Runner structure for solid metal block and machining method

Abstract

The invention relates to the technical field of solid metal block runner structures, in particular to a solid metal block runner structure and a machining method. According to the technical scheme, the flow channel structure comprises a metal block and an outer surface flow channel assembly, a sealing cover plate is welded to an opening of the outer surface flow channel assembly, the flow channel structure further comprises an internal grid flow channel, the internal grid flow channel is composed of a crossed hole channel, parallel hole channels and a plurality of independent hole channels, the crossed hole channel and the parallel hole channels are communicated with each other, and the crossed hole channel is formed through oblique punching. The axis and the outer surface form a non-vertical angle, and the parallel hole channels are communicated with the crossed hole channels. According to the machining method, machining of the complex flow channel in the solid metal is achieved through cooperation of five modes of outer surface flow channel welding plate milling, edge single hole blocking, edge cross hole blocking, edge parallel hole blocking and branch blocking, cooling liquid can flow through all positions of the solid metal block according to a preset path, and the optimal cooling effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of solid metal block flow channel structure technology, and in particular to a flow channel structure for solid metal blocks and a processing method thereof. Background Technology

[0002] For cooling solid metal blocks, flow channels need to be designed to allow coolant to flow through all parts of the block for adequate cooling. Current technology involves cutting the block, machining the flow channels, and then welding them together. For the interior, which is not closest to the outer surface, cross-flow channels are created by drilling holes perpendicular to the solid metal block surface and then sealing the ends of the holes, ultimately forming a grid flow channel. Because the coolant flows through the grid flow channel with many parallel branches between nodes, the fluid automatically distributes flow based on the flow resistance of each branch. This results in most branches having very low flow rates, leading to poor heat dissipation. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the background art by proposing a flow channel structure and processing method for solid metal blocks.

[0004] On one hand, the present invention proposes a flow channel structure for a solid metal block, comprising a metal block, and further comprising: External surface flow channel assembly, with a sealing cover plate welded to the opening of the external surface flow channel assembly; The internal mesh flow channel is composed of interconnected intersecting channels, parallel channels, and multiple individual channels. The intersecting channels are formed by oblique drilling, and their axes are at a non-perpendicular angle to the outer surface. The parallel channels are connected to the intersecting channels. The edge sealing assembly includes a single-hole sealing plate, a combined sealing block, and parallel-hole cover plates, wherein: The single-hole sealing plate is welded to the opening end of the individual edge channel; The combined sealing block is installed at the intersection cavity of the intersecting channels located at the edge, covering all intersecting channels and welding them for sealing; The parallel hole cover plate covers the parallel holes by milling a connecting groove, forming a connecting cavity; A branch sealing pin is inserted into a hole in a non-preset branch and welded to the hole wall. The outer surface flow channel assembly, the internal mesh flow channel, and the edge sealing assembly are welded together to form a sealed directional coolant flow path.

[0005] Optionally, a sealing hole is provided on a non-preset branch of the internal mesh flow channel, the sealing hole interrupts the continuous channel, and the branch sealing pin is located inside the sealing hole.

[0006] Optionally, a sealing component is installed inside the branch sealing pin. The sealing component includes a support frame, a flexible sealing plate fixedly installed on the support frame, and an adjustment assembly that drives the support frame to retract. The sealing component withstands the water pressure inside the flow channel and enhances the pressure exerted by the flexible sealing plate on the sealing hole.

[0007] Optionally, the branch blocking pin includes a connecting shaft, the support frame includes a support body fixedly installed on the connecting shaft, a support frame is slidably installed in the support body, a partition ring is fixedly installed on the support frame, a base plate is fixedly installed on the partition ring, and the base plate is fixedly connected to the support frame through a connecting rod.

[0008] Optionally, the flexible sealing plate is fixedly connected to the support body and the support frame, and the flexible sealing plate is provided with a flow hole, which is fixedly connected to the separator ring.

[0009] Optionally, a flexible, cylindrical side sealing ring is fixedly installed between the separator ring and the base plate, and a sealed air cavity is formed between the support body, the flexible sealing plate, the base plate and the side sealing ring. The support body is provided with an air hole communicating with the air cavity and a one-way valve is fixedly installed thereon.

[0010] Optionally, the axis of the side sealing ring coincides with the axis of the flow channel, and the surface area of ​​the side sealing ring is larger than the cross-sectional area of ​​the flow channel.

