Automatic machining device for metal castings

Abstract

The invention relates to the technical field of metal pipe fitting drilling, and particularly discloses an automatic metal casting machining device which comprises a fixing structure, a bending device and a limiting device, and the fixing structure can fix a small-caliber thin-wall casting pipe fitting; the bending device is arranged at the rear end of the fixing structure and can be matched with the fixing structure to bend the small-caliber thin-wall casting pipe fitting. The limiting device is arranged at the front end of the top face in the fixing structure, the limiting device and the fixing structure are located on the same vertical center line, the limiting device can be matched with the bending device to limit and fix the bent small-caliber thin-wall casting pipe fitting, and therefore a stable machining reference is provided for subsequent drilling machining. By means of the pipe fitting bending device and method, the pipe fitting can be bent without bulging deformation, the cross section is free of distortion, the bending precision, quality, stability and flexibility are improved, and a high-quality and high-precision drilling machining foundation is provided for follow-up pipe fitting machining and drilling.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metal pipe drilling, in particular to an automatic metal casting machining device. BACKGROUND

[0002] Bending and drilling of small-diameter thin-wall metal cast pipe fittings are core machining processes, which are widely used in high-end equipment fields. With the increasing demand for precision of parts in downstream industries, the technical bottlenecks of traditional machining devices are increasingly prominent. 1. Most existing bending devices are point contact structures, which may cause pipe bulging and cross-section distortion due to uneven force transmission. The linear driving trajectory is not suitable for bending requirements, making it difficult to accurately control the angle and causing residual stress. Some devices lack reliable self-locking mechanisms, which may cause displacement during bending and reduce machining precision. 2. In the connection between bending and drilling, existing devices lack pre-pressing structures for bulging risk areas, and only rely on single clamps for positioning after bending, which is difficult to form stable positioning and may cause secondary drilling errors due to reference deviation. The self-locking performance of the brake motor of some devices is insufficient, which further affects the precision. 3. Traditional decentralized layout requires pipe transfer across equipment, increasing time cost and positioning error. Unreasonable space design causes drilling blind spots, which requires additional hole filling processes and low production efficiency. In summary, existing devices have deficiencies in bending precision, deformation suppression, and process connection, and an integrated, high-precision automatic machining device is needed to solve these problems. SUMMARY

[0003] The present application aims to provide an automatic metal casting machining device to solve the problems mentioned in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solution: an automatic metal casting machining device, characterized by comprising: a fixed structure, a bending device, and a limiting device. The fixed structure can fix small-diameter thin-wall cast pipe fittings. The bending device is arranged at the rear end of the fixed structure and can cooperate with the fixed structure to bend small-diameter thin-wall cast pipe fittings. The limiting device is arranged at the front end of the top surface of the fixed structure and has the same vertical center line as the fixed structure. The limiting device can cooperate with the bending device to limit and fix the bent small-diameter thin-wall cast pipe fittings, thereby providing a stable machining reference for subsequent drilling.

[0005] Preferably, in order to clamp and fix any size pipe fitting inside a small-diameter thin-walled cast pipe fitting, the fixing structure includes: a first support plate, support rods, a second support plate, a first electric push rod, and a telescopic clamp. The first support plate is used to support the top surface connecting component; there are three support rods, which are arranged in a triangular shape on the top surface of the first support plate; the second support plate is disposed at the top of the three support rods, and the second support plate and the first support plate are symmetrical to each other; the first electric push rod is disposed near the center of the front end of the top surface of the first support plate; the telescopic clamp is disposed at the pushing end of the first electric push rod.

