Automatic overturning continuous production workbench for door keel assembly and control method

Abstract

The invention discloses an automatic overturning continuous production workbench for door keel assembly and a control method, and relates to the technical field of door production and machining, and the automatic overturning continuous production workbench comprises a rack, a rotating mechanism, a clamping mechanism, a workbench body and a control assembly. The clamping mechanism comprises two first clamps, each first clamp comprises two second clamps, the rotating mechanism is used for driving the clamping mechanism to rotate around a turnover axis, the working table comprises a working table top and a lifting assembly, and after a profile component used for manufacturing the door keel is placed on the working table top, the lifting assembly is used for lifting the profile component; the clamping mechanism can automatically move the profile component to the designed position, and automatic splicing of the door keel is achieved. Then the clamping mechanism clamps the door keel through mutual cooperation of a first clamp and a second clamp, after one face is machined, the lifting assembly drives the working table to be away from the clamping mechanism, the rotating mechanism drives the clamping mechanism to rotate, the door keel is turned over, and workers can machine the other face of the door keel; and the automation degree and the machining quality are improved.

Description

Technical Field

[0001] The invention relates to the technical field of door production and processing, and in particular to an automatic turning continuous production workbench for door keel assembly and a control method. Background Art

[0002] The assembly and processing of door keels are mainly used to improve the stability, anti-deformation ability and durability of door frames. Door keels are mostly made of steel sections. During the processing, the steel sections are first cut into specific lengths according to the design size, and then spliced. After splicing, one side is fixed first, and then the flip side is fixed. Currently, in the splicing operation of the skeleton, the splicing of the profiles and the flipping of the skeleton are mostly done manually by workers, with poor positioning accuracy and low production efficiency. At present, some existing technologies have disclosed door keel assembly and flipping devices for door frames, but most of them can only perform simple flipping work after the door keels are assembled. The splicing of the skeleton still needs to be done manually by workers, and the positioning work often needs to be measured with measuring tools, which is prone to errors. Moreover, due to differences in the operating proficiency of different workers, the skeleton is not only inefficient in mass production, but also difficult to control the quality and processing accuracy. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides an automatic flipping continuous production workbench and a control method for door keel assembly.

[0004] Among them, an automatic flipping continuous production workbench for door keel assembly includes: a frame, a rotating mechanism, a clamping mechanism, a workbench and a control component; the clamping mechanism is rotatably connected to the frame, and the clamping mechanism includes two first clamps that can approach or move away from each other in a first direction, and each of the first clamps includes two second clamps that can approach or move away from each other in a second direction, and the first direction is perpendicular to the second direction; the rotating mechanism is fixedly connected to the frame, and is used to drive the clamping mechanism to rotate around a flipping axis, and the flipping axis is parallel to the first direction; the workbench includes a work surface and a lifting component, the work surface is used to support the profile component of the door keel, and the lifting component is used to drive the work surface to approach or move away from the clamping mechanism; the control component is used to control the actions of the clamping mechanism, the rotating mechanism, and the workbench.

[0005] After the worker places the profile component used to make the door keel on the work surface, the first clamp and the second clamp can automatically move the profile component to the designed position to realize the automatic splicing of the door keel. Then the clamping mechanism clamps the door keel through the cooperation of the first clamp and the second clamp. After the door keel is processed, the lifting assembly drives the work surface away from the clamping mechanism, and the rotating mechanism drives the clamping mechanism to rotate, thereby turning the profile component over so that the worker can process the other side of the profile component.

[0006] Specifically, the clamping mechanism further includes a base frame, a first position sensor and at least one first cylinder, the base frame is rotatably connected to the frame, the first clamp is slidably connected to the base frame, the first cylinder is used to drive the first clamp to move along the first direction so that the two first clamps are close to or away from each other, and the first position sensor is used to measure the distance between the two first clamps. Pneumatic transmission has the characteristics of fast response speed and large output force, and when there are many moving parts, the use of pneumatic transmission is conducive to reducing the number of power sources and reducing the difficulty of control.

