A CNC device for sealing crankshaft oil passages

By designing a CNC machine for sealing crankshaft oil passages, and utilizing components such as a rotary table and servo electric cylinders, the machine achieves automated press-fitting of crankshaft oil passage sealing. This solves the problems of high labor intensity and low efficiency in existing technologies, adapts to the needs of multi-variety, small-batch production, and improves production efficiency.

CN116214115BActive Publication Date: 2026-03-06QING DAO DE SHENG JI XIE ZHI ZAO YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-04
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing crankshaft oil passage sealing methods are labor-intensive and inefficient, making them unsuitable for small-batch, multi-variety parts processing, especially since the pressing of multiple steel balls in a four-cylinder crankshaft presents interference problems.

Method used

A crankshaft oil circuit plugging CNC equipment was designed, including a feeding bin, a discharging bin, a transfer device, a bearing device, and a riveting device. The angle and position are adjusted by a rotary table, and the automatic riveting of the plugging parts is achieved by using a servo electric cylinder and a cross slide. Combined with a supply device and a CNC system, it can realize multi-variety small-batch production.

Benefits of technology

It has achieved automated press-fitting of oil circuit plugs for various types of crankshafts, reduced manual operation, improved production efficiency, adapted to the oil circuit plugging needs of different specifications of workpieces, and reduced labor intensity and failure rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application discloses a CNC equipment for sealing crankshaft oil passages, including a loading bin, a unloading bin, a transfer device, a bearing device, and a riveting device. The loading bin and unloading bin are used to store the workpiece to be processed; the transfer device is used to transfer the workpiece to be processed; the bearing device includes a rotary table and a clamping assembly installed on the rotary table, the clamping assembly is used to fix the workpiece to be processed, and the rotary table is used to adjust the angle position of the workpiece to be processed; the riveting device is used to rivet the sealing component into the workpiece to be processed. With the above-mentioned CNC equipment for sealing crankshaft oil passages, the angle position of the workpiece to be processed can be adjusted on the bearing device, facilitating the riveting device to rivet the sealing component into the workpiece to be processed, thus meeting the oil passage sealing requirements of different positions for workpieces of different specifications.
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Description

Technical Field

[0001] This application relates to the field of oil circuit sealing technology, and in particular to a CNC device for sealing crankshaft oil circuits. Background Technology

[0002] Please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the first type of crankshaft oil passage sealing in the prior art. Figure 2 This is a schematic diagram of the oil passage sealing of the second type of crankshaft in the prior art. Figure 3 This is a schematic diagram of the oil passage sealing of the third type of crankshaft in the prior art. During the machining of a multi-cylinder crankshaft (part 02 to be machined) for a motorcycle engine, process holes are machined during the oil passage machining process to facilitate the flow of oil and supply lubricating oil to the shaft diameter. These holes become useless after the oil passage machining is completed. To ensure the oil passage is sealed, the process holes need to be sealed using a specific process method, such as... Figures 1 to 3 As shown, this is typically done at both ends of the oil hole (as above). Figure 1 As shown in the diagram, a press-fit steel ball (sealing component 01) is used to seal the oil passage process hole by using the interference fit between the steel ball and the hole wall. The location of each oil hole is different for different crankshafts, and the number of press-fit steel balls also varies.

[0003] Please refer to Figures 4 to 6 , Figure 4 This is a schematic diagram of the first steel ball in the crankshaft press-fitting process in the prior art. Figure 5 This is a schematic diagram of the crankshaft press-fitting of the second steel ball in the prior art. Figure 6 This is a schematic diagram of a horizontal riveting machine used in existing technology for riveting steel balls. Currently, the conventional methods for sealing crankshaft oil passages are:

[0004] One method is to press-fit two or more steel balls for each crankshaft separately using a vertical press, such as... Figure 4 and Figure 5 As shown, after riveting one steel ball, the crankshaft is manually flipped to rivet the second steel ball. Problems exist: ① Only one steel ball can be riveted at a time; after riveting, the crankshaft needs to be reversed to rivet the other end, resulting in high labor intensity and low efficiency; ② Manual riveting involves a large amount of labor for handling; ③ Manual installation of the steel balls is time-consuming and labor-intensive.

