A linear cylinder for intelligent manufacturing
By introducing a buffer structure and a locking structure into the linear cylinder, the problem of workpiece displacement caused by inertia in the slide cylinder is solved, achieving more stable and precise cylinder body movement and simplifying the piston rod replacement process.
Patent Information
- Application Number
- CN202521631201.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-01
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-01
AI Technical Summary
Existing slide cylinders cause workpiece displacement due to inertia during high-speed movement, affecting accuracy and stability.
A linear cylinder including a buffer structure and a locking structure was designed. The buffer structure provides elastic buffering through the contact of the first and second buffer plates with the cylinder body. The locking structure ensures stable connection of the piston rod through the locking seat and locking block. The inner and outer guide rail structure improves the movement accuracy and stability.
It effectively reduces the cylinder block's moving speed, minimizes inertial effects, improves moving stability and precision, simplifies the piston rod replacement process, and enhances the smoothness and accuracy of cylinder block movement.
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Figure CN224679812U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cylinder technology, and in particular to a linear cylinder for intelligent manufacturing. Background Technology
[0002] A pneumatic slide, also known as a pneumatic cylinder, is a highly integrated pneumatic actuator. It integrates various functions such as linear guides, limit buffers, and magnetic ring position detection, and is widely used in many fields such as automation equipment, machine tools, medical equipment, and plastic machinery.
[0003] The invention with application number 202510272351.6 discloses a high-precision, high-rigidity slide cylinder, relating to the field of slide cylinder technology. It includes a cylinder body, a slide table slidably connected to the bottom outer surface of the cylinder body, and piston rods symmetrically slidably connected inside the cylinder body. Each piston rod has a floating joint rotatably connected to one end extending outside the cylinder body. Each piston rod has an anti-deflection assembly on its outer surface, including guide rails symmetrically fixed to the outer surface of the piston rod and a retaining ring slidably connected to the outer surface of the piston rod with damping. By preventing relative rotation of the piston rod during movement, which would cause lateral force to be generated, the invention aims to eliminate or reduce this lateral force.
[0004] When using existing slide cylinders, the cylinder body moves along the length of the slide, from the left end to the right end. Because it is a pneumatic system, when the cylinder body moves at a high speed, it will generate a large inertia. When the support table connected to the cylinder body is used to store workpieces, these workpieces will shift due to inertia, affecting subsequent transfers. Utility Model Content
[0005] The purpose of this invention is to provide a linear cylinder for intelligent manufacturing that addresses the shortcomings of existing technologies.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows:
[0007] A linear cylinder for intelligent manufacturing includes a cylinder body and a piston drive rod mounted on the drive end of the cylinder body. A support slide is provided at the bottom of the cylinder body, and a locking structure is installed at one end of the support slide. The outer end of the piston drive rod is connected to the locking structure. The cylinder body can move along the length direction of the support slide. The support slide is provided with a buffer structure that elastically contacts the cylinder body. The buffer structure includes a first buffer plate and a second buffer plate. The first buffer plate is located on the left side of the support slide and close to the locking structure. The first buffer plate is arranged along the length direction of the support slide and is equipped with an elastically protruding first buffer block. The second buffer plate is located on the right side of the support slide and away from the locking structure. The second buffer plate is arranged along the length direction of the support slide and is equipped with an elastically protruding second buffer block. The cylinder body is equipped with contact seats that elastically contact the first buffer block and the second buffer block, respectively.
[0008] Furthermore: the locking structure includes an upright locking seat, which is formed with a first receiving groove and a second locking groove. The width of the second locking groove is smaller than the width of the first receiving groove, and the second locking groove is just enough for the piston drive rod to be inserted.
[0009] Furthermore: a first locking block that mates with the first receiving groove is installed on the outer end of the piston drive rod, and a second locking block that is spaced apart from the first locking block is also installed on the piston drive rod. The second locking block and the second locking block mate with the second locking groove.
