Spark plug rotation detection device

Abstract

A spark plug rotation detection device disclosed by the utility model comprises a workbench, a feeding turntable, a visual detection device and a rotation detection driving unit, the rotation detection driving unit comprises a mounting rack, a driving rod, a rotation driving device and a jacking driving device, the mounting rack is arranged on a to-be-detected area, the mounting rack is provided with a centering sleeve, and the driving rod is arranged on the centering sleeve. The driving rod and the centering sleeve are matched in a sleeving manner and are rotationally connected; the feeding turntable is provided with a bearing seat, and the feeding turntable rotates and moves relative to the workbench; a jacking rod is arranged at the movable end of the jacking driving device, a supporting cavity and a tool head are arranged at the opposite ends of the jacking rod and the driving rod correspondingly, and an avoiding groove is formed in the tool head; the detection end of the visual detection device faces the to-be-detected area of the workbench. The spark plug rotation detection device prevents the side electrode and the central electrode of the spark plug body from being damaged due to mistaken collision, can comprehensively detect the appearance of the spark plug body, does not need manual material taking, and improves the detection efficiency and the accuracy of the detection result.

Description

Technical Field

[0001] The utility model relates to the technical field of spark plug production, in particular to a spark plug rotation detection device. Background Art

[0002] The spark plug is an important component of the gasoline engine ignition system. It can introduce high voltage electricity into the combustion chamber and make it jump over the electrode gap to generate sparks, thereby igniting the combustible mixture in the cylinder. It is mainly composed of a wire nut, an insulator, a wire screw, a center electrode, a side electrode and a shell, and the side electrode is welded to the shell. For example, the utility model patent with the announcement number CN201450229U discloses a high-temperature resistant spark plug side electrode, including a spark plug metal shell, a center electrode and a side electrode. The side electrode is welded to the spark plug metal shell, and the port of the spark plug metal shell has an inward closing.

[0003] After the spark plug is produced and placed in the spark plug socket and sent to the inspection position, it is manually held for visual inspection or mechanical clamps are used to grasp the spark plug for camera inspection. The manual inspection method has a large detection error rate and an incomplete inspection surface. In the process of mechanical clamping the spark plug, the mechanical clamp may squeeze the top of the spark plug excessively, causing damage to the side electrode and center electrode of the spark plug. For this reason, we propose a spark plug rotation detection device to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a spark plug rotation detection device designed to solve the deficiencies of the above-mentioned technology. The tooling head is provided with an avoidance groove to prevent the side electrodes and the center electrode of the spark plug body from being damaged due to accidental collision. The appearance of the spark plug body can be detected more comprehensively without manual material collection, thereby improving the detection efficiency and the accuracy of the detection results.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a spark plug rotation detection device, including a workbench, a feeding turntable, a visual detection device, and a rotation detection drive unit, the workbench is provided with a waiting inspection area, the rotation detection drive unit includes a mounting frame, a driving rod, a rotation drive device, and a jacking drive device, the mounting frame is arranged on the waiting inspection area, and the mounting frame is provided with a centering sleeve, the driving rod and the centering sleeve are sleeve-fitted and rotationally connected, and the rotation drive device drives the driving rod to rotate relative to the centering sleeve;

[0006] The feeding turntable is provided with at least one bearing seat for loading the spark plug body, and the feeding turntable is rotatable relative to the workbench, and is used to send the bearing seat to the inspection area so that the bearing seat corresponds to the driving rod;

[0007] The lifting drive device is located below the feeding turntable, and a lifting rod is provided at the movable end of the lifting drive device, and the lifting rod is coaxially arranged with the driving rod, and the opposite ends of the lifting rod and the driving rod are respectively provided with a supporting cavity and a tooling head, the supporting cavity is used to support the bottom end of the spark plug body, the tooling head is plugged into the port at the top end of the spark plug body, and the tooling head is provided with an avoidance groove for accommodating the side electrode and the center electrode of the spark plug body;

[0008] The visual inspection device is arranged at a position outside the feeding turntable relative to the inspection area, and the inspection end of the visual inspection device faces the inspection area of ​​the workbench.

[0009] Preferably, the outer diameter of the feeding turntable is larger than the outer diameter of the workbench, the edge portion of the feeding turntable is located on the outside of the workbench, and the edge portion of the feeding turntable is penetrated by a plurality of mounting holes evenly distributed in a circular array, and the bearing seat is installed in the corresponding mounting holes.

