CN211103609U

CN211103609U - Piston pin hole processing device

Info

Publication number: CN211103609U
Application number: CN201922105372.1U
Authority: CN
Inventors: 沈雪华
Original assignee: Yuyao Huachen Machinery Co ltd
Current assignee: Yuyao Huachen Machinery Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-28
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a piston pin hole processing device, which comprises a fixed pipe component for fixing a piston pin, wherein the fixed pipe component comprises a cylindrical adsorption pipe, an annular seat plate is arranged on the inner side wall of the upper end opening of the cylindrical adsorption pipe, a flexible high temperature resistant layer is fixed on the annular seat plate in a surrounding manner, a positioning seat for horizontally placing the piston pin is fixedly arranged at the upper end opening of the flexible high temperature resistant layer, a clamping groove is arranged on the positioning seat, and an adsorption hole is arranged in the clamping groove; the lower extreme of cylindricality adsorption tube is equipped with the shrouding, be equipped with the part on the shrouding and insert in the inside trachea of cylindricality adsorption tube, the trachea is connected with outside vacuum generator, install vacuum chuck in the cylindricality adsorption tube, vacuum chuck's inlet end and tracheal upper end intercommunication, vacuum chuck's the end of giving vent to anger is fixed on annular bedplate, and vacuum chuck's the end of giving vent to anger and adsorption holes intercommunication, when treating the piston pin of processing and placing in the draw-in groove, vacuum chuck, flexible high temperature resistant layer and adsorption holes between form the adsorption zone. The abrasion to the surface of the piston pin can be effectively reduced.

Description

Piston pin hole processing device

Technical Field

The utility model relates to a piston pin processing technology field, concretely relates to piston pin hole processingequipment.

Background

The piston pin is a cylindrical pin arranged on the skirt part of the piston, the middle part of the piston pin penetrates through the small end hole of the connecting rod and is used for connecting the piston and the connecting rod, and the function of the piston pin is to transmit the gas acting force born by the piston to the connecting rod or enable the small end of the connecting rod to drive the piston to move together. To reduce weight, piston pins are typically made of high quality alloy steel and are hollow.

When the pin hole of the piston pin is machined, a metal clamp is often used, and the pin hole is machined after the piston pin is tightly clamped. And some piston pins with special purposes have higher requirements on the surface roughness quality of finished products. And if a metal clamp is adopted for rigid clamping on two sides, the abrasion of the outer surface of the piston pin is easily caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defects, the technical scheme adopted by the utility model is to provide a piston pin hole processing device, which comprises a fixed pipe component for fixing a piston pin, wherein the fixed pipe component comprises a cylindrical adsorption pipe, the lower end of the cylindrical adsorption pipe is provided with a sealing plate, an annular seat plate is arranged on the inner side wall of the upper end opening of the cylindrical adsorption pipe, a vacuum chuck is arranged in the cylindrical adsorption pipe, the air outlet end of the vacuum chuck is fixed on the annular seat plate, the sealing plate is provided with an air pipe partially inserted into the cylindrical adsorption pipe, the air inlet end of the vacuum chuck is communicated with the upper end of the air pipe, the lower end of the air pipe is connected with an external vacuum generator, a flexible high temperature resistant layer is fixedly arranged on the annular seat plate in a surrounding manner, the upper end opening of the flexible high temperature resistant layer is fixedly provided with a piston pin positioning seat for horizontally placing the piston pin, a clamping groove is formed in the positioning seat, and an adsorption hole is formed in the clamping groove; and the air outlet end of the vacuum sucker is communicated with the adsorption hole, and when a piston pin to be processed is placed in the clamping groove, an adsorption area is formed among the vacuum sucker, the flexible high-temperature-resistant layer and the adsorption hole.

Furthermore, a plurality of springs located on the inner side of the flexible high-temperature-resistant layer are installed between the annular seat plate and the positioning seat, the stretching and compressing directions of the springs are parallel to the axis of the annular seat plate, and the springs are annularly distributed on the annular seat plate at equal intervals.

Further, fixed pipe assembly still includes the holding frame, the holding frame includes disc bottom plate and a plurality of grip block, and is a plurality of the grip block sets up perpendicularly on the disc bottom plate lateral wall, the cylindricality adsorption tube is fixed in by a plurality of grip block centre gripping on the disc bottom plate, the trachea is followed the disc bottom plate passes and insert in the cylindricality adsorption tube.

Furthermore, the side wall of the cylindrical adsorption tube is provided with an emergency hole which upwards penetrates through the annular seat plate and is communicated with the adsorption area, and a normally closed switch is arranged in the emergency hole.

Further, flexible high temperature resistant layer is ceramic fiber cloth, ceramic fiber cloth's axial cross-section is wavy fold condition.

Furthermore, the number of the adsorption holes is 3-5, the adsorption holes are linearly arranged in the clamping groove at equal intervals, and the aperture of each adsorption hole is 1.5-3.0 mm.

