Four-way valve capillary tube press-fitting equipment

Abstract

The invention discloses four-way valve capillary tube press-fitting equipment, and relates to the technical field of metal machining, the four-way valve capillary tube press-fitting equipment comprises a workbench, the press-fitting equipment comprises a fixing table, a pressing table, a pressing plate, a pressing plate and a pressing plate, the fixing table is fixedly mounted at the bottom of the inner wall of the workbench, a placing table is slidably mounted on the inner wall of the fixing table, a placing groove is formed in the top of the placing table, and a four-way valve is placed on the inner wall of the placing groove; the pneumatic pressing rod is fixedly installed at the top of the inner wall of the workbench, an inner rod is slidably installed on the inner wall of the fixing rod, a sliding rod is slidably installed on the inner wall of the inner rod, and the auxiliary device is arranged on the inner wall of the workbench and used for conveniently taking out the four-way valve through ingenious linkage of the pressing rod and the lifting plate. In the press-fitting process, the four-way valve can be stably pressed into the bottom of the placing groove; and after press fitting is completed, the lifting plate can automatically jack up the finished product by a certain distance, so that an operator can take the workpiece conveniently, the operation time is shortened, and the overall operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, specifically to a four-way valve capillary press-fitting device. Background Technology

[0002] In the field of metal component assembly, especially in the press-fitting process of precision parts such as four-way valves and capillary tubes, existing equipment and technologies typically treat multiple steps in the assembly process as independent stages. This discrete processing model often leads to loose equipment layout and poor process integration, resulting in low overall production efficiency.

[0003] Patent publication number CN204771447U relates to the field of capillary pressing equipment technology, including a base and a mounting seat disposed on the base. The mounting seat has a C-shaped positioning hole that extends horizontally through the mounting seat for mounting workpieces. The upper end face of the mounting seat has a pressing surface for pressing capillary tubes and a limiting block for restricting the capillary tubes. The pressing surface and the limiting block are located on both sides of the opening of the C-shaped positioning hole. This patent has a simple structure, is easy to operate, and can effectively improve the efficiency of capillary pressing.

[0004] The aforementioned patented structure is simple and easy to operate, effectively improving the efficiency of capillary press-fitting. However, such equipment typically lacks an effective capillary clamping and alignment mechanism. During the press-fitting process, the slender capillary, lacking stable support, is prone to skew and wobbling, making it difficult to accurately align with the tiny insertion holes on the four-way valve. This not only increases assembly difficulty but also easily scratches the inner wall of the insertion hole due to tube misalignment or leads to incomplete assembly, directly affecting the product's sealing performance and reliability. Furthermore, traditional equipment generally lacks an automatic workpiece ejection structure. After press-fitting, the four-way valve is often tightly stuck at the bottom of the placement slot, requiring operators to frequently use auxiliary tools to pry it out. This process not only significantly reduces production efficiency and extends the work cycle but also easily causes surface damage to precision workpieces or loosens the already installed capillary during prying. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a four-way valve capillary press-fitting device, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a four-way valve capillary press-fitting device, comprising a workbench, wherein the press-fitting device includes: A fixed platform is fixedly installed on the bottom of the inner wall of the workbench. A placement platform is slidably installed on the inner wall of the fixed platform. A placement groove is opened on the top of the placement platform, and a four-way valve is placed on the inner wall of the placement groove. A pneumatic pressure rod is fixedly installed on the top of the inner wall of the workbench, and the four-way valve has an insertion hole on the side near the pneumatic pressure rod; A fixed rod is fixedly installed on the inner wall of the workbench, and an inner rod is slidably installed on the inner wall of the fixed rod, and a sliding rod is slidably installed on the inner wall of the inner rod; A fixed frame is fixedly installed on the inner wall of the workbench. A square groove is provided on the side of the workbench near the fixed frame. The fixed frame contacts the inner wall of the square groove. A sliding groove is provided on the surface of the fixed frame. A capillary tube slides on the inner wall of the sliding groove. An auxiliary device for easily removing the four-way valve is installed on the inner wall of the workbench; A pusher device for quickly aligning the capillary tube with the four-way valve is installed on the inner wall of the worktable. A guide device for accurately inserting a capillary tube into a four-way valve is installed on the inner wall of the worktable.

