A detection device for factory testing of ignition coils

Abstract

The present invention relates to the technical field of ignition coil testing. The present invention relates to a detection device for factory testing of ignition coils. The device comprises a fixing device and a detection device arranged on the top of the fixing device, wherein the detection device comprises a rotating mechanism, wherein the rotating mechanism comprises a test cylinder, and a slot is provided inside the test cylinder. When the present invention detects the flatness of the side wall of the ignition coil, when the recessed position of the ignition coil moves to the position of the clamping ring, the clamping ring slides to slide the marking gear, and the marking gear and the fixed tooth plate and the marking tooth plate cooperate to move the marking pen, so that one end of the marking pen fits with the side wall of the ignition coil, thereby completing the marking of the ignition coil. Compared with the common ignition coil detection device, the recessed and raised positions on the side wall of the ignition coil can be marked separately, so that the operator can trim the ignition coil according to the mark, and the operation is simple and convenient, which can save a lot of time for the operator.

Description

Technical Field

[0001] The invention relates to the technical field of ignition coil testing, in particular to a detection device used for factory testing of ignition coils. Background Art

[0002] As automobile gasoline engines develop towards high speed, high compression ratio, high power, low fuel consumption and low emissions, traditional ignition devices are no longer suitable for use requirements. The core components of the ignition device are the ignition coil and the switch device. By increasing the energy of the ignition coil, the spark plug can generate sparks of sufficient energy. This is the basic condition for the ignition device to adapt to the operation of modern engines. The ignition coil is installed on the engine in an inserted manner. In order to prevent the ignition coil from shaking on the engine, the hole groove on the engine is the same size as the ignition coil, so the flatness of the side wall of the ignition coil is required to be high. Therefore, a device for detecting the flatness of the side wall of the ignition coil is needed. The detection operation of the common detection device is more cumbersome, and it is impossible to effectively mark the uneven position on the ignition coil, which is not convenient for the later trimming of the ignition coil. Summary of the invention

[0003] The object of the present invention is to provide a detection device for factory testing of ignition coils to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, a detection device for factory testing of ignition coils is provided, comprising a fixing device and a detection device arranged on the top of the fixing device, the detection device comprising a rotating mechanism, the rotating mechanism comprising a test cylinder, a slot is provided inside the test cylinder, a detection mechanism is provided inside the test cylinder, the detection mechanism comprises a detection ring, a detection groove is provided on the side wall of the slot, a marking structure is provided on the inner wall of the test cylinder, when the ignition coil is inserted into the slot, the marking structure clamps and detects the side wall of the ignition coil, a transmission mechanism is provided inside the test cylinder, when the ignition coil slides into the slot, the transmission mechanism rotates the test cylinder, a pressing mechanism is provided at the bottom of the transmission mechanism, when the marking structure marks the side wall of the ignition coil, the pressing mechanism changes the rotation direction of the test cylinder.

[0005] As a further improvement of the present technical solution, the marking structure includes two clamping rings, positioning rods are inserted at both ends of the clamping rings, the positioning rods are fixedly connected to the detection ring, one end of the positioning rods is fixedly connected to a detection spring, and one end of the detection spring is fixedly connected to the clamping ring.

[0006] As a further improvement of the present technical solution, a marking rod is provided on one side of the clamping ring, the marking rod passes through the clamping ring, one end of the marking rod is sleeved with a sleeve, one end of the sleeve is fixedly connected to the detection ring, one end of the marking rod is fixedly connected to a marking spring, and one end of the marking spring is fixedly connected to the sleeve.

[0007] As a further improvement of the present technical solution, the marking structure also includes a marking pen, which passes through the clamping ring, and the bottom end of the marking pen is fixedly connected to a marking tooth plate, the bottom end of the marking tooth plate is meshed with a marking gear, the bottom end of the marking gear is meshed with a fixed tooth plate, and one end of the fixed tooth plate is fixedly connected to the detection ring.

