Pneumatic cover pressing jig for SMB 90-degree elbow
By using pneumatic pressing and positioning components, combined with electric slide rails and vacuum suction devices, the problems of inconsistent pressing depth and uneven force during the pressing of SMB90° elbow connector end caps were solved, achieving stable pressing of end caps and efficient mass production.
Patent Information
- Application Number
- CN202610481615.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-13
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, the pressing process of the SMB90° elbow connector end cap relies on manual operation, which leads to inconsistent pressing depth and uneven force, affecting the consistency and stability of product quality.
By employing pneumatic pressing and positioning components, combined with electric slide rails and vacuum suction devices, precise positioning and uniform pressing of the end caps are achieved, ensuring the stability and consistency of the pressing process.
It improves the firmness and depth consistency of end cap pressing, reduces the labor intensity of operators, and enhances production efficiency and product consistency, making it suitable for mass production.
Smart Images

Figure CN122007845A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of 3C electronics and hardware / plastic accessories technology, specifically to a pneumatic pressure cap fixture for SMB 90° elbows. Background Technology
[0002] SMB 90° elbow connectors are widely used in RF communication equipment, testing instruments, and various electronic products. Their compact structure requires high precision in the end cap pressing. During assembly, the end caps need to be accurately pressed into their corresponding positions on the connector body to ensure electrical performance and structural stability. Therefore, in manufacturing, specialized tooling or equipment is typically used for end cap pressing to improve assembly efficiency and ensure product consistency. In this field, the assembly of SMB elbow products is gradually shifting from simple manual operation to semi-mechanized assembly.
[0003] In existing technologies, a manual crimping machine combined with a simple positioning fixture is typically used to complete the end cap pressing operation. Its basic structure includes a frame, a manual pressing lever mechanism, and a product placement platform. During operation, the operator places the SMB 90° elbow to be assembled into the fixture, uses the positioning structure to initially limit the product's position, then places the end cap in the corresponding position. The lever transmission mechanism of the manual crimping machine drives the pressing head downwards, applying pressure to the end cap and pressing it into the product to complete the assembly. This type of structure relies on mechanical transmission to amplify force, and is characterized by its simple structure and low cost, making it somewhat applicable in small-batch production.
[0004] However, the aforementioned existing technology still has certain shortcomings in practical use. During the pressing process, it primarily relies on operators manually operating the press machine, controlling the pressing position based on experience and feel. Due to differences in operating habits and force applied by different operators, it is difficult to maintain a stable and consistent downward pressure and pressing stroke during continuous operation, easily leading to deviations in the pressing depth of the end cap. Furthermore, uneven force during pressing may cause the end cap to tilt slightly or experience excessive localized force, thus affecting its fit with the product body. These issues are more pronounced in mass production, making it difficult to effectively guarantee the consistency and stability of product assembly quality, and consequently impacting subsequent performance. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides an SMB90° elbow pneumatic cap pressing fixture, which solves the problems of inconsistent pressing depth and uneven product stress leading to unstable pressing quality caused by relying on manual pressing machines to press end caps and controlling the pressing position by human touch.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an SMB 90° elbow pneumatic pressure cap fixture, comprising a base plate, a body fixedly connected to the outer side of the base plate, and a pressing assembly fixedly connected inside the body. The pressing assembly is used to apply stable downward pressure to the end cap after it is placed in position, thereby ensuring a firm assembly between the end cap and the product and improving the product assembly quality and stability. A feeder is fixedly connected to the top of the base plate, and a positioning assembly is fixedly connected to the outer side of the base plate. The positioning assembly is used to support and accurately position the product to be assembled before the assembly operation begins.
[0007] Preferably, the pressing assembly includes a first cylinder, which is fixedly connected to the inner side of the machine body. A fixing plate is fixedly connected to the outer side of the first cylinder. A second fixing block is fixedly connected to the output end of the first cylinder. A connecting plate is fixedly connected to the inner side of the machine body. A second limiting rod is fixedly connected to the outer side of the fixing plate. A second cylinder is fixedly connected to the bottom of the second fixing block. A limiting block is fixedly connected to the outer side of the output end of the second cylinder.
