CN110253138A - An engine connecting rod cracking groove processing equipment and processing method - Google Patents

Abstract

The invention provides an engine connecting rod cracking groove processing equipment, which adopts a double-station design, which not only realizes the continuous processing operation of the connecting rod, improves the production efficiency, but also ensures the safety of the operating workers; secondly, the manipulator of the processing equipment The laser head rotation motor is used to complete the angle adjustment of the laser head to realize the processing of two symmetrical cracking grooves. Compared with the existing technology, the processing efficiency is higher and the operability is better; in addition, the laser emitting nozzle of the laser head is vertical The center line of rotation of the laser head, that is, the laser emitted by the laser emitting nozzle is perpendicular to the inner wall of the big hole of the connecting rod, so that the reflectivity of the material to the laser can be minimized, the waste of energy can be reduced, and the processing accuracy of the cracking tank can be improved. and molding quality; in addition, the processing equipment also has the advantages of simple structure and low maintenance cost. The invention also provides a processing method based on the above engine connecting rod cracking groove processing equipment, which has the advantages of high precision and good safety.

Description

An engine connecting rod cracking groove processing equipment and processing method

technical field

The invention relates to the technical field of laser cutting, in particular to an engine connecting rod cracking groove processing equipment and processing method.

Background technique

The engine connecting rod cracking processing technology is the latest technology in the international production of connecting rods, and has incomparable advantages over traditional connecting rod processing methods. Before the cracking of the connecting rod, two symmetrical cracking grooves should be formed on both sides of the connecting rod big hole, so that the stress concentration will be generated when the connecting rod is cracked, so as to realize the positioning fracture. It can be seen that the processing of the cracking groove is the key point of the connecting rod cracking processing technology. key core processes. The use of laser to process the cracking groove of automobile connecting rod is the development trend of the current connecting rod cracking processing technology. It has the advantages of narrow slit, fast speed, no tool wear, small processing heat affected zone, less processing procedures, and can greatly improve the quality of cracking. Therefore, it is of great practical significance to develop an automatic device that uses laser to process the cracking groove of the connecting rod.

At present, most domestic and foreign companies and scientific research institutions use Nd:YAG solid-state lasers to research and develop laser processing equipment dedicated to connecting rod cracking grooves. The more common ones are: the laser processing equipment for connecting rod cracking grooves developed by a domestic company uses a single output The laser head has a special laser head swing mechanism to complete the angle rotation of the laser head to complete the processing of the two cracking grooves of the big head hole; the laser grooving equipment designed by a foreign company distributes a laser beam to two focusing devices through a beam splitter On the top, the two focusing devices are distributed across, which can process the cracking grooves on both sides at the same time or separately.

Although the above-mentioned laser processing equipment can realize the automatic processing of the cracking groove of the connecting rod, it still has the following disadvantages:

1. Due to the huge size of the laser head, the cracking groove must be processed at a certain incident angle, causing part of the laser energy to be reflected by the material, so that the energy is not concentrated, the surface of the cracking groove processed is rough, and the energy consumption is also higher;

2. The method of using the swing mechanism to adjust the laser head to realize the processing of the two cracking grooves is low in efficiency and the precision is not high, while the method of using the beam splitter to realize the processing of the two cracking grooves is high in efficiency, but its practicability and operability are not high;

3. There is only a single station, which must be removed after the last connecting rod is processed, and then loaded for processing, and the processing efficiency is low;

4. When loading and unloading, the operator must hold the connecting rod and extend into the laser operation area to load and unload, which poses a great safety hazard.

Contents of the invention

In order to solve the above technical problems, the present invention provides an engine connecting rod cracking groove processing equipment, the processing equipment has lower energy consumption, higher processing accuracy, better safety performance, higher processing efficiency, and a simpler structure, which can be operated Sex is better.

Based on this, the present invention provides a kind of engine connecting rod cracking groove processing equipment, comprising:

A working platform, on which a loading and unloading station and a processing station are arranged;

A station conversion mechanism, the station conversion mechanism is provided with a rotatable conversion platform, the conversion platform is provided with a limiter for fixing the connecting rod, and the limiter can be rotated along with the conversion platform switch back and forth between the loading and unloading station and the processing station;

The manipulator includes a Z-axis translation mechanism, an X-axis translation mechanism and a movable arm, the Z-axis translation mechanism can drive the movable arm to move along the Z axis, and the X-axis translation mechanism can drive the movable arm to move along the X axis. shaft movement, the movable arm is provided with a laser head rotation motor, the output shaft of the laser head rotation motor is vertically downward and is provided with a laser head, and the laser head rotation motor can drive the laser head to rotate at least 180 °, the laser head is provided with a laser emitting nozzle perpendicular to its rotation center line.

