Detection device for diesel engine piston

Abstract

The utility model belongs to detection device technical field, concretely relates to a diesel engine piston detection device, the new type includes: rotating mechanism, it includes: carousel, wherein the carousel is provided with a plurality of piston placing parts in round array on, and be equipped with first avoiding portion in each piston placing part, weighing mechanism, it includes: the first cylinder of setting below carousel and the weighing sensor of telescopic end connection with first cylinder, marking mechanism, it includes: the second cylinder of setting in carousel one side and the marker pen of telescopic end connection with second cylinder, main control module, with rotating mechanism, first cylinder and second cylinder electric connection, this diesel engine piston detection device passes through the automatic control of main control module, makes rotating mechanism, weighing mechanism and marking mechanism mutually cooperate, makes the detection process of piston fast, efficient, guarantees the accuracy of piston detection simultaneously, improves product quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of testing devices, specifically relating to a testing device for diesel engine pistons. Background Technology

[0002] The piston is the heart of a diesel engine, reciprocating at high speed within the cylinder. For multi-cylinder diesel engines, ensuring the weight consistency of pistons across all cylinders is crucial; the weight difference typically needs to be controlled within a very small range of ±2 to ±5 grams. Excessive weight variation will cause severe engine vibration and noise, seriously affecting its operational smoothness and reliability. Therefore, 100% weight inspection of pistons is required on the engine assembly line.

[0003] Currently, production lines primarily rely on operators manually inspecting pistons using ordinary electronic balances. Workers must place each piston individually on the balance, wait for the reading to stabilize, record the weight, and then remove the piston. This process is repeated cyclically, consuming a significant amount of time on each piston. In mass production, this inefficient inspection method has become a bottleneck restricting production speed and cannot meet the demands of high-efficiency assembly lines. Furthermore, prolonged repetitive manual labor easily leads to visual fatigue and decreased concentration among operators, resulting in human errors such as misreading numbers, misremembering standards, or misclassifying groups. Such human misjudgments directly cause pistons to be misassembled, assembling substandard pistons into engines, leading to serious quality risks.

[0004] Therefore, in order to solve the above problems, it is necessary to design a detection device for diesel engine pistons. Utility Model Content

[0005] The purpose of this invention is to provide a detection device for diesel engine pistons to solve the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a detection device for diesel engine pistons, comprising: A rotating mechanism, comprising: a turntable; wherein The turntable is provided with a circular array of piston placement sections; and Each of the piston placement portions is provided with a first clearance portion; The weighing mechanism includes: a first cylinder disposed below the turntable and a load cell connected to the telescopic end of the first cylinder; wherein The first cylinder and the weighing sensor are located below the rotation path of the piston placement part; The marking mechanism includes: a second cylinder disposed on one side of the turntable and a marker pen connected to the telescopic end of the second cylinder; The main control module is electrically connected to the rotating mechanism, the first cylinder, and the second cylinder; among which... The main control module is adapted to control the intermittent movement of the rotating mechanism so that any piston placement part is located above the weighing sensor; The main control module is adapted to control the first cylinder to extend so that the weighing sensor passes through the first clearance part and pushes up the piston in the piston placement part to weigh the piston. The main control module is adapted to make a judgment based on the weight data uploaded by the weighing sensor. If the piston weight is unqualified, it controls the second cylinder to extend so that the marker pen contacts the piston to mark the defect.

[0007] Furthermore, the rotating mechanism also includes: a speed reducer and a motor connected to the speed reducer; wherein The output shaft of the reducer is connected to the bottom of the turntable; The motor is suitable for driving the turntable to rotate via a speed reducer; The main control module is electrically connected to the motor.

[0008] Furthermore, a worktable is provided below the turntable; The workbench is provided with a second clearance section and a third clearance section; The reducer, motor, and first cylinder are all located below the worktable; The output shaft of the reducer passes through the second clearance section and then connects to the turntable; The telescopic end of the first cylinder is located inside the third clearance section.

[0009] Furthermore, the weighing mechanism also includes: a support plate connected to the telescopic end of the first cylinder; wherein The weighing sensor is mounted on the support plate; The support plate is located within the third clearance section; and The first cylinder is adapted to move the support plate and the weighing sensor upward when it extends, and the support plate and the weighing sensor push up the piston in the piston placement part after passing through the first clearance part.

[0010] Furthermore, the rotating mechanism further includes: a rubber ring disposed within the piston placement portion; wherein The rubber ring is adapted to contact the piston.