[0008] As a further improvement of the present technical solution, the transmission mechanism includes a lifting plate, which is slidably arranged inside the slot, and the bottom end of the lifting plate is rotatably connected to a threaded rod, a threaded groove is provided at the bottom of the slot, and the threaded rod and the threaded groove are threadedly matched, and a rotating cylinder is provided at the bottom end of the threaded rod, the threaded rod and the rotating cylinder rotate synchronously, a rotating groove is provided at the bottom of the threaded groove, and the rotating cylinder is rotatably arranged inside the rotating groove.

[0009] As a further improvement of the present technical solution, a transmission shaft is provided for internal rotation of the test cylinder, the transmission shaft and the rotating cylinder are connected by a belt, the top of the transmission shaft is fixedly connected with a driving gear, one side of the driving gear is meshed with a gear ring, the driving gear is used to drive the gear ring to rotate, and the top of the gear ring is fixedly connected to the detection ring.

[0010] As a further improvement of the technical solution, a lifting spring is fixedly connected to the bottom end of the lifting plate, and the bottom end of the lifting spring is fixedly connected to the testing cylinder.

[0011] As a further improvement of the present technical solution, the pressing mechanism includes two shifting blocks, the top of the shifting blocks is fixedly connected to the clamping ring, the bottom end of the detection spring is sleeved with a sleeve block, the bottom end of the sleeve block is fitted with a pressure ring, the bottom end of the pressure ring is fixedly connected with a pressing spring, the bottom end of the pressing spring is fixedly connected to the test tube, and the two sides of the bottom end of the pressure ring are fixedly connected with a limiting frame, and one end of the limiting frame passes through the test tube.

[0012] As a further improvement of the present technical solution, the fixing device includes a fixing mechanism, the fixing mechanism includes a base, positioning columns are fixedly connected to the two sides of the top of the base, the test cylinder is rotatably set on one side of the positioning column, a reverse groove is opened on one side of the positioning column, a forward groove is opened on the top of the reverse groove, and a connecting groove is opened between the reverse groove and the forward groove. When the ignition coil is tested, one end of the limiting frame is located inside the forward groove, and a motor is fixedly set on one side of one of the positioning columns, and the output shaft of the motor rotates synchronously with the test cylinder.

[0013] As a further improvement of the present technical solution, the fixing device includes two positioning mechanisms, the positioning mechanism includes a pull rod, one end of the pull rod passes through the positioning column, one end of the pull rod is fixedly connected to a positioning block, when one end of the limiting frame moves to the inside of the reverse groove, the positioning block limits the movement of the limiting frame, one end of the pull rod is fixedly connected to a positioning spring, and one end of the positioning spring is fixedly connected to the positioning block.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the detection equipment for factory testing of ignition coils, when detecting the flatness of the side wall of the ignition coil, the ignition coil is inserted into the slot, and the clamping ring clamps the ignition coil under the action of the detection spring. When the raised position of the ignition coil moves to the position of the clamping ring, the marking spring makes one end of the marking rod fit on the side wall of the ignition coil to complete the marking; when the recessed position of the ignition coil moves to the position of the clamping ring, the clamping ring slides to make the marking gear slide, and the marking gear and the fixed tooth plate and the marking tooth plate cooperate to move the marking pen, so that one end of the marking pen fits on the side wall of the ignition coil, thereby completing the marking of the ignition coil. Compared with the common ignition coil detection device, the recessed and raised positions on the side wall of the ignition coil can be marked separately, which is convenient for the operator to trim the ignition coil according to the mark, and the operation is simple and convenient, which can save a lot of operator time.

