Automatic trimming, taking-out and respective placing mechanism for automobile engine connecting rods

Abstract

An automatic trimming, taking-out and respective placing mechanism for automobile engine connecting rods comprises an automatic conveying mechanism, a feeding mechanical arm, a feeding mechanism, a material taking mechanical arm, a material taking and respective placing mechanism, a flash conveying chain and a connecting rod placing table. The feeding manipulator drives the feeding mechanism to feed the connecting rod with the flash to a lower trimming die in the trimming die of the trimming machine and then returns to the initial position; meanwhile, the edge trimmer conducts stamping to divide the connecting rod with the flash into a connecting rod and a flash, the material taking mechanical arm drives the material taking and respective placing mechanism to take out the separated connecting rod and the flash at the same time and place the separated connecting rod and the flash respectively, the flash is put down on the flash conveying chain, and the connecting rod is put down on the connecting rod placing table; according to the mechanism, taking out and respective placing of the connecting rod and the flash are completed through the same mechanism in the same step, the overall structure is simpler, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of engine connecting rods, in particular to an automatic trimming, taking out and placing mechanism for connecting rods of automobile engines. Background Art

[0002] The engine connecting rod is one of the main transmission mechanisms of a car 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 rotational motion of the crankshaft to output power.

[0003] When forging, the engine connecting rod goes through the processes of blanking-bar heating-roll forging-closed die forging-trimming and punching-shaping. After closed die forging, there will be excess blanks around the connecting rod to form flash. In order to separate the connecting rod from the flash, it is necessary to enter the next process-trimming and punching. Traditional trimming and punching is to manually clamp the connecting rod with flash and place it in the lower trimming die of the trimming machine for stamping to separate the connecting rod from the flash. The separated connecting rod and flash are manually clamped together, and the connecting rod is placed in the next process, and the flash is placed in the flash processing box. This processing method increases the workload of the operator on the one hand, and due to the harsh working environment, it has high requirements on the physical fitness of the operator, and the operator needs to be replaced frequently. On the other hand, manual operation has low work efficiency and does not meet the requirements of industrial automation.

[0004] Application No. 2023100182738 discloses "an automatic trimming and transmission mechanism for connecting rods of automobile engines". The transmission mechanism includes a feeding and taking mechanism, a pre-trimming transmission mechanism, a post-trimming transmission mechanism, a connecting rod taking mechanism and a flash taking mechanism. The connecting rod with flash is transmitted to the feeding and taking mechanism by the pre-trimming transmission mechanism. The feeding and taking mechanism can accurately deliver the connecting rod with flash to the cavity of the lower trimming mold. The trimming machine performs stamping to separate the connecting rod with flash into a connecting rod and a flash. The feeding and taking mechanism takes out the stamped connecting rod and flash, and transmits them between the connecting rod taking mechanism and the flash taking mechanism by the post-trimming transmission mechanism. Finally, the connecting rod taking mechanism takes out the connecting rod on the post-trimming transmission mechanism and slides it to the next process along the connecting rod slide. The flash taking mechanism takes out the flash on the post-trimming transmission mechanism and slides it into the flash processing box along the flash slide. The mechanism realizes automated trimming, reduces the workload of operators, and improves work efficiency. However, the following defects still exist: (1) The overall structure is complex, and the transmission mechanism is driven by a cylinder. The cylinder is not durable, the starting and stopping impact is large, the transmission stability is poor, and the moving distance cannot be adjusted. The installation and debugging are inconvenient and the operation is unstable; (2) After the feeding and picking mechanism takes out the stamped connecting rod and flash, it needs to go through the three mechanisms of the post-cutting transmission mechanism, the flash removal mechanism, and the connecting rod removal mechanism to place the separated flash and connecting rod separately. The operation process is cumbersome and the work efficiency needs to be improved. Utility Model Content

[0005] In view of the above-mentioned technical problems and defects, the purpose of the utility model is to provide an automatic trimming, taking out and placing mechanism for connecting rods of automobile engines, which can quickly and accurately deliver the connecting rod with flash to the lower trimming mold of the trimming machine. After the trimming machine separates the connecting rod from the flash, the separated connecting rod and flash in the lower trimming mold are taken out by a self-designed material taking and placing mechanism, and the separated flash and connecting rod are placed in different positions respectively to complete the separation; the taking out and placing of the connecting rod and flash of this mechanism are completed by the same mechanism and in the same step, so its overall structure is simpler, the operation is more convenient, and the processing efficiency of the connecting rod can be improved.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An automatic trimming, taking out and placing mechanism for connecting rods of automobile engines, comprising a trimming machine, an automatic transmission mechanism, a feeding manipulator, a feeding mechanism, a taking manipulator, a taking and placing mechanism, a flash conveying chain and a connecting rod placing table;

[0008] Wherein, the trimming machine is used to punch the connecting rod with flash placed in the trimming die to separate the flash from the connecting rod;

[0009] The automatic transmission mechanism is arranged on one side of the trimming machine;

[0010] The feeding manipulator is close to the automatic transmission mechanism and is arranged in front of the trimming machine. A feeding mechanism is arranged on a fixed plate at the end of the feeding manipulator. The feeding mechanism cooperates with the feeding manipulator to remove the connecting rod with flash from the automatic transmission mechanism and send it to the lower trimming die of the trimming die.

