the rotating seat 15 is fixedly connected to a motor support plate 16, one side of the motor support plate 16 is fixedly connected to a driving motor 17, and the output shaft of the driving motor 17 passes through the motor support plate 16 and is fixedly connected to the rotating seat 15. The detection auxiliary component of the present application has two working modes. In the first working mode, the feeding mechanism is erected to cooperate with the camera 7 to identify the straightness of the head screw 25. In the second working mode, the feeding mechanism is placed horizontally to cooperate with the height detection mechanism and the rolling lifting mechanism to detect the height of the head screw 25.

[0038] In this embodiment, a limit support platform 18 is fixedly connected to the top end surface of the bottom plate 14 between the two rotating support plates 13. The limit support platform 18 can support one end of the material discharging mechanism when it is turned over and laid flat.

[0039] In this embodiment, the discharge mechanism specifically includes: a strip plate 19 fixed on the top surface of the rotating seat 15, a vertical groove 22 is opened on the top surface of the strip plate 19, and a plurality of plug holes 24 are symmetrically opened on the inner walls of both sides of the vertical groove 22, each plug hole 24 is provided with a head screw 25, a head clamp is provided on one side of the strip plate 19, and a driving member is provided on the other side of the strip plate 19 for driving the head clamp to move relative to the head of the head screw 25. The set discharge mechanism can be used to put multiple head screws 25 at one time for straightness recognition and height detection.

[0040] In this embodiment, the head clamping member specifically includes: two strip lifting plates 27 fixed in parallel on one side of the strip plate 19, a concave plate 28 is provided on the outside of the strip lifting plate 27, and telescopic motors 29 are embedded in the upper and lower parts of the strip lifting plate 27, the output shafts of the two telescopic motors 29 are fixedly connected to the inner wall of the groove of the corresponding concave plate 28, and the opposite sides of the two concave plates 28 are symmetrically fixedly connected to the limiting plate 30, one side of the strip lifting plate 27 is fixedly connected to two parallel limiting slides 32, and a limiting slide 31 is provided on one side of the strip plate 19 corresponding to the position of the limiting slide 32, and the limiting slide 32 is movably connected inside the limiting slide 31 and matches it. The head clamping member can clamp and limit the head screw 25 to prevent the head screw 25 from falling off.

[0041] In this embodiment, the driving member specifically includes: a stepper motor 23 fixed in the middle position inside the vertical slot 22, the output shaft of the stepper motor 23 penetrates the inner wall of the vertical slot 22 and is fixedly connected to a driving gear 26, and a transmission rack 37 is symmetrically and movably connected to both sides of the driving gear 26, a limiter is provided inside the transmission rack 37, and the transmission rack 37 is meshed with the driving gear 26, a connecting plate 33 is fixedly connected between the transmission rack 37 and the corresponding strip-shaped lifting plate 27, and rectangular grooves 34 are provided on the inner walls on both sides of the vertical slot 22 for the connecting plate 33 to pass through. The driving member can drive each head screw 25 to rotate, thereby facilitating the camera 7 to perform comprehensive straightness recognition on the head screw 25.

[0042] In this embodiment, the stopper specifically includes: an optical axis 36 that passes through the transmission rack 37, the top and bottom ends of the optical axis 36 are fixedly connected with ear plates 35, and the ear plates 35 are fixedly connected to the other side of the strip plate 19. This arrangement can improve the stability of the transmission rack 37 moving up and down.

[0043] In this embodiment, the rolling lifting mechanism specifically includes: a rolling cavity 8 opened inside the detection platform 1, symmetrically fixedly connected to the inner walls of both sides of the rolling cavity 8 are transverse linear guides 9, and a transverse linear motor 10 is movably connected to one side of the transverse linear guide 9, a shaft 11 is fixedly connected between the two transverse linear motors 10, and the shaft 11 is rotatably connected to the outside of the roller 12, the roller 12 is in contact with the bottom end surface of the rolling cavity 8, and a transverse groove 21 is opened on the top surface of the rolling cavity 8. The rolling lifting mechanism can sequentially lift a row of multiple head screws 25 for height detection.

