A conveying device and method for piston rod production line

Abstract

The present invention provides a conveying device and method for a piston rod production line, which relates to the technical field of piston rod conveying, and includes: a placing table and a first roller and a second roller rotatably arranged on the placing table; a four-bar linkage mechanism for transporting the piston rod, the four-bar linkage mechanism is rotatably connected with a supporting roller for supporting the piston rod, and the first roller is provided with a slide groove for allowing the four-bar linkage mechanism to pass; the placing table is provided with a driving mechanism for driving the four-bar linkage mechanism to rotate and a transmission mechanism for driving the first roller and the second roller to rotate; the placing table is connected with a driving screw and a first rotation source for driving the driving screw to rotate, the driving screw is threadedly connected with a first sliding frame, the first sliding frame is connected with a friction wheel and a second rotation source for driving the friction wheel to rotate, and the placing table is rotatably connected with a limiting wheel. The present invention has the effect of reducing the interference to the detection camera caused by new damage to the piston rod during transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of piston rod conveying, and in particular to a conveying device and method for a piston rod production line. Background Art

[0002] The piston rod is an important component in hydraulic and pneumatic systems, usually used to convert fluid pressure into mechanical motion. The piston rod connects the piston and the mechanical load and can reciprocate in the hydraulic cylinder or cylinder. Piston rod surface inspection is an important part of ensuring the quality and performance of the piston rod. Through a series of inspection methods, parameters such as surface defects, dimensional accuracy and surface roughness can be identified.

[0003] For example, in the Chinese patent with announcement number CN116216280B, which is titled "A conveying device for a visual inspection device for piston rod surface defects", a staff member places multiple piston rods on the upper end surface of a placement table, and controls the piston rod on the blower mechanism to move downward through a control console, so that the piston rod falls between the first roller and the second roller. The piston rod is forced to move to one side to the camera for inspection. After the camera completes the inspection of the piston rod surface, the piston rod is moved to the discharge port through a stop plate until the piston rod falls onto the slide ramp, and the inspected piston rod is output.

[0004] With respect to the above-mentioned related technologies, when the piston rod falls between the first roller and the second roller, the piston rod will collide with the first roller and the second roller respectively. At the same time, when the first roller and the second roller contact the piston rod, the stationary piston rod is driven to rotate, so that the first roller and the second roller cause friction on the surface of the piston rod, which may cause damage to the surface of the piston rod. In addition, when the weights of the two ends of the piston rod are unequal, the first roller and the second roller will first contact the heavier end of the piston rod, and then the heavier end of the piston rod will bounce up, and the first roller and the second roller will contact the lighter end of the piston rod, which will cause the left and right sides of the piston rod to bounce up alternately, increasing the probability of damage to the surface of the piston rod and having a negative impact on the detection of the surface of the piston rod. Summary of the invention

[0005] In view of this, the present invention provides a conveying device and method for a piston rod production line, aiming to solve the problem of collision between the piston rod and the first roller and the second roller, and friction between the first roller and the second roller on the surface of the piston rod causing damage to the surface of the piston rod.

[0006] To solve the above technical problems, in a first aspect, the present invention provides a conveying device for a piston rod production line, comprising a placing table and a first roller and a second roller rotatably arranged on the placing table; a four-bar linkage mechanism is arranged on the placing table for transporting the piston rod, the four-bar linkage mechanism is rotatably connected to a support roller for supporting the piston rod, the first roller is provided with a slide groove through which the four-bar linkage can pass; the placing table is provided with a driving mechanism for driving the four-bar linkage to rotate and a transmission mechanism for driving the first roller and the second roller to rotate; the placing table is connected with a driving screw and a first rotation source for driving the driving screw to rotate, the driving screw is threadedly connected to a first sliding frame, the first sliding frame is connected with a friction wheel and a second rotation source for driving the friction wheel to rotate, the friction wheel is used to adjust the position of the piston rod while driving the piston rod to rotate, and the placing table is rotatably connected with a limiting wheel.