[0007] Specifically, the first clamp also includes a support member, a second position sensor and at least one second cylinder, the support member is slidably connected to the base frame, the two second clamps are slidably connected to the support member, the second cylinder is used to drive the second clamps to move along the second direction so that the two second clamps are closer to or farther away from each other, and the second position sensor is used to measure the distance between the two second clamps.

[0008] Furthermore, the first clamp further includes a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is arranged on a side of the support member in contact with the profile member, and the second pressure sensor is arranged on a side of the second clamp in contact with the profile member, and both the first pressure sensor and the second pressure sensor are electrically connected to the control component. The pressure sensors can be used to conveniently control the clamping force of the first clamp and the second clamp, so as to provide a clamping force of appropriate size for different profile members, so as to prevent the profile member from falling when flipping due to too small a clamping force, or from being damaged due to too large a clamping force.

[0009] Furthermore, the workbench further comprises at least one third pressure sensor, which is disposed between the workbench surface and the lifting assembly and is electrically connected to the control assembly. The third pressure sensor is used to measure the weight of the profile component so as to adjust the clamping force of the first clamp and the second clamp according to the weight of the profile component.

[0010] Furthermore, the workbench also includes a rotating positioning bracket, a positioning bracket rotating assembly, and a positioning bracket lifting assembly. The rotating positioning bracket includes a plurality of first positioning parts and a plurality of second positioning parts, the first positioning parts and the second positioning parts cooperate to position and clamp the profile components for making the door frame, the second positioning part is provided with a first limit switch and a second limit switch, the first limit switch and the second limit switch cooperate to determine whether the profile components are placed correctly; the positioning bracket rotating assembly is used to drive the rotating positioning bracket to rotate around the vertical axis; the positioning bracket lifting assembly is used to drive the rotating positioning bracket to rise or fall, so that the rotating positioning bracket is lower than the workbench surface.

[0011] The profile components can be accurately placed at the preset position by rotating the positioning bracket, which makes it convenient for the clamping mechanism to splice and clamp the profile components according to a predetermined program, thereby reducing the labor intensity of workers and improving the splicing accuracy and quality of the door frame.

[0012] Furthermore, a recovery through hole matching the shape of the rotating positioning bracket is provided on the work surface, and when the positioning bracket lifting assembly drives the rotating positioning bracket to descend, the rotating positioning bracket can pass through the recovery through hole, and the work surface can take out the profile component from the first positioning part and the second positioning part. After all the processed profile components are placed on the rotating positioning bracket, the rotating positioning bracket descends below the work surface and places the profile component on the work surface, so that the first clamp and the second clamp can move the profile component to complete the splicing work.

[0013] Furthermore, the first positioning portion and the second positioning portion can be close to or far away from each other, so as to adapt to the processing of door keels of different sizes and specifications.

[0014] The present application also provides a control method for controlling the above-mentioned flipping device, comprising the following steps:

[0015] placing the profile member in the first positioning portion and the second positioning portion;

[0016] Determining whether the profile component is correctly placed according to the switch states of the first limit switch and the second limit switch;

[0017] If the profile member is placed correctly, the rotating positioning bracket is rotated to a first preset angle;

[0018] Determine whether the number of rotations of the rotating positioning bracket is equal to a first threshold value, if not, repeat the above steps, if yes, lower the rotating positioning bracket so that the rotating positioning bracket is lower than the work surface;

[0019] The two first clamps and the two second clamps are moved closer to each other, move and clamp the profile component, and complete the assembly of the door keel.

[0020] Furthermore, whether the profile components are placed correctly is determined by the following conditions:

[0021] When the first limit switch is not covered by the profile member and the second limit switch is covered by the profile member, the profile member is correctly placed.

