Compact and precise guide air cylinder

Abstract

The utility model discloses a compact and precise guide cylinder, which comprises a guide block, a cylinder fixed on the guide block, and guide rods arranged on two sides of the guide block, the guide block is arranged between the two guide rods, a fastener is arranged at the position of the guide block deviating from the cylinder, the fastener is fixedly connected with the guide block through a first nut, and the first nut is connected with the guide block through a second nut. The fastener is in threaded connection with a piston rod of the air cylinder, a sinking groove with an opening is formed in one side of the guide block, and the piston rod of the air cylinder penetrates through the sinking groove. Through the arrangement of the sinking groove with the opening, a maintainer can make contact with and act on the nut rapidly and conveniently through a tool, so that disassembly operation is efficiently executed, the air cylinder replacement speed is effectively increased, and the equipment shutdown time is shortened; when the guide rod ascends and descends, the lubricating assembly synchronously moves along with the guide rod, so that lubricating oil stored in the lubricating assembly is evenly smeared to the surface of the guide rod, the friction resistance between the guide rod and the guide block is reduced, and the service life of parts is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air cylinder especially relates to a compact precision guide air cylinder. BACKGROUND

[0002] The guide rod cylinder is also called three-shaft cylinder, and it is obvious that two guide shafts are added besides the cylinder rod, and the guide bearing can be linear bearing or sliding bearing (oilless bushing). Therefore, after adding two additional guides, the guide rod cylinder has high torsion resistance and lateral load capacity, and high linear motion precision. The guide rod cylinder with linear bearing is suitable for the occasions where the cylinder is used for pushing and lifting, or high precision and high load capacity are required, especially for the occasions where low friction motion is required. The guide rod cylinder with sliding bearing is suitable for the occasions where the cylinder is used for braking and other radial load actions. Compared with the general brake cylinder, the guide rod cylinder can improve the transverse impact resistance by more than 2 times, and has greater torsional stiffness.

[0003] In the existing guide rod cylinder structure, the guide block is fixedly connected with the cylinder through a screw, two guide rods are arranged on the guide block, a guide block is arranged between the guide rods, and the guide block is fixedly connected with the piston rod of the cylinder. This design causes inconvenience when the cylinder is replaced, because the tool cannot effectively enter the narrow space between the guide block and the guide block, thereby reducing the disassembly efficiency and prolonging the equipment downtime. To solve the above problems, the applicant has made beneficial design improvements, aiming to provide a more convenient cylinder replacement scheme, and the following technical scheme is proposed in this background. SUMMARY

[0004] The utility model discloses a kind of to overcome the deficiencies of the above-mentioned traditional guide rod cylinder design, and provide a product of convenient replacement, improve maintenance efficiency, improve service life.

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] A compact precision guide air cylinder, comprising a guide block, a cylinder fixed thereon, and guide rods arranged on both sides thereof, a guide block is arranged between the two guide rods, a fastener is arranged at the position of the guide block away from the cylinder, the fastener is fixedly connected with the guide block through a first nut, the fastener is threadedly connected to the piston rod of the cylinder, one side of the guide block is provided with a sink groove with an opening, the piston rod of the cylinder passes through the sink groove, the piston rod of the cylinder is threadedly connected with a second nut, and the first nut and the second nut abut against each other, the guide block is provided with a lubricating assembly and abuts against the guide rod.

[0007] Preferably, the guide block is provided with a counterbore for accommodating the fastener, a buffer washer is arranged between the guide block and the guide block, and is sleeved on the guide rod.

[0008] Preferably, the fastener is provided with a nut part for tool operation, and is arranged in the counterbore, the nut part is provided with a first threaded rod, and passes through the counterbore, the first threaded rod is threadedly connected to a first nut, and a flat washer is arranged between the first nut and the guide block.

[0009] Preferably, one end of the first threaded rod is provided with a second threaded rod, and is threadedly connected to a piston rod of the air cylinder.

[0010] Preferably, the guide block is connected and fixed with the guide rod by a rivet.

