CN110180921A - Automobile spring reed riveting bending mechanism - Google Patents

Abstract

The invention discloses an automobile leaf spring riveting and bending mechanism, which includes an indexing plate, a number of bending carriers arranged on the indexing plate, and a spring leaf feeding device arranged on the outer periphery of the indexing plate and matched with the bending carriers , a rivet feeding device, a riveting device, and a bending device, the spring sheet feeding device includes a turntable, a number of feeding carriers arranged on the turntable, and a feeding hand that cooperates with the feeding carrier to absorb products, and the The loading carrier includes a hollow base, a boss set in the base for mounting products, a guide post set on the boss for penetrating and guiding the product, and a base extending below the base to the hollow of the base. Pushing the product within the position to move to the jacking block at the top of the guide post, the rivet feeding device includes a jaw that moves and clamps the rivet, a first pressing piece that is used to position the product and a second pressing piece that is displaced synchronously with the jaw. Press down. The invention realizes automatic riveting and bending of automobile spring sheets, and improves processing efficiency.

Description

Automobile spring leaf riveting and bending mechanism

technical field

The invention belongs to the technical field of automobile spring leaf processing equipment, in particular to a riveting and bending mechanism for automobile spring leaf.

Background technique

The structural feature of the spring sheet is that it is easy to bend on the plane with the minimum stiffness in one direction, and has a large tensile stiffness and bending stiffness in the other direction. The leaf spring is suitable for use as a sensitive element, an elastic support, a positioning device, and a flexible connection in a device. Automobile springs need to have a riveting and bending structure. In the traditional riveting process, multiple stations need to be coordinated. Due to the different positions of the riveting points, multiple debugging and positioning are required; The height of the spring piece also needs to be detected again. The traditional measurement method is mechanical crimping, and the sensor detects the distance. The mechanical crimping process is prone to positioning deviation, resulting in inaccurate sensor detection results; in the traditional bending process, due to the rigidity of the positioning fixture structure, resulting in excessive bending and easy damage; the processing steps of the entire spring sheet are numerous, and the processing efficiency is low.

Contents of the invention

The object of the present invention is to solve the above-mentioned technical problems, and provide a riveting and bending mechanism for automobile springs, thereby realizing automatic riveting and bending of automobile springs and improving processing efficiency. In order to achieve the above object, the technical scheme of the present invention is as follows:

Automobile spring sheet riveting and bending mechanism, including indexing plate, several bending carriers arranged on the indexing plate, spring sheet feeding device arranged on the outer periphery of the indexing plate and matched with the bending carrier, rivet feeding device, riveting device, the spring sheet feeding device includes a turntable, a number of feeding carriers arranged on the turntable, and a feeding hand that cooperates with the feeding carrier to suck the product, and the feeding carrier includes a hollow base Seat, a boss set in the base for mounting products, a guide post set on the boss for penetrating and guiding the product, and a guide post set under the base extending to the hollow position of the base to push the product to move to the guide post The jacking block at the top, the rivet feeding device includes jaws that are moved and set to clamp the rivets, a first pressing piece that is used to position the product and a second pressing piece that is displaced synchronously with the jaws.

Specifically, the automobile spring sheet riveting and bending mechanism also includes a rivet visual inspection device and a bending visual inspection device that are arranged on the outer periphery of the indexing plate and cooperate with the bending carrier.

Specifically, the product includes a U-shaped body and an angled portion connecting the end of the body to turn and extend, and a riveting hole is provided at the end of the angled portion and the initial end of the body.

Specifically, the bending carrier includes a support plate for positioning products, and a bending die knife penetrating through the support plate to its surface.

Specifically, bosses are provided at diagonal positions of the hollow structure of the base, guide blocks are provided on the outside of each boss, and right-angle ribs are provided on the sides of the guide blocks facing the guide post.