[0011] Optionally, the adjustment assembly includes a drive shaft rotatably mounted inside the connecting shaft, a drive disk fixedly mounted on the drive shaft, a connecting rod fixedly mounted on the base plate, a connecting rod rotatably mounted on the connecting rod, the other end of the connecting rod being rotatably connected to the drive disk, a sliding sleeve slidably mounted on the drive shaft, a circumferential positioning between the sliding sleeve and the drive shaft, a threaded surface on the sliding sleeve, and a handle fixedly mounted on the sliding sleeve.

[0012] On the other hand, the present invention proposes a flow channel processing method for solid metal blocks, applied to the aforementioned solid metal block flow channel structure, the method comprising the following steps: Step 1: Mill the pre-set flow channels on the outer surface of the solid metal block, and weld a sealing cover plate at the opening of the flow channels to achieve a seal; Step 2: Drill holes obliquely from the outer surface side to form intersecting channels, parallel channels, and individual channels, forming an internal mesh flow channel; Step 3: Seal the single holes, intersecting holes, and parallel holes at the edges: Single-hole sealing: A single-hole sealing plate is welded to the open end of a single channel; Intersecting hole sealing: Mill a cavity at the intersection of the intersecting holes on the edge, install a combined sealing block and weld it to seal; Parallel hole plugging: Mill connecting grooves between parallel channels and install parallel hole cover plates to form a connecting cavity; Step 4: Block the branches in the grid flow channel that are not the preset path: Drill a hole from the back of the solid metal block to the target branch, insert the branch blocking pin and weld it to the hole wall; Step 5: By combining the above steps, a directional coolant flow path is formed inside the solid metal block.

[0013] Optionally, a pressure test can be performed on the mesh flow channel to ensure that the sealing meets the preset coolant flow rate requirements.

[0014] In summary, this application includes at least one of the following beneficial technical effects: This invention addresses the challenges of machining cooling channels at various locations by employing five methods: milling the channel welding plate on the outer surface, sealing single holes at the edges, sealing cross holes at the edges, sealing parallel holes at the edges, and sealing branch paths. This allows the coolant to flow through various locations of the solid metal block along a predetermined path, achieving optimal cooling performance. Attached Figure Description

[0015] Figure 1 A schematic diagram of the outer surface flow channel assembly is provided; Figure 2 This is a schematic diagram of the internal structure of the metal block; Figure 3 This is a schematic diagram of the grid flow channel structure; Figure 4 A schematic diagram showing the connection between the branch road sealing pin and the branch road; Figure 5 This is a schematic diagram of the sealing hole; Figure 6 A schematic diagram of the structure of a branch road sealing pin; Figure 7 This is a schematic diagram of the supporting frame structure; Figure 8 This is a schematic diagram of the adjustment component.

[0016] Reference numerals: 101, outer surface flow channel assembly; 102, sealing cover plate; 201, grid flow channel; 202, intersecting channel; 203, parallel channel; 204, individual channel; 301, single hole sealing plate; 302, combined sealing block; 303, parallel hole cover plate; 401, branch sealing pin; 402, connecting shaft; 403, support body; 404, flexible sealing plate; 405, support frame; 406, partition ring; 407, base plate; 408, connecting rod; 409, side sealing ring; 410, air chamber; 411, air hole; 412, drive shaft; 413, drive disc; 414, connecting rod; 415, connecting rod; 416, sliding sleeve; 417, thread; 418, handle; 419, flow hole; 501, sealing hole. Detailed Implementation

[0017] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] 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.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Example 1:

[0023] like Figures 1 to 3 As shown, the present invention proposes a flow channel structure for a solid metal block, including a metal block and an outer surface flow channel assembly 101. A sealing cover plate 102 is welded to the opening of the outer surface flow channel assembly 101 to achieve sealing of the outer surface flow channel assembly 101.

[0024] Furthermore, the flow channel structure of this embodiment also includes an internal grid flow channel 201, which is composed of interconnected intersecting channels 202 and parallel channels 203 as well as multiple individual channels 204. The intersecting channels 202 are formed by oblique drilling, and their axes are at a non-perpendicular angle to the outer surface. The parallel channels 203 are connected to the intersecting channels 202.

[0025] The outer surface flow channel assembly 101, the inner mesh flow channel 201, and the edge sealing assembly are welded together to form a sealed directional coolant flow path.

