Shell assembling production line and shell assembling method

Abstract

The invention is suitable for the technical field of motor production equipment, and provides a shell assembling production line and a shell assembling method.The shell assembling production line comprises a rotary disc, a rotary disc driving device, a feeding detection module, a pressing module and a finished product detection module, and at least three shell assembling tools are annularly arranged on the rotary disc; the three shell assembling tools comprise flange positioning plates and shell positioning plates which are elastically connected, the flange positioning plates and the shell positioning plates are used for containing shell connecting flanges and shell workpieces correspondingly, the specifications of the workpieces and whether the workpieces are installed in place or not are detected through the feeding detection module, and the two workpieces are pressed together in an interference mode through the pressing module. Whether assembly is qualified or not is judged by measuring the height difference between the two pressed workpieces through the finished product detection module, and precise assembly and high-precision detection of the shell workpieces and the shell connecting flange are achieved through cooperative work of the rotary disc, the feeding detection module, the pressing module and the finished product detection module. And the production efficiency, the precision and the product quality are greatly improved.

Description

Technical Field

[0001] The present invention is applicable to the technical field of motor production equipment, and provides a housing assembly production line and a housing assembly method. Background Art

[0002] In the production and manufacturing of motor housing assemblies, it is necessary to accurately dock and press-fit the outer shell workpiece and the housing connection flange. Traditional methods mostly rely on manual operation or semi-automatic equipment, and there are the following problems. First, the limitations of manual operation make it difficult to control the docking accuracy between the outer shell workpiece and the housing connection flange, and problems such as misalignment and inclination are likely to occur, resulting in unstable assembly quality. At the same time, there are differences in the proficiency and operating habits of different operators, making it difficult to ensure the consistency of products in different batches and affecting the overall quality of products. Second, in traditional production, visual inspection or simple measuring tools are mostly used for detection, and high-precision and full-range quality inspection cannot be achieved, and potential defects are easily missed. Third, existing semi-automatic equipment usually can only complete some processes (such as loading or pressing), lacks an overall solution, still requires a large amount of manual intervention, and cannot achieve true fully automatic production. Summary of the Invention

[0003] Therefore, the present invention provides a housing assembly production line and a housing assembly method. Through the coordinated operation of a rotating turntable, a feeding and detection module, a pressing module, and a finished product detection module, accurate assembly and high-precision detection of the outer shell workpiece and the housing connection flange are realized, greatly improving production efficiency, precision, and product quality, while reducing labor costs and labor intensity.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A housing assembly production line, the aforementioned housing assembly includes an outer shell workpiece and a housing connection flange, and includes:

[0006] A rotating turntable and a turntable driving device, the turntable driving device can drive the rotating turntable to rotate. At least three housing assembly toolings are annularly arranged on the rotating turntable. The housing assembly tooling includes a flange positioning plate and an outer shell positioning plate that are spaced apart from top to bottom. A plurality of elastic connectors between plates are arranged between the flange positioning plate and the outer shell positioning plate. The flange positioning plate and the outer shell positioning plate are elastically connected through the plurality of elastic connectors between plates. The flange positioning plate is provided with a flange positioning groove adapted to the outer shape of the housing connection flange. The bottom of the flange positioning groove is provided with an outer shell through hole for the outer shell workpiece to pass through. The upper end surface of the outer shell positioning plate is provided with an outer shell mounting seat adapted to the inner side wall of the outer shell workpiece;

[0007] A feeding and detection module, including a flange recognition camera and a first height detector and a second height detector that are spaced apart vertically;

[0008] The pressing module includes a press equipment, and the press equipment is provided with a stamping shaft. A flange pressing block is fixedly arranged at one end of the stamping shaft facing the rotating turntable.

[0009] Driven by the rotation of the rotating turntable, the housing assembly tooling can sequentially pass through the feeding detection module and the pressing module.

