CN220007649U

CN220007649U - Piston assembly fixture

Info

Publication number: CN220007649U
Application number: CN202321465913.1U
Authority: CN
Inventors: 张军; 杨少华
Original assignee: Foshan Qomo Technology Co ltd
Current assignee: Foshan Qomo Technology Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-11-14
Anticipated expiration: 2033-06-09

Abstract

The utility model discloses a piston assembly tool, which relates to the technical field of piston assembly and comprises a bottom plate, wherein a cylinder barrel is arranged in a mounting hole, a ball head screw is arranged in a thread in a square tooth nut, and a piston ball head pressing block sleeved on the lower part of a ball head at the lower end of the ball head screw is fixedly arranged at the lower part of a piston ball head locking block. According to the utility model, through the matching arrangement of the bottom plate, the mounting hole and the positioning ring, the cylinder barrel and the positioning and fixing of the piston before the assembly can be realized, the concentricity of the piston and the cylinder barrel can be effectively ensured, the purpose of assembling the cylinder barrels and the pistons with different specifications can be realized, and through the matching arrangement of the hand wheel, the ball screw, the nut fixing plate, the Fang Ya nut, the piston ball lock block and the piston ball press block, the assembly process is stable and reliable, the scraping of the piston, the sealing ring and the cylinder barrel can be effectively prevented, the assembly quality is ensured, the assembly operation is simple and convenient, and the assembly work is time-saving and labor-saving.

Description

Piston assembly fixture

Technical Field

The utility model relates to the technical field of piston assembly, in particular to a piston assembly fixture.

Background

Hydraulic cylinders are actuators that reciprocate in hydraulic systems to transmit forces and torque. The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). The device has simple structure and reliable operation. When it is used to realize reciprocating motion, it can eliminate speed reducer, and has no transmission clearance and smooth motion, so that it can be widely used in hydraulic systems of various machines. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between two sides of the effective area of the piston; the hydraulic cylinder basically comprises a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device, wherein the piston is a mechanical part which reciprocates along the axis of the cylinder body in the cylinder body, and the piston is driven by the piston rod to reciprocate in the cylinder barrel.

At present, the piston assembly tool sold on the market is too simple, the clamping reed can not fix the piston, the operation is inconvenient, the clamping reed is easy to damage, the piston, the sealing ring and the cylinder barrel are easy to scrape, and serious quality hidden trouble is brought to the piston, the sealing ring and the cylinder barrel.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a piston assembly tool, which solves the problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the piston assembly fixture comprises a bottom plate, wherein a mounting hole is formed in the middle of the upper surface of the bottom plate, a cylinder barrel is arranged in the mounting hole, a positioning ring is sleeved on the upper part of the cylinder barrel, and a piston is arranged on the upper part of the positioning ring;

the upper surface of bottom plate is located the equal fixed mounting in both sides of mounting hole and has the stand, and the upper end fixed mounting of stand has the nut fixed plate, and the lower surface middle part fixed mounting of nut fixed plate has square tooth nut, and the bulb screw rod is installed to the internal screw thread of square tooth nut, and the upper end fixed mounting of bulb screw rod has the hand wheel, and the lower extreme of bulb screw rod is located the upper portion of bulb and has cup jointed the piston bulb locking piece, and the lower part fixed mounting of piston bulb locking piece cup joints the piston bulb briquetting in bulb lower part of bulb screw rod lower extreme bulb.

Optionally, the mounting hole is echelonment, and the mounting hole is looks adaptation and coaxial with the cylinder.

Optionally, the retainer plate is along the level setting, and the inner circle of retainer plate is echelonment, and the upper and lower part of retainer plate inner circle respectively with piston and cylinder looks adaptation, piston, cylinder and retainer plate are coaxial.

Optionally, the stand is symmetrical distribution in both sides, and the stand sets up along vertical, and nut fixed plate sets up along horizontal.

Optionally, a through hole matched with the ball screw is vertically formed in the middle of the nut fixing plate, and the ball screw is inserted into the through hole in a penetrating manner.

Optionally, the ball screw is vertically arranged, and the ball of the ball screw is located below the square nut.

Optionally, the shape of the piston ball head pressing block is a cylinder and is positioned right above the piston, and the ball head screw rod, the piston ball head pressing block and the mounting hole are coaxial.

The utility model provides a piston assembly tool, which has the following beneficial effects:

according to the piston assembly tool, through the matching arrangement of the bottom plate, the mounting holes and the positioning rings, the cylinder barrel and the piston can be positioned and fixed before assembly, concentricity of the piston and the cylinder barrel is effectively ensured, the cylinder barrel and the piston cannot deviate during assembly, assembly quality is ensured, and the stepped mounting holes can enable the tool to be matched with cylinder barrels of different specifications, so that the purpose of assembling the cylinder barrels and the pistons of different specifications can be achieved;

this piston assembly fixture sets up through the cooperation of hand wheel, bulb screw rod, nut fixed plate, fang Ya nut, piston bulb locking piece and piston bulb briquetting, can accomplish the assembly work through twisting the hand wheel, and the assembly process is not only steady reliable, can effectively prevent to scrape the flower to piston, sealing washer and cylinder, guarantees assembly quality, and easy operation is convenient moreover for assembly work labour saving and time saving is favorable to the normal clear of assembly work.

Drawings

FIG. 1 is a schematic front perspective view of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic view of the present utility model in elevation and partial cross-section;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present utility model;

fig. 5 is a schematic diagram of the front cross-sectional structure of the base plate of the present utility model.

