Composite frame and rigid guide rail integrated pneumatic mechanism
By adopting an integrated design of composite frame and rigid guide rail in the pneumatic mechanism, combined with the distance measuring sensor and brake mechanism, the problem of insufficient linear sliding accuracy of the existing pneumatic mechanism is solved, and high-precision sliding in long-distance sliding or vibration environments is achieved.
Patent Information
- Application Number
- CN202510466078.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2025-06-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing pneumatic mechanisms lack accuracy when sliding linearly, especially in long-distance sliding or vibration environments, the single material of the rigid guide rails leads to a decrease in accuracy.
The integrated pneumatic mechanism of composite frame and rigid guide rail is adopted, including a mount seat and support rib plate made of gray cast iron, combined with a frame plate made of steel plate, forming a rigid guide rail with an I-shaped longitudinal section, and is equipped with a distance measuring sensor and a braking mechanism.
It improves the stability and accuracy of the sliding seat left and right movement, enhances vibration resistance and structural stability, and ensures high-precision linear sliding in long-distance sliding or vibration environments.
Smart Images
Figure CN120083753A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a pneumatic mechanism, and more particularly to a pneumatic mechanism integrating a composite frame and a rigid guide rail. Background Art
[0002] A pneumatic mechanism is a mechanism driven by pneumatic power. Compared with a mechanism driven by hydraulic power, it has a faster response, and compared with an electric drive, it has higher safety. When the existing pneumatic mechanism realizes linear sliding, due to factors such as materials, structure, and drive mode, the accuracy of linear sliding is insufficient. Although using a rigid guide rail can improve the smoothness of sliding to a certain extent, thereby improving the accuracy of linear sliding, most of the existing rigid guide rails are made of a single material. When used for long-distance sliding or in a vibrating environment, the accuracy will decrease, thus affecting the actual use, highlighting the deficiencies of the existing technology. Summary of the Invention
[0003] The purpose of the present invention is to provide a pneumatic mechanism integrating a composite frame and a rigid guide rail to solve the technical problem of poor linear sliding accuracy of the existing pneumatic mechanism.
[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A pneumatic mechanism integrating a composite frame and a rigid guide rail includes a mounting base, mounting holes, a rigid guide rail, and an electric control system. The mounting bases are arranged in pairs and correspond to each other left and right. A plurality of mounting holes penetrate through the two mounting bases respectively from left to right. The two mounting bases jointly fix a horizontal rigid guide rail. The rigid guide rail includes a frame plate and support rib plates. The two frame plates are parallel to each other and are cut from steel plates. A plurality of vertical support rib plates are fixed in the middle of the two frame plates. The support rib plates and the mounting bases are both made of gray cast iron. A horizontal telescopic cylinder is fixed to the left part of the rigid guide rail along the horizontal direction from left to right. The right part of the push rod of the telescopic cylinder is fixed with a sliding seat, and a plurality of support seats are inserted into the sliding seat from left to right. Each support seat is fastened to the rigid guide rail through a fastener. The upper and lower parts of the sliding seat are each rotatably connected with a horizontal main support roller, and the front and rear parts are each rotatably connected with a vertical auxiliary support roller. The sliding seat is made of aluminum alloy, and a plurality of vertical fastening bolts are threadedly connected to the upper and lower parts respectively. The main support roller rolls and rubs against one of the adjacent end faces of the two frame plates, and the auxiliary support roller rolls and rubs against the support rib plate. The telescopic cylinder is connected to an external compressed air supply system. A distance measuring sensor is fixed to the rigid guide rail. The distance measuring sensor can measure the change in the left and right displacement of the sliding seat and is electrically connected to the electric control system. The electric control system is externally connected to a power supply.
[0005] On the basis of the above technical solution, a dust-proof component is installed at each of the front and rear parts of the rigid guide rail. The dust-proof component includes a pair of auxiliary support rollers, a belt and a support frame. The two support rollers in each pair of auxiliary support rollers are arranged corresponding to each other left and right, and are rotatably connected to the rigid guide rail in a vertical state. The two pairs of auxiliary support rollers respectively frictionally drive a belt. The two belts are respectively fixed with a support frame that penetrates through the front and rear. The two support frames are respectively fitted and inserted with the two sliding seats. The end faces of the belts adjacent to the two frame plates are in contact. The distance measuring sensor uses laser to measure the distance and is located within the range wrapped by the two belts. The distance measuring sensor can measure the left and right distances of the sliding seat.
