CN216177276U - Forged steel piston is automatic to be beaten sign and is used mistake proofing device - Google Patents

Abstract

The utility model relates to an error-proofing device for automatically marking a forged steel piston, belonging to the technical field of marking equipment and comprising a base; the standing plate is fixedly arranged on one side of one end of the base; the marking clamp is fixedly arranged on the standing plate and used for fixing the forged steel piston; and the error-proofing mechanism is arranged on the standing plate and used for identifying the position of the fixed forged steel piston, and subsequent marking operation cannot be carried out when the position of the forged steel piston is incorrect. The marking identification clamp with the error-proof bosses is manufactured by utilizing the shape difference of the bosses at the tops of the thick skirts on the two sides of the piston. The error-proofing boss edge contour part on the marking clamp is designed and manufactured according to the contour of the narrow boss edge contour at the top of the thick skirt of the piston, so that error proofing is effectively carried out, and the automatic marking efficiency is improved.

Description

Forged steel piston is automatic to be beaten sign and is used mistake proofing device

Technical Field

The utility model relates to the technical field of marking equipment, in particular to a mistake proofing device for automatically marking a forged steel piston.

Background

The piston is used as a key part for reciprocating linear motion in an internal combustion engine and is widely applied to the fields of automobiles, engineering machinery, generators, ships and the like. With the continuous improvement of environmental protection requirements, the internal combustion engine develops towards the directions of large cylinder diameter, high compression ratio and low emission, the traditional die-casting aluminum piston cannot meet the use requirements, and the forged steel piston can just meet the development requirements by virtue of the high strength characteristic of the forged steel piston.

In the production and use processes of forged steel piston products, all the products need to be printed with permanent marks in order to ensure the traceability of manufacturing information. The identification content comprises information of a manufacturer of the product, a production batch, a mold number, a raw material furnace number and the like. To ensure the normativity and consistency of product identification, the host client has specific and detailed requirements for the specific location and orientation of the identification. Meanwhile, in order to distinguish the directionality of a product during assembly, an asymmetric structure is generally adopted during product design, bosses at the top of a thick piston skirt are designed into different geometric shapes and sizes for error-proofing identification, and corresponding identification positions and directions are also arranged according to the geometric shapes of the bosses.

At present, the conventional marking method is to make a fixture body which only simply shapes the inner cavity of a product and install the fixture body on a marking carving machine, only fix the inner cavity surface and sleeve a piston on the fixture body, and manually press a switch of the carving machine to mark. The method has the defects that the marking machine needs to be manually started, and simultaneously, the marking position is inaccurate or the direction is wrong frequently, so that the marking rework rate is high, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an error-proofing device for automatically marking a forged steel piston, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a forged steel piston is automatic beats mistake proofing device for sign, includes:

a base;

the standing plate is fixedly arranged on one side of one end of the base;

the marking clamp is fixedly arranged on the standing plate and used for fixing the forged steel piston;

and the error-proofing mechanism is arranged on the standing plate and used for identifying the position of the fixed forged steel piston, and subsequent marking operation cannot be carried out when the position of the forged steel piston is incorrect.

As a further technical solution of the present invention, the error-proofing mechanism includes:

a mistake proofing boss on the marking clamp is arranged and is used for being matched with a narrow boss of the forged steel piston;

the elastic touch piece is slidably arranged in the standing plate;

the induction part is fixedly arranged on the standing plate and matched with the elastic touch part, and the other end of the elastic touch part is sensed by the induction part when the forged steel piston is correctly fixed and abuts against one end of the elastic touch part.

As a further aspect of the present invention, the elastic touch member includes:

the loop bar is inserted on the standing plate and is connected with the standing plate in a sliding way;

the first nut is fixedly arranged at one end of the loop bar close to the marking clamp;

the thimble is fixedly arranged at one end of the first nut, which is far away from the loop bar;

the return spring is sleeved outside the loop bar and arranged between the standing plate and the first nut;

and the second nut is fixedly arranged at one end of the loop bar, which is far away from the first nut.

As a still further aspect of the present invention, the sensing member includes:

the fixing plate is fixedly arranged on one side of the standing plate, which is far away from the marking clamp;

and the normally open type proximity switch is fixedly arranged on the fixing plate and is matched with the second nut.

As a further technical solution of the present invention, the marking jig is fixedly connected to the standing plate by a bolt and a washer.

Compared with the prior art, the utility model has the beneficial effects that:

1. manufacturing a marking clamp with a mistake-proof boss by utilizing the shape difference of bosses at the tops of thick skirts at two sides of a piston, wherein the edge outline part of the mistake-proof boss on the marking clamp is designed and manufactured according to the contour of the edge outline of a narrow boss at the top of the thick skirt of the piston;

2. by utilizing the electromagnetic induction principle of a normally open type proximity switch, in an induction area at the front end of a probe, when a metal object cannot be induced, the proximity switch controls a working circuit of the carving machine to be always in a disconnected state, and the carving machine does not work; when the metal object enters the induction area of the proximity switch, the proximity switch controls the working circuit of the carving machine to be closed, and the carving machine starts to work automatically. The selected proximity switch has stable performance, fast frequency response and long service life.

