CN219827326U

CN219827326U - Rotary cylinder capable of quickly replacing rocker arm

Info

Publication number: CN219827326U
Application number: CN202320795442.4U
Authority: CN
Inventors: 黄雪华; 黄义林
Original assignee: Wenzhou Niuben Pneumatic Co ltd
Current assignee: Wenzhou Niuben Pneumatic Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-10-13
Anticipated expiration: 2033-04-12

Abstract

The utility model provides a but revolving cylinder of quick replacement rocking arm, including cylinder body, base and the accommodation space that forms by cylinder body and base, set up piston and piston rod in the accommodation space, the piston rod has continuous guide slot, the guide pin can pass the base and slide in the guide slot, still include the clamp plate, the clamp plate has a bottom basal plane, two lateral part basal planes, be provided with the location node that prescribes a limit to the piston rod at the final equipment position of clamp plate on the bottom basal plane, all be provided with the locking unit of switchable locking state/unblock state on every lateral part basal plane, be provided with the locking node that combines with the locking unit at final equipment position on the outer peripheral face of piston rod. The utility model has the advantages that the locking unit is used for locking/unlocking the piston rod, so that the quick replacement is realized when the pressing plate needs to be replaced, the operation mode of toolless assembly and no part is realized, and the hidden trouble of difficult disassembly caused by rusting of the screw is avoided.

Description

Rotary cylinder capable of quickly replacing rocker arm

Technical Field

The utility model relates to the technical field of cylinders, in particular to a rotary cylinder with a quickly replaceable rocker arm.

Background

The rotary clamping cylinder is one of the cylinders in the automatic assembly line operation.

Publication number CN202240495U discloses a constant rotary clamping cylinder comprising: the lower surface of the connecting end of the pressing plate and the air cylinder is provided with a rotary shaft, the lower part of the rotary shaft is provided with a U-shaped groove, the upper end of the driving shaft is provided with a pin, the driving shaft is installed in the rotary shaft in a nested mode and is connected with the U-shaped groove through the pin, and the driving shaft can float up and down in the U-shaped groove and drive the rotary shaft to constantly rotate. The clamp plate of this kind of gyration cylinder is realized clamp plate and gyration axle connection with the bolt as the connecting piece, but there is certain defect in the mode of adopting bolted connection, bolted connection needs part (i.e. bolt itself) and instrument (i.e. fastening appurtenance) at first, the condition that generally takes place to need to change is the replacement clamp plate, the replacement here can be damage the replacement, perhaps because the replacement that the adaptation size problem takes place, the bolt belongs to the metalwork simultaneously, rust can take place after using certain cycle, rust can increase the dismantlement degree of difficulty, need loaded down with trivial details dismantlement process, perhaps directly replace cylinder itself, like this relative cost can be higher.

Disclosure of Invention

The present utility model is directed to solving the above-mentioned drawbacks of the prior art, and provides a revolving cylinder with a quickly replaceable rocker arm for solving the above-mentioned problems.

The utility model solves the technical problems by adopting the technical scheme that: the rotary cylinder capable of quickly replacing the rocker arm comprises a cylinder body, a base and an accommodating space formed by the cylinder body and the base, wherein a piston and a piston rod are arranged in the accommodating space, the piston rod is provided with a continuous guide groove, a guide pin can pass through the base to slide in the guide groove, the rotary cylinder further comprises a pressing plate, the pressing plate is provided with a bottom base surface and two side base surfaces, a positioning node for limiting the piston rod to be at the final assembly position of the pressing plate is arranged on the bottom base surface, a locking unit capable of switching a locking state/an unlocking state is arranged on each side base surface, and a locking node combined with the locking unit at the final assembly position is arranged on the peripheral surface of the piston rod.

Further perfecting, the positioning node comprises a peripheral wall formed on the bottom base surface and extending into the platen, and a movable space defined within the peripheral wall and allowed to be therein; the engagement wall abuts against the piston rod in the assembly direction and in a direction opposite to the assembly direction.