[0005] Method two involves using a horizontal riveting machine for riveting and sealing, such as... Figure 6 As shown, specialized machines are manufactured for different product types. Two steel balls can be pressed out at once, but only one type of part can be pressed. After changing parts, the pressing operation becomes impossible due to differences in the position and angle of the oil holes. This method is only suitable for large-volume processing of single-product parts and is not applicable to small-volume processing of multiple-product parts. This is especially true for crankshafts with large cylinder diameters, such as... Figure 3The four-cylinder crankshaft shown cannot be press-fitted with four steel balls simultaneously using this special machine, because simultaneous pressing would cause interference.

[0006] Both of the above methods have certain limitations. Therefore, how to provide a CNC device for sealing crankshaft oil circuits to solve the above technical problems is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0007] The purpose of this application is to provide a CNC equipment for sealing crankshaft oil passages, in which the workpiece to be processed can be angularly and positionally adjusted on the bearing device, so that the riveting device can rivet the sealing part into the workpiece to meet the oil passage sealing requirements of different positions of workpieces of different specifications.

[0008] To achieve the above objectives, this application provides a CNC device for crankshaft oil circuit plugging, comprising:

[0009] The loading and unloading bins are used to store parts to be processed;

[0010] A transfer device used to transfer workpieces to be processed;

[0011] The supporting device includes a rotary table and a clamping assembly mounted on the rotary table. The clamping assembly is used to fix the workpiece to be processed, and the rotary table is used to adjust the angular position of the workpiece to be processed.

[0012] A riveting device is used to rivet the sealing component into the workpiece to be processed.

[0013] In some embodiments, an adjustment device is also included, wherein the riveting device is mounted on the adjustment device, and the adjustment device is used to adjust the spatial position of the riveting device.

[0014] In some embodiments, the adjusting device includes a cross slide, the plane of motion of which is parallel to the plane of motion of the rotary table.

[0015] In some embodiments, a supply device is also included, the supply device storing a sealing element and for supplying the sealing element to the riveting device for riveting into the workpiece.

[0016] In some embodiments, the supply device includes a mounting base, a storage bin and a pressure rod mounted on the mounting base, wherein the pressure rod, under the action of the riveting device, rivets a sealing member that slides out of the storage bin into the workpiece to be processed.

[0017] In some embodiments, the pressure rod is slidable relative to the mounting base and a return spring is provided between the pressure rod and the mounting base. The pressure rod is reset after the sealing member is pressed and riveted into the workpiece by the action of the return spring.

[0018] In some embodiments, the riveting device includes a servo electric cylinder and a pressure head connected to the actuating end of the servo electric cylinder.

[0019] In some embodiments, a pressure sensor is installed at the actuating end of the servo electric cylinder, and the pressure sensor is used to collect and record the pressure information of each sealing component on the workpiece to be processed.

[0020] In some embodiments, the clamping assembly includes a limiting seat and a clamping cylinder located beside the limiting seat. The limiting seat is used to position the workpiece to be processed, and the clamping cylinder is used to fix the workpiece to be processed.

[0021] In some embodiments, the limiting seat and the clamping cylinder have multiple contact points with the workpiece, and the limiting seat adopts a V-shaped design.

[0022] Compared to the aforementioned background technology, the crankshaft oil passage plugging CNC equipment provided in this application includes a loading bin, a unloading bin, a transfer device, a bearing device, and a riveting device; the loading bin and unloading bin are used to store the workpiece to be processed; the transfer device is used to transfer the workpiece to be processed; the bearing device includes a rotary table and a clamping assembly installed on the rotary table, the clamping assembly is used to fix the workpiece to be processed, and the rotary table is used to adjust the angle and position of the workpiece to be processed; the riveting device is used to rivet the plugging component into the workpiece to be processed.