As a preferred solution, the station conversion mechanism includes a platform rotating motor, a base and the conversion platform, the platform rotating motor is fixed on the working platform through the base, and the output shaft of the platform rotating motor is vertical Upward, the conversion platform is arranged above the platform rotating motor and is fixedly connected with the output shaft of the platform rotating motor.

As a preferred solution, the loading and unloading station and the processing station are symmetrical with respect to the rotation center line of the conversion platform, and the conversion platform is provided with two limiters, and the two limiters The loading and unloading station and the processing station can be alternately switched along with the rotation of the switching platform.

As a preferred solution, the conversion platform is also provided with a movable baffle separating the two limiting members.

As a preferred solution, the Z-axis translation mechanism includes a Z-axis guide frame and a Z-axis translation motor, the Z-axis guide frame is perpendicular to the working platform, the Z-axis guide frame is provided with a Z-axis guide rail, and the movable arm is vertical The Z-axis guide frame is slidably connected with the Z-axis guide rail, and the Z-axis translation motor is arranged at one end of the Z-axis guide frame for driving the movable arm to move along the Z-axis guide rail.

As a preferred solution, the X-axis translation mechanism includes an X-axis guide frame and an X-axis translation motor, the X-axis guide frame is fixed on the work platform and parallel to the work platform, and the X-axis guide frame is provided with X Axis guide rail, the Z-axis guide frame is perpendicular to the X-axis guide frame and is slidingly connected with the X-axis guide rail, and the X-axis translation motor is arranged at one end of the X-axis guide frame for driving the Z-axis The axis guide frame moves along the X-axis guide rail.

As a preferred solution, the limiting member includes a bottom plate, a small-hole ferrule and a large-hole ferrule, the bottom plate is fixedly connected to the conversion platform, the small-hole ferrule and the large-hole ferrule are arranged on the on the base plate and perpendicular to the base plate.

As a preferred solution, it also includes a jacking mechanism, the jacking mechanism includes a cylinder and a support seat, the cylinder is arranged parallel to the work platform and fixed on the work platform through the support seat, and the cylinder's The installation height can be adjusted up and down along the support seat, and the top end of the piston rod of the cylinder is provided with a push block, and the push block can move the connecting rod located in the processing station along with the extension of the piston rod. The top is tight on the said limit piece where it is located.

As a preferred solution, it also includes a dust suction mechanism, the dust suction mechanism is arranged below the conversion platform and is located in the processing station, the dust suction mechanism includes a dust suction pipe and a bracket, and the dust suction pipe passes through The bracket is fixed on the working platform, and the dust suction pipe is provided with a dust suction port and an external interface.

Another object of the present invention is to provide a processing method based on the above-mentioned engine connecting rod cracking groove processing equipment, comprising the steps of:

Place the connecting rod to be processed on the limit piece in the loading and unloading station on the conversion platform;

Rotate the conversion platform to transfer the connecting rod to be processed from the loading and unloading station to the processing station;

The movable arm is driven to translate by the X-axis translation mechanism, and the laser head is translated from the initial position of the X-axis to the processing position of the first cracking groove on the X-axis;

The movable arm is driven down by the Z-axis translation mechanism, and the laser head is lowered from the initial position of the Z-axis until the laser emitting nozzle is flush with the highest position in the Z-axis direction of the inner wall of the big end hole of the connecting rod;

Turn on the laser head, and the laser emitting nozzle starts to emit laser light. At the same time, the movable arm is driven by the Z-axis translation mechanism to continue to descend at a speed matching the laser frequency, until the laser emitting nozzle and the inner wall of the big head hole of the connecting rod are at the lowest position in the Z-axis direction. When it is flush, turn off the laser head, and the laser emitting nozzle stops emitting laser. At this point, the first cracking groove on the inner wall of the big end hole of the connecting rod is processed;

The movable arm is driven up by the Z-axis translation mechanism, and the laser head is raised to the initial position of the Z-axis;

