A kind of assembly line material turning device and assembly line material turning method

Abstract

The present invention discloses a pipeline material turning device, in which the material is transported to the processing equipment through a conveyor belt, the material is a tubular part, the conveyor belt includes a first conveyor belt and a second conveyor belt, the turning device is arranged between the first conveyor belt and the second conveyor belt, the turning device includes a turning mechanism, the turning mechanism includes a turntable, the turntable is provided with a perforation for the material to pass through, the perforation and the material are clearance-matched, the turning device also includes a first correction mechanism, the first correction mechanism corrects the material before the material enters the perforation, the material enters the perforation after being corrected, the turntable rotates circumferentially to turn over the material in the perforation, and the material is always in contact with the first conveyor belt when turning over. The present invention also discloses a pipeline material turning method based on the above-mentioned material turning device. The advantage of the present invention is that it can effectively improve the degree of automation of machining and improve production efficiency at the same time.

Description

[Technical field]

[0001] The invention relates to assembly line material turning equipment, belonging to the field of automated processing tooling. [Background technology]

[0002] For the mechanical field, machining is very common, and with the increase in labor costs, companies are paying more and more attention to automated machining. Take grinding machines as an example. Usually, a material or workpiece needs to be machined on several surfaces. Take a square tube as an example. It includes 4 planes. Sometimes at least 2 surfaces need to be ground, or even all 4 surfaces need to be ground. In traditional machining processes, after a plane is ground, it is manually flipped over, but this model can no longer meet the current automated production requirements. [Summary of the invention]

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an assembly line material turning device, which can effectively improve the degree of automation of machining and improve production efficiency.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A production line material turning device, in which material is transported to processing equipment through a conveyor belt, the material is a tubular part, the conveyor belt includes a first conveyor belt and a second conveyor belt, the turning device is arranged between the first conveyor belt and the second conveyor belt, the turning device includes a turning mechanism, the turning mechanism includes a turntable, the turntable is provided with a through hole for the material to pass through, and there is a clearance fit between the through hole and the material, the turning device also includes a first correction mechanism, the first correction mechanism corrects the material before the material enters the through hole, the material enters the through hole after being corrected, the turntable rotates circumferentially to turn over the material in the through hole, and the material is always in contact with the first conveyor belt when turning over.

[0006] The beneficial effects of the present invention are as follows:

[0007] 1. In the present invention, the turning device includes a turning mechanism and a first correcting mechanism. When the material enters the turning mechanism from the first conveyor belt, the first correcting mechanism first corrects the material so that the material can normally enter the perforations of the turntable. If the correction is not performed, the material may shake or deflect when being transmitted on the first conveyor belt, resulting in the material not being able to normally enter the perforations. When the material enters the perforations, the turntable rotates circumferentially, thereby causing the material to also rotate circumferentially, thereby realizing turning. In this way, when the material is transported from the first conveyor belt to the second conveyor belt, the switching of the processing surface is naturally formed, and the whole process has a high degree of automation, reducing labor costs;

[0008] 2. The present invention realizes the function of transferring while flipping. In the present invention, the material is in the perforation and is in clearance fit with the perforation. Therefore, there is still space for the material to move freely in the perforation. When the material is actually flipped, the material will fall freely in the perforation due to its own weight, so that the material will not separate from the first conveyor belt and will always stick to the first conveyor belt. Therefore, the first conveyor belt will always give friction to the material to transfer it forward, which is equivalent to transporting the material forward while flipping it. This can greatly improve the overall production efficiency.

[0009] 3. When materials need to be processed continuously through multiple steps, the present invention can be used to form a systematic assembly line process, which can save multiple conveyor belts, because the second conveyor belt of the previous process can just be used as the first conveyor belt of the next process. Such a systematic assembly line process has a great cost advantage.

[0010] Preferably, the first correcting mechanism is connected to a first sensor for sensing materials, and the first sensor is used to control the opening of the first correcting mechanism.

[0011] Preferably, the turning device further comprises a second correction mechanism, and after the material passes through the perforation, the second correction mechanism performs secondary correction on the material.

[0012] Preferably, the flipping device is further provided with a second sensor on one side of the second conveyor belt, and when the front end of the material passes through the second sensor, the second sensor controls the flipping device to start flipping.

[0013] Preferably, when the rear end of the material passes through the second sensor, the second sensor controls the second correction mechanism to start the correction operation.