[0023] In the operation of this CNC crankshaft oil passage plugging equipment, the transfer device transfers the workpiece to be processed from the loading bin to the bearing device. The clamping assembly of the bearing device fixes the workpiece, and the rotary table of the bearing device rotates to adjust the angle and position of the workpiece. Then, the riveting device rivets the plugging component into the workpiece. After plugging one position of the oil passage of the workpiece, the rotary table of the bearing device continues to rotate and adjust the angle and position of the workpiece, repeating the above process until all positions of the workpiece are plugged. The transfer device then transfers the plugged workpiece to the unloading bin, and the transfer device continues to transfer the workpiece from the loading bin to the bearing device, repeating the above process until all workpieces are plugged. During the above process, the angle and position of the workpiece can be adjusted on the bearing device, which facilitates the riveting device to rivet the plugging component into the workpiece. This CNC crankshaft oil passage plugging equipment meets the oil passage plugging requirements of different positions of workpieces of different specifications. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the oil passage sealing of the first type of crankshaft in the prior art;

[0026] Figure 2 This is a schematic diagram of the oil passage sealing of the second type of crankshaft in the prior art;

[0027] Figure 3 This is a schematic diagram of the oil passage sealing of the third type of crankshaft in the prior art;

[0028] Figure 4 This is a schematic diagram of the first steel ball being press-fitted into a crankshaft in the prior art;

[0029] Figure 5 This is a schematic diagram of the crankshaft press-fitting of the second steel ball in the prior art;

[0030] Figure 6 This is a schematic diagram of a horizontal riveting machine riveting steel balls in the prior art;

[0031] Figure 7 This is a front view of the crankshaft oil passage sealing CNC equipment provided in the embodiments of this application;

[0032] Figure 8 This is a top view of the crankshaft oil passage sealing CNC equipment provided in the embodiments of this application;

[0033] Figure 9 A top view of the clamping assembly provided in an embodiment of this application;

[0034] Figure 10 A front view of the limiting seat provided in an embodiment of this application;

[0035] Figure 11 This is a first schematic diagram of the press-fit steel ball of the crankshaft oil passage sealing CNC equipment provided in the embodiments of this application;

[0036] Figure 12 This is a second schematic diagram of the press-fit steel ball of the crankshaft oil passage sealing CNC equipment provided in the embodiments of this application;

[0037] Figure 13 This is a third schematic diagram of the press-fit steel ball in the CNC equipment for sealing crankshaft oil passages provided in this application embodiment;

[0038] Figure 14 A front view of the supply device provided in the embodiments of this application;

[0039] Figure 15 A top view of the supply device provided in an embodiment of this application;

[0040] Figure 16 This is a first schematic diagram of the supply device for pressing and riveting steel balls provided in an embodiment of this application;

[0041] Figure 17 This is a second schematic diagram of the supply device for pressing and riveting steel balls provided in an embodiment of this application;

[0042] Figure 18 This is a third schematic diagram of the supply device for pressing the steel ball according to an embodiment of this application.

[0043] in:

[0044] 01-Blocking component, 02-Workpiece to be processed, 11-Feeding bin, 12-Unloading bin, 2-Transfer device, 3-Bearing device, 4-Riveting device, 5-Adjusting device, 6-Supply device, 7-Machine tool, 31-Rotary table, 32-Clamping assembly, 61-Mounting base, 62-Storage bin, 63-Pressure rod, 64-Reset spring, 321-Limit seat, 322-Clamping cylinder. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] Please refer to Figures 7 to 13 ,in, Figure 7 This is a front view of the crankshaft oil passage sealing CNC equipment provided in the embodiments of this application. Figure 8 This is a top view of the crankshaft oil passage plugging CNC equipment provided in the embodiments of this application. Figure 9 This is a top view of the clamping assembly provided in an embodiment of this application. Figure 10 This is a front view of the limiting seat provided in the embodiment of this application. Figure 11 This is a first schematic diagram of the press-fit steel ball in the crankshaft oil passage sealing CNC equipment provided in this application embodiment. Figure 12 This is a second schematic diagram of the press-fit steel ball in the crankshaft oil passage sealing CNC equipment provided in this application embodiment. Figure 13 This is a third schematic diagram of the press-fit steel ball of the crankshaft oil circuit sealing CNC equipment provided in the embodiments of this application.