Drive the laser head to rotate 180° by the laser head rotation motor;

Drive the movable arm to translate through the X-axis translation mechanism, and translate the laser head from the processing position of the first cracking groove on the X-axis to the processing position of the second cracking groove on the X-axis;

The movable arm is driven down by the Z-axis translation mechanism, and the laser head is lowered from the initial position of the Z-axis until the laser emitting nozzle is flush with the highest position in the Z-axis direction of the inner wall of the big end hole of the connecting rod;

Turn on the laser head, and the laser emitting nozzle starts to emit laser light. At the same time, the movable arm is driven by the Z-axis translation mechanism to continue to descend at a speed matching the laser frequency, until the laser emitting nozzle and the inner wall of the big head hole of the connecting rod are at the lowest position in the Z-axis direction. When it is flush, turn off the laser head, and the laser emitting nozzle stops emitting laser. At this point, the second cracking groove on the inner wall of the big end hole of the connecting rod is processed;

The movable arm is driven up by the Z-axis translation mechanism, and the laser head is raised to the initial position of the Z-axis;

The movable arm is driven to translate by the X-axis translation mechanism, and the laser head is translated from the processing position of the second cracking groove on the X-axis to the initial position of the X-axis;

Drive the laser head to rotate 180° by the laser head rotation motor to wait for the first cracking groove of the next connecting rod to be processed;

Rotate the conversion platform to transfer the processed connecting rod from the processing station to the loading and unloading station, and at the same time, transfer the next connecting rod to be processed from the loading and unloading station to the processing station;

Remove the finished connecting rod from the loading and unloading station, and then put in a new connecting rod to be processed, so far, the next cycle begins.

Implementing the embodiment of the present invention has the following beneficial effects:

The engine connecting rod cracking groove processing equipment provided by the present invention adopts a double-station design in which the loading and unloading station and the processing station are separated, which not only realizes the continuous processing of the connecting rod, saves the time for loading and unloading, improves the production efficiency, but also improves the production efficiency. It completely eliminates the safety hazard that the operator must hold the connecting rod into the laser operation area for loading and unloading, and ensures the safety of the operator; secondly, the manipulator of the engine connecting rod cracking groove processing equipment uses the laser head rotating motor to complete the angle of the laser head Adjust to realize the processing of two symmetrical cracking grooves. Compared with the existing technology, the processing efficiency is higher and the operability is better; in addition, the laser emitting nozzle of the laser head is perpendicular to the rotation centerline of the laser head, that is, The laser emitted by the laser emitting nozzle is perpendicular to the inner wall of the big head hole of the connecting rod (0°incident angle), which can minimize the reflectivity of the material to the laser, reduce the waste of energy, and improve the processing accuracy and molding quality of the cracking groove; In addition, the engine connecting rod cracking groove processing equipment provided by the present invention also has the advantages of simple structure, low maintenance cost and the like.

The present invention also provides a processing method based on the above engine connecting rod cracking groove processing equipment, which has the advantages of high precision and good safety.

Description of drawings

Fig. 1 is the structural representation of the engine connecting rod cracking groove processing equipment of the embodiment of the present invention;

Fig. 2 is the structural representation of the manipulator of the embodiment of the present invention;

Fig. 3 is the structural representation of the laser head of the embodiment of the present invention;

Fig. 4 is a schematic structural view of a station switching mechanism according to an embodiment of the present invention;

Fig. 5 is the working schematic diagram of the laser head of the embodiment of the present invention;

Fig. 6 is a structural schematic diagram of a limiting member according to an embodiment of the present invention;

Fig. 7 is a schematic structural view of a limiting member according to an embodiment of the present invention;

Fig. 8 is a structural schematic diagram of a jacking mechanism according to an embodiment of the present invention;

Fig. 9 is a schematic structural diagram of a dust suction mechanism according to an embodiment of the present invention.