[0007] By adopting the above technical solution, while the friction wheel adjusts the position of the piston rod relative to the first roller and the second roller, the friction wheel drives the piston rod to rotate, so that the rotating piston rod is conveyed to the first roller and the second roller, thereby reducing the distance that the piston rod rotates frictionally relative to the first roller and the second roller when the piston rod abuts against the first roller and the second roller, reducing the wear on the piston rod, and reducing the interference to the detection camera caused by new damage to the piston rod during transportation.

[0008] In addition, the support rod drives the piston rod to move to the friction wheel, so that the friction wheel first drives the piston rod to rotate, and then the support rod drives the piston rod to move between the first roller and the second roller, instead of pushing the piston rod to fall between the first roller and the second roller, thereby reducing the probability of the piston rod being damaged by collision with the first roller and the second roller. At the same time, it also reduces the probability that the piston rod bounces too far from the first roller and the second roller, and the piston rod bounces to the outside of the first roller and the second roller, thereby separating from the first roller and the second roller, which is conducive to the normal operation of the piston rod surface detection work.

[0009] Optionally, the four-bar linkage includes a first link and a second link hinged to the placement table, a support rod is hinged between the first link and the second link, a support block is fixedly connected to the top wall of the support rod, and the support block is rotatably connected to the support roller.

[0010] Optionally, the driving mechanism includes a third rotation source fixedly connected to the placing table, the driving shaft of the third rotation source is fixedly sleeved with a driving gear, the placing table is rotatably connected with a rotating roller, the rotating roller is fixedly sleeved with a transmission gear meshing with the driving gear, the first connecting rod is fixedly connected with a first connecting roller, the side walls of the rotating roller and the first connecting roller are jointly sleeved with a first conveyor belt, the second connecting rod is fixedly connected with a second connecting roller, the side walls of the first connecting roller and the second connecting roller are jointly sleeved with a second conveyor belt.

[0011] Optionally, a fan for generating airflow is fixedly connected to the side wall of the first sliding frame, and an air delivery cavity for allowing airflow to pass therethrough is provided inside the first sliding frame, and the air delivery cavity is used to deliver the airflow to the piston rod.

[0012] By adopting the above technical solution, the air flow in the air delivery chamber is transported downward to the piston rod, and the air flow blows the oil stains on the surface of the piston rod to the oil storage tank, thereby reducing the interference of the oil stains on the detection accuracy of the piston rod surface. At this time, the friction wheel drives the piston rod to rotate, so that the surface of the piston rod can contact the air flow, which improves the oil removal effect of the air flow on the piston rod.

[0013] Optionally, an oil storage tank is provided below the air delivery cavity.

[0014] Optionally, the placement table is fixedly connected with a linear driver for pushing the piston rod to disengage from the first roller and the second roller.

[0015] By adopting the above technical solution, the linear drive pushes the piston rod that has completed the detection to disengage from the first roller and the second roller for unloading.

[0016] Optionally, the transmission mechanism includes a fourth rotation source and a fifth rotation source fixedly connected to the placing table, the driving shaft fixing sleeve of the fourth rotation source is provided with a first pulley, the first pulley and the second roller are jointly provided with a third conveyor belt, the driving shaft fixing sleeve of the fifth rotation source is provided with a second pulley, the placing table is rotatably connected with a third connecting roller, the second pulley and the third connecting roller are jointly provided with a fourth conveyor belt, the third connecting roller fixing sleeve is provided with a reversing gear, and the first roller is fixedly connected with a connecting gear that can mesh with the reversing gear.

[0017] Optionally, the placing table is slidably connected to a second sliding frame, the placing table is fixedly connected to a sixth rotation source, the driving shaft of the sixth rotation source is fixedly connected to a transmission screw, the transmission screw is threadedly connected to the second sliding frame, the second sliding frame is connected to a conveyor belt for conveying the piston rod to the support rod, and the conveyor belt is fixedly connected to a plurality of spacer plates along the length direction.