[0008] Preferably, the positioning component includes a first fixing block, which is fixedly connected to the top of the base plate. An electric slide rail is fixedly connected to the outside of the first fixing block, and a slider is slidably connected to the outside of the electric slide rail. A loading platform is fixedly connected to the outside of the slider, and a connecting block is fixedly connected to the bottom of the loading platform. The connecting block is slidably connected to the inside of the first fixing block, and a sliding block is fixedly connected to the bottom of the connecting block. A first limiting rod is slidably connected to the outside of the sliding block, and both ends of the first limiting rod are fixedly connected to the inside of the first fixing block.
[0009] Preferably, a display screen is fixedly connected to the outside of the machine body, and a negative pressure device is fixedly connected to the outside of the machine body.
[0010] Preferably, a start button and an emergency stop button are fixedly connected to the outside of the machine body.
[0011] Preferably, a reset button is fixedly connected to the outside of the machine body, and a cover plate is fixedly connected to the outside of the machine body.
[0012] Preferably, a motor is fixedly connected to the outside of the machine body, and a cooling fan is fixedly connected to the output end of the motor.
[0013] Preferably, a vacuum pump is fixedly connected to the outer side of the machine body, and a vacuum suction device is fixedly connected to the inner side of the machine body.
[0014] Preferably, a feeding platform is provided on the outside of the feeder, and a positioning block is fixedly connected to the outside of the first fixing block.
[0015] Preferably, the fixing plate is fixedly connected to the inner side of the machine body, and the second fixing block is slidably connected to the outer side of the second limiting rod.
[0016] This invention provides a pneumatic pressure cap fixture for SMB 90° elbows. It has the following beneficial effects: 1. The present invention uses a pressing assembly consisting of a first cylinder and a second cylinder, combined with the guiding and supporting functions of the second limiting rod and the connecting plate, to make the movement of the pressing head more stable during the pressing process. This allows for the application of uniform and controllable downward pressure to the end cap, effectively avoiding the pressing deviation problem caused by uneven force during traditional manual pressing. This improves the firmness of the end cap pressing and the consistency of the pressing depth, thereby enhancing the overall assembly quality and stability.
[0017] 2. By setting up a positioning component and an electric slide rail structure, the present invention can stably support and accurately position the SMB90° elbow during the product loading process. The slider drives the loading platform to move smoothly, and the first limit rod guides and limits the movement, effectively preventing the product from deviating or shaking during the movement and positioning process. This improves the positional accuracy of the product when it enters the pressing station and provides a reliable foundation for subsequent pressing operations.
[0018] 3. This invention achieves orderly feeding and precise placement of end caps by setting up a cooperative structure of feeder and vacuum suction device, reducing manual intervention. At the same time, in conjunction with the pneumatic control and operation buttons of the whole machine, it realizes continuous operation of the pressing process, which not only reduces the labor intensity of operators, but also improves production efficiency and product consistency, and is suitable for mass production needs. Attached Figure Description
[0019] Figure 1 This is a perspective view of the present invention; Figure 2 A schematic diagram illustrating the structure of the cover plate of the present invention; Figure 3 The schematic diagram of the motor structure of the present invention is shown in the figure. Figure 4 A schematic diagram illustrating the structure of the display screen of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 A schematic diagram illustrating the structure of the feeder of the present invention is provided. Figure 7 A schematic diagram illustrating the structure of the pressing assembly of the present invention; Figure 8 A schematic diagram illustrating the structure of the positioning component of the present invention.
[0020] The components include: 1. Base plate; 2. Machine body; 3. Feeder; 4. Display screen; 5. Positioning assembly; 501. First fixing block; 502. Electric slide rail; 503. Slider; 504. Loading platform; 505. Connecting block; 506. Sliding block; 507. First limit rod; 6. Pressing assembly; 601. First cylinder; 602. Fixing plate; 603. Second fixing block; 604. Second limit rod; 605. Second cylinder; 606. Limiting block; 607. Connecting plate; 7. Negative pressure device; 8. Start button; 9. Emergency stop button; 10. Reset button; 11. Cover plate; 12. Motor; 13. Vacuum pump; 14. Vacuum suction device; 15. Feeding platform; 16. Cooling fan; 17. Positioning block. Detailed Implementation
[0021] The technical solutions in 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.