[0022] Technical effects and advantages of the present invention:

[0023] 1. The cooperation between the workbench and the clamping mechanism can realize the automatic splicing of the door keel, improve the automation degree of the door keel production process and the manufacturing accuracy of the door keel, and improve the quality of the door keel;

[0024] 2. By setting up a rotating mechanism to realize the automatic flipping of the door keel, on the one hand, the degree of automation of the door keel production process is improved and the labor intensity of workers is reduced. At the same time, it can reduce the accident rate of the production process and effectively improve the safety of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a three-dimensional schematic diagram of the flipping device provided by the present invention.

[0026] Figure 2 The present invention is a three-dimensional schematic diagram of the flipping device provided by the present invention.

[0027] Figure 3 A three-dimensional schematic diagram of the rotation positioning bracket provided by the present invention.

[0028] Figure 4 A cross-sectional view of the rotation positioning bracket provided by the present invention.

[0029] Figure 5 It is a schematic diagram of the profile component of the present invention when it is placed on the rotating positioning bracket.

[0030] Figure 6 It is a schematic diagram of the rotary positioning bracket in the present invention being lowered below the work surface.

[0031] The accompanying drawings are marked as follows: 1. frame; 2. rotating mechanism; 21. driving motor; 22. transmission assembly; 3. clamping mechanism; 31. first clamp; 32. second clamp; 33. base frame; 34. first position sensor; 35. first cylinder; 36. support; 37. second position sensor; 38. second cylinder; 39. first pressure sensor; 310. second pressure sensor; 4. workbench; 41. workbench surface; 411. recovery through hole; 42. lifting assembly; 43. third pressure sensor; 44. rotating positioning bracket; 441. first positioning part; 442. second positioning part; 443. first limit switch; 444. second limit switch; 45. positioning bracket rotating assembly; 46. positioning bracket lifting assembly; 5. control assembly; 51. start pedal; 52. stop pedal; 53. forward switch; 54. reverse switch; 1001. profile component. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] refer to Figures 1 to 6 , Embodiment 1 of the present invention provides an automatic flipping continuous production workbench for door keel assembly, comprising a frame 1, a rotating mechanism 2, a clamping mechanism 3, a workbench 4 and a control component 5. The clamping mechanism 3 is rotatably connected to the frame 1, and the clamping mechanism 3 includes two first clamps 31 that can approach or move away from each other in a first direction, and each first clamp 31 includes two second clamps 32 that can approach or move away from each other in a second direction, and the first direction is perpendicular to the second direction. The rotating mechanism 2 is fixedly connected to the frame 1, and is used to drive the clamping mechanism 3 to rotate around a flipping axis, and the flipping axis is parallel to the first direction. The workbench 4 includes a work surface 41 and a lifting component 42, the work surface 41 is used to support the profile component 1001 of the door keel, and the lifting component 42 is used to drive the work surface 41 to approach or move away from the clamping mechanism 3. The control component 5 is used to control the actions of the clamping mechanism 3, the rotating mechanism 2, and the workbench 4.

[0035] After the worker places the profile member used for making the door keel on the work surface 41, the first clamp 31 and the second clamp 32 can automatically move the profile member to the designed position to realize the automatic splicing of the door keel profile member 1001. Then, the clamping mechanism 3 clamps the profile member 1001 through the cooperation of the first clamp 31 and the second clamp 32. After the processing of the profile member 1001 is completed, the lifting assembly 42 drives the work surface 41 away from the clamping mechanism 3, and the rotating mechanism 2 drives the clamping mechanism 3 to rotate, thereby turning the profile member 1001 over, so that the worker can process the other side of the profile member 1001.

[0036] There are many ways to drive the first clamp 31 and the second clamp 32. Specifically, Figure 1 As shown, the clamping mechanism 3 includes a base frame 33, a first position sensor 34 and at least one first cylinder 35. The base frame 33 is rotatably connected to the frame 1, the first clamp 31 is slidably connected to the base frame 33, the first cylinder 35 is used to drive the first clamp 31 to move along the first direction so that the two first clamps 31 are close to or away from each other, and the first position sensor 34 is used to measure the distance between the two first clamps 31. Pneumatic transmission has the characteristics of fast response speed and large output force, and when there are many moving parts, the use of pneumatic transmission is conducive to reducing the number of power sources and reducing the difficulty of control.

