Connecting rod assembly machine

Abstract

The present invention belongs to the technical field of assembly equipment, and relates to a connecting rod assembly integrated machine, including a machine platform and a stepping moving device arranged on the machine platform, one side of the stepping moving device is provided with a pressing pin device, a screwing device, a bushing riveting device and a blanking device in sequence, a first vibration disk is provided at the rear of the pressing pin device, a connecting rod cover supply assembly is provided above the pressing pin device, a second vibration disk is provided at the rear of the screwing device, a screw installation assembly connected to the second vibration disk is provided above the screwing device, and a third vibration disk is provided at the rear of the bushing riveting device. The integrated machine can automatically complete the pressing pin, assembly, bushing pressing and blanking operations of the connecting rod, with high assembly efficiency and stable quality.

Description

Technical Field

[0001] The invention relates to the technical field of assembly equipment, and in particular to a connecting rod assembly all-in-one machine. Background Art

[0002] The connecting rod is one of the main transmission mechanisms of the automobile engine. It connects the piston and the crankshaft, transmits the expanding gas pressure acting on the top of the piston to the crankshaft, and reversibly converts the reciprocating linear motion of the piston into the rotary motion of the crankshaft to output power. Figure 5 As shown, the connecting rod is composed of a connecting rod body 71 and a connecting rod cover 72. The connecting rod body 71 is composed of a small head 711, a rod body and a big head, wherein the big head is a semi-annular structure. During assembly, the big head needs to be assembled with the semi-annular connecting rod cover 72 into a complete ring, first positioned with a limit pin 73 and then fixed with a screw 74. Some connecting rods will also have a press bushing 75 inside the small head 711.

[0003] In order to achieve high-speed and high-quality assembly of connecting rods, it is necessary to develop an integrated equipment. Summary of the invention

[0004] The main purpose of the present invention is to provide a connecting rod assembly all-in-one machine, which can automatically perform the connecting rod pressing, assembling, bushing pressing and material cutting operations, and has a high degree of automation.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a connecting rod assembly all-in-one machine, including a machine platform and a stepping moving device arranged on the machine platform, one side of the stepping moving device is provided with a pin pressing device, a screw tightening device, a bushing riveting device and a feeding device in sequence, a first vibration disk is provided at the rear of the pin pressing device, a connecting rod cover supply assembly is provided above the pin pressing device, a second vibration disk is provided at the rear of the screw tightening device, a screw installation assembly connected to the second vibration disk is provided above the screw tightening device, and a third vibration disk is provided at the rear of the bushing riveting device.

[0006] Specifically, the stepping moving device includes a plurality of platforms which are arranged at equal intervals.

[0007] Specifically, the screw installation assembly includes a fixed plate located above the stepping movable device, the fixed plate is provided with a pair of slide rails perpendicular to the conveying direction of the stepping movable device, the slide rails are provided with a slide seat driven to move by a servo motor, the slide seat is pivotally connected to a pendulum block driven to rotate by a rotating motor along a direction parallel to the conveying direction of the stepping movable device, and the rear end of the pendulum block is provided with a pair of clamps.

[0008] Furthermore, a counterweight is provided at the front end of the pendulum block.

[0009] Specifically, the unloading device includes a horizontal moving module, which drives a lifting cylinder to move along the conveying direction of the stepping moving device. The lifting cylinder drives a clamping jaw assembly, and two rotating pins are coaxially pivoted on both sides of the clamping jaw of the clamping jaw assembly.

[0010] By adopting the above technical solution, the beneficial effects of the technical solution of the present invention are:

[0011] This all-in-one machine can automatically complete the pin pressing, assembly, bushing pressing and material cutting operations of the connecting rod, with high assembly efficiency and stable quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the connecting rod assembly integrated machine of the embodiment;

[0013] Figure 2 It is a top view of the connecting rod assembly integrated machine of the embodiment;

[0014] Figure 3 This is a partial enlarged view of the screw installation assembly;

[0015] Figure 4 It is a partial enlarged view of the unloading device;

[0016] Figure 5 This is an exploded view of the connecting rod.

