A precision machining equipment for four-way internal cavities

Abstract

This utility model provides a precision machining equipment for the inner cavity of a four-way valve, relating to the field of four-way valve inner cavity machining technology. It includes a main frame, a base, a rotary table, a lifting cylinder, and a clamping assembly. The base is fixedly connected to the bottom of the main frame, and the rotary table is rotatably connected to the top of the base. A lifting cylinder is fixedly installed on the top of the main frame, and a clamping assembly is provided between the lifting cylinder and the rotary table. A hole-expanding mechanism is provided on one side of the main frame. This utility model uses a sliding frame to drive an expanding needle into the inner cavity of a four-way valve. The expanding needle expands the four-way valve, and after contacting the inner cavity, it drives a slider to slide outside the guide rod to adjust the position of the expanding needle, thereby compensating for the position of the four-way valve port. It also further compresses the spring that was originally in a compressed state. When the expanding needle exits the inner cavity of the four-way valve, the spring force drives the slider to move back, thereby resetting the expanding needle.

Description

Technical Field

[0001] This utility model relates to the field of four-way internal cavity technology, and in particular to a precision machining equipment for four-way internal cavities. Background Technology

[0002] A four-way valve is a pipe fitting with four ports used to connect four pipes, enabling the convergence and divergence of fluids or gases in four directions. It is usually made of materials such as copper, stainless steel, steel, and plastic. It features convenient connection and simple operation. Four-way valves are widely used in fluid transportation and gas transmission systems in fields such as chemical, petroleum, metallurgy, gas, power, and construction. It is a key component in pipeline systems for changing the flow direction of media.

[0003] Existing forming mechanisms rely entirely on a loading robot to position the four-way valve port on the fixture during the forming process. However, the four-way valve is prone to displacement on the fixture during the loading and transportation process. If it becomes misaligned with the reamer inserted into the inner cavity, the reamer can easily crush the four-way valve, resulting in a high scrap rate. Therefore, this invention proposes a precision machining device for the inner cavity of a four-way valve to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a precision machining device for the inner cavity of a four-way valve, which solves the problem in the prior art where the four-way valve and the reaming pin are easily misaligned when the valve is placed into the fixture by a robotic arm, and the reaming pin is prone to crushing the four-way valve, resulting in a high scrap rate for the four-way valve.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a precision machining equipment for a four-way internal cavity, including a main frame, a base, a rotary table, a lifting cylinder and a clamping assembly. The base is fixedly connected to the bottom of the main frame, and the rotary table is rotatably connected to the top of the base. The lifting cylinder is fixedly installed on the top of the main frame, and a clamping assembly is provided between the lifting cylinder and the rotary table. A hole enlarging mechanism is provided on one side of the main frame.

[0006] A further improvement is made in that: the hole-expanding mechanism includes a sliding frame, a guide rod, a slider, an expanding pin, and a spring. A sliding frame is provided on one side of the main frame. A guide rod is fixedly connected to the inner side of the sliding frame. A slider is slidably connected to the outer side of the guide rod. An expanding pin is fixedly connected to the outer side of the slider. Springs are symmetrically provided at the top and bottom ends of the guide rod.

[0007] A further improvement is that: the clamping assembly has arc holes on all four sides, the arc holes are at the same height as the center of the reaming pin, and the base is provided with a rotating mechanism.

[0008] A further improvement is made in that: the rotating mechanism includes a worm gear, a worm, and a motor; the worm gear is fixedly connected to the outer side of the rotating table; the worm is rotatably connected to one side of the base; the outer wall of the worm gear meshes with the outer wall of the worm; the motor is fixedly installed on one side of the base; and the output end of the motor is fixedly connected to one end of the worm.

[0009] A further improvement is that the clamping assembly includes a lower clamping block and an upper clamping block. The lower clamping block has symmetrically fixedly connected protruding rods on both sides, and the upper clamping block has symmetrically provided locking holes on both sides. The top of the protruding rod is inserted into the locking hole. The output end of the lifting cylinder is rotatably connected to the top of the upper clamping block, and the top of the rotating table is fixedly connected to the bottom of the lower clamping block.