Further perfecting, the side base surface is provided with a guide structure, a first guide channel extending and penetrating along the height direction of the guide structure is arranged in the guide structure, and the locking unit is provided with a first guide body so that the first guide body is arranged in the first guide channel and moves along the first guide channel to be used for switching the locking state/unlocking state of the locking unit.

Further perfecting, the locking unit comprises an operation main body and a lock cylinder; the operation main body is provided with an assembling matching surface which is contacted with a corresponding side base surface, the assembling matching surface is provided with an upper installation area, a lower limiting area and a separation block for separating the upper installation area from the lower limiting area on the operation main body, the first guide body is arranged in the upper installation area, the two ends of the first guide body are respectively connected with the operation main body and the separation block, the side base surface is also provided with a channel which extends into a positioning node, and the lock cylinder is arranged in the channel and moves so as to be combined with the locking node in a locking state and combined with the lower limiting area in an unlocking state.

Further perfecting, the first guide body is also sleeved with an elastic unit, the upper installation area is provided with a stopping base surface on the operation main body, one end of the elastic unit is supported on the stopping base surface, and the other end of the elastic unit is supported on the separation block.

Further perfecting, the channel defines a locking guide direction and an unlocking guide direction, the channel is divided into a limiting part and a sliding part from the unlocking guide direction to the locking guide direction, and when the lock cylinder is combined with the locking node or the lower limiting area, part of the lock cylinder is exposed out of the channel, and when the lock cylinder reaches the limiting part, the lock cylinder and the limiting part generate extrusion force.

Further perfecting, the lower limiting zone is also provided with a prompt hole for the part of the lock cylinder exposed outside the channel to enter in the operation main body.

Further perfecting, the guide structure is also provided with second guide channels which are symmetrically distributed on two sides of the first guide channel, the second guide channels are used for placing second guide bodies and moving along the second guide bodies, and the second guide bodies are arranged in the upper installation area, and two ends of the second guide bodies are respectively connected with the operation main body and the separation blocks.

The beneficial effects of the utility model are as follows:

the utility model realizes the locking/unlocking of the piston rod by the locking unit, realizes the quick replacement when the pressing plate needs to be replaced, realizes the operation mode of assembling without tools and parts, and also has no hidden trouble of difficult disassembly caused by rusting of screws.

Drawings

FIG. 1 is a schematic diagram of the present utility model in full section;

FIG. 2 is a schematic diagram of the platen and piston rod assembly of the present utility model in full section;

FIG. 3 is a schematic view of an exploded structure of the pressure plate and piston rod of the present utility model;

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 3 in accordance with the present utility model;

FIG. 5 is a schematic view of the locking unit and guide structure of the present utility model in full section on the front side;

fig. 6 is a schematic view of a side view of the locking unit and guide structure of the present utility model in full section.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to the drawings: the rotary cylinder capable of quickly replacing the rocker arm comprises a cylinder body 1, a base 2 and an accommodating space formed by the cylinder body 1 and the base 2, wherein a piston 3 and a piston rod 4 are arranged in the accommodating space, the piston rod 4 is provided with a continuous guide groove 41, a guide pin 5 can slide in the guide groove 41 through the base 2, the rotary cylinder further comprises a pressing plate 6, the pressing plate 6 is provided with a bottom base surface 61 and two side base surfaces 62, a positioning node 61-a for limiting the piston rod 4 in the final assembly position of the pressing plate 6 is arranged on the bottom base surface 61, a locking unit 7 capable of switching a locking state/an unlocking state is arranged on each side base surface 62, and a locking node 42 combined with the locking unit 7 in the final assembly position is arranged on the outer peripheral surface of the piston rod 4. The principle of the present utility model is that the locking/unlocking of the piston rod 4 is achieved by operating the locking unit 7 to achieve quick replacement when the platen 6 needs replacement, a toolless, non-componentized operation mode of assembly is achieved compared to the prior art, and there is no hidden trouble of difficult disassembly due to rust of screws.

