Automobile piston size detection device

Abstract

The utility model provides an automobile piston dimension detection device, relates to the technical field of dimension detection, and aims to solve the technical problem that in the prior art, each dimension parameter of an automobile piston needs to be manually measured by a worker, and the detection efficiency is low. According to the automobile piston size detection device, a first vertical displacement assembly drives a first detection assembly to move downwards so as to measure the inner diameter of a round hole in the upper end of a product and the outer diameter of an upper boss, and a second vertical displacement assembly drives a second detection assembly to move downwards so as to measure the size of the product. A first vertical displacement assembly drives a first detection assembly to move downwards so as to measure the distance between the bottom end of an upper end round hole of a product on a first placing seat and the bottom end of a lower boss, a third vertical displacement assembly drives a third detection assembly to move downwards so as to measure the distance between an inclined plane of a product on a second placing seat and the bottom end of the lower boss, and a fourth detection assembly detects the outer diameter of the product. Therefore, the automatic detection of each size of the automobile piston product is realized, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of dimensional detection technology, specifically to a device for detecting the dimensions of automotive pistons. Background Technology

[0002] The automotive piston is a product with an integral cylindrical structure. The upper end face of the automotive piston has a circular hole, and the bottom end of the circular hole has an upper boss. The lower half of the outer wall of the automotive piston has an annular protrusion with a sloping upper end face. The bottom end of the automotive piston has another circular hole, and the upper end face of the circular hole has a lower boss.

[0003] For each automotive piston, the following dimensional parameters must be inspected: the piston's outer diameter, the inner diameter of the upper bore, the outer diameter of the upper boss, the distance from the bottom of the upper bore to the bottom of the lower boss, and the distance from the inclined surface of the piston protrusion to the bottom of the lower boss. Only automotive pistons whose dimensions all conform to the standards are considered qualified products. Currently, these dimensional parameters are measured manually by workers, resulting in low inspection efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automotive piston size detection device to solve the technical problem that the various dimensional parameters of automotive pistons need to be manually measured by workers, resulting in low detection efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides an automotive piston size detection device, comprising:

[0006] support;

[0007] The first testing mechanism includes a first testing component for testing the inner diameter of the upper circular hole and the outer diameter of the upper boss of the product, and a first vertical displacement component for driving the first testing component to move vertically.

[0008] The second detection mechanism includes a first placement seat for placing the product, a second detection component for detecting the distance between the bottom end of the upper circular hole of the product and the bottom end of the lower boss, and a second vertical displacement component for driving the second detection component to move vertically.

[0009] The third inspection mechanism includes a second placement seat for placing the product, a third inspection component for inspecting the distance between the inclined surface of the product and the bottom end of the lower boss, and a third vertical displacement component for driving the third inspection component to move vertically.

[0010] The fourth testing facility includes a fourth testing component for testing the outer diameter of the product;

[0011] The feeding mechanism is used to deliver products to the first, second, third, and fourth testing institutions.

[0012] The first, second, third, and fourth testing units and the feeding mechanism are all mounted on the support frame.

[0013] With the above structure, the automotive piston size detection device of this utility model has the following advantages: the first vertical displacement component drives the first detection component to move downward, thereby measuring the inner diameter of the upper circular hole and the outer diameter of the upper boss of the product; the second vertical displacement component drives the second detection component to move downward, thereby measuring the distance between the bottom end of the upper circular hole and the bottom end of the lower boss of the product on the first placement seat; the third vertical displacement component drives the third detection component to move downward, thereby measuring the distance between the inclined surface of the product on the second placement seat and the bottom end of the lower boss; and the fourth detection component detects the outer diameter of the product; thus realizing automatic detection of various dimensions of automotive piston products and improving detection efficiency.

[0014] As an improvement, the feeding mechanism includes a turntable, with several third placement seats evenly spaced along the circumference of the upper surface of the turntable. Each third placement seat has a placement hole at its top for placing products. The first, second, third, and fourth detection mechanisms are arranged sequentially along the circumference of the turntable and each corresponds to a third placement seat. With this structure, each time the turntable rotates, the product on the third placement seat moves with the third placement seat to the next detection station. Each time the turntable rotates, each detection station has a third placement seat and a product to be detected, further improving detection efficiency.