[0006] On the basis of the above technical solution, the pneumatic mechanism further includes a braking mechanism. The braking mechanism includes a rubber strip, an insertion block, a permanent magnet, an electromagnet, and an insertion pin. Rubber strips horizontally along the left-right direction are fixed at each of the front and rear parts of the rigid guide rail. Insertion blocks are respectively slidably connected to the front and rear parts of the sliding seat in the front and rear directions. Permanent magnets are respectively fixed to the adjacent end parts of the two insertion blocks. An electromagnet is fixed in the middle of the sliding seat. The electromagnet is electrically connected to the electronic control system. When the electromagnet is energized with currents in different directions, it can respectively magnetically attract and magnetically repel the two permanent magnets, so that the two insertion blocks slide closer to each other and slide away from each other. A plurality of insertion pins are respectively fixed to the opposite end parts of the two insertion blocks. When the two insertion blocks slide away from each other, the insertion pins can respectively be inserted into the rubber strip.
[0007] Compared with the prior art, the present invention has the following advantages: During the left and right movement of the sliding seat of the present invention, the main support roller and the auxiliary support roller respectively roll-friction with the frame plate and the support rib plate, thereby improving the smoothness of the left and right movement of the sliding seat. The use of the mounting seat and the support rib plate made of gray cast iron can improve the anti-vibration performance. The support rib plate and the frame plate made of steel plate form a rigid guide rail with an I-shaped longitudinal section, which can improve the structural stability and load-bearing capacity, and then improve the smoothness of the left and right movement of the sliding seat. The use of the distance measuring sensor can detect the displacement of the sliding seat and improve the accuracy during actual use.
[0008] Using the dust-proof component, the distance measuring sensor within the wrapped range can be protected, reducing the interference of dust, making the measurement effect of the distance measuring sensor more accurate, and improving the accuracy of linear sliding.
[0009] By setting the braking mechanism, when braking is performed when the displacement meets the requirements, the accuracy of linear sliding can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is an axonometric structure schematic diagram of the present invention.
[0011] Figure 2 It is a matching schematic diagram of the sliding seat and the rigid guide rail of the present invention.
[0012] Figure 3 This is a schematic top view structure of the rigid guide rail and belt of the present invention.
[0013] Figure 4 This is a schematic right view structure of the sliding seat and the insertion block of the present invention.
[0014] In the figure: 1. mounting seat, 2. mounting hole, 3. rigid guide rail, 4. frame plate, 5. support rib plate, 6. telescopic cylinder, 7. sliding seat, 8. support seat, 9. main support roller, 10. auxiliary support roller, 11. fastening bolt, 12. distance measuring sensor, 15. auxiliary support roller, 16. belt, 17. support frame, 19. rubber strip, 20. insertion block, 21. permanent magnet, 22. electromagnet, 23. insertion pin. Detailed implementation manners
[0015] The present invention will be further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments.
[0016] As Figures 1-4 shown, a composite frame and rigid guide rail integrated pneumatic mechanism includes a mounting seat 1, a mounting hole 2, a rigid guide rail 3 and an electric control system. The mounting seats 1 are arranged in pairs and correspond to each other left and right. A plurality of mounting holes 2 penetrate through the two mounting seats 1 from left to right respectively. The two mounting seats 1 jointly fix a horizontal rigid guide rail 3. The rigid guide rail 3 includes a frame plate 4 and a support rib plate 5. The two frame plates 4 are parallel to each other and are cut from steel plates. A plurality of vertical support rib plates 5 are fixed in the middle of the two frame plates 4. The support rib plates 5 and the mounting seats 1 are both made of gray cast iron. A horizontal telescopic cylinder 6 is fixed to the left part of the rigid guide rail 3 along the horizontal direction from left to right. The right part of the push rod of the telescopic cylinder 6 is fixed with a sliding seat 7, and a plurality of support seats 8 are inserted into the sliding seat 7 from left to right. Each support seat 8 is fastened to the rigid guide rail 3 through a fastener. The upper and lower parts of the sliding seat 7 are each rotatably connected with a horizontal main support roller 9, and the front and rear parts are each rotatably connected with a vertical auxiliary support roller 10. The sliding seat 7 is made of aluminum alloy, and a plurality of vertical fastening bolts 11 are each threadedly connected to the upper and lower parts of the sliding seat 7. One end surface of the main support roller 9 rolls and rubs against one of the adjacent end surfaces of the two frame plates 4, and the auxiliary support roller 10 rolls and rubs against the support rib plate 5. The telescopic cylinder 6 is connected to an external compressed air supply system. A distance measuring sensor 12 is fixed to the rigid guide rail 3. The distance measuring sensor 12 can measure the change of the left and right displacement of the sliding seat 7 and is electrically connected to the electric control system. The electric control system is externally connected to a power supply. The electric control system is a known prior art, such as a PLC and an industrial computer.