[0010] Preferably, a transmission assembly is arranged between the movable end of the rotary drive device and the drive rod, and the transmission assembly includes a driving pulley, a driven pulley, and a synchronous belt body sleeved between the driving pulley and the driven pulley, the driving pulley is arranged on the movable end of the rotary drive device, and the driven pulley is arranged on the drive rod.

[0011] Preferably, a first bearing sleeve is provided on the inner wall of the centering sleeve, the first bearing sleeve is sleeved on the outer wall of the driving rod, and the driven pulley is provided on the outer wall of the first bearing sleeve.

[0012] Preferably, a mounting portion is provided at the bottom end of the driving rod, the mounting portion is detachably connected to the tooling head, and an elastic member is provided between the mounting portion and the driven pulley.

[0013] Preferably, the driven pulley is provided with a sensing portion, the mounting frame is provided with a sensing device, the sensing end of the sensing device has a sensing space for the sensing portion to pass through, and the sensing device is electrically connected to the rotary drive device.

[0014] Preferably, the rotary inspection drive unit further comprises a lifting drive device, wherein the lifting drive device is disposed on the mounting frame, and the lifting drive device drives the drive rod to move up and down along its axial direction.

[0015] Preferably, a driving frame is provided at the movable end of the lifting drive device, a driving disk is provided at the top end of the driving rod, and the driving frame abuts against the bottom surface of the driving disk so that the driving disk can be detachably provided on the driving frame.

[0016] Preferably, the movable end of the jacking drive device is also provided with a connecting frame, and a second bearing sleeve is provided on the connecting frame. The jacking rod is fixedly connected to the inner ring of the second bearing sleeve so that the jacking rod is rotatably connected to the connecting frame.

[0017] Preferably, the visual inspection device is provided with a lighting device, and the light-emitting side of the lighting device faces the area to be inspected of the workbench.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model discloses a spark plug rotation detection device. The material conveying turntable stops rotating after transferring the bearing seat loaded with the spark plug body to the inspection area. At this time, the opposite ends of the ejector rod and the driving rod correspond to the positions of the spark plug body on the bearing seat. The tooling head of the driving rod is inserted into the port of the spark plug body. The tooling head is provided with an avoidance groove. The avoidance groove accommodates the side electrode and the center electrode of the spark plug body, limits the top of the spark plug body, and prevents the side electrode and the center electrode of the spark plug body from being damaged due to accidental collision when the tooling head and the spark plug body are docked. The lifting drive device drives the lifting rod to move upward to make the supporting rod The support cavity supports the bottom end of the spark plug body, and the jacking drive device pushes the spark plug body out of the bearing seat through the jacking rod. The driving rod moves upward with the spark plug body relative to the centering sleeve until the spark plug body is separated from the bearing seat. The detection end of the visual inspection device faces the inspection area to be inspected on the workbench to perform an appearance inspection on the spark plug body ejected from the bearing seat, and the rotating drive device drives the driving rod to rotate relative to the centering sleeve so that the spark plug body restricted by the tooling head rotates with the driving rod. The inspection device can more comprehensively inspect the appearance of the spark plug body without manual material removal, thereby improving the inspection efficiency and the accuracy of the inspection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the detection device in the embodiment is shown in FIG. Figure 1 ;

[0021] Figure 2 The structure of the detection device in the embodiment is shown in FIG. Figure 2 ;

[0022] Figure 3 is a cross-sectional view of the detection device in the embodiment Figure 1 ;

[0023] Figure 4 is a cross-sectional view of the detection device in the embodiment Figure 2 ;

[0024] Figure 5 2 is a cross-sectional view of the driving rod and the centering sleeve in the embodiment.

[0025] In the figure: 1. spark plug body; 101. port; 102. side electrode; 103. center electrode; 2. workbench; 201. inspection area; 3. feeding turntable; 301. mounting hole; 4. visual inspection device; 401. lighting device; 5. mounting frame; 501. centering sleeve; 502. first bearing sleeve; 503. induction device; 504. induction space; 505. induction sensor; 6. driving rod; 601. driving surface; 602. installation 603, elastic member; 604, drive plate; 7, rotation drive device; 8, lifting drive device; 801, connecting frame; 802, second bearing sleeve; 9, lifting drive device; 901, drive frame; 10, bearing seat; 1001, bearing groove; 11, lifting rod; 1101, supporting cavity; 12, tooling head; 1201, avoidance groove; 13, driving pulley; 14, driven pulley; 1401, induction unit; 15, synchronous belt body. DETAILED DESCRIPTION

[0026] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.