[0016] 2. In the detection equipment used for factory testing of ignition coils, when the flatness of the side wall of the ignition coil is qualified, the test cylinder rotates in one direction to complete the unloading of the ignition coil; when the flatness of the side wall of the ignition coil is unqualified, the test cylinder rotates in another direction to complete the unloading of the ignition coil. Compared with the common ignition coil detection device, after the flatness of the side wall of the ignition coil is detected, the qualified and unqualified ones are distinguished, which is convenient for the operator to quickly sort out the ignition coils after the detection is completed, effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic structural diagram of the fixing device of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the fixing mechanism of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the positioning mechanism of the present invention;

[0021] Figure 5It is a structural schematic diagram of the detection device of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the rotating mechanism of the present invention;

[0023] Figure 7 It is one of the structural schematic diagrams of the detection mechanism of the present invention;

[0024] Figure 8 This is the second structural schematic diagram of the detection mechanism of the present invention;

[0025] Fig. 9 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0026] Fig.10 It is a structural schematic diagram of the pressing mechanism of the present invention.

[0027] The meaning of each number in the figure is:

[0028] 1. Fixing device;

[0029] 11. fixing mechanism; 111. base; 112. positioning column; 113. reverse groove; 114. forward groove; 115. connecting groove; 116. motor; 12. positioning mechanism; 121. pull rod; 122. positioning block; 123. positioning spring;

[0030] 2. Detection device;

[0031] 21. Rotating mechanism; 211. Test tube; 212. Slot; 213. Threaded groove; 214. Rotating groove; 215. Detection groove; 22. Detection mechanism; 221. Detection ring; 222. Positioning rod; 223. Clamping ring; 224. Detection spring; 225. Sleeve; 226. Marking rod; 227. Marking spring; 228. Marking pen; 229. Fixed tooth plate; 2291. Marking gear; 23. Transmission mechanism; 231. Lifting plate; 232. Lifting spring; 233. Threaded rod; 234. Rotating tube; 235. Active gear; 236. Gear ring; 237. Transmission shaft; 24. Pressing mechanism; 241. Dial block; 242. Sleeve block; 243. Pressing ring; 244. Pressing spring; 245. Limiting frame. DETAILED DESCRIPTION

[0032] 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.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] Example 1

[0035] See also Figure 1-Figure 10 As shown, the present embodiment aims to provide a detection device for factory testing of an ignition coil, comprising a fixing device 1 and a detection device 2 arranged on the top of the fixing device 1, wherein the detection device 2 comprises a rotating mechanism 21, wherein the rotating mechanism 21 comprises a test cylinder 211, wherein the test cylinder 211 is used to accommodate the ignition coil for testing, wherein a slot 212 is provided inside the test cylinder 211, wherein the slot 212 is used to accommodate the movement of the ignition coil, wherein a detection mechanism 22 is provided inside the test cylinder 211, wherein the detection mechanism 22 comprises a detection ring 221, wherein a detection ring 221 is provided on the side wall of the slot 212 ... The detection groove 215 is used to accommodate the rotation of the detection ring 221. The inner wall of the test cylinder 211 is provided with a marking structure. When the ignition coil is inserted into the slot 212, the marking structure clamps and detects the side wall of the ignition coil. The inside of the test cylinder 211 is provided with a transmission mechanism 23. When the ignition coil slides into the slot 212, the transmission mechanism 23 rotates the test cylinder 211. The bottom of the transmission mechanism 23 is provided with a pressing mechanism 24. When the marking structure marks the side wall of the ignition coil, the pressing mechanism 24 changes the rotation direction of the test cylinder 211.

[0036] The marking structure includes two clamping rings 223, the clamping rings 223 are used to clamp the side wall of the ignition coil, positioning rods 222 are inserted at both ends of the clamping rings 223, the positioning rods 222 are used to determine the moving trajectory of the clamping rings 223, the positioning rods 222 are fixedly connected to the detection ring 221, one end of the positioning rod 222 is fixedly connected to a detection spring 224, the detection spring 224 is used to provide a thrust to the clamping ring 223, and one end of the detection spring 224 is fixedly connected to the clamping ring 223;

[0037] A marking rod 226 is provided on one side of the clamping ring 223. The marking rod 226 is used to mark the raised position of the side wall of the ignition coil. The marking rod 226 passes through the clamping ring 223. One end of the marking rod 226 is sleeved with a sleeve 225. The sleeve 225 is used to determine the moving trajectory of the marking rod 226. One end of the sleeve 225 is fixedly connected to the detection ring 221. One end of the marking rod 226 is fixedly connected to a marking spring 227. The marking spring 227 is used to provide a thrust to the marking rod 226. One end of the marking spring 227 is fixedly connected to the sleeve 225.