[0037] In the actual production process, two first cylinders 35 can be provided so that the two first clamps 31 can move closer to or farther from each other at the same time, which is beneficial to reducing the stroke of a single cylinder and the size of the cylinder. Figure 1 As shown, a first cylinder 35 is provided to push one of the two first clamps 31 to move, while the other first clamp 31 remains stationary, which can reduce the complexity of the control air circuit.

[0038] Similarly, the first clamp 31 also includes a support member 36, a second position sensor 37 and at least one second cylinder 38. The support member 36 is slidably connected to the base frame 33. The two second clamps 32 are both slidably connected to the support member 36. The second cylinder 38 is used to drive the second clamps 32 to move along the second direction so that the two second clamps 32 are closer to or farther away from each other. The second position sensor 37 is used to measure the distance between the two second clamps 32.

[0039] The driving method of the first clamp 31 and the second clamp 32 can also be a double-helix screw and a sliding screw sleeve. The spiral rotation directions of the two ends of the screw are opposite. When the screw rotates, it can drive the two first clamps 31 or the two second clamps 32 to approach each other. Or a ball screw plus a sliding sleeve driving method is adopted. The ball screw is provided with a spiral groove with opposite rotation directions at both ends. When the ball screw rotates, the two sliding sleeves mounted on the ball screw will approach or move away at the same time. The above two driving methods have the advantage of high precision, but the disadvantage is that the clamping force provided is small. When the profile component 1001 of the door keel is heavy, it cannot be effectively clamped and is easy to fall when flipped. At the same time, both the screw and the ball screw need to be equipped with a synchronous motor for driving, which increases the complexity of the control system.

[0040] Specifically, Figure 1 As shown, the rotating mechanism 2 includes a driving motor 21, a transmission assembly 22 and a frequency converter. The driving motor 21 drives the clamping mechanism 3 to rotate around the flip axis through the transmission assembly 22. The frequency converter is used to control the rotation speed of the driving motor 21. When flipping the profile member 1001 of the door keel, the flipping process is made smoother by changing the rotation speed of the driving motor 21, so that the profile member 1001 can be flipped with a smaller clamping force, and the profile member 1001 can be better protected.

[0041] There are many ways to implement the transmission assembly 22, such as Figure 1 As shown, the first embodiment adopts the gear transmission, which has large connection rigidity and stable torque transmission. In actual production, the transmission component 22 can also adopt chain transmission, belt transmission and other transmission forms.

[0042] There are many implementations of the lifting assembly 42 in the workbench 4, namely, Figure 1 As shown, a hydraulic cylinder or a gas cylinder is used to drive the work surface 41 to move, and a scissor-type lifting mechanism can also be used to achieve this.

[0043] Furthermore, if Figure 2 As shown, the control assembly 5 also includes a start pedal 51 and a stop pedal 52. The start pedal 51 is used to control the action of the rotating mechanism 2, and the stop pedal 52 is used to control the stopping action of the rotating mechanism 2. When the worker completes the processing of the profile component 1001, the worker can step on the pedal to activate the rotating mechanism 2 to turn over the profile component 1001. When the profile component 1001 is turned over in place, the stop pedal 52 is stepped on to stop the rotating mechanism 2.

[0044] Furthermore, a forward switch 53 and a reverse switch 54 may be provided to change the rotation direction of the drive motor 21. For example, when the rotating mechanism 2 drives the clamping mechanism 3 to move and completes the turning over of the profile member 1001, the base frame 33 of the clamping mechanism 3 triggers the reverse switch 54. When the worker steps on the start pedal 51, the drive motor 21 starts to reverse, causing the clamping mechanism 3 to rotate in the clockwise direction. When the clamping mechanism 3 rotates to the right position, the forward switch 53 is triggered, and the rotation direction of the drive motor 21 changes again. When the worker steps on the start pedal 51 again, the drive motor 21 rotates in the counterclockwise direction. This avoids the problem of excessive winding of wires or pipes caused by the motor always rotating in one direction.

