Limiting device for preventing cylinder sleeve from being reversely placed

Abstract

The utility model relates to the technical field of die casting. A limiting device for preventing a cylinder sleeve from being reversely placed comprises a workbench on the front side, a heating box is arranged on the rear side of the workbench, and a plurality of conveying channels are arranged between the workbench and the heating box; a correction box is arranged on the front side of the workbench, a plurality of partition plates are arranged in the correction box and divide the correction box into a plurality of correction channels communicated with the conveying channel, each partition plate is provided with a positioning protrusion corresponding to a groove in the cylinder sleeve, and a detachable discharging groove is formed in the front side of the correction box. According to the limiting device for preventing the cylinder sleeve from being reversely placed, correction can be carried out when the cylinder sleeve is placed, operation can only be carried out according to specific steps, the reversely-placed cylinder sleeve can be effectively prevented from entering a heating box, production and machining are facilitated, and the product quality is guaranteed. The technical problems that in the prior art, an existing reversely-placed cylinder sleeve is prone to entering a heating box, manual visual inspection is prone to being missed, and the situation of product abnormity probably caused by manual visual inspection cannot be solved are solved.

Description

Technical Field

[0001] This utility model relates to the field of die casting technology, and in particular to a limiting device for preventing cylinder liner from being installed backwards. Background Technology

[0002] Engine block parts, the middle combustion cylinder is made of steel cylinder liners. During the die casting process, the cylinder liners need to be heated and placed into the mold for production. However, MP cylinder block cylinder liners have a right and wrong orientation. If they are placed in the wrong orientation, the water passage between the cylinder liners will be machined into the cylinder liners, which will cause product abnormalities.

[0003] Because the cylinder liner is completely encased in aluminum, it may go undetected if it is installed backwards. Failure to detect it could lead to the scrapping of the entire engine, posing an extremely high risk. It is also easy to miss by visual inspection. Furthermore, since the rear heating box heats the cylinder liner to 200 degrees Celsius, conventional probe detection will fail, making it impossible to prevent the cylinder liner from being installed backwards. Therefore, there is a need for improvement. Utility Model Content

[0004] This utility model provides a limit device for preventing cylinder liners from being placed backwards. It can be corrected during cylinder liner placement and can only be operated according to specific steps. This effectively prevents backward-placed cylinder liners from entering the heating chamber, which could lead to subsequent product abnormalities. It facilitates production and processing and ensures product quality. It solves the technical problem in the prior art that backward-placed cylinder liners can easily enter the heating chamber, which is easy to miss by manual visual inspection, and ordinary probe equipment is prone to failure, and cannot solve the technical problem that may lead to product abnormalities.

[0005] The above-mentioned technical problem of this utility model is solved by the following technical solution: a limiting device for preventing cylinder liner from being placed backwards includes a front worktable, a heating box is provided on the rear side of the worktable, and several conveying channels are provided between the worktable and the heating box, through which the cylinder liner is conveyed to the heating box by a conveyor belt; a calibration box is provided on the front side of the worktable, the calibration box is open from front to back, and several partitions are provided inside the calibration box, the partitions divide the calibration box into several calibration channels communicating with the conveying channels, each partition is provided with a positioning protrusion corresponding to the groove on the cylinder liner, and a detachable discharge chute is provided on the front side of the calibration box. During operation, the operator places the cylinder liner into the discharge trough from the top and pushes it into the calibration box. If the cylinder liner is not placed upside down, the positioning protrusion at the bottom of the partition plate will engage with the groove on the cylinder liner, allowing it to be pushed in normally. The conveyor belt then transports the cylinder liner to the heating box for heating. If the cylinder liner is placed upside down, the positioning protrusion at the bottom of the partition plate will jam the cylinder liner, preventing it from being pushed in further. This invention effectively avoids the risk of water leakage or cylinder cracking caused by the water passage holes being machined onto the cylinder liner during subsequent cylinder block machining due to the cylinder liner being placed upside down. The calibration box and discharge trough effectively prevent the cylinder liner from entering the die-casting island if it is not placed upside down. During manual operation, the cylinder liner cannot be inserted onto the conveyor belt and must be calibrated by the calibration box.

[0006] Preferably, the top of the discharge chute is an open structure, and the cylinder liner is inserted from the top of the discharge chute. During operation, the operator inserts the cylinder liner into the discharge chute from the top, and then pushes the cylinder liner into the calibration box.

[0007] Preferably, the discharge chute consists of several baffles forming several independent spaces, each of which is connected to the calibration channel. The discharge chute can be fixed to the calibration box with bolts or other parts, and can be installed or removed as needed. The discharge chute is connected to the calibration channel for pushing in the cylinder liner.

[0008] Preferably, the discharge trough has several operating windows on its front side. During operation, the operator inserts the cylinder liner into the discharge trough from the top and pushes it into the calibration box through the operating windows, which facilitates both observation and operation.

[0009] Preferably, each of the aforementioned partitions has a wedge-shaped guide plate integrally formed on its front side. The guide plate has a symmetrical wedge-shaped structure, which facilitates the smooth pouring of the cylinder liner into the calibration channel.

[0010] Preferably, the positioning protrusion is a smooth, arc-shaped protrusion. The position and shape of the positioning protrusion can be adjusted according to the specific structure of the cylinder liner. This utility model uses a smooth, arc-shaped protrusion as an example for explanation. During operation, the operator places the cylinder liner into the discharge trough from the top and pushes it into the calibration box through the operating window. If the cylinder liner is not placed upside down, the positioning protrusion at the bottom of the partition plate will engage with the groove on the cylinder liner, allowing it to be pushed in normally. The conveyor belt will transport the cylinder liner to the heating box for heating. If the cylinder liner is placed upside down, the positioning protrusion at the bottom of the partition plate will jam the cylinder liner, preventing it from being pushed in further.