[0026] The edge sealing assembly includes a single-hole sealing plate 301, a combined sealing block 302, and a parallel-hole cover plate 303. The single-hole sealing plate 301 is welded to the opening end of the individual edge channel 204 to seal the opening of the individual channel 204. The combined sealing block 302 is installed at the intersection cavity of the intersecting channels 202 located at the edge, covering all intersecting channels 202 and sealing them by welding, so that the intersecting channels 202 can be connected. The parallel-hole cover plate 303 covers the parallel channels 203 by milling connecting grooves to form connecting cavities, so that the parallel channels 203 and the intersecting channels 202 can be connected.

[0027] Because some branches in the grid-like flow channel are not designed as through passages, but become through passages due to the intersecting perforations, it is necessary to block these branches. In this embodiment, the through passage is blocked by a branch blocking pin 401. The branch blocking pin 401 is inserted into the drill hole of the non-preset through passage branch and welded to the hole wall. The non-preset branches of the internal grid flow channel 201 are provided with blocking holes 501, which block the continuous channel. The branch blocking pin 401 is located inside the blocking hole 501.

[0028] On the other hand, the present invention proposes a flow channel processing method for solid metal blocks, applied to the above-mentioned solid metal block flow channel structure, the method comprising the following steps: Step 1: Mill the pre-set flow channel on the outer surface of the solid metal block, and weld the sealing cover plate 102 at the opening of the flow channel to achieve a seal; Step 2: Drill holes obliquely from the outer surface side to form intersecting channels 202, parallel channels 203, and individual channels 204, which constitute the internal mesh flow channel 201; Step 3: Seal the single holes, intersecting holes, and parallel holes at the edges: Single-hole plugging: Weld a single-hole sealing plate 301 to the open end of the single channel 204; Cross-hole sealing: Mill a cavity at the intersection of the edge cross-holes 202, install the combined sealing block 302 and weld it for sealing; Parallel hole plugging: Mill a connecting groove between parallel holes 203 and install parallel hole cover plates 303 to form a connecting cavity; Step 4: Block the branches in the grid flow channel 201 that are not the preset path: Drill a hole from the back of the solid metal block to the target branch, insert the branch blocking pin 401 and weld it to the hole wall; Step 5: By combining the above steps, a directional coolant flow path is formed inside the solid metal block.

[0029] Furthermore, a pressure test is performed on the mesh flow channel 201 to ensure that the sealing performance meets the preset coolant flow rate requirements.

[0030] Example 2:

[0031] like Figures 4 to 8 As shown, based on Embodiment 1, a sealing component is installed inside the branch blocking pin 401. The sealing component includes a support frame, a flexible sealing plate 404 fixedly installed on the support frame, and an adjustment component that drives the support frame to retract. The sealing component withstands the water pressure inside the flow channel and enhances the pressure exerted by the flexible sealing plate on the blocking hole 501. When blocking the branch with the branch blocking pin 401, it is first necessary to open the blocking hole 501 on the branch. Metal burrs are prone to appear at the connection between the blocking hole 501 and the branch blocking pin 401, and the drilling accuracy is required to be high. In order to ensure the sealing performance, a small gap needs to be maintained between the blocking hole 501 and the branch blocking pin 401, which is not conducive to installation.

[0032] Furthermore, the branch sealing pin 401 includes a connecting shaft 402, and the support frame includes a support body 403 fixedly installed on the connecting shaft 402. A support frame 405 is slidably installed inside the support body 403. A partition ring 406 is fixedly installed on the support frame 405, and a base plate 407 is fixedly installed on the partition ring 406. The base plate 407 is fixedly connected to the support frame 405 through a connecting rod 408. The branch is sealed by the flexible sealing piece 404. The support frame supports the flexible sealing piece 404 to prevent the flexible sealing piece 404 from concave under water pressure, thereby ensuring the stability of the seal. The position of the support frame can be adjusted by the adjustment component. During installation, the support frame can be contracted inward to increase the gap between the branch sealing pin 401 and the sealing hole 501, making it easier for the branch sealing pin 401 to enter the sealing hole 501, thereby reducing the difficulty of installation.

[0033] The flexible sealing plate 404 is fixedly connected to the support body 403 and the support frame 405. The flexible sealing plate 404 is provided with a flow hole 419, which is fixedly connected to the partition ring 406. Under the action of the support frame, the flexible sealing plate 404 can be pressed on the branch, and the deformation of the flexible sealing plate 404 can seal the tiny gap between the sealing hole 501 and the branch, thereby completing the sealing.

