Connecting rod correcting mechanism for engine connecting rod feeding production line

Abstract

The invention relates to a connecting rod correcting mechanism for an engine connecting rod feeding production line, which comprises two connecting rod correcting mechanisms which are symmetrically arranged on two sides of a conveying line and are used for correcting a connecting rod on the conveying line from an irregular angle to an angle parallel to the direction of the conveying line, each connecting rod correcting mechanism comprises a correcting support installed on a frame body on the two sides of the conveying line, a correcting air cylinder installed on the correcting support and perpendicular to the conveying direction of the conveying line, a supporting plate fixedly connected to a piston rod of the correcting air cylinder, a connecting rod head correcting assembly fixedly connected to the supporting plate and a connecting rod tail correcting assembly fixedly connected to the supporting plate. The connecting rod head correcting assembly and the connecting rod tail correcting assembly are used for correcting the head position and the tail position of one side of a connecting rod in the horizontal direction correspondingly. The connecting rod correcting mechanism has the advantages that the connecting rod correcting mechanisms are installed on the two sides of the conveying line, the angles and the positions of connecting rods on the conveying line are unified, and follow-up detection of the connecting rods is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile connecting rod forging processing, and particularly relates to a connecting rod correction mechanism for an engine connecting rod feeding production line. BACKGROUND

[0002] In the rapid development of modern manufacturing industry, engine connecting rod forging manufacturing plays an important role, which involves the production of key equipment such as engines. However, with the continuous progress of technology, manufacturing industry also faces higher and higher production efficiency and product quality requirements. Under this background, automated production becomes an urgent demand to reduce costs, improve efficiency, reduce human intervention, and at the same time ensure the production of high-quality products.

[0003] A key link in connecting rod forging manufacturing is fixed-point detection to ensure product quality and performance. However, the traditional fixed-point detection needs to transport the connecting rod to the specified position in advance, but due to the fact that the position of the connecting rod cannot be guaranteed uniform during the feeding and conveying process, the position of each connecting rod is deviated, which often causes the problem that the subsequent automatic fixed-point detection is not accurate. SUMMARY

[0004] In view of the above problems, the purpose of the present application is to provide a connecting rod correction mechanism for an engine connecting rod feeding production line, which is used to realize the uniform correction of the position of the connecting rod during the conveying process of the connecting rod, so as to overcome the shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The application discloses an engine connecting rod correction mechanism for a connecting rod feeding production line, which comprises two connecting rod correction mechanisms symmetrically arranged on both sides of a conveying line and used for correcting the connecting rods on the conveying line from irregular angles to angles parallel to the conveying line direction, wherein each of the two connecting rod correction mechanisms comprises a correction support mounted on a frame body on both sides of the conveying line, a correction cylinder mounted on the correction support and vertical to the conveying line conveying direction, a support plate fixedly connected to a piston rod of the correction cylinder, a connecting rod head correction assembly and a connecting rod tail correction assembly fixedly connected to the support plate, the connecting rod head correction assembly and the connecting rod tail correction assembly are respectively used for correcting the head position and the tail position of one side of the connecting rod in the horizontal direction, and the connecting rod head correction assembly and the connecting rod tail correction assembly each comprise a wear-resistant top block, a trapezoidal nut, a countersunk bolt, an adjusting screw, a hand screw handle, a support guide rod and a rectangular adjusting block, a strip-shaped gap is formed in the support plate, the rectangular adjusting block is fixedly connected in the strip-shaped gap of the support plate through a jacking bolt and can be adjusted in position in the strip-shaped gap through the jacking bolt, screw holes and mounting holes for the adjusting screw and the support guide rod to pass through are formed in the rectangular adjusting block in the horizontal direction, the adjusting screw and the support guide rod pass through the screw holes and the mounting holes of the rectangular adjusting block and are arranged in parallel to the piston rod of the correction cylinder, the adjusting screw is screw-connected in the screw hole of the rectangular adjusting block and can be adjusted in position in the screw hole, the support guide rod is fixedly connected in the mounting hole of the rectangular adjusting block, the trapezoidal nut is screw-connected on one end of the adjusting screw and located on the side close to the conveying line, the hand screw handle is fixedly connected on the other end of the adjusting screw, and the wear-resistant top block is fixedly connected on the trapezoidal nut through a group of the countersunk bolts.