[0017] The numbers in the figure represent:

[0018] 1-Machine;

[0019] 2-step moving device, 21-support platform;

[0020] 3-pin pressing device, 31-first vibration plate, 32-connecting rod cover supply assembly;

[0021] 4-screw tightening device, 41-second vibration plate, 42-screw installation assembly, 421-fixed plate, 422-slide rail, 423-servo motor, 424-slide seat, 425-rotating motor, 426-swing block, 427-clamping claw, 428-counterweight block;

[0022] 5- bushing riveting device, 51- third vibration plate;

[0023] 6-feeding device, 61-horizontal moving module, 62-lifting cylinder, 63-gripping jaw assembly, 64-rotating pin;

[0024] 71-connecting rod body, 711-small head, 72-connecting rod cover, 73-limit pin, 74-screw, 75-bushing. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to specific embodiments.

[0026] Example:

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, a connecting rod assembly machine of the present invention comprises a machine platform 1 and a stepping moving device 2 arranged on the machine platform 1, a pressing pin device 3, a screwing device 4, a bushing riveting device 5 and a feeding device 6 are arranged in sequence on one side of the stepping moving device 2, a first vibration plate 31 is arranged behind the pressing pin device 3, a connecting rod cover supply assembly 32 is arranged above the pressing pin device 31, a second vibration plate 41 is arranged behind the screwing device 4, a screw installation assembly 42 connected to the second vibration plate 41 is arranged above the screwing device 4, and a third vibration plate 51 is arranged behind the bushing riveting device 5. The stepping moving device 2 will bring the assembly parts to the next station in sequence. When the installation starts, the connecting rod body 71 will first be brought to the operating station of the pin pressing device 3, the first vibration plate 31 will convey the limit pin 73 to the pin pressing device 31, the pin pressing device 31 will insert the limit pin 73 into the connecting rod body 71, and then the connecting rod cover supply assembly 32 will assemble the connecting rod cover 72 to the connecting rod body 71 from the other side of the limit pin 73 to complete the preliminary positioning; the entire connecting rod with the pin pressed will be brought to the operating station of the screw tightening device 4, and the second vibration plate 41 will supply the screws 74 in pairs to the screw installation assembly 42, The screw installation assembly 42 will install the screw 74 into the threaded hole of the connecting rod body 71, and then the screwing device 4 will feed to fix the connecting rod body 71 and the connecting rod cover 72 with screws; after the connecting rod body 71 and the connecting rod cover 72 are assembled, the connecting rod as a whole is brought to the operating station of the bushing riveting device 5, and the third vibration plate 51 will supply the bushing 75 to the bushing riveting device 5, and then the bushing riveting device 5 will rivet the bushing 75 into the small head 711 of the connecting rod body 71; the connecting rod as a whole with the bushing pressed is brought to the unloading device 6 for unloading. Therefore, the all-in-one machine can automatically complete the pin pressing, assembly, bushing pressing, and unloading operations of the connecting rod, with high assembly efficiency and stable quality.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, the stepping moving device 2 includes a plurality of equally spaced support platforms 21. Each support platform 21 can determine the position of the connecting rod body 71, so that each step of operation can accurately find the processing position.