[0015] As an improvement, the feeding mechanism includes two moving components, which are used to place the product on the first placement seat and the second placement seat respectively. The moving components include a vertical drive, a horizontal drive and a gripper. The vertical drive drives the horizontal drive to move vertically, and the horizontal drive drives the gripper to move towards or away from the first placement seat / second placement seat. The gripper is used to grip the product.

[0016] As an improvement, the first detection component includes a gas detection head.

[0017] As an improvement, the second detection component includes a first detection head, a first contact digital sensor, and a first mounting bracket. The first detection head has a first countersunk hole at its bottom end. The first contact digital sensor is connected to the first mounting bracket. The first detection head is vertically slidably connected to the first mounting bracket, with its bottom end exposed below the first mounting bracket. The detection end of the first contact digital sensor is connected to the first detection head. The second vertical displacement component is used to drive the first mounting bracket to move vertically, causing the first detection head to enter the upper circular hole of the product and come into contact with the bottom end of the upper circular hole. With this structure, when the first detection head enters the upper circular hole of the product and comes into contact with the bottom end of the upper circular hole, the first detection head will slide upward on the first mounting bracket, causing the detection end of the first contact digital sensor to move. The displacement sensor built into the first contact digital sensor detects the change in the detection end, thereby detecting the distance between the bottom end of the upper circular hole of the product and the bottom end of the lower boss.

[0018] As an improvement, the third detection component includes a second detection head, a second contact digital sensor, and a second mounting bracket. The second detection head has a second countersunk hole at its bottom end and a mating surface that matches the inclined surface of the product. The second contact digital sensor is connected to the second mounting bracket. The second detection head is vertically slidably connected to the second mounting bracket, with its bottom end protruding below the second mounting bracket. The detection end of the second contact digital sensor is connected to the second detection head. The third vertical displacement component is used to drive the second mounting bracket to move vertically, so that the second detection head is fitted onto the product and the mating surface is in contact with the inclined surface of the product. With this structure, when the second detection head is fitted onto the product and the mating surface is in contact with the inclined surface of the product, the second detection head will slide upward on the second mounting bracket, causing the detection end of the second contact digital sensor to move. The displacement sensor built into the second contact digital sensor detects the change in the detection end, thereby detecting the distance between the inclined surface of the product and the bottom end of the lower boss.

[0019] As an improvement, the fourth detection component includes a laser length measuring instrument.

[0020] As an improvement, the support is equipped with a feeding mechanism, which includes a conveyor belt assembly and a clamping assembly. The conveyor belt assembly is connected to a tray for placing products, and the clamping assembly is used to transport the products on the tray to the feeding mechanism.

[0021] As an improvement, the first, second, third, and fourth testing units all include a positioning detection component for detecting whether the product is in place; with this structure, it is ensured that the product is in place before each test. Attached Figure Description

[0022] Figure 1 This is a top view of the present invention.

[0023] Figure 2This is a three-dimensional structural diagram of the present invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the first detection mechanism in this utility model.

[0025] Figure 4 This is a three-dimensional structural diagram of the second detection mechanism in this utility model.

[0026] Figure 5 This is a cross-sectional view of the first placement seat in this utility model.

[0027] Figure 6 This is a three-dimensional structural diagram of the third detection mechanism in this utility model.

[0028] Figure 7 This is a cross-sectional view of the second placement seat in this utility model.

[0029] Figure 8 This is a three-dimensional structural diagram of the third detection component in this utility model.

[0030] Figure 9 This is a three-dimensional structural diagram of the third placement seat in this utility model.

[0031] Figure 10 This is a cross-sectional view of a car piston.