[0048] In a first specific embodiment, this application provides a crankshaft oil circuit plugging CNC equipment, which mainly includes a feeding bin 11, a discharging bin 12, a transfer device 2, a bearing device 3, and a riveting device 4.

[0049] In this embodiment, the loading bin 11 and the unloading bin 12 are used to store the workpiece 02 to be processed; wherein, the loading bin 11 stores the workpiece 02 to be processed that has not yet been sealed with oil circuit, and the unloading bin 12 stores the workpiece 02 to be processed that has been sealed with oil circuit.

[0050] The transfer device 2 is used to transfer the workpiece 02 to be processed. In use, the transfer device 2 transfers the workpiece 02 to be processed from the loading bin 11 to the carrying device 3, and transfers the workpiece 02 to be processed from the carrying device 3 to the unloading bin 12. It should be noted that the transfer device 2 has various structural forms, including but not limited to various robotic arms and robotic hands. As long as it can realize the transfer of the workpiece 02 to be processed, it should also be within the scope of this embodiment.

[0051] The carrying device 3 includes a rotary table 31 and a clamping assembly 32 mounted on the rotary table 31. In use, the transfer device 2 transfers the workpiece 02 to be processed from the loading bin 11 to the clamping assembly 32 of the carrying device 3. The clamping assembly 32 fixes the workpiece 02. At this time, the angle and position of the workpiece 02 are adjusted by rotating the rotary table 31. It should be noted that there are various structural forms of the clamping assembly 32, including but not limited to various types of clamps. As long as the workpiece 02 can be fixed, it should be within the scope of this embodiment.

[0052] The riveting device 4 is used to rivet the sealing component 01 into the workpiece 02 to be processed. In use, the workpiece 02 to be processed on the bearing device 3 is adjusted to a suitable angle position, and the riveting device 4 is activated. Under the action of the riveting device 4, the sealing component 01 is riveted into the workpiece 02 to be processed. It should be noted that there are various structural forms of the riveting device 4, including but not limited to horizontal riveting machines. As long as it can realize the riveting of the sealing component 01 on the workpiece 02 to be processed, it should also be within the scope of this embodiment.

[0053] Among them, the sealing component 01 can be a steel ball, and the workpiece to be processed 02 can be a crankshaft.

[0054] During the operation of the crankshaft oil circuit blocking CNC equipment, the transfer device 2 transfers the workpiece 02 to be processed from the loading bin 11 to the bearing device 3. The clamping assembly 32 of the bearing device 3 fixes the workpiece 02 to be processed. The rotary table 31 of the bearing device 3 rotates to adjust the angle position of the workpiece 02 to be processed. Then, the riveting device 4 rivets the blocking part 01 into the workpiece 02 to be processed. After the oil circuit blocking of one position of the workpiece 02 is completed, the rotary table 31 of the bearing device 3 continues to rotate to adjust the angle position of the workpiece 02 to be processed. The above process is repeated until the oil circuit blocking of all positions of the workpiece 02 is completed. The transfer device 2 transfers the workpiece 02 to the unloading bin 12 after the oil circuit blocking is completed. The transfer device 2 continues to transfer the workpiece 02 to be processed from the loading bin 11 to the bearing device 3. The above process is repeated until the oil circuit blocking of all workpieces 02 is completed. During the above process, the workpiece 02 can be adjusted in angle and position on the bearing device 3, so that the riveting device 4 can rivet the sealing part 01 into the workpiece 02. This crankshaft oil circuit sealing CNC equipment meets the oil circuit sealing requirements of different positions of workpieces 02 with different specifications.