[0010] Furthermore: the piston drive rod includes an outer connecting sleeve connected to the locking structure and a piston rod connected to the drive end of the cylinder body. The piston rod can be inserted into the outer connecting sleeve. The outer connecting sleeve is radially formed with a through external insertion hole. The part of the piston rod inserted into the outer connecting sleeve is formed with an inner insertion hole that is coaxially matched with the external insertion hole.
[0011] Furthermore: the piston rod includes a first rod body installed on the drive end of the cylinder body and a second rod body connected to the outer connecting sleeve. The second rod body is formed with a guide insertion rod, and the first rod body is formed with a guide insertion hole for the guide insertion rod to be movably inserted.
[0012] Furthermore: the end of the guide plug rod is formed with an anti-detachment block, and the outer end of the guide plug hole is formed with an anti-detachment hole that cooperates with the anti-detachment block stop.
[0013] Furthermore: Both the first buffer plate and the second buffer plate are provided with an outer guide rail structure along the length direction. The outer guide rail structure includes a guide groove, and a guide slider is slidably installed in the guide groove. The guide slider of the first buffer plate is connected to the first buffer block, and the guide slider of the second buffer plate is connected to the second buffer block.
[0014] Furthermore, the support slide is provided with an inner guide rail structure, and the cylinder body slides in cooperation with the support slide through the inner guide rail structure.
[0015] Furthermore: the inner guide rail structure includes an inner sliding groove arranged along the length of the support slide, a pair of parallel and spaced side guide rails are installed in the inner sliding groove, a sliding guide rail is arranged between the two side guide rails, and the top of the sliding guide rail is connected to the cylinder body.
[0016] Furthermore: the side wall of the side guide rail is formed with a concave first arc-shaped groove along the length direction, and the two side walls of the sliding guide rail are respectively formed with concave second arc-shaped grooves along the length direction. The cross-section of the first arc-shaped groove and the second arc-shaped groove is a semi-circle with the same radius. Multiple guide balls are arranged in the first arc-shaped groove along the length direction, and the other half of the guide balls rolls into contact with the second arc-shaped groove.
[0017] The beneficial effects of this utility model are as follows: the cylinder body can be guided to move along the length of the support slide under the extension and retraction action of the piston drive rod. When the cylinder body moves from one end to the other end, the buffer structure can buffer the cylinder body. Specifically, the cylinder body contacts the first buffer block or the second buffer block through the contact seat. When in contact, it has an elastic buffering effect, which can reduce the speed of the cylinder body movement and reduce inertia. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a linear cylinder.
[0019] Figure 2 This is a schematic diagram of the linear cylinder from the front view.
[0020] Figure 3 This is a rear-view structural diagram of a linear cylinder.
[0021] Figure 4 This is a schematic diagram of the piston drive rod.
[0022] Figure 5 This is a cross-sectional structural diagram of a linear cylinder.
[0023] The reference numerals in the figures include:
[0024] 1-Cylinder block,
[0025] 11-Locking structure, 12-Locking seat, 13-First receiving groove, 14-Second locking groove
[0026] 15-First locking block, 16-Second locking block, 17-Outer connecting sleeve, 18-Piston rod
[0027] 19-Contact seat
[0028] 2-Piston drive rod,
[0029] 21-External insertion hole, 22-Internal insertion hole, 23-Locking rod, 24-First rod body, 25-Second rod body, 26-Guide insertion rod, 27-Guide insertion hole, 28-Anti-detachment block, 29-Anti-detachment hole
[0030] 3-Buffer structure,
[0031] 31-First buffer plate, 32-Second buffer plate, 33-Compression spring, 34-First buffer block
[0032] 35-Second buffer block, 36-Guide groove, 37-Guide slider
[0033] 4-Support slide,
[0034] 40 - Inner guide rail structure, 41 - Inner sliding groove, 42 - Side guide rail strip, 43 - Sliding guide rail
[0035] 44-First arc groove, 45-Second arc groove, 46-Guide ball. Detailed Implementation
[0036] The present invention will now be described in detail with reference to the accompanying drawings.