[0032] Reference numerals: 100, First detection mechanism; 200, Second detection mechanism; 300, Third detection mechanism; 400, Fourth detection mechanism; 500, Feeding mechanism; 1, Support; 2, First detection component; 3, First vertical displacement component; 4, First placement seat; 5, Second detection component; 51, First detection head; 52, First contact digital sensor; 53, First mounting bracket; 6, Limiting groove; 7, Second placement seat; 8, Third detection component; 81. 82. Second detection head; 83. Second contact digital sensor; 9. Second mounting bracket; 10. Limiting rod; 11. Fourth detection component; 12. Turntable; 13. Third placement seat; 14. Placement hole; 15. Moving component; 16. Vertical drive component; 17. Horizontal drive component; 18. Gripper; 19. First countersunk hole; 10. Second countersunk hole; 10. Fitting surface; 11. Feeding mechanism; 12. Conveyor belt assembly; 13. Clamping assembly; 14. Material tray. Detailed Implementation

[0033] The present invention provides a detailed description of an automotive piston size detection device in conjunction with the accompanying drawings.

[0034] like Figures 1 to 9 As shown, an automotive piston size detection device is used to detect, for example,... Figure 10The various dimensional parameters of the automobile piston shown include bracket 1, first detection mechanism 100, second detection mechanism 200, third detection mechanism 300, fourth detection mechanism 400 and feeding mechanism 500. The first detection mechanism 100, second detection mechanism 200, third detection mechanism 300, fourth detection mechanism 400 and feeding mechanism 500 are all mounted on bracket 1.

[0035] like Figure 1 As shown, the feeding mechanism 500 is used to deliver products to the first inspection mechanism 100, the second inspection mechanism 200, the third inspection mechanism 300, and the fourth inspection mechanism 400. The feeding mechanism 500 includes a turntable 11, which is rotatably connected to the support 1 and driven by a motor. A plurality of third placement seats 12 are equidistantly arranged along the circumferential direction on the upper surface of the turntable 11, such as... Figure 9 As shown, each third placement seat 12 has a placement hole 13 at its top for placing the product. The placement hole 13 is a central hole and an annular hole coaxial with the central hole. The upper end face of the lower end of the product's circular hole is in contact with the annular part between the central hole and the annular hole in the placement hole 13. The lower boss of the product is located in the central hole, and the bottom end of the product is located in the annular hole.

[0036] like Figure 1 As shown, the first testing mechanism 100, the second testing mechanism 200, the third testing mechanism 300, and the fourth testing mechanism 400 are arranged sequentially along the circumference of the turntable 11 and each corresponds to a third placement seat 12. That is, the first testing mechanism 100, the second testing mechanism 200, the third testing mechanism 300, and the fourth testing mechanism 400 are located on the extension line of the line connecting the center of the turntable 11 to one of the third placement seats 12. Each time the turntable 11 rotates, the product on the third placement seat 12 moves with the third placement seat 12 to the next testing station. With each rotation of the turntable 11, each testing station has a third placement seat 12 and a product to be tested, further improving testing efficiency.

[0037] In addition, such as Figure 1 and Figure 2As shown, the support 1 is equipped with a feeding mechanism 18, which includes a conveyor belt assembly 181 and a gripping assembly 182. The conveyor belt assembly 181 is located adjacent to the turntable 11, and its specific structure is existing technology and will not be described in detail here. Several trays 19 for placing products are connected to the conveyor belt assembly 181, distributed along the length of the conveyor belt assembly 181. Each tray 19 holds several products to be inspected. The gripping assembly 182 is used to transport the products on the trays 19 to the feeding mechanism 500. The gripping assembly 182 is preferably a robotic arm. The robotic arm grips the products to be inspected from the trays 19 and places them on the third placement seat 12 of the turntable 11. After the product inspection is completed, the robotic arm grips the inspected products again and places them on another tray 19 of the support 1. In other words, the trays 19 on the conveyor belt assembly 181 are used to place products to be inspected, while the trays 19 directly mounted on the support 1 are used to place inspected products. The specific structure of the robotic arm is also existing technology and will not be described in detail here.

[0038] like Figure 3 As shown, the first detection mechanism 100 includes a first detection component 2 for detecting the inner diameter of the upper circular hole and the outer diameter of the upper boss of the product, and a first vertical displacement component 3 for driving the first detection component 2 to move vertically. The first detection component 2 includes a gas detection head and a gas detection station. The gas detection head is customized according to the inner diameter of the upper circular hole and the outer diameter of the upper boss of the product. During detection, the first vertical displacement component 3 drives the gas detection head to descend and enter the upper circular hole of the product. The gas detection head emits gas, and the gas detection station detects the inner diameter of the upper circular hole and the outer diameter of the upper boss of the product based on the amount of gas. The specific structure and working principle of the first detection component 2 are existing technologies and will not be described in detail here.