Explanation of reference signs:

1. Working platform; 11. Fixed baffle; 2. Loading and unloading station; 3. Processing station; 4. Station conversion mechanism; 41. Conversion platform; 42. Limiting parts; 421. Bottom plate; 4211. The first Board part; 4212, second board part; 422, small hole ferrule; 423, large hole ferrule; 43, platform rotating motor; 44, base; 45, movable baffle; 5, manipulator; 51, movable arm; 52 , laser head rotation motor; 53, laser head; 531, laser emitting nozzle; 54, Z-axis guide frame; 55, Z-axis translation motor; 56, X-axis guide frame; 57, X-axis translation motor; 6, jacking mechanism 61, cylinder; 62, support seat; 63, push block; 7, dust suction mechanism; 71, dust suction pipe; 711, dust suction mouth;

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Figures 1 to 5, the embodiment of the present invention provides an engine connecting rod cracking groove processing equipment, which mainly includes a working platform 1, a station conversion mechanism 4 and a manipulator 5; Material station 2 and processing station 3, among them, loading and unloading station 2 is a manual operation position, which is used to load the connecting rod to be processed and unload the processed connecting rod, and processing station 3 is an automatic operation position , used to process the cracking groove of the connecting rod; the station conversion mechanism 4 is provided with a rotatable conversion platform 41, and the conversion platform 41 is provided with a stopper 42 for fixing the connecting rod, and the stopper 42 can be used with the conversion platform The rotation of 41 is switched back and forth between the loading and unloading station 2 and the processing station 3; the manipulator 5 includes a Z-axis translation mechanism, an X-axis translation mechanism and a movable arm 51, and the Z-axis translation mechanism can drive the movable arm 51 to move along the Z axis. The X-axis translation mechanism can drive the movable arm 51 to move along the X axis; the movable arm 51 is provided with a laser head rotating motor 52, the output shaft of the laser head rotating motor 52 is vertically downward and is provided with a laser head 53, and the laser head rotates The motor 52 can drive the laser head 53 to rotate at least 180°. As a preferred solution, in the present embodiment, the laser head rotation motor 52 can drive the laser head 53 to rotate 360°; the laser head 53 is provided with a laser emitting nozzle perpendicular to its center line of rotation 531. It should be pointed out that the above-mentioned Z-axis is the direction perpendicular to the working platform 1 , that is, the vertical direction; the above-mentioned X-axis is the direction parallel to the working platform 1 , that is, the horizontal direction.

Based on the above structure, the engine connecting rod cracking groove processing equipment provided by the present invention adopts a double-station design in which the loading and unloading station 2 and the processing station 3 are separated, which not only realizes the continuous processing of the connecting rod, but also saves the time for loading and unloading. The production efficiency is improved, and the safety hazard that the operator must hold the connecting rod into the laser operation area for loading and unloading is completely eliminated, ensuring the safety of the operator; secondly, the manipulator 5 of the engine connecting rod cracking groove processing equipment uses a laser head to rotate Motor 52 is used to complete the angle adjustment of laser head 53 to realize the processing of two symmetrical cracking grooves. Compared with the prior art, the processing efficiency is higher and the operability is better; in addition, as shown in Figure 5, laser head 53 The laser emitting nozzle 531 is perpendicular to the center line of rotation of the laser head 53, that is, the laser emitted by the laser emitting nozzle 531 is perpendicular to the inner wall of the big head hole of the connecting rod (0° incident angle), thereby reducing the impact of the material on the laser to the greatest extent. reflectivity, reduce energy waste, improve the machining accuracy and molding quality of the cracking tank; in addition, the engine connecting rod cracking tank processing equipment provided by the present invention has the advantages of simple structure and low maintenance cost.

Specifically, as shown in Figure 2, the Z-axis translation mechanism includes a Z-axis guide frame 54 and a Z-axis translation motor 55, the Z-axis guide frame 54 is perpendicular to the working platform 1, the Z-axis guide frame 54 is provided with a Z-axis guide rail, and the movable arm 51 is perpendicular to the Z-axis guide frame 54 and is slidingly connected with the Z-axis guide rail. The Z-axis translation motor 55 is arranged at one end of the Z-axis guide frame 54 for driving the movable arm 51 to move along the Z-axis guide rail. Similarly, the X-axis translation mechanism includes an X-axis guide frame 56 and an X-axis translation motor 57. The X-axis guide frame 56 is fixed on the work platform 1 and is parallel to the work platform 1. The X-axis guide frame 56 is provided with an X-axis guide rail. The axis guide frame 54 is perpendicular to the X-axis guide frame 56 and is slidingly connected with the X-axis guide rail. The X-axis translation motor 57 is arranged at one end of the X-axis guide frame 56 for driving the Z-axis guide frame 54 to move along the X-axis guide rail.