[0044] In this embodiment, a limit support seat 20 is fixedly connected to the top surface of the detection platform 1 on one side of the transverse groove 21. The limit support seat 20 can support one end of the material discharging mechanism when it is turned over and laid flat.

[0045] The working principle of the present invention is: when in use, first, insert a plurality of head screws 25 into the corresponding sockets 24 in sequence, and during the insertion process, the heads of the head screws 25 are attached to the sockets 24. Subsequently, the heads of the head screws 25 are clamped and limited by the head clamp, specifically: the telescopic motor 29 runs to extend the output shaft, thereby driving the two concave plates 28 to approach each other and abut against the outer surface of the heads of the head screws 25, and the two limiting plates 30 are clamped on the outer side of the heads of the head screws 25 to prevent them from falling off. Next, the camera 7 collects the image of the head screws 25 downward, and then sends the collected image to the background control terminal. The background control terminal determines whether there is a deviation in the image contour of the head screws 25 by identifying the image. If there is a deviation, it means that there are bent defective products in this batch of head screws 25. At the same time, each head screw 25 is driven to rotate through the driving member, so as to cooperate with the camera 7 to perform a comprehensive straightness identification of the head screw 25. Specifically, the stepper motor 23 drives the driving gear 26 to rotate. Since the driving gear 26 is engaged with the transmission racks 37 on both sides, the two transmission racks 37 move up and down, and the connecting plate 33 connected to the transmission racks 37 moves in the rectangular groove 34, so that the two strip lifting plates 27 also move up and down. When the two strip lifting plates 27 move, the friction generated by the head of the head screw 25 drives the head screw 25 to rotate, so that the camera 7 can perform a comprehensive image acquisition of the head screw 25.

[0046] After the head screw 25 completes the straightness identification, the driving motor 17 runs to drive the rotating seat 15 to flip ninety degrees to the left, and the originally vertical strip plate 19 flips to a horizontal state, and one end of the strip plate 19 rests on the limit support seat 20. Then, the telescopic motor 29 of the head clamp runs to retract the output shaft, and the two concave plates 28 loosen the head of the head screw 25, and the two limit plates 30 do not block the top of the head screw 25. At the same time, the head screw 25 on the strip plate 19 extends from the horizontal groove 21 into the rolling cavity 8, and the laser ranging probe 6 also corresponds to the head screw 25 one by one. Then, the vertical linear motor 4 runs and moves downward along the vertical linear guide rail 3 until the laser ranging probe 6 on the cross bar 5 reaches the specified height. At this time, the distance between the laser ranging probe 6 and the bottom end surface of the rolling cavity 8 is L1. Subsequently, the rolling lifting mechanism operates, and the horizontal linear motor 10 starts to move forward along the horizontal linear guide rail 9. During the process, the roller 12 on the shaft 11 rolls forward on the bottom surface of the rolling cavity 8. When the roller 12 contacts the head screw 25, the roller 12 lifts the head screw 25. The laser ranging probe 6 collects the minimum distance L2 between it and the head of the head screw 25, while the diameter R of the roller 12 remains unchanged. Finally, the height of the head screw 25 is calculated to be (L1-L2-R). The roller 12 can detect the height of a head screw 25 through a head screw 25. The entire detection process is simple and efficient, and can detect the height of a row of multiple head screws 25 at the same time, which improves the detection speed and is easy to use.