[0037] like Figure 1-5 As shown, a linear cylinder for intelligent manufacturing includes a cylinder body 1 and a piston rod 18 mounted on the drive end of the cylinder body 1. A support slide 4 is provided at the bottom of the cylinder body 1, and a locking structure 11 is installed at one end of the support slide 4. The outer end of the piston rod 18 is connected to the locking structure 11. The cylinder body 1 can move along the length direction of the support slide 4. The support slide 4 is provided with a buffer structure 3 that elastically contacts the cylinder body 1. The buffer structure 3 includes a first buffer plate 31 and a second buffer plate 32. The first buffer plate 31 is located on the left side of the support slide 4 and close to the cylinder body 1. Regarding the locking structure 11, the first buffer plate 31 is arranged along the length of the support slide 4, and the first buffer plate 31 is fitted with a first buffer block 34 that extends elastically through a compression spring 33; the second buffer plate 32 is located on the right side of the support slide 4 and away from the locking structure 11, the second buffer plate 32 is arranged along the length of the support slide 4, and the second buffer plate 32 is fitted with a second buffer block 35 that extends elastically through a compression spring 33; the cylinder body 1 is fitted with contact seats 19 that elastically contact the first buffer block 34 and the second buffer block 35 respectively.
[0038] Under the extension and retraction of the piston rod 18, the cylinder body 1 can be guided to move along the length of the support slide 4. When the cylinder body 1 moves from one end to the other end, the buffer structure 3 can buffer the cylinder body 1. Specifically, the cylinder body 1 contacts the first buffer block 34 or the second buffer block 35 through the contact seat 19. When in contact, it has an elastic buffering effect, which can reduce the speed of the cylinder body 1 and reduce inertia.
[0039] In one specific embodiment, the locking structure 11 includes an upright locking seat 12. The locking seat 12 is formed with a first receiving groove 13 and a second locking groove 14. The tops of both the first receiving groove 13 and the second locking groove 14 are open. The width of the second locking groove 14 is smaller than the width of the first receiving groove 13, and the second locking groove 14 is just enough to accommodate the piston rod 18. A first locking block 15 that mates with the first receiving groove 13 is installed on the outer end of the piston rod 18. The piston rod 18 is also equipped with a second locking block 16 that is spaced apart from the first locking block 15. The second locking block 16 and the second locking block 16 are... The locking block 16 simultaneously engages with the second locking groove 14; the piston rod 18 can be connected to the locking seat 12. When the piston rod 18 of the cylinder body 1 extends and retracts, the cylinder body 1 moves along the support slide 4 to achieve drive; the first locking block 15 on the piston rod 18 is exactly placed in the first receiving groove 13, and at the same time, the first locking block 15 engages with the outer end face of the second locking groove 14, and the second locking block 16 engages with the inner end face of the second locking groove 14. At this time, the axial displacement of the locking rod 23 is locked, and there will be no lateral movement, ensuring the stability of the movement of the cylinder body 1.
[0040] In one embodiment, when the piston rod 18 is damaged and needs to be replaced, the existing disassembly and replacement methods involve first separating the cylinder body 1 from the support slide 4, and then removing the piston rod 18 from the locking structure 11, which is quite cumbersome. To address this, the piston drive rod 2 includes an outer connecting sleeve 17 connected to the locking structure 11 and a piston rod 18 connected to the drive end of the cylinder body 1. The piston rod 18 can be inserted into the outer connecting sleeve 17, which has a radially formed through-hole 21. The portion of the piston rod 18 that inserts into the outer connecting sleeve 17 is formed coaxially with the through-hole 21. The inner insertion hole 22 is matched; during connection, the piston rod 18 is inserted into the outer connecting sleeve 17, so that the outer insertion hole 21 and the inner insertion hole 22 are coaxially aligned. Then, the locking rod 23 is inserted between the outer insertion hole 21 and the inner insertion hole 22 to achieve locking; during disassembly, the locking rod 23 is removed from between the outer insertion hole 21 and the inner insertion hole 22. At this time, the piston rod 18 can be disengaged from the outer connecting sleeve 17. The piston rod 18 can then be removed upward from the second locking groove 14 in the locking structure 11 for replacement without disassembling the cylinder body 1, thus saving the step of disassembling the cylinder body 1 and greatly improving efficiency.