[0014] Preferably, the turntable is movably mounted with an adjustment plate at the perforation for adjusting the size of the perforation.

[0015] Preferably, the first conveyor belt and the second conveyor belt are located at the same height, the material is a rectangular square tube, and the center of the perforation is eccentrically arranged in the transverse direction relative to the center of the square tube.

[0016] Preferably, the flipping device is also connected to a lifting mechanism, and the lifting mechanism is used to lift or lower the flipping device to adjust the height difference between the turntable and the conveyor belt.

[0017] Preferably, the flipping mechanism further comprises a driving motor, the driving motor is connected to a driving gear, the circumferential outer ring of the turntable is provided with a tooth surface, and the driving gear is meshed with the tooth surface.

[0018] The present invention also discloses a production line material turning method, which uses a material turning device, which is arranged between a first conveyor belt and a second conveyor belt. The turning device includes a turning mechanism, a first correction mechanism and a first sensor located on one side of the first conveyor belt, and a second correction mechanism and a second sensor located on one side of the second conveyor belt. The turning mechanism includes a turntable, which is provided with a perforation for the material to pass through, and there is a clearance fit between the perforation and the material. The turning method is as follows:

[0019] S1, placing the material on the first conveyor belt, and moving the material from the first conveyor belt to the flipping device;

[0020] S2, the first sensor on the flipping device senses the material and controls the first correcting mechanism to start to clamp the material. After the clamping operation is completed, the first correcting mechanism is closed and the material continues to be conveyed;

[0021] S3, the material enters the perforation of the flipping mechanism under the correction of the first correction mechanism. When the front end of the material passes through the perforation and passes through the second sensor, the second sensor controls the flipping mechanism to perform a flipping operation;

[0022] S4. During the turning process of the material, the rear end of the material does not separate from the first conveyor belt, and the material turns over while being conveyed, until the rear end of the material completely passes through the perforation;

[0023] S5. When the rear end of the material passes through the second sensor, the second sensor triggers the second correcting mechanism to perform a correcting operation to clamp the material. After the clamping is completed, the second correcting mechanism is closed and the material continues to be transported.

[0024] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0025] The present invention will be further described below in conjunction with the accompanying drawings:

[0026] Figure 1 It is an overall schematic diagram of the first embodiment of the present invention;

[0027] Figure 2 The structure of the flip device of the embodiment of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 3 The structure of the flip device of the embodiment of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 4 It is a schematic diagram of the eccentricity between the perforation and the material in the first embodiment of the present invention. [Specific implementation method]

[0030] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0031] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as a limitation of the invention.

[0032] Embodiment 1

[0033] like Figures 1 to 4 As shown, this embodiment shows an assembly line material turning device, the material 10 is transported to the processing equipment through a conveyor belt, in this embodiment the processing equipment is preferably a water mill, the material 10 is a tubular part, the tubular part in this embodiment is a square tube, the four sides of the square tube in this embodiment need to be ground by the water mill to meet the surface accuracy and smoothness requirements, in the traditional grinding process, after grinding one side, it needs to be manually turned over and positioned to achieve the grinding of the other side, which is not only time-consuming and labor-intensive.

[0034] For the conveyor belt, one end of the conveyor belt is the previous process, and the other end of the conveyor belt is the next process to be processed. In this embodiment, the conveyor belt includes a first conveyor belt 11 and a second conveyor belt 12. The flipping device is arranged between the first conveyor belt 11 and the second conveyor belt 12. The flipping device includes a flipping mechanism 2. The flipping mechanism 2 includes a turntable 21. The turntable 21 is provided with a perforation 211 for the material 10 to pass through. There is a clearance fit between the perforation 211 and the material 10. The flipping device also includes a first correction mechanism 31. The first correction mechanism 31 corrects the material 10 before the material 10 enters the perforation 211. After the material 10 is corrected, it enters the perforation 211. The turntable 21 rotates circumferentially to flip the material 10 in the perforation 211. The material 10 is always in contact with the first conveyor belt 11 when flipping. The material 10 in this embodiment is preferably a square tube, and the flipping angle is preferably 90°.