[0055] In some embodiments, the clamping assembly 32 includes a limiting seat 321 and a clamping cylinder 322 located beside the limiting seat 321. The limiting seat 321 is used to position the workpiece 02 to be processed, and the clamping cylinder 322 is used to fix the workpiece 02 to be processed.

[0056] In this embodiment, in order to accurately position the crankshaft (workpiece 02), the limiting seat 321 is specially designed according to different types of crankshafts. The crankshaft is installed on the limiting seat 321, and the plane where each oil hole is located is designed to be parallel to the horizontal plane. The crankshaft is then pressed by the clamping cylinder 322.

[0057] In some embodiments, the limiting seat 321 and the clamping cylinder 322 have multiple contact points with the workpiece 02 to be processed.

[0058] In this embodiment, as shown in the figure, the limiting seat 321 and the clamping cylinder 322 are selectively configured as two sets. It should be noted that the figure is only a schematic diagram of a specific embodiment and should not be limited to the structure defined in the figure. Therefore, the structure shown in the figure is only a specific structure for the purpose of explanation. Other structures that are different from the figure should also fall within the scope of this embodiment without creative changes.

[0059] In addition, the limit seat 321 adopts a V-shaped design, and the V-shaped limit seat 321 supports the connecting rod diameter of the workpiece 02 to be processed.

[0060] In some embodiments, the crankshaft oil passage sealing CNC equipment further includes an adjustment device 5, and a riveting device 4 is installed on the adjustment device 5. The adjustment device 5 is used to adjust the spatial position of the riveting device 4.

[0061] In this embodiment, the crankshaft oil circuit blocking CNC equipment is additionally equipped with an adjustment device 5 to adjust the spatial position of the riveting device 4, so that the adjustment device 5 has the ability to adjust the spatial position to meet the processing requirements of different types of workpieces 02.

[0062] It should be noted that the adjustment device 5 has various structural forms, including but not limited to movement mechanisms in various directions. As long as it can realize the adjustment of the spatial position of the riveting device 4, it should also fall within the scope of this embodiment.

[0063] For example, the adjustment device 5 includes a cross slide.

[0064] In this embodiment, the cross slide refers to a combined slide consisting of two sets of linear slides arranged along the X-axis and Y-axis directions, commonly referred to as a coordinate axis slide or XY-axis slide. In this case, the riveting device 4 can be adjusted in position within the plane under the action of the adjusting device 5. Furthermore, the rotation axis of the rotary table 31 is perpendicular to the motion plane of the cross slide, meaning the motion plane of the cross slide is parallel to the motion plane of the rotary table 31. During use, the cross slide is driven by a servo motor, enabling the riveting device 4 to move in a horizontal cross direction, which can satisfy the pressing of steel balls (sealing parts 01) at different positions (e.g., ...). Figures 1 to 3 The crankshaft oil hole positions shown are generally adaptable and have good adjustability.

[0065] Please refer to Figure 14 and Figure 15 , Figure 14 This is a front view of the supply device provided in an embodiment of this application. Figure 15 A top view of the supply device provided in an embodiment of this application.

[0066] In some embodiments, the crankshaft oil passage plugging CNC equipment further includes a supply device 6, which is installed together with the riveting device 4 on the adjusting device 5. The supply device 6 stores a plugging component 01 and is used to supply the riveting device 4 with the plugging component 01 that is riveted into the workpiece 02 to be processed.

[0067] In this embodiment, the crankshaft oil circuit plugging CNC equipment utilizes a CNC system to compile different processing programs for different parts' process requirements. During processing, the corresponding program is called, and the crankshaft (part to be processed 02) is installed in one go. The equipment automatically presses and rivets the steel balls (plugging parts 01) that need to be pressed onto the crankshaft into place.

