Connecting rod flaw detection and straightening integrated equipment

Abstract

The invention relates to the technical field of connecting rod machining devices, in particular to connecting rod flaw detection and straightening integrated equipment which comprises a feeding area, a flaw detection area and a straightening area which are sequentially connected to form a coherent production line. The feeding area comprises a discharging unit. The discharging unit comprises a fixing rod, an inclined plate and an electric cylinder. The flaw detection area comprises a conveying belt and a bracket fixed on the conveying belt, material receiving units are symmetrically arranged on the bracket, and each material receiving unit comprises a pressure spring, a supporting plate, a supporting block, an ejector rod and a baffle; the bottom of the supporting block and the bottom of the ejector rod are fixed to the supporting plate, the supporting block and the ejector rod are both connected with the bracket in a sliding mode, and the top of the ejector rod is in a spherical shape. V-shaped grooves are symmetrically formed in the bracket, the supporting blocks are located in the V-shaped grooves, when the compressed springs are in a non-compressed state, the supporting blocks protrude out of the inclined faces of the V-shaped grooves, and the baffles are in a turned-up state relative to the upper plane of the bracket. According to the feeding device, the feeding efficiency, accuracy and stability can be improved, and the production cost is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of connecting rod processing devices, and specifically to an integrated device for connecting rod flaw detection and straightening. Background Art

[0002] Connecting rod straightening and flaw detection are important processes to ensure the quality and performance of connecting rods. When a connecting rod is working, the force it bears is complex, and there may be defects such as pores, cracks, and porosity inside. Flaw detection can detect internal and surface defects, evaluate quality and safety, and prevent serious accidents such as connecting rod fracture caused by the expansion of defects during use. At the same time, due to the long material and structure length of the connecting rod, as well as the reason of heat treatment deformation, the connecting rod is prone to different degrees of bending deformation under the action of internal stress. The deformed connecting rod needs to be restored to a straight state through the straightening process, so that the runout values of all parts of the connecting rod meet the requirements to ensure product quality.

[0003] Flaw detection and straightening are two independent processes in themselves. In actual production, usually two production lines are set up, but this brings the problem that the material transfer is very inconvenient. For example, after the flaw detection process is completed, workers need to carry the connecting rod to the straightening process, which is very labor-consuming and time-consuming. Therefore, the prior art "an integrated production line for straightening, flaw detection, and cutting of ultra-long steel pipes" (publication number: CN216541859U) discloses an integrated production line for straightening and flaw detection, which connects the straightening production line and the flaw detection and cutting production line during the processing of ultra-long steel pipes. After the steel pipe is straightened, it is lifted by a transfer plate with an inclined upper edge, and then the steel pipe rolls onto the transport roller path of the next production line along the inclined plane of the upper edge of the transfer plate, greatly reducing the transportation difficulty. However, the prior art still has the following technical problems:

[0004] The existing integrated flaw detection and straightening equipment is designed for ultra-long steel pipes, and multiple transport rollers are required to support one steel pipe. Its structure focuses on adapting to the support and processing of large-volume and large-diameter pipes. The layout of the flaw detection and inspection unit and the design of the inspection probe of the equipment are also designed around the surface requirements of ultra-long pipes. However, for automotive shaft-like rods with short length and small diameter, the structure of the prior art is too large and cannot be adapted. At the same time, in order to ensure safety, the loading process of ultra-long pipes is relatively slow, and the production efficiency is low, which cannot meet the fast and efficient loading rhythm of slender shaft-like rods; if high-efficiency automated machinery such as manipulators is used for loading, the production cost will be greatly increased, increasing the burden on enterprises. Summary of the Invention

[0005] The present invention provides an integrated device for connecting rod flaw detection and straightening, which can solve the problems that the existing equipment in the prior art cannot be applied to the production of slender shaft-like rods, and the slow loading rhythm leads to low production efficiency and high production cost.