[0011] Preferably, the guide block is provided with a guide hole through which the guide rod passes, one side of the guide block is provided with an oil storage cavity, the oil storage cavity is provided with an oil outlet hole and is in communication with the guide hole, and the oil outlet hole is provided with a constricting part.

[0012] Preferably, the lubricating assembly comprises a plug and a ball, the plug is threadedly connected to an inlet of the oil storage cavity, the plug is provided with a type groove for tool operation, the ball abuts against the constricting part and abuts against the guide rod, and a snap spring is arranged between the ball and the plug.

[0013] Beneficial effects:

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) The utility model discloses a compact and precise guide air cylinder, which is characterized by the following technical scheme.

[0016] (2) The utility model discloses a compact and precise guide air cylinder, which is characterized by the following technical scheme. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the compact and precise guide air cylinder.

[0018] Figure 2 It is a rear view of the compact and precise guide air cylinder.

[0019] Figure 3 It is a side sectional structure schematic view of the compact and precise guide air cylinder of the utility model;

[0020] Figure 4 It is an exploded structure schematic view of the compact and precise guide air cylinder of the utility model;

[0021] The correspondence between the reference signs in the drawings and the component names is as follows:

[0022] Reference signs: 1, guide block; 2, air cylinder; 3, guide block; 4, guide rod; 5, fastener; 6, lubricating assembly; 7, first nut; 8, second nut; 11, sink; 12, guide hole; 13, oil storage cavity; 14, oil outlet hole; 15, shrinkage part; 31, counterbore; 32, rivet; 33, buffer washer; 51, nut part; 52, first threaded rod; 53, flat washer; 54, second threaded rod; 61, plug; 62, ball; 63, snap spring; 611, groove. DETAILED DESCRIPTION

[0023] The technical solutions of the utility model will be described clearly and completely below in combination with embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] In the description of the utility model, it should be understood that the directions or position relationships indicated by the terms "upper", "lower", "left", "right" and the like are the directions or position relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as a limitation on the utility model.

[0025] In the embodiments of the utility model, "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.

[0026] REFERENCE EXAMPLE Figures 1 to 4A compact and precise guide cylinder comprises a guide block 1, a cylinder 2 fixed thereon, guide rods 4 arranged on both sides of the guide block 1, a guide block 3 arranged between the two guide rods 4, a fastener 5 arranged at a position of the guide block 3 away from the cylinder 2, the fastener 5 being connected and fixed with the guide block 3 through a first nut 7, the fastener 5 being threadedly connected to a piston rod of the cylinder 2, one side of the guide block 1 being provided with a sunken groove 11 with an opening, the piston rod of the cylinder 2 penetrating through the sunken groove 11, the piston rod of the cylinder 2 being threadedly connected with a second nut 8 and abutting against the first nut 7, the guide block 1 being provided with a lubricating assembly 6 and abutting against the guide rods 4, the sunken groove 11 with the opening is designed to facilitate the entry of a tool and operation, so that a maintenance worker can quickly and conveniently contact and act on the first nut 7 and the second nut 8 by using a tool, thereby efficiently performing a dismounting operation and quickly releasing the connection between the guide block 3 and the piston rod of the cylinder 2, effectively improving the speed of replacing the cylinder 2, shortening the equipment downtime, and making the product have the characteristics of convenient replacement and improved maintenance efficiency;

[0027] It is worth mentioning that the guide block 3 is provided with a counterbore 31 accommodating the fastener 5, a buffer washer 33 is arranged between the guide block 3 and the guide block 1 and is sleeved on the guide rod 4, and the buffer washer 33 reduces the impact force when the cylinder 2 pulls the guide block 3 to retract, thereby avoiding excessive vibration;

[0028] It is worth mentioning that the fastener 5 is provided with a nut portion 51 for tool operation and is arranged in the counterbore 31, the nut portion 51 is provided with a first threaded rod 52 penetrating through the counterbore 31, the first threaded rod 52 is threadedly connected to the first nut 7, and a flat washer 53 is arranged between the first nut 7 and the guide block 3;

[0029] It is worth mentioning that one end of the first threaded rod 52 is provided with a second threaded rod 54 threadedly connected to the piston rod of the cylinder 2;