[0027] refer to Figures 1 to 5 A spark plug rotation detection device comprises a workbench 2, a feeding turntable 3, a visual detection device 4, and a rotation detection drive unit. The workbench 2 is provided with a to-be-detected area 201. The rotation detection drive unit comprises a mounting frame 5, a driving rod 6, a rotation drive device 7, a lifting drive device 9, and a lifting drive device 8. The driving rod 6, the rotation drive device 7, and the lifting drive device 9 are all arranged on the mounting frame 5. The mounting frame 5 is arranged on the to-be-detected area 201, and the mounting frame 5 is provided with a centering sleeve 501. The inner wall of the centering sleeve 501 is provided with a first bearing sleeve 502. The outer ring of the first bearing sleeve 502 is limited on the inner wall of the centering sleeve 501. The inner ring of the first bearing sleeve 502 is sleeved on the outer wall of the driving rod 6, so that the driving rod 6 and the centering sleeve 501 are sleeved and rotatably connected. Two driving surfaces 601 are symmetrically arranged on the outer wall of the driving rod 6 . The two driving surfaces 601 are in contact with the inner ring of the first bearing sleeve 502 to guide the driving rod 6 to slide up and down on the first bearing sleeve 502 .

[0028] A transmission assembly is arranged between the movable end of the rotary drive device 7 and the driving rod 6, and the transmission assembly includes a driving pulley 13, a driven pulley 14, and a synchronous belt body 15 sleeved between the driving pulley 13 and the driven pulley 14. The driving pulley 13 is arranged on the movable end of the rotary drive device 7, and the driven pulley 14 is arranged on the outer wall of the first bearing sleeve 502. The rotary drive device 7 is a rotary motor. The rotary drive device 7 drives the driving pulley 13 to rotate, drives the synchronous belt body 15 and the driven pulley 14 to rotate, thereby driving the driving rod 6 to rotate relative to the centering sleeve 501; preferably, the driven pulley 14 is provided with a sensor The sensing part 1401 and the mounting frame 5 are provided with a sensing device 503, the sensing end of the sensing device 503 has a sensing space 504 for the sensing part 1401 to pass through, the sensing part 1401 can be a sensing metal, the sensing device 503 can be a metal sensor, the sensing device 503 is electrically connected to the rotating drive device 7, when the sensing part 1401 rotates with the synchronous pulley and enters the sensing space 504, the sensing end of the sensing device 503 senses the sensing part 1401, the sensing device 503 triggers the origin signal, stops the rotating drive device 7 and stops the driven pulley 14, so as to reset the angular position of the driving rod 6.

[0029] The movable end of the lifting drive device 9 is provided with a driving frame 901, and the top end of the driving rod 6 is provided with a driving disk 604. The driving frame 901 is in contact with the bottom surface of the driving disk 604 so that the driving disk 604 can be detachably arranged on the driving frame 901. The bottom end of the driving rod 6 is provided with a mounting portion 602, and an elastic member 603 is provided between the mounting portion 602 and the driven pulley 14. The elastic member 603 is a spring structure. The elastic member 603 is sleeved on the driving rod 6 so that the driving rod 6 has a tendency to extend downward. The lifting drive device 9 can be a telescopic cylinder or an electric push rod. The lifting drive device 9 drives the driving frame 901 to move downward, and the elastic member 603 recovers its deformation to make the driving rod 6 move downward relative to the centering sleeve 501. Move until the bottom surface of the driving disk 604 abuts against the driving frame 901, and the driving frame 901 prevents the driving rod 6 from continuing to slide downward, or the lifting driving device 9 drives the driving frame 901 to move upward, and the driving frame 901 drives the driving rod 6 to move upward relative to the centering sleeve 501 through the driving disk 604; Preferably, a sensor 505 is provided on the mounting frame 5, and the sensor 505 is used to control the lifting driving device 9. The sensor 505 can be a metal sensor, and the driving frame 901 is an inductive metal. When the driving frame 901 moves to a position corresponding to the sensing end of the sensor 505, the sensor 505 triggers a signal to control the lifting driving device 9 to stop so as to reset the height position of the driving rod 6.