Specifically, the loading hand includes a moving loading plate and a feeding suction cup located at the bottom of the loading plate. Above, the top of the feeding plate is connected with a suction cylinder, and the transverse moving plate slides along the first transverse slide rail, which is arranged above the turntable and the indexing plate.

Specifically, the top of the jaw is connected with a splint, and one side of the splint is provided with an auxiliary rod that cooperates with the jaw to position the rivet. The bottom of the auxiliary rod is attached to the top of the rivet. The pressing piece is fitted into the U-shaped structure of the body, and the rivets in the auxiliary rod and the jaw are placed in the riveting hole in the corner; or the second pressing piece is fitted into the U-shaped structure of the body, and the auxiliary rod and the clamp The rivets in the claws are placed in the riveting holes at the beginning of the body.

Specifically, the riveting device includes a riveting upper die arranged above the bending carrier, and a riveting head arranged at the bottom of the riveting upper die corresponding to the position of the rivet.

Compared with the prior art, the beneficial effects of the automobile spring sheet riveting and bending mechanism of the present invention are mainly reflected in:

The support plate and the mounting plate in the bending carrier are elastically connected to effectively buffer the crimping pressure and facilitate crimping and forming. The inner arc of the bending die knife fits the corner to determine the forming angle. The rigid structure damages the parts, and the product forming effect is good; the product is positioned on the inner boss of the loading carrier, the guide column cooperates with the top block to push the product to the position of the feeding suction cup, and the feeding suction cup accurately transfers the product to the bending carrier, realizing The feeding is accurate and fast; the right-angle rib inside the guide block assists in guiding the position of the product on the guide column to ensure the stability of feeding; the jaws in the rivet feeding device cooperate with the auxiliary rod to accurately transfer the rivets in the vibrating plate to the At the position to be riveted in the product, the first and second lower pressing parts are stably positioned on the U-shaped structure of the body to ensure that the jaws are positioned in place; the bending groove in the bending device matches the arc of the bending die knife The shape department performs bending operation on the inner corner of the product, and the second pad effectively controls the bending height to ensure the forming effect; the rivet visual inspection device and the bending visual inspection device detect whether the rivet is in place, whether its height is qualified and press Whether the bending height is qualified or not, avoid the flow of unqualified products in time; the overall mechanism realizes automatic feeding, riveting, bending, testing, and unloading of products to improve processing efficiency.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the present invention;

Fig. 2 is one of the structural schematic diagrams of the spring sheet feeding device of the present embodiment;

Fig. 3 is the second structural diagram of the spring leaf feeding device of the present embodiment;

Fig. 4 is a schematic diagram of the structure of the loading carrier in this embodiment;

Fig. 5 is a schematic diagram of the structure of the bending carrier in this embodiment;

Fig. 6 is a partially enlarged schematic diagram of Fig. 5;

Fig. 7 is one of the schematic diagrams of the structure of the rivet feeding device in this embodiment;

Fig. 8 is the second structural diagram of the rivet feeding device in this embodiment;

Fig. 9 is the third structural diagram of the rivet feeding device in this embodiment;

Fig. 10 is a schematic diagram of the jaw removal structure of the rivet feeding device in this embodiment;

Fig. 11 is the fourth schematic diagram of the structure of the rivet feeding device in this embodiment;

Fig. 12 is a schematic structural diagram of the rivet visual detection device of this embodiment;

Fig. 13 is a schematic structural diagram of the riveting device of this embodiment;

Fig. 14 is a structural schematic diagram of the bending device of this embodiment;

Fig. 15 is a partially enlarged schematic diagram of Fig. 14;

Fig. 16 is a schematic structural diagram of the bending visual detection device of this embodiment;

Fig. 17 is a schematic diagram of the structure of the feeding chute in this embodiment;

The numbers in the figure indicate:

1 indexing plate, 11 bending carrier, 12 support plate, 13 bending die knife, 131 horizontal part, 132 arc part, 14 positioning pin, 15 mounting plate, 16 bottom plate, 17 spring, 18 guide shaft;