[0017] During use, the mounting base 1 is fixed by passing a fastener (such as a bolt) through the mounting hole 2. Then, according to the usage requirements, the rigid guide rail 3 is placed in a horizontal or vertical posture. By means of an externally connected compressed air supply system, the push rod of the telescopic cylinder 6 is extended and retracted, which can drive the sliding seat 7 to move left and right. During this period, the main support roller 9 and the auxiliary support roller 10 respectively roll-friction with the frame plate 4 and the support rib plate 5, thereby improving the smoothness of the left and right movement of the sliding seat 7. The use of the mounting base 1 and the support rib plate 5 made of gray cast iron can improve the anti-vibration performance. The support rib plate 5 and the frame plate 4 made of steel form a rigid guide rail 3 with an I-shaped longitudinal section, which can improve the structural stability and load-bearing capacity, and then improve the smoothness of the left and right movement of the sliding seat 7. The use of the distance measuring sensor 12 can detect the displacement of the sliding seat 7, improving the accuracy during actual use.
[0018] A dust-proof component is installed at each of the front and rear parts of the rigid guide rail 3. The dust-proof component includes a pair of auxiliary support rollers 15, a belt 16, and a support frame 17. The two support rollers in each pair of auxiliary support rollers 15 are arranged corresponding to each other left and right, and are rotatably connected to the rigid guide rail 3 in a vertical state. The two pairs of auxiliary support rollers 15 respectively frictionally drive the belt 16. The two belts 16 are respectively fixed with a support frame 17 that penetrates through the front and rear. The two support frames 17 are respectively fitted and inserted with the two sliding seats 7. The end faces of the belt 16 adjacent to the two frame plates 4 are in contact. The distance measuring sensor 12 uses laser for distance measurement and is located within the range wrapped by the two belts 16. The distance measuring sensor 12 can measure the left and right distances of the sliding seat 7.
[0019] By using the dust-proof component, when the sliding seat 7 moves left and right, the belt 16 can also rotate accordingly, thereby protecting the distance measuring sensor 12 within the wrapped range, reducing the interference of dust, making the measurement effect of the distance measuring sensor 12 more accurate, and improving the accuracy of linear sliding.
[0020] The pneumatic mechanism further includes a braking mechanism. The braking mechanism includes a rubber strip 19, an insertion block 20, a permanent magnet 21, an electromagnet 22, and an insertion pin 23. A horizontally arranged rubber strip 19 is fixed at each of the front and rear parts of the rigid guide rail 3 in the left-right direction. The front and rear parts of the sliding seat 7 are respectively slidably connected with an insertion block 20. The adjacent end parts of the two insertion blocks 20 are respectively fixed with a permanent magnet 21. An electromagnet 22 is fixed in the middle of the sliding seat 7. The electromagnet 22 is electrically connected to the electric control system. When the electromagnet 22 is energized with currents in different directions, it can respectively magnetically attract and magnetically repel the two permanent magnets 21, so that the two insertion blocks 20 slide close to each other and away from each other. Multiple insertion pins 23 are respectively fixed at the opposite end parts of the two insertion blocks 20. When the two insertion blocks 20 slide away from each other, the insertion pins 23 can respectively be inserted into the rubber strip 19.
[0021] By setting a braking mechanism, when the sliding seat 7 slides, the electromagnet 22 magnetically attracts the permanent magnet 21, the pin 23 moves away from the rubber strip 19, and the displacement data is monitored by the distance measuring sensor 12. When the displacement meets the requirements or emergency braking is required, the electromagnet 22 is controlled to conduct a reverse current, so that the electromagnet 22 and the permanent magnet 21 are magnetically repelled, so that the two plug blocks 20 move away from each other, that is, the pin 23 is inserted into the rubber strip 19, thereby braking the sliding seat 7. When braking is performed when the displacement meets the requirements, the linear sliding accuracy can be improved.
