CN219113445U

CN219113445U - Special equipment for processing special-shaped pin holes of steel pistons

Info

Publication number: CN219113445U
Application number: CN202223182325.5U
Authority: CN
Inventors: 闻祝龙; 汪明辉; 刘玉友
Original assignee: Hefei Hanwei Precision Manufacturing Co ltd
Current assignee: Hefei Hanwei Precision Manufacturing Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-06-02
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses special equipment for machining special-shaped pin holes of steel pistons, which relates to the technical field of piston machining and comprises a base, wherein machining equipment bodies are fixedly arranged on two sides of the top of the base, a lifting mechanism is arranged in the middle of the upper surface of the base, a sleeving mechanism is fixedly arranged at the lifting end of the lifting mechanism, a limiting mechanism is arranged at the middle part of the machining equipment body at the top of the base, a driving mechanism is arranged at the top of the limiting mechanism, a clamping mechanism is connected inside the limiting mechanism in a sliding mode, and the driving mechanism is used for controlling the opening and closing of the clamping mechanism. According to the utility model, the clamping mechanism is controlled to open and close by the driving mechanism, so that the clamping mechanism clamps and fixes the steel piston, and after the clamping is completed, the lifting mechanism drives the sleeving mechanism to descend, so that the sleeving mechanism presses the top end part of the steel piston, the clamping and fixing effect on the steel piston is enhanced, and the piston can be effectively prevented from loosening in the processing process.

Description

Special equipment for processing special-shaped pin holes of steel pistons

Technical Field

The utility model relates to the technical field of piston machining, in particular to special equipment for machining a special-shaped pin hole of a steel piston.

Background

The piston is a part which reciprocates in the cylinder body of the automobile engine, the steel piston is matched with the piston pin through the piston pin hole in use, and transmits the force of the engine to the connecting rod and the crankshaft through the piston pin, and the higher the explosion pressure is, the higher the stress is. The piston pin is deformed due to the stress of the piston pin, so that the piston pin hole is deformed in the design stage to form a special-shaped pin hole (conical surface pin hole, elliptic pin hole and the like) so as to adapt to the deformation of the piston pin and prevent the failure of the piston and the piston pin in the long-term use process.

For example, the Chinese patent publication No. CN211052591U discloses the following technical scheme: the utility model provides an elliptical special-shaped pin hole machining boring machine, which comprises: a bed body; the boring spindle is arranged at one end of the lathe bed, one end of the boring spindle facing the middle of the lathe bed is connected with a boring bar, and a boring cutter is arranged on the boring bar; the elliptical special-shaped pin hole adjusting device is arranged at the bottom of the boring spindle; the sliding table is arranged at the middle position of the lathe bed; the clamping device is arranged on the sliding table; the positioning device is arranged at the other end of the lathe bed and is opposite to the boring spindle; the tail seat height adjusting device is arranged at the bottom of the positioning device. According to the technical scheme, the processing of the elliptical special-shaped pin holes with different ellipticities is realized, the adjusting process is simple, the adjustment is stable, the processing requirement of the elliptical special-shaped pin holes can be effectively realized, the processing angle of the elliptical special-shaped pin holes of the piston is met, the processing quality and the dimensional precision are effectively ensured, the production efficiency is improved, and the production cost is reduced.

The following problems exist in the prior art:

the special equipment for processing the special-shaped pin holes of the steel piston in the prior art has relatively poor fixing effect when the piston is clamped and fixed, the piston is easy to loose in the processing process, and the contact area between the special-shaped pin holes and the clamping part of the clamping equipment is small because the piston is of a circular structure, so that the fixing difficulty is further increased, and inconvenience is brought to the processing.

Accordingly, in view of this, a special device for machining a special-shaped pin hole of a steel piston is currently proposed.

Disclosure of Invention

The utility model provides special equipment for processing a special-shaped pin hole of a steel piston, which aims to solve the problems in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the special equipment for machining the special-shaped pin holes of the steel pistons comprises a base, wherein machining equipment bodies are fixedly arranged on two sides of the top of the base, a lifting mechanism is arranged in the middle of the upper surface of the base, and a sleeving mechanism is fixedly arranged at the lifting end of the lifting mechanism.

The top of base is located processing equipment body middle part and is provided with stop gear, stop gear's top is provided with actuating mechanism, stop gear's inside sliding connection has fixture, actuating mechanism is used for controlling fixture's opening and shutting, stop gear is used for restricting fixture's motion.