2 spring sheet feeding device, 21 turntable, 22 base, 23 boss, 231 guide block, 232 right-angle rib, 24 guide post, 25 top block, 26 gap, 261 vertical guide rail, 262 slide plate, 27 feeding plate, 271 Feeding suction cup, 272 Transverse moving plate, 273 Suction cylinder, 274 First transverse slide rail, 28 Limit frame, 281 Limit block;

3 Rivet feeding device, 31 Rivet, 32 Gripper, 321 Plywood, 322 Auxiliary bar, 323 Second horizontal slide rail, 324 Third horizontal slide rail, 325 First vertical cylinder, 33 First pressing piece, 34 The first Two lower pressing parts, 341 second vertical cylinder, 35 vibrating plate, 36 limit plate;

4 Rivet visual inspection device, 41 first camera, 42 first light source, 43 first shield;

5 riveting device, 51 riveting upper die, 52 first pad;

6 bending device, 61 bending upper mold, 62 bending groove, 63 second pad;

7 bending vision detection device, 71 second camera, 72 second light source, 73 second shield;

8 body, 81 folded corners, 82 riveting holes, 83 positioning holes;

9 blanking troughs, 91 blanking plates, 92 blanking suction cups, 93 horizontal slide plates, 94 blanking cylinders, 95 fourth horizontal slide rails.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them.

Example:

Referring to Fig. 1-17, the present embodiment is an automobile leaf spring riveting and bending mechanism, including an indexing plate 1, a number of bending carriers 11 arranged on the indexing plate 1, and a And the spring sheet feeding device 2 , the rivet feeding device 3 , the rivet visual inspection device 4 , the riveting pressing device 5 , the bending device 6 , and the bending visual inspection device 7 cooperated with the bending carrier 11 .

In this embodiment, the product is a car spring, and the product includes a U-shaped body 8 and a knuckle 81 that connects the end of the body 8 to rotate and extend. A crimping hole 82 is formed at the end of the corner portion 81 and the beginning of the body 8 . Positioning holes 83 are provided at the ends of the sides of the main body 8 and the ends of the sides of the angled portion 81 respectively having riveting holes 82 .

The bending carrier 11 includes a support plate 12 elastically connected to the top of the index plate 1 , and a bending die knife 13 penetrating through the support plate 12 to its surface. The bending die knives 13 are respectively provided at the bottom of the corner portion 81 and the bottom of the side of the main body 8 . The top of the bending die knife 13 is provided with a horizontal part 131 and an arc part 132. The horizontal part 131 is attached to the corner part 81 or the side of the body 8, and the arc part 132 at the bottom of the corner part 81 and the bottom of the body 8 is opposite. to the settings. The arc portion 132 is disposed toward the positioning hole 83 . The supporting plate 12 is provided with a positioning pin 14 corresponding to the positioning hole 83 .

The bending carrier 11 also includes a mounting plate 15 disposed below the support plate 12 , and a bottom plate 16 disposed below the mounting plate 15 . A guide sleeve (not shown) embedded in the indexing plate 1 is sandwiched between the mounting plate 15 and the base plate 16, the mounting plate is placed on the top of the indexing plate 1, and the base plate is placed on the bottom of the indexing plate 1. A spring 17 is clamped between the mounting plate 15 and the supporting plate 12 . The bottom of the bending die knife 13 passes through the mounting plate 15 and is connected to the bottom plate 16 . The spring 17 is sleeved on the outer periphery of the guide shaft 18 , the bottom of the guide shaft 18 is fixedly connected with the guide sleeve, and the top of the guide shaft 18 is movably placed in the support plate 12 .