[0045] Furthermore, the first clamp 31 further includes a first pressure sensor 39 and a second pressure sensor 310. The first pressure sensor 39 is disposed on a side of the support member 36 that contacts the profile member 1001, and the second pressure sensor 310 is disposed on a side of the second clamp 32 that contacts the profile member 1001. Both the first pressure sensor 39 and the second pressure sensor 310 are electrically connected to the control assembly 5. The pressure sensors can conveniently control the clamping force of the first clamp 31 and the second clamp 32, so as to provide a clamping force of appropriate size for different profile members 1001, so as to prevent the profile member 1001 from falling when flipped due to too small a clamping force, or from being damaged due to too large a clamping force.

[0046] Furthermore, the workbench 4 further includes at least one third pressure sensor 43, which is disposed between the workbench surface 41 and the lifting assembly 42, and is electrically connected to the control assembly 5. The third pressure sensor 43 is used to measure the weight of the profile member 1001, so as to adjust the clamping force of the first clamp 31 and the second clamp 32 according to the weight of the profile member 1001.

[0047] Embodiment 2

[0048] When workers manually place the profile member 1001, they may place the profile member 1001 crookedly, or even beyond the working range of the clamping mechanism 3, causing the clamping mechanism 3 to be unable to splice the profile members 1001 together. At the same time, in order to place the profile member 1001 in a suitable position, workers need to constantly move the profile member 1001, which is labor-intensive and poses a safety hazard. Therefore, it is necessary to set an automatic positioning and placing mechanism to ensure that the placement position of the profile member 1001 is within the working range of the clamping mechanism 3.

[0049] Based on the above analysis, this embodiment is further improved on the basis of the first embodiment, such as Figures 3 to 6As shown, the workbench 4 also includes a rotating positioning bracket 44, a positioning bracket rotating assembly 45 and a positioning bracket lifting assembly 46. The rotating positioning bracket 44 includes a plurality of first positioning portions 441 and a plurality of second positioning portions 442, the first positioning portions 441 and the second positioning portions 442 cooperate to position and clamp the profile member 1001 of the door keel, the second positioning portion 442 is provided with a first limit switch 443 and a second limit switch 444, the first limit switch 443 and the second limit switch 444 cooperate to determine whether the profile member 1001 is placed correctly, the positioning bracket rotating assembly 45 is used to drive the rotating positioning bracket 44 to rotate around the vertical axis, and the positioning bracket lifting assembly 46 is used to drive the rotating positioning bracket 44 to rise or fall, so that the rotating positioning bracket 44 is lower than the workbench surface 41.

[0050] The control method of the flipping device based on the above improvement is as follows:

[0051] The profile member 1001 transferred from the previous process is placed on the first positioning portion 441 and the second positioning portion 442. The first positioning portion 441 and the second positioning portion 442 are configured to limit the movement of the profile member 1001 in a direction perpendicular to the length. The first positioning portion 441 can limit the movement of one end of the profile member 1001. The first limit switch 443 and the second limit switch 444 on the second positioning portion 442 can determine whether the profile member 1001 is placed correctly. Figure 5 Taking the profile member 1001 with a cut corner as an example, when the cut corner direction of the profile member 1001 is placed correctly and the length is accurate, the first limit switch 443 is not blocked and the second limit switch 444 is blocked. If the cut corner direction of the profile member 1001 is placed incorrectly, the first limit switch 443 is blocked and the second limit switch 444 is not blocked. If the length of the profile member 1001 is short, the first limit switch 443 and the second limit switch 444 are both blocked. If the length of the profile member 1001 is too long, the first limit switch 443 and the second limit switch 444 are both blocked.