[0006] Preferably, for bending small-diameter thin-walled cast pipe fittings, the bending device includes: a supporting round rod, a first rectangular block, a first chamber, a first moving groove, a semi-circular groove, a mandrel, a first driving assembly, and a bending assembly. The supporting round rod is disposed at the center of the rear end of the top surface of the first support plate; the first rectangular block is disposed at the pushing end of the supporting round rod, and a first chamber is formed inside the first rectangular block. A through first moving groove is formed at the center of the rear ends of both the upper and lower surfaces of the first rectangular block, and both first moving grooves extend into the first chamber. A through semi-circular groove is formed on the right side of the outer wall of the first rectangular block, and the semi-circular groove extends into the first chamber; the mandrel is disposed at the center of the right side of the outer wall of the first rectangular block; the first driving assembly is disposed at the rear end of the bottom surface of the second support plate, and the first driving assembly extends downward and is embedded in the two first moving grooves, and the output end of the first driving assembly is disposed between the centers of the first chamber; the bending assembly is disposed at the output end of the first driving assembly, and the output end of the bending assembly extends to the right through the semi-circular groove, and the output end of the bending assembly can be limited to move along the inner wall of the semi-circular groove.

[0007] Preferably, for driving the bending assembly, the first driving assembly includes: a second electric push rod, a first rack, a limiting post, and a hollow gear. The second electric push rod is disposed at the rear end of the bottom surface of the second support plate; the first rack is disposed at the pushing end of the second electric push rod, the first rack is embedded in two first moving slots, and the hollow gear can be limited to move within the two first moving slots; the limiting post is disposed between the centers of the inner walls of the first chamber; the hollow gear is sleeved on the left end of the limiting post, the hollow gear can be limited to rotate on the outer wall of the limiting post, and the hollow gear meshes with the first rack; the second electric push rod can push the first rack, causing the first rack to drive the hollow gear to be limited to rotate on the outer wall of the limiting post.

[0008] Preferably, to enable the bending rod to bend small-diameter thin-walled cast pipe fittings, the bending assembly includes: an annular block, a connecting block, a circular block, and a bending rod. The annular block is sleeved on the right end of the limiting post via a first bearing. The left side of the outer wall of the annular block is fixedly connected to the right side of the outer wall of the hollow gear. The connecting block is disposed on the outer wall of the annular block. The circular block is disposed at the top right side of the outer wall of the connecting block, and is embedded in a semi-circular groove, and can be limited to move along the inner wall of the semi-circular groove. The bending rod is disposed at the right end of the circular block. The rotation of the hollow gear can drive the annular block to rotate, thereby causing the annular block to drive the connecting block to rotate and move the bending rod through the circular block.

[0009] Preferably, in order to pre-press and limit the deformation of small-diameter thin-walled cast pipe fittings caused by bending, the limiting device includes: a third electric push rod, a second rectangular block, a second chamber, a second moving groove, a second drive assembly, a connecting rod, and an arc-shaped limiting block. The third electric push rod is disposed at the front end of the bottom of the second support plate, and the third electric push rod and the telescopic clamp are on the same vertical center line. The second rectangular block is disposed at the pushing end of the third electric push rod, and a second chamber is formed inside the second rectangular block. A through second moving groove is formed at the bottom corner of the left end of both the front and rear sides of the outer wall of the second rectangular block, and both second moving grooves extend into the second chamber. The second drive assembly is disposed on the top surface of the inner wall of the second rectangular block, and the output end of the second drive assembly is embedded in the two second moving grooves, and the output end of the second drive assembly extends to the rear end. The connecting rod is disposed at the bottom of the extension end of the output end of the second drive assembly. The arc-shaped limiting block is disposed at the bottom end of the connecting rod, and the arc-shaped limiting block and the telescopic clamp are on the same vertical center line.