[0007] According to the above technical solution, the auxiliary device includes a telescopic rod, a positioning frame, a sliding frame, a sliding buckle, and a fixing key. The fixed end of the telescopic rod is fixedly installed on the inner wall of the placement platform. The positioning frame is fixedly installed on the top of the movable end of the telescopic rod. A through groove is formed on the surface of the positioning frame. The sliding frame is slidably installed on the inner wall of the positioning frame. The sliding buckle is slidably installed on the inner wall of the positioning frame. The fixing key is slidably installed on the top of the placement platform. A slot is formed on the side of the fixed end of the telescopic rod near the fixing key. A fixing groove is formed on the side of the movable end of the telescopic rod near the fixing key. The shape of the fixing groove matches the slot.

[0008] According to the above technical solution, the auxiliary device further includes a sliding pin, a sliding baffle, a connecting rod, a sliding push rod, a lifting plate, and a pressing rod. The sliding pin slides through the surface of the fixed platform. The sliding baffle is slidably installed on the inner wall of the fixed platform. A circular groove is formed on the side of the placement platform near the sliding pin. The shape of the sliding pin matches the circular groove. The sliding push rod is slidably installed on the surface of the placement platform. One end of the connecting rod is rotatably connected to the sliding push rod, and the other end of the connecting rod is rotatably connected to the positioning frame. The lifting plate is slidably installed at the bottom of the inner wall of the placement groove. The pressing rod is slidably installed on the inner wall of the placement platform. The side of the rod near the sliding pin is sloped. The slope of the sliding push rod is to push the sliding pin to move and release the restriction on the placement platform. The side of the pressure rod near the fixed platform is sloped. The slope of the pressure rod is to facilitate the fixed platform to push the pressure rod to move in the direction of the lifting plate. The side of the pressure rod near the lifting plate is sloped. The slope of the pressure rod is to facilitate pressing the lifting plate to move downward. Through the clever linkage between the pressure rod and the lifting plate, the four-way valve can be steadily pressed into the bottom of the placement groove during the pressing process. After the pressing is completed, the lifting plate can automatically lift the finished product a certain distance, which greatly facilitates the operator to pick up the workpiece.

[0009] According to the above technical solution, the side of the sliding frame near the sliding buckle is set as an inclined surface. The inclined surface of the sliding frame is used to push the sliding buckle to move. An elastic element is provided between the sliding buckle and the positioning frame. The elastic element is provided to drive the sliding buckle to reset. An elastic element is provided between the sliding baffle and the placement platform. The elastic element is provided to drive the sliding baffle to reset. An elastic element is provided between the fixing key and the placement platform. The elastic element is provided to drive the fixing key to move in the direction of the telescopic rod.

[0010] According to the above technical solution, the pushing device includes a first tooth, a double-headed gear, a second tooth, a vertical plate, a push plate, a sliding plate, and a stop plate. The double-headed gear is rotatably mounted on the inner wall of the fixed platform. The first tooth is fixedly mounted on the side of the placement platform near the double-headed gear. The second tooth is fixedly mounted on the side of the inner rod near the double-headed gear. The vertical plate is fixedly mounted on the side of the sliding rod near the fixed frame. The sliding plate is slidably mounted on the inner wall of the fixed frame. The push plate is fixedly mounted at the bottom of the sliding plate. The stop plate is slidably mounted on the inner wall of the fixed frame. The downward movement of the sliding rod automatically triggers the movement of the push rod and the stop plate, smoothly pushing the capillary tube from the storage position to the preparatory position in the positioning frame area, ensuring the continuity of production.

[0011] According to the above technical solution, the pushing device further includes a pushing rod and a clamping plate. The pushing rod is slidably installed on the inner wall of the sliding rod, and the clamping plate is slidably installed on the inner wall of the sliding rod. The pushing rod is fixedly connected to the clamping plate. The side of the pushing rod near the inner rod is set with an inclined surface. The inclined surface of the pushing rod is to facilitate the inner rod to press the pushing rod to move inward toward the sliding rod. The top of the clamping plate is set with an inclined surface. An elastic element is provided between the pushing rod and the sliding rod. The elastic element is provided to drive the pushing rod to move away from the sliding rod.

[0012] According to the above technical solution, the pushing device further includes an elastic element four between the sliding plate and the fixed frame. The elastic element four is provided to push the sliding plate to reset. The side of the sliding plate near the stop plate is set as an inclined surface. The inclined surface of the sliding plate is provided to facilitate pushing the stop plate to move upward. The teeth two mesh with the double-headed gear.