[0052] When the first limit switch 443 and the second limit switch 444 determine that the profile member 1001 is correctly placed, the rotation positioning bracket 44 rotates to a first preset angle. The specific angle should be determined according to the structure of the door keel, for example Figure 5 and Figure 6 As shown, a common door keel is composed of four frame frames, and the rotating positioning bracket 44 needs to rotate 90° each time to receive the next profile component 1001 transferred thereto.

[0053] It is determined whether the number of rotations of the rotating positioning bracket 44 is equal to the first threshold value, that is, whether all the profile components 1001 used for assembling the door keel have been placed on the rotating positioning bracket 44. The value of the first threshold value should also be determined according to the structure of the door keel, such as Figure 5 and Figure 6 As shown, after the rotating positioning bracket 44 rotates four times, all the profile components 1001 have been placed, and the rotating positioning bracket 44 has been rotated to the right position, the rotating positioning bracket 44 is lowered to make the rotating positioning bracket 44 lower than the work surface 41, and then the profile component 1001 is placed on the work surface 41. Then, the two first clamps 31 and the two second clamps 32 approach each other, move and clamp the profile component 1001, and complete the assembly of the door keel.

[0054] Specifically, a recovery hole 411 that is compatible with the shape of the rotating positioning bracket 44 is opened on the work surface 41. When the positioning bracket lifting assembly 46 drives the rotating positioning bracket 44 to descend, the rotating positioning bracket 44 can pass through the recovery hole 411, and the work surface 41 can take out the profile component 1001 from the first positioning portion 441 and the second positioning portion 442.

[0055] The positioning bracket rotating assembly 45 can be as follows Figure 4 The method shown is implemented in the form of a stepper motor plus gear transmission, but other methods can also be used.

[0056] The positioning bracket lifting assembly 46 can be as follows Figure 4 The method shown is implemented in the form of a cylinder, but it can also be implemented in other ways such as a gear rack.

[0057] There are many ways to implement the first limit switch 443 and the second limit switch 444, that is, a micro switch or a laser switch can be used.

[0058] Furthermore, the first positioning portion 441 and the second positioning portion 442 can be set to be adjustable, and can be close to or away from each other, so as to adapt to the processing of door keels of different specifications and sizes. Figure 3 The connection shown is made by a slide groove, but it can also be realized by other methods, which are well known to those skilled in the art and will not be described again.

[0059] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A door keel assembly automatic flip continuous production workbench, characterized in that: It comprises a frame (1), a rotating mechanism (2), a clamping mechanism (3), a workbench (4) and a control component (5); The clamping mechanism (3) is rotatably connected to the frame (1), and the clamping mechanism (3) comprises two first clamps (31) that can approach or move away from each other in a first direction, and each of the first clamps (31) comprises two second clamps (32) that can approach or move away from each other in a second direction, and the first direction is perpendicular to the second direction; The rotating mechanism (2) is fixedly connected to the frame (1) and is used to drive the clamping mechanism (3) to rotate around a flip axis, wherein the flip axis is parallel to the first direction; The workbench (4) comprises a work surface (41) and a lifting assembly (42), wherein the work surface (41) is used to support the profile member (1001) of the door keel, and the lifting assembly (42) is used to drive the work surface (41) to move closer to or farther from the clamping mechanism (3); The control component (5) is used to control the actions of the clamping mechanism (3), the rotating mechanism (2) and the workbench (4).

2. The door keel assembly automatic flip continuous production workbench according to claim 1 is characterized in that: The clamping mechanism (3) further comprises a base frame (33), a first position sensor (34) and at least one first cylinder (35); the base frame (33) is rotatably connected to the frame (1); the first clamp (31) is slidably connected to the base frame (33); the first cylinder (35) is used to drive the first clamp (31) to move along the first direction so that the two first clamps (31) are moved closer to or farther from each other; and the first position sensor (34) is used to measure the distance between the two first clamps (31).