[0007] As a preferred embodiment of the application, the material of the wear-resistant top block is plastic.

[0008] As a preferred embodiment of the application, the big end of the trapezoidal nut is provided with two screw holes and is fixedly connected with the wear-resistant top block through two countersunk bolts, and the small end of the trapezoidal nut is provided with one screw hole and is screw-connected with the adjusting screw.

[0009] As a preferred embodiment of the application, the side wall of the support plate is provided with a strip-shaped gap screw connection hole, and the rectangular adjusting block is fixed with the support plate through a jacking bolt screw-connected in the screw connection hole.

[0010] As a preferred embodiment of the application, the side wall of the rectangular adjusting block is provided with a jacking screw hole communicated with the screw hole, and the adjusting screw is fixed in the screw hole through a jacking screw mounted in the jacking screw hole.

[0011] As a preferred embodiment of the application, the guiding plate is further arranged, the guiding plate is fixedly connected to the support guide rod and located on the side close to the conveying line, and the guiding plate is provided with a guiding hole or a guiding groove for the adjusting screw to pass through.

[0012] Another object of the present application is to provide a method for correcting a connecting rod on an engine connecting rod feeding production line, comprising the following steps:

[0013] Step S1: A pre-correction section is arranged on the connecting rod conveying line, and a pre-correction assembly is added at the position of the pre-correction section to guide the connecting rod on the conveying line to the center position of the connecting rod conveying line, wherein the pre-correction assembly is composed of two blocks symmetrically mounted on the frame bodies on both sides of the connecting rod conveying line, and the two blocks guide the passing connecting rod to the center line position of the connecting rod conveying line;

[0014] Step S2: A correction section is arranged on the connecting rod conveying line, and two connecting rod correction mechanisms and a sensor are added at the position of the correction section, wherein the sensor is used to detect whether the head position of the connecting rod on the conveying line reaches a preset position, and the two connecting rod correction mechanisms are used to correct the connecting rod on the conveying line from an irregular angle to an angle parallel to the direction of the conveying line;

[0015] Step S21: When the sensor detects that the head position of the connecting rod is conveyed to the set position, the correction cylinder located on the left side of the conveying line is started first, the piston rod of the correction cylinder is used to push the supporting plate, the supporting plate drives the wear-resistant top block in the connecting rod head correction assembly located on the left side of the conveying line to push the head position of the correction connecting rod on the left side, and at the same time, the supporting plate drives the wear-resistant top block in the connecting rod tail correction assembly located on the left side of the conveying line to push the tail position of the correction connecting rod on the left side;

[0016] Step S22: After the piston rod of the correction cylinder located on the left side of the conveying line is pushed to a set stroke (at this time, the angle of the connecting rod has approached the pre-set angle), the correction cylinder located on the right side of the conveying line is started, the piston rod of the correction cylinder is used to push the supporting plate, the supporting plate drives the wear-resistant top block in the connecting rod head correction assembly located on the right side of the conveying line to push the head position of the correction connecting rod on the right side, and at the same time, the supporting plate drives the wear-resistant top block in the connecting rod tail correction assembly located on the right side of the conveying line to push the tail position of the correction connecting rod on the right side, at this time, the two sides of the head and tail of the connecting rod are in contact with the wear-resistant top blocks of the two connecting rod correction mechanisms, and the correction positioning of the connecting rod is completed;

[0017] Step S23: After the piston rod of the correction cylinder located on the right side of the conveying line is pushed to a set stroke (at this time, the angle correction of the connecting rod is completed), the piston rods of the correction cylinders located on both sides of the conveying line are controlled to return to the initial position;

[0018] Step S3: Steps S21 to S23 are repeated to complete the continuous correction positioning of the connecting rod on the conveying line.

[0019] The present application has the following advantages and positive effects:

[0020] 1、The present application unifies the angle and position of the connecting rod on the conveying line by installing the connecting rod correction mechanism on both sides of the conveying line, which is convenient for subsequent detection of the connecting rod.

[0021] 2、The connecting rod correction mechanism of the present application can correct the position of different connecting rods by adjusting the position of the adjusting screw and the support plate, and the position of the rectangular adjusting block and the support plate.

[0022] 3、The connecting rod correction mechanism of the present application guides the reciprocating extension and contraction of the adjusting screw by increasing the support guide rod and the guide plate, ensuring the stability of the extension and contraction of the wear-resistant top block. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the overall structure front view of the connecting rod correction mechanism in the present application.