[0039] The first vertical displacement component 3 includes a connecting frame, a lifting cylinder, and a guide rail assembly connected to the bracket 1. The guide rail assembly and the lifting cylinder are both connected to the connecting frame. The air detection head in the first detection component 2 is connected to the guide rail assembly. The lifting cylinder drives the air detection head to move up and down. Of course, in some other embodiments, the lifting cylinder can also be replaced by a motor and a ball screw.

[0040] In addition, such as Figure 3 As shown, when testing the inner diameter of the upper circular hole and the outer diameter of the upper boss of the product, the product is placed on the third placement seat 12 for testing. A lifting cylinder (not shown in the figure) is connected to the turntable 11. The lifting cylinder is connected to a pneumatic finger. After the test is completed, the pneumatic finger first clamps the product. After the air detection head leaves the product, the pneumatic finger releases the product. The lifting cylinder drives the pneumatic finger to rise, and then the turntable 11 rotates.

[0041] like Figure 4As shown, the second detection mechanism 200 includes a first placement seat 4 for placing the product, a second detection component 5 for detecting the distance between the bottom end of the upper circular hole and the bottom end of the lower boss of the product, and a second vertical displacement component for driving the second detection component 5 to move vertically; the second detection component 5 includes a first detection head 51, a first contact digital sensor 52, and a first mounting bracket 53, as shown. Figure 5 As shown, the first detection head 51 has a first countersunk hole 15 at its bottom end. The first contact digital sensor 52 is connected to the first mounting bracket 53. The first detection head 51 is slidably connected to the first mounting bracket 53 vertically, with its bottom end exposed below the first mounting bracket 53. The detection end of the first contact digital sensor 52 is connected to the first detection head 51. The second vertical displacement component is used to drive the first mounting bracket 53 to move vertically, causing the first detection head 51 to enter the upper circular hole of the product and be in contact with the bottom end of the upper circular hole of the product. Specifically, a connecting bracket is fixedly connected to the bracket 1. The first mounting bracket 53 is slidably connected to the connecting bracket through a guide rail assembly. The second vertical displacement component is a drive cylinder or motor and a ball screw. The first detection head 51 is slidably connected to the bottom end of the first mounting bracket 53. The first contact digital sensor 52 is set vertically, and its bottom end is the detection end.

[0042] A limiting rod 9 is connected to the first detection head 51. A vertical limiting groove 6 is provided on the side wall of the first mounting bracket 53. The limiting rod 9 is located in the limiting groove 6. In the initial state, the limiting rod 9 is located at the bottom end of the limiting groove 6. When the first detection head 51 enters the upper circular hole of the product and is in contact with the bottom end of the upper circular hole of the product, the first detection head 51 will slide upward on the first mounting bracket 53, driving the detection end of the first contact digital sensor 52 to move. The displacement sensor built into the first contact digital sensor 52 detects the change in the detection end, thereby detecting the distance between the bottom end of the upper circular hole of the product and the bottom end of the lower boss. The specific structure and working principle of the first contact digital sensor 52 are existing technologies and will not be described in detail here.

[0043] like Figure 6 As shown, the third detection mechanism 300 includes a second placement seat 7 for placing the product, a third detection component 8 for detecting the distance between the inclined surface of the product and the bottom end of the lower boss, and a third vertical displacement component for driving the third detection component 8 to move vertically; the third detection component 8 includes a second detection head 81, a second contact digital sensor 82, and a second mounting bracket 83, as shown. Figure 7As shown, the second detection head 81 has a second countersunk hole 16 at its bottom end and a mating surface 17 at its bottom end that matches the inclined surface of the product. The second contact digital sensor 82 is connected to the second mounting bracket 83. The second detection head 81 is slidably connected to the second mounting bracket 83 vertically, with its bottom end exposed below the second mounting bracket 83. The detection end of the second contact digital sensor 82 is connected to the second detection head 81. The third vertical displacement component is used to drive the second mounting bracket 83 to move vertically, so that the second detection head 81 is fitted onto the product and the mating surface 17 is in contact with the inclined surface of the product. Specifically, a connecting bracket is fixedly connected to the bracket 1. The second mounting bracket 83 is slidably connected to the connecting bracket through a guide rail assembly. The second vertical displacement component is also a drive cylinder or motor and a ball screw. The second detection head 81 is slidably connected to the bottom end of the second mounting bracket 83. The second contact digital sensor 82 is set vertically, and its bottom end is the detection end.