[0013] According to the above technical solution, the guiding device includes a sliding rod 1, a connecting rod 2, a sliding rod 3, a guide plate 1, a connecting rod, and a guide plate 2. The sliding rod 1 is slidably installed on the top of the inner rod, and the sliding rod 2 is slidably installed on the top of the inner rod. One end of the connecting rod 2 is rotatably connected to the sliding rod 1, and the other end of the connecting rod 2 is rotatably connected to the sliding rod 2. The guide plate 1 is slidably installed on the inner wall of the sliding rod. One end of the connecting rod 3 is rotatably connected to the sliding rod 2, and the other end of the connecting rod 3 is rotatably connected to the guide plate 1. The guide plate 2 is slidably installed on the inner wall of the sliding rod near the placement platform. The connecting rod is slidably installed on the inner wall of the sliding rod. One end of the connecting rod is fixedly connected to the guide plate 1, and the other end of the connecting rod is fixedly connected to the guide plate 2. Through the reciprocating motion of the inner rod, the guide plate 1 and the guide plate 2 can perform precise guiding tasks in the loading / unloading stage and the pressing preparation stage, respectively.

[0014] According to the above technical solution, an elastic element six is ​​provided between the sliding rod one and the inner rod. The elastic element six is ​​provided to drive the sliding rod one to reset. The inner walls of the guide plate one and the guide plate two are both provided with sliding grooves. The shape of the sliding groove matches the capillary tube. An elastic element seven is provided between the guide plate one and the sliding rod. The elastic element seven is provided to drive the guide plate one to move downward.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, when the placement table moves the four-way valve, which has been pressed and installed, away from the worktable, the pressure rod releases its pressure on the lifting plate, causing the lifting plate to move upward. This upward movement of the lifting plate pushes the four-way valve upward a certain distance, making it easier to remove. Through the clever linkage between the pressure rod and the lifting plate, the four-way valve can be securely pressed into the bottom of the placement slot during the pressing process. After the pressing is completed, the lifting plate automatically lifts the finished product a certain distance, greatly facilitating the operator to pick up the workpiece, reducing operation time, and improving overall work efficiency.

[0016] 2. In this invention, when the sliding plate moves to allow a capillary tube to enter the working position, it pushes the drive baffle plate to rise, promptly blocking subsequent capillary tubes. This ensures that only one capillary tube is accurately fed into the sliding rod at a time, greatly improving the reliability and stability of the feeding process. The movement of the push rod drives the clamping plate to move. The movement of the clamping plate causes the capillary tube on the top inclined surface of the clamping plate to slowly slide towards the positioning frame. The downward movement of the sliding rod automatically triggers the movement of the push rod and the clamping plate, smoothly pushing the capillary tube from the storage position to the preparatory position in the positioning frame area. This ensures the continuity of production, effectively reduces equipment waiting time or manual intervention time, and thus improves overall operating efficiency.

[0017] 3. In this invention, the connecting rod moves and pushes the second guide plate downward, so that the capillary can accurately dock with the positioning frame. Through the reciprocating motion of the inner rod, the first guide plate and the second guide plate can perform precise guiding tasks in the loading and unloading stage and the pressing preparation stage, respectively. This forced mechanical guidance ensures that the capillary maintains the preset path and posture during the process of entering the sliding rod and finally docking with the positioning frame, effectively eliminating assembly problems caused by position deviation and significantly improving the success rate of pressing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the telescopic rod and positioning frame of the present invention; Figure 3 This is a schematic diagram of the position structure of the connecting rod and the sliding push rod of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram of section A; Figure 5 This is a schematic diagram of the lifting plate and pressure bar positions of the present invention; Figure 6 This is a schematic diagram of the double-headed gear and the two-position structure of the teeth of the present invention; Figure 7 This is a schematic diagram of the positional structure of the sliding plate and the baffle plate of the present invention; Figure 8 This is a schematic diagram of the position and structure of the guide plate and connecting rod of the present invention.