[0018] By adopting the above technical solution, a piston rod is placed between two adjacent partition plates. The driving mechanism drives the support rod to move to the bottom of the conveyor belt through the first connecting rod, and the driving mechanism drives the support rod to move upward through the first connecting rod, so that the support rod takes out a piston rod, and the sixth rotation source reverses and drives the second sliding frame away from the support rod through the transmission screw, thereby realizing the loading of the piston rods one by one.

[0019] Optionally, the top wall of the partition plate is vertically fixedly connected to a limiting plate.

[0020] By adopting the above technical solution, when the piston rod is transported to one end of the conveyor belt close to the first roller, the limit rod is used to prevent the first roller from falling off the surface of the conveyor belt, thereby improving the reliability of the support rod in removing the piston rods one by one from the conveyor belt.

[0021] In a second aspect, the present invention provides a method for conveying a piston rod, which is applied to a conveying device for a piston rod production line described in the first aspect. The conveying method is:

[0022] S1, placing the piston rod on the conveyor belt, and starting the conveyor belt to convey the piston rod to the support rod;

[0023] S2, the driving mechanism drives the piston rod to move close to the first sliding frame through the first connecting rod and the supporting rod, the first rotating source drives the first sliding frame and the friction wheel to move close to the piston rod, and the second rotating source drives the piston rod to rotate through the friction wheel;

[0024] S3, the driving mechanism drives the piston rod to move to the first roller and the second roller, the support rod retains the piston rod on the first roller and the second roller, the transmission mechanism drives the first roller and the second roller to rotate, the piston rod rotates with the first roller and the second roller, and the detection camera detects the surface of the piston rod;

[0025] S4, the linear driver pushes the piston rod that has completed the detection, so that the piston rod is separated from the first roller and the second roller.

[0026] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects:

[0027] 1. The friction wheel adjusts the position of the piston rod relative to the first roller and the second roller and reduces the offset between the piston rod and the detection camera. At the same time, the friction wheel drives the piston rod to rotate, so that the rotating piston rod is conveyed to the first roller and the second roller, which reduces the friction rotation distance of the piston rod relative to the first roller and the second roller when the piston rod abuts against the first roller and the second roller, reduces the wear on the piston rod, and reduces the interference to the detection camera caused by new damage to the piston rod during transportation.

[0028] 2. The support rod drives the piston rod to move between the first roller and the second roller, instead of pushing the piston rod to fall between the first roller and the second roller, which reduces the probability of the piston rod being damaged by collision with the first roller and the second roller. At the same time, it also reduces the probability that the piston rod bounces too far from the first roller and the second roller, bounces to the outside of the first roller and the second roller, and then separates from the first roller and the second roller, which is conducive to the normal operation of the piston rod surface detection work.

[0029] 3. When the weights at both ends of the piston rod are unequal, the support rod drives both ends of the piston rod to contact the first roller and the second roller at the same time, which reduces the phenomenon that the left and right sides of the piston rod bounce alternately when the piston rod falls to the first roller and the second roller, and further reduces the probability of damage to the surface of the piston rod.

[0030] 4. The fan generates airflow, which is transported to the air delivery chamber. The airflow in the air delivery chamber is transported downward to the piston rod. The airflow blows the oil on the surface of the piston rod to the oil storage tank, thereby reducing the interference of the oil on the detection accuracy of the piston rod surface. At this time, the friction wheel drives the piston rod to rotate, so that the surface of the piston rod can contact the airflow, which improves the oil removal effect of the airflow on the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0032] Figure 2 It is a structural schematic diagram of a four-bar linkage mechanism according to an embodiment of the present invention;

[0033] Figure 3 For the embodiment of the present invention Figure 2 A schematic diagram of the structure from another perspective;

[0034] Figure 4 This is a schematic structural diagram of a support roller according to an embodiment of the present invention;

[0035] Figure 5 It is a schematic structural diagram of a driving screw rod and a first sliding frame according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic structural diagram of a friction wheel according to an embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the air delivery cavity according to an embodiment of the present invention;

[0038] Figure 8 It is a structural schematic diagram of a transmission mechanism according to an embodiment of the present invention;

[0039] Fig. 9 It is a schematic diagram of the structure of a conveyor belt according to an embodiment of the present invention;

[0040] Fig.10 It is a schematic structural diagram of a limiting plate according to an embodiment of the present invention.

