Novel special detection equipment for engine valve

Abstract

The utility model belongs to the technical field of engine fitting detection, and particularly relates to a novel special detection device for an engine valve, which comprises a feeding module, a detection module and a discharging module, and is characterized in that the feeding module consists of a valve rod placing frame and a multi-axis manipulator arranged above the valve rod placing frame; the detection module comprises a jumping assembly, a gauge total length module, a rod diameter assembly and a camera assembly which are sequentially and adjacently installed, a carrying module is installed on one side of the jumping assembly, the gauge total length module, the rod diameter assembly and the camera assembly, and electrical mechanisms in the feeding module, the detection module and the discharging module are electrically connected with a PLC module. The feeding module, the detection module and the discharging module can achieve automation of valve rod specification detection, effectively improve the accuracy of detection data, improve the detection efficiency and save the labor cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine parts detection, and in particular relates to a novel engine valve special detection device. Background Art

[0002] The valve of an internal combustion engine is a key component of an automobile engine and the central hub for completing power drive. The operating temperature of the intake valve is in the range of 300℃-400℃, and that of the exhaust valve is 600℃-750℃. The operating temperature of the exhaust valve of some diesel engines reaches about 850℃. It can be seen that the valve is in a high-temperature and highly corrosive combustion gas, and at the same time it must withstand repeated effects of tension, compression and impact. In such a harsh service environment, the valve is required to have good comprehensive mechanical properties. For example, the detection of rod diameter, cone surface, disc end face, disc outer circle, and lock frame groove. The existing detection technology mainly relies on manual detection using a micrometer, and the detection efficiency is low. Utility Model Content

[0003] In view of the above problems, the purpose of the utility model is to provide a new type of engine valve dedicated detection equipment to solve the problems that the traditional method of valve detection by personnel is not comprehensive enough, the accuracy is not accurate enough, and the labor cost is high.

[0004] To achieve the above objectives, the utility model adopts the following technical solution: a new type of engine valve-specific detection equipment, including a loading module, a detection module, and a unloading module. The loading module is composed of a valve stem placement rack and a multi-axis manipulator arranged above the valve stem placement rack. The detection module includes a jump assembly, a gauge total length module, a rod diameter assembly, and a camera assembly installed adjacent to each other in sequence. A conveying module is installed on one side of the jump assembly, the gauge total length module, the rod diameter assembly, and the camera assembly. The electrical mechanisms in the loading module, the detection module, and the unloading module are electrically connected to a PLC module.

[0005] The beneficial effects of the utility model are as follows: the loading module, the detection module and the unloading module can realize the automation of the valve stem specification detection, effectively improve the accuracy of the detection data, improve the detection efficiency and save the labor cost.

[0006] In order to realize automatic removal of valve stems in multiple small inspection modules;

[0007] As a further improvement of the above technical solution: the transport module includes a base frame, a linear guide rail and a linear servo motor are arranged on the top of the base frame, a mobile frame is installed on the slide of the linear guide rail, the mobile frame is connected to the slide of the linear servo motor, a transport Z-axis cylinder is installed on the mobile frame, and a clamping cylinder is installed on the piston rod of the transport Z-axis cylinder.

[0008] The beneficial effect of this improvement is that the clamping claw cylinder can translate and rise and fall in a plurality of small detection modules, thereby realizing automatic removal of the valve stem.

[0009] In order to realize automatic detection of valve stem runout;

[0010] As a further improvement of the above technical solution: the jumping assembly includes a frame body, a vertical frame and a pressure wheel cylinder are installed on the frame body, a valve stem clamping seat is installed on the vertical frame, a disk outer circle sensor, a rod sensor and a cone surface sensor are installed on the vertical frame from top to bottom, the piston rod of the pressure wheel cylinder is connected to a moving seat, a linear guide mechanism is arranged between the moving seat and the frame body, a stepper motor and a disk end cylinder are installed on the moving seat, the stepper motor is transmission-connected to the pressure wheel, the pressure wheel is rotatably installed on the moving seat, and a disk end surface sensor is installed on the piston rod of the disk end cylinder.