[0068] In some embodiments, the supply device 6 includes a mounting base 61, a storage bin 62 and a pressure rod 63 mounted on the mounting base 61. The pressure rod 63, under the action of the riveting device 4, rivets the sealing member 01 that slides out of the storage bin 62 into the workpiece 02 to be processed.

[0069] In this embodiment, the supply device 6 uses the storage bin 62 to store steel balls (sealing parts 01), which can realize the batch storage of steel balls; the pressure rod 63 is used to press and rivet the sealing parts 01 on the workpiece 02 to be processed.

[0070] Specifically, the mounting base 61 has slides in two directions, with the second slide connecting to the middle of the first slide. In the first slide, the pressure rod 63 can extend into the mounting base 61 and push out the sealing member 01 inside the mounting base 61. In the second slide, the sealing member 01 in the storage bin 62 can fall into the first slide. In use, the sealing member 01 in the storage bin 62 falls into the mounting base 61, and the pressure rod 63, under the action of the riveting device 4, pushes out the sealing member 01 from the mounting base 61 and then rivets it into the workpiece 02 to be processed.

[0071] In some embodiments, the pressure rod 63 can slide relative to the mounting base 61 and a return spring 64 is provided between the pressure rod 63 and the mounting base 61.

[0072] In this embodiment, the pressure rod 63 slides along the slide rail in the first direction within the mounting base 61. A return spring 64 is fitted onto the portion of the pressure rod 63 outside this slide rail, with both ends of the return spring 64 abutting against the pressure rod 63 and the mounting base 61. During use, after the pressure rod 63 presses against the sealing member 01, the pressure rod 63 is reset by the action of the return spring 64.

[0073] Please refer to Figures 16 to 18 ,in Figure 16 This is a first schematic diagram of the supply device for pressing and riveting steel balls provided in an embodiment of this application. Figure 17 This is a second schematic diagram of the supply device for pressing the steel balls provided in an embodiment of this application. Figure 18 This is a third schematic diagram of the supply device for pressing the steel ball according to an embodiment of this application.

[0074] As shown in the figure, the feeding device 6 is used for automatic feeding of steel balls (sealing parts 01). In use, the steel balls are placed in the storage bin 62 and slide into the mounting base 61 under the action of gravity. The servo electric cylinder pushes the pressure rod 63 forward, pushing the steel balls away from the mounting base 61 and into the oil hole of the crankshaft (workpiece 02 to be processed). The pressure rod 63 continues to move forward and rivets the steel balls. After the servo electric cylinder retracts, the pressure rod 63 retracts under the action of the return spring 64, and the steel balls in the storage bin 62 are automatically fed in under the action of gravity, waiting for the next feeding and riveting.

[0075] For example, the transfer device 2 includes a gantry robot.

[0076] In this embodiment, a gantry robot (Cartesian robot) refers to a multi-purpose manipulator that is automatically controlled, reprogrammable, has multiple degrees of freedom, and whose motion degrees of freedom are arranged in a spatial Cartesian relationship. Its working behavior is mainly achieved by completing linear movements along the X, Y, and Z axes. In this case, the equipment uses a gantry robot to automatically load and unload the crankshaft (workpiece 02), which can realize one person operating multiple machines.

[0077] For example, the riveting device 4 includes a servo electric cylinder.

[0078] In this embodiment, the riveting device 4 adopts a horizontal pressing method and utilizes servo control. The servo electric cylinder serves as the power output component, and its movement is used to press and rivet steel balls (sealing parts 01) onto the workpiece 02. The output force can be set according to requirements. The servo electric cylinder is mounted on a cross slide, and the pressing head is installed at the actuating end (front end) of the servo electric cylinder. During operation, the cross slide drives the servo electric cylinder and the supply device 6 to the riveting position. The piston rod of the servo electric cylinder extends, pressing against the pressing rod 63 of the supply device 6 to move forward, thus feeding and riveting the steel balls.