[0030] The feeding turntable 3 is located below the workbench 2. The outer diameter of the feeding turntable 3 is larger than the outer diameter of the workbench 2. The edge of the feeding turntable 3 is located outside the workbench 2. The edge of the feeding turntable 3 is penetrated by a plurality of mounting holes 301 evenly distributed in a circular array. The mounting holes 301 are installed with a bearing seat 10, so that the feeding assembly can be installed with one or more bearing seats 10 according to needs. The bearing seat 10 is penetrated by a bearing groove 1001, and the bearing groove 1001 is matched with the outer shell of the spark plug body 1 in a concave-convex manner, so that the bearing seat 10 can load the spark plug body 1, and the top end of the spark plug body 1 extends out of the top surface of the bearing seat 10, and the bottom end of the spark plug body 1 extends out of the bottom surface of the bearing seat 10. The feeding turntable 3 rotates relative to the workbench 2, and is used to deliver the supporting seat 10 to the inspection area 201 so that the supporting seat 10 corresponds to the driving rod 6. Preferably, the feeding turntable 3 is driven by an external motor, and the transport turntable stops rotating after transferring the supporting seat 10 loaded with the spark plug body 1 to the inspection area 201 to facilitate subsequent inspection operations.

[0031] The visual inspection device 4 is arranged on the outer side of the feeding turntable 3 at a position relative to the inspection area 201. The visual inspection device 4 can be a detection camera. The detection end of the visual inspection device 4 faces the inspection area 201 of the workbench 2. Preferably, the visual inspection device 4 is provided with a lighting device 401. The light-emitting side of the lighting device 401 faces the inspection area 201 of the workbench 2 to provide light, so that the visual inspection device 4 can collect clearer images.

[0032] The jacking drive device 8 is located below the edge of the feeding turntable 3. The jacking drive device 8 can be a telescopic cylinder or an electric push rod. The movable end of the jacking drive device 8 is provided with a jacking rod 11. The jacking rod 11 is coaxially arranged with the driving rod 6, and the opposite ends of the jacking rod 11 and the driving rod 6 are respectively provided with a supporting cavity 1101 and a tooling head 12. The inner cavity wall of the supporting cavity 1101 is a conical cavity, and the mounting part 602 is detachably connected to the tooling head 12. Preferably, the mounting part 602 is plug-fitted with the top of the tooling head 12 and fixed by bolts. When the support base 10 loaded with the spark plug body 1 stops in the inspection area 201, the opposite ends of the ejector rod and the drive rod 6 correspond to the position of the spark plug body 1 on the support base 10, and the lifting drive device 9 lowers the drive frame 901, so that the drive rod 6 drives the tool head 12 to dock with the top of the spark plug body 1 under the action of the elastic member 603, and the tool head 12 is inserted into the port 101 at the top of the spark plug body 1, and the tool head 12 is provided with an avoidance groove 1201 for accommodating the side electrode 102 and the center electrode 103 of the spark plug body 1, which limits the top of the spark plug body 1 and prevents the tool head 12 from docking with the top of the spark plug body 1. When the spark plug body 1 is docked, the side electrode 102 and the center electrode 103 of the spark plug body 1 are damaged due to accidental collision. The lifting rod 11 is driven upward by the lifting drive device 8 so that the supporting cavity 1101 supports the bottom end of the spark plug body 1. The lifting drive device 8 pushes the spark plug body 1 out of the supporting seat 10 through the lifting rod 11, and the driving rod 6 moves upward with the spark plug body 1 relative to the centering sleeve 501. During this process, the elastic member 603 enables the tooling head 12 to have a pre-tightening force on the top of the spark plug body 1, ensuring that the spark plug body 1 is firmly positioned between the tooling head 12 and the supporting cavity 1101.

[0033] Until the spark plug body 1 is separated from the bearing seat 10, the detection end of the visual detection device 4 performs an appearance detection on the spark plug body 1 that is ejected from the bearing seat 10, and the rotation drive device 7 drives the drive rod 6 to rotate relative to the centering sleeve 501 so that the spark plug body 1 restricted by the tooling head 12 rotates with the drive rod 6. Preferably, the movable end of the lifting drive device 8 is also provided with a connecting frame 801, and a second bearing sleeve 802 is provided on the connecting frame 801. The outer ring of the second bearing sleeve 802 is fixedly connected to the connecting frame 801, and the lifting rod 11 is fixedly connected to the inner ring of the second bearing sleeve 802. The lifting rod 11 is rotatably connected to the connecting frame 801. When the rotating tooling head 12 drives the spark plug body 1 to rotate, the lifting rod 11 rotates with the spark plug body 1 to prevent the lifting rod 11 from interfering with the rotational activity of the spark plug body 1 that is ejected from the supporting seat 10. During the rotation of the spark plug body 1 located above the supporting seat 10, the visual inspection device 4 can collect images of the spark plug body 1 at different angles, so that the inspection device can more comprehensively detect whether there are defects in the appearance of the spark plug body 1, without the need for manual material collection, thereby improving the inspection efficiency and the accuracy of the inspection results.