[0011] The beneficial effect of this improvement is that after the valve stem rotates driven by the pressure wheel 1, multiple displacement sensors automatically detect the vibration degree of different positions of the valve stem.

[0012] In order to ensure the stable rotation of the valve stem under the drive of the pressure wheel;

[0013] As a further improvement of the above technical solution: two bearings are installed on the valve stem clamping seat so as to rotate adjacently on the left and right sides.

[0014] The beneficial effect of this improvement is that after the valve stem is placed between the two bearings, the pressure wheel can stably drive the valve stem to rotate.

[0015] In order to realize automatic detection of valve stem length;

[0016] As a further improvement of the above technical solution: the gauge total length module includes a frame body two, a downward pressure cylinder and a support frame are installed on the frame body two, an upper limit seat and a lifting cylinder are installed on the support frame, a lower limit seat is installed on the piston rod of the lifting cylinder, a through hole for inserting a valve stem is opened on the upper limit seat, the piston rod of the downward pressure cylinder is connected to the downward pressure bracket, a linear guide mechanism is arranged between the downward pressure bracket and the frame body two, and a full-length sensor is installed on the side of the downward pressure bracket facing the support frame.

[0017] The beneficial effect of this improvement is that the valve stem moves upward under the drive of the lifting cylinder and contacts the full-length sensor, thereby automatically detecting the length of the valve stem in a straight line.

[0018] In order to realize automatic detection of valve stem diameter;

[0019] As a further improvement of the above technical solution: the rod diameter assembly includes a frame body three, a clamping cylinder and a vertical support frame are installed on the frame body three, a linear guide rail two is installed on the vertical support frame, the linear guide rail two is connected to the servo motor for transmission, a laser diameter gauge is installed on the slide seat of the linear guide rail two, and a clamping tooling is installed on the piston rod of the clamping cylinder.

[0020] The beneficial effect of this improvement is that after the valve stem is clamped by the clamping tooling, the laser diameter measuring instrument on one side moves vertically to detect the diameter of the valve stem.

[0021] In order to improve the measurement effect of valve stem diameter;

[0022] As a further improvement of the above technical solution: a point support frame is installed on the frame body, and the point support frame is a bearing rotatably installed on the bracket, and the point support frame is located vertically below the clamping tooling.

[0023] The beneficial effect of this improvement is that the point-type support frame plays the role of point-supporting the bottom end of the valve stem, which can ensure that the laser diameter gauge can effectively measure the diameter of the bottom end of the valve stem.

[0024] In order to automatically obtain the surface image data of the valve stem;

[0025] As a further improvement of the above technical solution: the camera assembly includes a frame body four, on which are mounted a pressure wheel cylinder two and a stand two, on which are mounted a valve stem clamp seat two and a lower support seat, the valve stem clamp seat two has the same structure as the valve stem clamp seat one, a moving seat two is mounted on the piston rod of the pressure wheel cylinder two, a linear guide mechanism is arranged between the moving seat two and the frame body four, a stepper motor two is mounted on the moving seat two, the stepper motor two is transmission-connected to the pressure wheel two, the pressure wheel two is rotatably mounted on the moving seat two, and a camera is mounted on one side of the valve stem clamp seat two.

[0026] The beneficial effect of this improvement is that when the valve stem rotates driven by the second pressure wheel, the camera completely captures the surface image data of the valve stem.

[0027] In order to realize automatic classification and unloading of valve stems;

[0028] As a further improvement of the above technical solution: the unloading module includes a slide, which is installed on the KK module. A conveyor is arranged behind the slide. The conveyor is composed of a plurality of belt conveyors arranged adjacent to each other on the left and right to form a slide mechanism. A proximity switch is installed on one end of the conveyor facing the slide.

[0029] The beneficial effect of this improvement is that the KK module drives the slideway to translate, and the valve stems with different detection results are sent to the slideways on different conveyors.