[0006] The present application provides the following technical solutions: a connecting rod flaw detection and straightening integrated equipment, comprising a loading area, a flaw detection area and a straightening area which are sequentially connected to form a continuous production line;

[0007] The loading area includes a chain plate elevator and a blanking unit fixed on the chain plate elevator, and the blanking unit includes a fixed rod fixed on the chain plate elevator, a slanted plate rotatably connected to the fixed rod, and an electric cylinder fixed on the chain plate elevator;

[0008] The flaw detection area includes a conveyor belt and a bracket fixed on the conveyor belt, and a material receiving unit is symmetrically arranged on the bracket, and the material receiving unit includes a compression spring fixed on the bracket, a support plate fixed on the compression spring, a support block fixed on the support plate, a push rod fixed on the bracket, and a baffle rotatably connected to the bracket; the bottom of the support block and the push rod are fixed to the support plate, and the support block and the push rod are both slidably connected to the bracket, and the top of the push rod is spherical;

[0009] The bracket is symmetrically provided with V-shaped grooves, the support block is located in the V-shaped grooves, when the compression spring is in a non-compressed state, the support block protrudes from the inclined surface of the V-shaped groove, and the baffle is in a flipped state relative to the upper plane of the bracket.

[0010] Beneficial effects:

[0011] 1. Improve feeding efficiency and reduce production costs. The chain plate elevator can continuously and stably transport slender shaft rods, lift them to a certain height and accurately transfer them to the blanking unit. Since the receiving unit is symmetrically arranged on the bracket, the rods will fall into the V-grooves on the bracket in a certain order. The setting of the electric cylinder can accurately control the rotation angle of the inclined plate, adjust the blanking direction of the rods according to actual production needs, so that the rods can slide into the two V-grooves on the receiving unit in a suitable posture, realize efficient and accurate feeding process, and improve overall production efficiency.

[0012] 2. Improve the accuracy and stability of feeding. The setting of the compression spring gives the pallet buffering ability. When the compression spring is in a non-compressed state, the baffle is lifted up by the ejector rod and is in an upturned state. The spherical shape on the top of the ejector rod can improve the smoothness of the ejector rod lifting the baffle. When the rod quickly slides onto the receiving unit, the baffle provides additional resistance for the rod. When the rod tends to leave the V-groove due to the inertia of sliding, the baffle can block its lateral movement to prevent the rod from rolling off. Then the rod falls back into the V-groove, and its own weight compresses the compression spring, which in turn drives the ejector rod down. The baffle can be restored to a horizontal state with the upper plane of the bracket, and will not interfere with the movement trajectory of the rod for the next drop, so that the next rod can smoothly fall into another V-groove, thereby improving the accuracy and stability of the rod falling into the V-groove on each bracket one by one.

[0013] 3. Simple structure and reduced production costs. Most of the components that make up the blanking unit and the material receiving unit, such as the chain plates of the chain plate elevator, fixed rods, electric cylinders, as well as the brackets, compression springs, and pallet plates in the material receiving unit, are common standard parts or general-purpose parts that are easy to process and manufacture. These parts are easily obtainable in the market, and the procurement cost is relatively low. Moreover, due to their versatility, the cost can also be reduced during equipment maintenance and component replacement. At the same time, due to the simple structure, the number of components is relatively small, and the connections between components are clear. During the operation of the equipment, the probability of failure is relatively low. Once a failure occurs, it is also convenient for the staff to quickly locate and repair, reducing the repair time and repair cost. In addition, the use of general-purpose parts makes it more convenient and less costly to replace components, reducing the equipment maintenance cost and production operation cost.

[0014] Further, a top plate is rotatably connected to the bracket, and the top end of the top plate is slidably connected to the bottom of the baffle. When the baffle is in the turned-up state, the top plate is perpendicular to the baffle.

[0015] Beneficial effect: Since the rod is likely to directly impact the baffle under the action of inertia, and because the top plate is perpendicular to the baffle, the force of the rod on the baffle will be supported by the top plate to prevent the rod from directly flattening the baffle and rolling off the bracket, enhancing the anti-rolling ability of the bracket and ensuring the accuracy of blanking.