The positioning nodes 61-a include a combining wall 61-a1 formed on the bottom base surface 61 and extending into the platen 6, and a movable space 61-a2 defined within the combining wall 61-a1 and allowed to be therein; the engaging wall 61-a1 abuts against the piston rod 4 in the assembling direction and in the direction opposite to the assembling direction, but when the piston rod 4 enters the positioning joint 61-a, the engaging wall 61-a1 can contact with the outer peripheral surface of the piston rod 4 and slide relatively to avoid the piston rod 4 from swinging during sliding, and also to ensure the stability of use of the pressing plate 6 during use. In one embodiment, the positioning nodes 61-a represent through holes provided on the platen 6, the walls of which form the enclosing walls 61-a1, and the space into which the piston rod 4 is allowed to enter forms the movable space 61-a2.

The side base surface 62 is provided with a guide structure 8, a first guide channel 81 extending and penetrating along the height direction of the guide structure 8 is arranged in the guide structure 8, the locking unit 7 is provided with a first guide body 9, so that the first guide body 9 is placed in the first guide channel 81 and moves along the first guide channel to be used for switching the locking state/unlocking state of the locking unit 7, the guide structure 8 is used for defining the using mode of the locking unit 7 during locking/unlocking, the first guide body 9 moves in the first guide channel 81, and the first guide body 9 is arranged in the locking unit 7, so that the locking unit 7 also switches locking/unlocking by means of movement. In the present embodiment, the guide structure 8 is a rectangular block extending in the width direction of the locking unit 7, the first guide passage 81 is of a circular configuration, and the first guide body 9 is of a cylinder, so that the first guide body 9 can relatively move while moving in the first guide passage 81, and no swing occurs.

The locking unit 7 includes an operating body 71, and a lock cylinder 72; the operating body 71 has an assembling engaging surface 71-a contacting the corresponding side base surface 62, the assembling engaging surface 71-a is provided with an upper mounting area 71-a1, a lower limiting area 71-a2 and a dividing block 71-a3 dividing the two on the operating body 71, the first guide body 9 is disposed in the upper mounting area 71-a1 and connected to the operating body 71 and the dividing block 71-a3 at both ends, the side base surface 62 is further provided with a passage 62-a extending into the positioning node 61-a, the lock cylinder 72 is disposed in the passage 62-a and moves to engage the lock cylinder 72 with the locking node 42 in the locked state and the lock cylinder 72 with the lower limiting area 71-a2 in the unlocked state, the operating body 71 is used as an operating member for switching the locked/unlocked state, and the smoothness of movement is increased by the contact of the assembling engaging surface 71-a and the side base surface 62, the lock cylinder 72 serves as a core member for achieving the locked state, and the upper mounting area 71-a1 provides a space for not only the guide structure 8, the first guide body 9, but also the inner side wall thereof can be brought into contact with the outer side wall of the guide structure 8 to avoid the operation body 71 from being deformed by compression when the operation body 71 is influenced by the force for driving the movement thereof (i.e., the force pressing inward and downward), which is made of a plastic material, the lower limiting area 71-a2 enables the lock cylinder 72 to be placed in after being separated from the locking node 42 in the unlocked state, because the passage 62-a matches the lock cylinder 72 only in height and does not match the lock cylinder in length, and the lower limiting area 71-a2 and the passage 62-a are placed in a dislocation when the lock cylinder 72 is in the locked state, that is, the opening on the side of the passage 62-a is blocked by the fitting surface 71-a, a restraining force which can be stably present in the lock joint 42 is generated to the lock cylinder 72, and the partition block 71-a3 provides the installation of the first guide body 9 while partitioning the space. In this embodiment, the lock cylinder 72 is a spherical ball and the locking node 42 is an arcuate slot that fits the shape of the spherical ball.