[0022] Please see the appendix Figure 1 - Appendix Figure 8 This invention provides a pneumatic pressure cap fixture for SMB 90° elbows, including a base plate 1. The base plate 1 serves as the basic load-bearing structure of the entire machine, supporting components such as the machine body 2, feeder 3, and positioning component 5, ensuring the installation stability between the various structures. The machine body 2 is fixedly connected to the outside of the base plate 1, and a pressing component 6 is fixedly connected to the inside of the machine body 2. The pressing component 6 is used to apply stable downward pressure to the end cap after it is placed in place, thereby ensuring a firm assembly between the end cap and the product, improving the product assembly quality and stability. The feeder 3 is fixedly connected to the top of the base plate 1, and the positioning component 5 is fixedly connected to the outside of the base plate 1. The positioning component 5 is used to support and accurately position the product to be assembled before the assembly operation begins.
[0023] Specifically, the base plate 1 serves as a robust foundation platform, ensuring the overall stability of the equipment's operation; the machine body 2 forms the core main working space; the feeder 3 is responsible for the continuous and efficient automatic conveying of assembly materials; the positioning component 5 pre-positions the product with stable support and high-precision spatial positioning, completely eliminating positional deviations; and the pressing component 6 ultimately outputs stable and powerful downward pressure, driving the end cap to fit tightly with the product and form a firm shape, significantly improving the overall assembly quality and yield.
[0024] Please see the appendix Figure 6 - Appendix Figure 7In a preferred embodiment of the present invention, the pressing assembly 6 includes a first cylinder 601, which drives the second fixing block 603 to adjust its position, thereby adjusting the lateral or initial position of the pressing mechanism. The first cylinder 601 is fixedly connected to the inner side of the machine body 2, and a fixing plate 602 is fixedly connected to the outer side of the first cylinder 601. The fixing plate 602 is used to install and fix the first cylinder 601, and also serves as a support structure for the second limiting rod 604, improving the overall structural stability. The output end of the first cylinder 601 is fixedly connected to the second fixing block 603. A connecting plate 607 is fixedly connected to the inner side of the machine body 2, and a second limiting rod 604 is fixedly connected to the outer side of the fixing plate 602. The second limiting rod 604 is used to guide and limit the movement of the second fixing block 603, ensuring that it moves stably along the set direction and preventing deviation. The bottom of the second fixing block 603 is fixedly connected to a second cylinder 605, and a limiting block 606 is fixedly connected to the outer side of the output end of the second cylinder 605.
[0025] Specifically, the first cylinder 601, as the key lateral drive hub, is responsible for precisely adjusting the initial horizontal position of the pressing mechanism; the fixed plate 602 and the connecting plate 607 work together to construct a high-strength support base, providing a robust and stable load-bearing environment for the core components; the second limit rod 604 plays an extremely precise guiding and constraining role, strictly regulating the linear movement trajectory of the second fixed block 603, and completely eliminating positional deviation during operation; the second fixed block 603, as the core moving carrier, smoothly receives and transmits spatial displacement power; the second cylinder 605 acts as a powerful vertical actuator, outputting stable downward pressure; and finally, in conjunction with the limit block 606, it achieves high-precision motion stopping, comprehensively ensuring the efficiency and reliability of the pressing operation.
[0026] Please see the appendix Figure 4 - Appendix Figure 8In a preferred embodiment of the present invention, the positioning component 5 includes a first fixing block 501, which serves as the mounting base for the positioning component 5 and provides support for the electric slide rail 502 and the internal sliding structure. The first fixing block 501 is fixedly connected to the top of the base plate 1. The electric slide rail 502 is fixedly connected to the outside of the first fixing block 501. A slider 503 is slidably connected to the outside of the electric slide rail 502. The slider 503 is used to support the loading platform 504 and moves with the electric slide rail 502 to realize the conveying of products. A loading platform 504 is fixedly connected, and a connecting block 505 is fixedly connected to the bottom of the loading platform 504. The connecting block 505 is slidably connected to the inner side of the first fixed block 501. A sliding block 506 is fixedly connected to the bottom of the connecting block 505. The sliding block 506 is used to slide in cooperation with the first limiting rod 507 to guide and support the connecting block 505, thereby ensuring the stability of the loading platform 504 during movement. The first limiting rod 507 is slidably connected to the outer side of the sliding block 506. Both ends of the first limiting rod 507 are fixedly connected to the inner side of the first fixed block 501.