[0010] Preferably, in order to drive the arc-shaped limiting block to prevent the pipe from bending and causing bulging deformation, and to perform pre-pressure limiting and fixing, the second driving component includes: a flat brake motor, a gear, and a second rack. The flat brake motor is located at the center of the right end of the top surface of the inner wall of the second chamber; the gear is located at the output end of the flat brake motor, and the bottom surface of the gear is a certain distance from the bottom surface of the inner wall of the second chamber; one end of the second rack is embedded in two second moving slots, and the left side of the outer wall of the second rack contacts the left side of the inner wall of the second chamber. The second rack can be limited to move within the two second moving slots. The second moving slots extend to the rear end, and the bottom of the extended end of the second rack is connected and fixed to the top end of the connecting rod. The second rack and the gear mesh with each other; the flat brake motor can drive the gear to rotate, thereby driving the gear to drive the connecting rod to limit the movement of the arc-shaped limiting block.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. The bending assembly uses a curved, drum-shaped bending rod and mandrel that precisely match the contours of the pipe's outer wall arc, forming surface contact rather than point contact during bending. This ensures uniform force transmission and prevents bulging deformation caused by localized compression. The first drive assembly drives the first rack to mesh with the hollow gear via a second electric push rod, causing the bending rod to move in an arc along the semi-circular groove. This motion trajectory, highly compatible with the bending requirements of the pipe, creates a buffering effect that precisely controls the bending angle, reduces stress concentration, and ensures no distortion of the pipe's inner wall cross-section. The self-locking characteristics of the second electric push rod and the hollow gear ensure the bending rod remains stable during bending, preventing loosening or displacement due to external forces, providing continuous assurance for high-precision bending.

[0012] 2. Before bending, the third electric push rod drives the arc-shaped limiting block to move downwards, cooperating with the second drive component to precisely position the arc-shaped limiting block to the risk area of ​​bulging during pipe bending, achieving pre-compression fixation and suppressing bulging deformation from the source. After bending, the telescopic clamp, mandrel, arc-shaped limiting block, and bending rod form a four-end absolute limit, firmly fixing the bent pipe. The limiting device and the fixed structure are designed to be collinear, ensuring that the limiting reference and the fixed reference are consistent, providing a stable and unified reference surface for subsequent drilling, significantly improving drilling accuracy. At the same time, the self-locking capability of the flat brake motor ensures the stability of the pre-compression and fixation of the arc-shaped limiting block, avoiding secondary errors caused by pipe displacement during processing.

[0013] 3. This invention integrates the three core processes of pipe fixing, bending, and limiting into a single device through component integration design, reducing the transfer time and positioning error of pipes between different devices and significantly improving production efficiency. In terms of spatial layout, the triangularly distributed support rods provide ample operating space for the external drilling equipment on the right side, and in conjunction with the robotic arm's flipping operation of the pipes, it can achieve drilling without dead angles after bending, solving the problem of drilling blind spots caused by clamping obstruction in traditional devices. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the fixing structure of the present invention; Figure 3 This is a schematic diagram showing the position and structure of the bending device of the present invention; Figure 4 This is a schematic cross-sectional view of the first rectangular block inside the bending device of the present invention; Figure 5 This is a schematic diagram of the first rectangular structure within the bending device of the present invention; Figure 6 This is a schematic diagram of the internal structure of the first rectangular block within the bending device of the present invention. Figure 7This is a schematic diagram showing the disassembled structure of the first driving component and the bending component of the present invention; Figure 8 This is a schematic diagram of the positional structure of the limiting device of the present invention; Figure 9 for Figure 8 Enlarged view of point A in the image; Figure 10 This is a schematic cross-sectional view of the second rectangular block within the limiting device of the present invention; Figure 11 This is a schematic diagram of the structure of the second driving component within the cross-section of the second rectangular block of the present invention.