[0038] The marking structure also includes a marking pen 228, which is used to mark the recessed position of the ignition coil. The marking pen 228 passes through the clamping ring 223. The bottom end of the marking pen 228 is fixedly connected with a marking tooth plate, which is used to drive the marking pen 228 to slide. The bottom end of the marking tooth plate is meshed with a marking gear 2291, which is used to drive the marking tooth plate to move. The bottom end of the marking gear 2291 is meshed with a fixed tooth plate 229, which is used to drive the marking gear 2291 to rotate. One end of the fixed tooth plate 229 is fixedly connected to the detection ring 221.

[0039] When testing the ignition coil, the ignition coil is inserted into the slot 212. During the process of inserting the ignition coil into the slot 212, the clamping ring 223 clamps and tightens the side wall of the ignition coil under the thrust of the detection spring 224 to prevent the ignition coil from shaking during the detection process.

[0040] When the raised position on the ignition coil moves to the position of the clamping ring 223, the raised position causes the clamping ring 223 to overcome the elastic force of the detection spring 224 and slide. At this time, the marking rod 226 fits the side wall of the ignition coil under the elastic force of the marking spring 227 to mark the raised position on the side wall of the ignition coil.

[0041] When the recessed position of the ignition coil moves to the position of the clamping ring 223, the detection spring 224 pushes the clamping ring 223 to move. At this time, the marking gear 2291 and the fixed tooth plate 229 move relative to each other, and the fixed tooth plate 229 causes the marking gear 2291 to rotate. The marking gear 2291 drives the marking pen 228 to move toward the position of the ignition coil through the marking tooth plate, thereby making one end of the marking pen 228 fit with the ignition coil to complete the marking of the recessed position of the ignition coil. Compared with the common ignition coil detection device, it can quickly and effectively detect the ignition coil and mark the raised and recessed positions on the ignition coil, so that the operator can trim the marked position after detection.

[0042] The transmission mechanism 23 includes a lifting plate 231, which is slidably arranged inside the slot 212. The bottom end of the lifting plate 231 is rotatably connected with a threaded rod 233. The lifting plate 231 is used to drive the threaded rod 233 to move. A threaded groove 213 is provided at the bottom of the slot 212. The threaded groove 213 is used to rotate the threaded rod 233 when the threaded rod 233 slides. The threaded rod 233 and the threaded groove 213 are threadedly matched. A rotating cylinder 234 is provided at the bottom of the threaded rod 233. The rotating cylinder 234 is used to accommodate the threaded rod 233 sliding up and down. The threaded rod 233 and the rotating cylinder 234 rotate synchronously. A clamping plate is fixedly connected to the bottom end of the threaded rod 233. The clamping plate and the rotating cylinder 234 are slidably connected. A rotating groove 214 is provided at the bottom of the threaded groove 213. The rotating groove 214 is used to accommodate the rotating cylinder 234 to rotate. The rotating cylinder 234 is rotatably arranged inside the rotating groove 214.

[0043] The test cylinder 211 is provided with a transmission shaft 237 for internal rotation. The transmission shaft 237 and the rotating cylinder 234 are connected by a belt. The top of the transmission shaft 237 is fixedly connected with a driving gear 235. The transmission shaft 237 is used to drive the driving gear 235 to rotate. A gear ring 236 is meshed on one side of the driving gear 235. The driving gear 235 is used to drive the gear ring 236 to rotate. The top of the gear ring 236 is fixedly connected with the detection ring 221. The gear ring 236 is used to drive the detection ring 221 to rotate.