[0027] Specifically, the first fixed block 501 constructs an extremely stable underlying support base, providing a reliable support environment for the entire positioning system; the electric slide rail 502 serves as a high-precision linear drive hub, continuously outputting efficient and smooth transfer power; the slider 503 supports the loading platform 504 in coordinated operation, accurately carrying the products to be assembled and efficiently performing automated spatial conveying tasks; the connecting block 505 serves as a rigid transmission hub, effectively transmitting the upper load; the sliding block 506 closely cooperates with the first limit rod 507, playing a rigorous and precise linear guiding and constraint function, completely eliminating oscillations and trajectory deviations during operation, and comprehensively ensuring the ultimate stability and precise placement of material conveying.
[0028] Please see the appendix Figure 1 - Appendix Figure 8In a preferred embodiment of the present invention, a display screen 4 is fixedly connected to the outside of the machine body 2. The display screen 4 is used to visually display the operating status of the equipment and can be used for parameter setting and operation command input. A negative pressure device 7 is fixedly connected to the outside of the machine body 2. The negative pressure device 7 is used to generate a negative pressure air source to provide stable adsorption power for the vacuum suction device 14, thereby realizing the adsorption and handling of the end cap. A start button 8 is fixedly connected to the outside of the machine body 2. The start button 8 is used to send an operation command to the equipment control system. After the operator completes the loading, pressing the start button 8 triggers the equipment to enter the automatic pressing process. An emergency stop button 9 and a reset button 10 are fixedly connected to the outside of the machine body 2. A cover plate 11 is fixedly connected to the side of the machine body 2. A motor 12 is fixedly connected to the outside of the machine body 2. The motor 12 is used to provide power for the auxiliary system of the equipment, such as driving the cooling fan 16 or other auxiliary mechanisms. The output end of the motor 12 is fixedly connected to the cooling fan 16. A vacuum pump 13 is fixedly connected to the outside of the machine body 2. A vacuum suction device 14 is fixedly connected to the inside of the machine body 2. A feeding platform 15 is provided on the outside of the feeder 3. The feeding platform 15 is used to receive the end caps output by the feeder 3 and to provide a stable material picking position for the vacuum suction device 14. A positioning block 17 is fixedly connected to the outside of the first fixing block 501. A fixing plate 602 is fixedly connected to the inside of the machine body 2. A second fixing block 603 is slidably connected to the outside of the second limiting rod 604.
[0029] Specifically, the display screen 4 serves as the central hub for human-machine interaction, intuitively presenting the operating status and efficiently processing commands; the start button 8, emergency stop button 9, and reset button 10 work together to construct a highly reliable safety control circuit, comprehensively ensuring convenient start-up and shutdown and fault protection of the operation process; the negative pressure device 7 and vacuum pump 13 jointly output a powerful air source, enabling the vacuum suction device 14 to complete the precise adsorption and non-destructive handling of the end cap; the feeding platform 15 stably receives materials, constructing a standard material picking station; the motor 12 drives the cooling fan 16 to accelerate heat dissipation, supplemented by the tight protection of the cover plate 11, improving the durability of the entire machine; the positioning block 17 strengthens the limit reference, combined with the rigid guiding system of the fixed plate 602, the second fixed block 603, and the second limit rod 604, thoroughly ensuring the ultimate smoothness and precision of the high-frequency operation of the core components.
[0030] Working principle: When an SMB90° elbow pneumatic pressure cap fixture is needed, the operator first places the product to be pressed on the loading platform 504. At this time, the electric slide rail 502 drives the slider 503 to move the loading platform 504 and the product above it along the set direction. At the same time, the connecting block 505 and the sliding block 506 cooperate and slide inside the first fixed block 501, and maintain stable movement under the guidance and limiting action of the first limit rod 507, thereby ensuring the accuracy of the product during the movement and positioning process. The positioning block 17 positions the product, so that the product moves to the pressing position. Subsequently, the feeder 3 feeds the end cap, and the vacuum pump 13 uses the vacuum suction device 14 to adsorb the end cap and place it in the corresponding installation position of the product. After the end cap is placed, the pressing assembly 6 starts to work. The first cylinder 601 drives the second fixing block 603 to move along the direction of the second limit rod 604 to adjust its lateral position. At the same time, the second cylinder 605 moves downward and achieves stable downward pressing under the support of the connecting plate 607 and the machine body 2. The output end of the second cylinder 605 slides in the limit block 606 to apply a pressing force to the end cap, pressing the end cap into the product to complete the assembly. After the pressing reaches the set stroke, the cylinder returns, the pressing component 6 resets, and the loading platform 504 returns to the initial loading position under the drive of the electric slide rail 502. The operator takes out the product that has been pressed and places a new product to be processed. The equipment enters the next cycle of operation under the control of the start button 8, thereby realizing the stable pressing operation of the product.