According to the above manner, when the locking unit 7 is in the locked state, the operation body 71 is not moved, the assembly mating surface 71-a is in contact with the side base surface 62, and is blocked at the left opening of the passage 62-a so that the lock cylinder 72 is coupled with the locking node 42; when the lock unit 7 is in the unlocked state, the operation body 71 is moved to release the blocking of the left opening of the passage 62-a, and the piston rod 4 is also moved to bring the lock cylinder 72 out of contact with the outer peripheral surface of the piston rod 4 at the lock joint 42, thereby pressing the lock cylinder 72 to be exposed outside the left opening after being out of the right opening of the passage 62-a, so that the lock cylinder 72 is brought into the lower limit area 71-a2, thereby achieving unlocking.

The first guide body 9 is further sleeved with an elastic unit 10, the upper installation area 71-a1 is provided with a stopping base surface 71-a11 on the operation main body 71, one end of the elastic unit 10 is supported on the stopping base surface 71-a11, the other end of the elastic unit is supported on the separation block 71-a3, and the elastic unit 10 is a spring and mainly has the effect of enabling the locking unit 7 to have an autonomous reset function, namely, the locking unit is only required to be forced immediately when unlocked, and thus the stability when locked can be increased.

The passage 62-a defines a locking guide direction and an unlocking guide direction, the passage 62-a is divided into a limiting portion 62-a1 and a sliding portion 62-a2 along the unlocking guide direction to the locking guide direction, the lock cylinder 72 is partially exposed out of the passage 62-a when combined with the locking node 42 or the lower limiting region 71-a2, and when the lock cylinder 72 reaches the limiting portion 62-a1, the lock cylinder 72 and the limiting portion 62-a1 generate extrusion force, the limiting portion 62-a1 is only present in Jie Suoduan, so that the lock cylinder 72 can be entered from one side of the passage 62-a at the locking end, the sliding portion 62-a2 matches the outer diameter of the lock cylinder 72 in terms of its height, thereby realizing that the lock cylinder 72 moves in the passage 62-a, the limiting portion 62-a1 cannot match the outer diameter of the lock cylinder 72, and is slightly smaller than the lock cylinder 72, thereby avoiding that the lock cylinder 72 cannot come out from the passage 62-a when placed in the lower limiting region 71-a 2.

The lower limiting area 71-a2 is further provided with a prompting hole 71-a21 for the part of the lock cylinder 72 exposed outside the channel 62-a to enter, so that the lock cylinder can be obviously perceived by a user, a corresponding prompting effect can be achieved, the user can predict that the lock cylinder 72 is already placed in the lower limiting area 71-a2 and realize unlocking, and the user can avoid error judgment.

The guide structure 8 is further provided with second guide channels 82 symmetrically distributed on two sides of the first guide channel 81, the second guide channels 82 are used for placing the second guide bodies 20 and moving along the second guide channels, the second guide bodies 20 are arranged in the upper installation area 71-a1, two ends of the second guide bodies 20 are respectively connected with the operation main body 71 and the separation blocks 71-a3, the arrangement mode of the second guide bodies 20 is consistent with that of the first guide bodies 9, and the second guide bodies are mainly used for compensating the general problem of movement fluency caused by wider operation main body 71, so that the locking unit 7 can rapidly switch the locking state/unlocking state.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a but gyration cylinder of quick replacement rocking arm, includes cylinder body (1), base (2) and by the accommodation space that cylinder body (1) and base (2) formed, set up piston (3) and piston rod (4) in the accommodation space, piston rod (4) have continuous guide slot (41), guide pin (5) can pass base (2) and slide in guide slot (41), its characterized in that: the novel piston rod assembly device comprises a piston rod (4) and is characterized by further comprising a pressing plate (6), wherein the pressing plate (6) is provided with a bottom base surface (61) and two side base surfaces (62), positioning nodes (61-a) for limiting the piston rod (4) to be at the final assembly position of the pressing plate (6) are arranged on the bottom base surface (61), locking units (7) capable of switching locking states/unlocking states are arranged on each side base surface (62), and locking nodes (42) combined with the locking units (7) at the final assembly position are arranged on the peripheral surface of the piston rod (4).