Specifically, as shown in Figure 4, the station conversion mechanism 4 includes a platform rotating motor 43, a base 44 and a conversion platform 41, the platform rotating motor 43 is fixed on the working platform 1 by the base 44, and the output shaft of the platform rotating motor 43 Arranged vertically upwards, the conversion platform 41 is arranged above the platform rotation motor 43 and is fixedly connected with the output shaft of the platform rotation motor 43 , thus, the conversion platform 41 is driven by the platform rotation motor 43 to realize rotation.

Optionally, as shown in Figure 4, the loading and unloading station 2 and the processing station 3 are symmetrical about the rotation center line of the conversion platform 41, that is to say, the conversion platform 41 rotates 180 °, and the stopper 42 is from the loading and unloading work station. Station 2 is transferred to processing station 3, or from processing station 3 to loading and unloading station 2. In order to further improve the processing efficiency, the conversion platform 41 is provided with two stoppers 42, and the two stoppers 42 can alternate between the loading and unloading station 2 and the processing station 3 as the conversion platform 41 rotates Conversion, that is to say, when one of the stoppers 42 is in the loading and unloading station 2, the other stopper 42 is in the processing station 3; and when the stopper 42 in the loading and unloading station 2 is converted When the rotation of the platform 41 moves to the processing station 3 , the limiting member 42 in the processing station 3 moves to the loading and unloading station 2 along with the rotation of the conversion platform 41 . Based on this, when the operator unloads the finished connecting rod from the stopper 42 in the loading and unloading station 2, and replaces the connecting rod to be processed, the connecting rod in the processing station 3 will not Due to the operator's loading and unloading operation, the processing is stopped. Therefore, the engine connecting rod cracking groove processing equipment provided by the present invention can realize the continuous processing operation of the connecting rod, which improves the processing efficiency. Station 3 is separated into two places, so that the operator's hand does not need to extend into the laser operation area, so the safety of the operator can be guaranteed.

Optionally, as shown in Figures 1 and 4, in order to further improve safety, a movable baffle 45 separating the two limiters 42 is also provided on the conversion platform 41, and the movable baffle 45 is arranged perpendicular to the conversion platform 41 And it can rotate with the conversion platform 41 . In addition, the working platform 1 is also provided with a fixed baffle 11 separating the loading and unloading station 2 and the processing station 3. The fixed baffle 11 is provided with a window for the conversion platform 41 and the movable baffle 45 to rotate, and, for Beautiful, the center line of rotation of the movable baffle 45 is in the plane where the fixed baffle 11 is located, the width of the movable baffle 45 matches the width of the window, and when the limiting member 42 is in the loading and unloading station 2 or the processing station 3 During, movable baffle 45 just closes window.

Optionally, as shown in FIGS. 6 to 7 , the limiter 42 includes a bottom plate 421 , a small-hole ferrule 422 and a large-hole ferrule 423 , the bottom plate 421 is fixedly connected to the conversion platform 41 , and the small-hole ferrule 422 and the large hole The ferrule 423 matches the size of the small end hole and the large end hole of the connecting rod respectively, and the two are arranged on the bottom plate 421 and are perpendicular to the bottom plate 421 . Based on this structure, when loading materials, the operator only needs to place the connecting rod to be processed on the limiter 42 in such a way that its small end hole and large end hole are respectively aligned with the small hole ferrule 422 and the large hole ferrule 423 The fixing of the connecting rod can be realized, and the operation is simple and convenient. It should be noted that since the connecting rods have various specifications, the shapes of the stoppers 42 corresponding to the connecting rods of different specifications are slightly different. For example, for a connecting rod with a larger size, the corresponding stoppers 42 6, the bottom plate 421 is L-shaped including a first plate portion 4211 and a second plate portion 4212, and the small-hole ferrule 422 and the large-hole ferrule 423 are respectively arranged on the first plate portion 4211 and the second plate portion 4212; For a connecting rod with a smaller size, the corresponding limiting member 42 is shown in FIG. 7 , and the bottom plate 421 is rectangular.