[0079] In summary, the crankshaft oil passage plugging CNC equipment includes a loading bin 11, a unloading bin 12, a transfer device 2, a bearing device 3, a riveting device 4, an adjusting device 5, and a supply device 6. The transfer device 2, the bearing device 3, and the adjusting device 5 are mounted on the machine tool 7, while the riveting device 4 and the supply device 6 are mounted on the adjusting device 5. The overall structure of the crankshaft oil passage plugging CNC equipment adopts a horizontal press-fitting method, which can achieve automation. Different processing programs are compiled for different part process requirements. During processing, the corresponding program is called, and the crankshaft (part to be processed 02) is installed once. The equipment automatically presses and rivets the steel balls (plugging parts 01) that need to be pressed on the crankshaft into place. In particular, the crankshaft oil passage plugging CNC equipment can meet the crankshaft oil passage plugging press-fitting requirements in multi-variety, small-batch production.

[0080] In some embodiments, a pressure sensor is installed on the actuating end of the servo cylinder.

[0081] In this embodiment, each working press rod 63 pushes out a steel ball (sealing component 01) for pressing. The structure is simple and applicable, with a low failure rate. At the same time, a sensor is installed at the pressing position to detect whether the steel ball is delivered in place, avoiding missed installation or pressure, and replacing manual inspection.

[0082] In addition, the pressure sensor can also be used to collect and record the pressure information of each sealing component 01 on the workpiece 02, and can further plot the pressure-displacement curve of the steel ball (sealing component 01). Specifically, through the pressure sensor installed at the front end of the servo electric cylinder, the pressure information of each steel ball on each crankshaft (workpiece 02) during riveting can be collected and recorded, and then combined with the displacement information to form a pressure-displacement curve, making a clear record of the crankshaft pressing data. The data is stored in the memory, which facilitates the retrieval of steel ball data for each crankshaft and determines whether the steel balls are pressed tightly. Compared with the pressure value obtained by the hydraulic method, the curve is more accurate.

[0083] like Figures 11 to 13 As shown, when adjusting the crankshaft (workpiece 02), the crankshaft is mounted on the mounting base 61, and the rotary table 31 rotates at an angle controlled by a servo motor to ensure that the different oil holes on the crankshaft, the pressure rod 63, and the main axis of the servo electric cylinder are all in the same plane. Figure 11 This is the original state for loading and unloading materials. Figure 12 The working state of the first steel ball (sealing part 01) being pressed and riveted. Figure 13 This is the working state for pressing and riveting the second steel ball.

[0084] In a specific working description of this crankshaft oil circuit sealing CNC equipment:

[0085] A certain amount of steel balls (sealing parts 01) are manually placed into the storage bin 62 of the supply device 6. The crankshaft to be riveted (workpiece 02) is placed on the loading bin 11. The gantry robot grabs the crankshaft to be riveted and automatically loads it onto the machine tool 7. The part (crankshaft, workpiece 02) is placed on the limit seat 321 on the rotary table 31 (the crankshaft after riveting is first removed). The clamping cylinder 322 clamps the crankshaft. The program controls the rotary table 31 to drive the crankshaft to rotate to the first working state. Figure 12 (As shown) → The servo electric cylinder moves forward with the cross slide to the pressing position, and the cylinder piston rod extends → Pushing the pressure rod 63 to send the steel ball along the slide to the first oil hole of the crankshaft for pressing and riveting, completing the first steel ball riveting → The cylinder piston rod retracts → The pressure rod 63 retracts under the action of the return spring 64, and the steel ball falls into the material channel under the action of gravity, waiting for the next pressing → The cross slide drives the electric cylinder to retract and reach the position → The rotary table 31 drives the limit seat 321 to rotate a certain angle to the second working state ( Figure 13 (As shown) → The electric cylinder moves forward with the cross slide to the pressing position, and the electric cylinder piston rod extends → Pushing the pressure rod 63 to send the steel ball along the slide to the second oil hole of the crankshaft for pressing and riveting, completing the second steel ball riveting → The electric cylinder piston rod retracts → The pressure rod 63 retracts under the action of the return spring 64, and the steel ball falls into the material channel under the action of gravity, waiting for the next pressing → The cross slide drives the electric cylinder to retract and enter the position → The rotary table 31 drives the fixture to rotate a certain angle to the original state ( Figure 11(As shown) → Riveting ends, electric cylinder retracts, supply device 6 completes steel ball loading → cross slide drives electric cylinder and supply device 6 to retract → rotary table 31 returns to the original loading and unloading state, clamping cylinder 322 releases → gantry robot unloading claw removes part, loading claw installs part to be pressed into place → gantry robot puts the riveted crankshaft into unloading bin 12 → cycle works.