The technical scheme of the utility model is further improved as follows: the lifting mechanism comprises a motor, a limit sleeve, a threaded rod and a thread sleeve, wherein the motor is fixedly arranged at the top of the base, the threaded rod is fixedly connected with an output shaft of the motor through a coupler, the limit sleeve is fixedly arranged at the top of the motor, the thread sleeve is connected with the outer wall of the threaded rod in a threaded manner, and the outer wall of the thread sleeve is slidably connected with the inner wall of the limit sleeve.

By adopting the technical scheme, the motor in the scheme can rotate the threaded rod to lift the threaded sleeve, so that the lifting of the sleeving mechanism is realized.

The technical scheme of the utility model is further improved as follows: the sleeving mechanism comprises a connecting frame and a pressing sleeve, wherein the connecting frame is fixedly arranged on the outer wall of the threaded sleeve, the pressing sleeve is fixedly arranged at one end of the connecting frame, and the inner wall of the lower surface of the pressing sleeve is arranged through a chamfer angle.

By adopting the technical scheme, the sleeving mechanism in the scheme can press the top end part of the steel piston, so that the clamping and fixing effects on the steel piston are enhanced.

The technical scheme of the utility model is further improved as follows: the limiting mechanism comprises a supporting plate, supporting columns and limiting frames, the supporting plates are fixedly installed at the top of the base, the supporting columns are fixedly installed on two sides of the short sides of the tops of the supporting plates, and the limiting frames are fixedly installed at one ends of the supporting columns.

By adopting the technical scheme, the limiting frame in the scheme can limit the movement of the clamping mechanism.

The technical scheme of the utility model is further improved as follows: the driving mechanism comprises a cylinder, a trapezoid extrusion block and a sliding rail, wherein the cylinder is fixedly arranged in the middle of the upper surface of the supporting plate, the trapezoid extrusion block is fixedly arranged at the telescopic end of the cylinder, and two mutually symmetrical sliding rails are fixedly arranged on the outer wall of the trapezoid extrusion block.

By adopting the technical scheme, the cylinder in the scheme can drive the trapezoid extrusion block to lift, and the sliding rail is driven to lift together during lifting.

The technical scheme of the utility model is further improved as follows: the clamping mechanism comprises a sliding block, a supporting arm, a limiting block and a clamping block, wherein the sliding block is connected to the outer wall of the sliding rail in a sliding manner, the supporting arm is fixedly arranged on the outer wall of the sliding block, the clamping block is fixedly arranged at the top end of the supporting arm, and the limiting block is fixedly arranged on one side of the supporting arm.

By adopting the technical scheme, the sliding block in the scheme can slide on the outer wall of the sliding rail, and can be pushed to be separated or pulled to be close to each other through the inclined arrangement of the sliding rail, so that the clamping block is opened and closed.

The technical scheme of the utility model is further improved as follows: the outer wall of stopper and the outer wall sliding connection of spacing frame, the stopper is rectangular structure, and the outer wall of stopper and the inner wall of spacing frame closely laminate.

By adopting the technical scheme, the limiting frame in the scheme can limit the movement of the limiting block, so that the movement of the supporting arm is limited.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides special equipment for processing special-shaped pin holes of steel pistons, which is characterized in that the steel pistons to be processed are placed above a clamping mechanism, the clamping mechanism is controlled to open and close by a driving mechanism, the clamping mechanism clamps and fixes the steel pistons under the limit of a limiting mechanism, after the clamping is completed, a sleeving mechanism is driven to descend by a lifting mechanism, the sleeving mechanism presses the top end parts of the steel pistons, the clamping and fixing effects on the steel pistons are enhanced, finally, the special-shaped pin holes of the steel pistons are processed by a processing equipment body, the piston can be effectively prevented from loosening in the processing process, and the fixing effects are increased.

2. According to the special equipment for processing the special-shaped pin holes of the steel pistons, the trapezoidal extrusion blocks are lifted through the expansion and contraction of the air cylinders, the supporting arms drive the clamping blocks to open and close through the mutual limiting cooperation between the limiting frames and the limiting blocks under the action of the sliding rails and the sliding blocks, the steel pistons are clamped through the clamping blocks, the steel pistons can be clamped and fixed rapidly, and the fixing efficiency is high.

