A metal shell processing pneumatic top post
Patent Information
- Application Number
- CN202522310845.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0002]在金属壳加工过程中，气动顶柱的锁止与解锁功能直接影响加工效率与精度，当前金属壳加工所用气动顶柱的锁止机构，多采用传统销钉插合或电磁锁止结构，存在显著缺陷：销钉插合式锁止依赖机械插拔动作，响应速度慢，且销钉与孔位长期磨损后易出现卡滞，导致锁止或解锁失效，中断加工流程，电磁锁止结构虽响应较快，但受金属加工环境中油污、粉尘影响大，易出现电路故障，且锁止力度受电磁强度限制，难以承受加工振动带来的外力，顶柱易发生位移，影响金属壳加工尺寸精度
[0011]本实用新型的有益效果：通过气缸驱动轴杆带动锁止公槽与锁止球、锁止母槽配合，实现气动锁止与解锁，锁止时锁止球精准卡合限位顶柱体，解锁时借助解锁槽快速释放锁止球，响应迅速且锁止稳定，有效避免传统锁止结构卡滞、失效问题；同时结合弹簧与限位轴、限位槽的协同作用，既能让顶柱体根据金属壳厚度自适应调整伸出量，又能限制顶柱体行程与防旋转，确保顶柱体始终与金属壳紧密稳定接触，显著提升金属壳加工效率与精度，适配不同规格金属壳加工需求，降低设备故障与工件损伤风险。
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Figure CN224779988U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal shell processing technology, and in particular to a pneumatic top column for metal shell processing. Background Technology
[0002] In the metal shell machining process, the locking and unlocking functions of pneumatic ejectors directly affect machining efficiency and accuracy. Currently, the locking mechanisms of pneumatic ejectors used in metal shell machining mostly adopt traditional pin-fitting or electromagnetic locking structures, which have significant drawbacks: pin-fitting locking relies on mechanical insertion and removal actions, resulting in slow response speed, and the pins and holes are prone to jamming after long-term wear, leading to locking or unlocking failure and interrupting the machining process. Although electromagnetic locking structures have a faster response, they are greatly affected by oil and dust in the metal processing environment, making them prone to circuit failure. Furthermore, the locking force is limited by the electromagnetic strength, making it difficult to withstand the external forces brought about by machining vibrations, and the ejector is prone to displacement, affecting the dimensional accuracy of the metal shell machining. Utility Model Content
[0003] To address the technical problems existing in the background art, this utility model proposes a pneumatic top column for metal shell processing.
[0004] This utility model proposes a pneumatic top column for metal shell machining, including a base metal shell machining, a cylinder metal shell machining on the side of the base metal shell machining, a piston rod of the cylinder metal shell machining connected to a shaft metal shell machining, a locking male groove metal shell machining on the side of the shaft metal shell machining, the locking male groove metal shell machining including a locking inclined surface metal shell machining and an unlocking groove metal shell machining connected together, a top column metal shell machining movably disposed inside the base metal shell machining, a locking female groove metal shell machining on the side of the top column metal shell machining, and a locking ball metal shell machining movably disposed inside the base metal shell machining, the locking ball metal shell machining being located between the locking male groove metal shell machining and the locking female groove metal shell machining.
[0005] Furthermore, the interior of the metal shell of the seat body is provided with a first channel metal shell processing, a ball groove metal shell processing, and a second channel metal shell processing, which are interconnected.
[0006] Furthermore, the machining of the shaft metal shell, the machining of the top column metal shell, and the machining of the locking ball metal shell correspond to the internal activities of the machining of the first channel metal shell, the machining of the second channel metal shell, and the machining of the ball groove metal shell.
[0007] Furthermore, the locking bevel metal shell is machined into a curved groove structure, and the unlocking groove metal shell is machined at an angle toward the locking bevel metal shell to gradually shorten the distance between it and the locking ball metal shell.
[0008] Furthermore, the bottom of the second channel metal shell is symmetrically provided with a limiting groove metal shell along its length direction, and the bottom of the top column metal shell is provided with a shaft hole metal shell, and a limiting shaft metal shell is fixed inside the shaft hole metal shell, and the two ends of the limiting shaft metal shell slide inside the limiting groove metal shell.
[0009] Furthermore, the second channel metal shell processing is internally provided with spring metal shell processing, which abuts against the top column metal shell processing, so as to adaptively adjust the protrusion of the top column metal shell processing according to the thickness of the product.
[0010] Furthermore, the locking female groove metal shell machining is inclined toward the bottom end of the top column metal shell machining, and a stepped groove is provided between the bottom end of the locking female groove metal shell machining and the top column metal shell machining to prevent overstepping.