[0030] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0032] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0033] Figure 3 This is a structural schematic diagram of the feeding module in the utility model;

[0034] Figure 4 This is a structural schematic diagram of the material feeding module in the utility model;

[0035] Figure 5 It is a structural schematic diagram of the transport module in the utility model;

[0036] Figure 6 It is a structural schematic diagram of the jumping component in the utility model;

[0037] Figure 7 This is a structural schematic diagram of the overall length module of the middle gauge of the utility model;

[0038] Figure 8 This is a schematic diagram of the structure of the middle rod diameter assembly of the utility model;

[0039] Fig. 9 It is a structural schematic diagram of the camera assembly in the utility model;

[0040] In the figure: 1. Loading module; 11. Valve stem placement rack; 12. Multi-axis manipulator; 2. Detection module; 21. Handling module; 211. Base frame; 212. Mobile frame; 213. Handling Z-axis cylinder; 214. Linear servo motor; 215. Linear guide rail 1; 216. Gripper cylinder; 22. Jumping assembly; 220. Frame 1; 221. Stepper motor 1; 222. Pressure wheel 1; 223. Valve stem clamping seat 1; 224. Stand 1; 225. Cone sensor; 226. Rod sensor; 227. Disk outer circle sensor; 228. Disk end sensor; 229. Disk end cylinder; 2221. Mobile seat 1; 2222. Pressure wheel cylinder 1; 23. Gauge total length module; 230. Frame 2; 231. Support frame; 232. Lift Lifting cylinder; 233, full-length sensor; 234, pressing cylinder; 235, upper limit seat; 236, lower limit seat; 237, pressing bracket; 24, rod diameter assembly; 240, frame three; 241, clamping cylinder; 242, clamping tooling; 243, vertical support frame; 244, linear guide two; 245, servo motor; 246, laser diameter gauge; 247, point support frame; 25, camera assembly; 250, frame four; 251, vertical frame two; 252, valve stem clamping seat two; 253, lower support seat; 254, pressure roller cylinder two; 255, stepper motor two; 256, moving seat two; 257, pressure roller two; 258, camera; 3, unloading module; 31, KK module; 32, slideway; 33, conveyor; 34, proximity switch. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0042] Embodiment 1:

[0043] like Figure 1—9 shows: a novel engine valve-specific detection equipment, comprising a loading module 1, a detection module 2, and a unloading module 3, wherein the loading module 1 is composed of a valve stem placement frame 11 and a multi-axis manipulator 12 arranged above the valve stem placement frame 11, and the detection module 2 comprises a jumping component 22, a gauge total length module 23, a rod diameter component 24, and a camera component 25 which are installed adjacent to each other in sequence, and a transport module 21 is installed on one side of the jumping component 22, the gauge total length module 23, the rod diameter component 24, and the camera component 25, and the electrical mechanism in the loading module 1, the detection module 2, and the unloading module 3 is electrically connected to a PLC module, and the loading module 1, the detection module 2, and the unloading module 3 can realize the automation of valve stem specification detection, effectively improving the accuracy of detection data. In order to improve the accuracy, detection efficiency and save labor costs, the transport module 21 includes a base frame 211, a linear guide rail 215 and a linear servo motor 214 are arranged on the top of the base frame 211, a moving frame 212 is installed on the slide of the linear guide rail 215, the moving frame 212 is connected to the slide of the linear servo motor 214, a transport Z-axis cylinder 213 is installed on the moving frame 212, a gripper cylinder 216 is installed on the piston rod of the transport Z-axis cylinder 213, the gripper cylinder 216 can be translated and lifted in multiple small detection modules, so as to realize the automatic removal of the valve stem, the jumping component 22 includes a frame body 220, a vertical frame 224 and a pressure wheel cylinder 2222 are installed on the frame body 220, the vertical frame 224 and the pressure wheel cylinder 2222 are installed on the vertical frame 224. A valve stem clamping seat 223 is installed on the stand 224, and a disk outer circle sensor 227, a rod sensor 226 and a cone sensor 225 are installed on the stand 224 from top to bottom. The piston rod of the pressure wheel cylinder 2222 is connected to the moving seat 2221, and a linear guide mechanism is arranged between the moving seat 2221 and the frame 220. A stepper motor 221 and a disk end cylinder 229 are installed on the moving seat 2221. The stepper motor 221 is connected to the pressure wheel 222 in a transmission manner. The pressure wheel 222 is rotatably installed on the moving seat 2221, and a disk end sensor 228 is installed on the piston rod of the disk end cylinder 229. After the valve stem rotates under the drive of the pressure wheel 222, multiple displacement sensors are used to detect whether the valve stem is moving or not. The runout at the same position is automatically detected. Two bearings are installed on the valve stem clamping seat 223 for adjacent rotation. After the valve stem is placed between the two bearings, the pressure wheel 222 can stably drive the valve stem to rotate. The gauge total length module 23 includes a frame 230. A downward pressure cylinder 234 and a support frame 231 are installed on the frame 230. An upper limit seat 235 and a lifting cylinder 232 are installed on the support frame 231. A lower limit seat 236 is installed on the piston rod of the lifting cylinder 232. A through hole suitable for inserting the valve stem is opened on the upper limit seat 235. The piston rod of the downward pressure cylinder 234 is connected to the downward pressure bracket 237. A linear guide mechanism is provided between the downward pressure bracket 237 and the frame 230.The downward pressing bracket 237 is provided with a full-length sensor 233 on one side facing the supporting frame 231. The valve stem moves upward under the drive of the lifting cylinder 232 and contacts the full-length sensor 233, thereby automatically detecting the length of the valve stem in a straight line. The rod diameter assembly 24 includes a frame body 3 240, on which a clamping cylinder 241 and a vertical supporting frame 243 are installed. A linear guide rail 244 is installed on the vertical supporting frame 243. The linear guide rail 244 is connected to a servo motor 245 for transmission. A laser diameter gauge 246 is installed on the slide seat of the linear guide rail 244. A clamping fixture 242 is installed on the piston rod. After the valve stem is clamped by the clamping fixture 242, a laser diameter gauge 246 on one side moves vertically to detect the diameter of the valve stem. A point support frame 247 is installed on the frame body 3 240. The point support frame 247 is a bearing rotatably installed on the bracket. The point support frame 247 is located vertically below the clamping fixture 242. The point support frame 247 plays the role of point supporting the bottom end of the valve stem, which can ensure that the laser diameter gauge 246 can effectively measure the diameter of the bottom end of the valve stem. The camera assembly 25 includes a frame body 4 250, on which a laser diameter gauge 246 is installed. A pressure wheel cylinder 254 and a stand 251 are installed, and a valve stem clamping seat 252 and a lower support seat 253 are installed on the stand 251. The valve stem clamping seat 252 has the same structure as the valve stem clamping seat 1 223. A moving seat 256 is installed on the piston rod of the pressure wheel cylinder 254. A linear guide mechanism is provided between the moving seat 256 and the frame 4 250. A stepper motor 255 is installed on the moving seat 256. The stepper motor 255 is connected to the pressure wheel 257. The pressure wheel 257 is rotatably installed on the moving seat 256. A camera 258 is installed on one side of the second seat 252. When the valve stem rotates driven by the second pressure wheel 257, the camera 258 completely captures the surface image data of the valve stem. The unloading module 3 includes a slide 32, which is installed on the KK module 31. A conveyor 33 is arranged behind the slide 32. The conveyor 33 is composed of a plurality of belt conveyors arranged adjacent to each other on the left and right to form a slide mechanism. A proximity switch 34 is installed on one end of the conveyor 33 toward the slide 32. The KK module 31 drives the slide 32 to translate, and the valve stems with different detection results are sent to different slides on the conveyor 33.