The spring sheet feeding device 2 includes a turntable 21, a number of feeding carriers arranged on the turntable 21, and a feeding hand that cooperates with the feeding carriers to suck products. The feeding carrier includes a hollow base 22, a boss 23 set in the base 22 for mounting products, a guide post 24 set on the boss 23 for penetrating and guiding the product, and a guide post 24 set on the base 22. Extending below to the hollow position of the base 22 to push the product to move to the top block 25 at the top of the guide post 24 .

The index plate 1 is provided with a plurality of notches 26 corresponding to the hollow positions in the base 22 . The bottom of jack block 25 is connected with driving device, and driving device comprises the vertical guide rail 261 that is located at index plate 1 below, the slide plate 262 that moves along vertical guide rail 261, the push cylinder (not shown in the figure) that drives slide plate 262 . The top block 25 is connected to the end of the slide plate 262 . The top block 25 is set corresponding to the position of the notch 26 .

The hollow structure of the base 22 is provided with bosses 23 at diagonal positions, each boss 23 is provided with a guide block 231 outside, and the guide block 231 is provided with a right-angle rib 232 facing the side of the guide post 24 . When the push block 25 pushes the product to move along the guide post 24, the inner side of the guide block 231 assists in guiding the product to prevent the product from tilting in the guide post 24 on both sides.

The feeding hand includes a moving feeding board 27 and a feeding suction cup 271 located at the bottom of the feeding board 27 . The feeding suction cup 271 corresponds to the product in the feeding carrier. The feeding board 27 is arranged on the laterally moving board 272 , the top of the feeding board 27 is connected with a suction cylinder 273 , and the laterally moving board 272 slides along the first lateral sliding rail 274 . The first transverse sliding rail 274 is disposed above the turntable 21 and the indexing disk 1 .

The spring feeding device 2 also includes a limit frame 28, the top of the limit frame 28 is provided with symmetrically spaced limit blocks 281, and the distance between the symmetrical limit blocks 281 is set to limit the distance of the feeding sucker 271. The limit block 281 is provided with a sensor (not shown in the figure) that senses the position of the feeding suction cup 271, and the position of the feeding suction cup 271 descending to the loading carrier is accurate.

The rivet feeding device 3 includes a clamping jaw 32 that is movable and set to clamp the rivet 31 , a first pressing member 33 that is displaced synchronously with the clamping jaw 32 , and a second pressing member 34 . The rivet feeding device 3 also includes a vibrating plate 35 , and a limit plate 36 arranged at the end of the conveying path of the vibrating plate 35 for retaining the rivets 31 . The limiting plate 36 positions the rivets 31 one by one, and when the end rivet 31 is removed, the limiting plate 36 releases the next rivet 31 . The top of the jaw 32 is connected with a splint 321, and one side of the splint 321 is provided with an auxiliary rod 322 that cooperates with the jaw 32 to position the rivet 31. side. The other side of the splint 321 is provided with a first pressing member 33 , and the side of the splint 321 located at the auxiliary rod 322 is provided with a second pressing member 34 . The clamping plate 321 moves along the second transverse slide rail 323 , and the second transverse slide rail 323 moves along the third transverse slide rail 324 .

The clamping plate 321 is provided with a first vertical cylinder 325 to drive it to press down. The second pressing member 34 is provided with a second vertical cylinder 341 to drive it to press down. In this embodiment, there are two types of stations for the rivet feeding device 3 , the first pressing part 33 fits into the U-shaped structure of the body 8 , and the rivets in the auxiliary rod 322 and the jaw 32 are placed in the corners 81 . In the riveting hole 82 ; or the second pressing piece 34 fits into the U-shaped structure of the body 8 , and the rivets in the auxiliary rod 322 and the jaw 32 are placed in the riveting hole 82 at the beginning of the body 8 .

The rivet visual inspection device 4 includes a first camera 41 arranged above the bending carrier 11 , a first light source 42 arranged below the first camera 41 , and a first shield surrounding the periphery of the first camera 41 and the first light source 42 . Cover 43, the first light source 42 illuminates the surface of the product, and is used to detect whether the rivet is missing.