[0041] Description of the accompanying drawings: 1. Placement table; 11. First roller; 111. Slide groove; 12. Second roller; 13. Limiting wheel; 14. Oil storage tank; 15. Second sliding frame; 151. Sixth rotation source; 152. Transmission screw; 2. Four-bar linkage; 21. First connecting rod; 22. Second connecting rod; 23. Support rod; 231. Support block; 232. Support roller; 3. Piston rod; 4. Driving mechanism; 41. Third rotation source; 42. Driving gear; 43. Rotating roller; 44. Transmission gear; 45. First connecting roller; 46. First conveyor belt; 47. Second connecting roller; 48. Second conveyor belt; 5. Transmission mechanism; 51 , fourth rotation source; 52, fifth rotation source; 53, first pulley; 54, third conveyor belt; 55, second pulley; 56, third connecting roller; 57, fourth conveyor belt; 58, reversing gear; 59, connecting gear; 6, first rotation source; 61, driving screw; 62, first sliding frame; 621, second rotation source; 622, friction wheel; 623, fan; 624, air delivery chamber; 625, sixth pulley; 626, seventh pulley; 627, sixth conveyor belt; 63, third pulley; 64, fourth pulley; 65, fifth conveyor belt; 7, linear drive; 8, conveyor belt; 81, partition plate; 811, limit plate. DETAILED DESCRIPTION

[0042] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 10 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0043] In a first aspect, this embodiment provides a conveying device for a piston rod production line, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4A conveying device for a piston rod production line includes a placing table 1 and a first roller 11 and a second roller 12 rotatably arranged on the placing table 1. The placing table 1 is provided with a four-bar linkage 2 for transporting the piston rod 3 to the first roller 11 and the second roller 12. The four-bar linkage 2 includes a first link 21 and a second link 22 hinged to the placing table 1, and a support rod 23 is hinged between the first link 21 and the second link 22. There are two first links 21, two second links 22 and two support rods 23, and the second link 22 is arranged close to the first roller 11. The top wall of the support rod 23 is fixedly connected with a support block 231, and the support block 231 is rotatably connected with a support roller 232 abutting against the piston rod 3. The first roller 11 is provided with a slide groove 111 through which the four-bar linkage 2 can rotate. The placing table 1 is provided with a driving mechanism 4 for driving the first link 21 to rotate, and the placing table 1 is also provided with a transmission mechanism 5 for driving the first roller 11 and the second roller 12 to rotate.

[0044] Reference Figure 5 and Figure 6 The placing table 1 is fixedly connected with a first rotating source 6, the driving shaft of the first rotating source 6 is fixedly connected with a third pulley 63, the placing table 1 is rotatably connected with a fourth pulley 64, and the third pulley 63 and the fourth pulley 64 are jointly sleeved with a fifth conveyor belt 65. The fourth pulley 64 is fixedly connected with a driving screw 61, and the fourth pulley 64 is rotatably connected with the placing table 1. The placing table 1 is slidably connected with a first sliding frame 62 that can be threadedly connected with the driving screw 61, the first sliding frame 62 is fixedly connected with a second rotating source 621, the driving shaft of the second rotating source 621 is fixedly sleeved with a sixth pulley 625, the first sliding frame 62 is rotatably connected with a seventh pulley 626, and the sixth pulley 625 and the seventh pulley 626 are jointly sleeved with a sixth conveyor belt 627. The seventh pulley 626 is fixedly connected with a friction wheel 622 that can abut against the piston rod 3, and the friction wheel 622 is rotatably connected with the first sliding frame 62. The placing platform 1 is rotatably connected with a limiting wheel 13 that can abut against one end of the piston rod 3 away from the friction wheel 622. The placing platform 1 is fixedly connected with a linear drive 7 for pushing the piston rod 3 away from the first roller 11 and the second roller 12.