[0011] The material taking manipulator is far away from the automatic transmission mechanism and is arranged in front of the trimming machine. A material taking and placing mechanism is arranged on the fixed plate at the end of the material taking manipulator. The material taking and placing mechanism cooperates with the material taking manipulator to simultaneously take out the separated connecting rod and flash in the trimming die and place them separately, and place the flash on the flash conveying chain and the connecting rod on the connecting rod placing table.

[0012] The flash conveying chain is arranged close to the other side of the trimming machine and is used to convey the flash placed on the flash conveying chain to the flash box;

[0013] The connecting rod placement platform is close to the flash conveying chain and is arranged on the outside of the flash conveying chain, and is used for placing the connecting rod.

[0014] As a preferred embodiment of the utility model, the automatic transmission mechanism and the trimming machine are arranged on the same axis, and the automatic transmission mechanism includes an overall supporting frame, a servo transverse driving mechanism, a transverse frame, a first positioning mold, a light curtain switch bracket, a light curtain switch, a first thermometer bracket, and a first thermometer; wherein the servo transverse driving mechanism, the light curtain switch bracket, and the first thermometer bracket are installed on the overall supporting frame, the servo transverse driving mechanism is driven by a motor to reciprocate the transverse movable block thereon, the transverse frame is fixed on the transverse movable block of the servo transverse driving mechanism, the first positioning mold is fixed on the transverse frame, the light curtain switch is installed on the light curtain bracket, and the first thermometer is installed on the first thermometer bracket.

[0015] As a preferred embodiment of the utility model, the feeding mechanism includes a clamping cylinder, an upper clamping jaw, and a lower clamping jaw; wherein, the upper clamping jaw is fixed on the first clamping cylinder movable block of the clamping cylinder, and the head of the upper clamping jaw is "L"-shaped, and the lower clamping jaw is fixed on the second clamping cylinder movable block of the clamping cylinder, and the head of the lower clamping jaw is "concave"-shaped, and the "L"-shaped head of the upper clamping jaw is directly opposite to the middle of the groove of the "concave"-shaped head of the lower clamping jaw.

[0016] As a preferred embodiment of the utility model, the material taking and placing mechanism includes a fixed plate, a supporting connecting rod mechanism installed on the fixed plate, a flash edge supporting mechanism, and a temperature measuring mechanism installed on the fixed plate; wherein the supporting connecting rod mechanism is used to tighten the inner hole of the connecting rod big end after trimming and then take out the connecting rod, and the supporting connecting rod mechanism includes a supporting connecting rod cylinder fixed on one side of the fixed plate, and the two movable air claws of the supporting connecting rod cylinder are respectively connected to the two supporting block connecting rods, and the ends of the supporting block connecting rod are respectively connected to the two oppositely arranged semicircular supporting blocks;

[0017] The burr supporting mechanism is used to lift up the burr after trimming and remove the burr. The burr supporting mechanism includes a burr supporting cylinder fixed on the other side of the fixing plate. The piston rod of the burr supporting cylinder is connected to a fork support fixing seat. A pair of symmetrical L-shaped fork supports are installed at both ends of the fork support fixing seat.

[0018] The support block connecting rod is provided with a flash baffle, the side of which is close to the flash and is used to block the flash when the fork support is retracted, so that the flash is separated from the connecting rod;

[0019] The temperature measuring mechanism is used to measure the temperature of the connecting rod small end taken out after trimming, and the temperature measuring mechanism comprises a second temperature meter bracket fixed on the side of the fixing plate, and a second temperature meter is fixed on the second temperature meter bracket.

[0020] As a preferred embodiment of the present invention, the connecting rod placement table includes a second positioning mold, a placement table support rod, and a placement table base. The large end hole in the second positioning mold is connected to the cylindrical placement table support rod, and the other end of the placement table support rod is connected to the rectangular placement table base.

[0021] As a further preferred embodiment of the utility model, the overall supporting frame is welded by anchors, legs, cross braces and channel steels; the transverse frame is welded by a mobile frame bottom plate, a mobile frame support rod and a mobile frame top plate; the channel steel notch is welded downward to the four legs, the lower ends of the four legs are respectively connected to the four anchors, and four cross braces are welded to the bottom of the four legs; the mobile frame bottom plate is connected to the transverse movable block, and the mobile frame top plate is connected to the mobile frame bottom plate through four mobile frame support rods.

[0022] As a further preferred embodiment of the present utility model, the feeding mechanism also includes a feeding fixed plate, a first clamping cylinder fixed side plate, and a second clamping cylinder fixed side plate. The upper surface of the feeding fixed plate is connected to the fixed plate at the end of the feeding robot; the first clamping cylinder fixed side plate and the second clamping cylinder fixed side plate are vertically fixed to the front section of the lower surface of the feeding fixed plate; the clamping cylinder is fixed between the first clamping cylinder fixed side plate and the second clamping cylinder fixed side plate.

