All -round lever clamping type single -way intake detection cylinder

Abstract

The utility model discloses a kind of all-around lever clamping type single-path air intake detection cylinders, including cylinder, piston, piston rod and bottom cover, the outer periphery of the cylinder upper end is detachably provided with rotary seat in the piston rod, the upper portion of the rotary seat is hinged with connecting rod;Piston rod is provided with the piston rod inner cavity of open bottom;The middle part of bottom cover is threadedly connected with detection rod, sleeve is provided on the detection rod, the sleeve extends into the piston rod inner cavity and is slidably connected with it, the gap for gas circulation is equipped between the sleeve and detection rod, the detection rod is provided with upper and lower through exhaust passage, the upper end outer side wall of the detection rod is oppositely provided with two guide sections.The utility model can solve the problem that the oil cylinder applied in existing tool fixture cannot meet the diversified different angle pressing operation demand due to the limitation of structural design, and cannot accurately judge the different operating state of oil cylinder.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, specifically to an all-around lever clamping type single-channel air intake detection cylinder. Background Technology

[0002] In modern industrial manufacturing, hydraulic cylinders, as core pressure actuators, are widely used in various tooling fixtures to precisely clamp and fix workpieces. The accurate detection of the piston rod's position directly affects production quality and efficiency. However, existing steerable hydraulic cylinders have significant structural design flaws: their upper pressure arms typically only have three preset clamping directions—center, left, and right—and are symmetrically distributed at 90-degree angles around the center. This design means that under fixed mounting hole angles, the cylinder can only clamp workpieces in specific directions, making it difficult to adapt to complex and varied operating scenarios. With the rapid development of manufacturing towards high precision and customization, product processing demands are becoming increasingly diverse. Many workpieces require clamping and fixing at unconventional angles such as 30, 45, and 60 degrees during processing. Furthermore, existing hydraulic cylinders cannot provide real-time feedback on the piston rod's operating status, making it impossible to determine whether the product is properly clamped. Therefore, a new steerable hydraulic cylinder needs to be designed to meet current usage requirements. Utility Model Content

[0003] This utility model provides an all-around lever clamping type single-channel air intake detection cylinder, which can solve the problem that the hydraulic cylinders used in existing tooling fixtures cannot meet the diverse clamping operation requirements at different angles due to the limitations of their structural design, and cannot accurately judge the different operating states of the hydraulic cylinder.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a omnidirectional lever-clamping type single-channel air intake detection cylinder, comprising a cylinder body, a piston, a piston rod, and a bottom cover. A rotating seat is detachably mounted on the upper end of the cylinder body, located on the outer periphery of the piston rod. This rotating seat can be rotated and adjusted along the central axis of the piston rod. A connecting rod is hinged to the upper part of the rotating seat. The piston rod has an open-bottomed piston rod cavity. A detection rod is threadedly connected to the middle of the bottom cover. A sleeve is fitted onto the detection rod, extending into and slidably connecting with the piston rod cavity. A gap for gas flow is provided between the sleeve and the detection rod. The detection rod is provided with an exhaust channel that runs vertically through it. Two guide surfaces are provided opposite each other on the outer side wall of the upper end of the detection rod. The upper part of the detection rod, located above the guide surfaces, is provided with a first exhaust hole that communicates with the exhaust channel. The lower end of the cylinder is provided with a first air intake channel, and the bottom cover is provided with a second air intake channel that communicates with the first air intake channel. Without changing the installation position of the cylinder, the pressing angle of the pressure wall can be adjusted by adjusting the angle of the rotating seat and the cylinder. The operating state of the piston rod is detected by the change in the gas flow state through the circuit formed by the gas in the detection rod, sleeve, piston rod cavity and other structures.

[0005] As a supplement to the technical solution described in this utility model, the upper end of the cylinder is provided with a slot that matches the rotating seat. The slot provides a precise initial installation position and rotation guide for the rotating seat.