[0044] The bottom end of the lifting plate 231 is fixedly connected with a lifting spring 232, and the lifting spring 232 is used to give the lifting plate 231 an upward thrust, and the bottom end of the lifting spring 232 is fixedly connected to the test tube 211;

[0045] When inspecting the side wall of the ignition coil, the ignition coil is inserted into the slot 212, and the bottom end of the ignition coil fits with the top end of the lifting plate 231. The ignition coil causes the lifting plate 231 to slide downward against the elastic force of the lifting spring 232, and the lifting plate 231 drives the threaded rod 233 to move downward. The threaded rod 233 rotates in cooperation with the thread groove 213, and the threaded rod 233 drives the rotating cylinder 234 to rotate. The rotating cylinder 234 drives the transmission shaft 237 to rotate through the belt, and the transmission shaft 237 drives the driving gear 235 to rotate. The driving gear 235 drives the gear ring 236 to rotate, and the gear ring 236 drives the detection ring 221 to rotate, thereby completing the multi-angle and multi-position inspection of the side wall of the ignition coil.

[0046] The pressing mechanism 24 includes two shifting blocks 241, the top of the shifting block 241 is fixedly connected to the clamping ring 223, the bottom end of the detection spring 224 is sleeved with a sleeve block 242, the shifting block 241 is used to drive the sleeve block 242 to move, the two sides of the inner wall of the sleeve block 242 are set as inclined surfaces, and the sleeve block 242 is driven to move downward when the shifting block 241 slides, and the bottom end of the sleeve block 242 is fitted with a pressing ring 243, the sleeve block 242 is used to drive the pressing ring 243 to move, and the bottom end of the pressing ring 243 is fixedly connected with a pressing spring 244, and the pressing spring 244 is used to give the pressing ring 243 an upward thrust, and the bottom end of the pressing spring 244 is fixedly connected to the test cylinder 211, and the two sides of the bottom end of the pressing ring 243 are fixedly connected with a limiting frame 245, and one end of the limiting frame 245 passes through the test cylinder 211;

[0047] The fixing device 1 includes a fixing mechanism 11, and the fixing mechanism 11 includes a base 111. Positioning columns 112 are fixedly connected to the two sides of the top of the base 111. The base 111 is used to determine the position of the positioning column 112. The positioning column 112 is used to determine the position of the test cylinder 211. The test cylinder 211 is rotatably arranged on one side of the positioning column 112. A reverse groove 113 is provided on one side of the positioning column 112. The reverse groove 113 is used to limit the moving trajectory of the limiting frame 245. A forward groove 114 is provided on the top of the reverse groove 113. The forward groove 114 is used to limit the moving trajectory of the limiting frame 245. A connecting groove 115 is provided between the reverse groove 113 and the forward groove 114. The connecting groove 115 is used to connect the reverse groove 113 and the forward groove 114. The ignition coil During the test, one end of the limiting frame 245 is located inside the forward groove 114, and a motor 116 is fixedly arranged on one side of one of the positioning columns 112. The motor 116 is used to drive the test cylinder 211 to rotate, and the output shaft of the motor 116 rotates synchronously with the test cylinder 211. The rotation switch of the motor 116 is arranged at the bottom of the test cylinder 211. When the lifting plate 231 touches the rotation switch, the motor 116 rotates in one direction; the reverse switch of the motor 116 is arranged inside the reverse groove 113, and when one end of the limiting frame 245 moves to the inside of the reverse groove 113, the reverse switch is touched. After the limiting frame 245 touches the reverse switch, the rotation direction of the motor 116 is changed. When the lifting plate 231 touches the rotation switch, the motor 116 rotates in the opposite direction;

[0048] When testing the ignition coil, if the flatness of the side wall of the ignition coil meets the standard, the clamping ring 223 will not slide, and one end of the limiting frame 245 is always inside the positive groove 114. When the ignition coil pushes the lifting plate 231 to move to the bottom of the slot 212, the rotation switch of the motor 116 is triggered, so that the test tube 211 drives the limiting frame 245 to rotate along the track of the positive groove 114, and the ignition coil is unloaded;