[0023] As a further preference of the present invention, the connecting rod support cylinder and the flash supporting cylinder are fixed on both sides of the lower surface of the fixed plate and are arranged parallel to the fixed plate; the diameter of the circular support block formed by the combination of the two relatively arranged semicircular support blocks is smaller than the diameter of the inner hole of the connecting rod big end, and is matched with the clearance of the inner hole of the connecting rod big end.

[0024] As a further preference of the utility model, the flash supporting cylinder is a three-rod flash supporting cylinder, and the flash dragging cylinder is connected to the fixed plate through four fixed rods. The length of the fixed rods must meet the requirement that after the two semicircular support blocks tighten the connecting rods, when the flash supporting cylinder is actuated, the fork supports at both ends are exactly located at the bottom of the flash.

[0025] As a further preference of the present utility model, the fork support fixing seat is an L-shaped structure, including a vertical seat and a horizontal seat, the vertical seat is connected to the movable part of the three-rod cylinder supporting the burr edge, and the two ends of the horizontal seat are respectively installed with an L-shaped left fork support and an L-shaped right fork support, and the fixing hole on the horizontal seat and the fork support positioning hole on the vertical seat are both groove-type structures; a groove-type hole is processed on the second thermometer bracket, and the second thermometer is fixed in the groove-type hole on the second thermometer bracket. The second thermometer is a cylindrical thermometer, and the second thermometer and the tightened connecting rod are in the same plane, and the center of the second thermometer is aligned with the center of the small end of the connecting rod.

[0026] Advantages and beneficial effects of the utility model

[0027] 1. The automatic trimming, taking out and placing mechanism of the utility model comprises an automatic transmission mechanism, a feeding manipulator, a feeding mechanism, a picking manipulator, a picking and placing mechanism, a flash transmission chain and a connecting rod placing table. The connecting rod with flash is transmitted to a designated position by the automatic transmission mechanism, the feeding manipulator drives the feeding mechanism to send the connecting rod with flash to the lower trimming die in the trimming die of the trimming machine, and then returns to the initial position; at the same time, the trimming machine performs stamping to separate the connecting rod with flash into a connecting rod and a flash, the picking manipulator drives the picking and placing mechanism to take out the separated connecting rod and flash at the same time and place them separately, put the flash on the flash transmission chain, and put the connecting rod on the connecting rod placing table, thereby realizing the full automation of trimming, taking out and placing the connecting rod with flash. The taking out and placing of the connecting rod and the flash of the mechanism are completed by the same mechanism and in the same step, so its overall structure is simpler, the operation is more convenient, and the processing efficiency of the connecting rod can be improved.

[0028] 2. The automatic transmission mechanism, the positioning mold on the connecting rod placement table and the shape of the lower part of the connecting rod with flash in the utility model can be interlocked with the lower part of the connecting rod with flash, so that the automatic transmission process and the connecting rod placement process can be more accurate, ensuring the stability of the transmission process and the connecting rod placement.

[0029] 3. The temperature measuring mechanism in the automatic transmission mechanism of the utility model can prevent cold parts from being placed in the trimming mold and avoid damage to the equipment by measuring the temperature on the positioning mold after the servo transverse driving mechanism reaches the specified position.

[0030] 4. The material taking and placing mechanism in the utility model can take out the cut connecting rod and flash at the same time through the joint action of the connecting rod supporting cylinder and the flash supporting cylinder, and place them in different positions respectively, with few actions and simple structure, meeting the production rhythm and automation requirements.

[0031] 5. The temperature measuring mechanism in the material taking and placing mechanism of the utility model determines whether the trimmed connecting rod is truly taken out from the trimming die by actually measuring the temperature of the small end of the connecting rod, thereby avoiding equipment damage caused by the trimming equipment failure causing the trimmed connecting rod to be put in again without being taken out.

[0032] 6. The feeding mechanism, material picking and placing mechanism in the utility model are driven by 4-axis wrist manipulators respectively, which can simply and accurately realize the positioning, route planning and joint control of the workpiece, and are easy to debug. Moreover, by fixing the two manipulators on a steel plate, the installation is stable and easy to operate.

[0033] 7. In the utility model, the automatic transmission mechanism of the utility model uses a light curtain switch and takes the arm leaving the light curtain range as the starting condition, thereby eliminating the malfunction of the automatic transmission mechanism and ensuring the normal operation of the edge cutting automation.

[0034] 8. In the feeding mechanism of the utility model, the head of the upper clamp is designed to be "L" shaped, and the head of the lower clamp is designed to be "concave" shaped. Through the "sawtooth" bite of the upper clamp and the lower clamp to the middle flash of the flash connecting rod, the flash connecting rod can be driven horizontally and stably to move along the robot route along with the material picking and placing mechanism.

[0035] 9. The feeding mechanism of the utility model is changed from an online cylinder drive to a motor drive. This structure runs more smoothly, the moving distance is adjustable, and it is conducive to the installation and debugging of the automatic trimming and taking out and placing mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work.