[0006] As a supplement to the technical solution described in this utility model, an installation groove is provided between the outer wall of the rotary seat and the inner wall of the slot. Multiple steel balls are placed in the installation groove. A steel ball placement hole is provided on the upper side wall of the cylinder body, which is connected to the installation groove. Multiple steel balls can be placed inside the installation groove through the steel ball placement hole. When the oil cylinder performs a steering operation, the steel balls can significantly reduce the frictional resistance during the rotation adjustment process of the rotary seat, so that the rotary seat can rotate more smoothly along the central axis of the piston rod and can quickly respond to steering requirements.

[0007] As a supplement to the technical solution described in this utility model, a plurality of fasteners are arranged on the rotating seat along the circumferential direction, and an indicator arrow is provided at the edge of the upper end face of the rotating seat. The upper end face of the cylinder is located on the outer periphery of the slot and is marked with a scale along the circumferential direction. When the rotating seat rotates, in conjunction with its own indicator arrow and the scale on the cylinder, the operator can more accurately adjust and determine the turning angle of the pressure arm on the oil cylinder.

[0008] As a supplement to the technical solution described in this utility model, a dustproof ring is provided at the upper middle part of the rotating seat on the upper side of the cylinder body. The dustproof ring is sleeved on the outer wall of the piston rod and is used to seal the gap between the outer wall of the piston rod and the cylinder body.

[0009] As a supplement to the technical solution described in this utility model, two first sealing rings are provided on the upper end of the detection rod on the upper and lower sides of the first exhaust hole. When the piston rod is in the tooling state, the first sealing rings are used to abut and seal against the inner wall of the piston rod cavity.

[0010] As a supplement to the technical solution described in this utility model, a second sealing ring is provided on both the outer and inner walls of the piston. The inner second sealing ring is used to abut and seal against the outer wall of the piston rod, and the outer second sealing ring is used to abut and seal against the inner wall of the cylinder.

[0011] As a supplement to the technical solution described in this utility model, a second exhaust hole connected to the exhaust channel is provided at the center of the bottom cover for discharging the gas in the exhaust channel.

[0012] As a supplement to the technical solution described in this utility model, the bottom of the bottom cover is provided with a gas flow channel that communicates with the second air inlet channel, and a sealing element is provided in the gas flow channel to block the gas flow channel.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] With the rotary seat adjustment and scale markings, precise clamping operations at any angle can be achieved. Only one air path and one air detection device are needed to detect the clamping and releasing states of the hydraulic cylinder, unaffected by oil pressure. A steel ball guide mechanism reduces rotational resistance, a sealing ring design ensures air path sealing, and a plug provides overpressure protection, improving equipment stability. This solves the problem that existing hydraulic cylinders used in tooling fixtures cannot meet diverse clamping operation needs at different angles due to structural design limitations, and cannot accurately determine different operating states of the hydraulic cylinder. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 These are cross-sectional structural views of the present invention from different angles;

[0018] Figure 4 This is a three-dimensional structural diagram of the cylinder body of this utility model;

[0019] Figure 5 This is a cross-sectional view of the cylinder body of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the piston rod of this utility model;

[0021] Figure 7 This is a three-dimensional structural diagram of the detection rod of this utility model;

[0022] Figure 8 This is a three-dimensional structural diagram of the sealing component of this utility model;

[0023] Figure 9 This is a schematic diagram of the piston of this utility model located in the upper part of the cylinder body;

[0024] Figure 10 This is a schematic diagram of the piston of this utility model located in the lower part of the cylinder body.

[0025] Figure label:

[0026] 1. Cylinder block; 11. First air intake passage; 12. Groove; 13. Mounting groove; 14. Steel ball; 15. Steel ball placement hole; 16. Marking scale; 17. Dustproof ring; 2. Piston; 21. Second sealing ring; 3. Piston rod; 31. Piston rod inner cavity; 4. Connecting rod; 5. Rotary seat; 51. Indicating arrow; 10. Fastener; 6. Bottom cover; 61. Second air intake passage; 62. Second exhaust port; 63. Gas flow channel; 64. Sealing component; 641. Sealing plug; 642. Spring; 643. Steel ball; 644. Venting passage; 645. Third sealing ring; 7. Detection rod; 71. Exhaust channel; 72. Guide cut surface; 73. First exhaust port; 74. First sealing ring; 8. Sleeve; 81. Fourth sealing ring; 9. Gap. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] The present invention relates to an all-around lever clamping type single-channel air intake detection cylinder, such as... Figure 1-10As shown, the device includes a cylinder body 1, a piston 2, a piston rod 3, and a bottom cover 6. A rotating seat 5 is detachably mounted on the upper end of the cylinder body 1, located on the outer periphery of the piston rod 3. This rotating seat 5 can rotate and adjust along the central axis of the piston rod 3. A connecting rod 4 is hinged to the upper part of the rotating seat 5. The piston rod 3 has an open-bottomed piston rod cavity 31. A detection rod 7 is threadedly connected to the middle of the bottom cover 6. A sleeve 8 is fitted onto the detection rod 7, extending into and slidably connecting with the piston rod cavity 31. The upper and lower diameters of the piston rod cavity 31 are both smaller than the diameter at the middle. A gap 9 for gas flow is provided between the sleeve 8 and the detection rod 7. The detection rod 7 has a vertically penetrating exhaust channel 71. Two guide surfaces 72 are oppositely arranged on the upper outer wall of the detection rod 7. The upper part of the detection rod 7, located above the guide surfaces 72, has a connection to the exhaust channel 71. A first exhaust port 73 is connected; a first air intake channel 11 is provided at the lower end of the cylinder body 1, and a second air intake channel 61 connected to the first air intake channel 11 is provided on the bottom cover 6. A pressure arm is connected between the piston rod 3 and the connecting rod 4. The piston 2 is circumferentially rotated and axially slidably disposed in the cylinder body 1. The outer side of the piston 2 is sealed to the inner wall of the cylinder body 1. One end of the piston rod 3 is linked to the piston 2, and the other end of the piston rod 3 extends out of the cylinder body 1 and is hinged to the pressure arm. The extension and retraction of the piston rod 3 can drive the connecting rod 4 to swing and press the product. The rotation of the rotating seat 5 can drive the pressure arm to rotate along the central axis of the piston rod 3. Without changing the installation position of the cylinder body 1, the pressing angle of the pressure arm can be adjusted by adjusting the angle between the rotating seat 5 and the cylinder body 1. The operating status of the piston rod 3 is detected by the change of gas flow state through the circuit formed by the gas in the detection rod 7, sleeve 8, piston rod inner cavity 31 and other structures.

[0029] In this embodiment, as Figure 5 As shown, the upper end of the cylinder body 1 is provided with a slot 12 that matches the rotating seat 5. The slot 12 provides a precise initial installation position and rotation guide for the rotating seat 5.

[0030] In this embodiment, as Figure 2 and Figure 5 As shown, an installation groove 13 is provided between the outer wall of the rotary seat 5 and the inner wall of the slot 12. Multiple steel balls 14 are placed in the installation groove 13. A steel ball placement hole 15 communicating with the installation groove 13 is provided on the upper side wall of the cylinder body 1. Multiple steel balls 14 can be placed inside the installation groove 13 through the steel ball placement hole 15. When the cylinder performs a steering operation, the steel balls 14 can significantly reduce the frictional resistance during the rotation adjustment process of the rotary seat 5, so that the rotary seat 5 can rotate more smoothly along the central axis of the piston rod and can quickly respond to steering requirements.

[0031] In this embodiment, as Figure 1 As shown, five fasteners 10 are arranged along the circumferential direction on the rotating seat 5. An indicator arrow 51 is provided at the edge of the upper end face of the rotating seat 5. The upper end face of the cylinder body 1 is located on the outer periphery of the slot 12 and is provided with a marking scale 16 along the circumferential direction. When the rotating seat 5 rotates, in conjunction with its own indicator arrow 51 and the marking scale 16 on the cylinder body 1, the operator can more accurately adjust and determine the turning angle of the pressure arm on the oil cylinder.

[0032] In this embodiment, as Figure 2 As shown, a dustproof ring 17 is provided at the upper middle part of the rotating seat 5 on the upper side of the cylinder body 1. The dustproof ring 17 is sleeved on the outer wall of the piston rod 3 and is used to seal the gap between the outer wall of the piston rod 3 and the cylinder body 1.

