CN114131392A

CN114131392A - Large-cylinder-diameter piston machining tool clamp

Info

Publication number: CN114131392A
Application number: CN202111676499.4A
Authority: CN
Inventors: 李昊波; 李伟康; 李伟健; 崔彪; 李希磊
Original assignee: Shandong Zhongchuang Heavy Industry Technology Co ltd
Current assignee: Shandong Zhongchuang Heavy Industry Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-03-04

Abstract

The invention relates to the technical field of tool clamp equipment, and discloses a large-cylinder-diameter piston machining tool clamp. The inside of frock main part is provided with the positioning disk, and the back threaded connection of positioning disk has vertical adjusting screw and vertical adjusting screw to run through the back outer wall of frock main part, and screw fixedly connected with tapering connection pad is passed through to the bottom of frock main part, can adjust the work piece through vertical adjusting screw and horizontal adjusting screw, can fix the work piece through positioning disk, pressure disk and housing screw, can rectify the work piece through alignment round pin axle and alignment board. The clamping device has the advantages of being simple in structure, convenient to use, capable of greatly saving clamping time of workpieces while keeping high positioning precision, improving production efficiency, reducing production cost, capable of processing multiple parts through one-time clamping, reducing clamping times of the workpieces and errors accumulated in clamping positioning, and improving machining precision and machining quality of the workpieces.

Description

Large-cylinder-diameter piston machining tool clamp

Technical Field

The invention relates to the field of machining tools, in particular to a large-cylinder-diameter piston machining tool clamp.

Background

The piston is a reciprocating element in the cylinder body of the automobile engine. The function of the device is to bear the combustion pressure in the cylinder and transmit the pressure to the connecting rod through the pin seat and the piston pin, thereby completing the conversion from the internal energy of gasoline combustion to the kinetic energy. The size of the piston depends on the diameter of the cylinder, and a special tool clamp is required for processing the large-diameter piston.

The existing engine large-cylinder-diameter piston is processed mostly by adopting a traditional processing method, each hole needs to be separately and independently processed, and each process needs to be provided with a set of clamp. The large-cylinder-diameter piston machining tool clamp has the advantages that the production efficiency is low due to multiple working procedures and complex tool use, and meanwhile, the workpiece needs to be fixed every time one working procedure is carried out, so that the clamping and positioning times are increased, errors accumulated in multiple times of clamping and positioning are increased, the product quality is difficult to guarantee, and the large-cylinder-diameter piston machining tool clamp is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a large-bore piston machining tool clamp to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a big cylinder diameter piston processing frock clamp, includes frock main part and piston work piece, the inside of frock main part is provided with the positioning disk, the back threaded connection of positioning disk has vertical adjustment screw and vertical adjustment screw to run through the back outer wall of frock main part, the equal threaded connection in both sides of positioning disk has lateral adjustment screw and lateral adjustment screw to run through the lateral wall of frock main part, the bottom of frock main part is through screw fixedly connected with tapering connection pad, the front end threaded connection of frock main part has compression screw, the piston top surface of piston work piece is provided with the pressure disk, compression screw and pressure disk looks butt, the piston pin hole of piston work piece is pegged graft and is had alignment round pin axle, the one end fixedly connected with alignment board that the piston pin hole was kept away from to the alignment round pin axle.

Preferably, the positioning disc is matched with the spigot end of the piston skirt part of the piston workpiece.

Preferably, the number of the vertical adjustment screws is four.

Preferably, the taper connecting disc is matched with a taper hole of the external lathe spindle.

(III) advantageous effects

Compared with the prior art, the invention provides a large-cylinder-diameter piston machining tool clamp which has the following beneficial effects:

this big cylinder diameter piston processing frock clamp can fix with the tapering hole of outside engine lathe main shaft through the tapering connection pad for the practicality of device improves greatly. The workpiece can be adjusted front and back up and down in advance through the vertical adjusting screw and the transverse adjusting screw, the workpiece can be fixed through the positioning plate, the pressure plate and the compression screw, and the workpiece can be corrected through the aligning pin shaft and the aligning plate.

The special tool has the advantages of simple structure, convenience in use and higher positioning precision, and is subversive innovation of the original processing technology. By using the tool, a plurality of parts can be machined by one-time clamping, the original 6-step machining contents of the clamp spring groove, the finish boring pin hole, the milling inner gear, the turning pin hole end face, the pin hole outer circle chamfer and the pin hole inner gear chamfer are combined into one-step machining, the clamping time of a workpiece is greatly saved, the production efficiency is improved exponentially, the production cost is reduced, the machining of a plurality of parts can be carried out by one-time clamping, the clamping times of the workpiece and the errors accumulated in the clamping positioning are reduced, and the machining precision and the machining quality of the workpiece are improved.