[0047] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0048] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screw height detection device, characterized in that: It comprises a testing platform (1), wherein a pillar (2) is fixedly connected to one side edge of the top surface of the testing platform (1), and a height detection mechanism is fixedly connected to one side surface of the pillar (2); A detection auxiliary component is provided on the other side of the top surface of the detection platform (1), and a rolling lifting mechanism is provided inside the detection platform (1); The height detection mechanism specifically comprises: a vertical linear guide rail (3) fixed on a side surface of a column (2), a vertical linear motor (4) being movably connected to one side surface of the vertical linear guide rail (3), and a cross bar (5) being fixedly connected to one side surface of the vertical linear motor (4), a plurality of laser distance measuring probes (6) evenly distributed being fixedly connected to the bottom end surface of the cross bar (5) along its length direction, and a camera (7) being fixedly connected to one side edge position of the bottom end surface of the cross bar (5); The detection auxiliary component specifically comprises: a bottom plate (14) fixed on the top surface of the detection table (1), the top surface of the bottom plate (14) being fixedly connected to two parallel rotating support plates (13), and a rotating seat (15) being rotatably connected between the two rotating support plates (13), the top of the rotating seat (15) being fixedly connected to a material discharge mechanism, and one side of the rotating seat (15) being fixedly connected to a motor support plate (16), and one side of the motor support plate (16) being fixedly connected to a driving motor (17), and the output shaft of the driving motor (17) passing through the motor support plate (16) and being fixedly connected to the rotating seat (15); The material discharge mechanism specifically comprises: a strip plate (19) fixed on the top surface of the rotating seat (15), the top surface of the strip plate (19) being provided with a vertical groove (22), and a plurality of insertion holes (24) being symmetrically provided on the inner walls on both sides of the vertical groove (22), each of the insertion holes (24) being provided with a head screw (25) inside, a head clamping piece being provided on one side surface of the strip plate (19), and a driving piece being provided on the other side surface of the strip plate (19) for driving the head clamping piece and the head of the head screw (25) to perform relative displacement.

2. A screw height detection device according to claim 1, characterized in that: A limited support platform (18) is fixedly connected to the top end surface of the bottom plate (14) between the two rotating support plates (13).

3. A screw height detection device according to claim 2, characterized in that: The head clamping member specifically comprises: two strip lifting plates (27) fixed in parallel on one side of the strip plate (19); a concave plate (28) is provided on the outside of the strip lifting plate (27); and telescopic motors (29) are embedded in the upper and lower parts of the strip lifting plate (27); the output shafts of the two telescopic motors (29) are fixedly connected to the inner walls of the grooves of the corresponding concave plates (28); and the two opposite sides of the two concave plates (28) are symmetrically fixedly connected to the limiting plates (30); one side of the strip lifting plate (27) is fixedly connected to two parallel limiting slides (32); a limiting slide groove (31) is provided on one side of the strip plate (19) at a position corresponding to the limiting slide groove (32); and the limiting slide groove (32) is movably connected inside the limiting slide groove (31) and matches with the limiting slide groove (31).

4. A screw height detection device according to claim 3, characterized in that: The driving member specifically comprises: a stepper motor (23) fixed at a middle position inside the vertical slot (22); an output shaft of the stepper motor (23) passes through the inner wall of the vertical slot (22) and is fixedly connected to a driving gear (26); transmission racks (37) are symmetrically and movably connected to both sides of the driving gear (26); a stopper is provided inside the transmission rack (37); the transmission rack (37) is meshed with the driving gear (26); a connecting plate (33) is fixedly connected between the transmission rack (37) and the corresponding strip-shaped lifting plate (27); and rectangular grooves (34) for the connecting plate (33) to pass through are opened on the inner walls on both sides of the vertical slot (22).

5. A screw height detection device according to claim 4, characterized in that: The limiting member specifically comprises: an optical axis (36) penetrating the interior of the transmission rack (37); the top and bottom ends of the optical axis (36) are both fixedly connected to ear plates (35); and the ear plates (35) are fixedly connected to the other side surface of the strip plate (19).

6. A screw height detection device according to claim 1, characterized in that: The rolling lifting mechanism specifically comprises: a rolling cavity (8) provided inside the detection platform (1), transverse linear guide rails (9) symmetrically fixedly connected to the inner walls on both sides of the rolling cavity (8), and a transverse linear motor (10) movably connected to one side of the transverse linear guide rail (9), a shaft (11) fixedly connected between the two transverse linear motors (10), and a roller (12) rotatably connected to the outside of the shaft (11), the roller (12) in contact with the bottom end surface of the rolling cavity (8), and a transverse groove (21) is provided on the top end surface of the rolling cavity (8).

7. A screw height detection device according to claim 6, characterized in that: A limit support seat (20) is fixedly connected to the top end surface of the detection platform (1) on one side of the transverse groove (21).

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