[0033] In this embodiment, as Figure 2 As shown, the upper end of the detection rod 7 is provided with two first sealing rings 74 on the upper and lower sides of the first exhaust hole 73. When the piston rod 3 is in the tooling state, the first sealing rings 74 are used to abut and seal against the inner wall of the piston rod cavity 31.

[0034] In this embodiment, as Figure 2 As shown, the piston 2 is provided with a second sealing ring 21 on both its outer and inner side walls. The inner second sealing ring 21 is used to abut and seal against the outer side wall of the piston rod 3, and the outer second sealing ring 21 is used to abut and seal against the inner wall of the cylinder 1.

[0035] In this embodiment, as Figure 2 As shown, a second exhaust hole 62 connected to the exhaust channel 71 is provided at the center of the bottom cover 6 for discharging the gas in the exhaust channel 71.

[0036] In this embodiment, as Figure 3 As shown, the bottom of the bottom cover 6 is provided with a gas flow channel 63 that communicates with the second air intake channel 61. A sealing member 64 is provided in the gas flow channel 63 to block the gas flow channel 63. The sealing member 64 includes a sealing plug 641 disposed in the gas flow channel 63. A venting channel 644 is provided at the bottom of the sealing plug 641. A spring 642 is fixedly disposed in the inner cavity of the sealing plug 641. A steel ball 643 is welded to the top of the spring 642. A third sealing ring 645 is disposed in the gas flow channel 63 above the sealing plug 641. The third sealing ring 645 is used to seal the gap between the sealing plug 641 and the steel ball 643. When the gas pressure in the second air intake channel 61 is higher than the set pressure, the gas will move the steel ball 643 of the sealing member 64 downward to disengage it from the third sealing ring 645. The gas in the second air intake channel 61 can flow out through the inner cavity of the sealing plug 641 and the venting channel 644.

[0037] In this embodiment, as Figure 2 As shown, during installation, firstly, the second sealing ring 21 is installed on the outer and inner walls of the piston 2. Next, the sleeve 8 is fitted onto the detection rod 7 and the detection rod 7 is threaded to the center of the bottom cover 6. Simultaneously, two first sealing rings 74 are installed on the upper end of the detection rod 7, located on the upper and lower sides of the first exhaust port 73. The piston rod 3 with the piston 2 is then inserted into the cylinder 1. A fourth sealing ring 81 is fitted onto the lower end of the sleeve 8, which is used to seal against the bottom cover 6. The sleeve 8 and the detection rod 7 are located within the inner cavity 31 of the piston rod 3. The bottom cover 6 is then... The cover 6 and the cylinder 1 are connected by bolts. The dustproof ring 17 is put on the upper side of the piston rod 3. The rotating seat 5 is installed in the slot 12 at the upper end of the cylinder 1. The rotating seat 5 holds the dustproof ring 17. Multiple steel balls 14 are accurately placed into the mounting slot 13 through the steel ball placement hole 15 on the upper side wall of the cylinder 1. After the steel balls 14 are placed, a plug is screwed into the steel ball placement hole 15 to prevent the steel balls 14 from running out. The rotating seat 5 is fixed by tightening the fastener 10. The sealing part 64 is installed in the gas flow channel 63. The external gas source is connected to the first air intake channel 11 of the cylinder 1.

[0038] In this embodiment, as Figure 1 As shown, when it is necessary to adjust the angle of the rotating seat 5, loosen the fastener 10, and the operator can rotate the rotating seat 5 as needed by using the indicator arrow 51 and the marking scale 16 on the cylinder body 1. After adjusting the position of the rotating seat 5, tighten the fastener 10.