[0044] The working principle of this technical solution is as follows: in this device, the cone sensor 225, the rod sensor 226, the disk outer circle sensor 227, the disk end surface sensor 228, and the full-length sensor 233 are all displacement sensors; the multi-axis manipulator 12 sends the workpiece placed on the valve stem placement rack 11 to the loading position of the detection module 2, and then the detection module 2 performs detection. The detection module 2 is divided into 4 small modules, and the movement of the valve stem between different modules is carried out by the transport module 21. The linear servo motor 214 telescopes to drive the mobile rack 212 to translate under the support of the linear guide rail 215, and the transport Z-axis cylinder 213 telescopes to control the gripper cylinder 216 to move up and down, thereby picking up and placing the four small modules. The first module is a beating assembly 22 for detecting the beating. The valve stem is placed above the conical sensor 225, on one side of the valve stem clamping seat 223. Then the pressure wheel cylinder 2222 extends to drive the moving seat 2221 to move, so that the pressure wheel 222 is pressed against the other side of the valve stem. The piston rod of the disk end cylinder 229 extends to drive the disk end sensor 228 to move to one side of the valve stem disk end. The stepper motor 221 then runs to drive the pressure wheel 222 to rotate through the belt transmission mechanism, thereby rotating the valve stem. At this time, the conical sensor 225, the rod sensor 226, the disk outer circle sensor 227, and the disk end sensor 228 detect the beating degree of the valve stem. After the detection is completed, The gauge total length module 23 detects the length of the valve stem; the valve stem is placed in the upper limit seat 235 and supported by the lower limit seat 236, and then the downward pressure cylinder 234 extends to drive the downward pressure bracket 237 to move horizontally, so that the full-length sensor 233 moves to the top of the valve stem, and then the lifting cylinder 232 extends to drive the valve stem to move upward, and the full-length sensor 233 contacts the top of the valve stem to detect the length of the valve stem; then, the rod diameter assembly 24 detects the rod diameter of the valve stem, and the valve stem is placed on the point support frame 247, and the clamping cylinder 241 is extended and retracted to drive the clamping tooling 242 to move and clamp the valve stem, and then the servo motor 245 runs to drive the laser diameter gauge 246 to move on the linear guide rail 244 The valve stem is placed on the upper side of the lower support seat 253 and on one side of the valve stem clamping seat 252. Then the pressure wheel cylinder 254 is extended to drive the movable seat 256 to translate, thereby pressing the pressure wheel 257 against one side of the valve stem. Then the stepper motor 255 is operated to drive the pressure wheel 257 to rotate, so that the camera 258 can obtain complete appearance image information of the valve stem when it rotates. After the inspection, the valve stem is placed in the slide 32, and the KK module 31 is operated to control the translation of the slide 32. According to the results of the inspection data, the valve stem is placed in the corresponding conveyor 33 for material sorting and unloading.

[0045] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0046] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A new type of engine valve special detection equipment, characterized by: The invention comprises a loading module (1), a detection module (2) and a unloading module (3); the loading module (1) comprises a valve stem placement frame (11) and a multi-axis manipulator (12) arranged above the valve stem placement frame (11); the detection module (2) comprises a jumping assembly (22), a gauge total length module (23), a rod diameter assembly (24) and a camera assembly (25) which are installed adjacent to each other in sequence; a transport module (21) is installed on one side of the jumping assembly (22), the gauge total length module (23), the rod diameter assembly (24) and the camera assembly (25); and the electrical mechanisms in the loading module (1), the detection module (2) and the unloading module (3) are electrically connected to a PLC module.

2. A novel engine valve special detection device according to claim 1, characterized in that: The transport module (21) comprises a base frame (211), a linear guide rail (215) and a linear servo motor (214) are arranged above the base frame (211), a moving frame (212) is installed on the slide seat of the linear guide rail (215), the moving frame (212) is connected to the slide seat of the linear servo motor (214), a transport Z-axis cylinder (213) is installed on the moving frame (212), and a gripper cylinder (216) is installed on the piston rod of the transport Z-axis cylinder (213).