The riveting device 5 includes a riveting upper die 51 arranged above the bending carrier 11 , and a riveting head (not marked in the figure) arranged at the bottom of the riveting upper die 51 corresponding to the position of the rivet. The riveting head and the rivet are crimped to realize the riveting operation. The riveting device 5 also includes a first pad 52 disposed under the bending carrier 11 , and the first pad 52 corresponds to the position of the bottom plate 16 .

The bending device 6 includes a bending upper die 61 disposed above the bending carrier 11 , and a bending groove 62 disposed at the bottom of the bending upper die 61 corresponding to the position of the arc portion 132 . The bending upper die 61 presses the carrier plate 12 and moves down, and the bending groove 62 presses the corner portion 81 and deforms to fit the arc portion 132 to complete the bending operation. The bending device 6 also includes a second pad 63 disposed under the bending carrier 11 , and the second pad 63 corresponds to the position of the bottom plate 16 .

The bending visual inspection device 7 includes a second camera 71 symmetrically arranged on both sides of the bending carrier 11, a second light source 72 respectively arranged between the second camera 71 and the bending carrier 11, and a second camera enclosed 71 and the second shield 73 on the periphery of the second light source 72 . The second light source 72 illuminates the corners 82 on both sides of the product to detect whether the height of the rivet and the bending height of the product are qualified after the product is pressed.

The automobile spring sheet riveting and bending mechanism also includes a blanking trough 9 and a blanking hand corresponding to the product in the bending carrier 11 . The blanking hand includes a movable blanking plate 91 and a blanking sucker 92 arranged at the bottom of the blanking plate 91 . The blanking suction cup 92 corresponds to the product in the bending carrier 11 . The blanking plate 91 is arranged on the transverse slide plate 93 , the top of the blanking plate 91 is connected with a blanking cylinder 94 , and the transverse slide plate 93 slides along the fourth transverse slide rail 95 . The fourth transverse slide rail 95 is disposed above the unloading chute 9 and the bending carrier 11 .

When applying this embodiment, the inner turntable 21 of the feeding carrier in the spring sheet feeding device 2 brings the product to the bottom of the feeding hand, and the top block 25 below the base 22 pushes the product to its top along the guide column 24, and the feeding suction cup 271 The suction product is placed on the bending carrier 11 in the indexing plate 1; the indexing plate 1 drives the product to the rivet feeding device 3, and the gripper 32 and the auxiliary rod 322 place the rivet in the rivet hole 82; the indexing plate 1 Drive the product to the rivet visual inspection device 4 for rivet detection; the indexing plate 1 drives the product to the riveting device 5, and the riveting operation is performed in the rivet hole of the product; the indexing plate 1 drives the product to the bending device 6, and the corner of the product is 81 to carry out the bending operation; the index plate 1 drives the product to the bending visual inspection device 7, and detects the parts of the riveting operation and bending operation; the qualified products are placed in the qualified discharge trough, and the unqualified products are placed in the unqualified lower In the trough.

In this embodiment, the supporting plate 12 and the mounting plate 15 in the bending carrier 11 are elastically connected to effectively buffer the crimping pressure and facilitate crimping and forming. Angle, the floating height on the mounting plate 15 is controllable, avoiding damage to parts by the rigid structure, and the product forming effect is good; the product is positioned on the inner boss 23 of the loading carrier, and the guide post 24 cooperates with the top block 25 to push the product to the position of the feeding suction cup 271 , the feeding suction cup 271 accurately transfers the product to the bending carrier 11 to realize accurate and fast feeding; the right-angle rib 232 in the guide block 231 assists in guiding the position of the product on the guide column 24 to ensure the stability of feeding The inner jaw 32 of the rivet feeding device 3 cooperates with the auxiliary rod 322 to accurately transfer the rivet in the vibrating plate 35 to the position to be riveted in the product, and the first pressing part 33 and the second pressing part 34 are stably positioned on the body 8 On the U-shape structure, ensure that the jaws 32 locate the rivets in place; the bending groove 62 in the bending device 6 cooperates with the arc portion 132 of the bending die knife 13 to perform bending operations on the inner corner 81 of the product, and the second pad 63 Effectively control the bending height to ensure the forming effect; the rivet visual detection device 4 and the bending visual detection device 7 detect whether the rivet is in place, whether its height is qualified and whether the bending height is qualified, and timely avoid the flow of unqualified products; The overall mechanism realizes automatic feeding, riveting, bending, testing and unloading of products, improving processing efficiency.