[0037] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model;

[0038] Figure 2 This is a schematic diagram of the trimming die mechanism in the embodiment of the utility model;

[0039] Figure 3 This is a schematic diagram of the automatic transmission mechanism in the embodiment of the utility model;

[0040] Figure 4 This is a schematic diagram of a feeding mechanism in an embodiment of the utility model;

[0041] Figure 5 This is a schematic diagram of the material taking and placing mechanism in the embodiment of the utility model;

[0042] Figure 6 It is a schematic diagram of the overall structure of the fork support fixing seat in the embodiment of the utility model;

[0043] Figure 7 This is a schematic diagram of a placement table mechanism in an embodiment of the utility model;

[0044] Figure 8 It is a schematic diagram of a connecting rod with flash in an embodiment of the utility model.

[0045] Reference numerals: trimming machine 1, trimming die 2, lower trimming die 21, upper trimming die 22, stripping plate 23, automatic transmission mechanism 3, foot 301, leg 302, cross brace 303, channel steel 304, servo transverse drive mechanism 305, transverse movable block 306, mobile frame bottom plate 307, mobile frame support rod 308, mobile frame top plate 309, first positioning die 310, light curtain switch bracket 311, light curtain switch 312, first thermometer bracket 313, first thermometer 314, feeding mechanism 4, feeding fixed plate 401, first clamping cylinder fixed side plate 402, second clamping cylinder fixed side plate 403, clamping cylinder 404, first clamping cylinder movable block 405, second clamping cylinder movable block 406 6. Upper clamp 407, lower clamp 408, material picking and placing mechanism 5, fixed plate 501, supporting connecting rod cylinder 502, left supporting block connecting rod 503, right supporting block connecting rod 504, left supporting block 505, right supporting block 506, flash baffle 507, flash supporting cylinder 508, fork support fixing seat 509, left fork support 510, right fork support 511, fixed rod 512, second thermometer bracket 513, second thermometer 514, stand 5091, horizontal seat 5092, feeding robot 6, material picking robot 7, flash conveying chain 8, connecting rod placing table 9, second positioning mold 91, placing table support rod 92, placing table base 93, connecting rod with flash 10, connecting rod 101, flash 102, robot bottom plate 11. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0047] In the description of the present application, it should be noted that the terms "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the application is usually placed when in use. These directions or positions are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0048] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] like Figures 1 to 8 As shown, the present embodiment provides an automatic trimming, taking out and placing mechanism for connecting rods of automobile engines, comprising a trimming machine 1, an automatic transmission mechanism 3, a feeding manipulator 6, a feeding mechanism 4, a taking manipulator 7, a taking and placing mechanism 5, a flash conveying chain 8, and a connecting rod placing table 9;

[0050] Wherein, the trimming machine 1 is used to punch the connecting rod 10 with flash placed in the trimming die 2, so that the flash is separated from the connecting rod;

[0051] The automatic transmission mechanism 3 is arranged on one side of the trimming machine 1 (in this embodiment, it is arranged on the right side of the trimming machine), and the automatic transmission mechanism 3 and the trimming machine 1 are arranged on the same axis;

[0052] The feeding manipulator 6 is close to the automatic transmission mechanism 3 and is arranged in front of the trimming machine 1 (in this embodiment, it is arranged in front of the trimming machine 1 to the right), and a feeding mechanism 4 is arranged on the fixed plate at the end of the feeding manipulator 6. The feeding mechanism 4 cooperates with the feeding manipulator 6 to remove the flash connecting rod 10 from the automatic transmission mechanism 3 and send it to the lower trimming die 21 of the trimming die 2;

[0053] The material taking manipulator 7 is far away from the automatic transmission mechanism 3 and is arranged in front of the trimming machine 1 (in this embodiment, it is arranged in front of the left side of the trimming machine 1). A material taking and placing mechanism 5 is arranged on the fixed plate at the end of the material taking manipulator 7. The material taking and placing mechanism 5 cooperates with the material taking manipulator 7 to simultaneously take out the separated connecting rod 101 and flash 102 in the trimming die 2 and place them separately, and place the flash 102 on the flash conveying chain 8, and place the connecting rod 102 on the connecting rod placing table 9;

[0054] The flash conveying chain 8 is arranged close to the other side of the trimming machine 1 (in this embodiment, it is arranged on the left side of the trimming machine), and is used to convey the flash 102 placed on the flash conveying chain 8 to the flash box;

[0055] The connecting rod placement platform 9 is close to the flash conveying chain 8 and is arranged on the outside of the flash conveying chain 8 (in this embodiment, it is arranged on the left side of the flash conveying chain), and is used to place the connecting rod 101 to prepare for the next process.

[0056] In this embodiment, the feeding manipulator 6 and the picking manipulator 7 are both 4-axis wrist manipulators, which are existing structures and are not described in detail in this application. In addition, in the present utility model, the trimming machine 1 can adopt the existing structure, and the trimming machine 1 includes a lower trimming die 21, an upper trimming die 22, a stripping plate 23 and other components.

[0057] Further, if Figure 1 As shown, in this embodiment, the feeding robot 6 and the picking robot 7 are fixed on the same steel plate 11, and the distance between the feeding robot 6 and the picking robot 7 is approximately equal to the width of the trimmer 1, so that their positions are fixed. When debugging and installing the trimmer 1, it is only necessary to adjust the center of the steel plate 11 and the center of the trimmer 1, and the installation and debugging are simple.