[0015] In the diagram: 1. Fixed structure; 11. First support plate; 12. Support rod; 13. Second support plate; 14. First electric push rod; 15. Telescopic clamp; 2. Bending device; 21. Supporting round rod; 22. First rectangular block; 23. First chamber; 24. First moving groove; 25. Semicircular groove; 26. Mandrel; 27. First drive assembly; 271. Second electric push rod; 272. First rack; 273. Limiting post; 274. Hollow gear; 28. Bending assembly; 281. Ring block; 282. Connecting block; 283. Round block; 284. Bending rod; 3. Limiting device; 31. Third electric push rod; 32. Second rectangular block; 33. Second chamber; 34. Second moving groove; 35. Second drive assembly; 351. Flat brake motor; 352. Gear; 353. Second rack; 36. Connecting rod; 37. Arc-shaped limiting block. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-11This invention provides a technical solution for an automated metal casting processing device, comprising: a fixing structure 1, a bending device 2, and a limiting device 3. The fixing structure 1 can fix small-diameter thin-walled cast pipe fittings, and also provides support for the bending device 2 and the limiting device 3, providing installation points for them and ensuring their stable operation. The fixing structure 1 can fix pipe fittings of any size within the small-diameter thin-walled cast pipe fitting, exhibiting a certain degree of versatility. The bending device 2 is located at the rear end of the fixing structure 1, and can cooperate with the fixing structure 1 to bend the small-diameter thin-walled cast pipe fittings. During the bending process, the bending device 2 can... It has a certain buffering effect, thereby improving the bending accuracy and quality of small-diameter thin-walled cast pipe fittings; the limiting device 3 is set at the top front end of the fixed structure 1, and the limiting device 3 and the fixed structure 1 are on the same vertical center line. The limiting device 3 can cooperate with the bending device 2 to limit and fix the small-diameter thin-walled cast pipe fitting after bending, thereby providing a stable processing benchmark for subsequent drilling. The cooperation between the limiting device 3 and the bending device 2 can not only play a pre-pressure protection role for the bulging deformation at the bending point of the small-diameter thin-walled cast pipe fitting during the bending process, but also limit and fix the small-diameter thin-walled cast pipe fitting after bending, and provide a high-quality and high-precision processing foundation for subsequent drilling.

[0018] As a preferred option, further, such as Figure 2 As shown, the fixed structure 1 includes: a first support plate 11, support rods 12, a second support plate 13, a first electric push rod 14, and a telescopic clamp 15. The first support plate 11 supports the top surface connecting component, providing an installation point and stable support for the top surface connecting component, and is a crucial foundational support component for the entire device. There are three support rods 12, each arranged in a triangular pattern on the top surface of the first support plate 11. These three support rods 12 provide stable support for the second support plate 13, and their triangular arrangement ensures stable support for the second support plate 13. The distribution of the three support rods 12 provides operating space for the external drilling equipment on the right side of the present invention; the second support plate 13 is disposed at the top of the three support rods 12, and the second support plate 13 and the first support plate 11 are symmetrical to each other. The second support plate 13 provides an installation point and a stable operating foundation for the bottom connecting parts; the first electric push rod 14 is disposed near the center of the front end of the top of the first support plate 11. The first electric push rod 14 can drive the telescopic clamp 15 to move up and down in a limited manner; the telescopic clamp 15 is disposed at the pushing end of the first electric push rod 14. The telescopic clamp 15 is used to clamp and fix small-diameter thin-walled cast pipes.

[0019] As a preferred option, further, such as Figure 3 ,Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the bending device 2 includes: a supporting round rod 21, a first rectangular block 22, a first chamber 23, a first moving groove 24, a semi-circular groove 25, a mandrel 26, a first driving assembly 27, and a bending assembly 28. The supporting round rod 21 is located at the center of the rear end of the top surface of the first support plate 11. The supporting round rod 21 supports the first rectangular block 22, and its length also provides bending space for subsequent small-diameter thin-walled cast pipe fittings during bending. The first rectangular block 22 is located at the pushing end of the supporting round rod 21. The first chamber 23 is formed inside the first rectangular block 22. The first chamber 23 provides installation and operating space for the first driving assembly 27. The center of the rear ends of both the upper and lower surfaces of the first rectangular block 22 is provided with a through first moving groove 24, and both first moving grooves 24 extend into the first chamber 23. A semi-circular groove 25 is provided on the right side of the outer wall of the first rectangular block 22, and the semi-circular groove 25 extends into the first chamber 23; a mandrel 26 is disposed at the center of the right side of the outer wall of the first rectangular block 22, and the mandrel 26 is used to bend the internal components of the small-diameter thin-walled cast pipe; a first driving assembly 27 is disposed at the rear end of the bottom surface of the second support plate 13, and the first driving assembly 27 extends downward and is embedded in the two first moving grooves 24, and the output end of the first driving assembly 27 is disposed between the centers in the first chamber 23. The first driving assembly 27 and the driving bending assembly 28 cooperate with each other to bend the small-diameter thin-walled cast pipe; the bending assembly 28 is disposed at the output end of the first driving assembly 27, and the output end of the bending assembly 28 extends to the right end through the semi-circular groove 25. The output end of the bending assembly 28 can be limited to move along the inner wall of the semi-circular groove 25.