[0011] Furthermore, the marking mechanism also includes: a support member disposed on the worktable; wherein The second cylinder is mounted on the support member.

[0012] Furthermore, the marking mechanism further includes: an L-plate connected to the telescopic end of the second cylinder, at least two open elastic clips disposed on the L-plate, and a baffle disposed on the L-plate; wherein The marker is adapted to be inserted into an open elastic clip; and The baffle is adapted to contact the end of the marker pen to limit the marker pen's position.

[0013] The beneficial effects of this utility model are: (I) The main control module of this utility model controls the turntable 11 of the rotating mechanism 1 to perform intermittent motion, so that each piston placement part 111 rotates sequentially above the weighing sensor 22. When any piston placement part 111 reaches the designated position, the main control module controls the first cylinder 21 to extend. The first cylinder 21 drives the weighing sensor 22 to pass through the first clearance part 112 inside the piston placement part 111 and lifts the piston placed inside the piston placement part 111. At this time, the weighing sensor 22 weighs the piston and uploads the weight data to the main control module. The main control module analyzes and judges the uploaded weight data. If the piston weight is qualified, the first cylinder 21 retracts, the rotating mechanism 1 continues to rotate, and the piston is moved to the next station. If the piston weight is unqualified, the main control module controls the second cylinder 31 to extend. The second cylinder 31 pushes the marker. When the pen 32 contacts the lifted piston, the first cylinder 21 retracts to mark the piston. After marking, the second cylinder 31 retracts, and the rotating mechanism 1 continues to rotate, transferring the marked defective pistons to the subsequent processing station. Through the continuous rotation of the rotating mechanism 1 and the automatic control of the main control module, the piston inspection process is fast and efficient. Compared with manual inspection, it greatly shortens the inspection time for each piston and effectively improves production efficiency. At the same time, it reduces manual operation, avoids visual fatigue and decreased attention caused by long-term repetitive labor, and reduces the probability of human errors such as misreading numbers, misremembering standards, or misclassifying groups. This ensures the accuracy of piston inspection, avoids the situation where pistons are misclassified due to human error, and prevents the packaging of unqualified pistons, thus improving product quality.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a perspective view of a preferred embodiment of the overall upper part of this utility model; Figure 2 This is a perspective view of a preferred embodiment of the lower part of the present invention; Figure 3 This is a perspective view of a preferred embodiment of the upper part of the workbench of this utility model; Figure 4 This is a perspective view of a preferred embodiment of the lower part of the workbench of this utility model; Figure 5 This is a cross-sectional view of a preferred embodiment of the turntable and worktable of this utility model; Figure 6 This is a perspective view of a preferred embodiment of the turntable of this utility model; Figure 7 yes Figure 3 A magnified view of region A in the middle.

[0018] In the picture: Rotating mechanism 1, turntable 11, piston placement part 111, first clearance part 112, reducer 12, motor 13, rubber ring 14; Weighing mechanism 2, first cylinder 21, weighing sensor 22, support plate 23; Marking mechanism 3, second cylinder 31, marker pen 32, support 33, L plate 34, open elastic clamp 35, baffle 36; Workbench 4, Second Alternating Section 41, Third Alternating Section 42. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example 1

[0020] like Figures 1 to 7 As shown, this embodiment provides a detection device for diesel engine pistons, including: A rotating mechanism 1 includes: a turntable 11; wherein a plurality of piston placement portions 111 are arranged in a circular array on the turntable 11; and each piston placement portion 111 is provided with a first clearance portion 112; a weighing mechanism 2 includes: a first cylinder 21 disposed below the turntable 11 and a weighing sensor 22 connected to the telescopic end of the first cylinder 21; wherein the first cylinder 21 and the weighing sensor 22 are located below the rotation path of the piston placement portions 111; a marking mechanism 3 includes: a second cylinder 31 disposed on one side of the turntable 11 and a marker pen 32 connected to the telescopic end of the second cylinder 31; and a main control module electrically connected to the rotating mechanism 1, the first cylinder 21, and the second cylinder 31; wherein the main control module is adapted to control the intermittent movement of the rotating mechanism 1, so that... Any piston placement part 111 is located above the weighing sensor 22; the main control module is adapted to control the first cylinder 21 to extend so that the weighing sensor 22 passes through the first clearance part 112 and lifts the piston in the piston placement part 111 to weigh the piston; the main control module is adapted to judge based on the weight data uploaded by the weighing sensor 22, and if the piston weight is unqualified, control the second cylinder 31 to extend so that the marker pen 32 contacts the piston to mark the defect; wherein the rotation of the turntable 11 allows the pistons in the circularly arrayed piston placement parts 111 to be detected in an orderly manner, improving the continuity and efficiency of the detection; wherein the piston placement part 111 is set to position the piston and prevent the piston from moving, so as to ensure the accuracy of the detection.