[0044] like Figure 8 As shown, a limiting rod 9 is connected to the second detection head 81, and a vertical limiting groove 6 is provided on the side wall of the second mounting bracket 83. The limiting rod 9 is located in the limiting groove 6. In the initial state, the limiting rod 9 is located at the bottom end of the limiting groove 6. When the second detection head 81 is sleeved on the product and the contact surface 17 is in contact with the inclined surface of the product, the second detection head 81 will slide upward on the second mounting bracket 83, driving the detection end of the second contact digital sensor 82 to move. The displacement sensor built into the second contact digital sensor 82 detects the change in the detection end, thereby detecting the distance between the inclined surface of the product and the bottom end of the lower boss.

[0045] The fourth inspection unit 400 includes a fourth inspection component 10 for inspecting the outer diameter of the product. The fourth inspection component 10 includes a laser length measuring instrument, which can directly measure the outer diameter of the product. Its specific structure and working principle are existing technologies and will not be described in detail here. The robot in the feeding mechanism 500 places the product on the third placement seat 12 onto the laser length measuring instrument.

[0046] Since the relevant dimensional inspections of the second inspection mechanism 200 and the third inspection mechanism 300 are all performed on their respective first placement seats 4 and second placement seats 7, the feeding mechanism 500 also includes two moving components 14. The two moving components 14 are used to place the product on the first placement seat 4 and the second placement seat 7, respectively. Both moving components 14 are connected to the turntable 11 and correspond to the third placement seat 12 in front of the second inspection mechanism 200 and the third inspection mechanism 300, respectively. The moving component 14 includes a vertical drive member 141, a horizontal drive member 142 and a gripper 143. The vertical drive member 141 drives the horizontal drive member 142 to move vertically, and the horizontal drive member 142 drives the gripper 143 to move closer to or away from the first placement seat 4 / second placement seat 7. The gripper 143 is used to grip the product. The vertical drive member 141 and the horizontal drive member 142 are both cylinders, and the gripper 143 is a pneumatic finger.

[0047] It should be noted that before conducting the actual inspection, a standard product is first inspected. Each contact digital sensor records the distance the inspection end moves when each dimension of the product is at the standard value. During the actual product inspection, the product's dimensional compliance can be determined directly based on the distance the inspection end moves as monitored by the contact digital sensors.

[0048] In addition, the first detection mechanism 100, the second detection mechanism 200, the third detection mechanism 300 and the fourth detection mechanism 400 all include a positioning detection component for detecting whether the product is in place, which is a photoelectric sensor in this embodiment.

[0049] The first vertical displacement component 3 drives the first detection component 2 to move downward, thereby measuring the inner diameter of the upper circular hole and the outer diameter of the upper boss of the product. The second vertical displacement component drives the second detection component 5 to move downward, thereby measuring the distance between the bottom end of the upper circular hole and the bottom end of the lower boss of the product on the first placement seat 4. The third vertical displacement component drives the third detection component 8 to move downward, thereby measuring the distance between the inclined surface of the product on the second placement seat 7 and the bottom end of the lower boss. The fourth detection component 10 detects the outer diameter of the product. This achieves automatic detection of various dimensions of automotive piston products and improves detection efficiency.