[0016] Further, an arc surface is provided at the end of the inclined plate.

[0017] Beneficial effect: When the rod lands on the arc surface, its movement direction will gradually change along with the shape of the arc surface, reducing the falling speed of the rod, which helps the subsequent material receiving unit to accurately catch the rod, enabling the rod to slide more smoothly into the V-shaped groove on the bracket, reducing the possibility of the rod jumping or rolling during the falling process, and improving the stability and reliability of the feeding process.

[0018] Further, the flaw detection area further includes a spray head fixed above the conveyor belt, and the spray head is used to spray the magnetic suspension liquid.

[0019] Beneficial effect: By spraying the magnetic suspension liquid onto the surface of the rod and evenly covering the surface of the workpiece, it can ensure that the entire surface of the workpiece can be fully detected subsequently, avoiding missed detection due to uneven distribution of the magnetic suspension liquid.

[0020] Further, the flaw detection area further includes a detection part, and the detection part is provided with a magnetic particle flaw detection lamp.

[0021] Beneficial effect: The magnetic particle flaw detection lamp provides the necessary lighting conditions so that the inspection personnel can clearly observe the magnetic marks on the surface of the workpiece, thereby judging whether there are defects in the workpiece.

[0022] Further, the straightening area includes an automatic straightening machine.

[0023] Beneficial effects: The automatic straightening machine can automatically complete the straightening operation of workpieces according to preset programs and parameters. It can accurately detect the degree of bending of workpieces and apply external forces to the workpieces through corresponding mechanical devices to make them meet the required straightness standards. This automated operation not only improves the straightening efficiency but also ensures the consistency of straightening quality and reduces errors caused by manual operation. Brief Description of the Drawings

[0024] Figure 1 It is the main structural view of the present invention.

[0025] Figure 2 is Figure 1 the enlarged view of the blanking unit in

[0026] Figure 3 is Figure 1 the enlarged view of the material receiving unit in

[0027] Figure 4 is Figure 1 the right view of the automatic straightening machine in Detailed Description of the Specific Embodiment

[0028] The following is further detailed through specific embodiments:

[0029] The reference signs in the attached drawings of the specification include: chain plate elevator 1, blanking unit 2, bracket 201, fixed rod 202, inclined plate 203, electric cylinder 204, arc surface 205, material receiving unit 3, support block 301, bracket 302, support plate 303, compression spring 304, top plate 305, baffle 306, ejector rod 307, V-shaped groove 308, flaw detection area 4, spray head 401, magnetizing part 402, detection part 403, connecting rod 5, conveyor belt 6, automatic straightening machine 7, sliding seat 701, cylinder 702, motor 703, plastic sleeve 704, pressing head 705, mechanical claw 706, column 707, runout detection unit 708.

[0030] Embodiment 1

[0031] As Figures 1 to 3 shown, the connecting rod flaw detection and straightening integrated device includes a feeding area, a flaw detection area 4, and a straightening area that are connected in sequence to form a continuous production line; the feeding area includes a chain plate elevator 1 and a blanking unit 2 fixed on the chain plate elevator 1, as Figure 2As shown, a bracket 201 is provided on the chain elevator 1, and the blanking unit 2 includes a fixed rod 202 fixed on the bracket 201, an inclined plate 203 rotatably connected to the fixed rod 202, and an electric cylinder 204 fixed on the chain elevator 1; two fixed rods 202 are provided and symmetrically arranged on the bracket 201, the inclined plate 203 is pivotally connected between the two fixed rods 202, the tail end of the electric cylinder 204 is pivotally connected to the bracket 201, and the end of the piston rod of the electric cylinder 204 is a round head type, so as to facilitate the smooth lifting of the inclined plate 203; the end of the inclined plate 203 is also provided with an arc surface 205.