2. The rotary cylinder of claim 1 wherein the rocker arm is quickly replaceable, wherein: the positioning node (61-a) comprises a peripheral wall (61-a 1) formed in the bottom base surface (61) and extending into the platen (6), and a movable space (61-a 2) defined within the peripheral wall (61-a 1) and allowed to be therein; the surrounding wall (61-a 1) is abutted against the piston rod (4) in the assembling direction and in the direction opposite to the assembling direction.

3. The rotary cylinder of claim 1 wherein the rocker arm is quickly replaceable, wherein: the side base surface (62) is provided with a guide structure (8), a first guide channel (81) extending along the height direction of the guide structure (8) and penetrating through the guide structure is arranged in the guide structure (8), and the locking unit (7) is provided with a first guide body (9) so that the first guide body (9) is arranged in the first guide channel (81) and moves along the first guide channel to be used for switching the locking state/unlocking state of the locking unit (7).

4. A revolving cylinder with a quick-change rocker arm according to claim 3, wherein: the locking unit (7) comprises an operating body (71) and a lock cylinder (72); the operating body (71) is provided with an assembling matching surface (71-a) contacted with the corresponding side base surface (62), the assembling matching surface (71-a) is provided with an upper mounting area (71-a 1), a lower limiting area (71-a 2) and a separating block (71-a 3) for separating the upper mounting area (71-a 1) on the operating body (71), the first guide body (9) is arranged in the upper mounting area (71-a 1) and two ends of the first guide body are respectively connected with the operating body (71) and the separating block (71-a 3), a channel (62-a) extending into the positioning node (61-a) is further arranged on the side base surface (62), and the lock cylinder (72) is arranged in the channel (62-a) and moves so as to be combined with the lock cylinder (72) in a locking state and the lock cylinder (72) is combined with the lower limiting area (71-a 2) in an unlocking state.

5. The quick-change rocker arm swivel cylinder of claim 4 wherein: the first guide body (9) is further sleeved with an elastic unit (10), the upper installation area (71-a 1) is provided with a stopping base surface (71-a 11) on the operation main body (71), one end of the elastic unit (10) is supported on the stopping base surface (71-a 11), and the other end of the elastic unit is supported on the separation block (71-a 3).

6. The quick-change rocker arm swivel cylinder of claim 4 wherein: the channel (62-a) defines a locking guide direction and an unlocking guide direction, the channel (62-a) is divided into a limiting part (62-a 1) and a sliding part (62-a 2) along the unlocking guide direction to the locking guide direction, and when the lock cylinder (72) is combined with the locking node (42) or the lower limiting area (71-a 2), part of the lock cylinder (72) is exposed out of the channel (62-a), and when the lock cylinder (72) reaches the limiting part (62-a 1), the lock cylinder (72) and the limiting part (62-a 1) generate extrusion force.

7. The quick-change rocker arm swivel cylinder of claim 6 wherein: the lower delimited area (71-a 2) is further provided with a prompt hole (71-a 21) in the operating body (71) for the entry of the portion of the lock cylinder (72) exposed outside the channel (62-a).

8. The quick-change rocker arm swivel cylinder of claim 4 wherein: the guide structure (8) is also provided with second guide channels (82) which are symmetrically distributed on two sides of the first guide channel (81), the second guide channels (82) are used for placing second guide bodies (20) and moving along the second guide bodies, the second guide bodies (20) are arranged in the upper installation area (71-a 1), and two ends of the second guide bodies are respectively connected with the operation main body (71) and the separation blocks (71-a 3).