What have been described above are only some embodiments of the present invention. For those skilled in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, and these all belong to the protection scope of the present invention.

Claims (8)

1. The car spring sheet riveting bending mechanism is characterized in that: it includes an indexing plate, a number of bending carriers arranged on the indexing plate, and a spring sheet arranged on the outer periphery of the indexing plate and matched with the bending carrier A feeding device, a rivet feeding device, and a riveting device. The spring leaf feeding device includes a turntable, a number of feeding carriers arranged on the turntable, and a feeding hand that cooperates with the feeding carrier to suck the product. The carrier includes a hollow base, a boss set in the base for mounting products, a guide post set on the boss for penetrating and guiding the product, and a base extending below the base into the hollow position of the base Pushing the product to move to the top block at the top of the guide column, the rivet feeding device includes a jaw that is moved and set to grab the rivet, a first pressing piece that is used to position the product and a second pressing piece that is displaced synchronously with the jaw pieces. 2. The automobile leaf spring riveting and bending mechanism according to claim 1, characterized in that: the automobile spring leaf riveting and bending mechanism also includes a rivet visual detection device arranged on the outer periphery of the indexing plate and cooperating with the bending carrier device and bending vision inspection device. 3. The automobile spring sheet riveting and bending mechanism according to claim 1, characterized in that: the product includes a U-shaped body, a knuckle part connecting the end of the body to rotate and extend, the end of the knuckle part and the body There is a riveting hole at the beginning. 4. The automobile spring sheet riveting and bending mechanism according to claim 1, characterized in that: the bending carrier includes a support plate for positioning products, and a bending die knife penetrating through the support plate to its surface . 5. The automobile spring sheet riveting and bending mechanism according to claim 1, characterized in that: bosses are respectively provided at the diagonal positions of the hollow structure of the base, and guide blocks are provided on the outside of each boss, so that The side of the guide block facing the guide column is provided with a right-angle rib. 6. The automobile spring sheet riveting and bending mechanism according to claim 1, characterized in that: the feeding hand includes a moving feeding plate, a feeding suction cup arranged at the bottom of the feeding plate, the feeding The suction cup corresponds to the product in the loading carrier. The feeding plate is set on the lateral moving plate. The top of the feeding plate is connected with a suction cylinder. The lateral moving plate slides along the first horizontal slide rail, which is set on the turntable. with the top of the dial. 7. The automobile spring leaf riveting and bending mechanism according to claim 3, characterized in that: the top of the jaw is connected with a splint, and one side of the splint is provided with an auxiliary rod that cooperates with the jaw to position the rivet, and the auxiliary rod The bottom of the rivet is attached to the top of the rivet, the jaws clamp both sides of the rivet, the first pressing piece is attached to the U-shaped structure of the body, and the auxiliary rod and the rivet in the jaw are placed in the riveting hole in the corner; or The second pressing piece fits into the U-shaped structure of the body, and the auxiliary rod and the rivets in the jaws are placed in the riveting holes at the initial end of the body. 8. The automobile spring sheet riveting and bending mechanism according to claim 1, characterized in that: the riveting device includes a riveting upper die arranged above the bending carrier, a riveting upper die arranged at the bottom of the riveting upper die and the rivet Corresponding riveting head.