[0024] Figure 2 is the overall structure top view of the connecting rod correction mechanism in the present application.

[0025] Figure 3 is the overall structure side view of the connecting rod correction mechanism in the present application.

[0026] Figure 4 is the support plate schematic diagram in the present application.

[0027] Reference signs: connecting rod correction mechanism 1, correction support 2, support plate 3, wear-resistant top block 4, trapezoidal nut 5, counterbore bolt 6, adjusting screw 7, hand screw handle 8, support guide rod 9, guide plate 10, rectangular adjusting block 11, strip-shaped gap 12. DETAILED DESCRIPTION

[0028] In the following description, for the purpose of providing a comprehensive understanding of one or more embodiments, numerous specific details are set forth. It is apparent, however, to one skilled in the art that these embodiments can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate a description of one or more embodiments.

[0029] Embodiment 1

[0030] Reference Figures 1-4The engine connecting rod feeding production line connecting rod correction mechanism provided by the embodiment includes: two connecting rod correction mechanisms 1 arranged symmetrically on both sides of the conveying line, which are used to correct the connecting rod on the conveying line from irregular angles to angles parallel to the conveying line direction. Each of the two connecting rod correction mechanisms 1 includes: a correction bracket 2 mounted on the frame on both sides of the conveying line, a correction cylinder (not shown) mounted on the correction bracket 2 and perpendicular to the conveying line conveying direction, a support plate 3 fixedly connected to the correction cylinder piston rod, a connecting rod head correction assembly and a connecting rod tail correction assembly fixedly connected to the support plate 3, the connecting rod head correction assembly and the connecting rod tail correction assembly are respectively used to correct the head position and the tail position of one side of the connecting rod in the horizontal direction, and each of the connecting rod head correction assembly and the connecting rod tail correction assembly includes: a wear-resistant top block 4, a trapezoidal nut 5, a countersunk bolt 6, an adjusting screw 7, a hand screw handle 8, a support guide rod 9, a guide plate 10, and a rectangular adjusting block 11. The support plate 3 is a rectangular copper block, a strip-shaped gap 12 is formed in the support plate 3, the strip-shaped gap 12 horizontally penetrates the support plate 3, a bolt connection hole communicating with the strip-shaped gap 12 is formed in the side wall of the support plate 3, the rectangular adjusting block 11 is fixed by a jacking bolt threaded and connected in the bolt connection hole of the support plate 3, and when it is necessary to adjust the positions of the connecting rod head correction assembly and the connecting rod tail correction assembly according to the length of the connecting rod, it is only necessary to adjust the left and right positions of the rectangular adjusting block 11 in the strip-shaped gap 12. Threaded holes and mounting holes for the adjusting screw 7 and the support guide rod 9 to pass through are formed in the rectangular adjusting block 11 in the horizontal direction, the adjusting screw 7 and the support guide rod 9 pass through the threaded holes and the mounting holes of the rectangular adjusting block 11 respectively and are arranged in parallel with the piston rod of the correction cylinder, the adjusting screw 7 is threaded and connected in the threaded hole of the rectangular adjusting block 11 and can be adjusted in position in the threaded hole, so that the connecting rod correction mechanism 1 can cope with connecting rods of different models, a jack hole communicating with the threaded hole is formed in the side wall of the rectangular adjusting block 11, the adjusting screw 7 is fixed in the threaded hole by a jack installed in the jack hole, and the stability of the adjusting screw 7 during forward and backward movement is ensured. When the adjusting screw 7 is adjusted, the position of the adjusting screw 7 can be adjusted only by removing the jack. The support guide rod 9 is fixedly connected in the mounting hole of the rectangular adjusting block 11, the trapezoidal nut 5 is threaded and connected at one end of the adjusting screw 7 and located on the side close to the conveying line, the hand screw handle 8 is fixedly connected at the other end of the adjusting screw 7, the wear-resistant top block 4 is fixedly connected to the trapezoidal nut 5 by two countersunk bolts 6, the guide plate 10 is fixedly connected to the two support guide rods 9 and located on the side close to the conveying line, and a guide hole for the adjusting screw 7 to pass through is formed in the guide plate 10. The adjusting screw 7 is located above the two support guide rods 9. The material of the wear-resistant top block 4 is plastic. Two screw holes are formed in the large end of the trapezoidal nut 5 and the wear-resistant top block 4 is fixed by two countersunk bolts 6, and one screw hole is formed in the small end of the trapezoidal nut 5 and is threaded and connected with the adjusting screw 7.