[0032] The flaw detection area 4 includes a chain conveyor belt 6 and a bracket 302 fixed on the conveyor belt 6. Two material receiving units 3 are symmetrically arranged on the bracket 302. Figure 3 As shown, the material receiving unit 3 includes a compression spring 304 fixed on a bracket 302, a support plate 303 fixed on the compression spring 304, a support block 301 fixed on the support plate 303, a push rod 307 fixed on the bracket 302, and a baffle 306 rotatably connected to the bracket 302; the bottoms of the support block 301 and the push rod 307 are fixed to the bracket 303, and the support block 301 and the push rod 307 are both slidably connected to the bracket 302, and the top of the push rod 307 is spherical; V-shaped grooves 308 are symmetrically provided on the bracket 302, and the support block 301 is located in the V-shaped groove 308, as shown in FIG. Figure 3 As described above, when there is no connecting rod 5 in the V-shaped groove 308, the compression spring 304 is in a non-compressed state, the support block 301 protrudes from the inclined surface of the V-shaped groove 308, and the baffle 306 is in a flipped-up state relative to the upper plane of the bracket 302. Figure 3 As shown, the bracket 302 is also rotatably connected to a top plate 305, and a small spring is provided at a position near the rotation point of the top plate 305, which is fixed in a corresponding mounting groove on the bracket 302. The top end of the top plate 305 is spherical to facilitate sliding with the bottom of the baffle 306. When the baffle 306 is in the flipped-up state, the top plate 305 and the baffle 306 are in a vertical state, and the gravity of the baffle 306 is greater than the sum of the gravity of the top plate 305 and the elastic force of the small spring when it is compressed. Therefore, when the compression spring 304 is compressed and the push rod 307 no longer supports the baffle 306, the baffle 306 will rotate downward and reset under the action of gravity, thereby pressing the top plate 305 into a horizontal state; and when the compression spring 304 is in the extended state, the top of the push rod 307 pushes the baffle 306 upward to flip it up, and the top plate 305 will also be pushed up by the small spring so that the top of the top plate 305 supports the bottom surface of the baffle 306.

[0033] like Figure 1As shown in the figure, the flaw detection area 4 further includes a spray head 401 fixed above the conveyor belt 6. The spray head 401 is used to spray the magnetic suspension liquid, and the spray head 401 is connected to the liquid storage tank through a water pipe. When the conveyor belt 6 is running, the magnetic suspension liquid can be sprayed onto the rod members through spraying, so that the magnetic suspension liquid evenly covers the surface of the workpiece, which can ensure that the entire surface of the workpiece can be fully detected subsequently, and avoid missed detection caused by uneven distribution of the magnetic suspension liquid. On both sides below the spray head 401, there are magnetic conduction areas. Since the magnetic particle flaw detector is a prior art, the principle is simply explained here and its specific structure will not be elaborated. The magnetic conduction areas are used to conduct magnetic flux on the connecting rod 5, and magnetic powder on the surface of the connecting rod 5 is adsorbed through magnetic force. If there are crack defects on the surface of the connecting rod 5, more magnetic powder will accumulate in the cracks. The flaw detection area 4 further includes a detection part 403, and the detection part 403 is provided with a magnetic particle flaw detection lamp. Under the irradiation of the magnetic particle flaw detection lamp, a bright line is shown at the crack on the surface of the connecting rod 5, which is convenient for the staff to identify.

