CN219617483U - Air-to-liquid driven clamp system - Google Patents

Abstract

The utility model discloses a clamp system driven by air-rotating liquid, which comprises a clamp and a base, wherein the clamp is fixedly connected to the base, the clamp system further comprises an air cylinder and a plunger cylinder, the plunger cylinder is positioned right above the air cylinder, the air cylinder is used for pushing the plunger cylinder to pump oil, an oil outlet of the plunger cylinder is connected with a hydraulic cylinder through a pipeline, the clamp is provided with an elastic part, the elastic part maintains the clamping state of the clamp, and the hydraulic cylinder is used for driving the clamp to release the clamping state. The utility model has simple structure, low manufacturing cost and convenient use, and does not need to input external driving force for holding in the clamping process. The clamp is self-clamped by the elastic part, hydraulic pressure or air pressure is not required to be maintained in the clamping process, and energy conservation is facilitated; the telescopic action of the hydraulic cylinder can drive the clamp to release the clamping state, and the telescopic action of the hydraulic cylinder is realized by pushing the plunger cylinder to pump oil by the air cylinder.

Description

Air-to-liquid driven clamp system

Technical Field

The utility model relates to the technical field of clamps, in particular to a clamp system driven by air-rotating liquid.

Background

The jig is a device for fixing a machining object in a machine manufacturing process so as to occupy a correct position for performing a construction or a detection. In the existing product processing process, polishing is needed, for example, a plurality of cast parts on an automobile are polished manually, but the production efficiency is low, the working condition is bad, safety accidents frequently happen, and along with the development of technology, the robot is gradually applied to the field of polishing devices.

At present, an automatic clamping assembly line needs to be realized, and a hydraulic zero-leakage coupling joint is often used for communicating a tool and a hydraulic station so as to maintain pressure in the clamping process. The zero leakage coupling joint is high in price and high in accuracy, once the butt joint position is deviated, the butt joint is not smooth, so that the zero leakage coupling joint is damaged, in addition, the zero leakage coupling joint is sensitive to iron dust, as one end of the zero leakage coupling joint enters a polishing area along with a tooling plate, and a circulating medium is hydraulic oil, the surface of the zero leakage coupling joint is left, dust is easy to be stained, and the zero leakage coupling joint can be worn out for a long time, so that oil seepage is caused, and pressure maintaining is invalid.

Disclosure of Invention

The present utility model is directed to a gas-to-liquid driven clamping system, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a gas-liquid driven anchor clamps system, includes anchor clamps and base, anchor clamps fixed connection still includes cylinder and plunger jar on the base, the plunger jar is located the cylinder directly over, the cylinder is used for promoting the plunger jar and realizes the pump oil, and the output hydraulic fluid port of plunger jar is connected with the pneumatic cylinder through the pipeline, anchor clamps are equipped with elastomeric element, and elastomeric element maintains the clamping state of anchor clamps, the pneumatic cylinder is used for driving anchor clamps and releases clamping state.

Preferably, the anchor clamps are expansion sleeve subassembly and are equipped with two, the expansion sleeve subassembly includes barrel casing, direction lid and expansion block, the downside middle part fixedly connected with of direction lid rather than concentric guide arm, the guide arm runs through from the middle part of barrel casing, expansion block is equipped with a plurality of and along circumference evenly distributed, and expansion block articulates there is head rod, second connecting rod, and the upper end and the direction lid of head rod are articulated, and the lower extreme and the barrel casing of second connecting rod are articulated, spring a has been cup jointed to the lower extreme cover of guide arm, and spring a applys decurrent pulling force to the guide arm and realizes expanding tightly.

Preferably, the lower end of the sleeve is fixedly connected with a bottom plate, the guide rod is matched with the inner cavity of the sleeve, the guide rod is a stepped shaft with the diameter of the lower end smaller, and the lower end of the guide rod penetrates through the bottom plate and is in sliding connection with the bottom plate.

Preferably, the lower extreme of guide arm is installed circular shape pretension board through adjusting bolt, spring a's lower extreme and pretension board fixed connection, spring a's upper end and bottom plate fixed connection, twist and change adjusting bolt and can adjust spring a's compression degree, adjusting bolt's lower terminal surface and the piston contact of pneumatic cylinder.

Preferably, the fixture is a compression assembly, the compression assembly comprises a cylinder body and a compression bar, the middle part of the compression bar is hinged through a pin shaft, a penetrating piston is connected in the cylinder body in a sliding manner, the rear end of the piston is connected with a hydraulic cylinder, the elastic component is a spring b, the spring b applies an outward thrust to the piston, and the outer end of the piston is movably connected with the compression bar to push the compression bar to overturn so as to achieve compression.

