A common membrane turnover mechanism and system for hot riveting and welding

Abstract

The utility model discloses a hot riveting common membrane flipping mechanism and system, comprising a membrane, a fixing part and a flipping part, wherein the fixing part is the same part of the membrane with a sunshade and without a sunshade, and the flipping part comprises a membrane bracket, wherein the top and bottom ends of the membrane bracket are respectively provided with a first membrane part with a sunshade and a second membrane part without a sunshade; the membrane bracket can flip and switch the first membrane part and the second membrane part through a flipping mechanism; the positioning pin is telescopically installed on the membrane bottom plate through a telescopic mechanism, and positioning holes are respectively provided on both sides of the membrane bracket; the sensor assembly comprises a first sensor for detecting whether the welding parts on the first and second membrane parts have a sunshade and a plurality of second sensors for detecting whether there are welding parts above the membrane; the controller input end is electrically connected to the first sensor and the plurality of second sensors, and the output end is electrically connected to the flipping mechanism and the telescopic mechanism. The utility model can realize the common membrane welding of two door panels with small differences, and effectively prevent the two welding parts from being misplaced.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a hot riveting and welding common fetal membrane turning mechanism and system. Background Art

[0002] With the development of economy, people have more and more requirements for car interior. On the door panel interior, many models have been equipped with built-in sunshades on the doors. Existing sunshades are usually welded to the door panel interior parts with welding equipment.

[0003] Due to different configuration requirements, the door panel interior parts of the same model include both those with sunshades and those without sunshades. Although there are differences between these two door panels, the differences are not great. The existing solutions usually develop welding membranes for door panels with sunshades and those without sunshades respectively. However, since the automotive interior industry generally cannot adopt the inventory method, that is, using one welding equipment, using welding membranes with sunshades and welding membranes without sunshades respectively, after welding a certain number of door panels with sunshades, the membranes are replaced to weld door panels without sunshades, and such an alternating welding production method is adopted; the actual door panel interior welding method is an instant production and instant delivery mode, and the time from the order of the car factory to the delivery time is generally within 6 hours. At the same time, the automobile door panels with and without sunshades also appear randomly, and there is no pattern to follow. Therefore, if welding equipment is configured for each welding membrane separately, it will not only lead to an increase in the production cost of the equipment, but also greatly reduce its equipment utilization rate, and does not meet the existing economical and fast production needs. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a common fetal membrane turnover mechanism and system for hot riveting and welding.

[0005] The utility model discloses a common fetal membrane turning mechanism for hot riveting and welding, comprising:

[0006] The fetal membrane is mounted on the fetal membrane bottom plate, and includes a fixing portion and a turning portion, wherein the fixing portion is the same portion of the fetal membrane with a sunshade and the fetal membrane without a sunshade, and the turning portion includes a fetal membrane support, wherein the top and bottom ends of the fetal membrane support are respectively provided with a first fetal membrane portion with a sunshade and a second fetal membrane portion without a sunshade;

[0007] A turning mechanism with a rotating shaft, which is installed on the fetal membrane bottom plate, the middle part of the rotating shaft is fixedly connected to the fetal membrane support, and the fetal membrane support can be turned over by the turning mechanism to switch between the first fetal membrane part and the second fetal membrane part;

[0008] A positioning pin is telescopically mounted on the fetal membrane bottom plate on one side of the fetal membrane support through a telescopic mechanism, and positioning holes cooperating with the positioning pin are respectively provided on both sides of the fetal membrane support;

[0009] The sensor assembly includes a first sensor for detecting whether there is a sunshade on the welding parts on the first fetal membrane part and the second fetal membrane part, and a plurality of second sensors for detecting whether there is a welding part above the fetal membrane;

[0010] A controller, wherein the first sensor and the plurality of the second sensors are electrically connected to input ends of the controller respectively, and the flipping mechanism and the telescopic mechanism are electrically connected to output ends of the controller respectively.