3. The special equipment for processing the special-shaped pin holes of the steel pistons provided by the utility model has the advantages that the threaded rod is rotated through the operation of the motor, so that the threaded sleeve slides along the outer wall of the threaded rod, the lifting of the pressing sleeve is realized, the lower surface of the pressing sleeve presses the steel pistons, the auxiliary positioning is carried out on the steel pistons, and the offset in the processing process can be effectively avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the connection structure of the limiting mechanism, the driving mechanism and the clamping mechanism of the present utility model;

FIG. 3 is a schematic view of a lifting mechanism according to the present utility model;

fig. 4 is a schematic structural view of a driving mechanism of the present utility model.

In the figure: 1. a base; 2. a processing equipment body; 3. a lifting mechanism; 31. a motor; 32. a limit sleeve; 33. a threaded rod; 34. a thread sleeve; 4. a sleeving mechanism; 41. a connecting frame; 42. pressing down the sleeve; 5. a limiting mechanism; 51. a support plate; 52. a support column; 53. a limit frame; 6. a driving mechanism; 61. a cylinder; 62. a trapezoidal extrusion block; 63. a slide rail; 7. a clamping mechanism; 71. a sliding block; 72. a support arm; 73. a limiting block; 74. and a clamping block.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-4, the utility model provides special equipment for processing special-shaped pin holes of a steel piston, which comprises a base 1, wherein processing equipment bodies 2 are fixedly arranged on two sides of the top of the base 1, a lifting mechanism 3 is arranged in the middle of the upper surface of the base 1, the lifting mechanism 3 comprises a motor 31, a limit sleeve 32, a threaded rod 33 and a threaded sleeve 34, the motor 31 is fixedly arranged on the top of the base 1, an output shaft of the motor 31 is fixedly connected with the threaded rod 33 through a coupling, the limit sleeve 32 is fixedly arranged on the top of the motor 31, the threaded sleeve 34 is in threaded connection with the outer wall of the threaded rod 33, the outer wall of the threaded sleeve 34 is in sliding connection with the inner wall of the limit sleeve 32, and in the embodiment, the threaded rod 33 can rotate by the operation of the motor 31, so that the threaded sleeve 34 is lifted, and lifting of the sleeving mechanism 4 is realized.

Wherein, elevating system 3's elevating system fixed mounting has cup joint mechanism 4, cup joint mechanism 4 include link 41 and push down cover 42, and the outer wall fixed mounting of thread bush 34 has link 41, and the one end fixed mounting of link 41 pushes down cover 42, pushes down the lower surface inner wall of cover 42 and sets up through the chamfer, in this embodiment, cup joint mechanism 4 can push down the top position of steel piston, strengthens the centre gripping fixed effect to the steel piston.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the top of base 1 is located processing equipment body 2 middle part and is provided with stop gear 5, stop gear 5 includes backup pad 51, support column 52 and spacing frame 53, the top fixed mounting of base 1 has backup pad 51, the equal fixed mounting of top minor face both sides of backup pad 51 has support column 52, the one end fixed mounting of support column 52 has spacing frame 53, the top of stop gear 5 is provided with actuating mechanism 6, actuating mechanism 6 includes cylinder 61, trapezoidal extrusion piece 62 and slide rail 63, the upper surface middle part fixed mounting of backup pad 51 has cylinder 61, the telescopic end fixed mounting of cylinder 61 has trapezoidal extrusion piece 62, the outer wall fixed mounting of trapezoidal extrusion piece 62 has two mutually symmetrical slide rails 63, in this embodiment, cylinder 61 can drive trapezoidal extrusion piece 62 and go up and down, drive slide rail 63 together and go up and down during the lift.

In addition, the inside sliding connection of stop gear 5 has fixture 7, actuating mechanism 6 is used for controlling fixture 7's opening and shutting, fixture 5 is used for restricting fixture 7's motion, fixture 7 includes slider 71, support arm 72, stopper 73 and grip block 74, slide rail 63's outer wall sliding connection has slider 71, slider 71's outer wall fixed mounting has support arm 72, support arm 72's top fixed mounting has grip block 74, one side fixed mounting of support arm 72 has stopper 73, stopper 73's outer wall and the outer wall sliding connection of spacing frame 53, stopper 73 is rectangular structure, and stopper 73's outer wall and the inseparable laminating of the inner wall of spacing frame 53, in this embodiment, spacing frame 53 can carry out the spacing to stopper 73's motion, thereby carry out the spacing to support arm 72's motion, slider 71 can slide at slide rail 63's outer wall, through slide rail 63's slope setting, can promote slider 71 separation or pulling slider 71 to be close to each other, thereby accomplish the opening and shutting of grip block 74.