[0030] It is worth mentioning that the guide block 3 is connected and fixed with the guide rod 4 through a rivet 32;

[0031] It is worth mentioning that the guide block 1 is provided with a guide hole 12 through which the guide rod 4 penetrates, one side of the guide block 1 is provided with an oil storage cavity 13, the oil storage cavity 13 is provided with an oil outlet hole 14 in communication with the guide hole 12, the oil outlet hole 14 is provided with a constricted portion 15, the oil storage cavity 13 stores lubricating oil, the constricted portion 15 is adapted to the shape of a ball 62, a circlip 63 ensures that the ball 62 is tightly abutted against the constricted portion 15, and the lubricating oil in the oil storage cavity 13 is prevented from permeating out when the ball 62 is not rolled;

[0032] It is worth mentioning that the lubricating assembly 6 comprises a plug cap 61, a ball 62, the plug cap 61 is screwed at the entrance of the oil storage cavity 13, the plug cap 61 is provided with a type groove 611 for tool operation, the ball 62 abuts against the shrinkage part 15 and the guide rod 4, the ball 62 and the plug cap 61 are provided with a snap spring 63, whenever the guide rod 4 performs the lifting movement, the ball 615 synchronously moves, thereby uniformly spreading the internally stored lubricating oil to the surface of the guide rod 4, the design significantly reduces the frictional resistance between the guide rod 4 and the guide block 1, effectively improves the smoothness of the movement, prolongs the service life of the related components, ensures the stability and reliability of the equipment under the conditions of high load and high frequency operation, reduces the energy loss and component wear caused by friction, improves the overall mechanical efficiency and service life.

[0033] The above is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope determined by the claims submitted by the utility model.

Claims

1. A compact precision guide cylinder, comprising a guide block (1), a cylinder (2) fixed thereon, and guide rods (4) disposed on both sides thereon, wherein a guide block (3) is provided between the two guide rods (4), characterized in that: The guide block (3) is provided with a fastener (5) at a position away from the cylinder (2). The fastener (5) is connected and fixed to the guide block (3) by a first nut (7). The fastener (5) is threaded to the piston rod of the cylinder (2). One side of the guide block (1) is provided with a recess (11) with an opening. The piston rod of the cylinder (2) passes through the recess (11). The piston rod of the cylinder (2) is threaded to a second nut (8) and abuts against the first nut (7). The guide block (1) is provided with a lubrication component (6) and abuts against the guide rod (4).

2. The compact precision guide cylinder according to claim 1, characterized in that: The guide block (3) is provided with a countersunk hole (31) for accommodating the fastener (5), and a buffer washer (33) is provided between the guide block (3) and the guide block (1) and is sleeved on the guide rod (4).

3. The compact precision guide cylinder according to claim 2, characterized in that: The fastener (5) is provided with a nut part (51) for tool operation and is provided in a countersunk hole (31). The nut part (51) is provided with a first threaded rod (52) and passes through the countersunk hole (31). The first threaded rod (52) is threaded to a first nut (7). A flat washer (53) is provided between the first nut (7) and the guide block (3).

4. The compact precision guide cylinder according to claim 3, characterized in that: One end of the first threaded rod (52) is provided with a second threaded rod (54), which is threadedly connected to the piston rod of the cylinder (2).

5. The compact precision guide cylinder according to claim 1, characterized in that: The guide block (3) is connected and fixed to the guide rod (4) by rivets (32).

6. The compact precision guide cylinder according to claim 1, characterized in that: The guide block (1) is provided with a guide hole (12) through which the guide rod (4) passes. An oil storage cavity (13) is provided on one side of the guide block (1). The oil storage cavity (13) is provided with an oil outlet hole (14) and communicates with the guide hole (12). The oil outlet hole (14) is provided with a tightening part (15).

7. The compact precision guide cylinder according to claim 6, characterized in that: The lubrication assembly (6) includes a plug (61) and a ball (62). The plug (61) is threaded to the inlet of the oil reservoir (13). The plug (61) has a groove (611) for tool operation. The ball (62) abuts against the tightening part (15) and the guide rod (4). A retaining ring (63) is provided between the ball (62) and the plug (61).

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