[0011] As a further improvement of the utility model, the fetal membrane support is a rectangular frame structure;

[0012] The two ends of the fetal membrane support are respectively fixedly connected to the rotating shaft, and the fetal membrane bottom plate is respectively installed with a rotating shaft support frame for supporting the rotating shaft corresponding to the two ends of the fetal membrane support, and the rotating shaft at one end passes through the rotating shaft support frame and is transmission-connected to the flipping mechanism;

[0013] The positioning holes are provided on both sides of one end of the fetal membrane support close to the flipping mechanism, and the positioning pin is telescopically installed on the fetal membrane bottom plate at one end of the fetal membrane support away from the fixing part through the telescopic mechanism. When the fetal membrane support is flipped into place, the positioning pin is inserted into the positioning hole on the corresponding side;

[0014] The first fetal membrane part and the second fetal membrane part are respectively installed at the top end and the bottom end of the fetal membrane support.

[0015] As a further improvement of the utility model, the flipping mechanism includes a gear, a rack, a rack driving cylinder, a slide rail fixing seat, and a slide rail;

[0016] The rack drive cylinder is installed on the fetal membrane bottom plate, the piston rod end of the rack drive cylinder is fixedly connected to one end of the rack, the bottom of the rack is slidably arranged on the slide rail, and the slide rail is installed on the fetal membrane bottom plate through the slide rail fixing seat;

[0017] The gear is transmission-connected to the rotating shaft at one end of the fetal membrane support, and the lower part of the gear is meshed with the rack. The piston rod can push the rack to reciprocate through the rack-driving cylinder, and the rack-driving cylinder is also electrically connected to the output end of the controller.

[0018] As a further improvement of the utility model, the telescopic mechanism includes a positioning pin driving cylinder, and the positioning pin driving cylinder is electrically connected to the output end of the controller;

[0019] The positioning pin driving cylinder is fixedly mounted on the fetal membrane bottom plate of the fetal membrane support away from the fixing part at one end through the cylinder fixing seat;

[0020] The piston rod end of the positioning pin driving cylinder is fixedly connected to the positioning pin. When the fetal membrane support is flipped into place, the positioning pin can be inserted into the positioning hole on the corresponding side of the fetal membrane support through the positioning pin driving cylinder.

[0021] As a further improvement of the present invention, the first sensor is fixedly mounted on the fetal membrane bottom plate at one end of the fetal membrane bracket through a sensor fixing plate;

[0022] The irradiation direction of the first sensor is toward the welding part on the first fetal membrane part or the second fetal membrane part.

[0023] As a further improvement of the present invention, a plurality of the second sensors are respectively arranged on the fetal membrane bottom plates at both ends of the fetal membrane support and at both ends of the fixing part in a symmetrical manner in pairs;

[0024] The plurality of second sensors are used to detect whether there are welding parts above the fixing portion and the first and second fetal membrane portions.

[0025] As a further improvement of the present invention, the flipping mechanism can drive the fetal membrane support to rotate and flip ±180°.

[0026] As a further improvement of the present invention, the controller is a PLC.

[0027] The utility model also discloses a hot riveting and welding common fetal membrane turning system, comprising the hot riveting and welding common fetal membrane turning mechanism, and further comprising:

[0028] A scanner gun, which is used to identify the door panel information QR code on the welded part;

[0029] An MES system is electrically connected to the scanning gun and is communicatively connected to the controller.

[0030] Compared with the prior art, the beneficial effects of the utility model are:

[0031] The utility model sets the fetal membrane as a fixing part and a turning part, the turning part includes a fetal membrane bracket, the top and bottom ends of the fetal membrane bracket are respectively provided with a first fetal membrane part with a sunshade and a second fetal membrane part without a sunshade, and the turning and switching of the first fetal membrane part and the second fetal membrane part are realized through the turning mechanism, so that two door panels with small differences can be welded with the same fetal membrane, and at the same time, with multiple sensors, it can effectively prevent the misplacement of the two welded parts. Compared with the existing technology, it reduces the production cost of the equipment and greatly improves the utilization rate of the equipment, meeting the existing economical and fast production needs;

[0032] The utility model provides a positioning pin, cooperates with the telescopic mechanism and the positioning holes on both sides of the fetal membrane support, and can lock the fetal membrane support after the fetal membrane support is flipped 180 degrees, so as to facilitate the welding work of the welded parts and avoid the occurrence of welding errors caused by sliding displacement of the fetal membrane support during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a common fetal membrane turning mechanism for hot riveting welding disclosed in an embodiment of the utility model;