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A spark plug rotation detection device, characterized in that: The invention comprises a workbench (2), a feeding turntable (3), a visual inspection device (4), and a rotary inspection drive unit. The workbench (2) is provided with an inspection area (201). The rotary inspection drive unit comprises a mounting frame (5), a driving rod (6), a rotary driving device (7), and a lifting driving device (8). The mounting frame (5) is arranged on the inspection area (201), and the mounting frame (5) is provided with a centering sleeve (501). The driving rod (6) and the centering sleeve (501) are sleeve-fitted and rotationally connected. The rotary driving device (7) drives the driving rod (6) to rotate relative to the centering sleeve (501). The feeding turntable (3) is provided with at least one bearing seat (10) for loading the spark plug body (1), and the feeding turntable (3) is rotatable relative to the workbench (2) and is used to feed the bearing seat (10) to the inspection area (201) so that the bearing seat (10) corresponds to the driving rod (6); The lifting drive device (8) is located below the feeding turntable (3), and a lifting rod (11) is provided at the movable end of the lifting drive device (8). The lifting rod (11) is coaxially arranged with the driving rod (6), and the lifting rod (11) and the driving rod (6) are respectively provided with a support cavity (1101) and a tool head (12) at the opposite ends thereof, wherein the support cavity (1101) is used to support the bottom end of the spark plug body (1), and the tool head (12) is inserted into the port (101) at the top end of the spark plug body (1), and the tool head (12) is provided with an avoidance groove (1201) for accommodating the side electrode (102) and the center electrode (103) of the spark plug body (1); The visual inspection device (4) is arranged at a position outside the feeding turntable (3) relative to the inspection area (201), and the inspection end of the visual inspection device (4) faces the inspection area (201) of the workbench (2).

2. A spark plug rotation detection device according to claim 1, characterized in that: The outer diameter of the feeding turntable (3) is greater than the outer diameter of the workbench (2); the edge portion of the feeding turntable (3) is located outside the workbench (2); and the edge portion of the feeding turntable (3) is penetrated by a plurality of mounting holes (301) evenly distributed in a circular array, and the bearing seat (10) is installed in the corresponding mounting hole (301).

3. A spark plug rotation detection device according to claim 1, characterized in that: A transmission assembly is arranged between the movable end of the rotary drive device (7) and the drive rod (6), the transmission assembly comprising a driving pulley (13), a driven pulley (14), and a synchronous belt body (15) sleeved between the driving pulley (13) and the driven pulley (14), the driving pulley (13) being arranged on the movable end of the rotary drive device (7), and the driven pulley (14) being arranged on the drive rod (6).

4. A spark plug rotation detection device according to claim 3, characterized in that: The inner wall of the centering sleeve (501) is provided with a first bearing sleeve (502), the first bearing sleeve (502) is sleeved on the outer wall of the driving rod (6), and the driven pulley (14) is provided on the outer wall of the first bearing sleeve (502).

5. The spark plug rotation detection device according to claim 3, characterized in that: A mounting portion (602) is provided at the bottom end of the driving rod (6), the mounting portion (602) is detachably connected to the tooling head (12), and an elastic member (603) is provided between the mounting portion (602) and the driven pulley (14).

6. A spark plug rotation detection device according to claim 3, characterized in that: The driven pulley (14) is provided with a sensing portion (1401), the mounting frame (5) is provided with a sensing device (503), the sensing end of the sensing device (503) has a sensing space (504) for the sensing portion (1401) to pass through, and the sensing device (503) is electrically connected to the rotation driving device (7).

7. The spark plug rotation detection device according to claim 1, characterized in that: The rotary inspection drive unit also includes a lifting drive device (9), which is arranged on the mounting frame (5) and drives the driving rod (6) to move up and down along its axial direction.

8. A spark plug rotation detection device according to claim 7, characterized in that: A driving frame (901) is provided at the movable end of the lifting drive device (9), a driving disk (604) is provided at the top end of the driving rod (6), and the driving frame (901) abuts against the bottom surface of the driving disk (604) so ​​that the driving disk (604) can be detachably arranged on the driving frame (901).

9. The spark plug rotation detection device according to claim 1, characterized in that: The movable end of the lifting drive device (8) is also provided with a connecting frame (801), and a second bearing sleeve (802) is provided on the connecting frame (801). The lifting rod (11) is fixedly connected to the inner ring of the second bearing sleeve (802) so that the lifting rod (11) is rotatably connected to the connecting frame (801).

10. The spark plug rotation detection device according to claim 1, characterized in that: The visual inspection device (4) is provided with an illumination device (401), and the light-emitting side of the illumination device (401) faces the inspection area (201) of the workbench (2).

Images