[0019] The meanings of the labels in the diagram are as follows: 1. Workbench; 2. Fixed platform; 3. Placement platform; 4. Pneumatic pressure rod; 5. Fixed rod; 6. Inner rod; 7. Sliding rod; 8. Fixed frame; 9. Sliding pin; 10. Sliding baffle; 11. Telescopic rod; 12. Positioning frame; 13. Sliding frame; 14. Sliding buckle; 15. Linkage rod one; 16. Sliding push rod; 17. Lifting plate; 18. Pressure rod; 19. Fixed key; 21. Gear one; 22. Double-headed gear; 23. Gear two; 24. Vertical plate; 25. Push plate; 26. Sliding plate; 27. Blocking plate; 28. Push rod; 29. ​​Clamping plate; 31. Sliding rod one; 32. Linkage rod two; 33. Sliding rod two; 34. Linkage rod three; 35. Guide plate one; 36. Connecting rod; 37. Guide plate two. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-8 One embodiment of the present invention is: a four-way valve capillary press-fitting device, which includes a workbench 1, and the press-fitting device includes: Fixed platform 2 is fixedly installed on the bottom of the inner wall of workbench 1. Placement platform 3 is slidably installed on the inner wall of fixed platform 2. Placement platform 3 has a placement groove on the top and a four-way valve is placed on the inner wall of placement groove. The pneumatic lever 4 is fixedly installed on the top of the inner wall of the workbench 1, and the four-way valve has an insertion hole on the side near the pneumatic lever 4; Fixed rod 5 is fixedly installed on the inner wall of workbench 1. Inner rod 6 is slidably installed on the inner wall of fixed rod 5. Sliding rod 7 is slidably installed on the inner wall of inner rod 6. The fixed frame 8 is fixedly installed on the inner wall of the workbench 1. A square groove is provided on the side of the workbench 1 near the fixed frame 8. The fixed frame 8 contacts the inner wall of the square groove. A sliding groove is provided on the surface of the fixed frame 8. A capillary tube slides on the inner wall of the sliding groove. An auxiliary device for facilitating the removal of the four-way valve is installed on the inner wall of the workbench 1. A pusher device for quickly aligning the capillary tube with the four-way valve is installed on the inner wall of the worktable 1. A guide device for accurately inserting the capillary tube into the four-way valve is installed on the inner wall of the workbench 1.

[0022] The auxiliary device includes a telescopic rod 11, a positioning frame 12, a sliding frame 13, a sliding buckle 14, and a fixing key 19. The fixed end of the telescopic rod 11 is fixedly installed on the inner wall of the placement platform 3. The positioning frame 12 is fixedly installed on the top of the movable end of the telescopic rod 11. A through groove is opened on the surface of the positioning frame 12. The sliding frame 13 is slidably installed on the inner wall of the positioning frame 12. The sliding buckle 14 is slidably installed on the inner wall of the positioning frame 12. The fixing key 19 is slidably installed on the top of the placement platform 3. A slot is opened on the side of the fixed end of the telescopic rod 11 near the fixing key 19. A fixing groove is opened on the side of the movable end of the telescopic rod 11 near the fixing key 19. The shape of the fixing groove matches the slot.

[0023] The auxiliary device also includes a sliding pin 9, a sliding baffle 10, a connecting rod 15, a sliding push rod 16, a lifting plate 17, and a pressure rod 18. The sliding pin 9 slides through the surface of the fixed platform 2. The sliding baffle 10 is slidably installed on the inner wall of the fixed platform 2. A circular groove is opened on the side of the placement platform 3 near the sliding pin 9. The shape of the sliding pin 9 matches the circular groove. The sliding push rod 16 is slidably installed on the surface of the placement platform 3. One end of the connecting rod 15 is rotatably connected to the sliding push rod 16, and the other end of the connecting rod 15 is rotatably connected to the positioning frame 12. The lifting plate 17 is slidably installed. At the bottom of the inner wall of the placement slot, the pressure rod 18 is slidably installed on the inner wall of the placement platform 3. The side of the sliding push rod 16 near the sliding pin 9 is set with an inclined surface. The inclined surface of the sliding push rod 16 is to push the sliding pin 9 to move and release the limitation on the placement platform 3. The side of the pressure rod 18 near the fixed platform 2 is set with an inclined surface. The inclined surface of the pressure rod 18 is to facilitate the fixed platform 2 to push the pressure rod 18 to move towards the lifting plate 17. The side of the pressure rod 18 near the lifting plate 17 is set with an inclined surface. The inclined surface of the pressure rod 18 is to facilitate pressing the lifting plate 17 to move downward.

[0024] The sliding frame 13 has an inclined surface on the side near the sliding buckle 14. The inclined surface of the sliding frame 13 is designed to push the sliding buckle 14 to move. An elastic element 1 is provided between the sliding buckle 14 and the positioning frame 12. The elastic element 1 is provided to drive the sliding buckle 14 to reset. An elastic element 2 is provided between the sliding baffle 10 and the placement platform 3. The elastic element 2 is provided to drive the sliding baffle 10 to reset. An elastic element 3 is provided between the fixing key 19 and the placement platform 3. The elastic element 3 is provided to drive the fixing key 19 to move in the direction of the telescopic rod 11.