[0034] Figure 2 A top view of the structure of a common fetal membrane turning mechanism for hot riveting and welding disclosed in an embodiment of the utility model;

[0035] Figure 3 It is a schematic diagram of the installation structure of the turning part, the fetal membrane bottom plate, the telescopic mechanism and the turning mechanism of the hot riveting common fetal membrane turning mechanism disclosed in an embodiment of the utility model;

[0036] Figure 4 It is a schematic diagram of the installation structure of the turning part, the telescopic mechanism and the turning mechanism of the common membrane turning mechanism for hot riveting welding disclosed in an embodiment of the utility model;

[0037] Figure 5 The utility model discloses a turning part of a common fetal membrane turning mechanism for hot riveting welding and a schematic diagram of the installation structure of the turning mechanism.

[0038] In the figure:

[0039] 1. Fixing part; 2. Flipping part; 21. Fetal membrane support; 211. Rectangular frame body; 212. Connecting plate; 213. Positioning hole; 22. Rotating shaft support frame; 3. Fetal membrane bottom plate; 41. Rack drive cylinder; 42. Rack; 43. Slide rail; 44. Slide rail fixing seat; 45. Gear; 46. Rotating shaft; 51. Positioning pin; 52. Positioning pin driving cylinder; 6. First sensor; 7. Sensor fixing plate. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0044] like Figure 1-2 As shown, a hot riveting common fetal membrane flipping mechanism provided by the utility model includes a fetal membrane, a flipping mechanism with a rotating shaft 46, a positioning pin 51, a sensor assembly and a controller; wherein the fetal membrane is installed on the fetal membrane bottom plate 3, including a fixing portion 1 and a flipping portion 2, the fixing portion 1 is the same part of the fetal membrane with a sunshade and the fetal membrane without a sunshade, the flipping portion 2 includes a fetal membrane bracket 21, the top and bottom ends of the fetal membrane bracket 21 are respectively provided with a first fetal membrane portion with a sunshade and a second fetal membrane portion without a sunshade; the flipping mechanism is installed on the fetal membrane bottom plate 3, the middle part of the rotating shaft 46 is fixedly connected to the fetal membrane bracket 21, and the fetal membrane bracket 21 can flip and switch the first fetal membrane part and the second fetal membrane part through a flipping mechanism, and the positioning pin 51 can be telescopically installed on the fetal membrane bottom plate 3 on one side of the fetal membrane bracket 21 through a telescopic mechanism. The two sides of the fetal membrane bracket 21 are respectively provided with positioning holes 213 that cooperate with the positioning pin 51. The sensor assembly includes a first sensor 6 for detecting whether there is a sunshade on the welding parts on the first fetal membrane part and the second fetal membrane part, and a plurality of second sensors for detecting whether there are welding parts above the fetal membrane. The first sensor 6 and the plurality of second sensors are electrically connected to the input end of the controller respectively, and the flipping mechanism and the telescopic mechanism are electrically connected to the output end of the controller respectively.

[0045] In this embodiment, the fetal membrane is set as a fixing part 1 and a flipping part 2, the flipping part 2 includes a fetal membrane bracket 21, and the top and bottom ends of the fetal membrane are respectively provided with a first fetal membrane part with a sunshade and a second fetal membrane part without a sunshade. The flipping mechanism realizes the flipping and switching of the first fetal membrane part and the second fetal membrane part, so that two door panels with small differences can share the same fetal membrane for welding. At the same time, in conjunction with multiple sensors, it can effectively prevent the misplacement of the two welded parts. Compared with the existing technology, it reduces the equipment production cost and greatly improves the equipment utilization rate, meeting the existing economical and fast production needs.