[0086] In summary, this crankshaft oil circuit plugging CNC equipment combines a CNC system, servo electric cylinder, rotary table 31, supply device 6, and gantry robot to form a CNC riveting machine tool specifically designed for plugging the crankshaft (workpiece 02) oil circuit steel ball (plugging part 01). It achieves CNC automation and safety in crankshaft oil circuit plugging and riveting, with more obvious advantages in mass production. It can realize one person operating multiple machines and automatic loading and unloading, thus improving production efficiency.

[0087] It should be noted that many of the components mentioned in this application are general standard parts or components known to those skilled in the art, and their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0088] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0089] The crankshaft oil circuit plugging CNC equipment provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A crankshaft oil passage plugging numerical control apparatus characterized by comprising: The device comprises: an upper hopper (11) and a lower hopper (12) for storing workpieces (02); a transfer device (2) for transferring workpieces (02); a bearing device (3) comprising a rotary table (31) and a clamping assembly (32) mounted on the rotary table (31), the clamping assembly (32) being used for fixing workpieces (02), and the rotary table (31) being used for adjusting the angular position of workpieces (02); a riveting device (4) for riveting a sealing piece (01) into a workpiece (02); further comprising an adjusting device (5), the riveting device (4) being mounted on the adjusting device (5), and the adjusting device (5) being used for adjusting the spatial position of the riveting device (4); the adjusting device (5) comprises a cross slide, the movement plane of the cross slide is parallel to the movement plane of the rotary table (31), and the rotary axis of the rotary table (31) is perpendicular to the movement plane of the cross slide; further comprising a supply device (6), the supply device (6) stores sealing pieces (01) and is used for supplying sealing pieces (01) riveted into workpieces (02) to the riveting device (4); the supply device (6) comprises a mounting seat (61), a storage hopper (62) and a pressing rod (63) mounted on the mounting seat (61), the pressing rod (63) is acted on by the riveting device (4) to press the sealing piece (01) slid out of the storage hopper (62) into the workpiece (02); the pressing rod (63) can slide relative to the mounting seat (61), and a return spring (64) is arranged between the pressing rod (63) and the mounting seat (61), the pressing rod (63) is reset after pressing the sealing piece (01) into the workpiece (02) under the action of the return spring (64); the clamping assembly (32) comprises a limiting seat (321) and a clamping cylinder (322) located beside the limiting seat (321), the limiting seat (321) is used for positioning workpieces (02), and the clamping cylinder (322) is used for fixing workpieces (02); the limiting seat (321) is used for making the plane where the oil hole of the workpiece (02) is located parallel to the horizontal plane; the riveting device (4) comprises a servo cylinder and a pressure head connected to the action end of the servo cylinder; the action end of the servo cylinder is provided with a pressure sensor, and the pressure sensor is used for collecting and recording the pressure information of each sealing piece (01) on the workpiece (02); the contact positions of the limiting seat (321) and the clamping cylinder (322) with the workpiece (02) are multiple, and the limiting seat (321) adopts a V-shaped design; the device is configured to rotate the rotary table (31) to adjust the oil hole angle of the workpiece (02), translate the cross slide to adjust the horizontal position of the riveting device (4), and make the pressure head axis of the riveting device (4) collinear with the axis of the oil hole before performing riveting.

Citation Information

Patent Citations

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