[0058] Further, if Figure 3 As shown, in this embodiment, the automatic transmission mechanism 3 includes a foot 301, a leg 302, a cross brace 303, a channel steel 304, a servo transverse driving mechanism 305, a transverse motion block 306, a mobile frame bottom plate 307, a mobile frame support rod 308, a mobile frame top plate 309, a first positioning mold 310, a light curtain switch bracket 311, a light curtain switch 312, a first thermometer bracket 313, and a first thermometer 314; wherein the foot 301, the leg 302, the cross brace 303, and the channel steel 304 are welded together to form an overall support frame;

[0059] Specifically, the notch of the channel steel 304 is welded downward to the four legs 302, the lower ends of the four legs 302 are respectively connected to the four footings 301, and four cross braces 303 are welded to the bottom of the four legs 302;

[0060] The servo transverse driving mechanism 305 is fixed in the notch of the channel steel 304, and the servo transverse driving mechanism 305 is driven by a motor to reciprocate the transverse movable block 306 thereon;

[0061] The movable frame bottom plate 307, movable frame support rod 308, and movable frame top plate 309 are welded together to form a transverse moving frame;

[0062] Specifically, the mobile frame bottom plate 307 is connected to the transverse movable block 306, and the mobile frame top plate 309 is connected to the mobile frame bottom plate 307 through four mobile frame support rods 308;

[0063] The first positioning mold 310 is fixed on the top plate 309 of the movable frame, and the first positioning mold 310 is used to place the flash connecting rod 10; the light curtain switch bracket 311 is fixed on the support leg 302 and is arranged close to the closed die forging equipment (in this embodiment, it is arranged on the right support leg); the light curtain switch 312 is installed on the light curtain bracket 311; the first thermometer bracket 313 is installed on the outer cross brace 303; the first thermometer 314 is installed on the first thermometer bracket 313, and the actual measuring point of the first thermometer 314 faces the position of the first positioning mold 310 when the transverse movable block 306 reaches the specified position, and is used to measure the temperature of the flash connecting rod on the first positioning mold 310.

[0064] Further, if Figure 4 As shown, in this embodiment, the feeding mechanism 4 includes a feeding fixed plate 401, a first clamping cylinder fixed side plate 402, a second clamping cylinder fixed side plate 403, a clamping cylinder 404, a first clamping cylinder movable block 405, a second clamping cylinder movable block 406, an upper clamping jaw 407, and a lower clamping jaw 408; wherein the upper surface of the feeding fixed plate 401 is connected to the fixed plate at the end of the feeding manipulator 6;

[0065] The first clamping cylinder fixed side plate 402 and the second clamping cylinder fixed side plate 403 are vertically fixed to the front section of the lower surface of the feeding fixed plate 401; the clamping cylinder 404 is fixed between the first clamping cylinder fixed side plate 402 and the second clamping cylinder fixed side plate 403; the upper clamping jaw 407 is fixed on the first clamping cylinder movable block 405 of the clamping cylinder, and the head of the upper clamping jaw 407 is "L"-shaped; the lower clamping jaw 408 is fixed on the second clamping cylinder movable block 406 of the clamping cylinder, and the head of the lower clamping jaw 408 is "concave"-shaped, and the "L"-shaped head of the upper clamping jaw 407 is directly opposite to the middle of the groove of the "concave"-shaped head of the lower clamping jaw 408.

[0066] Further, if Figure 5 , Figure 6 As shown, in this embodiment, the material taking and placing mechanism 5 includes a fixed plate 501, a supporting rod mechanism, a flash supporting mechanism, and a temperature measuring mechanism installed on the fixed plate 1; wherein, the upper surface of the fixed plate 501 is connected to the fixed plate at the end of the material taking manipulator 7; the supporting rod mechanism is used to tighten the inner hole of the big end of the connecting rod after trimming and then take out the connecting rod, and the supporting rod mechanism includes a supporting rod cylinder 502 fixed to one side of the fixed plate 501, and the two movable air claws (also called active air claws) of the supporting rod cylinder 502 are respectively connected to two supporting block connecting rods, and the ends of the two supporting block connecting rods are respectively connected to two oppositely arranged semicircular supporting blocks;

[0067] Specifically, the supporting connecting rod cylinder 502 is fixed to the left front side of the lower surface of the fixed plate 501, and the two movable air claws of the supporting connecting rod cylinder 502 are respectively connected to the left supporting block connecting rod 503 and the right supporting block connecting rod 504, and the ends of the left and right supporting block connecting rods are respectively connected to the semicircular left supporting block 505 and the semicircular right supporting block 506;

[0068] The burr supporting mechanism is used to lift up the burr after trimming and remove it. The burr supporting mechanism includes a burr supporting cylinder 508 fixed to the other side of the fixing plate 501. The piston rod of the burr supporting cylinder 508 is connected to a fork support fixing seat 509. A pair of symmetrical L-shaped fork supports are installed at both ends of the fork support fixing seat 509, namely a left fork support 510 and a right fork support 511.