Drawings

FIG. 1 is a schematic longitudinal sectional view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a rear view of the present invention;

in the figure: 1. a tool main body; 2. a piston workpiece; 3. positioning a plate; 4. a vertical adjustment screw; 5. a lateral adjustment screw; 6. a taper connecting disc; 7. a compression screw; 8. a platen; 9. aligning the pin shaft; 10. and (5) aligning the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the invention provides a technical scheme of a large-cylinder-diameter piston machining tool clamp, which comprises a tool main body 1 and a piston workpiece 2, wherein the tool main body 1 is a frame structure which is formed by steel plates, five surfaces of the frame structure are closed, one surface of the frame structure is open, and joints of the frames are positioned by steps and are fastened and connected by screws. The tool main body 1 is internally provided with a positioning disc 3, the positioning disc 3 is matched with a spigot end of a piston skirt part of the piston workpiece 2, the bottom of the tool main body 1 is fixedly connected with a taper connecting disc 6 through a screw, and the taper connecting disc 6 is matched with a taper hole of an external lathe spindle. The front end threaded connection of frock main part 1 has housing screw 7, and the piston top surface of piston work piece 2 is provided with pressure disk 8, and housing screw 7 and pressure disk 8 looks butt can be fixed simple operation, convenient and fast to the work piece through positioning disk 3, pressure disk 8 and housing screw 7. An alignment pin shaft 9 is inserted into a piston pin hole of the piston workpiece 2, one end, far away from the piston pin hole, of the alignment pin shaft 9 is fixedly connected with an alignment plate 10, the piston workpiece 2 can be corrected through the alignment pin shaft 9 and the alignment plate 10, and the positioning precision of the piston workpiece 2 is improved.

As shown in fig. 2 and 3, the two sides of the positioning plate 3 are respectively in threaded connection with a transverse adjusting screw 5, the transverse adjusting screws 5 penetrate through the side wall of the tool main body 1, the back of the positioning plate 3 is in threaded connection with a vertical adjusting screw 4, the vertical adjusting screw 4 penetrates through the outer wall of the back of the tool main body 1, the number of the vertical adjusting screws 4 is four, the piston workpiece 2 can be adjusted in front and back up and down in advance through the vertical adjusting screws 4 and the transverse adjusting screws 5, and the positioning accuracy of the piston workpiece 2 is further improved.

The working principle of the device is as follows: the tool main body 1 is fixedly connected with a spindle taper hole of an external lathe through a taper connecting disc 6, then a piston skirt part spigot end of a piston workpiece 2 is arranged on a positioning disc 3, an alignment pin shaft 9 is inserted into a piston pin hole of the piston workpiece 2, the plane of an alignment plate 10 is aligned and attached with a tool frame of the tool main body 1, a pressure plate 8 is pressed on the top surface of a piston of the piston workpiece 2, a compression screw 7 is rotated to be abutted against the pressure plate 8 until the piston workpiece 2 is clamped, the piston workpiece 2 can be processed by drawing out the alignment pin shaft 9, the structure is simple, the use is convenient, the clamping time of the workpiece is greatly saved while higher positioning precision is maintained, the production efficiency is improved, the production cost is reduced, and the processing of a plurality of parts can be carried out by one-time clamping, the clamping times of the workpiece and the accumulated errors of clamping and positioning are reduced, the processing precision and the processing quality of the workpiece are improved.

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

Claims

1. The utility model provides a big cylinder diameter piston processing frock clamp, includes frock main part (1) and piston work piece (2), its characterized in that: a positioning disc (3) is arranged in the tool main body (1), a vertical adjusting screw (4) is connected to the back of the positioning disc (3) in a threaded manner, the vertical adjusting screw (4) penetrates through the outer wall of the back of the tool main body (1), both sides of the positioning disc (3) are in threaded connection with transverse adjusting screws (5), the transverse adjusting screws (5) penetrate through the side wall of the tool main body (1), the bottom of the tool main body (1) is fixedly connected with a taper connecting disc (6) through a screw, the front end of the tool main body (1) is in threaded connection with a compression screw (7), a pressure plate (8) is arranged on the top surface of the piston workpiece (2), the compression screw (7) is abutted against the pressure plate (8), an alignment pin shaft (9) is inserted into a piston pin hole of the piston workpiece (2), one end of the aligning pin shaft (9) far away from the piston pin hole is fixedly connected with an aligning plate (10).

2. The large-bore piston machining tool clamp of claim 1, characterized in that: the positioning disc (3) is matched with the spigot end of the skirt part of the piston workpiece (2).

3. The large-bore piston machining tool clamp of claim 1, characterized in that: the number of the vertical adjusting screws (4) is four.

4. The large-bore piston machining tool clamp of claim 1, characterized in that: the taper connecting disc (6) is matched with a taper hole of an external lathe spindle.