Preferably, the lower extreme of depression bar is equipped with the waist round hole, the outer end of piston is equipped with the round pin post, the round pin post runs through waist round hole and with its sliding connection, the upper end fixed mounting of depression bar has rather than vertically compresses tightly the post.

Compared with the prior art, the utility model has the beneficial effects that: the clamp is self-clamped by the elastic part, and hydraulic pressure or air pressure is not required to be maintained in the process of clamping a workpiece, so that the clamp is beneficial to energy conservation, and a pure mechanical structure is not easy to fail; the telescopic action of the hydraulic cylinder can drive the clamp to release the clamping state, and the telescopic action of the hydraulic cylinder is realized by pushing the plunger cylinder to pump oil by the air cylinder. The system has the advantages of simple structure, low manufacturing cost and convenient use, and compared with hydraulic oil, the compressed air is used as a medium and is not affected by polishing dust.

Drawings

FIG. 1 is a schematic side sectional view of a first embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an expansion shell assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic front view of an expansion shell assembly according to an embodiment of the present utility model;

fig. 4 is a schematic perspective view of a first embodiment of the present utility model;

FIG. 5 is a schematic top view of a pressing assembly according to a second embodiment of the present utility model;

FIG. 6 is a schematic front view of a pressing assembly according to a second embodiment of the present utility model;

FIG. 7 is a schematic cross-sectional view taken at A-A of FIG. 6.

In the figure: 1. a cylinder; 2. an expansion sleeve assembly; 21. a sleeve; 22. a guide cover; 23. a swelling block; 24. a first connecting rod; 25. a guide rod; 26. a bottom plate; 27. a spring a; 28. a pre-tightening plate; 29. an adjusting bolt; 3. a plunger cylinder; 4. a compression assembly; 41. a cylinder; 42. a compression column; 43. a spring b; 44. a piston; 45. a pin; 46. a pin shaft; 47. a compression bar; 5. and a hydraulic cylinder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a gas-liquid driven anchor clamps system, the on-line screen storage device comprises a base, install two on the base and expand the cover subassembly 2, expand the cover subassembly 2 by the pneumatic cylinder 5 drive that is located its bottom, fixed mounting has plunger jar 3 in the base, plunger jar 3 promotes by the cylinder 1 that is located its below, the output hydraulic fluid port of plunger jar 3 is with the pneumatic cylinder 5 for pipe connection, drive plunger jar 3 makes the oil liquid flow to pneumatic cylinder 5 when cylinder 1 extends, pneumatic cylinder 5 jack-up promotes and expands cover subassembly 2, consequently, do not need the hydraulic station as the power supply.

The expansion sleeve assembly 2 comprises a sleeve 21, a guide cover 22 and an expansion block 23, wherein the middle part of the lower side of the guide cover 22 is fixedly connected with a guide rod 25 concentric with the guide cover 22, the guide rod 25 penetrates through the middle part of the sleeve 21, the expansion block 23 is provided with a plurality of expansion blocks and is uniformly distributed along the circumference, the expansion block 23 is hinged with a first connecting rod 24 and a second connecting rod, the upper end of the first connecting rod 24 is hinged with the guide cover 22, the lower end of the second connecting rod is hinged with the sleeve 21, the lower end of the guide rod 25 is sleeved with a spring a27, the spring a27 is in a compressed state, the spring a27 applies downward pulling force to the guide cover 22 through the guide rod 25, so that the expansion block 23 applies outward pushing force along the radial direction, and a casting to be polished can be clamped after being sleeved on the expansion sleeve assembly 2 through a hole on the expansion block.

The lower extreme fixedly connected with bottom plate 26 of barrel casing 21, guide arm 25 and the inner chamber looks adaptation of barrel casing 21, guide arm 25 is the step axle that lower extreme diameter diminish and lower extreme run through bottom plate 26 and rather than sliding connection, circular shape pretension board 28 is installed through adjusting bolt 29 to the lower extreme of guide arm 25, adjusting bolt 29 runs through from pretension board 28's middle part, spring a 27's lower extreme and pretension board 28 fixed connection, spring a 27's upper end and bottom plate 26 fixed connection, twist and change adjusting bolt 29 and can adjust spring a 27's compression degree, and then can adjust the expanding force.

Working principle: the expanding mechanism is in butt joint with a conveying line of the casting, and the casting is clamped and automatically polished by a robot. The hole on the casting is utilized for expanding and fixing, specifically, the cylinder 1 is utilized for pushing the plunger cylinder 3 to enable oil in the plunger cylinder to be conveyed to the hydraulic cylinder 5, the hydraulic cylinder 5 lifts the guide rod 25, the spring a27 is further compressed, the guide cover 22 moves upwards to pull the expanding block 23 to shrink into the range of the guide cover 22, and therefore the cylinder sleeve 21 and the guide cover 22 can be inserted into the hole of the casting. After the decompression and the reset of the air cylinder 1, the compressed spring a27 applies downward tension to the guide rod 25, the expansion block 23 expands along the radial direction to realize expansion and keeps the expansion state until polishing is finished, and the expansion force is only provided by the spring a27, so that the structure is purely mechanical, no cable or pipeline is connected, and the structure is simplified and the installation is convenient.