[0045] The piston rod 3 is placed on the support roller 232, and the driving mechanism 4 first drives the first connecting rod 21 to rotate clockwise (refer to Figure 2), so that the support rod 23 moves downward, and the support block 231, the support roller 232 and the piston rod 3 move downward synchronously with the support rod 23. The first rotation source 6 starts to drive the driving screw 61 to rotate, thereby driving the first sliding frame 62 to move close to the piston rod 3, and the friction wheel 622 moves synchronously with the first sliding frame 62 to abut the side wall of one end of the piston rod 3, and pushes the piston rod 3 axially, so that the piston rod 3 is away from the side wall of one end of the friction wheel 622 and abuts against the limiting wheel 13, thereby adjusting the position of the piston rod 3 relative to the support rod 23 along the axial direction of the piston rod 3, that is, adjusting the position of the piston rod 3 relative to the first roller 11 and the second roller 12, and then adjusting the position of the piston rod 3 and the detection camera, reducing the offset between the piston rod 3 and the detection camera. The second rotation source 621 drives the friction wheel 622 to rotate, and the friction wheel 622 uses the friction between the side wall of the piston rod 3 to drive the piston rod 3 to rotate.

[0046] Then the driving mechanism 4 drives the first connecting rod 21 to rotate counterclockwise (refer to Figure 2 ), the first connecting rod 21 drives the support rod 23 to move upward, the first connecting rod 21 continues to rotate to make the support rod 23 move close to the first roller 11 and the second roller 12, and the support rod 23 drives the piston rod 3 to move between the first roller 11 and the second roller 12, at this time the piston rod 3 keeps rotating. The support rod 23 continues to move through the slide groove 111, the piston rod 3 is stranded between the first roller 11 and the second roller 12, the transmission mechanism 5 drives the first roller 11 and the second roller 12 to rotate, and the first roller 11 and the second roller 12 rotate in the same direction, the first roller 11 and the second roller 12 abut the piston rod 3, thereby the piston rod 3 rotates with the first roller 11 and the second roller 12, so that the detection camera detects the surface of the piston rod 3. The linear drive 7 pushes the piston rod 3 that has been detected to disengage from the first roller 11 and the second roller 12 for unloading.

[0047] While adjusting the position of the piston rod 3 relative to the first roller 11 and the second roller 12, the friction wheel 622 drives the piston rod 3 to rotate, so that the rotating piston rod 3 is conveyed to the first roller 11 and the second roller 12, thereby reducing the distance that the piston rod 3 frictionally rotates relative to the first roller 11 and the second roller 12 when the piston rod 3 abuts against the first roller 11 and the second roller 12, thereby reducing the wear on the piston rod 3 and reducing the interference to the detection camera caused by new damage to the piston rod 3 during transportation.

[0048] In addition, the support rod 23 drives the piston rod 3 to move between the first roller 11 and the second roller 12, rather than pushing the piston rod 3 to fall between the first roller 11 and the second roller 12, thereby reducing the probability of the piston rod 3 being damaged by collision with the first roller 11 and the second roller 12. At the same time, the probability that the piston rod 3 bounces too far from the first roller 11 and the second roller 12, and the piston rod 3 bounces to the outside of the first roller 11 and the second roller 12, thereby separating from the first roller 11 and the second roller 12 is reduced, which is conducive to the normal operation of the surface detection work of the piston rod 3.

[0049] When the weights of the two ends of the piston rod 3 are unequal, the support rod 23 drives the two ends of the piston rod 3 to contact the first roller 11 and the second roller 12 at the same time, thereby reducing the phenomenon that the left and right sides of the piston rod 3 bounce up alternately when the piston rod 3 falls to the first roller 11 and the second roller 12, and further reducing the probability of damage to the surface of the piston rod 3.