[0021] In this embodiment, the main control module controls the turntable 11 of the rotating mechanism 1 to move intermittently, causing each piston placement part 111 to rotate sequentially above the weighing sensor 22. When any piston placement part 111 reaches the designated position, the main control module controls the first cylinder 21 to extend. The first cylinder 21 drives the weighing sensor 22 through the first clearance part 112 inside the piston placement part 111, and lifts the piston placed inside the piston placement part 111. At this time, the weighing sensor 22 weighs the piston and uploads the weight data to the main control module. The main control module analyzes and judges the uploaded weight data. If the piston weight is qualified, the first cylinder 21 retracts, and the rotating mechanism 1 continues to rotate, moving the piston to the next station. If the piston weight is unqualified, the main control module controls the second cylinder 31 to extend, and the second cylinder 31 pushes the marker pen. When cylinder 32 contacts the lifted piston, cylinder 21 retracts to mark the piston. After marking, cylinder 31 retracts, and rotating mechanism 1 continues to rotate, transferring the marked defective piston to the subsequent processing station. Through the continuous rotation of rotating mechanism 1 and the automatic control of the main control module, the piston inspection process is fast and efficient. Compared with manual inspection, it greatly shortens the inspection time for each piston and effectively improves production efficiency. At the same time, it reduces manual operation, avoids visual fatigue and decreased attention caused by long-term repetitive labor, and reduces the probability of human errors such as misreading numbers, misremembering standards, or misclassifying groups. This ensures the accuracy of piston inspection and avoids the situation where pistons are misclassified due to human error, resulting in the packaging and shipment of pistons that do not meet the weight requirements, thus improving product quality.

[0022] The rotating mechanism 1 further includes: a speed reducer 12 and a motor 13 connected to the speed reducer 12; wherein the output shaft of the speed reducer 12 is connected to the bottom of the turntable 11; the motor 13 is adapted to drive the turntable 11 to rotate through the speed reducer 12; the main control module is electrically connected to the motor 13; wherein by setting the speed reducer 12 to connect the motor 13 and the turntable 11, the speed of the motor 13 is reduced and the torque is increased.

[0023] A workbench 4 is provided below the turntable 11; the workbench 4 is provided with a second clearance part 41 and a third clearance part 42; the reducer 12, the motor 13 and the first cylinder 21 are all located below the workbench 4; the output shaft of the reducer 12 passes through the second clearance part 41 and is connected to the turntable 11; the telescopic end of the first cylinder 21 is located inside the third clearance part 42; wherein the workbench 4 is provided to connect the reducer 12 and the first cylinder 21.

[0024] The weighing mechanism 2 further includes: a support plate 23 connected to the telescopic end of the first cylinder 21; wherein the weighing sensor 22 is disposed on the support plate 23; the support plate 23 is located within the third clearance portion 42; and the first cylinder 21 is adapted to drive the support plate 23 and the weighing sensor 22 upward when it extends, and the support plate 23 and the weighing sensor 22 push up the piston in the piston placement portion 111 after passing through the first clearance portion 112; wherein by providing the support plate 23, a stable support is provided for the weighing sensor 22.

[0025] The rotating mechanism 1 further includes a rubber ring 14 disposed within the piston placement portion 111; wherein the rubber ring 14 is adapted to contact the piston; wherein by providing the rubber ring 14, hard contact between the piston and the piston placement portion 111 is prevented, preventing scratches or damage to the piston surface and protecting the appearance and precision of the piston; at the same time, there is a certain friction between the rubber ring 14 and the piston, which helps to fix the position of the piston and prevent the piston from shifting or shaking due to centrifugal force during the rotation of the turntable 11, ensuring the accuracy of weighing and other detection operations; by using the rubber ring 14, since it is a ring structure, its middle part can avoid the weighing sensor and the support plate 23 without affecting the normal weighing detection effect.

[0026] The marking mechanism 3 further includes a support 33 disposed on the workbench 4; wherein the second cylinder 31 is disposed on the support 33; wherein by disposing of the support 33, the second cylinder 31 and the marker pen 32 are raised to a position adapted to the piston for marking the piston.