[0011] Preferably, the positioning protrusions are integrally formed on both sides of the partition plate. These integrally formed positioning protrusions on both sides of the partition plate are used for positioning and correction on both sides of the cylinder liner.

[0012] Therefore, the limiting device for preventing cylinder liner from being placed backwards has the following advantages: it can be corrected when the cylinder liner is inserted, and it can only be operated according to specific steps. It can effectively prevent the cylinder liner from being placed backwards from entering the heating box and causing abnormalities in subsequent products, which facilitates production and processing and ensures product quality. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a limiting device for preventing cylinder liner from being installed backwards, according to this utility model.

[0014] Figure 2 yes Figure 1 A schematic diagram of the main structure.

[0015] Figure 3yes Figure 1 A schematic diagram of the front sectional view of the structure.

[0016] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0017] Figure 5 yes Figure 1 A top-view sectional structural diagram.

[0018] In the diagram, 1 is the workbench, 2 is the conveying channel, 3 is the calibration box, 4 is the partition, 5 is the calibration channel, 6 is the guide plate, 7 is the positioning protrusion, 8 is the discharge chute, and 9 is the operation window. Detailed Implementation

[0019] The technical solution of the utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0020] Example:

[0021] like Figure 1 and 2 As shown in Figures 3, 4, and 5, a limiting device for preventing cylinder liner from being placed backwards includes a front workbench 1, a heating box installed on the rear side of the workbench 1, and several conveying channels 2 installed between the workbench 1 and the heating box. A conveyor belt is installed at the bottom of the conveying channels 2, and the cylinder liner is conveyed into the heating box by the conveyor belt.

[0022] A calibration box 3 is installed on the front side of the workbench 1. The calibration box 3 is open from front to back. Several partitions 4 are installed inside the calibration box 3. The partitions 4 divide the calibration box 3 into several calibration channels 5 that are connected to the conveying channel 2. Each partition 4 has a wedge-shaped guide plate 6 integrally formed at the bottom of its front side. The guide plate 6 has a symmetrical structure.

[0023] Each partition 4 has a positioning protrusion 7 integrally formed on both the left and right sides, which corresponds to the groove on the cylinder liner. The positioning protrusion 7 is a smooth arc-shaped protrusion.

[0024] The front side of the calibration box 3 is equipped with a detachable discharge trough 8. The top of the discharge trough 8 is an open structure. The cylinder liner is inserted from the top of the discharge trough 8. The discharge trough 8 consists of several baffles forming several independent spaces. Each independent space is connected to the calibration channel 5. Several operation windows 9 are opened on the front side of the discharge trough 8.

[0025] During operation, the operator places the cylinder liner into the discharge trough 8 from the top and pushes it into the calibration box 3 through the operation window 9. If the cylinder liner is not placed upside down, the positioning protrusion 7 at the bottom of the partition 4 will engage with the groove on the cylinder liner, allowing it to be pushed in normally. The conveyor belt will then transport the cylinder liner to the heating box for heating. If the cylinder liner is placed upside down, the positioning protrusion 7 at the bottom of the partition 4 will jam the cylinder liner, preventing it from being pushed in further.

[0026] This invention can effectively avoid the risk of water leakage or cylinder cracking caused by the water passage holes being machined onto the cylinder liner during subsequent cylinder block machining due to the cylinder liner being installed backwards. The calibration box 3 and the discharge chute 8 can effectively prevent the cylinder liner from entering the die casting island. During manual operation, the cylinder liner cannot be inserted onto the conveyor belt and must be calibrated by the calibration box 3.

[0027] The specific embodiments described herein are merely illustrative of the concept of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A limiting device for preventing cylinder liner from being installed backwards, characterized in that: The device includes a front workbench, a heating box at the rear of the workbench, and several conveying channels between the workbench and the heating box. Cylinder liners are conveyed into the heating box via a conveyor belt. A calibration box is located at the front of the workbench, and the calibration box is open from front to back. Several partitions are provided inside the calibration box, which divide the calibration box into several calibration channels that communicate with the conveying channels. Each partition has a positioning protrusion that corresponds to a groove on the cylinder liner. A detachable discharge chute is located at the front of the calibration box.

2. The limiting device for preventing cylinder liner reversal according to claim 1, characterized in that: The top of the discharge trough is an open structure, and the cylinder liner is inserted from the top of the discharge trough.

3. The limiting device for preventing cylinder liner reversal according to claim 2, characterized in that: The feeding trough consists of several baffles forming several independent spaces, each of which is connected to the calibration channel.

4. The limiting device for preventing cylinder liner reversal according to claim 3, characterized in that: Several operation windows are provided on the front side of the discharge trough.

5. The limiting device for preventing cylinder liner reversal according to claim 1, characterized in that: Each of the aforementioned partitions has a wedge-shaped guide plate integrally formed on its front side.

6. The limiting device for preventing cylinder liner reversal according to claim 1, characterized in that: The positioning protrusion is a smooth, arc-shaped protrusion.

7. A limiting device for preventing cylinder liner reversal according to claim 6, characterized in that: The positioning protrusions are integrally formed on the left and right sides of the partition.

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