[0046] Specific:

[0047] like Figure 3-5 As shown, in the above embodiment, preferably, the fetal membrane support 21 is a rectangular frame structure, specifically including a rectangular frame main body 211 and a connecting plate 212, wherein the two ends of the rectangular frame main body 211 are respectively connected with the connecting plates 212, and the connecting plates 212 and the two end surfaces of the rectangular frame main body 211 are provided with through holes for the rotating shaft 46 to pass through the center, and the fetal membrane bottom plate 3 corresponds to the two ends of the fetal membrane support 21. The two ends are respectively installed with a rotating shaft support frame 22 for supporting the rotating shaft. During actual installation, the rotating shaft support frames 22 on both sides are respectively connected to the connecting plates 212 on the corresponding sides, and the rotating shafts 46 located at the two ends of the fetal membrane support 21 can be rotatably placed in the rotating shaft support frame 22 on the corresponding side after passing through the through holes of the connecting plates 212 on the corresponding sides. The rotating shaft support frame 22 is composed of a bearing seat and a bearing located in the bearing seat.

[0048] In the above embodiment, preferably, a positioning hole 213 is respectively provided on both sides of the connecting plate 212 at one end of the fetal membrane support 21 close to the flipping mechanism, and the positioning hole 213 can cooperate with the positioning pin 51 to realize the flipping locking of the fetal membrane support 21. The positioning pin 51 in this embodiment is telescopically installed on the fetal membrane bottom plate 3 at one end of the fetal membrane support 21 away from the fixed part 1 through a telescopic mechanism. When the fetal membrane support 21 is flipped into place, the positioning pin 51 is inserted into the positioning hole 213 on the corresponding side under the drive of the telescopic mechanism; the top and bottom ends of the fetal membrane support 21 are respectively installed with a first fetal membrane part with a sunshade and a second fetal membrane part without a sunshade.

[0049] In the above embodiment, preferably, the flipping mechanism includes a rack-driven cylinder 41, a rack 42, a slide rail 43, a slide rail fixing seat 44, a gear 45 and a rotating shaft 46, wherein the rack-driven cylinder 41 is installed on the fetal membrane base plate 3 and is placed on one side of the fixed part 1, the piston rod end of the rack-driven cylinder 41 is fixedly connected to one end of the rack 42, the bottom of the rack 42 is slid on the slide rail 43, the slide rail 43 is installed on the fetal membrane base plate 3 through the slide rail fixing seat 44, the gear 45 is placed above the rack 42, and the gear 45 is transmission-connected to the rotating shaft 46 at one end of the fetal membrane support, the lower part of the gear 45 is meshed with the rack 42, the piston rod can push the rack 42 to reciprocate through the rack-driven cylinder, and the rack-driven cylinder 41 is also electrically connected to the output end of the controller.

[0050] In the above embodiment, preferably, the flipping mechanism can drive the fetal membrane support 21 to rotate and flip ±180°.

[0051] During actual operation, when the piston rod end of the rack driving cylinder 41 extends, the rack driving cylinder 41 drives the rack 42 and the gear 45 to rotate, so as to drive the fetal membrane support 21 to flip. Assuming that the fetal membrane support 21 is the first fetal membrane part with a sunshade curtain at this time, the fetal membrane at this time is a fetal membrane with a sunshade curtain. Similarly, when the piston rod end of the rack driving cylinder 41 contracts, the rack driving cylinder 41 drives the rack 42 and the gear 45 to rotate in the opposite direction. At this time, the fetal membrane support 21 is the second fetal membrane part without a sunshade curtain, that is, the fetal membrane is a fetal membrane without a sunshade curtain. This is repeated to realize the flipping and switching of the first fetal membrane part and the second fetal membrane part on the fetal membrane support 21.

[0052] In the above embodiment, preferably, the telescopic mechanism includes a positioning pin driving cylinder 52, which is fixedly mounted on the fetal membrane bottom plate 3 at one end of the fetal membrane support 21 away from the fixing portion 1 through a cylinder fixing seat, and the positioning pin 51 is fixedly mounted on the piston rod end of the positioning pin driving cylinder 52, and the positioning pin 51 can be driven by the positioning pin driving cylinder 52 to extend and retract in the horizontal direction toward the fetal membrane support 21, so that when the fetal membrane support 21 is flipped into place, the positioning pin 51 can be inserted into the positioning hole 213 on the corresponding side of the fetal membrane support 21 through the positioning pin driving cylinder 52. The positioning pin in this embodiment can be a pin.