[0010] A further improvement is that a slide rail is fixedly connected to one side of the bottom of the main frame, the bottom end of the sliding frame is slidably connected to the top of the slide rail, and a moving mechanism is provided at the bottom of the main frame.

[0011] A further improvement is that the moving mechanism includes a drive cylinder and a connecting plate. The drive cylinder is fixedly installed at the bottom of the main frame, and the connecting plate is fixedly connected to the bottom end of the sliding frame. The output end of the drive cylinder is fixedly connected to one side of the connecting plate.

[0012] The beneficial effects of this utility model are as follows: the sliding frame drives the expanding needle to be inserted into the inner cavity of the four-way valve, and the insertion end of the expanding needle is designed with a conical head structure. The expanding needle expands the four-way valve, and after the expanding needle contacts the inner cavity of the four-way valve, it can drive the slider to slide outside the guide rod to adjust the position of the expanding needle, so as to compensate for the position of the four-way valve port. It also further compresses the spring that was originally in a compressed state. When the expanding needle exits the inner cavity of the four-way valve, the elastic force generated by the spring drives the slider to move back, so as to reset the expanding needle. This solves the problem in the prior art that when the four-way valve is placed into the fixture by a robot arm, the four-way valve and the expanding needle are easily misaligned, and the expanding needle is easy to crush the four-way valve, resulting in a high scrap rate of the four-way valve. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a schematic diagram of the clamp assembly structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the rotating mechanism structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the hole-expanding mechanism of this utility model.

[0017] The components include: 1. Main frame; 2. Base; 3. Rotary table; 4. Lifting cylinder; 5. Clamp assembly; 6. Sliding frame; 7. Guide rod; 8. Slider; 9. Hole-expanding pin; 10. Spring; 11. Worm gear; 12. Worm; 13. Motor; 14. Lower clamping block; 15. Upper clamping block; 16. Arc hole; 17. Protruding rod; 18. Locking hole; 19. Drive cylinder; 20. Connecting plate; 21. Slide rail. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a precision machining device for the inner cavity of a four-way valve, including a main frame 1, a base 2, a rotary table 3, a lifting cylinder 4, and a clamping assembly 5. The base 2 is fixedly connected to the bottom of the main frame 1, and the rotary table 3 is rotatably connected to the top of the base 2. The lifting cylinder 4 is fixedly installed on the top of the main frame 1, and the clamping assembly 5 is provided between the lifting cylinder 4 and the rotary table 3. A hole-expanding mechanism is provided on one side of the main frame 1. The lifting cylinder 4 and the clamping assembly 5 cooperate to fix the four-way valve on the top of the rotary table 3. The hole-expanding mechanism is inserted into the inner cavity of the four-way valve to increase the diameter of the four-way valve. Then, the rotary table 3 drives the clamping assembly 5 to rotate, so that the four ports of the four-way valve are sequentially parallel to the position of the hole-expanding mechanism, completing the hole-expanding of the entire four-way valve. The hole-expanding mechanism can compensate for the position of the ports, so as to solve the problem in the prior art where the four-way valve and the hole-expanding needle are easily misaligned when the clamp is placed by a robot arm, and the hole-expanding needle is easily crushed by the four-way valve, resulting in a high scrap rate of the four-way valve.