[0034] It is worth noting that a flexible, cylindrical side sealing ring 409 is fixedly installed between the separator ring 406 and the base plate 407. A sealed air cavity 410 is formed between the support body 403, the flexible sealing plate 404, the base plate 407, and the side sealing ring 409. The support body 403 is provided with an air hole 411 communicating with the air cavity 410 and a one-way valve is fixedly installed. The one-way valve can prevent the gas inside the air cavity 410 from escaping and can deliver gas into the air cavity 410, thereby increasing the air pressure inside the air cavity 410. This causes the flexible sealing plate 404 to expand outward, further improving the sealing performance of the branch. However, under the action of hydraulic pressure inside the branch, pressure will be applied to the flexible sealing plate 404, causing the flexible sealing plate 404 to deform away from the branch. When the water pressure inside the branch is high, it will lead to seal failure.

[0035] It should be noted that the axis of the side sealing ring 409 coincides with the axis of the flow channel, and the surface area of ​​the side sealing ring 409 is larger than the cross-sectional area of ​​the flow channel. The internal water pressure will enter the interior of the side sealing ring 409 through the flow hole 419 and apply pressure to the side of the side sealing ring 409. This pressure will not exert a thrust on the flexible sealing piece 404, causing the side sealing ring 409 to deform. This will affect the air pressure inside the air chamber 410. This means that the greater the water pressure, the greater the air pressure inside the air chamber 410, which allows the sealing structure to adapt to scenarios with higher water pressure.

[0036] In this embodiment, the adjustment assembly includes a drive shaft 412 rotatably mounted inside the connecting shaft 402, a drive disk 413 fixedly mounted on the drive shaft 412, a connecting rod 414 fixedly mounted on the base plate 407, a connecting rod 415 rotatably mounted on the connecting rod 414, the other end of the connecting rod 415 being rotatably connected to the drive disk 413, a sliding sleeve 416 slidably mounted on the drive shaft 412, a circumferential positioning between the sliding sleeve 416 and the drive shaft 412, and a thread 417 on the sliding sleeve 416. A handle 418 is fixedly installed on the 16. By rotating the handle 418, the drive shaft 412 can be rotated, which in turn causes the drive disc 413 to rotate. The rotating drive disc 413 can pull or push the base plate 407 to move through the connecting rod 415, thereby moving the entire support frame and causing the flexible sealing plate 404 to move. This reduces the difficulty of installing the branch sealing pin 401, and the self-locking property of the threaded connection can prevent the drive shaft 412 from loosening after adjustment.

[0037] In this embodiment, rotating the handle 418 can drive the drive shaft 412 to rotate, which in turn causes the drive disc 413 to rotate. The rotating drive disc 413 can then pull or push the base plate 407 to move via the connecting rod 415, thereby moving the entire support frame and thus moving the flexible sealing plate 404. This can reduce the difficulty of installing the branch sealing pin 401. The internal water pressure will enter the side sealing ring 409 through the flow hole 419 and apply pressure to the side of the side sealing ring 409. This pressure will not exert a thrust on the flexible sealing piece 404, causing the side sealing ring 409 to deform. This will affect the air pressure inside the air chamber 410. This means that the greater the water pressure, the greater the air pressure inside the air chamber 410, which allows the sealing structure to adapt to scenarios with higher water pressure.

[0038] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A flow channel structure for a solid metal block, comprising a metal block, characterized in that, Also includes: An outer surface flow channel assembly (101) is provided, and a sealing cover plate (102) is welded to the opening of the outer surface flow channel assembly (101). An internal grid flow channel (201) is formed by interconnected intersecting channels (202) and parallel channels (203) as well as multiple individual channels (204). The intersecting channels (202) are formed by oblique drilling, and their axes are at a non-perpendicular angle to the outer surface. The parallel channels (203) are connected to the intersecting channels (202). An edge-sealing assembly, comprising a single-hole sealing plate (301), a combined sealing block (302), and parallel-hole cover plates (303), wherein: The single-hole sealing plate (301) is welded to the opening end of the edge individual channel (204); The combined sealing block (302) is installed at the intersection cavity of the intersecting channels (202) located at the edge, covering all intersecting channels (202) and welded to seal; The parallel hole cover plate (303) covers the parallel holes (203) by milling a connecting groove, forming a connecting cavity; A branch blocking pin (401) is inserted into a hole in a non-preset branch and welded to the hole wall. The outer surface flow channel assembly (101), the inner mesh flow channel (201), and the edge sealing assembly are welded together to form a sealed directional coolant flow path.