Compared with the prior art the utility model discloses technical scheme's beneficial effect does:

1. the utility model provides a pair of piston pin hole processingequipment, before processing the pinhole, place the piston pin on the draw-in groove, make the lateral wall shutoff of piston pin adsorb the hole, open external connection's vacuum generator, make vacuum chuck evacuation, can inhale tightly with fixed piston pin to vacuum chuck with the position fixing base, it is fixed to the flexible absorption of piston pin lateral wall to form, reduce the wearing and tearing to the piston pin surface, and because connect through flexible high temperature resistant layer between position fixing base and the annular bedplate, so the position fixing base has great moving range, conveniently to taking of piston pin, operation such as get.

2. The spring is connected with the positioning seat and the annular seat plate, the spring can prop open the flexible high-temperature-resistant layer in a normal state, the spring is compressed when the piston pin is adsorbed to be close to the vacuum chuck, and the spring can automatically extend when the piston pin is pressurized and released in the vacuum chuck.

3. The holding frame includes disc bottom plate and grip block, can form the support and stabilize the clamping action to the cylindric adsorption tube in the one end and the lateral part that are close to vacuum chuck, and the stability of structure when promoting whole fixed pipe assembly and using.

4. Open emergent hole on the lateral wall of cylindricality adsorption tube, can get through this emergent passageway under the emergent circumstances such as vacuum chuck blocks up, communicate adsorption zone territory and outside air, release by the tight piston pin of inhaling.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a structural diagram of a piston pin hole machining device according to an embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of the portion B of FIG. 2

Wherein the reference numerals are:

1. the device comprises a cylindrical adsorption tube, 2, a sealing plate, 3, an annular base plate, 4, a vacuum chuck, 5, an air pipe, 6, a flexible high-temperature-resistant layer, 7, a positioning seat, 8, a clamping groove, 9, an adsorption hole, 10, a spring, 11, a clamping frame, 11a, a disc bottom plate, 11b, a clamping strip, 12, an emergency hole, 13 and a normally closed switch.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Example 1

Referring to fig. 1, 2 and 3, the present invention provides a piston pin hole processing device, which comprises a fixing tube assembly for fixing a piston pin, the fixing tube assembly comprises a cylindrical adsorption tube 1, a sealing plate 2 is arranged at the lower end of the cylindrical adsorption tube 1, an annular seat plate 3 is arranged on the inner side wall of the opening at the upper end of the cylindrical adsorption tube 1, a vacuum chuck 4 is arranged in the cylindrical adsorption tube 1, the air outlet end of the vacuum chuck 4 is fixed on the annular seat plate 3, an air tube 5 partially inserted into the cylindrical adsorption tube 1 is arranged on the sealing plate 2, the air inlet end of the vacuum chuck 4 is communicated with the upper end of the air tube 5, the lower end of the air tube 5 is connected with an external vacuum generator, a flexible high temperature resistant layer 6 is fixed on the annular seat plate 3 in a surrounding manner, a positioning seat 7 for horizontally placing the piston pin to be processed is fixedly arranged at the opening at the upper end of the flexible high, an adsorption hole 9 is arranged in the clamping groove 8; and the end of giving vent to anger of vacuum chuck 4 communicates with absorption hole 9, and when treating the piston pin of processing and placing in draw-in groove 8, form the absorption region between vacuum chuck 4, flexible high temperature resistant layer 6 and the absorption hole 9. Wherein, the cylindrical adsorption tube 1, the annular seat plate 3 and the vacuum chuck 4 are coaxially arranged.

Before processing the pinhole, place the piston pin on draw-in groove 8, make the lateral wall shutoff of piston pin adsorb hole 9, open external connection's vacuum generator, make vacuum chuck 4 evacuation, can inhale tightly with fixed piston pin to vacuum chuck 4 with positioning seat 7, it is fixed to form the flexible absorption of piston pin lateral wall, reduce the wearing and tearing to the piston pin surface, and because connect through flexible high temperature resistant layer 6 between positioning seat 7 and the annular bedplate 3, so positioning seat 7 has great moving range, conveniently to taking of piston pin, operation such as get.

Preferably, in this embodiment, the flexible high temperature-resistant layer 6 is a ceramic fiber cloth, and an axial cross section of the ceramic fiber cloth is in a wave-shaped folded state. 3-5 adsorption holes 9 are arranged in the clamping groove 8 at equal intervals in a straight line, and the aperture of the adsorption holes 9 is 1.5-3.0 mm.

Example 2

On the basis of the above embodiment, the present embodiment is designed in an optimized manner, a plurality of springs 10 located inside the flexible high temperature resistant layer 6 are installed between the annular seat plate 3 and the positioning seat 7, the stretching and compressing directions of the springs 10 are parallel to the axis of the annular seat plate 3, and the plurality of springs 10 are annularly distributed on the annular seat plate 3 at equal intervals.

The telescopic spring 10 is used for connecting the positioning seat 7 and the annular seat plate 3, the spring 10 can stretch the flexible high-temperature-resistant layer 6 in a normal state, when the piston pin is adsorbed to be close to the vacuum suction disc 4, the spring 10 is compressed, and when the piston pin is pressurized and released in the vacuum suction disc 4, the spring 10 can automatically extend.