[0020] The clamping assembly 5 includes a lower clamping block 14 and an upper clamping block 15. The lower clamping block 14 has symmetrically fixedly connected protruding rods 17 on both sides. The upper clamping block 15 has symmetrically provided locking holes 18 on both sides. The top of the protruding rods 17 is inserted into the locking holes 18. The output end of the lifting cylinder 4 is rotatably connected to the top of the upper clamping block 15. The top of the rotating table 3 is fixedly connected to the bottom of the lower clamping block 14. A four-way valve is placed into the arc-shaped hole 16 inside the lower clamping block 14, with the four ports of the four-way valve extending through the four sides of the lower clamping block 14. The output end of the lifting cylinder 4 drives the upper clamping block 15 downwards, thus lifting the upper clamping block 15. The clamping block 15 covers the top of the lower clamping block 14, fixing the four-way valve to the top of the rotary table 3. The upper clamping block 15 can rotate around the output end of the lifting cylinder 4 without interfering with the rotation of the four-way valve driven by the rotary table 3. The protruding rod 17 is inserted into the inside of the locking hole 18. The protruding rod 17 and the locking hole 18 can limit the position of the upper clamping block 15 and the lower clamping block 14, improving the precision of fixing the four-way valve with the upper clamping block 15 and the lower clamping block 14. The output end of the lifting cylinder 4 can drive the upper clamping block 15 to move upward, separating the upper clamping block 15 from the lower clamping block 14. At this time, the four-way valve can be taken out from the inside of the clamping assembly 5.

[0021] A slide rail 21 is fixedly connected to one side of the bottom of the main frame 1. The bottom end of the sliding frame 6 is slidably connected to the top of the slide rail 21. A moving mechanism is provided at the bottom of the main frame 1. The moving mechanism includes a drive cylinder 19 and a connecting plate 20. The drive cylinder 19 is fixedly installed at the bottom of the main frame 1. The connecting plate 20 is fixedly connected to the bottom end of the sliding frame 6. The output end of the drive cylinder 19 is fixedly connected to one side of the connecting plate 20. The bottom end of the sliding frame 6 is connected to the output end of the drive cylinder 19 through the connecting plate 20. The output end of the drive cylinder 19 can drive the sliding frame 6 to slide on the slide rail 21. The sliding frame 6 drives the expanding needle 9 to insert into the inner cavity of the four-way valve to expand the hole of the four-way valve. After the hole is expanded, the output end of the drive cylinder 19 drives the expanding needle 9 to move backward and exit the inner cavity of the four-way valve through the sliding frame 6.

[0022] The expanding mechanism includes a sliding frame 6, a guide rod 7, a slider 8, an expanding needle 9, and a spring 10. The sliding frame 6 is provided on one side of the main frame 1. The guide rod 7 is fixedly connected to the inner side of the sliding frame 6. The slider 8 is slidably connected to the outer side of the guide rod 7. The expanding needle 9 is fixedly connected to the outer side of the slider 8. The top and bottom ends of the guide rod 7 are symmetrically provided with springs 10. The sliding frame 6 drives the expanding needle 9 to be inserted into the inner cavity of the four-way valve. The insertion end of the expanding needle 9 is designed with a conical head structure. The expanding needle 9 expands the four-way valve. After the expanding needle 9 contacts the inner cavity of the four-way valve, it can drive the slider 8 to slide outside the guide rod 7 to adjust the position of the expanding needle 9, thereby compensating for the position of the four-way valve port. It also further compresses the spring 10, which was originally in a compressed state. When the expanding needle 9 exits the inner cavity of the four-way valve, the elastic force generated by the spring 10 drives the slider 8 to move back, thereby resetting the expanding needle 9.

[0023] The clamping assembly 5 has arc-shaped holes 16 on all four sides, and the arc-shaped holes 16 are at the same height as the center of the expanding pin 9. The base 2 is equipped with a rotating mechanism, which includes a worm wheel 11, a worm 12 and a motor 13. The worm wheel 11 is fixedly connected to the outer side of the rotating table 3, and the worm 12 is rotatably connected to one side of the base 2. The outer walls of the worm wheel 11 and the worm 12 mesh with each other. The motor 13 is fixedly installed on one side of the base 2, and the output end of the motor 13 is fixedly connected to one end of the worm 12. The motor 13 can drive the worm 12 to rotate on one side of the base 2. The worm 12 meshes with the worm wheel 11, and the rotating table 3 is connected to the worm wheel 11 as a whole, so as to drive the rotating table 3 to rotate on the top of the base 2, so that the four ports of the four-way valve are parallel to the position of the expanding mechanism in sequence, thus completing the expanding of the entire four-way valve.