[0053] During actual operation, when the fetal membrane support 21 is flipped into place under the drive of the rack driving cylinder 41, the piston rod end of the positioning pin driving cylinder 52 extends out and drives the pin to be inserted into the positioning hole 213 on the corresponding side of the fetal membrane support 21. At this time, the fetal membrane support 21 is fixed and will no longer rotate; when the piston rod end of the positioning pin driving cylinder 52 contracts, the pin is pulled out of the positioning hole 213, and at this time the flipping mechanism can drive the fetal membrane support 21 to flip again.

[0054] In the above embodiment, preferably, the first sensor 6 is fixedly mounted on the membrane base plate 3 at one end of the membrane support 21 through the sensor fixing plate 7; the irradiation direction of the first sensor 6 is toward the welding part on the first membrane part or the second membrane part; a plurality of second sensors are respectively arranged on the membrane base plate 3 at both ends of the membrane support 21 and the two ends of the fixing part 1 in a symmetrical manner; during actual installation, a plurality of second sensors can also be arranged in a symmetrical manner around the fixing part 21 in pairs, and the plurality of second sensors are used to detect whether there are welding parts above the fixing part 1 and the first membrane part and the second membrane part. The first sensor 6 and the second sensor in this embodiment are both photoelectric sensors, wherein the second sensor can also be an infrared counter-radiation sensor.

[0055] In the above embodiment, preferably, the controller is a PLC. In actual installation, the first sensor 6 and the plurality of second sensors are electrically connected to the input end of the PLC, and the rack drive cylinder 41 and the positioning pin drive cylinder 52 are electrically connected to the output end of the PLC. The PLC shell controls the piston rods of the rack drive cylinder 41 and the positioning pin drive cylinder 52 to extend or retract according to the detection signals of the first sensor 6 and the plurality of second sensors, so as to realize the flipping and positioning of the fetal membrane support 21.

[0056] According to a hot riveting and welding common membrane flipping system provided by the utility model, it includes the above-mentioned hot riveting and welding common membrane flipping mechanism, and also includes a scanning gun and an MES system: wherein the scanning gun is used to identify the door panel information QR code on the welded part; the MES system is electrically connected to the scanning gun and is communicatively connected to the controller.

[0057] During actual work, the scanner can scan the door panel information QR code and transmit it to the MES system. The MES system decodes the QR code information and transmits it to the controller. When it is determined that the current welded part is a door panel with a sunshade, the controller determines whether the fetal membrane support 21 needs to be flipped based on the detection signals of the rack drive cylinder 41 and the first sensor 6. If necessary, the second sensor is used to determine whether there is a welded part on the current fetal membrane. If there is no welded part, the positioning pin drive cylinder 52 is controlled to retract. At this time, the rack drive cylinder 41 drives the fetal membrane support 21 to flip and switch the first fetal membrane part or the second fetal membrane part. After flipping into place, the positioning pin drive cylinder 52 is pushed out, and the fetal membrane support 21 is locked. At this time, the operator starts to place the welded part, and uses the first sensor to detect whether there is a sunshade on the placed welded part. If so, welding can be started. Otherwise, the equipment alarms and suspends welding after welding.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A common membrane turning mechanism for hot riveting welding, characterized in that: include: The fetal membrane is mounted on the fetal membrane bottom plate, and includes a fixing portion and a turning portion, wherein the fixing portion is the same portion of the fetal membrane with a sunshade and the fetal membrane without a sunshade, and the turning portion includes a fetal membrane support, wherein the top and bottom ends of the fetal membrane support are respectively provided with a first fetal membrane portion with a sunshade and a second fetal membrane portion without a sunshade; A turning mechanism with a rotating shaft, which is installed on the fetal membrane bottom plate, the middle part of the rotating shaft is fixedly connected to the fetal membrane support, and the fetal membrane support can be turned over by the turning mechanism to switch between the first fetal membrane part and the second fetal membrane part; A positioning pin is telescopically mounted on the fetal membrane bottom plate on one side of the fetal membrane support through a telescopic mechanism, and positioning holes cooperating with the positioning pin are respectively provided on both sides of the fetal membrane support; The sensor assembly includes a first sensor for detecting whether there is a sunshade on the welding parts on the first fetal membrane part and the second fetal membrane part, and a plurality of second sensors for detecting whether there is a welding part above the fetal membrane; A controller, wherein the first sensor and the plurality of the second sensors are electrically connected to input ends of the controller respectively, and the flipping mechanism and the telescopic mechanism are electrically connected to output ends of the controller respectively.