Example 3

In this embodiment, on the basis of the above embodiment, an optimized design is made, the fixed tube assembly further includes a clamping frame 11, the clamping frame 11 includes a disk bottom plate 11a and a plurality of clamping plates 11b, the plurality of clamping plates 11b are vertically disposed on an outer side wall of the disk bottom plate 11a, the cylindrical adsorption tube 1 is clamped and fixed on the disk bottom plate 11a by the plurality of clamping plates 11b, and the air tube 5 passes through the disk bottom plate 11a and is inserted into the cylindrical adsorption tube 1. Can be close to vacuum chuck 4 one end and lateral part to cylindricality adsorption tube 1 formation support and stabilize the clamping action, the stability of structure when promoting whole fixed pipe assembly and using.

Example 4

As shown in fig. 3, in the present embodiment, on the basis of the above-mentioned embodiment, an optimized design is made, an emergency hole 12 is provided on the sidewall of the cylindrical adsorption tube 1, the emergency hole penetrates the annular seat plate 3 upwards and is communicated with the adsorption area, and a normally closed switch 13 is provided in the emergency hole 12.

Open emergent hole 12 on the lateral wall of cylindricality adsorption tube 1, can get through this emergent passageway under the emergent circumstances such as vacuum chuck 4 blocks up, communicate adsorption zone territory and outside air, release the piston pin of being inhaled tightly.

The utility model discloses an improvement lies in the fixed pipe subassembly in the processing of piston pin pinhole, so only having detailed the structure and the theory of operation of fixed pipe subassembly, in addition still should include other subassemblies such as processing platform, pinhole machining tool in the processing of piston pin pinhole, the structure of these subassemblies is the structure commonly used in the trade, and its principle is known for technical personnel in the field, and it is no longer repeated here.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A piston pin hole processingequipment, includes the fixed pipe assembly who is used for fixed piston pin, its characterized in that: the fixing pipe assembly comprises a cylindrical adsorption pipe (1), a sealing plate (2) is arranged at the lower end of the cylindrical adsorption pipe (1), an annular seat plate (3) is installed on the inner side wall of an opening at the upper end of the cylindrical adsorption pipe (1), a vacuum chuck (4) is installed in the cylindrical adsorption pipe (1), the air outlet end of the vacuum chuck (4) is fixed on the annular seat plate (3), an air pipe (5) which is partially inserted into the cylindrical adsorption pipe (1) is arranged on the sealing plate (2), the air inlet end of the vacuum chuck (4) is communicated with the upper end of the air pipe (5), the lower end of the air pipe (5) is connected with an external vacuum generator, a flexible high-temperature-resistant layer (6) is fixedly arranged on the annular seat plate (3) in a surrounding manner, a positioning seat (7) for horizontally placing a piston pin to be processed is fixedly arranged at an opening at the upper end of the flexible high-temperature-resistant, the vacuum chuck is characterized in that a clamping groove (8) is formed in the positioning seat (7), an adsorption hole (9) is formed in the clamping groove (8), the air outlet end of the vacuum chuck (4) is communicated with the adsorption hole (9), and when a piston pin to be processed is placed in the clamping groove (8), an adsorption area is formed among the vacuum chuck (4), the flexible high-temperature-resistant layer (6) and the adsorption hole (9).

2. A piston pin hole machining device according to claim 1, wherein: annular bedplate (3) with install a plurality ofly between positioning seat (7) and be located spring (10) of flexible high temperature resistant layer (6) inboard, the tensile, the compression direction of spring (10) with the axis of annular bedplate (3) is parallel, and is a plurality of spring (10) are equidistant annular distribution and are in on annular bedplate (3).

3. A piston pin hole machining device according to claim 1, wherein: the fixed tube assembly further comprises a clamping frame (11), wherein the clamping frame (11) comprises a disc bottom plate (11a) and a plurality of clamping plates (11b), the clamping plates (11b) are vertically arranged on the outer side wall of the disc bottom plate (11a), the cylindrical adsorption tube (1) is clamped and fixed on the disc bottom plate (11a) through the clamping plates (11b), and the air tube (5) penetrates through the disc bottom plate (11a) and is inserted into the cylindrical adsorption tube (1).

4. A piston pin hole machining device according to claim 1, wherein: the side wall of the cylindrical adsorption tube (1) is provided with an emergency hole (12) which upwards penetrates through the annular base plate (3) and is communicated with the adsorption area, and a normally closed switch (13) is arranged in the emergency hole (12).

5. A piston pin hole machining device according to claim 1, wherein: the flexible high-temperature-resistant layer (6) is made of ceramic fiber cloth, and the axial section of the ceramic fiber cloth is in a wave-shaped folded state.

6. A piston pin hole machining device according to claim 1, wherein: the number of the adsorption holes (9) is 3-5, the adsorption holes are linearly arranged in the clamping groove (8) at equal intervals, and the aperture of each adsorption hole (9) is 1.5-3.0 mm.