[0041] In one embodiment, the piston rod 18 includes a first rod 24 mounted on the drive end of the cylinder body 1 and a second rod 25 connected to the outer connecting sleeve 17. The second rod 25 is formed with a guide insertion rod 26, and the first rod 24 is formed with a guide insertion hole 27 for the guide insertion rod 26 to be movably inserted. An anti-disengagement block 28 is formed at the end of the guide insertion rod 26, and an anti-disengagement hole 29 is formed at the outer end of the guide insertion hole 27 to stop and cooperate with the anti-disengagement block 28. The first rod 24 and the second rod 25 slide in cooperation with the guide insertion rod 26 and the guide insertion hole 27, which increases the length of the piston drive rod 2. When the cylinder body 1 moves, the movement path can be increased due to the action of the first rod 24 and the second rod 25, thus increasing the movement range of the cylinder body 1. When the cylinder body 1 moves to its maximum stroke, the anti-disengagement block 28 at the end of the guide insertion rod 26 will cooperate with the anti-disengagement hole 29 to prevent the first rod 24 from separating from the second rod 25.
[0042] Specifically, both the first buffer plate 31 and the second buffer plate 32 are provided with an outer guide rail structure along their length. The outer guide rail structure includes a guide groove 36, and a guide slider 37 is slidably mounted on the guide groove 36. The guide slider 37 of the first buffer plate 31 is connected to the first buffer block 34, and the guide slider 37 of the second buffer plate 32 is connected to the second buffer block 35. The first buffer block 34 and the second buffer block 35 slide along their respective guide grooves 36 via the guide slider 37. When the cylinder body 1 moves from one end of the support slide 4 to the other end, the contact seat 19 installed on the cylinder body 1 will contact the first buffer block 34 or the second buffer block 35. When in contact, the first buffer block 34 or the second buffer block 35 slides along their respective guide grooves 36 via the guide slider 37, and the compression spring 33 is compressed, achieving elastic support contact. This effectively reduces the moving speed of the cylinder body 1, has a buffering and deceleration effect, and can reduce the inertia caused by movement.
[0043] Furthermore, the support slide 4 is provided with an inner guide rail structure 40, through which the cylinder body 1 slides in cooperation with the support slide 4. The inner guide rail structure 40 includes an inner sliding groove 41 arranged along the length of the support slide 4. A pair of parallel and spaced side guide rails 42 are installed in the inner sliding groove 41. A sliding guide rail 43 is arranged between the two side guide rails 42. The top of the sliding guide rail 43 is connected to the cylinder body 1. When the cylinder body 1 moves, the sliding guide rail 43 slides in cooperation with the side guide rails 42, which can ensure the stability of the movement of the cylinder body 1, prevent the cylinder body 1 from deviating during movement, and also ensure the accuracy of its movement.
[0044] Furthermore, the side wall of the side guide rail 42 is formed with a concave first arc-shaped groove 44 along its length, and the two side walls of the sliding guide rail 43 are formed with concave second arc-shaped grooves 45 along their lengths, respectively. The cross-sections of the first arc-shaped groove 44 and the second arc-shaped groove 45 are semicircles with the same radius. Multiple guide balls 46 are arranged in the first arc-shaped groove 44 along its length, and the other half of the guide balls 46 rolls into contact with the second arc-shaped groove 45. The two semicircular first arc-shaped grooves 44 and the second arc-shaped groove 45 fit together to allow the guide balls 46 to roll into contact with the second arc-shaped groove 45. When the sliding guide rail 43 slides into contact with the side guide rail 42, the smoothness of movement is further improved and the friction is reduced.
[0045] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.
[0046] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of this utility model. The content of this specification should not be construed as a limitation of this utility model.