[0025] In this embodiment, when the capillary tube needs to be inserted into the four-way valve, the four-way valve needs to be placed inside the placement slot of the placement platform 3, with the insertion hole facing the pneumatic pressure rod 4. After the four-way valve is placed, the placement platform 3 is pushed towards the inside of the worktable 1. When the placement platform 3 is fully inside the worktable 1, it will be directly below the pneumatic pressure rod 4. When the placement platform 3 moves towards the inside of the worktable 1, the inner rod 6 will push the sliding rod 7 towards the pneumatic pressure rod 4. The movement of the sliding rod 7 will drive the capillary tube to move. When the four-way valve is below the pneumatic pressure rod 4, the sliding rod 7 will also be below the pneumatic pressure rod 4. At this time, the capillary tube and the insertion hole are aligned. The output end of the pneumatic pressure rod 4 will extend downward, pushing the sliding rod 7 downward. Sliding downwards will cause the capillary tube to move and insert into the four-way valve. When the placement platform 3 moves into the worktable 1, it will cause the slot to move. The movement of the placement platform 3 will push the sliding baffle 10 to move. The movement of the sliding baffle 10 will release the obstruction of the sliding pin 9, so the sliding pin 9 can move downwards. When the placement platform 3 is completely inside the worktable 1, the slot will coincide with the position of the sliding pin 9, and the sliding pin 9 will insert into the slot to limit the placement platform 3. When the placement platform 3 moves, it will cause the pressure rod 18 to move. The movement of the pressure rod 18 will cause its inclined surface to contact the fixed platform 2, so the pressure rod 18 can move into the placement platform 3. The movement of the pressure rod 18 will push the lifting plate 17 to move downwards. The downward movement of the lifting plate 17 will make the four-way valve completely inside the placement slot. When the placement platform 3 moves the four-way valve, which has been press-fitted, away from the worktable 1, the pressure rod 18 releases its pressure on the lifting plate 17. The lifting plate 17 then moves upward, pushing the four-way valve upward a short distance to facilitate its removal. Through the clever linkage between the pressure rod 18 and the lifting plate 17, the four-way valve is securely pressed into the bottom of the placement slot during the press-fitting process. After press-fitting, the lifting plate 17 automatically lifts the finished product a short distance, greatly facilitating the operator's handling of the workpiece, reducing operation time, and improving overall work efficiency. When the output end of the pneumatic pressure rod 4 moves downward... When the sliding rod 7 is pressed down, it causes the capillary tube to move downward, making it contact the inner wall of the channel. The sliding rod 7 then contacts the sliding frame 13, which in turn presses the sliding frame 13 downward. The downward movement of the sliding frame 13 pushes the sliding buckle 14 towards the capillary tube, thus clamping the capillary tube. When the pneumatic pressure rod 4 pushes the sliding rod 7 to continue moving downward, it presses the positioning frame 12 downward. The downward movement of the positioning frame 12 presses the movable end of the telescopic rod 11 towards the fixed end of the telescopic rod 11, allowing the capillary tube to be pressed into the round hole.When the positioning frame 12 moves downward, it pushes the connecting rod 15 to move. The movement of the connecting rod 15 pushes the sliding push rod 16 to move towards the sliding pin 9, thus releasing the fixation of the sliding pin 9 to the placement platform 3. When the movable end of the telescopic rod 11 moves towards the fixed end of the telescopic rod 11, the slot and the fixed groove will coincide. Then, the fixing key 19 will be inserted into the fixed groove to limit the movable end of the telescopic rod 11. When the output end of the pneumatic pressure rod 4 is reset, the sliding rod 7 will also be reset and move away from the sliding frame 1. 3. When the sliding rod 7 is pressed down, the limiting position of the sliding frame 13 will be released, the sliding frame 13 will release the pressure on the sliding buckle 14, and the sliding buckle 14 will release the clamping of the capillary tube. By pressing down the sliding rod 7, the linkage between the sliding frame 13 and the sliding buckle 14 is triggered, realizing the automatic clamping of the capillary tube. This dynamic clamping mechanism can ensure that the capillary tube remains vertical and stable when inserted into the four-way valve, effectively preventing damage to the insertion hole or improper assembly caused by the tube body tilting, and significantly improving the accuracy of pressing and the product qualification rate.

[0026] Please see Figures 1-8 Based on the above embodiments, in another embodiment of the present invention, the four-way valve capillary press-fitting equipment further includes a pushing device and a guiding device.