[0022] The above is a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, the changes, modifications, substitutions, and variations made to the embodiments still fall within the protection scope of the present invention.
Claims
1. A composite frame and rigid guide rail integrated pneumatic mechanism, comprising a mounting seat (1), a mounting hole (2), a rigid guide rail (3) and an electric control system, wherein the mounting seats (1) are arranged in pairs and correspond to each other on the left and right, and the two mounting seats (1) are respectively penetrated by a plurality of mounting holes (2) on the left and right, and the two mounting seats (1) are commonly fixed with a horizontal rigid guide rail (3), characterized in that: The rigid guide rail (3) comprises a frame plate (4) and a support rib plate (5). The two frame plates (4) are parallel to each other and are cut from steel plates. A plurality of vertical support rib plates (5) are fixed in the middle of the two frame plates (4). The support rib plates (5) and the mounting seat (1) are both made of grey cast iron. A horizontal telescopic cylinder (6) is fixed to the left portion of the rigid guide rail (3) along the horizontal left and right directions. A sliding seat (7) is fixed to the right portion of the push rod of the telescopic cylinder (6), and a plurality of support seats (8) are inserted in the left and right portions. Each support seat (8) is fastened to the rigid guide rail (3) by a fastener. The upper and lower portions of the sliding seat (7) are each rotatably connected to a horizontal main support. The main support roller (9) is provided with a vertical auxiliary support roller (10) which is rotatably connected to the front and rear parts. The sliding seat (7) is made of aluminum alloy, and the upper and lower parts are threadedly connected to a plurality of vertical fastening bolts (11). The main support roller (9) rolls against one of the adjacent end faces of the two frame plates (4). The auxiliary support roller (10) rolls against the supporting rib plate (5). The telescopic cylinder (6) is connected to an external compressed air supply system. The rigid guide rail (3) is fixed with a distance sensor (12). The distance sensor (12) can measure the change of the left and right displacement of the sliding seat (7) and is electrically connected to the electric control system. The electric control system is externally connected to a power supply.
2. The composite frame and rigid guide rail integrated pneumatic mechanism according to claim 1, characterized in that: A dustproof component is installed at each of the front and rear parts of the rigid guide rail (3), and the dustproof component comprises a pair of auxiliary support rollers (15), a belt (16) and a support frame (17). The two support rollers in each pair of auxiliary support rollers (15) are arranged in left and right correspondence with each other and are rotatably connected to the rigid guide rail (3) in a vertical state. The two pairs of auxiliary support rollers (15) respectively have belts (16) frictionally transmitted together. The two belts (16) are respectively fixed with support frames (17) that penetrate front and back. The two support frames (17) are respectively fitted and plugged with two sliding seats (7). The belts (16) are fitted with adjacent end surfaces of the two frame plates (4). The distance sensor (12) uses laser to measure distance and is located within the wrapping range of the two belts (16). The distance sensor (12) can measure the left and right distance of the sliding seat (7).
3. The composite frame and rigid guide rail integrated pneumatic mechanism according to claim 2, characterized in that: The pneumatic mechanism further comprises a braking mechanism, the braking mechanism comprising a rubber strip (19), an insert block (20), a permanent magnet (21), an electromagnet (22), and a pin (23). The front and rear parts of the rigid guide rail (3) are each fixed with a rubber strip (19) horizontally arranged in the left-right direction. The front and rear parts of the sliding seat (7) are each slidably connected with an insert block (20). The adjacent ends of the two insert blocks (20) are respectively fixed with permanent magnets (21). The middle part of the sliding seat (7) is fixed with an electromagnet (22). The electromagnet (22) is electrically connected to an electric control system. When currents in different directions are passed through the electromagnet (22), the two permanent magnets (21) can be magnetically attracted and magnetically repelled respectively, so that the two insert blocks (20) slide towards each other or slide away from each other. The ends of the two insert blocks (20) facing each other are respectively fixed with a plurality of pins (23). When the two insert blocks (20) slide away from each other, each pin (23) can be inserted into the rubber strip (19).