The working principle of the special equipment for machining the special-shaped pin holes of the steel piston is specifically described below.

As shown in fig. 1-4, a steel piston to be processed is placed above the clamping mechanism 7, the trapezoidal extrusion block 62 is lifted by the expansion and contraction of the air cylinder 61, under the action of the sliding rail 63 and the sliding block 71, the supporting arm 72 drives the clamping block 74 to open and close by mutual limit fit between the limit frame 53 and the limit block 73, the steel piston is clamped by the clamping block 74, the steel piston can be rapidly clamped and fixed, the threaded rod 33 is rotated by the operation of the motor 31, the thread bush 34 slides along the outer wall of the threaded rod 33, lifting of the lower pressing bush 42 is realized, the steel piston is pressed by the lower surface of the lower pressing bush 42, and the special-shaped pin hole of the steel piston is processed by the processing equipment body 2.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. Special equipment for processing special-shaped pin holes of steel pistons comprises a base (1), and is characterized in that: the machining device comprises a base (1), wherein machining equipment bodies (2) are fixedly arranged on two sides of the top of the base (1), a lifting mechanism (3) is arranged in the middle of the upper surface of the base (1), and a sleeving mechanism (4) is arranged at the lifting end of the lifting mechanism (3);

the top of base (1) is located processing equipment body (2) middle part and is provided with stop gear (5), the top of stop gear (5) is provided with actuating mechanism (6), the inside sliding connection of stop gear (5) has fixture (7), actuating mechanism (6) are used for controlling the opening and shutting of fixture (7), stop gear (5) are used for restricting the motion of fixture (7).

2. The special equipment for machining the special pin holes of the steel piston according to claim 1, wherein the special equipment comprises the following components: elevating system (3) are including motor (31), stop collar (32), threaded rod (33) and thread bush (34), the top fixed mounting of base (1) has motor (31), the output shaft of motor (31) passes through shaft coupling fixedly connected with threaded rod (33), the top fixed mounting of motor (31) has stop collar (32), the outer wall threaded connection of threaded rod (33) has thread bush (34), the outer wall of thread bush (34) and the inner wall sliding connection of stop collar (32).

3. The special equipment for machining the special pin holes of the steel piston according to claim 2, wherein the special equipment comprises the following components: the sleeving mechanism (4) comprises a connecting frame (41) and a pressing sleeve (42), the connecting frame (41) is fixedly arranged on the outer wall of the threaded sleeve (34), the pressing sleeve (42) is fixedly arranged at one end of the connecting frame (41), and the inner wall of the lower surface of the pressing sleeve (42) is arranged through a chamfer angle.

4. The special equipment for machining the special pin holes of the steel piston according to claim 1, wherein the special equipment comprises the following components: the limiting mechanism (5) comprises a supporting plate (51), supporting columns (52) and limiting frames (53), the supporting plate (51) is fixedly installed at the top of the base (1), the supporting columns (52) are fixedly installed on two sides of the short sides of the top of the supporting plate (51), and the limiting frames (53) are fixedly installed at one ends of the supporting columns (52).

5. The special equipment for machining the special pin holes of the steel piston according to claim 4, wherein the special equipment comprises the following components: the driving mechanism (6) comprises an air cylinder (61), a trapezoid extrusion block (62) and a sliding rail (63), the air cylinder (61) is fixedly arranged in the middle of the upper surface of the supporting plate (51), the trapezoid extrusion block (62) is fixedly arranged at the telescopic end of the air cylinder (61), and two mutually symmetrical sliding rails (63) are fixedly arranged on the outer wall of the trapezoid extrusion block (62).

6. The special equipment for machining the special pin holes of the steel piston according to claim 5, wherein the special equipment comprises the following components: the clamping mechanism (7) comprises a sliding block (71), a supporting arm (72), a limiting block (73) and a clamping block (74), wherein the sliding block (71) is connected to the outer wall of the sliding rail (63) in a sliding mode, the supporting arm (72) is fixedly arranged on the outer wall of the sliding block (71), the clamping block (74) is fixedly arranged at the top end of the supporting arm (72), and the limiting block (73) is fixedly arranged on one side of the supporting arm (72).

7. The special equipment for machining the special pin holes of the steel piston according to claim 6, wherein the special equipment comprises the following components: the outer wall of stopper (73) and the outer wall sliding connection of spacing frame (53), stopper (73) are rectangular structure, and the outer wall of stopper (73) and the inner wall of spacing frame (53) closely laminate.