[0031] Embodiment 2

[0032] The embodiment provides a connecting rod correction method on an engine connecting rod feeding production line, which comprises the following steps:

[0033] Step S1: a pre-correction section is arranged on the connecting rod conveying line, and a pre-correction assembly is arranged at the pre-correction section position to guide the connecting rod on the conveying line to the center position of the connecting rod conveying line, wherein the pre-correction assembly is composed of two blocks symmetrically arranged on the frame bodies on both sides of the connecting rod conveying line, and the two blocks guide the passing connecting rod to the center line position of the connecting rod conveying line;

[0034] Step S2: a correction section is arranged on the connecting rod conveying line, the correction section is located behind the pre-correction section, two connecting rod correction mechanisms 1 and a sensor are arranged at the correction section position, the sensor is used to detect whether the head position of the connecting rod on the conveying line reaches a preset position, and the two connecting rod correction mechanisms 1 are used to correct the connecting rod on the conveying line from an irregular angle to an angle parallel to the conveying line direction;

[0035] Step S21: when the sensor detects that the head position of the connecting rod is conveyed to the set position, the correction cylinder located on the left side of the conveying line is started first, the piston rod of the correction cylinder is used to push the supporting plate 3, the supporting plate 3 drives the wear-resistant top block 4 in the connecting rod head correction assembly located on the left side of the conveying line to push the head position of the correction connecting rod on the left side, and simultaneously, the supporting plate 3 drives the wear-resistant top block 4 in the connecting rod tail correction assembly located on the left side of the conveying line to push the tail position of the correction connecting rod on the left side;

[0036] Step S22: after the piston rod of the correction cylinder located on the left side of the conveying line is pushed to a set stroke (at this time, the angle of the connecting rod has approached the pre-set angle), the correction cylinder located on the right side of the conveying line is started, the piston rod of the correction cylinder is used to push the supporting plate 3, the supporting plate 3 drives the wear-resistant top block 4 in the connecting rod head correction assembly located on the right side of the conveying line to push the head position of the correction connecting rod on the right side, and simultaneously, the supporting plate 3 drives the wear-resistant top block 4 in the connecting rod tail correction assembly located on the right side of the conveying line to push the tail position of the correction connecting rod on the right side, at this time, the two sides of the head and the tail of the connecting rod are in contact with the wear-resistant top blocks 4 of the two connecting rod correction mechanisms 1, and the correction positioning of the connecting rod is completed;

[0037] Step S23: after the piston rod of the correction cylinder located on the right side of the conveying line is pushed to a set stroke (at this time, the angle correction of the connecting rod is completed), the piston rods of the correction cylinders located on the left and right sides of the conveying line are controlled to return to the initial positions;

[0038] Step S3: the steps S21 to S23 are repeated to complete the continuous correction positioning of the connecting rod on the conveying line.

[0039] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A connecting rod alignment mechanism for an engine connecting rod feeding production line, characterized in that, include: Two linkage correction mechanisms are symmetrically arranged on both sides of the conveyor line. These two mechanisms are used to correct the irregular angles of the connecting rods on the conveyor line to an angle parallel to the direction of the conveyor line. Each linkage correction mechanism includes: a correction bracket mounted on a frame on both sides of the conveyor line; a correction cylinder mounted on the correction bracket and perpendicular to the conveying direction of the conveyor line; a support plate fixed to the piston rod of the correction cylinder; and a connecting rod head correction assembly and a connecting rod tail correction assembly fixed to the support plate. The connecting rod head correction assembly and the connecting rod tail correction assembly are used to correct the head and tail positions of one side of the connecting rod in the horizontal direction, respectively. Each connecting rod head correction assembly and connecting rod tail correction assembly includes: a wear-resistant top block, a trapezoidal nut, a countersunk bolt, an adjusting screw, a hand-tightening handle, a support guide rod, and a rectangular adjusting block. A strip-shaped notch is provided on the support plate. The rectangular adjusting block is fixed to the strip-shaped notch of the support plate by a top-holding bolt, and its position within the notch can be adjusted by the bolt. The rectangular adjusting block has threaded holes and mounting holes along the horizontal direction for the adjusting screw and the support guide rod to pass through. The adjusting screw and the support guide rod pass through the threaded holes and mounting holes of the rectangular adjusting block, respectively, and are arranged parallel to the piston rod of the straightening cylinder. The adjusting screw is threaded into the threaded hole of the rectangular adjusting block and its position can be adjusted back and forth within the threaded hole. The support guide rod is fixed into the mounting hole of the rectangular adjusting block. The trapezoidal nut is threaded onto one end of the adjusting screw and is located on the side close to the conveyor line. The hand-tightening handle is fixed to the other end of the adjusting screw. The wear-resistant top block is fixed to the trapezoidal nut by a set of countersunk bolts.