Optionally, as shown in Figures 1 and 8, the engine connecting rod cracking groove processing equipment provided by the present invention also includes a tightening mechanism 6, which is arranged beside the processing station 3, which includes a cylinder 61 and a support Seat 62, cylinder 61 is arranged parallel to work platform 1 and is fixed on work platform 1 by support seat 62, and, the installation height of cylinder 61 can be adjusted up and down along support seat 62; The top of the piston rod of cylinder 61 is provided with push block 63 , the push block 63 can tighten the connecting rod located in the processing station 3 against the position-limiting member 42 as the piston rod extends. In order to ensure that the push block 63 fits closely with the connecting rod and adapt to connecting rods of different sizes, the contact surface of the push block 63 and the connecting rod is an arc surface. Based on this structure, when the connecting rod to be processed reaches the processing station 3 along with the conversion platform 41, the piston rod of the cylinder 61 is extended immediately, and the push block 63 pushes the connecting rod against the stopper 42 to prevent the connecting rod from When processing the cracking groove, it is loose and affects the processing quality; after the cracking groove of the connecting rod is processed, the piston rod of the cylinder 61 is shortened immediately, and the push block 63 leaves the processed connecting rod and returns to its original position.

Optionally, as shown in FIG. 1 and FIG. 9 , the engine connecting rod cracking groove processing equipment provided by the present invention further includes a dust suction mechanism 7, and the dust suction mechanism 7 is arranged below the conversion platform 41 and is located in the processing station 3, The dust suction mechanism 7 includes a dust suction pipe 71 and a support 72, the dust suction pipe 71 is fixed on the working platform 1 by the support 72, the dust suction pipe 71 is provided with a dust suction port 711 and an external interface 712, wherein the dust suction port 711 faces upwards It is arranged to facilitate fast suction of debris generated during the processing of the cracking tank, and the external interface 712 is used to connect to an external exhaust pipeline. Based on this structure, the debris generated in the process of cutting the cracking tank is quickly sucked in by the suction port 711 and discharged through the suction pipe 71, which not only reduces dust, improves the working environment, but also reduces the impact of debris on the laser , to ensure the processing quality of the cracking tank.

The embodiment of the present invention also provides a processing method based on the above-mentioned engine connecting rod cracking groove processing equipment, which specifically includes the following steps:

S1, placing the connecting rod to be processed on the limit piece 42 in the loading and unloading station 2 on the conversion platform 41;

S2, drive the conversion platform 41 to rotate 180° through the platform rotation motor 43, and transfer the connecting rod to be processed from the loading and unloading station 2 to the processing station 3;

S3.1, start the cylinder 61, and the piston rod of the cylinder 61 is extended immediately until the push block 63 pushes the connecting rod to be processed against the limiter 42;

S3.2, drive the movable arm 51 to translate through the X-axis translation mechanism, and translate the laser head 53 from the initial position of the X-axis to the processing position of the first cracking groove on the X-axis;

S4, the movable arm 51 is driven down by the Z-axis translation mechanism, and the laser head 53 is lowered from the initial position of the Z-axis until the laser emitting nozzle 531 is flush with the highest position in the Z-axis direction of the inner wall of the big end hole of the connecting rod;

S5, the laser head 53 is turned on, and the laser emitting nozzle 531 starts to emit laser light. At the same time, the movable arm 51 is driven by the Z-axis translation mechanism to continue to descend at a speed matching the laser frequency until the laser emitting nozzle 531 is in contact with the inner wall of the big head hole of the connecting rod. When the lowest position in the Z-axis direction is at the same level, turn off the laser head 53, and the laser emitting nozzle 531 stops emitting laser light. At this point, the processing of the first cracking groove on the inner wall of the big end hole of the connecting rod is completed;

S6, driving the movable arm 51 up through the Z-axis translation mechanism, and raising the laser head 53 to the initial position of the Z-axis;

S7, drive the laser head 53 to rotate 180° by the laser head rotating motor 52;

S8, drive the movable arm 51 to translate through the X-axis translation mechanism, and translate the laser head 53 from the processing position of the first cracking groove on the X-axis to the processing position of the second cracking groove on the X-axis;

S9, driving the movable arm 51 down through the Z-axis translation mechanism, and lowering the laser head 53 from the Z-axis initial position until the laser emitting nozzle 531 is flush with the highest position in the Z-axis direction of the inner wall of the big end hole of the connecting rod;