[0039] In this embodiment, as Figure 2-3 As shown, the first air intake channel 11 and the second exhaust port 62 are both connected to the detection device. The detection device inflates the first air intake channel 11. The gas enters the gap 9 between the sleeve 8 and the detection rod 7 through the first air intake channel 11 and the second air intake channel 61. The gas continues to pass through the guide surface 72 into the piston rod cavity 31. When the piston rod 3 is located at the bottom of the cylinder 1, the gas can enter the exhaust channel 71 and the second exhaust port 62 from the first exhaust port 73 and enter the detection device. The detection device judges the state of the piston rod 3 by the gas pressure. When the piston rod 3 is located at the top of the cylinder 1, the top of the detection rod is located at the lower end of the piston rod cavity 31. The first sealing ring 74 is in close contact with the inner wall of the lower end of the piston rod cavity 31. When the detection device is inflated, the gas cannot enter the piston rod cavity 31 and the first exhaust port 73. The detection device judges the state of the piston rod 3 by the gas pressure.

[0040] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0041] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A omnidirectional lever clamping type single-channel air intake detection cylinder, comprising a cylinder body (1), a piston (2), a piston rod (3), and a bottom cover (6), characterized in that: The upper end of the cylinder (1) is detachably provided with a rotating seat (5) on the outer periphery of the piston rod (3). The rotating seat (5) can be rotated and adjusted along the central axis of the piston rod (3). A connecting rod (4) is hinged to the upper part of the rotating seat (5). The piston rod (3) is provided with a piston rod cavity (31) with an open bottom; The bottom cover (6) is threaded with a detection rod (7) in the middle. A sleeve (8) is fitted on the detection rod (7). The sleeve (8) extends into the inner cavity (31) of the piston rod and is slidably connected to it. A gap (9) for gas flow is provided between the sleeve (8) and the detection rod (7). An exhaust channel (71) is provided on the detection rod (7) and runs vertically through it. Two guide surfaces (72) are provided opposite to each other on the outer side wall of the upper end of the detection rod (7). A first exhaust hole (73) communicating with the exhaust channel (71) is provided on the upper part of the detection rod (7) above the guide surfaces (72). The lower end of the cylinder body (1) is provided with a first air intake channel (11), and the bottom cover (6) is provided with a second air intake channel (61) that is connected to the first air intake channel (11).

2. The omnidirectional lever clamping type single-channel air intake detection cylinder according to claim 1, characterized in that: The upper end of the cylinder (1) is provided with a slot (12) that matches the rotating seat (5).

3. The omnidirectional lever clamping type single-channel air intake detection cylinder according to claim 2, characterized in that: An installation groove (13) is provided between the outer wall of the rotating seat (5) and the inner wall of the slot (12). Multiple steel balls (14) are placed in the installation groove (13). A steel ball placement hole (15) communicating with the installation groove (13) is provided on the upper side wall of the cylinder (1).

4. The omnidirectional lever clamping type single-channel air intake detection cylinder according to claim 2, characterized in that: Multiple fasteners (10) are arranged on the rotating seat (5) along the circumferential direction. An indicator arrow (51) is provided at the edge of the upper end face of the rotating seat (5). The upper end face of the cylinder (1) is located on the outer periphery of the slot (12) and is provided with marking scale (16) along the circumferential direction.

5. The omnidirectional lever clamping type single-channel air intake detection cylinder according to claim 1, characterized in that: The upper middle part of the rotating seat (5) is provided with a dustproof ring (17) on the upper side of the cylinder body (1), and the dustproof ring (17) is sleeved on the outer wall of the piston rod (3).

6. The omnidirectional lever clamping type single-channel air intake detection cylinder according to claim 1, characterized in that: The upper end of the detection rod (7) is provided with two first sealing rings (74) on the upper and lower sides of the first exhaust hole (73).

7. The omnidirectional lever clamping type single-channel air intake detection cylinder according to claim 1, characterized in that: The piston (2) is provided with a second sealing ring (21) on both its outer and inner sidewalls.

8. The omnidirectional lever clamping type single-channel air intake detection cylinder according to claim 1, characterized in that: The bottom cover (6) has a second exhaust hole (62) at its center that is connected to the exhaust channel (71).

9. The omnidirectional lever clamping type single-channel air intake detection cylinder according to claim 1, characterized in that: The bottom of the bottom cover (6) is provided with a gas flow channel (63) that communicates with the second air inlet channel (61), and a sealing element (64) is provided in the gas flow channel (63).

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