2. The flow channel structure for a solid metal block according to claim 1, characterized in that, The internal grid flow channel (201) has a sealing hole (501) on the non-preset branch, the sealing hole will block the continuous channel, and the branch sealing pin (401) is located inside the sealing hole (501).

3. A flow channel structure for a solid metal block according to claim 2, characterized in that, The branch sealing pin (401) is equipped with a sealing component, which includes a support frame, a flexible sealing plate (404) fixedly installed on the support frame, and an adjustment component that drives the support frame to retract. The sealing component withstands the water pressure inside the flow channel and enhances the pressure exerted by the flexible sealing plate on the sealing hole (501).

4. A flow channel structure for a solid metal block according to claim 3, characterized in that, The branch blocking pin (401) includes a connecting shaft (402), and the support frame includes a support body (403) fixedly installed on the connecting shaft (402). A support frame (405) is slidably installed inside the support body (403). A partition ring (406) is fixedly installed on the support frame (405), and a base plate (407) is fixedly installed on the partition ring (406). The base plate (407) is fixedly connected to the support frame (405) through a connecting rod (408).

5. A flow channel structure for a solid metal block according to claim 4, characterized in that, The flexible sealing plate (404) is fixedly connected to the support body (403) and the support frame (405). The flexible sealing plate (404) is provided with a flow hole (419), and the flow hole (419) is fixedly connected to the separator ring (406).

6. A flow channel structure for a solid metal block according to claim 5, characterized in that, A flexible, cylindrical side sealing ring (409) is fixedly installed between the separator ring (406) and the base plate (407). A sealed air cavity (410) is formed between the support body (403), the flexible sealing plate (404), the base plate (407), and the side sealing ring (409). The support body (403) is provided with an air hole (411) communicating with the air cavity (410) and a one-way valve is fixedly installed on it.

7. A flow channel structure for a solid metal block according to claim 6, characterized in that, The axis of the side sealing ring (409) coincides with the axis of the flow channel, and the surface area of ​​the side sealing ring (409) is larger than the cross-sectional area of ​​the flow channel.

8. A flow channel structure for a solid metal block according to claim 7, characterized in that, The adjustment assembly includes a drive shaft (412) rotatably mounted inside a connecting shaft (402), a drive disc (413) fixedly mounted on the drive shaft (412), a connecting rod (414) fixedly mounted on the base plate (407), a connecting rod (415) rotatably mounted on the connecting rod (414), the other end of the connecting rod (415) being rotatably connected to the drive disc (413), a sliding sleeve (416) slidably mounted on the drive shaft (412), a circumferential positioning is provided between the sliding sleeve (416) and the drive shaft (412), a thread (417) is provided on the sliding sleeve (416), and a handle (418) is fixedly mounted on the sliding sleeve (416).

9. A method for processing flow channels in a solid metal block, applied to the flow channel structure of the solid metal block as described in claim 8, the method comprising the following steps: Step 1: Mill the pre-set flow channel on the outer surface of the solid metal block, and weld the sealing cover plate (102) at the opening of the flow channel to achieve a seal; Step 2: Drill holes obliquely from the outer surface side to form intersecting channels (202), parallel channels (203), and individual channels (204), forming an internal mesh flow channel (201). Step 3: Seal the single holes, intersecting holes, and parallel holes at the edges: Single-hole sealing: A single-hole sealing plate (301) is welded to the open end of a single channel (204). Cross-hole sealing: Mill a cavity at the intersection of the edge cross-holes (202), install a combined sealing block (302) and weld it to seal; Parallel hole plugging: A connecting groove is milled between parallel channels (203), and parallel hole cover plates (303) are installed to form a connecting cavity; Step 4: Block the branches in the grid flow channel (201) that are not the preset path: Drill a hole from the back of the solid metal block to the target branch, insert the branch blocking pin (401) and weld it to the hole wall; Step 5: By combining the above steps, a directional coolant flow path is formed inside the solid metal block.

10. A method for processing flow channels in a solid metal block according to claim 9, characterized in that, A pressure test was performed on the mesh flow channel (201) to ensure that the sealing performance met the preset coolant flow rate requirements.

Images