[0050] Reference Figure 2 and Figure 3 The driving mechanism 4 includes a third rotating source 41 fixedly connected to the placing table 1, a driving shaft of the third rotating source 41 is fixedly sleeved with a driving gear 42, a rotating roller 43 is rotatably connected to the placing table 1, and a transmission gear 44 meshing with the driving gear 42 is fixedly sleeved on the rotating roller 43. The first connecting rod 21 is fixedly connected with a first connecting roller 45, and the side walls of the rotating roller 43 and the first connecting roller 45 are jointly sleeved with a first conveyor belt 46. The second connecting rod 22 is fixedly connected with a second connecting roller 47, and the side walls of the first connecting roller 45 and the second connecting roller 47 are jointly sleeved with a second conveyor belt 48. The third rotating source 41 drives the first connecting rod 21 to rotate around the central axis of the rotating roller 43 through the driving gear 42, the transmission gear 44, the rotating roller 43, the first conveyor belt 46 and the first connecting roller 45 in sequence. The second conveyor belt 48 enables the first connecting rod 21 and the second connecting rod 22 to rotate synchronously, so that the support rod 23 always maintains a horizontal state when moving.

[0051] Reference Figure 6 and Figure 7 The side wall of the first sliding frame 62 is fixedly connected with a fan 623 for generating wind flow, and the first sliding frame 62 is provided with a wind delivery cavity 624 for passing wind flow, and the wind delivery cavity 624 is used to deliver wind flow to the piston rod 3. An oil storage tank 14 is arranged below the wind delivery cavity 624.

[0052] The fan 623 generates wind flow, which is delivered to the air delivery chamber 624. The wind flow in the air delivery chamber 624 is delivered downward to the piston rod 3. The wind flow blows the oil stains on the surface of the piston rod 3 to the oil storage tank 14, thereby reducing the interference of the oil stains on the detection accuracy of the surface of the piston rod 3. At this time, the friction wheel 622 drives the piston rod 3 to rotate, so that the surface of the piston rod 3 can all contact the wind flow, thereby improving the degreasing effect of the wind flow on the piston rod 3.

[0053] Reference Figure 8 The transmission mechanism 5 includes a fourth rotation source 51 and a fifth rotation source 52 fixedly connected to the placement table 1. The driving shaft of the fourth rotation source 51 is fixedly sleeved with a first pulley 53. The first pulley 53 and the second roller 12 are jointly sleeved with a third conveyor belt 54. The fourth rotation source 51 drives the second roller 12 to rotate through the first pulley 53 and the third conveyor belt 54.

[0054] Reference Figure 8 The driving shaft of the fifth rotation source 52 is fixedly sleeved with a second pulley 55, the placing table 1 is rotatably connected with a third connecting roller 56, the second pulley 55 and the third connecting roller 56 are jointly sleeved with a fourth conveyor belt 57, the third connecting roller 56 is fixedly sleeved with a reversing gear 58, and the first roller 11 is fixedly connected with a connecting gear 59 that can mesh with the reversing gear 58. The fifth rotation source 52 drives the connecting gear 59 to rotate through the second pulley 55, the fourth conveyor belt 57, the third connecting roller 56 and the reversing gear 58, and the first roller 11 rotates synchronously with the connecting gear 59, and the first roller 11 and the second roller 12 rotate in the same direction. Multiple reversing gears 58 and connecting gears 59 are arranged along the axial direction of the first roller 11, and the first roller 11 is divided into multiple sections by the slide groove 111, and the connecting gear 59 drives the multiple sections of the first roller 11 to rotate synchronously.

[0055] Reference Fig. 9 and Fig.10 The placing table 1 is slidably connected to the second sliding frame 15, the placing table 1 is fixedly connected to the sixth rotation source 151, the driving shaft of the sixth rotation source 151 is fixedly connected to the transmission screw 152, the transmission screw 152 is threadedly connected to the second sliding frame 15, the second sliding frame 15 is connected to a conveyor belt 8 for conveying the piston rod 3 to the support rod 23, and the conveyor belt 8 is fixedly connected to a plurality of spacer plates 81 along the length direction.