[0050] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiment. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. A device for detecting the size of automotive pistons, characterized in that, include: Support (1); The first detection mechanism (100) includes a first detection component (2) for detecting the inner diameter of the upper circular hole and the outer diameter of the upper boss of the product and a first vertical displacement component (3) for driving the first detection component (2) to move vertically. The second detection mechanism (200) includes a first placement seat (4) for placing the product, a second detection component (5) for detecting the distance between the bottom end of the upper circular hole of the product and the bottom end of the lower boss, and a second vertical displacement component for driving the second detection component (5) to move vertically. The third detection mechanism (300) includes a second placement seat (7) for placing the product, a third detection component (8) for detecting the distance between the inclined surface of the product and the bottom end of the lower boss, and a third vertical displacement component for driving the third detection component (8) to move vertically. The fourth testing unit (400) includes a fourth testing component (10) for testing the outer diameter of the product. A feeding mechanism (500) is used to deliver products to the first testing institution (100), the second testing institution (200), the third testing institution (300), and the fourth testing institution (400); The first testing mechanism (100), the second testing mechanism (200), the third testing mechanism (300), the fourth testing mechanism (400) and the feeding mechanism (500) are all mounted on the support (1).

2. The automotive piston size detection device according to claim 1, characterized in that, The feeding mechanism (500) includes a turntable (11). The upper surface of the turntable (11) is provided with a plurality of third placement seats (12) at equal intervals along the circumference. Each third placement seat (12) has a placement hole (13) for placing products at its top. The first detection mechanism (100), the second detection mechanism (200), the third detection mechanism (300) and the fourth detection mechanism (400) are arranged sequentially along the circumference of the turntable (11) and each corresponds to one of the third placement seats (12).

3. The automotive piston size detection device according to claim 1 or 2, characterized in that, The feeding mechanism (500) includes two moving components (14), which are used to place products on the first placement seat (4) and the second placement seat (7), respectively. The moving components (14) include a vertical drive (141), a horizontal drive (142) and a gripper (143). The vertical drive (141) drives the horizontal drive (142) to move vertically, and the horizontal drive (142) drives the gripper (143) to move closer to or further away from the first placement seat (4) / second placement seat (7). The gripper (143) is used to grip the product.

4. The automotive piston size detection device according to claim 1, characterized in that, The first detection component (2) includes a gas detection head.

5. The automotive piston size detection device according to claim 1, characterized in that, The second detection component (5) includes a first detection head (51), a first contact digital sensor (52), and a first mounting bracket (53). The first detection head (51) has a first countersunk hole (15) at its bottom end. The first contact digital sensor (52) is connected to the first mounting bracket (53). The first detection head (51) is vertically slidably connected to the first mounting bracket (53), and the bottom end of the first detection head (51) is exposed below the first mounting bracket (53). The detection end of the first contact digital sensor (52) is connected to the first detection head (51). The second vertical displacement component is used to drive the first mounting bracket (53) to move vertically and make the first detection head (51) enter the upper circular hole of the product and be in contact with the bottom end of the upper circular hole of the product.

6. The automotive piston size detection device according to claim 1, characterized in that, The third detection component (8) includes a second detection head (81), a second contact digital sensor (82), and a second mounting bracket (83). The second detection head (81) has a second countersunk hole (16) at its bottom end and a mating surface (17) that matches the inclined surface of the product at its bottom end. The second contact digital sensor (82) is connected to the second mounting bracket (83). The second detection head (81) is vertically slidably connected to the second mounting bracket (83), and the bottom end of the second detection head (81) is exposed below the second mounting bracket (83). The detection end of the second contact digital sensor (82) is connected to the second detection head (81). The third vertical displacement component is used to drive the second mounting bracket (83) to move vertically and make the second detection head (81) fit on the product and the mating surface (17) is in contact with the inclined surface of the product.

7. The automotive piston size detection device according to claim 1, characterized in that, The fourth detection component (10) includes a laser length measuring instrument.

8. The automotive piston size detection device according to claim 1, characterized in that, The support (1) is provided with a feeding mechanism (18), which includes a conveyor belt assembly (181) and a clamping assembly (182). The conveyor belt assembly (181) is connected to a tray (19) for placing products, and the clamping assembly (182) is used to transport the products on the tray (19) to the feeding mechanism (500).

9. The automotive piston size detection device according to claim 1, characterized in that, The first testing unit (100), the second testing unit (200), the third testing unit (300) and the fourth testing unit (400) all include a positioning testing component for detecting whether the product is in place.

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