[0020] As a preferred option, further, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the first drive assembly 27 includes: a second electric push rod 271, a first rack 272, a limiting post 273, and a hollow gear 274. The second electric push rod 271 is disposed at the rear end of the bottom surface of the second support plate 13. The second electric push rod 271 is used to drive the first rack 272 to move up and down in a limited manner. The second electric push rod 271 has a self-locking capability and is capable of high thrust output. The first rack 272 is disposed at the pushing end of the second electric push rod 271 and is embedded in two first moving slots 24. The hollow gear 274 can move in a limited manner within the two first moving slots 24. The limiting post 273 is disposed between the centers of the inner walls of the first chamber 23. It also serves to support the hollow gear 274; the hollow gear 274 is sleeved on the left end of the limiting post 273, and the hollow gear 274 can be limited to rotate on the outer wall of the limiting post 273. The hollow gear 274 meshes with the first rack 272; the second electric push rod 271 can push the first rack 272, so that the first rack 272 drives the hollow gear 274 to be limited to rotate on the outer wall of the limiting post 273. This first drive assembly 27 is used to provide a power source for the bending assembly 28, and the first drive assembly 27 has a self-locking capability, which enables the bending assembly 28 to remain stationary and prevent the output end from loosening or displacing due to external force, thus providing a high-quality and high-precision operating foundation for the bending assembly 28.

[0021] As a preferred option, further, such as Figure 5 , Figure 6 and Figure 7As shown, the bending assembly 28 includes: an annular block 281, a connecting block 282, a circular block 283, and a bending rod 284. The annular block 281 is sleeved on the right end of the limiting post 273 via a first bearing. The left side of the outer wall of the annular block 281 is fixedly connected to the right side of the outer wall of the hollow gear 274, and the hollow gear 274 is limited to rotation via the annular block 281 and the first bearing. The connecting block 282 is disposed on the outer wall of the annular block 281 and is used to extend the movement path of the circular block 283 and the bending rod 284. The circular block 283 is disposed at the top right side of the outer wall of the connecting block 282. The circular block 283 is embedded in the semi-circular groove 25 and can be limited to move along the inner wall of the semi-circular groove 25. The circular block 283 is used for connection and transmission between the connecting block 282 and the bending rod 284. The bending rod 284 is disposed at the right end of the circular block 283. The mandrel 26 is the main component for bending small-diameter thin-walled cast pipe fittings. The bending rod 284 and the mandrel 26 adopt an arc-shaped waist drum structure, with wide support sections at both ends and a narrowing transition section in the middle. The overall outline is adapted to the arc shape of the outer wall of the small-diameter thin-walled cast pipe fitting. During the bending operation, this arc-shaped structure can form surface contact with the pipe fitting surface, realizing the uniform transmission of bending force and avoiding bulging or deformation of the pipe fitting caused by local compression. The rotation of the hollow gear 274 can drive the ring block 281 to rotate, thereby causing the ring block 281 to drive the connecting block 282 to drive the bending rod 284 to rotate and move in a limited position through the round block 283. This bending assembly 28 can play a buffering role for the small-diameter thin-walled cast pipe fitting during the bending process, effectively controlling the bending angle and deformation trend of the pipe fitting, while ensuring that the cross-section of the inner wall of the pipe fitting is free of distortion, and significantly improving the bending processing quality of the small-diameter thin-walled cast pipe fitting.