Drawings

FIG. 1 is a schematic structural view of a forged steel piston;

FIG. 2 is a schematic structural diagram of a mistake proofing device for automatic marking of forged steel pistons;

FIG. 3 is a top view of the error proofing apparatus for automatic marking of forged steel pistons;

FIG. 4 is a side view of a middle standing plate of the error proofing device for automatic marking of forged steel pistons;

FIG. 5 is a top view of the forged steel piston when the automatic marking error-proofing device for the forged steel piston correctly marks the forged steel piston;

FIG. 6 is a top view of a forged steel piston being automatically marked with a false proof device for false marking.

In the figure: the device comprises a forged steel piston A, a forged steel piston A1, a mark position A2, a narrow boss A3, a wide boss B, a proximity switch sensing area B, a 1-standing plate, a 2-base, A3-mark identifying clamp, a 4-thimble, a 5-first nut, a 6-reset spring, a 7-loop bar, A8-second nut, a 9-normally open type proximity switch, a 10-fixing plate, a 11-bolt, a 12-gasket, a 13-mistake-proofing boss, a 14-guide hole and a 15-mounting hole.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The embodiment of the utility model is realized by the mistake proofing device for the automatic marking of the forged steel piston shown in figures 1 to 4, which comprises:

a base 2;

the standing plate 1 is fixedly arranged on one side of one end of the base 2;

the marking clamp 3 is fixedly arranged on the station plate 1 and used for fixing the forged steel piston A;

the mistake proofing mechanism is installed on the standing plate 1 and used for identifying the position of the fixed forged steel piston A, and subsequent marking operation cannot be carried out when the position of the forged steel piston A is incorrect.

In practical application, when marking the marking position A1 of the forged steel piston A, the forged steel piston A is fixed on the marking clamp 3, and the error-proofing mechanism identifies the fixed position. Subsequent marking operation can not be carried out when errors occur, and subsequent marking operation can be carried out only after the fixing position is correct, so that the possibility of marking errors is greatly reduced, and the marking qualification rate and the marking efficiency are improved. In order to be conveniently disassembled and assembled, the marking clamp 3 is fixedly connected with the station plate 1 through a bolt 11 and a gasket 12. Preferably, a plurality of mounting holes 15 are formed in the standing plate 1 to be matched with the bolts 11, so that the standing plate is suitable for forged steel pistons A with different specifications.

As shown in fig. 2, 3, 5 and 6, as a preferred embodiment of the present invention, the error prevention mechanism includes:

the mistake proofing boss 13 on the marking clamp 3 is used for matching with the narrow boss A2 of the forged steel piston A;

the elastic touch piece is slidably arranged in the standing plate 1;

the induction part is fixedly installed on the standing plate 1 and matched with the elastic touch part, and when the forged steel piston A is correctly fixed, the forged steel piston A is abutted against one end of the elastic touch part, and the other end of the elastic touch part is induced by the induction part.

In one aspect of this embodiment, the mistake proofing boss 13 cooperates with the narrow boss a2 of the forged steel piston a to ensure the forged steel piston a to be fixed correctly, at this time, as shown in fig. 5, the narrow boss a2 contacts with one end of the elastic touch piece, and pushes the other end of the elastic touch piece to the sensing area of the sensing piece, and the sensing piece senses and then performs subsequent marking operation. If the position is not sensed, the fixed position is incorrect, at this time, as shown in fig. 6, the wide boss a3 is in contact with the error-proof boss 13 and cannot be in contact with the thimble 4, the position is incorrect, the marking cannot be performed, and the mark needs to be fixed again until the correct fixing is sensed, so that the marking operation cannot be performed.

As shown in fig. 2 to 4, as another preferred embodiment of the present invention, the elastic touch member includes:

the loop bar 7 is inserted on the standing plate 1 and is connected with the standing plate in a sliding way;

the first nut 5 is fixedly arranged at one end, close to the marking clamp 3, of the loop bar 7;

the thimble 4 is fixedly arranged at one end of the first nut 5 far away from the loop bar 7;

the reset spring 6 is sleeved outside the loop bar 7, and the reset spring 6 is arranged between the standing plate 1 and the first nut 5;

and the second nut 8 is fixedly arranged at one end of the loop bar 7 far away from the first nut 5.