[0024] The precision machining equipment for the inner cavity of the four-way valve has a sliding frame 6 that drives the expanding needle 9 to be inserted into the inner cavity of the four-way valve. The insertion end of the expanding needle 9 is designed with a conical head structure. The expanding needle 9 expands the four-way valve. After the expanding needle 9 contacts the inner cavity of the four-way valve, it can drive the slider 8 to slide outside the guide rod 7 to adjust the position of the expanding needle 9, thereby compensating for the position of the four-way valve port. It also further compresses the spring 10, which was originally in a compressed state. When the expanding needle 9 exits the inner cavity of the four-way valve, the elastic force generated by the spring 10 drives the slider 8 to move back, thereby resetting the expanding needle 9.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A four-way inner cavity precision machining equipment, comprising a main frame (1), a base (2), a rotating table (3), a lifting cylinder (4) and a clamp assembly (5), characterized in that: The bottom of the main frame (1) is fixedly connected to a base (2), the top of the base (2) is rotatably connected to a rotating platform (3), the top of the main frame (1) is fixedly installed with a lifting cylinder (4), a clamping assembly (5) is provided between the lifting cylinder (4) and the rotating platform (3), and a hole-expanding mechanism is provided on one side of the main frame (1). The hole-expanding mechanism includes a sliding frame (6), a guide rod (7), a slider (8), an expanding needle (9), and a spring (10). The sliding frame (6) is provided on one side of the main frame (1). The guide rod (7) is fixedly connected to the inner side of the sliding frame (6). The slider (8) is slidably connected to the outer side of the guide rod (7). The expanding needle (9) is fixedly connected to the outer side of the slider (8). The top and bottom ends of the guide rod (7) are symmetrically provided with springs (10).

2. A four-way lumen precision machining apparatus according to claim 1, characterized in that: The clamp assembly (5) has arc holes (16) on all four sides. The arc holes (16) are at the same height as the center of the reaming pin (9). The base (2) is equipped with a rotating mechanism.

3. A four-way lumen precision machining apparatus according to claim 2, wherein: The rotating mechanism includes a worm wheel (11), a worm (12) and a motor (13). The worm wheel (11) is fixedly connected to the outer side of the rotating platform (3). The worm (12) is rotatably connected to one side of the base (2). The outer walls of the worm wheel (11) and the worm (12) mesh with each other. The motor (13) is fixedly installed on one side of the base (2). The output end of the motor (13) is fixedly connected to one end of the worm (12).

4. The precision machining equipment for a four-way internal cavity according to claim 1, characterized in that: The clamping assembly (5) includes a lower clamping block (14) and an upper clamping block (15). The lower clamping block (14) is symmetrically fixedly connected with protruding rods (17) on both sides. The upper clamping block (15) is symmetrically provided with locking holes (18) on both sides. The top of the protruding rods (17) is inserted into the interior of the locking holes (18). The output end of the lifting cylinder (4) is rotatably connected to the top of the upper clamping block (15). The top of the rotating table (3) is fixedly connected to the bottom of the lower clamping block (14).

5. The four-way inner lumen precision machining apparatus of claim 1, wherein: A slide rail (21) is fixedly connected to one side of the bottom of the main frame (1), and the bottom end of the sliding frame (6) is slidably connected to the top of the slide rail (21). A moving mechanism is provided at the bottom of the main frame (1).

6. A four-way lumen precision machining apparatus according to claim 5, wherein: The moving mechanism includes a drive cylinder (19) and a connecting plate (20). The drive cylinder (19) is fixedly installed at the bottom of the main frame (1), and the connecting plate (20) is fixedly connected to the bottom end of the sliding frame (6). The output end of the drive cylinder (19) is fixedly connected to one side of the connecting plate (20).

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