[0010] Furthermore, several elastic connecting pieces at the bottom of the tooling are arranged between the lower end surface of the outer shell positioning plate and the upper end surface of the rotating turntable. The outer shell positioning plate and the rotating turntable are elastically connected through the elastic connecting pieces at the bottom of the tooling.

[0011] Furthermore, a supporting block at the bottom of the tooling is fixedly arranged on the lower end surface of the outer shell positioning plate. The rotating turntable is provided with a through hole for the supporting block at the bottom of the tooling to pass through below the outer shell positioning plate. The pressing module further includes a bearing platform, which is arranged below the flange pressing block and below the rotating turntable.

[0012] Furthermore, the elastic connecting piece between the plates is a spring, and a limiting and guiding column between the plates is arranged inside the elastic connecting piece between the plates. One end of the limiting and guiding column between the plates is fixedly connected to the outer shell positioning plate, and the limiting and guiding column between the plates is slidably sleeved with the flange positioning plate.

[0013] Furthermore, the elastic connecting piece at the bottom of the tooling is a spring, and a limiting and guiding column at the bottom of the tooling is arranged inside the elastic connecting piece at the bottom of the tooling. One end of the limiting and guiding column at the bottom of the tooling is fixedly connected to the outer shell positioning plate, and the limiting and guiding column at the bottom of the tooling is slidably sleeved with the rotating turntable.

[0014] Furthermore, a finished product detection module is further included. Driven by the rotation of the rotating turntable, the housing assembly tooling sequentially passes through the feeding detection module and the pressing module, and finally passes through the finished product detection module. The finished product detection module includes a jig lifting frame, and a finished product size inspection unit is drivingly connected to the jig lifting frame. The finished product size inspection unit includes a first height sensor and a second height sensor. The first height sensor is used to detect the distance from the upper end surface of the outer shell workpiece, and the second height sensor is used to detect the distance from the upper end surface of the housing connection flange.

[0015] Furthermore, the finished product size inspection unit further includes a sensor rotating device and a sensor mounting block. Both the first height sensor and the second height sensor are fixedly connected to the sensor mounting block. The sensor rotating device is drivingly connected to the sensor mounting block. The sensor rotating device is used to drive the sensor mounting block to rotate. Both the first height sensor and the second height sensor are eccentrically arranged with respect to the rotation axis of the sensor mounting block.

[0016] Meanwhile, the present invention also provides a method for assembling a housing using the above housing assembly production line, including the following steps:

[0017] S1. Loading and inspection step: First, on the housing assembly tooling located at the loading and inspection module, the outer shell workpiece is installed onto the outer shell mounting seat through the outer shell through-hole, and then the housing connection flange is installed onto the flange positioning groove. At this time, the flange identification camera can identify whether the installation positive and negative directions of the housing connection flange are qualified, and the first height detector and the second height detector can determine whether an outer shell workpiece is installed on the outer shell mounting seat and the type of the outer shell workpiece. After the inspection is correct, the housing assembly tooling moves to the pressing module through the rotation of the rotating turntable;

[0018] S2. Pressing step, the stamping shaft drives the flange pressing block to press downward on the housing assembly tooling. During the downward pressing process of the flange pressing block, the flange pressing block first contacts the outer flanging of the housing connection flange, and then the flange pressing block continues to press downward. During the downward pressing process, the outer shell positioning plate continuously approaches the rotating turntable until the tooling bottom support block on the lower end surface of the outer shell positioning plate fits together with the bearing table of the pressing module. At the same time, during the downward pressing process, the flange positioning plate continuously approaches the outer shell positioning plate until the downward pressing distance of the flange pressing block reaches the set value. During the approaching process, the outer shell workpiece passes upward through the outer shell through-hole and finally is in interference fit with the housing connection flange to form a housing assembly finished product;