[0022] As a preferred option, further, such as Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, the limiting device 3 includes: a third electric push rod 31, a second rectangular block 32, a second chamber 33, a second moving groove 34, a second drive assembly 35, a connecting rod 36, and an arc-shaped limiting block 37. The third electric push rod 31 is located at the front end of the bottom of the second support plate 13. The third electric push rod 31 and the telescopic clamp 15 are on the same vertical center line. The third electric push rod 31 is used to drive the second rectangular block 32 to move up and down in a limited manner. The second rectangular block 32 is located at the pushing end of the third electric push rod 31. A second chamber 33 is opened inside the second rectangular block 32. The second chamber 33 is used to provide installation space and operating space for the second drive assembly 35. A through second moving groove 34 is opened at the bottom corner of the left end of both the front and rear sides of the outer wall of the second rectangular block 32, and both second moving grooves 34 extend into the second chamber 33. The moving component 35 is disposed on the top surface of the inner wall of the second rectangular block 32. The output end of the second driving component 35 is respectively embedded in the two second moving slots 34, and the output end of the second driving component 35 extends to the rear end. The connecting rod 36 is disposed at the bottom of the extension end of the output end of the second driving component 35. The connecting rod 36 is used for connection and transmission between the second driving component 35 and the arc-shaped limiting block 37, and the connecting rod 36 also provides a certain support for the arc-shaped limiting block 37. The arc-shaped limiting block 37 is disposed at the bottom end of the connecting rod 36. The arc-shaped limiting block 37 and the telescopic clamp 15 are on the same vertical center line. Its function is to ensure that the arc-shaped limiting block 37 contacts and is fixed to the center of the outer wall of the small-diameter thin-walled cast pipe held by the telescopic clamp 15, and the outline of the arc-shaped limiting block 37 fits the outline of the outer wall of the small-diameter thin-walled cast pipe.

[0023] As a preferred option, further, such as Figure 9 , Figure 10 and Figure 11As shown, the second drive assembly 35 includes: a flat brake motor 351, a gear 352, and a second rack 353. The flat brake motor 351 is located at the center of the right end of the top surface of the inner wall of the second chamber 33. The flat brake motor 351 is small in size, suitable for compact applications in this structure, and has a certain self-locking capability. The gear 352 is located at the output end of the flat brake motor 351, and the bottom surface of the gear 352 is a certain distance from the bottom surface of the inner wall of the second chamber 33. One end of the second rack 353 is embedded in two second moving slots 34, and the left side of the outer wall of the second rack 353 contacts the left side of the inner wall of the second chamber 33. The second rack 353 can... The device can move within two second moving slots 34, which extend to the rear end. The bottom of the extended end of the second rack 353 is connected and fixed to the top of the connecting rod 36. The second rack 353 meshes with the gear 352. The flat brake motor 351 can drive the gear 352 to rotate, thereby driving the gear 352 to drive the connecting rod 36 to move the arc-shaped limiting block 37. This second drive assembly 35 drives the arc-shaped limiting block 37 to achieve precise limiting movement. The self-locking characteristic of the flat brake motor 351 ensures the stability of the pre-pressed fixing of the arc-shaped limiting block 37, providing stable drive support for the anti-deformation fixing of small-diameter thin-walled cast pipes during bending.