[0049] When the ignition coil is tested, if the flatness of the side wall of the ignition coil is unqualified, the clamping ring 223 slides, the clamping ring 223 drives the shifting block 241 to slide, the shifting block 241 makes the sleeve block 242 move downward, the sleeve block 242 makes the pressing ring 243 overcome the elastic force of the pressing spring 244 and slide downward, the pressing ring 243 drives the limiting frame 245 to slide downward, at this time, one end of the limiting frame 245 slides from the inside of the forward groove 114 through the connecting groove 115 to the inside of the reverse groove 113, and the electric trigger is triggered. The reverse switch of the motor 116 is activated when the ignition coil drives the lifting plate 231 to move to the bottom position of the slot 212, and the rotation switch of the motor 116 is triggered. At this time, the test tube 211 drives the limiting frame 245 to rotate along the trajectory of the reverse slot 113, so that the unqualified ignition coil is discharged from the other side. Compared with the common ignition coil detection device, it can quickly distinguish between qualified and unqualified ignition coils, and each ignition coil can be tested to ensure the yield rate before leaving the factory.

[0050] The fixing device 1 includes two positioning mechanisms 12, and the positioning mechanism 12 includes a pull rod 121, one end of the pull rod 121 passes through the positioning column 112, and one end of the pull rod 121 is fixedly connected to a positioning block 122, and the positioning block 122 is used to limit the sliding of the limiting frame 245. When one end of the limiting frame 245 moves to the inside of the reverse groove 113, the positioning block 122 limits the movement of the limiting frame 245. In order to push the positioning block 122 when the limiting frame 245 moves downward, the positioning block 122 is set to a wedge shape, and one end of the pull rod 121 is fixedly connected to a positioning spring 123, and the positioning spring 123 is used to give a pulling force to the pull rod 121, and one end of the positioning spring 123 is fixedly connected to the positioning block 122;

[0051] When it is detected that the flatness of the side wall of the ignition coil is unqualified, one end of the limiting frame 245 moves to the inside of the reverse groove 113. At this time, the pull rod 121, under the action of the positioning spring 123, causes the positioning block 122 to limit the movement of the limiting frame 245, thereby preventing the limiting frame 245 from sliding upward again after the ignition coil detection is completed.

[0052] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A detection device for factory testing of ignition coils, characterized in that: The invention comprises a fixing device (1) and a detection device (2) arranged on the top of the fixing device (1), the detection device (2) comprising a rotating mechanism (21), the rotating mechanism (21) comprising a test cylinder (211), a slot (212) being provided inside the test cylinder (211), a detection mechanism (22) being provided inside the test cylinder (211), the detection mechanism (22) comprising a detection ring (221), a detection groove (215) being provided on a side wall of the slot (212), and an inner wall of the test cylinder (211) A marking structure is provided, and when the ignition coil is inserted into the slot (212), the marking structure clamps and detects the side wall of the ignition coil; a transmission mechanism (23) is provided inside the test cylinder (211); when the ignition coil slides into the slot (212), the transmission mechanism (23) causes the test cylinder (211) to rotate; a pressing mechanism (24) is provided at the bottom of the transmission mechanism (23); when the marking structure marks the side wall of the ignition coil, the pressing mechanism (24) changes the rotation direction of the test cylinder (211); The transmission mechanism (23) comprises a lifting plate (231), the lifting plate (231) being slidably arranged inside the slot (212), the bottom end of the lifting plate (231) being rotatably connected to a threaded rod (233), the bottom of the slot (212) being provided with a threaded groove (213), the threaded rod (233) and the threaded groove (213) being threadably matched, a rotating cylinder (234) being arranged at the bottom end of the threaded rod (233), the threaded rod (233) and the rotating cylinder (234) rotating synchronously, a rotating groove (214) being provided at the bottom of the threaded groove (213), and the rotating cylinder (234) being rotatably arranged inside the rotating groove (214); A transmission shaft (237) is rotatably arranged inside the test cylinder (211); the transmission shaft (237) and the rotating cylinder (234) are connected via a belt; a driving gear (235) is fixedly connected to the top of the transmission shaft (237); a toothed ring (236) is meshed on one side of the driving gear (235); the driving gear (235) is used to drive the toothed ring (236) to rotate; and the top of the toothed ring (236) is fixedly connected to the detection ring (221).