[0069] Specifically, the flying edge supporting cylinder 508 is a flying edge supporting three-rod cylinder. The flying edge dragging cylinder 508 is arranged on the right side of the fixing plate 501 through four fixing rods 512, and is located at the lower right side of the supporting connecting rod cylinder 502. The length of the fixing rod 512 needs to meet the requirement that after the two semicircular supporting blocks (left supporting block 505 and right supporting block 506) tighten the connecting rod, when the flying edge supporting cylinder 508 is in motion, the fork supports at both ends (left fork support 510 and right fork support 511) are exactly located at the bottom of the flying edge.

[0070] The fork support fixing seat 509 is an L-shaped structure, including a vertical seat 5091 and a horizontal seat 5092. The vertical seat 5091 is connected to the movable part of the three-rod cylinder for supporting the burr. The two ends of the horizontal seat 5092 are respectively installed with an L-shaped left fork support 510 and an L-shaped right fork support 511. The fixing hole (unmarked) on the horizontal seat 5092 and the fork support positioning hole (unmarked) on the vertical seat 5091 are both groove-type structures, which is convenient for adjusting the position of the fork support.

[0071] The temperature measuring mechanism is used to measure the temperature of the connecting rod small end after trimming. The temperature measuring mechanism includes a second temperature meter bracket 513 fixed to the side of the fixing plate 501 , and a second temperature meter 514 is fixed on the second temperature meter bracket 513 .

[0072] Specifically, the second thermometer bracket 513 is fixed to the right side of the fixed plate 501, and a slotted hole (not marked) is processed on the second thermometer bracket 513. The second thermometer 514 is fixed in the slotted hole on the second thermometer bracket 513. The second thermometer 514 is a cylindrical thermometer. The second thermometer 514 and the tightened connecting rod are in the same plane. The center of the second thermometer 514 is aligned with the center of the small end of the connecting rod. After taking out the separated connecting rod and flash, the actual measuring point of the second thermometer 514 is opposite to the center position of the small end of the connecting rod.

[0073] In this embodiment, the diameter of the circular support block formed by combining two relatively arranged semicircular support blocks (left support block 505 and right support block 506) is smaller than the diameter of the inner hole of the connecting rod big end, and matches the clearance of the inner hole of the connecting rod big end.

[0074] Furthermore, in this embodiment, the supporting connecting rod cylinder 502 and the burr edge supporting cylinder 508 are both fixed on both sides of the lower surface of the fixing plate 501 and are arranged parallel to the fixing plate 501 .

[0075] Furthermore, in the present embodiment, the right support block connecting rod 504 is provided with a burr baffle 507 on the side close to the right fork support 511, and the side of the burr baffle 507 is close to the burr (in the present embodiment, the burr baffle 507 is fixed at a position about 15 cm away from the front end of the right support block connecting rod 504), which is used to block the burr when the fork support is retracted, so that the burr is separated from the connecting rod, and the burr is prevented from retracting together with the fork support and failing to fall normally.

[0076] Further, if Figure 7 As shown, in this embodiment, the connecting rod placement platform 9 includes a second positioning mold 91, a placement platform support rod 92, and a placement platform base 93; wherein the large end hole in the second positioning mold 91 is connected to the cylindrical placement platform support rod 92, and the other end of the placement platform support rod 92 is connected to the rectangular placement platform base 93.

[0077] In this embodiment, the second positioning mold 91 in the connecting rod placement table 9 is at the same height as the lower trimming mold 21 of the trimming machine 1. The connecting rod models in the first positioning mold 310, the second positioning mold 91 and the lower trimming mold 21 are in the same direction and are all structures that imitate the lower part of the connecting rod with flash. This design facilitates continuous and rapid operation of the feeding robot 6 and the picking robot 7, and ensures the stability of the transmission process and the placement of the connecting rod.

[0078] In addition, all cylinder air sources in the present application are connected to the air source of the trimming machine 1 through air pipes, all driving mechanisms are controlled by a control system, and the temperature data monitored by sensors such as thermometers will also be sent to the control system, which realizes automatic control of trimming, material collection and separate placement.

[0079] Working principle:

[0080] The initial state before the automatic trimming, taking out and placing mechanism works is that the transverse frame in the automatic transmission mechanism 3 is close to the light curtain switch 312, the feeding manipulator 6 is located on the side of the designated position of the automatic transmission mechanism, and the taking manipulator 7 is located on the left front of the trimming machine 1; the trimming, taking out and placing working process is as follows:

[0081] Step 1. The operator places the high-temperature forged connecting rod 10 with flash on the first positioning die 310 of the automatic transmission mechanism 3, and the positioning groove of the first positioning die 310 is engaged with the lower part of the connecting rod 10 with flash for positioning. When the operator has finished placing and his arm leaves the light curtain switch 312, the servo transverse driving mechanism 305 is started, and the transverse movable block 306 drives the transverse frame, the first positioning die 310, and the connecting rod 10 with flash to the specified position;

[0082] Step 2. When the flash connecting rod 10 reaches the specified position, the first temperature measuring instrument 314 detects the temperature signal. If the detected temperature is greater than 600°C, the feeding robot 6 is controlled to drive the feeding mechanism 4 to move forward, and the flash in the flash connecting rod is partially placed between the upper clamping jaw 407 and the lower clamping jaw 408. Then, the clamping cylinder 404 is controlled to act (clamp), and the upper clamping jaw 407 and the lower clamping jaw 408 fix the flash connecting rod 10, and move along the set route with the feeding robot 6 to the top of the first positioning mold 310 in the automatic transmission mechanism 3, and at the same time, the servo transverse driving mechanism 305 is controlled to return to the initial position;