[0027] The pushing device includes a tooth 21, a double-ended gear 22, a tooth 23, a vertical plate 24, a push plate 25, a sliding plate 26, and a stop plate 27. The double-ended gear 22 is rotatably mounted on the inner wall of the fixed platform 2. The tooth 21 is fixedly mounted on the side of the placement platform 3 near the double-ended gear 22. The tooth 23 is fixedly mounted on the side of the inner rod 6 near the double-ended gear 22. The vertical plate 24 is fixedly mounted on the side of the sliding rod 7 near the fixed frame 8. The sliding plate 26 is slidably mounted on the inner wall of the fixed frame 8. The push plate 25 is fixedly mounted on the bottom of the sliding plate 26. The stop plate 27 is slidably mounted on the inner wall of the fixed frame 8.

[0028] The pushing device also includes a pushing rod 28 and a clamping plate 29. The pushing rod 28 is slidably mounted on the inner wall of the sliding rod 7, and the clamping plate 29 is slidably mounted on the inner wall of the sliding rod 7. The pushing rod 28 and the clamping plate 29 are fixedly connected. The side of the pushing rod 28 near the inner rod 6 is set with an inclined surface. The pushing rod 28 is set with an inclined surface to facilitate the inner rod 6 to press the pushing rod 28 to move inward toward the sliding rod 7. The top of the clamping plate 29 is set with an inclined surface. An elastic element 5 is provided between the pushing rod 28 and the sliding rod 7. The elastic element 5 is provided to drive the pushing rod 28 to move away from the sliding rod 7.

[0029] In addition, an elastic element four is provided between the sliding plate 26 and the fixed frame 8. The elastic element four is provided to push the sliding plate 26 to reset. The side of the sliding plate 26 near the baffle plate 27 is set as an inclined surface. The inclined surface of the sliding plate 26 is provided to facilitate pushing the baffle plate 27 to move upward. The tooth 23 meshes with the double-headed gear 22.

[0030] The guiding device includes a sliding rod 31, a connecting rod 32, a sliding rod 33, a connecting rod 34, a guide plate 35, a connecting rod 36, and a guide plate 37. The sliding rod 31 is slidably mounted on the top of the inner rod 6, the sliding rod 33 is slidably mounted on the top of the inner rod 6, one end of the connecting rod 32 is rotatably connected to the sliding rod 31, and the other end of the connecting rod 32 is rotatably connected to the sliding rod 33. The guide plate 35 is slidably mounted on the inner wall of the sliding rod 7, one end of the connecting rod 34 is rotatably connected to the sliding rod 33, and the other end of the connecting rod 34 is rotatably connected to the guide plate 35. The guide plate 37 is slidably mounted on the inner wall of the sliding rod 7 on the side near the placement platform 3, and the connecting rod 36 is slidably mounted on the inner wall of the sliding rod 7. One end of the connecting rod 36 is fixedly connected to the guide plate 35, and the other end of the connecting rod 36 is fixedly connected to the guide plate 37.

[0031] An elastic element six is ​​provided between the sliding rod 31 and the inner rod 6. The elastic element six is ​​provided to drive the sliding rod 31 to reset. The inner walls of the guide plate 35 and the guide plate 37 are both provided with sliding grooves. The shape of the sliding grooves matches the capillary tube. An elastic element seven is provided between the guide plate 35 and the sliding rod 7. The elastic element seven is provided to drive the guide plate 35 to move downward.

[0032] In this embodiment, during operation: when the placement platform 3 moves away from the worktable 1, it drives tooth 21 to move. The movement of tooth 21 drives the double-headed gear 22 to rotate. The rotation of the double-headed gear 22 drives tooth 23 to move. The movement of tooth 23 drives the inner rod 6 to move away from the pneumatic pressure rod 4. The movement of the inner rod 6 drives the sliding rod 7 to move. The movement of the sliding rod 7 drives the vertical plate 24 to move. The movement of the vertical plate 24 pushes the push plate 25 to move. The movement of the push plate 25 drives the sliding plate 26 to move. The movement of the sliding plate 26 releases the obstruction to the capillary tube, allowing the capillary tube to enter the sliding rod 7 for placement. The movement of the sliding plate 26 pushes the baffle plate 27 to move upward. The upward movement of the baffle plate 27 obstructs the capillary tube behind it, causing the capillary tube to enter the sliding rod 7 from the fixed frame 8 in a measured manner. When the sliding plate 26 moves to allow one capillary tube to enter the working position, it pushes... The drive plate 27 rises to block subsequent capillaries, ensuring that only one capillary is accurately fed into the sliding rod 7 at a time. This greatly improves the reliability and stability of the feeding process. When the output end of the pneumatic pressure rod 4 presses the sliding rod 7 downward, the movement of the sliding rod 7 will drive the push rod 28 to move. The push rod 28 will lose contact with the inner rod 6 and can then move away from the sliding rod 7. The movement of the push rod 28 will drive the clamping plate 29 to move. The movement of the clamping plate 29 will cause the capillary on the top inclined surface of the clamping plate 29 to slowly slide towards the positioning frame 12. The downward movement of the sliding rod 7 automatically triggers the movement of the push rod 28 and the clamping plate 29, smoothly pushing the capillary from the storage position to the preparatory position in the positioning frame 12 area. This ensures the continuity of production, effectively reduces equipment waiting time or manual intervention time, and thus improves overall operating efficiency.