Example two

The difference from the first embodiment is that: the clamp of the first embodiment is the expansion sleeve assembly 2, while the clamp of the present embodiment is the compression assembly 4, and the rest parts are the same, and will not be described in detail. The fixture is a compression assembly 4, the compression assembly 4 comprises a cylinder 41 and a compression bar 47, the middle part of the compression bar 47 is hinged through a pin shaft 46, a penetrating piston 44 is connected in a sliding manner in the cylinder 41, an elastic component is a spring b43, the spring b43 applies outward thrust to the piston 44, a waist round hole is formed in the lower end of the compression bar 47, a pin 45 is arranged at the outer end of the piston 44, the pin 45 penetrates through the waist round hole and is connected with the waist round hole in a sliding manner, a compression column 42 perpendicular to the compression column is fixedly arranged at the upper end of the compression bar 47, the compression bar 47 is pushed to overturn by the spring b43, the compression column 42 abuts against the surface of a workpiece to achieve compression, and the compression bar 47 can be pulled to overturn by shrinkage of the hydraulic cylinder 5 to relieve clamping of the workpiece.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a gas-to-liquid driven anchor clamps system, includes anchor clamps and base, anchor clamps fixed connection is on the base, its characterized in that: still include cylinder (1) and plunger jar (3), plunger jar (3) are located directly over cylinder (1), cylinder (1) are used for promoting plunger jar (3) and realize the pump oil, and the output hydraulic fluid port of plunger jar (3) is connected with pneumatic cylinder (5) through the pipeline, the anchor clamps are equipped with elastomeric element, and elastomeric element maintains the clamping state of anchor clamps, pneumatic cylinder (5) are used for driving anchor clamps and release clamping state.

2. A gas-to-liquid driven clamp system according to claim 1, wherein: the fixture is expansion sleeve assembly (2) and is provided with two, the expansion sleeve assembly (2) comprises a sleeve (21), a guide cover (22) and expansion blocks (23), a guide rod (25) concentric with the guide cover (22) is fixedly connected to the middle of the lower side of the guide cover, the guide rod (25) penetrates through the middle of the sleeve (21), the expansion blocks (23) are provided with a plurality of expansion rods and are uniformly distributed along the circumference, the expansion blocks (23) are hinged with a first connecting rod (24) and a second connecting rod, the upper end of the first connecting rod (24) is hinged with the guide cover (22), the lower end of the second connecting rod is hinged with the sleeve (21), a spring a (27) is sleeved at the lower end of the guide rod (25), and the spring a (27) applies downward tension to the guide rod (25) to realize expansion.

3. A gas-to-liquid driven clamp system according to claim 2, wherein: the lower end of the barrel sleeve (21) is fixedly connected with a bottom plate (26), a guide rod (25) is matched with the inner cavity of the barrel sleeve (21), the guide rod (25) is a stepped shaft with the diameter of the lower end smaller, and the lower end of the guide rod (25) penetrates through the bottom plate (26) and is in sliding connection with the bottom plate.

4. A gas-to-liquid driven clamp system according to claim 3, wherein: the lower extreme of guide arm (25) is installed circular shape pretension board (28) through adjusting bolt (29), the lower extreme and the pretension board (28) fixed connection of spring a (27), the upper end and the bottom plate (26) fixed connection of spring a (27), twist and change adjusting bolt (29) and can adjust the compression degree of spring a (27), the lower terminal surface of adjusting bolt (29) and the piston contact of pneumatic cylinder (5).

5. A gas-to-liquid driven clamp system according to claim 1, wherein:

the clamp is a compression assembly (4), the compression assembly (4) comprises a cylinder body (41) and a compression rod (47), the middle part of the compression rod (47) is hinged through a pin shaft (46), a piston (44) penetrating through the cylinder body (41) is connected in a sliding mode, the rear end of the piston (44) is connected with a hydraulic cylinder (5), the elastic component is a spring b (43), the spring b (43) applies an outward thrust to the piston (44), and the outer end of the piston (44) is movably connected with the compression rod (47) to push the compression rod (47) to overturn so as to achieve compression.

6. A gas-to-liquid driven clamp system according to claim 5, wherein: the lower extreme of depression bar (47) is equipped with the waist round hole, the outer end of piston (44) is equipped with round pin post (45), round pin post (45) run through the waist round hole and with its sliding connection, the upper end fixed mounting of depression bar (47) has compression column (42) rather than perpendicular.