In the figure: 1. a hand wheel; 2. a ball screw; 3. a nut fixing plate; 4. a square tooth nut; 5. a piston ball lock block; 6. pressing a ball head of a piston into a block; 7. a positioning ring; 8. a column; 9. a bottom plate; 10. a piston; 11. a cylinder; 12. a mounting hole; 13. and a through hole.

Description of the embodiments

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.

Examples

Referring to fig. 1 to 3 and fig. 5, the present utility model provides the following technical solutions: the piston assembly fixture comprises a bottom plate 9, wherein a mounting hole 12 is formed in the middle of the upper surface of the bottom plate 9, a cylinder 11 is arranged in the mounting hole 12, the mounting hole 12 is in a stepped shape, the mounting hole 12 is matched with the cylinder 11 and is coaxial, a positioning ring 7 is sleeved on the upper portion of the cylinder 11, a piston 10 is arranged on the upper portion of the positioning ring 7, the positioning ring 7 is horizontally arranged, the inner ring of the positioning ring 7 is in a stepped shape, the upper portion and the lower portion of the inner ring of the positioning ring 7 are respectively matched with the piston 10 and the cylinder 11, and the piston 10, the cylinder 11 and the positioning ring 7 are coaxial.

During the use, before the assembly, firstly place cylinder 11 in the hole site that mounting hole 12 corresponds, then cup joint the retainer plate 7 of corresponding model and place on cylinder 11, and place piston 10 in the inner circle of retainer plate 7 can accomplish the location before the assembly to cylinder 11 and piston 10, effectively guarantee the concentricity of piston 10 and cylinder 11, in order to follow-up assembly work, can not take place the skew between cylinder 11 and the piston 10 during the assembly, guarantee the assembly quality, and set up mounting hole 12 into the echelonment, and make the hole site at every stage and different cylinder 11 looks adaptations, can make this frock adapt to the cylinder 11 of different specifications, consequently can realize the purpose of assembling different specifications of cylinder 11 and piston 10.

Examples

Referring to fig. 1 to 4, the present utility model provides the following technical solutions: the piston assembly fixture comprises a base plate 9, wherein upright posts 8 are fixedly arranged on two sides of a mounting hole 12 on the upper surface of the base plate 9, nut fixing plates 3 are fixedly arranged at the upper ends of the upright posts 8, the upright posts 8 are symmetrically distributed, the nut fixing plates 3 are transversely arranged along the vertical direction, square tooth nuts 4 are fixedly arranged in the middle of the lower surface of the nut fixing plates 3, ball head screw rods 2 are arranged in the inner threads of the square tooth nuts 4, through holes 13 matched with the ball head screw rods 2 are vertically formed in the middle of the nut fixing plates 3, the ball head screw rods 2 penetrate and are inserted into the through holes 13, the ball head screw rods 2 are vertically arranged, the ball heads of the ball head screw rods 2 are located below the square tooth nuts 4, hand wheels 1 are fixedly arranged at the upper ends of the ball head screw rods 2, piston ball head locking blocks 5 are sleeved at the lower ends of the ball head screw rods 2, piston ball head pressing blocks 6 are fixedly arranged at the lower parts of the piston ball head locking blocks 5 in a sleeved mode, the piston ball head pressing blocks 6 are cylindrical and are located right above the ball head pistons 10, and the ball head screw rods 2, the piston pressing blocks 6 are coaxial with the piston pressing rods 12 and the mounting holes 12 are arranged coaxially.

During the use, place cylinder 11 and piston 10 after accomplishing, can drive bulb screw rod 2 through twisting hand wheel 1 and rotate on square tooth nut 4 to drive piston bulb briquetting 6 and move downwards, and push down piston 10 and slide downwards along retainer plate 7, and smooth in to cylinder 11, can accomplish the assembly work, and the assembly process is not only steady reliable, can effectively prevent to scrape flowers to piston 10, sealing washer and cylinder 11, guarantee assembly quality, easy operation is convenient moreover, make assembly work labour saving and time saving, be favorable to assembly work's normal clear.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Piston assembly frock, including the bottom plate, its characterized in that: the middle part of the upper surface of the bottom plate is provided with a mounting hole, a cylinder barrel is arranged in the mounting hole, a positioning ring is sleeved on the upper part of the cylinder barrel, and a piston is arranged on the upper part of the positioning ring;

2. The piston assembly fixture of claim 1, wherein: the mounting holes are stepped, and the mounting holes are matched with the cylinder barrel and coaxial.

3. The piston assembly fixture of claim 1, wherein: the locating ring is horizontally arranged, the inner ring of the locating ring is in a step shape, the upper portion and the lower portion of the inner ring of the locating ring are respectively matched with the piston and the cylinder barrel, and the piston, the cylinder barrel and the locating ring are coaxial.

4. The piston assembly fixture of claim 1, wherein: the stand is symmetrical distribution, and the stand sets up along vertical, and nut fixed plate sets up along horizontal.

5. The piston assembly fixture of claim 1, wherein: the middle part of nut fixed plate is along vertical offered with the through-hole of bulb screw rod looks adaptation, and the bulb screw rod runs through the inside of grafting in the through-hole.

6. The piston assembly fixture of claim 1, wherein: the ball screw is vertically arranged, and the ball of the ball screw is positioned below the square tooth nut.

7. The piston assembly fixture of claim 1, wherein: the ball head pressing block of the piston is cylindrical and is positioned right above the piston, and the ball head screw rod, the ball head pressing block of the piston and the mounting hole are coaxial.