3. A novel engine valve special detection device according to claim 1, characterized in that: The jumping assembly (22) comprises a frame body (220), on which a vertical frame (224) and a pressure wheel cylinder (2222) are mounted, on which a valve stem clamping seat (223) is mounted, on which a disk outer circle sensor (227), a rod sensor (226) and a cone sensor (225) are mounted from top to bottom, and a piston rod of the pressure wheel cylinder (2222) is connected to a movable seat (223). 2221), a linear guide mechanism is arranged between the moving seat 1 (2221) and the frame 1 (220), a stepper motor 1 (221) and a disk end cylinder (229) are installed on the moving seat 1 (2221), the stepper motor 1 (221) is transmission-connected to a pressure wheel 1 (222), the pressure wheel 1 (222) is rotatably mounted on the moving seat 1 (2221), and a disk end surface sensor (228) is installed on the piston rod of the disk end cylinder (229).

4. A novel engine valve special detection device according to claim 3, characterized in that: Two bearings are mounted on the valve stem clamping seat (223) for left and right adjacent rotation.

5. The new engine valve dedicated detection equipment according to claim 1 is characterized by: The gauge overall length module (23) includes a frame body 2 (230), on which a downward pressure cylinder (234) and a support frame (231) are installed, on which an upper limit seat (235) and a lifting cylinder (232) are installed, on which the piston rod of the lifting cylinder (232) is installed a downward limit seat (236), on which the upper limit seat (235) is provided a through hole adapted to insert a valve stem, the piston rod of the downward pressure cylinder (234) is connected to a downward pressure bracket (237), a linear guide mechanism is provided between the downward pressure bracket (237) and the frame body 2 (230), and a full-length sensor (233) is installed on the side of the downward pressure bracket (237) facing the support frame (231).

6. A novel engine valve special detection device according to claim 1, characterized in that: The rod diameter assembly (24) comprises a frame body three (240), on which a clamping cylinder (241) and a vertical support frame (243) are installed, on which a linear guide rail two (244) is installed, the linear guide rail two (244) is transmission-connected to a servo motor (245), on the slide seat of the linear guide rail two (244) is installed a laser diameter gauge (246), and on the piston rod of the clamping cylinder (241) is installed a clamping tool (242).

7. A novel engine valve special detection device according to claim 6, characterized in that: A point support frame (247) is installed on the frame body three (240), and the point support frame (247) is a bearing rotatably installed on the bracket. The point support frame (247) is located vertically below the clamping tooling (242).

8. The new engine valve dedicated detection equipment according to claim 1 is characterized by: The camera assembly (25) comprises a frame body 4 (250), on which a pressure wheel cylinder 2 (254) and a stand 2 (251) are mounted, on which a valve stem clamp seat 2 (252) and a lower support seat (253) are mounted, the valve stem clamp seat 2 (252) having the same structure as the valve stem clamp seat 1 (223), and a displacement seat 2 (254) is mounted on the piston rod of the pressure wheel cylinder 2 (254). A movable seat 2 (256), a linear guide mechanism is arranged between the movable seat 2 (256) and the frame 4 (250), a stepper motor 2 (255) is installed on the movable seat 2 (256), the stepper motor 2 (255) is transmission-connected to a pressure wheel 2 (257), the pressure wheel 2 (257) is rotatably installed on the movable seat 2 (256), and a camera (258) is installed on one side of the valve stem clamping seat 2 (252).

9. A novel engine valve special detection device according to claim 1, characterized in that: The unloading module (3) comprises a slideway (32), wherein the slideway (32) is mounted on the KK module (31), and a conveyor (33) is arranged behind the slideway (32), wherein the conveyor (33) is composed of a plurality of belt conveyors arranged adjacent to each other on the left and right and forming a slideway mechanism, and a proximity switch (34) is installed at one end of the conveyor (33) facing the slideway (32).

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