[0056] The sixth rotation source 151 places the piston rod 3 on the conveyor belt 8 for loading, and the conveyor belt 8 moves the piston rod 3 to the support rod 23, and a piston rod 3 is placed between two adjacent partition plates 81. The driving mechanism 4 drives the support rod 23 to move to the bottom of the conveyor belt 8 through the first connecting rod 21, and the sixth rotation source 151 starts to drive the transmission screw 152 to rotate forward, and the transmission screw 152 drives the second sliding frame 15 to move close to the support rod 23, so that the piston rod 3 at one end of the conveyor belt 8 close to the first roller 11 is located directly above the support block 231, and the driving mechanism 4 drives the support rod 23 to move upward through the first connecting rod 21, so that the support rod 23 takes out a piston rod 3, and the sixth rotation source 151 reverses and drives the second sliding frame 15 away from the support rod 23 through the transmission screw 152, thereby realizing the loading of the piston rods 3 one by one.

[0057] The top wall of the spacer plate 81 is vertically fixedly connected to the limit plate 811. When the piston rod 3 is transported to the end of the conveyor belt 8 close to the first roller 11, the limit plate 811 is used to prevent the first roller 11 from falling off the surface of the conveyor belt 8, thereby improving the reliability of the support rod 23 being able to take out the piston rods 3 one by one from the conveyor belt 8.

[0058] The implementation principle of a conveying device for a piston rod production line according to an embodiment of the present invention is as follows: the piston rod 3 is placed on the conveyor belt 8, and the conveyor belt 8 is started to convey the piston rod 3 to the support rod 23. The driving mechanism 4 drives the piston rod 3 to move close to the first sliding frame 62 through the first connecting rod 21 and the support rod 23, the first rotating source 6 drives the first sliding frame 62 and the friction wheel 622 to move close to the piston rod 3, and the second rotating source 621 drives the piston rod 3 to rotate through the friction wheel 622. The driving mechanism 4 drives the piston rod 3 to move to the first roller 11 and the second roller 12, the support rod 23 retains the piston rod 3 on the first roller 11 and the second roller 12, the transmission mechanism 5 drives the first roller 11 and the second roller 12 to rotate, the piston rod 3 rotates with the first roller 11 and the second roller 12, and the detection camera detects the surface of the piston rod 3. The linear drive 7 pushes the piston rod 3 after the detection, so that the piston rod 3 is separated from the first roller 11 and the second roller 12.

[0059] In a second aspect, an embodiment of the present invention provides a method for conveying a piston rod, which is applied to a conveying device for a piston rod production line in the first aspect. The conveying method is:

[0060] S1, placing the piston rod 3 on the conveyor belt 8, and starting the conveyor belt 8 to convey the piston rod 3 to the support rod 23;

[0061] S2, the driving mechanism 4 drives the piston rod 3 to move close to the first sliding frame 62 through the first connecting rod 21 and the supporting rod 23, the first rotating source 6 drives the first sliding frame 62 and the friction wheel 622 to move close to the piston rod 3, and the second rotating source 621 drives the piston rod 3 to rotate through the friction wheel 622;

[0062] S3, the driving mechanism 4 drives the piston rod 3 to move to the first roller 11 and the second roller 12, the support rod 23 retains the piston rod 3 on the first roller 11 and the second roller 12, the transmission mechanism 5 drives the first roller 11 and the second roller 12 to rotate, the piston rod 3 rotates with the first roller 11 and the second roller 12, and the detection camera detects the surface of the piston rod 3;

[0063] S4, the linear drive 7 pushes the piston rod 3 after the detection, so that the piston rod 3 is separated from the first roller 11 and the second roller 12.