[0034] As Figure 1 shown, the straightening area includes an automatic straightening machine 7. The automatic straightening machine 7 is a prior art, and its structure is simply introduced here. As Figure 4 shown, there is a feeding area in the middle of the automatic straightening machine 7, including two columns 707. Above the columns 707, there are rollers arranged in a V shape. The connecting rod 5 can be circumferentially rotated on the columns 707. A runout detection unit 708 is arranged between the two columns 707. A measuring rod is provided on the runout detection unit 708. The measuring rod will contact the outer circumference of the connecting rod 5 during detection. The rotation value of the connecting rod 5 is reflected to the automatic straightening machine 7 through the measuring rod. The connecting rod 5 is provided with a pressing head 705, and the pressing head 705 is used to apply pressure to the place with a larger degree of bending. The automatic straightening machine 7 also has a mechanical claw 706. Driving mechanisms are also provided at both ends of the column 707, including a sliding seat 701, a cylinder 702 with its tail pivotally connected to the sliding seat 701, and a motor 703 pivotally connected to the top of the sliding seat 701. The piston head of the cylinder 702 is pivotally connected to the tail end of the motor 703. A plastic sleeve 704 is provided at the piston rod head of the motor 703. The sliding seat 701 can be adjusted to a suitable position and then locked and fixed with screws, so that the piston rod head of the motor 703 can accurately reach both ends of the connecting rod 5. After the connecting rod 5 is placed between the two columns 707, then the piston rod of the cylinder 702 is pushed out so that the motor 703 swings around the top end of the sliding seat 701, and the plastic sleeve 704 presses both ends of the connecting rod 5. Then the motor 703 rotates, and the connecting rod 5 is driven to rotate by relying on the friction force of the plastic sleeve 704. The measuring rod on the runout detection unit 708 can detect the place with the largest runout of the connecting rod 5 in one week, so as to identify the high point of the bending degree of the connecting rod 5. Then the motor 703 drives the connecting rod 5 to rotate to turn the direction of the high point of the bending degree upwards, so that the pressing head 705 can press down on the high point of the bending degree, and gradually adjust and straighten the connecting rod 5.

[0035] The usage process of the present invention is as follows:

[0036] First, after the connecting rod 5 processed in the previous process is transported to the top by the chain plate elevator 1, the connecting rod 5 falls onto the inclined plate 203. At this time, there is no material on the bracket 302, and the connecting rod 5 will first fall into the left V-shaped groove 308 on the bracket 302. When the connecting rod 5 is falling, after it falls onto the arc surface 205, its moving direction will gradually change with the shape of the arc surface 205, reducing the falling speed of the rod, which helps the subsequent material receiving unit 3 to accurately catch the rod, enabling the rod to slide more smoothly into the first V-shaped groove 308 on the bracket 302. And a proximity switch is provided at the position of this bracket 302 to sense whether there is material in the V-shaped groove 308. The setting of the proximity switch also belongs to conventional technology and will not be elaborated here. When the proximity switch senses that the first V-shaped groove 308 on the bracket 302 is fed with material, Figure 2 the electric cylinder 204 in Figure 3 will adjust the telescopic rod to extend, lifting the inclined plate 203 to a certain height to facilitate the next connecting rod 5 to fall into the second V-shaped groove 308 on the bracket 302. And in order to prevent the connecting rod 5 from directly hitting the baffle 306 under the action of inertia, therefore Figure 1 when there is no material in the V-shaped groove 308, the top plate 305 and the baffle 306 are in a perpendicular state. If the connecting rod 5 falls onto the baffle 306, the force exerted on the baffle 306 by it will be supported by the top plate 305 to prevent the connecting rod 5 from directly flattening the baffle 306 and prevent it from rolling off the bracket 302. After both V-shaped grooves 308 are filled with material, the conveyor belt 6 will drive this bracket 302 into

[0037] the magnetization area in

[0038] 1. Improve the feeding efficiency and reduce the production cost. Since two V-shaped grooves 308 are provided on each bracket 302, when the connecting rod 5 falls into the V-shaped grooves 308 on the bracket 302, there will be a sequence. And the setting of the electric cylinder 204 can accurately control the rotation angle of the inclined plate 203, adjust the falling direction of the rod according to the actual production requirements, enabling the rod to slide into the two V-shaped grooves 308 in a suitable posture successively, realizing an efficient and accurate feeding process and improving the overall production efficiency.