[0035] In this embodiment, since the flipping device includes a flipping mechanism 2 and a first correcting mechanism 31, when the material 10 enters the flipping mechanism 2 from the first conveyor belt 11, the first correcting mechanism 31 first corrects the material 10, so that the material 10 can normally enter the perforation 211 of the turntable 21. If no correction is performed, the material 10 may shake or deflect when being transmitted on the first conveyor belt 11, resulting in the material 10 not being able to normally enter the perforation 211. After the material 10 enters the perforation 211, the turntable 21 rotates circumferentially, thereby causing the material 10 to also rotate circumferentially, thereby achieving flipping. In this way, when the material 10 is transported from the first conveyor belt 11 to the second conveyor belt 12, the switching of the processing surface is naturally formed. The entire process has a high degree of automation, reducing labor costs.

[0036] In addition, the present embodiment also realizes the function of transferring while flipping. Since in the present embodiment, the material 10 is in the perforation 211 and is in clearance fit with the perforation 211, the material 10 still has space to move freely in the perforation 211. When the material 10 is actually flipped, the material 10 will fall freely in the perforation 211 due to its own weight, so that the material 10 will not separate from the first conveyor belt 11 and will always stick to the first conveyor belt 11. Therefore, the first conveyor belt 11 will always give friction to the material 10 to transfer it forward, which is equivalent to the material 10 being transported forward while flipping, which can greatly improve the overall production efficiency.

[0037] Moreover, when the material 10 needs to be processed continuously through multiple processes, this embodiment can be used to form a systematic assembly line process, which can save multiple conveyor belts, because the second conveyor belt 12 of the previous process can just be used as the first conveyor belt 11 of the next process. Such a systematic assembly line process has a great cost advantage, and all equipment can run at the same time, which is very efficient. For example, when the square tube of this embodiment needs to be processed on 4 sides, 4 water mills can be combined with 3 turning devices to run at the same time, and transmission and processing can be achieved at the same time.

[0038] In order to enable the first correcting mechanism 31 to be opened or closed more accurately, the first correcting mechanism 31 is connected to a first sensor 41. The first sensor 41 senses whether the material 10 is close to the first correcting mechanism 31 and controls the first correcting mechanism 31 to start or close the correcting operation.

[0039] In the present embodiment, the first sensor 41 is preferably an infrared sensor. When the front end of the material 10 enters the sensing area of ​​the infrared sensor, the infrared sensor controls the first correcting mechanism 31 to work. In the present embodiment, the first correcting mechanism 31 includes two clamping blocks and a driving cylinder for driving the two clamping blocks. When the first correcting mechanism 31 is working, the two clamping blocks clamp the square tube, thereby positioning the square tube so that the square tube can smoothly enter the perforation 211 of the flipping mechanism 2. After the clamping operation is completed, the driving cylinder in the first correcting mechanism 31 will be closed, so that the first conveyor belt 11 can continue to carry the material 10 forward.

[0040] In order to accurately control the flipping operation of the flipping mechanism 2, the flipping device is further provided with a second sensor 42 on one side of the second conveyor belt 12. When the front end of the material 10 passes through the second sensor 42, the second sensor 42 controls the flipping mechanism 2 to start flipping. Because when the front end of the material 10 passes through the second sensor 42, it indicates that the material 10 has at least partially passed through the perforation 211, and the flipping operation can be performed at this time. The second sensor 42 is also preferably an infrared sensor.

[0041] In addition, the flipping device also includes a second correction mechanism 32. After the material 10 passes through the perforation 211, the second correction mechanism 32 performs secondary correction on the material 10. The structure of the second correction mechanism 32 is basically the same as that of the first correction mechanism 31, and also includes two clamping blocks and a driving cylinder for driving the two clamping blocks. The main purpose of setting the second correction mechanism 32 is to enter the second conveyor belt 12 from the flipping mechanism 2. There may be deviations, so the second correction mechanism 32 can be used to correct its position for the correction and docking of the next step.

[0042] Similarly, in order to enable the second correcting mechanism 32 to be started more accurately, the second correcting mechanism 32 is connected to the second sensor 42. When the rear end of the material 10 passes through the second sensor 42, the second sensor 42 controls the second correcting mechanism 32 to start the correcting operation. When the rear end of the material 10 passes through the second sensor 42, it indicates that the material 10 has completely passed through the perforation 211, so the material 10 can be corrected at this time.

[0043] In addition, in order to make the application range of the turntable 21 wider, the turntable 21 is movably installed with an adjustment plate 22 for adjusting the size of the perforation 211 at the perforation 211. In this embodiment, there are two adjustment plates 22, which are arranged on the left and right sides of the perforation 211, and mainly adjust the lateral spacing of the perforations 211. Because the specifications of the materials 10 are different, the sizes of the corresponding perforations 211 need to be adaptively modified, and the provision of the adjustment plates 22 solves this problem well.