In one case of the embodiment, the loop bar 7 is made of metal and is connected with the thimble 4 through threads, and the extending length of the thimble 4 is adjusted through the threads so as to match forged steel pistons A with different specifications; the first nut 5 on the thimble 4 plays a role in locking the thimble 4, and the thimble 4 is prevented from loosening during working; the return spring 6 restricts the sliding of the loop bar 7. In order to ensure the sliding stability, a guide hole 14 in clearance fit with the loop bar 7 is formed in the standing plate 1, and the fit tolerance is C11/h 11; when the forged steel piston A is correctly fixed, the narrow boss A2 contacts with the ejector pin 4 to push the loop bar 7 outwards, the return spring 6 is compressed at the moment, the second nut 8 is pushed to the proximity switch sensing area B, and therefore the sensing part senses the second nut and subsequent marking operation can be carried out. After the marking is finished and the forged steel piston A is taken down, the return spring 6 is reset so as to carry out subsequent marking work, and the second nut 8 can prevent the loop bar 7 from being ejected out of the guide hole 14.

As shown in fig. 2 and 3, as another preferred embodiment of the present invention, the sensing member includes:

the fixing plate 10 is fixedly arranged on one side of the standing plate 1 far away from the marking clamp 3;

and the normally open type proximity switch 9 is fixedly arranged on the fixing plate 10 and is matched with the second nut 8.

In one case of the present embodiment, the normally open type proximity switch 9, which functions to transmit an electromagnetic signal, is installed on the fixed plate 10 with its center at the same height as the center of the guide hole 14 on the station plate 1. Preferably, the maximum sensing distance of the normally-open type proximity switch 9 is 10mm, and the installation adjusting nut of the normally-open type proximity switch 9 is adjusted to enable the distance between the top end of the probe of the normally-open type proximity switch 9 and the edge of the second nut 8 to be smaller than 10mm, so that the sensing sensitivity is ensured.

The working principle is as follows: when marking the sign operation, will mark sign anchor clamps 3 and have the side of mistake proofing boss 13 and install up on standing board 1, according to the concrete size of forged steel piston A, select to beat 15 positions of mounting hole of sign anchor clamps 3, make forged steel piston A thick skirt top boss center and thimble 4 be in same height basically. Through threaded connection, the length of the thimble 4 extending out of the loop bar 7 is adjusted to match the height of the thick skirt of the forged steel piston A.

When the mark is correctly marked, one side of a narrow boss A2 at the top of a thick skirt of the forged steel piston A is upwards sleeved on the clamp and is pressed forwards; a forged steel piston A thick skirt top narrow boss A2 pushes the thimble 4 forward, drives the loop bar 7 and the second nut 8 to move forward while compressing the reset spring 6 and enters the induction area B of the normally open proximity switch 9, the normally open proximity switch 9 controls the closing of the working circuit of the carving machine, and the carving machine carries out automatic marking operation, see figure 5. After the marking identification is finished, the forged steel piston A is taken down, the return spring 6 pushes the loop bar 7 and drives the thimble 4 to reset, and the carving machine enters an out-of-operation state.

When the mark is wrongly printed, one side of a wide boss A3 at the top of a thick skirt of a forged steel piston A is upwards sleeved on the marking clamp 3 and is pressed forward, the mistake-proof boss 13 on the marking clamp 3 interferes with the wide boss A3, the other end of the loop bar 7 cannot be pushed into an induction area B of the normally open type proximity switch 9, the normally open type proximity switch 9 controls a working circuit of the carving machine to be in a disconnected state all the time, and the carving machine cannot work normally, as shown in figure 6.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. The utility model provides an automatic mistake proofing device for sign of beating of forged steel piston which characterized in that includes:

a base;

the standing plate is fixedly arranged on one side of one end of the base;

the marking clamp is fixedly arranged on the standing plate and used for fixing the forged steel piston;

and the error-proofing mechanism is arranged on the standing plate and used for identifying the position of the fixed forged steel piston, and subsequent marking operation cannot be carried out when the position of the forged steel piston is incorrect.

2. The forged steel piston automatic identification mistake proofing device of claim 1, wherein the mistake proofing mechanism comprises:

a mistake proofing boss on the marking clamp is arranged and is used for being matched with a narrow boss of the forged steel piston;

the elastic touch piece is slidably arranged in the standing plate;

the induction part is fixedly arranged on the standing plate and matched with the elastic touch part, and the other end of the elastic touch part is sensed by the induction part when the forged steel piston is correctly fixed and abuts against one end of the elastic touch part.

3. The forged steel piston automatic marking mistake proofing device according to claim 2, wherein the elastic touch piece comprises:

the loop bar is inserted on the standing plate and is connected with the standing plate in a sliding way;

the first nut is fixedly arranged at one end of the loop bar close to the marking clamp;

the thimble is fixedly arranged at one end of the first nut, which is far away from the loop bar;

the return spring is sleeved outside the loop bar and arranged between the standing plate and the first nut;

and the second nut is fixedly arranged at one end of the loop bar, which is far away from the first nut.

4. The forged steel piston automatic identification mistake proofing device of claim 3, wherein the sensing member comprises:

the fixing plate is fixedly arranged on one side of the standing plate, which is far away from the marking clamp;

and the normally open type proximity switch is fixedly arranged on the fixing plate and is matched with the second nut.

5. The forged steel piston automatic marking mistake proofing device according to claim 1, wherein the marking clamp is fixedly connected with the station plate through a bolt and a washer.

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