[0039] 2. Improve the accuracy and stability of feeding. The setting of the compression spring 304 endows the pallet 303 with buffering ability. Since the baffle 306 is in the flipped-up state when the compression spring 304 is in the non-compressed state, when the connecting rod 5 quickly slides onto the bracket 302, the baffle 306 provides an additional block for the bracket 302 to block its lateral movement and prevent the rod from rolling off. Then, as the connecting rod 5 falls back into the V-shaped groove 308 again, it compresses the compression spring 304 by its own weight, and then drives the ejector rod 307 to descend, so that the baffle 306 can return to the horizontal state with the upper plane of the bracket 302, and thus will not interfere with the movement trajectory of the connecting rod 5 during the next blanking, enabling the next connecting rod 5 to smoothly fall into the second V-shaped groove 308, thereby improving the accuracy and stability of the rods falling into the V-shaped grooves 308 on each bracket 302 in sequence.

[0040] 3. Simple structure and reduced production costs. Each component that makes up the blanking unit 2 and the material receiving unit 3, such as the chain plate of the chain plate elevator 1, the fixed rod 202, the electric cylinder 204, and the bracket 302, the compression spring 304, the pallet 303, etc. in the material receiving unit 3, are mostly common standard parts or general parts that are easy to process and manufacture. These components are easily available in the market, and the procurement cost is relatively low. Moreover, due to their versatility, the cost can also be reduced when maintaining the equipment and replacing components. At the same time, due to the simple structure, the number of components is relatively small, and the connection between components is clear. During the operation of the equipment, the probability of failure is relatively low. Once a failure occurs, it is also convenient for the staff to quickly locate and repair, reducing the repair time and repair cost. In addition, the use of general components makes it more convenient to replace components and the cost is low, reducing the maintenance cost and production operation cost of the equipment.

[0041] The above are only the embodiments of the present invention. The invention is not limited to the fields involved in this embodiment case. Common knowledge such as the specific structures and characteristics known in the solutions is not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to explain the content of the claims.

Claims

1. A combined device for connecting rod flaw detection and straightening, characterized in that: It includes a loading area, a flaw detection area and a straightening area that are connected in sequence to form a continuous production line; the loading area includes a chain plate elevator and a blanking unit fixed on the chain plate elevator, and the blanking unit includes a fixed rod fixed on the chain plate elevator, an inclined plate rotatably connected to the fixed rod, and an electric cylinder fixed on the chain plate elevator; the flaw detection area includes a conveyor belt and a bracket fixed on the conveyor belt, and a receiving unit is symmetrically arranged on the bracket. The receiving unit includes a compression spring fixed on the bracket, a support plate fixed on the compression spring, a support block fixed on the support plate, a ejector rod fixed on the bracket, and a baffle rotatably connected to the bracket; the bottoms of the support block and the ejector rod are fixed to the support plate, both the support block and the ejector rod are slidably connected to the bracket, and the top of the ejector rod is spherical; V-shaped grooves are symmetrically arranged on the bracket, the support block is located in the V-shaped groove, when the compression spring is in a non-compressed state, the support block protrudes from the inclined surface of the V-shaped groove, and the baffle is in a flipped-up state relative to the upper plane of the bracket.

2. The integrated equipment for connecting rod flaw detection and straightening according to claim 1, characterized in that: A top plate is also rotatably connected to the bracket, the top end of the top plate is slidably connected to the bottom of the baffle, and when the baffle is in a flipped-up state, the top plate is perpendicular to the baffle.

3. The integrated equipment for connecting rod flaw detection and straightening according to claim 2, characterized in that: An arc surface is also provided at the end of the inclined plate.

4. The integrated equipment for connecting rod flaw detection and straightening according to claim 3, characterized in that: The flaw detection area also includes a spray head fixed above the conveyor belt, and the spray head is used for spraying magnetic suspension liquid.

5. The integrated equipment for connecting rod flaw detection and straightening according to claim 4, characterized in that: The flaw detection area also includes a detection part, and a magnetic particle flaw detection lamp is provided in the detection part.

6. The integrated equipment for connecting rod flaw detection and straightening according to claim 5, characterized in that: The straightening area includes an automatic straightening machine.

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