2. The detection device for factory testing of ignition coils according to claim 1, characterized in that: The marking structure comprises two clamping rings (223), positioning rods (222) are inserted at both ends of the clamping rings (223), the positioning rods (222) and the detection ring (221) are fixedly connected, one end of the positioning rod (222) is fixedly connected to a detection spring (224), and one end of the detection spring (224) is fixedly connected to the clamping ring (223).

3. The detection device for factory testing of ignition coils according to claim 2, characterized in that: A marking rod (226) is provided on one side of the clamping ring (223), the marking rod (226) passes through the clamping ring (223), one end of the marking rod (226) is sleeved with a sleeve (225), one end of the sleeve (225) is fixedly connected to the detection ring (221), one end of the marking rod (226) is fixedly connected to a marking spring (227), and one end of the marking spring (227) is fixedly connected to the sleeve (225).

4. The detection device for factory testing of ignition coils according to claim 2, characterized in that: The marking structure also includes a marking pen (228), the marking pen (228) passes through the clamping ring (223), the bottom end of the marking pen (228) is fixedly connected to a marking tooth plate, the bottom end of the marking tooth plate is meshed with a marking gear (2291), the bottom end of the marking gear (2291) is meshed with a fixed tooth plate (229), and one end of the fixed tooth plate (229) is fixedly connected to the detection ring (221).

5. The detection device for factory testing of ignition coils according to claim 1, characterized in that: The bottom end of the lifting plate (231) is fixedly connected to a lifting spring (232), and the bottom end of the lifting spring (232) is fixedly connected to the testing cylinder (211).

6. The detection device for factory testing of ignition coils according to claim 2, characterized in that: The pressing mechanism (24) comprises two shifting blocks (241), the top end of the shifting blocks (241) is fixedly connected to the clamping ring (223), the bottom end of the detection spring (224) is sleeved with a sleeve block (242), the bottom end of the sleeve block (242) is fitted with a pressure ring (243), the bottom end of the pressure ring (243) is fixedly connected to a pressing spring (244), the bottom end of the pressing spring (244) is fixedly connected to the test tube (211), and the two sides of the bottom end of the pressure ring (243) are fixedly connected to limiting frames (245), and one end of the limiting frame (245) passes through the test tube (211).

7. The detection device for factory testing of ignition coils according to claim 6, characterized in that: The fixing device (1) comprises a fixing mechanism (11), the fixing mechanism (11) comprises a base (111), positioning columns (112) are fixedly connected to both sides of the top of the base (111), the test cylinder (211) is rotatably arranged on one side of the positioning column (112), a reverse groove (113) is provided on one side of the positioning column (112), a forward groove (114) is provided at the top of the reverse groove (113), a connecting groove (115) is provided between the reverse groove (113) and the forward groove (114), and when the ignition coil is tested, one end of the limiting frame (245) is located inside the forward groove (114), a motor (116) is fixedly arranged on one side of one of the positioning columns (112), and an output shaft of the motor (116) and the test cylinder (211) rotate synchronously.

8. The detection device for factory testing of ignition coils according to claim 7, characterized in that: The fixing device (1) comprises two positioning mechanisms (12), wherein the positioning mechanism (12) comprises a pull rod (121), one end of the pull rod (121) passes through a positioning column (112), one end of the pull rod (121) is fixedly connected to a positioning block (122), when one end of the limiting frame (245) moves to the inside of the reverse groove (113), the positioning block (122) limits the movement of the limiting frame (245), one end of the pull rod (121) is fixedly connected to a positioning spring (123), and one end of the positioning spring (123) is fixedly connected to the positioning block (122).

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