[0044] In addition, it should be noted that, due to the gap fit relationship between the material 10 and the perforation 211 in this embodiment, the adjustment plate 22 can also be used as a component to adjust the gap. The gap between the material 10 and the perforation 211 usually needs to be within a reasonable range. The gap cannot be too large, otherwise it will easily cause the material 10 to idle in the perforation 211. For example, if the material 10 is a square tube, the gap cannot be greater than the diagonal length of the square tube. Of course, the gap cannot be too small, otherwise it will cause the square tube to be unable to fall freely and fit onto the first conveyor belt 11. Usually, the minimum gap can be controlled to be more than 2 cm. Of course, this gap is adaptively changed according to the shape and size of different materials 10.

[0045] In order to facilitate seamless connection between different working procedures, in the present embodiment, the height of the first conveyor belt 11 and the height of the second conveyor belt 12 are preferably kept consistent. However, for the material 10, there may be a height difference between the center and the second conveyor belt 12 after it is flipped. For example, the square tube material 10 in the present embodiment has a rectangular structure. If it is on the first conveyor belt 11, the height of the center of the square tube from the first conveyor belt 11 should be 1 / 2 of the long side. If it is flipped 90°, assuming that the flipping center remains unchanged, the height of the center of the square tube from the second conveyor belt 12 is still 1 / 2 of the long side. However, if the square tube is to be attached to the second conveyor belt 12 after flipping, the height from the center of the square tube to the second conveyor belt 12 should become 1 / 2 of the short side, so there will be a certain height difference.

[0046] If the drop is large, the square tube will vibrate too much or deflect too much when it falls onto the second conveyor belt 12. In order to reduce or avoid such a situation, the center of the perforation 211 is eccentrically arranged in the transverse direction relative to the center of the square tube. Figure 4 As shown in the figure, the center line Q1 of the perforation 211 is slightly to the left relative to the center line Q2 of the square tube. When the turntable 21 rotates counterclockwise, the adjustment plate 22 on the left side will rotate to a lower position, and the side of the square tube will fall and fit onto the left adjustment plate 22 accordingly. In this way, the center of the square tube can be lowered, so that the square tube can be more smoothly transmitted to the second conveyor belt 12.

[0047] It should be noted that, for the eccentric setting, if the gap between the perforation 211 and the material 10 is large, so that the height of the square tube can be reduced after the perforation 211 is flipped, the eccentric setting method may not be adopted. However, generally speaking, the gap between the perforation 211 and the material 10 should not be too large, so it is more reasonable to adopt the eccentric setting method.

[0048] As for other structures, the flipping device described in this embodiment also includes a base 51, and a side mounting plate 52 is installed on the upper side of the base 51. The first correction mechanism 31, the flipping mechanism 2, and the second correction mechanism 32 are all installed on the side mounting plate 52. These three components are installed on a side mounting plate 52 at the same time, which is equivalent to being set on a reference plane. In this way, the first correction mechanism 31, the flipping mechanism 2, and the second correction mechanism 32 can maintain good linearity.

[0049] In order to expand the application scope of the turning device, the turning device in this embodiment is also connected to a lifting mechanism 6, which is used to lift or lower the turning device to adjust the height difference between the turntable 21 and the conveyor belt. The main purpose of setting the lifting mechanism 6 is to allow the turning mechanism 2 to be applicable to materials 10 of more sizes and specifications, and to adjust the turning center to keep the center of the material 10 as close as possible.

[0050] It should be noted that, with respect to the lifting mechanism 6, in other embodiments, the lifting mechanism 6 can also be used to adjust the center of the material 10 after flipping, that is, when the material 10 is flipped in the flipping mechanism 2, the lifting mechanism 6 can also work at the same time to adjust the center after flipping, so that the material 10 can be smoothly transported to the second conveyor belt 12.

[0051] The lifting mechanism 6 in this embodiment includes a lifting motor 61, which is connected to a rotating screw 62. The rotating screw 62 is provided with a transmission nut, which is fixedly connected to the flip mechanism 2. The lifting motor 61 is installed on a top plate 63, and the top plate 63 is installed on the base 51 through four columns.