[0064] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A conveying device for a piston rod production line, comprising a placing table and a first roller and a second roller rotatably arranged on the placing table, characterized in that: Also includes: A four-bar linkage is arranged on the placement table and is used to transport the piston rod. The four-bar linkage is rotatably connected to a support roller for supporting the piston rod, and the first roller is provided with a slide groove through which the four-bar linkage can pass; it includes a first link and a second link hinged to the placement table, a support rod is hinged between the first link and the second link, a support block is fixedly connected to the top wall of the support rod, and the support block is rotatably connected to the support roller; The placing table is provided with a driving mechanism for driving the four-bar linkage to rotate and a transmission mechanism for driving the first roller and the second roller to rotate; the driving mechanism includes a third rotating source fixedly connected to the placing table, a driving shaft of the third rotating source is fixedly sleeved with a driving gear, the placing table is rotatably connected with a rotating roller, the rotating roller is fixedly sleeved with a transmission gear meshing with the driving gear, the first connecting rod is fixedly connected with a first connecting roller, the side walls of the rotating roller and the first connecting roller are jointly sleeved with a first conveyor belt, the second connecting rod is fixedly connected with a second connecting roller, and the side walls of the first connecting roller and the second connecting roller are jointly sleeved with a second conveyor belt; The placement table is connected with a driving screw and a first rotation source for driving the driving screw to rotate, the driving screw is threadedly connected with a first sliding frame, the first sliding frame is connected with a friction wheel and a second rotation source for driving the friction wheel to rotate, the friction wheel is used to adjust the position of the piston rod while driving the piston rod to rotate, and the placement table is rotatably connected with a limit wheel; The transmission mechanism includes a fourth rotation source and a fifth rotation source fixedly connected to the placing table, the driving shaft fixing sleeve of the fourth rotation source is provided with a first pulley, the first pulley and the second roller are jointly provided with a third conveyor belt, the driving shaft fixing sleeve of the fifth rotation source is provided with a second pulley, the placing table is rotatably connected with a third connecting roller, the second pulley and the third connecting roller are jointly provided with the fourth conveyor belt, the third connecting roller fixing sleeve is provided with a reversing gear, and the first roller is fixedly connected with a connecting gear that can mesh with the reversing gear.

2. A conveying device for a piston rod production line according to claim 1, characterized in that: A fan for generating wind flow is fixedly connected to the side wall of the first sliding frame, and an air delivery cavity for allowing wind flow to pass therethrough is provided inside the first sliding frame, and the air delivery cavity is used to deliver the wind flow to the piston rod.

3. A conveying device for a piston rod production line according to claim 2, characterized in that: An oil storage tank is arranged below the air delivery cavity.

4. A conveying device for a piston rod production line according to claim 1, characterized in that: The placement platform is fixedly connected with a linear driver for pushing the piston rod to separate from the first roller and the second roller.

5. A conveying device for a piston rod production line according to claim 4, characterized in that: The placing table is slidably connected to a second sliding frame, the placing table is fixedly connected to a sixth rotation source, the driving shaft of the sixth rotation source is fixedly connected to a transmission screw, the transmission screw is threadedly connected to the second sliding frame, the second sliding frame is connected to a conveyor belt for conveying the piston rod to the support rod, and the conveyor belt is fixedly connected to a plurality of spacer plates along the length direction.

6. A conveying device for a piston rod production line according to claim 5, characterized in that: The top wall of the partition plate is vertically fixedly connected to the limiting plate.

7. A method for conveying a piston rod, applied to a conveying device for a piston rod production line according to claim 6, characterized in that: include: S1, placing the piston rod on the conveyor belt, and starting the conveyor belt to convey the piston rod to the support rod; S2, the driving mechanism drives the piston rod to move close to the first sliding frame through the first connecting rod and the supporting rod, the first rotating source drives the first sliding frame and the friction wheel to move close to the piston rod, and the second rotating source drives the piston rod to rotate through the friction wheel; S3, the driving mechanism drives the piston rod to move to the first roller and the second roller, the support rod retains the piston rod on the first roller and the second roller, the transmission mechanism drives the first roller and the second roller to rotate, the piston rod rotates with the first roller and the second roller, and the detection camera detects the surface of the piston rod; S4, the linear driver pushes the piston rod that has completed the detection, so that the piston rod is separated from the first roller and the second roller.

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