[0083] Step 3. The feeding manipulator 6 is controlled to move according to the temperature signal of the second temperature measuring instrument 514. When the flash connecting rod 10 is sent to the lower trimming die 21 of the trimming machine 1, the clamping cylinder 404 is reset, the flash connecting rod 10 is separated from the upper clamping jaw and the lower clamping jaw, and the lower part of the flash connecting rod 10 is embedded in the lower trimming die 21. The feeding manipulator 6 drives the feeding mechanism 4 to withdraw from the trimming die 2, returns to the initial position, and starts the trimming machine 1 at the same time;

[0084] Step 4. The connecting rod with the flash is separated from the flash by the engagement of the upper trimming die and the lower trimming die of the trimming machine 1; then the material taking manipulator 7 is controlled to move, and the material taking manipulator drives the material taking and placing mechanism 5 to enter the trimming die 2 along the set route, and when the two oppositely arranged semicircular support blocks in the material taking and placing mechanism 5 are facing the inner hole of the big end of the connecting rod after the flash is cut, step 5 is executed;

[0085] Step 5. The material taking manipulator 7 controls the material taking and placing mechanism 5 to descend. When the two oppositely arranged semicircular support blocks are completely in the inner hole of the connecting rod big end, the connecting rod support cylinder 502 is controlled to operate so that the support blocks tighten the inner hole of the connecting rod big end and step 6 is executed;

[0086] Step 6. Control the flash supporting cylinder 508 to move, and the forks at both ends of the fork supporting fixing seat 509 are respectively placed under the large end and the small end of the flash to hold the cut flash;

[0087] Step 7. The material taking manipulator 7 controls the material taking and placing mechanism 5 to rise, and the fork support rises along with the material taking and placing mechanism 5. The connecting rod is tightened by the support block, and the flash is supported by the fork support and leaves the trimming die, and the separated connecting rod and the flash are taken out at the same time;

[0088] Step 8. The material taking manipulator 7 controls the material taking and placing mechanism 5 to move to the top of the flash conveying chain 8, the flash holding cylinder is reset, the left and right fork supports are retracted with the piston rod, and the flash is separated from the connecting rod under the action of the flash baffle and gravity and falls onto the flash conveying chain 8;

[0089] When taking materials and placing them separately, the second temperature meter 514 on the taking materials and placing them separately detects the temperature signal. If the measured temperature is greater than 600°C, the feeding manipulator 6 is controlled to drive the feeding mechanism 4 to put the connecting rod with flash into the trimming die 2. If the measured temperature is less than 600°C, the feeding manipulator 6 does not move forward, and the connecting rod with flash will not be put into the trimming die 2. At the same time, the taking materials and placing them separately mechanism 5 moves to the top of the connecting rod placement table 9 along the route set by the taking materials manipulator 7, controls the connecting rod support cylinder 502 to reset, and the connecting rod falls into the second positioning die 91 of the connecting rod placement table 9 under the action of gravity.

[0090] Step 9. The material picking and placing mechanisms return to their initial positions along the route set by the material picking robot and cycle in sequence.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model, rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the embodiments of the utility model.

Claims

1. An automatic trimming, taking out and placing mechanism for connecting rods of automobile engines, characterized in that: It includes trimming machine, automatic transmission mechanism, feeding manipulator, feeding mechanism, picking manipulator, picking and placing mechanism, flash transmission chain, and connecting rod placing table; Wherein, the trimming machine is used to punch the connecting rod with flash placed in the trimming die to separate the flash from the connecting rod; The automatic transmission mechanism is arranged on one side of the trimming machine; The feeding manipulator is close to the automatic transmission mechanism and is arranged in front of the trimming machine. A feeding mechanism is arranged on a fixed plate at the end of the feeding manipulator. The feeding mechanism cooperates with the feeding manipulator to remove the connecting rod with flash from the automatic transmission mechanism and send it to the lower trimming die of the trimming die. The material taking manipulator is far away from the automatic transmission mechanism and is arranged in front of the trimming machine. A material taking and placing mechanism is arranged on the fixed plate at the end of the material taking manipulator. The material taking and placing mechanism cooperates with the material taking manipulator to simultaneously take out the separated connecting rod and flash in the trimming die and place them separately, and place the flash on the flash conveying chain and the connecting rod on the connecting rod placing table. The flash conveying chain is arranged close to the other side of the trimming machine and is used to convey the flash placed on the flash conveying chain to the flash box; The connecting rod placement platform is close to the flash conveying chain and is arranged on the outside of the flash conveying chain, and is used for placing the connecting rod.

2. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 1 is characterized in that: The automatic transmission mechanism and the trimming machine are arranged on the same axis, and the automatic transmission mechanism includes an overall supporting frame, a servo transverse driving mechanism, a transverse frame, a first positioning mold, a light curtain switch bracket, a light curtain switch, a first thermometer bracket, and a first thermometer; wherein, the servo transverse driving mechanism, the light curtain switch bracket, and the first thermometer bracket are installed on the overall supporting frame, the servo transverse driving mechanism is driven by a motor to reciprocate the transverse movable block thereon, the transverse frame is fixed on the transverse movable block of the servo transverse driving mechanism, the first positioning mold is fixed on the transverse frame, the light curtain switch is installed on the light curtain bracket, and the first thermometer is installed on the first thermometer bracket.

3. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 1, characterized in that: The feeding mechanism includes a clamping cylinder, an upper clamping jaw, and a lower clamping jaw; wherein, the upper clamping jaw is fixed on the first clamping cylinder movable block of the clamping cylinder, and the head of the upper clamping jaw is "L"-shaped; the lower clamping jaw is fixed on the second clamping cylinder movable block of the clamping cylinder, and the head of the lower clamping jaw is "concave"-shaped; the "L"-shaped head of the upper clamping jaw is directly opposite to the middle of the groove of the "concave"-shaped head of the lower clamping jaw.

4. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 1, characterized in that: The material taking and placing mechanism comprises a fixed plate, a supporting connecting rod mechanism installed on the fixed plate, a flash edge supporting mechanism, and a temperature measuring mechanism installed on the fixed plate; wherein the supporting connecting rod mechanism is used to tighten the inner hole of the connecting rod big end after trimming and then take out the connecting rod, and the supporting connecting rod mechanism comprises a supporting connecting rod cylinder fixed on one side of the fixed plate, and two movable air claws of the supporting connecting rod cylinder are respectively connected to two supporting block connecting rods, and the ends of the supporting block connecting rod are respectively connected to two semicircular supporting blocks arranged oppositely; The burr supporting mechanism is used to lift up the burr after trimming and remove the burr. The burr supporting mechanism includes a burr supporting cylinder fixed on the other side of the fixing plate. The piston rod of the burr supporting cylinder is connected to a fork support fixing seat. A pair of symmetrical L-shaped fork supports are installed at both ends of the fork support fixing seat. The support block connecting rod is provided with a flash baffle, the side of which is close to the flash and is used to block the flash when the fork support is retracted, so that the flash is separated from the connecting rod; The temperature measuring mechanism is used to measure the temperature of the connecting rod small end taken out after trimming, and the temperature measuring mechanism comprises a second temperature measuring instrument bracket fixed on the side of the fixing plate, and a second temperature measuring instrument is fixed on the second temperature measuring instrument bracket.

5. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 1, characterized in that: The connecting rod placement platform includes a second positioning mold, a placement platform support rod, and a placement platform base. The large head hole in the second positioning mold is connected to the cylindrical placement platform support rod, and the other end of the placement platform support rod is connected to the rectangular placement platform base.

6. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 2, characterized in that: The overall supporting frame is welded by anchors, legs, cross braces, and channel steels; the transverse frame is welded by a mobile frame bottom plate, mobile frame support rods, and a mobile frame top plate; the channel steel notches are welded downward to the four legs, the lower ends of the four legs are respectively connected to the four anchors, and four cross braces are welded to the bottom of the four legs; the mobile frame bottom plate is connected to the transverse movable block, and the mobile frame top plate is connected to the mobile frame bottom plate through four mobile frame support rods.

7. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 3, characterized in that: The feeding mechanism also includes a feeding fixed plate, a first clamping cylinder fixed side plate, and a second clamping cylinder fixed side plate. The upper surface of the feeding fixed plate is connected to the fixed plate at the end of the feeding robot; the first clamping cylinder fixed side plate and the second clamping cylinder fixed side plate are vertically fixed to the front section of the lower surface of the feeding fixed plate; the clamping cylinder is fixed between the first clamping cylinder fixed side plate and the second clamping cylinder fixed side plate.

8. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 4 is characterized in that: The connecting rod support cylinder and the flash support cylinder are both fixed on both sides of the lower surface of the fixed plate and are arranged parallel to the fixed plate; the diameter of the circular support block formed by the combination of the two relatively arranged semicircular support blocks is smaller than the diameter of the inner hole of the connecting rod big end, and is matched with the clearance of the inner hole of the connecting rod big end.

9. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 4, characterized in that: The flying edge supporting cylinder is a three-rod flying edge supporting cylinder, which is connected to a fixed plate via four fixed rods. The length of the fixed rods must be such that after the two semicircular support blocks tighten the connecting rods, when the flying edge supporting cylinder is actuated, the fork supports at both ends are exactly located at the bottom of the flying edge.

10. The automatic trimming, taking out and placing mechanism for connecting rods of automobile engines according to claim 4, characterized in that: The fork support fixing seat is an L-shaped structure, including a vertical seat and a horizontal seat. The vertical seat is connected to the movable part of the three-rod cylinder supporting the burr edge. The two ends of the horizontal seat are respectively installed with an L-shaped left fork support and an L-shaped right fork support. The fixing hole on the horizontal seat and the fork support positioning hole on the vertical seat are both groove-type structures; a groove-type hole is processed on the second thermometer bracket, and the second thermometer is fixed in the groove-type hole on the second thermometer bracket. The second thermometer is a cylindrical thermometer. The second thermometer and the tightened connecting rod are in the same plane, and the center of the second thermometer is aligned with the center of the small end of the connecting rod.

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