[0029] like Figures 1 to 3 and Figure 5As shown, the screw mounting assembly 42 includes a fixed plate 421 located above the stepping moving device 2, and a pair of slide rails 422 perpendicular to the conveying direction of the stepping moving device 2 are provided on the fixed plate 421, and a slide seat 424 driven to move by a servo motor 423 is provided on the slide rail 422. A pendulum block 426 driven to rotate by a rotating motor 425 is pivotally connected to the slide seat 424 along a direction parallel to the conveying direction of the stepping moving device 2, and a pair of clamping claws 427 are provided at the rear end of the pendulum block 426. Before screwing begins, the pendulum block 624 is in a horizontal state, and the second vibration disk 41 will send out the screws 74 in pairs in a vertical posture, which will then be clamped by the two clamps 427. Then, the rotating motor 425 drives the pendulum block 424 to swing down 90°, and the screws 74 will also become a horizontal posture aligned with the screw holes of the connecting rod cover 72; then the servo motor 423 drives the slide 424 to move forward, so that the clamps 427 will insert the screws 74 into the screw holes; then the clamps 427 are released, and the pendulum block 424 returns to the top, avoiding the screwing device 4; the screwing device 4 tightens the screws 74 to complete the fixation of the connecting rod body 71 and the connecting rod cover 72.

[0030] like Figure 3 As shown, a counterweight 428 is provided at the front end of the pendulum block 426. The counterweight 428 can balance the weight of one end of the clamping jaw 427, so that the swing of the pendulum block 426 can be easily stopped, and the screw 74 can be prevented from falling due to severe shaking.

[0031] like Figure 1 and Figure 4 As shown, the unloading device 6 includes a horizontal moving module 61, which drives the lifting cylinder 62 to move along the conveying direction of the stepping moving device 2. The lifting cylinder 62 drives a clamping claw assembly 63, and two rotating pins 64 are coaxially pivoted on both sides of the clamping claw of the clamping claw assembly 63. The connecting rod is in a horizontal state on the bracket 21. When unloading, the lifting cylinder 62 will drive the clamping claw assembly 63 to descend and clamp the two ends of the connecting rod, and then lift the connecting rod away from the bracket 21. The connecting rod will automatically rotate to a vertical state under the action of gravity, and finally the horizontal moving module 61 will allow the clamping claw assembly 63 to carry the connecting rod to the product storage position.

[0032] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A connecting rod assembly machine, characterized in that: The invention comprises a machine platform and a stepping moving device arranged on the machine platform, wherein a pressing pin device, a screwing device, a bushing riveting device and a feeding device are arranged in sequence on one side of the stepping moving device, a first vibration plate is arranged at the rear of the pressing pin device, a connecting rod cover supply assembly is arranged above the pressing pin device, a second vibration plate is arranged at the rear of the screwing device, a screw installation assembly connected to the second vibration plate is arranged above the screwing device, and a third vibration plate is arranged at the rear of the bushing riveting device; the stepping moving device comprises a plurality of supports arranged at equal intervals; the screw installation assembly comprises a plurality of support platforms arranged at equal intervals; the plurality of support platforms are arranged at the stepping moving device, and the plurality of support platforms are arranged at the stepping moving device. A fixed plate at the top, wherein a pair of slide rails are arranged on the fixed plate and are perpendicular to the conveying direction of the stepping moving device, wherein a slide seat driven by a servo motor is arranged on the slide rail, wherein a swing block driven by a rotary motor is pivotally connected to the slide seat along the conveying direction parallel to the stepping moving device, wherein a pair of clamping claws are arranged at the rear end of the swing block, and a counterweight block is arranged at the front end of the swing block; wherein the unloading device comprises a horizontal moving module, wherein the horizontal moving module drives a lifting cylinder to move along the conveying direction of the stepping moving device, wherein the lifting cylinder drives a clamping claw assembly, wherein two rotating pins are coaxially pivoted on both sides of the clamping claw of the clamping claw assembly; Before screwing begins, the pendulum block is in a horizontal state, and the second vibration plate will send out the screws in pairs in a vertical posture, which will then be clamped by two clamps. Then the rotating motor drives the pendulum block to swing down 90°, and the screw will also become a horizontal posture aligned with the screw hole of the connecting rod cover; then the servo motor drives the slide to move forward, so that the clamp will insert the screw into the screw hole; then the clamp is released, and the pendulum block returns to the top to avoid the screw tightening device; the screw tightening device tightens the screw to complete the fixation of the connecting rod body and the connecting rod cover.

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