Claims
1. A linear cylinder for intelligent manufacturing, comprising a cylinder body and a piston drive rod mounted on the drive end of the cylinder body, a support slide is provided at the bottom of the cylinder body, a locking structure is installed at one end of the support slide, the outer end of the piston drive rod is connected to the locking structure, and the cylinder body is capable of moving along the length direction of the support slide, characterized in that: The support slide is provided with a buffer structure that elastically contacts the cylinder body; the buffer structure includes a first buffer plate and a second buffer plate. The first buffer plate is located on the left side of the support slide and close to the locking structure. The first buffer plate is arranged along the length of the support slide and is equipped with an elastically extended first buffer block. The second buffer plate is located on the right side of the support slide and away from the locking structure. The second buffer plate is arranged along the length of the support slide. The second buffer plate is equipped with a second buffer block that extends elastically. The cylinder body is equipped with contact seats that elastically contact the first buffer block and the second buffer block, respectively.
2. A linear cylinder for intelligent manufacturing according to claim 1, characterized in that: The locking structure includes an upright locking seat, which is formed with a first receiving groove and a second locking groove. The width of the second locking groove is smaller than the width of the first receiving groove, and the second locking groove is just enough for the piston drive rod to be installed.
3. A linear cylinder for intelligent manufacturing according to claim 2, characterized in that: The piston drive rod is equipped with a first locking block that mates with the first receiving groove at its outer end. The piston drive rod is also equipped with a second locking block that is spaced apart from the first locking block. The second locking block and the second locking block mate with the second locking groove.
4. A linear cylinder for intelligent manufacturing according to claim 1, characterized in that: The piston drive rod includes an outer connecting sleeve connected to the locking structure and a piston rod connected to the drive end of the cylinder body. The piston rod can be inserted into the outer connecting sleeve. The outer connecting sleeve has a through external insertion hole formed radially. The part of the piston rod inserted into the outer connecting sleeve has an inner insertion hole that is coaxially matched with the external insertion hole.
5. A linear cylinder for intelligent manufacturing according to claim 4, characterized in that: The piston rod includes a first rod body installed on the drive end of the cylinder body and a second rod body connected to the outer connecting sleeve. The second rod body is formed with a guide insertion rod, and the first rod body is formed with a guide insertion hole for the guide insertion rod to be movably inserted.
6. A linear cylinder for intelligent manufacturing according to claim 5, characterized in that: The guide plug rod has an anti-detachment block formed at its end, and the guide plug hole has an anti-detachment hole formed at its outer end that cooperates with the anti-detachment block.
7. A linear cylinder for intelligent manufacturing according to claim 1, characterized in that: Both the first buffer plate and the second buffer plate are provided with an outer guide rail structure along the length direction. The outer guide rail structure includes a guide groove, and a guide slider is slidably installed in the guide groove. The guide slider of the first buffer plate is connected to the first buffer block, and the guide slider of the second buffer plate is connected to the second buffer block.
8. A linear cylinder for intelligent manufacturing according to claim 1, characterized in that: The support slide is equipped with an inner guide rail structure, and the cylinder body slides with the support slide through the inner guide rail structure.
9. A linear cylinder for intelligent manufacturing according to claim 8, characterized in that: The inner guide rail structure includes an inner sliding groove arranged along the length of the support slide. A pair of parallel and spaced side guide rails are installed in the inner sliding groove. A sliding guide rail is arranged between the two side guide rails, and the top of the sliding guide rail is connected to the cylinder body.
10. A linear cylinder for intelligent manufacturing according to claim 9, characterized in that: The side rail has a concave first arc-shaped groove formed along its length, and the two side rails of the sliding rail have concave second arc-shaped grooves formed along their lengths, respectively. The cross-sections of the first and second arc-shaped grooves are semicircles with the same radius. Multiple guide balls are arranged in the first arc-shaped groove along its length, and the other half of the guide balls rolls into contact with the second arc-shaped groove.
Citation Information
Patent Citations
High-rigidity sliding table air cylinder with high precision
CN119878646A