[0052] As for the structure of the flipping mechanism 2 itself, the flipping mechanism 2 in this embodiment also includes a driving motor 23 and a fixed disk frame 24. The driving motor 23 is installed on the fixed disk frame 24, and the turntable 21 is rotatably installed on the fixed disk frame 24. The driving motor 23 is connected to a driving gear, and the circumferential outer ring of the turntable 21 is provided with a tooth surface, and the driving gear is meshed with the tooth surface.

[0053] Therefore, for this embodiment, the overall workflow is as follows:

[0054] In the first step, the material 10 is placed on the first conveyor belt 11 and moved toward the turning device by the first conveyor belt 11;

[0055] In the second step, the first sensor 41 on the flipping device senses the material 10 and controls the first correcting mechanism 31 to start to clamp the material 10. After the clamping operation is completed, the first correcting mechanism 31 is closed and the material 10 continues to be conveyed;

[0056] In the third step, the material 10 enters the perforation 211 of the flipping mechanism 2 under the correction of the first correction mechanism 31. When the front end of the material 10 passes through the perforation 211 and passes through the second sensor 42, the second sensor 42 controls the flipping mechanism 2 to perform a flipping operation;

[0057] Step 4: During the turning process of the material 10, the rear end of the material 10 does not separate from the first conveyor belt 11, and the material 10 turns over while being conveyed until the rear end of the material 10 completely passes through the perforation 211;

[0058] In the fifth step, when the rear end of the material 10 passes through the second sensor 42, the second sensor 42 triggers the second correcting mechanism 32 to perform a correcting operation to clamp the material 10. After the clamping is completed, the second correcting mechanism 32 is closed and the material 10 continues to be conveyed.

[0059] Of course, if in other embodiments, a lifting mechanism 6 is used to adjust the center of the material 10 after flipping, then during the flipping process of the material 10 in the fourth step, the lifting mechanism 6 will intervene to adjust the height of the flipping mechanism 2, thereby adjusting the center height of the material 10 after flipping. After the adjustment, the lifting mechanism 6 will be reset to allow the next material 10 to be flipped.

[0060] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A method for turning over materials in an assembly line, characterized in that: A material turning device is used, and the material is transported to the processing equipment through a conveyor belt. The material is a tubular member, and the conveyor belt includes a first conveyor belt and a second conveyor belt. The material turning device is arranged between the first conveyor belt and the second conveyor belt. The turning device includes a turning mechanism, a first correction mechanism and a first sensor located on one side of the first conveyor belt, and a second correction mechanism and a second sensor located on one side of the second conveyor belt. The turning mechanism includes a turntable, and the turntable is provided with a perforation for the material to pass through. There is a clearance fit between the perforation and the material. The turning method is as follows: S1, placing the material on the first conveyor belt, and moving the material from the first conveyor belt to the flipping device; S2, the first sensor on the flipping device senses the material and controls the first correcting mechanism to start to clamp the material. After the clamping operation is completed, the first correcting mechanism is closed and the material continues to be conveyed; S3, the material enters the perforation of the flipping mechanism under the correction of the first correction mechanism, and when the front end of the material passes through the perforation and passes through the second sensor, the second sensor controls the flipping mechanism to perform a flipping operation, and the material is always in contact with the first conveyor belt during flipping; S4. During the turning process of the material, the rear end of the material does not separate from the first conveyor belt, and the material turns over while being conveyed, until the rear end of the material completely passes through the perforation; S5. When the rear end of the material passes through the second sensor, the second sensor triggers the second correcting mechanism to perform a correcting operation to clamp the material. After the clamping is completed, the second correcting mechanism is closed and the material continues to be transported.

2. The assembly line material turning method according to claim 1, characterized in that: The rotating disk is movably provided with an adjusting plate at the perforation for adjusting the size of the perforation.

3. The assembly line material turning method according to claim 1, characterized in that: The first conveyor belt and the second conveyor belt are located at the same height, the material is a rectangular square tube, and the center of the perforation is eccentrically arranged in the transverse direction relative to the center of the square tube.

4. The assembly line material turning method according to claim 1, characterized in that: The flipping device is also connected to a lifting mechanism, and the lifting mechanism is used to lift or lower the flipping device to adjust the height difference between the turntable and the conveyor belt.

5. The assembly line material turning method according to claim 1, characterized in that: The flipping mechanism also includes a driving motor, the driving motor is connected to a driving gear, the circumferential outer ring of the turntable is provided with a tooth surface, and the driving gear is meshed with the tooth surface.

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