[0031] 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 pneumatic pressure cap fixture for SMB 90° elbows, comprising a base plate (1), characterized in that, The base plate (1) is fixedly connected to the outer side of the body (2), and the body (2) is fixedly connected to the inside of the pressing component (6). The pressing component (6) is used to apply stable downward pressure to the end cap after it is placed in place, thereby ensuring that the end cap and the product are firmly assembled and improving the product assembly quality and stability. The top of the base plate (1) is fixedly connected to the feeder (3), and the outer side of the base plate (1) is fixedly connected to the positioning component (5). The positioning component (5) is used to carry and accurately position the product to be assembled before the assembly operation begins.
2. The SMB90° elbow pneumatic pressure cap fixture according to claim 1, characterized in that, The pressing assembly (6) includes a first cylinder (601), which is fixedly connected to the inner side of the machine body (2). A fixing plate (602) is fixedly connected to the outer side of the first cylinder (601). A second fixing block (603) is fixedly connected to the output end of the first cylinder (601). A connecting plate (607) is fixedly connected to the inner side of the machine body (2). A second limiting rod (604) is fixedly connected to the outer side of the fixing plate (602). A second cylinder (605) is fixedly connected to the bottom of the second fixing block (603). A limiting block (606) is fixedly connected to the outer side of the output end of the second cylinder (605).
3. The SMB 90° elbow pneumatic pressure cap fixture according to claim 1, characterized in that, The positioning component (5) includes a first fixing block (501), which is fixedly connected to the top of the base plate (1). An electric slide rail (502) is fixedly connected to the outside of the first fixing block (501). A slider (503) is slidably connected to the outside of the electric slide rail (502). A loading platform (504) is fixedly connected to the outside of the slider (503). A connecting block (505) is fixedly connected to the bottom of the loading platform (504). The connecting block (505) is slidably connected to the inside of the first fixing block (501). A sliding block (506) is fixedly connected to the bottom of the connecting block (505). A first limiting rod (507) is slidably connected to the outside of the sliding block (506). Both ends of the first limiting rod (507) are fixedly connected to the inside of the first fixing block (501).
4. The SMB 90° elbow pneumatic pressure cap fixture according to claim 1, characterized in that, A display screen (4) is fixedly connected to the outside of the body (2), and a negative pressure device (7) is fixedly connected to the outside of the body (2).
5. The SMB 90° elbow pneumatic pressure cap fixture according to claim 1, characterized in that, A start button (8) is fixedly connected to the outside of the fuselage (2), and an emergency stop button (9) is fixedly connected to the outside of the fuselage (2).
6. The SMB 90° elbow pneumatic pressure cap fixture according to claim 1, characterized in that, A reset button (10) is fixedly connected to the outside of the body (2), and a cover plate (11) is fixedly connected to the outside of the body (2).
7. The SMB90° elbow pneumatic pressure cap fixture according to claim 1, characterized in that, A motor (12) is fixedly connected to the outside of the body (2), and a cooling fan (16) is fixedly connected to the output end of the motor (12).
8. The SMB 90° elbow pneumatic pressure cap fixture according to claim 1, characterized in that, A vacuum pump (13) is fixedly connected to the outside of the body (2), and a vacuum suction device (14) is fixedly connected to the inside of the body (2).
9. A pneumatic pressure cap fixture for an SMB 90° elbow according to claim 3, characterized in that, A feeding platform (15) is provided on the outside of the feeder (3), and a positioning block (17) is fixedly connected to the outside of the first fixing block (501).
10. A pneumatic pressure cap fixture for an SMB 90° elbow according to claim 2, characterized in that, The fixing plate (602) is fixedly connected to the inner side of the body (2), and the second fixing block (603) is slidably connected to the outer side of the second limiting rod (604).