2. The connecting rod alignment mechanism for an engine connecting rod feeding production line according to claim 1, characterized in that, The wear-resistant top block is made of plastic.

3. The connecting rod alignment mechanism for an engine connecting rod feeding production line according to claim 1, characterized in that, The trapezoidal nut has two threaded holes at its large end and is fixed to the wear-resistant top block by two countersunk bolts. The trapezoidal nut has one threaded hole at its small end and is threaded to the adjusting screw.

4. The connecting rod alignment mechanism for an engine connecting rod feeding production line according to claim 1, characterized in that, The support plate has a strip-shaped notch for bolt connection holes on its side wall. The rectangular adjustment block is fixed to the support plate by a top holding bolt threaded into the bolt connection hole.

5. The connecting rod alignment mechanism for an engine connecting rod feeding production line according to claim 1, characterized in that, The rectangular adjusting block has a set screw hole on its side wall that communicates with the threaded hole. The adjusting screw is fixed in the threaded hole by the set screw installed in the set screw hole.

6. The connecting rod alignment mechanism for an engine connecting rod feeding production line according to claim 1, characterized in that, It also includes a guide plate, which is fixed to the support guide rod and located on the side close to the conveyor line. The guide plate has a guide hole or guide groove for the adjustment screw to pass through.

7. The link correction method of the link correction mechanism according to claim 1, characterized in that, Includes the following steps: Step S1: Set a pre-correction section on the connecting rod conveyor line. Add a pre-correction component at the pre-correction section position to guide the connecting rod on the conveyor line to the center position of the connecting rod conveyor line. The pre-correction component consists of two stops symmetrically installed on the frame on both sides of the connecting rod conveyor line. The two stops guide the passing connecting rod to the center line position of the connecting rod conveyor line. Step S2: Set a correction section on the connecting rod conveyor line, and add two connecting rod correction mechanisms and sensors at the correction section position. The sensors are used to detect whether the head position of the connecting rod on the conveyor line is at a preset position, and the two connecting rod correction mechanisms are used to correct the connecting rod on the conveyor line from an irregular angle to an angle parallel to the direction of the conveyor line. Step S21: When the sensor detects that the head position of the connecting rod has been delivered to the set position, the straightening cylinder located on the left side of the conveyor line is activated first. The piston rod of the straightening cylinder pushes the support plate, and the support plate drives the wear-resistant top block in the connecting rod head straightening assembly located on the left side of the conveyor line to push and straighten the head position of the left side of the connecting rod. At the same time, the support plate drives the wear-resistant top block in the connecting rod tail straightening assembly located on the left side of the conveyor line to push and straighten the tail position of the left side of the connecting rod. Step S22: After the piston rod of the straightening cylinder on the left side of the conveyor line is pushed to the set stroke, the straightening cylinder on the right side of the conveyor line is activated. The piston rod of the straightening cylinder pushes the support plate, and the support plate drives the wear-resistant top block in the connecting rod head straightening assembly on the right side of the conveyor line to push the head position of the right side of the straightening connecting rod. At the same time, the support plate drives the wear-resistant top block in the connecting rod tail straightening assembly on the right side of the conveyor line to push the tail position of the right side of the straightening connecting rod. At this time, the two sides of the head and tail of the connecting rod contact the wear-resistant top blocks of the two connecting rod straightening mechanisms to complete the straightening and positioning of the connecting rod. Step S23: After the piston rod of the straightening cylinder located on the right side of the conveyor line is pushed to the set stroke, the straightening cylinders located on the left and right sides of the conveyor line control the piston rod to return to the initial position; Step S3: Repeat steps S21 to S23 to complete the continuous correction and positioning of the connecting rods on the conveyor line.

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