[0033] When the inner rod 6 moves inward toward the fixed rod 5, it will cause the sliding rod 31 to move, and the sliding rod 31 will come into contact with the fixed rod 5, thereby causing the sliding rod 31 to move toward the sliding rod 7. The movement of the sliding rod 31 will push the connecting rod 32 to move, and the movement of the connecting rod 32 will in turn push the sliding rod 33 to slide toward the vertical plate 24. The movement of sliding rod 2 33 causes connecting rod 3 34 to move, which in turn pushes guide plate 1 35 upward. The upward movement of guide plate 1 35 causes the capillary tube to slide into sliding rod 7 from its interior, allowing the capillary tube to enter sliding rod 7 more accurately. When inner rod 6 moves away from fixed rod 5, guide plate 1 35 can move downward. The downward movement of guide plate 1 35 pushes connecting rod 36 to move, which in turn pushes guide plate 2 37 downward, allowing the capillary tube to accurately dock with positioning frame 12. Through the reciprocating motion of inner rod 6, guide plate 1 35 and guide plate 2 37 can perform precise guiding tasks in the loading / unloading stage and the pressing preparation stage, respectively. This forced mechanical guidance ensures that the capillary tube maintains the preset path and posture throughout its entry into sliding rod 7 and final docking with positioning frame 12, effectively eliminating assembly problems caused by positional deviations and significantly improving the success rate of pressing.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] 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 alterations 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. A four-way valve capillary press-fitting device, comprising a workbench (1), characterized in that, The pressing equipment includes: A fixed platform (2) is fixedly installed on the bottom of the inner wall of the workbench (1). A placement platform (3) is slidably installed on the inner wall of the fixed platform (2). A placement groove is opened on the top of the placement platform (3). A four-way valve is placed on the inner wall of the placement groove. The pneumatic pressure rod (4) is fixedly installed on the top of the inner wall of the workbench (1), and the four-way valve has an insertion hole on the side near the pneumatic pressure rod (4); A fixed rod (5) is fixedly installed on the inner wall of the workbench (1). An inner rod (6) is slidably installed on the inner wall of the fixed rod (5). A sliding rod (7) is slidably installed on the inner wall of the inner rod (6). A fixed frame (8) is fixedly installed on the inner wall of the workbench (1). A square groove is provided on the side of the workbench (1) near the fixed frame (8). The fixed frame (8) is in contact with the inner wall of the square groove. A sliding groove is provided on the surface of the fixed frame (8). A capillary tube slides on the inner wall of the sliding groove. An auxiliary device for making the four-way valve easy to remove is installed on the inner wall of the workbench (1); A pusher device for quickly aligning the capillary tube with the four-way valve is installed on the inner wall of the worktable (1); A guide device for accurately inserting a capillary tube into a four-way valve is provided on the inner wall of the workbench (1).

2. The four-way valve capillary press-fitting equipment according to claim 1, characterized in that: The auxiliary device includes a telescopic rod (11), a positioning frame (12), a sliding frame (13), a sliding buckle (14), and a fixing key (19). The fixed end of the telescopic rod (11) is fixedly installed on the inner wall of the placement platform (3). The positioning frame (12) is fixedly installed on the top of the movable end of the telescopic rod (11). A through groove is provided on the surface of the positioning frame (12). The sliding frame (13) is slidably installed on the inner wall of the positioning frame (12). The sliding buckle (14) is slidably installed on the inner wall of the positioning frame (12). The fixing key (19) is slidably installed on the top of the placement platform (3). A slot is provided on the side of the fixed end of the telescopic rod (11) near the fixing key (19). A fixing groove is provided on the side of the movable end of the telescopic rod (11) near the fixing key (19). The shape of the fixing groove matches the slot.