S10, turn on the laser head 53, and the laser emitting nozzle 531 starts to emit laser light. At the same time, the movable arm 51 is driven by the Z-axis translation mechanism to continue to descend at a speed that matches the laser frequency until the laser emitting nozzle 531 is in contact with the inner wall of the big head hole of the connecting rod. When the lowest position in the Z-axis direction is at the same level, turn off the laser head 53, and the laser emitting nozzle 531 stops emitting laser light. At this point, the second cracking groove on the inner wall of the big end hole of the connecting rod is processed;

S11.1, drive the movable arm 51 to rise through the Z-axis translation mechanism, and raise the laser head 53 to the initial position of the Z-axis;

S11.2, start the cylinder 61, the piston rod of the cylinder 61 is shortened immediately, and the push block 63 leaves the processed connecting rod and returns to its original position;

S12, drive the movable arm 51 to translate through the X-axis translation mechanism, and translate the laser head 53 from the processing position of the second cracking groove on the X-axis to the initial position of the X-axis;

S13.1, drive the laser head to rotate 180° through the laser head rotation motor, so as to wait for the first cracking groove of the next connecting rod to be processed;

S13.2, drive the conversion platform 41 to rotate 180° through the platform rotation motor 43, transfer the processed connecting rod from the processing station 3 to the loading and unloading station 2, and at the same time, transfer the next connecting rod to be processed from the The loading and unloading station 2 is transferred to the processing station 3;

S14, remove the processed connecting rod from the loading and unloading station 2, and then put in a new connecting rod to be processed, so far, the next cycle starts.

It should be emphasized that the above S3.1 and S3.2 can be performed sequentially or simultaneously; similarly, the above S11.1 and S11.2 and S13.1 and S13.2 can also be performed sequentially or simultaneously.

In summary, the present invention provides an engine connecting rod cracking groove processing equipment. Compared with the prior art, the processing equipment has lower energy consumption, higher processing precision, better safety performance, higher processing efficiency, and a more compact structure. Simpler and better operability.

In addition, the present invention also provides a processing method based on the above engine connecting rod cracking groove processing equipment, which has the advantages of high precision and good safety.

It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish information of the same type from each other. For example, "first" information may also be referred to as "second" information without departing from the scope of the present invention, and similarly, "second" information may also be referred to as "first" information.

The above description is a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and deformations can also be made, and these improvements and deformations are also considered Be the protection scope of the present invention.

Claims (10)

1. a kind of engine link slot process equipment characterized by comprising

Workbench, the workbench are equipped with loading and unloading station and processing stations；

Station switching mechanism, the station switching mechanism are equipped with rotatable conversion platform, and the conversion platform is equipped with and is used for The locating part of fixed connecting rod, the locating part can be rotated in the loading and unloading station and the processing with the conversion platform It is converted back and forth between station；

Manipulator, the manipulator include Z axis translation mechanism, X-axis translation mechanism and lever arm, and the Z axis translation mechanism can The lever arm is driven to move along Z axis, the X-axis translation mechanism can drive the lever arm to move along X-axis, on the lever arm Equipped with laser head rotating electric machine, the output shaft of the laser head rotating electric machine downwards and is equipped with laser head, and the laser Head rotating electric machine can drive the laser head to rotate at least 180 °, and the laser head is equipped with the laser hair of its vertical rotation centerline Nozzle.

2. engine link slot process equipment according to claim 1, which is characterized in that the station switching mechanism Including platform rotating electric machine, pedestal and the conversion platform, the platform rotating electric machine is fixed on described by the pedestal On workbench, and the output shaft of the platform rotating electric machine is vertically upward, and the conversion platform is set to the platform electric rotating The top of machine is simultaneously fixedly connected with the output shaft of the platform rotating electric machine.

3. engine link slot process equipment according to claim 1, which is characterized in that the loading and unloading station and The processing stations are symmetrical about the rotation centerline of the conversion platform, set on the conversion platform there are two the limit Part, and two locating parts being rotated between the loading and unloading station and the processing stations with the conversion platform Alternately convert.

4. engine link slot process equipment according to claim 3, which is characterized in that on the conversion platform also Equipped with the flapper for separating two locating parts.

5. engine link slot process equipment according to claim 1, which is characterized in that the Z axis translation mechanism Including Z axis leading truck and Z axis translation motor, the Z axis leading truck is equipped with Z perpendicular to the workbench, the Z axis leading truck Axis rail, the lever arm are slidably connected perpendicular to the Z axis leading truck and with the Z axis guide rail, and the Z axis translation motor is set In one end of the Z axis leading truck, for driving the lever arm to move along the Z axis guide rail.