[0011] The beneficial effects of this utility model are as follows: By driving the cylinder shaft to engage the locking male groove with the locking ball and locking female groove, pneumatic locking and unlocking are achieved. When locking, the locking ball precisely engages with the limiting top column, and when unlocking, the locking ball is quickly released with the help of the unlocking groove. The response is rapid and the locking is stable, effectively avoiding the jamming and failure problems of traditional locking structures. At the same time, combined with the synergistic effect of the spring, the limiting shaft, and the limiting groove, the top column can adaptively adjust its extension according to the thickness of the metal shell, and the stroke of the top column can be limited and rotation prevented, ensuring that the top column is always in close and stable contact with the metal shell. This significantly improves the processing efficiency and accuracy of the metal shell, adapts to the processing needs of metal shells of different specifications, and reduces the risk of equipment failure and workpiece damage. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the disassembled structure of this utility model; Figure 2 This is a top view of the central shaft of this utility model; Figure 3 This is a schematic diagram of the top column structure in this utility model; Figure 4 This is a front view of the top column in this utility model; Figure 5 This is a transverse half-sectional view of the base body of this utility model; Figure 6 This is a structural schematic diagram of the base of the present invention from the bottom view. Figure 7 This is a vertical half-sectional view of the base body of this utility model; Figure 8 This is a schematic diagram of the assembly structure of this utility model; Figure 9 This is a vertical half-sectional view of the assembled version of this utility model; Figure 10 This is a cross-sectional view of the top column in the locked state in this utility model; Figure 11 This is a cross-sectional view of the top column in the unlocked state in this utility model.
[0013] In the diagram: 1. Base; 11. First channel; 12. Ball groove; 13. Second channel; 14. Limiting groove; 2. Cylinder; 3. Shaft; 4. Locking male groove; 41. Locking inclined surface; 42. Unlocking groove; 5. Top column; 51. Shaft hole; 6. Locking female groove; 7. Locking ball; 8. Limiting shaft; 9. Spring. Detailed Implementation
[0014] Reference Figure 1-11 The present invention proposes a metal shell pneumatic top column, including a base 1, on which a cylinder 2 is fixedly installed. The cylinder 2 serves as a power output source, and its piston rod end is rigidly connected to the shaft 3. When the cylinder 2 is ventilated, the extension and retraction of the piston rod can directly drive the shaft 3 to reciprocate linearly in the horizontal direction, providing a power basis for subsequent locking and unlocking actions. The side of the shaft 3 is provided with a locking male groove 4, which is composed of a locking inclined surface 41 and an unlocking groove 42 connected to each other. The locking inclined surface 41 is designed as a curved groove structure to provide space for the locking ball 7 to move away from the locking female groove (i.e., unlocking). The unlocking groove 42 is inclined towards the locking inclined surface 41. As the shaft 3 moves, the distance between the unlocking groove 42 and the locking ball 7 will gradually shorten. Through this inclined design, the locking ball 7 can be brought closer to the locking female groove 6 and eventually abut against the locking female groove 6, thereby locking the top column. Inside the base 1, a top column 5 is vertically movable, with its top in stable contact with the surface of the metal shell. A locking groove 6 is provided on the side of the top column 5 corresponding to the position of the locking ball 7. The locking groove 6 is inclined toward the bottom of the top column 5, and a stepped groove is provided between the bottom of the locking groove 6 and the top column 5. This stepped groove can constrain the position of the locking ball 7. During locking, the locking ball 7 disengages from the locking groove 6.