3. The four-way valve capillary press-fitting equipment according to claim 2, characterized in that: The auxiliary device also includes a sliding pin (9), a sliding baffle (10), a connecting rod (15), a sliding push rod (16), a lifting plate (17), and a pressure rod (18). The sliding pin (9) slides through the surface of the fixed platform (2), the sliding baffle (10) is slidably installed on the inner wall of the fixed platform (2), and a circular groove is provided on the side of the placement platform (3) near the sliding pin (9). The shape of the sliding pin (9) matches the circular groove, and the sliding push rod (16) is slidably installed on the surface of the placement platform (3). One end of the connecting rod (15) is rotatably connected to the sliding push rod (16), and the other end of the connecting rod (15) is rotatably connected to the positioning frame (12). The lifting plate (17) is slidably installed at the bottom of the inner wall of the placement slot, and the pressure rod (18) is slidably installed on the inner wall of the placement platform (3). The side of the sliding push rod (16) near the sliding pin (9) is set as an inclined surface, the side of the pressure rod (18) near the fixed platform (2) is set as an inclined surface, and the side of the pressure rod (18) near the lifting plate (17) is set as an inclined surface.

4. The four-way valve capillary press-fitting equipment according to claim 2, characterized in that: The sliding frame (13) is inclined on the side near the sliding buckle (14). An elastic element is provided between the sliding buckle (14) and the positioning frame (12). An elastic element is provided between the sliding baffle (10) and the placement platform (3). An elastic element is provided between the fixing key (19) and the placement platform (3).

5. The four-way valve capillary press-fitting equipment according to claim 1, characterized in that: The pushing device includes a tooth 1 (21), a double-headed gear (22), a tooth 2 (23), a vertical plate (24), a push plate (25), a sliding plate (26), and a stop plate (27). The double-headed gear (22) is rotatably mounted on the inner wall of the fixed platform (2). The tooth 1 (21) is fixedly mounted on the side of the placement platform (3) near the double-headed gear (22). The tooth 2 (23) is fixedly mounted on the side of the inner rod (6) near the double-headed gear (22). The vertical plate (24) is fixedly mounted on the side of the sliding rod (7) near the fixed frame (8). The sliding plate (26) is slidably mounted on the inner wall of the fixed frame (8). The push plate (25) is fixedly mounted on the bottom of the sliding plate (26). The stop plate (27) is slidably mounted on the inner wall of the fixed frame (8).

6. The four-way valve capillary press-fitting equipment according to claim 5, characterized in that: The pushing device also includes a pushing rod (28) and a clamping plate (29). The pushing rod (28) is slidably installed on the inner wall of the sliding rod (7), and the clamping plate (29) is slidably installed on the inner wall of the sliding rod (7). The pushing rod (28) and the clamping plate (29) are fixedly connected. The side of the pushing rod (28) near the inner rod (6) is set as an inclined surface, and the top of the clamping plate (29) is set as an inclined surface. An elastic element is provided between the pushing rod (28) and the sliding rod (7).

7. The four-way valve capillary press-fitting equipment according to claim 5, characterized in that: An elastic element is provided between the sliding plate (26) and the fixed frame (8). The side of the sliding plate (26) near the baffle plate (27) is set as an inclined surface. The tooth (23) meshes with the double-headed gear (22).

8. The four-way valve capillary press-fitting equipment according to claim 1, characterized in that: The guiding device includes a sliding rod one (31), a connecting rod two (32), a sliding rod two (33), a connecting rod three (34), a guide plate one (35), a connecting rod (36), and a guide plate two (37). The sliding rod one (31) is slidably mounted on the top of the inner rod (6), the sliding rod two (33) is slidably mounted on the top of the inner rod (6), one end of the connecting rod two (32) is rotatably connected to the sliding rod one (31), and the other end of the connecting rod two (32) is rotatably connected to the sliding rod two (33). The guide plate one (35) is rotatably connected to the inner rod two (33). The connecting rod (34) is slidably installed on the inner wall of the sliding rod (7). One end of the connecting rod (34) is rotatably connected to the sliding rod (33), and the other end of the connecting rod (34) is rotatably connected to the guide plate (35). The guide plate (2) is slidably installed on the inner wall of the sliding rod (7) on the side close to the placement platform (3). The connecting rod (36) is slidably installed on the inner wall of the sliding rod (7). One end of the connecting rod (36) is fixedly connected to the guide plate (35), and the other end of the connecting rod (36) is fixedly connected to the guide plate (2) (37).

9. The four-way valve capillary press-fitting equipment according to claim 8, characterized in that: An elastic element six is ​​provided between the sliding rod one (31) and the inner rod (6). The inner walls of the guide plate one (35) and the guide plate two (37) are both provided with sliding grooves. The shape of the sliding groove matches the capillary tube. An elastic element seven is provided between the guide plate one (35) and the sliding rod (7).

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