6. engine link slot process equipment according to claim 5, which is characterized in that the X-axis translation mechanism Including X-axis leading truck and X-axis translation motor, the X-axis leading truck is fixed on the workbench and is parallel to the work Platform, the X-axis leading truck be equipped with X-axis guide rail, the Z axis leading truck perpendicular to the X-axis leading truck and with the X-axis guide rail It is slidably connected, the X-axis translation motor is set to one end of the X-axis leading truck, for driving the Z axis leading truck along the X Axis rail movement.

7. engine link slot process equipment according to claim 1, which is characterized in that the locating part includes bottom Plate, aperture lock pin and macropore lock pin, the bottom plate are fixedly connected with the conversion platform, and the aperture lock pin and the macropore are inserted Core is set on the bottom plate and perpendicular to the bottom plate.

8. engine link slot process equipment according to claim 7, which is characterized in that it further include jacking mechanism, The jacking mechanism includes cylinder and support base, and the cylinder is parallel to that the workbench is arranged and to pass through the support base solid Due on the workbench, and the mounting height of the cylinder can be along the support base up and down adjustment, the piston of the cylinder The top of bar is equipped with pushing block, and the pushing block can will be located at the connecting rod top in the processing stations with the elongation of the piston rod Tightly on the locating part where it.

9. engine link slot process equipment according to claim 1, which is characterized in that it further include dust collection mechanism, The dust collection mechanism is set to the lower section of the conversion platform and is located in the processing stations, and the dust collection mechanism includes sweep-up pipe And bracket, the sweep-up pipe are fixed on the workbench by the bracket, the sweep-up pipe is equipped with suction inlet and external Mouthful.

10. a kind of processing method based on the described in any item engine link slot process equipments of claim 1-9, special Sign is, includes the following steps:

Connecting rod to be processed is placed on the locating part being in loading and unloading station on conversion platform；

Conversion platform is rotated, connecting rod to be processed is transferred into processing stations from loading and unloading station；

Lever arm translation is driven by X-axis translation mechanism, laser head is moved to first splitter of X-axis from X-axis initial position Working position；

Lever arm decline is driven by Z axis translation mechanism, laser head is dropped into its Laser emission mouth and company from Z axis initial position The highest order of the Z-direction of bar big end hole inner wall flushes；

Open laser head, Laser emission mouth start emit laser, at the same time, by Z axis translation mechanism drive lever arm with The speed that laser frequency matches continues to decline, until Laser emission mouth and the lowest order of crank pin end pore inner wall Z-direction are neat Usually, laser head is closed, Laser emission mouth stops transmitting laser, and so far, first splitter of crank pin end pore inner wall is processed It completes；

It drives lever arm to rise by Z axis translation mechanism, laser head is risen into Z axis initial position；

Laser head is driven to rotate 180 ° by laser head rotating electric machine；

Lever arm translation is driven by X-axis translation mechanism, laser head is moved to X-axis from first splitter Working position of X-axis Article 2 splitter Working position；

Lever arm decline is driven by Z axis translation mechanism, laser head is dropped into its Laser emission mouth and company from Z axis initial position The highest order of the Z-direction of bar big end hole inner wall flushes；

Open laser head, Laser emission mouth start emit laser, at the same time, by Z axis translation mechanism drive lever arm with The speed that laser frequency matches continues to decline, until Laser emission mouth and the lowest order of crank pin end pore inner wall Z-direction are neat Usually, laser head is closed, Laser emission mouth stops transmitting laser, and so far, the Article 2 splitter of crank pin end pore inner wall is processed It completes；

It drives lever arm to rise by Z axis translation mechanism, laser head is risen into Z axis initial position；

Lever arm translation is driven by X-axis translation mechanism, laser head is moved to X-axis from X-axis Article 2 splitter Working position Initial position；

By laser head rotating electric machine drive laser head rotate 180 °, with etc. next connecting rod to be processed first splitter；

Conversion platform is rotated, the connecting rod of machined completion is transferred into loading and unloading station from processing stations, it at the same time, will be next A connecting rod to be processed transfers to processing stations from loading and unloading station；

The connecting rod that machined completion is removed from loading and unloading station is then placed in a new connecting rod to be processed, so far, next Circulation starts.