3. The door keel assembly automatic flip continuous production workbench according to claim 2 is characterized in that: The first clamp (31) further comprises a support member (36), a second position sensor (37) and at least one second cylinder (38); the support member (36) is slidably connected to the base frame (33); the two second clamps (32) are both slidably connected to the support member (36); the second cylinder (38) is used to drive the second clamps (32) to move along the second direction so that the two second clamps (32) are closer to or farther away from each other; the second position sensor (37) is used to measure the distance between the two second clamps (32).

4. The door keel assembly automatic turning continuous production workbench according to claim 3 is characterized in that: The first clamp (31) further comprises a first pressure sensor (39) and a second pressure sensor (310); The first pressure sensor (39) is arranged on a side of the support member (36) in contact with the profile member (1001), and the second pressure sensor (310) is arranged on a side of the second clamp (32) in contact with the profile member (1001), and the first pressure sensor (39) and the second pressure sensor (310) are both electrically connected to the control component (5).

5. The door keel assembly automatic turning continuous production workbench according to claim 4 is characterized in that: The workbench (4) further comprises at least one third pressure sensor (43), wherein the third pressure sensor (43) is arranged between the workbench surface (41) and the lifting assembly (42), and the third pressure sensor (43) is electrically connected to the control assembly (5).

6. The door keel assembly automatic turning continuous production workbench according to claim 1 is characterized in that: The workbench (4) further comprises a rotating positioning bracket (44), a positioning bracket rotating assembly (45) and a positioning bracket lifting assembly (46); The rotating positioning bracket (44) comprises a plurality of first positioning parts (441) and a plurality of second positioning parts (442), wherein the first positioning parts (441) and the second positioning parts (442) cooperate to position and clamp the profile component (1001), and the second positioning part (442) is provided with a first limit switch (443) and a second limit switch (444), and the first limit switch (443) and the second limit switch (444) cooperate to determine whether the profile component (1001) is correctly placed; The positioning bracket rotating assembly (45) is used to drive the rotating positioning bracket (44) to rotate around a vertical axis; The positioning bracket lifting assembly (46) is used to drive the rotating positioning bracket (44) to rise or fall, so that the rotating positioning bracket (44) is lower than the working table (41).

7. The door keel assembly automatic turning continuous production workbench according to claim 6 is characterized in that: The work surface (41) is provided with a recovery through hole (411) that matches the shape of the rotating positioning bracket (44); when the positioning bracket lifting assembly (46) drives the rotating positioning bracket (44) to descend, the rotating positioning bracket (44) can pass through the recovery through hole (411), and the work surface (41) can take the profile component (1001) out of the first positioning portion (441) and the second positioning portion (442).

8. The door keel assembly automatic turning continuous production workbench according to claim 6 is characterized in that: The first positioning portion (441) and the second positioning portion (442) can be moved closer to or farther from each other.

9. A control method for an automatic turnover continuous production workbench for door keel assembly, used to control the automatic turnover continuous production workbench for door keel assembly according to any one of claims 6 to 8, characterized in that: The following steps are involved: Placing the profile member (1001) in the first positioning portion (441) and the second positioning portion (442); judging whether the profile component (1001) is correctly placed according to the switch states of the first limit switch (443) and the second limit switch (444); If the profile component (1001) is correctly placed, the rotating positioning bracket (44) is rotated to a first preset angle; Determine whether the number of rotations of the rotating positioning bracket (44) is equal to a first threshold value; if not, repeat the above steps; if yes, lower the rotating positioning bracket (44) so ​​that the rotating positioning bracket (44) is lower than the working table (41); The two first clamps (31) and the two second clamps (32) are moved closer to each other, move and clamp the profile member (1001), and the assembly of the door keel is completed.

10. The control method of the door keel assembly automatic turning continuous production workbench according to claim 9 is characterized in that: Whether the profile member (1001) is correctly placed is determined by the following conditions: When the first limit switch (443) is not covered by the profile member (1001) and the second limit switch (444) is covered by the profile member (1001), the profile member (1001) is correctly placed.

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