[0024] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and the specific work is as follows: The small-diameter thin-walled cast pipe fittings are gripped by the robotic arm and placed into the clamping end of the telescopic clamp 15. The telescopic clamp 15 completes the loading and fixing of the small-diameter thin-walled cast pipe fittings. This structure has a certain degree of versatility and is suitable for pipe fittings of any size and model in the small-diameter thin-walled cast pipe fittings. The telescopic clamp 15 drives the bend of the small-diameter thin-walled cast pipe to the space between the mandrel 26 and the flat brake motor 351. Then, the first electric push rod 14 drives the small-diameter thin-walled cast pipe to move downward and contact the mandrel 26. The third electric push rod 31 drives the arc-shaped limiting block 37 downward. At the same time, the flat brake motor 351 drives the arc-shaped limiting block 37 to pre-press and fix the top of the small-diameter thin-walled cast pipe at the bulge caused by the bend. This prevents the top of the pipe from bulging due to the bending force, thereby improving the quality of the pipe bending and completing the pre-bending work of the small-diameter thin-walled cast pipe. Then, the hollow gear 274 is driven to rotate by the second electric push rod 271, causing the bending rod 284 to rotate and move to a limit position. The bending rod 284 and the mandrel 26 work together to bend the small-diameter thin-walled cast pipe. The bending method of this structure can adjust the bending angle of the small-diameter thin-walled cast pipe and has a certain degree of versatility and flexibility. At the same time, the bending rod 284 bends the small-diameter thin-walled cast pipe in a semi-circular bending motion. This semi-circular arc motion fits the pipe to achieve buffer protection during the bending process, accurately matches the bending trajectory of the pipe, effectively disperses the bending stress, avoids defects such as cross-sectional distortion caused by uneven local extrusion at the bending point, and ensures the quality and precision of the bent pipe. At this point, the bent small-diameter thin-walled cast pipe is fixed by the absolute limiting of the four ends of the telescopic clamp 15, mandrel 26, arc-shaped limiting block 37, and bending rod 284, providing a high-quality and high-precision processing foundation for the subsequent drilling of the small-diameter thin-walled cast pipe. The drilling equipment that can be adjusted at multiple angles can be placed on the right side of the invention for drilling. Since there is a drilling blind spot and obstruction on the left side of the bent small-diameter thin-walled cast pipe, the bent small-diameter thin-walled cast pipe can be flipped over by the robotic arm. Similarly, the telescopic clamp 15, mandrel 26, arc-shaped limiting block 37, and bending rod 284 are fixed with the same fixing force, and the multi-angle adjustable drilling equipment can drill the bent pipe without clamping dead angles through the invention.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated processing device for metal castings, characterized in that, include: The fixed structure (1) can fix small-diameter thin-walled cast pipe fittings; A bending device (2) is provided at the rear end of the fixed structure (1). The bending device (2) can cooperate with the fixed structure (1) to bend small-diameter thin-walled cast pipes. The limiting device (3) is set at the front end of the top face inside the fixed structure (1). The limiting device (3) and the fixed structure (1) are on the same vertical center line. The limiting device (3) can cooperate with the bending device (2) to limit and fix the bent small-diameter thin-walled cast pipe, thereby providing a stable processing reference for subsequent drilling.

2. The automated metal casting processing device according to claim 1, characterized in that: The fixing structure (1) includes: The first support plate (11) is used to support the top surface connecting component; There are three support rods (12), which are arranged in a triangular shape on the top surface of the first support plate (11); The second support plate (13) is disposed at the top of the three support rods (12), and the second support plate (13) and the first support plate (11) are symmetrical to each other; The first electric push rod (14) is located at the center of the front end of the top face near the first support plate (11); Telescopic clamp (15) is disposed at the pushing end of the first electric push rod (14).

3. The automated metal casting processing device according to claim 2, characterized in that: The bending device (2) includes: A support rod (21) is disposed at the center of the rear end of the top surface of the first support plate (11); The first rectangular block (22) is disposed at the pushing end of the supporting round rod (21). The first rectangular block (22) has a first chamber (23) inside. The center of the rear end of the upper and lower sides of the first rectangular block (22) is provided with a through first moving groove (24), and the two first moving grooves (24) are both connected to the first chamber (23). The right side of the outer wall of the first rectangular block (22) is provided with a through semi-circular groove (25), and the semi-circular groove (25) is connected to the first chamber (23). The core rod (26) is disposed at the center of the right side of the outer wall of the first rectangular block (22); The first drive assembly (27) is disposed at the rear end of the bottom surface of the second support plate (13), and the first drive assembly (27) extends downward and is embedded in the two first moving slots (24), and the output end of the first drive assembly (27) is disposed between the centers in the first chamber (23); A bending component (28) is disposed at the output end of the first driving component (27). The output end of the bending component (28) extends to the right through a semi-circular groove (25). The output end of the bending component (28) can be limited to move along the inner wall of the semi-circular groove (25).