[0027] The marking mechanism 3 further includes: an L-plate 34 connected to the telescopic end of the second cylinder 31, at least two open elastic clips 35 disposed on the L-plate 34, and a baffle 36 disposed on the L-plate 34; wherein the marker pen 32 is adapted to be inserted into the open elastic clips 35; and the baffle 36 is adapted to contact the tail end of the marker pen 32 to limit the marker pen 32; wherein the open elastic clips 35 are provided to tightly clamp the marker pen 32 by their own elasticity, preventing the marker pen 32 from falling off during the marking process; and also facilitating the replacement of the marker pen 32; wherein the baffle 36 is provided to position and limit the marker pen 32, avoiding the effect of inaccurate marking due to inaccurate position of the marker pen 32.

[0028] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0029] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0032] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0033] In addition, in the various embodiments of this utility model, each functional unit can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A detection device for diesel engine pistons, characterized in that, include: Rotating mechanism (1), comprising: turntable (11); wherein The turntable (11) is provided with a circular array of piston placement parts (111); and Each of the piston placement parts (111) is provided with a first clearance part (112). The weighing mechanism (2) includes: a first cylinder (21) disposed below the turntable (11) and a weighing sensor (22) connected to the telescopic end of the first cylinder (21); wherein The first cylinder (21) and the weighing sensor (22) are located below the rotation path of the piston placement part (111); The marking mechanism (3) includes: a second cylinder (31) disposed on one side of the turntable (11) and a marker pen (32) connected to the telescopic end of the second cylinder (31). The main control module is electrically connected to the rotating mechanism (1), the first cylinder (21), and the second cylinder (31); wherein The main control module is adapted to control the intermittent movement of the rotating mechanism (1) so that any piston placement part (111) is located above the weighing sensor (22); The main control module is adapted to control the first cylinder (21) to extend so that the weighing sensor (22) passes through the first clearance part (112) and pushes up the piston in the piston placement part (111) to weigh the piston; The main control module is adapted to make a judgment based on the weight data uploaded by the weighing sensor (22). If the piston weight is not up to standard, it controls the second cylinder (31) to extend so that the marker pen (32) contacts the piston to make a defect mark.

2. The detection device for diesel engine pistons as described in claim 1, characterized in that, The rotating mechanism (1) further includes: a speed reducer (12) and a motor (13) connected to the speed reducer (12); wherein The output shaft of the reducer (12) is connected to the bottom of the turntable (11); The motor (13) is adapted to drive the turntable (11) to rotate via the reducer (12); The main control module is electrically connected to the motor (13).

3. The detection device for diesel engine pistons as described in claim 2, characterized in that, A workbench (4) is provided below the turntable (11). The workbench (4) is provided with a second clearance part (41) and a third clearance part (42). The reducer (12), motor (13) and first cylinder (21) are all located below the workbench (4); The output shaft of the reducer (12) passes through the second clearance part (41) and is connected to the turntable (11); The telescopic end of the first cylinder (21) is located inside the third clearance part (42).

4. The detection device for diesel engine pistons as described in claim 3, characterized in that, The weighing mechanism (2) further includes: a support plate (23) connected to the telescopic end of the first cylinder (21); wherein The weighing sensor (22) is mounted on the support plate (23); The support plate (23) is located within the third clearance portion (42); and The first cylinder (21) is adapted to drive the support plate (23) and the weighing sensor (22) to move upward when it extends. After the support plate (23) and the weighing sensor (22) pass through the first clearance part (112), they push up the piston in the piston placement part (111).

5. The detection device for diesel engine pistons as described in claim 4, characterized in that, The rotating mechanism (1) further includes: a rubber ring (14) disposed within the piston placement portion (111); wherein The rubber ring (14) is adapted to contact the piston.

6. The detection device for diesel engine pistons as described in claim 5, characterized in that, The marking mechanism (3) further includes: a support member (33) disposed on the workbench (4); wherein The second cylinder (31) is mounted on the support (33).

7. The detection device for diesel engine pistons as described in claim 6, characterized in that, The marking mechanism (3) further includes: an L-plate (34) connected to the telescopic end of the second cylinder (31), at least two open elastic clips (35) disposed on the L-plate (34), and a baffle (36) disposed on the L-plate (34); wherein The marker (32) is adapted to be inserted into the open elastic clip (35); and The baffle (36) is adapted to contact the end of the marker (32) to limit the marker (32).

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