2. The common membrane turning mechanism for hot riveting welding according to claim 1 is characterized in that: The fetal membrane support is a rectangular frame structure; The two ends of the fetal membrane support are respectively fixedly connected to the rotating shaft, and the fetal membrane bottom plate is respectively installed with a rotating shaft support frame for supporting the rotating shaft corresponding to the two ends of the fetal membrane support, and the rotating shaft at one end passes through the rotating shaft support frame and is transmission-connected to the flipping mechanism; The positioning holes are provided on both sides of one end of the fetal membrane support close to the flipping mechanism, and the positioning pin is telescopically installed on the fetal membrane bottom plate at one end of the fetal membrane support away from the fixing part through the telescopic mechanism. When the fetal membrane support is flipped into place, the positioning pin is inserted into the positioning hole on the corresponding side; The first fetal membrane part and the second fetal membrane part are respectively installed at the top end and the bottom end of the fetal membrane support.

3. The common membrane turning mechanism for hot riveting welding according to claim 1 is characterized in that: The flipping mechanism includes a gear, a rack, a rack driving cylinder, a slide rail fixing seat, and a slide rail; The rack drive cylinder is installed on the fetal membrane bottom plate, the piston rod end of the rack drive cylinder is fixedly connected to one end of the rack, the bottom of the rack is slidably arranged on the slide rail, and the slide rail is installed on the fetal membrane bottom plate through the slide rail fixing seat; The gear is transmission-connected to the rotating shaft at one end of the fetal membrane support, and the lower part of the gear is meshed with the rack. The piston rod can push the rack to reciprocate through the rack-driving cylinder, and the rack-driving cylinder is also electrically connected to the output end of the controller.

4. The common membrane turning mechanism for hot riveting welding according to claim 1 is characterized in that: The telescopic mechanism comprises a positioning pin driving cylinder, and the positioning pin driving cylinder is electrically connected to the output end of the controller; The positioning pin driving cylinder is fixedly mounted on the fetal membrane bottom plate of the fetal membrane support away from the fixing part at one end through the cylinder fixing seat; The piston rod end of the positioning pin driving cylinder is fixedly connected to the positioning pin. When the fetal membrane support is flipped into place, the positioning pin can be inserted into the positioning hole on the corresponding side of the fetal membrane support through the positioning pin driving cylinder.

5. The common membrane turning mechanism for hot riveting welding according to claim 1 is characterized in that: The first sensor is fixedly mounted on the fetal membrane bottom plate at one end of the fetal membrane support through a sensor fixing plate; The irradiation direction of the first sensor is toward the welding part on the first fetal membrane part or the second fetal membrane part.

6. The common membrane turning mechanism for hot riveting welding according to claim 1 is characterized in that: A plurality of the second sensors are respectively arranged on the fetal membrane bottom plates at both ends of the fetal membrane support and at both ends of the fixing part in a symmetrical manner in pairs; The plurality of second sensors are used to detect whether there are welding parts above the fixing portion and the first and second fetal membrane portions.

7. The common membrane turning mechanism for hot riveting welding according to claim 1 is characterized in that: The flipping mechanism can drive the fetal membrane support to rotate and flip by ±180°.

8. The common membrane turning mechanism for hot riveting welding according to claim 1 is characterized in that: The controller is a PLC.

9. A hot riveting and welding common fetal membrane turning system, comprising the hot riveting and welding common fetal membrane turning mechanism according to any one of claims 1 to 8, characterized in that: Also includes: A scanner gun, which is used to identify the door panel information QR code on the welded part; An MES system is electrically connected to the scanning gun and is communicatively connected to the controller.

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