4. The automated metal casting processing device according to claim 3, characterized in that: The first driving component (27) includes: The second electric push rod (271) is located at the rear end of the bottom surface of the second support plate (13); The first rack (272) is disposed at the pushing end of the second electric push rod (271). The first rack (272) is embedded in two first moving slots (24), and the hollow gear (274) can be limited to move within the two first moving slots (24). A limiting post (273) is disposed between the centers of the inner walls of the first chamber (23); A hollow gear (274) is sleeved on the left end of the limiting post (273). The hollow gear (274) can be limited to rotate on the outer wall of the limiting post (273). The hollow gear (274) meshes with the first rack (272).

5. The automated metal casting processing device according to claim 4, characterized in that, The second electric push rod (271) can push the first rack (272), so that the first rack (272) drives the hollow gear (274) to rotate in a limited position on the outer wall of the limiting post (273).

6. The automated metal casting processing device according to claim 5, characterized in that: The bending component (28) includes: The ring block (281) is sleeved on the right end of the limiting post (273) through the first bearing, and the left side of the outer wall of the ring block (281) is fixedly connected to the right side of the outer wall of the hollow gear (274); A connecting block (282) is disposed on the outer wall of the annular block (281); A circular block (283) is disposed on the top right side of the outer wall of the connecting block (282). The circular block (283) is embedded in the semi-circular groove (25) and can move along the inner wall of the semi-circular groove (25). A bending rod (284) is disposed at the right end of the circular block (283).

7. The automated metal casting processing device according to claim 6, characterized in that, The rotation of the hollow gear (274) can drive the ring block (281) to rotate, thereby causing the ring block (281) to drive the connecting block (282) to move in a limited rotational manner through the round block (283) and the bending rod (284).

8. The automated metal casting processing device according to claim 7, characterized in that: The limiting device (3) includes: The third electric push rod (31) is located at the front end of the bottom of the second support plate (13), and the third electric push rod (31) and the telescopic clamp (15) are on the same vertical center line; The second rectangular block (32) is located at the pushing end of the third electric push rod (31). The second rectangular block (32) has a second chamber (33) inside. The bottom corners of the left end of the front and rear sides of the outer wall of the second rectangular block (32) are provided with through second moving grooves (34), and the two second moving grooves (34) are both connected to the second chamber (33). The second drive component (35) is disposed on the top surface of the inner wall of the second rectangular block (32). The output end of the second drive component (35) is embedded in the two second moving slots (34) respectively, and the output end of the second drive component (35) extends to the rear end. A connecting rod (36) is located at the bottom of the extension end of the output end of the second drive assembly (35); An arc-shaped limiting block (37) is set at the bottom end of the connecting rod (36), and the arc-shaped limiting block (37) and the telescopic clamp (15) are on the same vertical center line.

9. The automated processing device for metal castings according to claim 8, characterized in that: The second driving component (35) includes: A flat brake motor (351) is located at the center of the right end of the top surface of the inner wall of the second chamber (33); Gear (352) is located at the output end of the flat brake motor (351), and the bottom surface of gear (352) is a certain distance from the bottom surface of the inner wall of the second chamber (33); The second rack (353) is embedded at one end in the two second moving slots (34), and the left side of the outer wall of the second rack (353) is in contact with the left side of the inner wall of the second chamber (33). The second rack (353) can be limited to move within the two second moving slots (34). The second moving slots (34) extend to the rear end, and the bottom of the extended end of the second rack (353) is connected and fixed to the top of the connecting rod (36). The second rack (353) meshes with the gear (352).

10. An automated metal casting processing device according to claim 9, characterized in that, The flat brake motor (351) can drive the gear (352) to rotate, thereby driving the gear (352) to drive the connecting rod (36) to limit the movement of the arc-shaped limiting block (37).

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