[0015] Inside the seat 1, a locking ball 7 is also movably installed. The locking ball 7 is located between the locking male groove 4 and the locking female groove 6. It is an intermediate transmission component connecting the shaft 3 and the top column 5, realizing the locking and unlocking functions. When the shaft 3 moves under the drive of the cylinder 2, the locking slope 41 of the locking male groove 4 will squeeze the locking ball 7, pushing the locking ball 7 towards the locking female groove 6, and finally abutting against the locking female groove 6. Through the locking action of the locking ball 7 and the locking female groove 6, the vertical displacement of the top column 5 is restricted, realizing the locking of the top column 5 (as shown in the attached figure). Figure 10As shown in the attached diagram, when the shaft 3 moves in the reverse direction and the unlocking groove 42 gradually approaches the locking ball 7, the squeezing force on the locking ball 7 disappears, allowing it to enter the unlocking groove 42, releasing the restriction on the top column 5, and completing the unlocking process (as shown in the attached diagram). Figure 11 (as shown) To achieve orderly assembly and motion guidance of various components, a first channel 11, a ball groove 12, and a second channel 13 are respectively provided inside the base 1. The first channel 11, the ball groove 12, and the second channel 13 are interconnected to form a complete component assembly and motion space. The shaft 3 is correspondingly fitted and installed inside the first channel 11. The inner diameter of the first channel 11 matches the outer diameter of the shaft 3, which can accurately guide the reciprocating linear motion of the shaft 3 and prevent the shaft 3 from deviating or shaking during movement. The top column 5 is correspondingly set inside the second channel 13. The second channel 13 provides a stable guide trajectory for the vertical lifting and lowering motion of the top column 5, ensuring that the top column 5 moves smoothly when pushing the metal shell. The locking ball 7 is placed inside the ball groove 12. The size of the ball groove 12 matches the diameter of the locking ball 7, which can both ensure that the locking ball 7 moves in the groove and restrict its displacement in other directions, ensuring that the locking ball 7 always achieves transmission between the locking male groove 4 and the locking female groove 6. At the bottom of the second channel 13, two limiting grooves 14 are symmetrically provided along its length. Correspondingly, a shaft hole 51 is provided through the bottom of the top column 5. A limiting shaft 8 is fixedly installed inside the shaft hole 51. The two ends of the limiting shaft 8 extend into the two limiting grooves 14 respectively, and can slide vertically within the limiting grooves 14. Through the cooperation of the limiting shaft 8 and the limiting grooves 14, the maximum lifting stroke of the top column 5 can be limited, preventing the top column 5 from over-extending or over-retracting due to the elastic force of the spring 9 or external force. At the same time, it can also prevent the top column 5 from rotating during the movement, ensuring the accuracy of the contact position between the top column 5 and the metal shell. Inside the second channel 13, a spring 9 is also installed. One end of the spring 9 abuts against the bottom of the second channel 13, and the other end makes elastic contact with the bottom of the top column 5. The spring 9 has good elastic restoring ability. During the metal shell processing, when there are differences in the thickness of the metal shell, the top column 5 will automatically adjust its extension under the elastic force of the spring 9: if the metal shell is thicker, the top column 5 will be compressed downward by the metal shell, shortening the extension length; if the metal shell is thinner, the spring 9 will release its elastic force, pushing the top column 5 upward, increasing the extension length. Through this adaptive adjustment structure, the top column 5 can always maintain a tight and stable contact with the surface of the metal shell, meeting the processing support requirements of metal shells of different thicknesses and improving the versatility and processing adaptability of the device.
[0016] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A metal-shell machined pneumatic top column, comprising a base (1), characterized in that, A cylinder (2) is installed on the side of the seat (1). The piston rod of the cylinder (2) is connected to a shaft (3). A locking male groove (4) is provided on the side of the shaft (3). The locking male groove (4) includes a locking inclined surface (41) and an unlocking groove (42) connected to each other. A top column (5) is movably arranged inside the seat (1). A locking female groove (6) is provided on the side of the top column (5). A locking ball (7) is also movably arranged inside the seat (1). The locking ball (7) is located between the locking male groove (4) and the locking female groove (6).
2. The pneumatic top column for metal shell machining according to claim 1, characterized in that, The seat (1) has a first channel (11), a ball groove (12), and a second channel (13) respectively, and the first channel (11), the ball groove (12), and the second channel (13) are connected to each other.
3. The pneumatic jack for metal shell machining according to claim 2, characterized in that, The shaft (3), top column (5), and locking ball (7) move within the first channel (11), second channel (13), and ball groove (12), respectively.
4. The pneumatic top column for metal shell machining according to claim 1, characterized in that, The locking ramp (41) is a curved groove structure, and the unlocking groove (42) is inclined toward the locking ramp (41) to gradually shorten the distance between it and the locking ball (7).
5. The pneumatic jack for metal shell machining according to claim 2, characterized in that, The bottom of the second channel (13) is symmetrically provided with a limiting groove (14) along its length direction. The bottom of the top column (5) is provided with a shaft hole (51). A limiting shaft (8) is fixed inside the shaft hole (51). The two ends of the limiting shaft (8) slide inside the limiting groove (14).
6. The pneumatic jack for metal shell machining according to claim 5, characterized in that, The second channel (13) is provided with a spring (9) inside, which abuts against the top column (5) to adaptively adjust the extension of the top column (5) according to the thickness of the product.
7. The pneumatic jack for metal shell machining according to claim 1, characterized in that, The locking groove (6) is inclined toward the bottom end of the top column (5), and a stepped groove is provided between the bottom end of the locking groove (6) and the top column (5) to prevent overrun.