[0019] S3. Finished product inspection step, the housing assembly tooling carrying the housing assembly finished product in step S2 moves to the finished product inspection module through the rotation of the rotating turntable. At this time, the first height induction head and the second height induction head of the finished product inspection module are respectively driven by the inspection tool lifting frame to approach the upper end surface of the outer shell workpiece and the upper end surface of the housing connection flange. After reaching the preset height, the distances between the first height induction head and the upper end surface of the outer shell workpiece and between the second height induction head and the upper end surface of the housing connection flange are respectively recorded. By comparing with the preset data, it can be judged whether the outer shell workpiece and the housing connection flange are installed in place;

[0020] S4. After the inspection in step S3 of the finished product inspection step, the operator unloads the housing assembly finished product from the housing assembly tooling for subsequent production.

[0021] Further, in step S3, the first height induction head and the second height induction head rotate multiple times under the action of the induction head rotation device to change positions. After each rotation and position change, a set of distances between the first height induction head and the upper end surface of the outer shell workpiece and between the second height induction head and the upper end surface of the housing connection flange are respectively recorded, and each set of data is compared with the preset data to improve the detection accuracy.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. Through the settings of the rotating turntable and the automated assembly tooling (such as feeding detection, pressing, and finished product detection), the present invention realizes the continuity and assembly line operation of the production of the housing assembly, reduces manual intervention, lowers the operation difficulty and human error, and significantly improves the reliability of the production process and the production efficiency.

[0024] 2. By using the feeding detection module and the finished product detection module, multi-directional detection is carried out on the installation state of the housing workpiece and the housing connection flange and the assembled finished product to ensure product accuracy and consistency and reduce the defective product rate.

[0025] 3. Through the design of the flange positioning groove, the housing mounting seat, and the elastic connecting piece and the limit guiding column, accurate positioning and pressing of the housing workpiece and the housing connection flange are realized, improving the assembly accuracy and the equipment stability.

[0026] 4. A bearing platform is arranged below the rotating turntable. During the pressing process of the housing workpiece and the housing connection flange, support is provided from below the housing positioning plate through the bearing platform, avoiding the rotating turntable directly bearing the downward pressure from the flange pressing block, reducing the design bearing requirement of the rotating turntable, and preventing the rotating turntable from being damaged after long-term bearing pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a housing assembly production line mentioned in the present invention;

[0028] Figure 2 It is a schematic structural diagram of the housing assembly tooling mentioned in the present invention;

[0029] Figure 3 It is a schematic structural layout diagram between the housing assembly tooling and the feeding detection module mentioned in the present invention;

[0030] Figure 4 It is a schematic structural layout diagram between the housing assembly tooling and the pressing module mentioned in the present invention;

[0031] Figure 5 It is a schematic structural layout diagram between the housing assembly tooling and the finished product detection module mentioned in the present invention.

[0032] In the figure:

[0033] 100. Rotating turntable;

[0034] 200. Turntable driving device;

[0035] 300, Shell assembly tooling, 310, Outer shell positioning plate, 311, Outer shell mounting seat, 312, Bottom support block of the tooling, 320, Flange positioning plate, 321, Through hole for the outer shell, 322, Flange positioning groove, 330, Elastic connecting piece between plates, 340, Elastic connecting piece at the bottom of the tooling;

[0036] 400, Loading and inspection module, 410, Flange identification camera, 420, First height detector, 430, Second height detector;

[0037] 500, Pressing module, 510, Stamping shaft, 520, Flange pressing block, 530, Bearing platform;

[0038] 600, Finished product inspection module, 610, Fixture lifting frame, 620, Induction head rotating device, 630, Induction head mounting block, 640, First height induction head, 650, Second height induction head;

[0039] 700, Shell assembly, 710, Outer shell workpiece, 720, Shell connecting flange. Detailed implementation mode

[0040] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0041] Embodiment, referring to the content of the attached Figure 1 In this embodiment, the present invention provides a shell assembly production line. The shell assembly 700 mentioned above includes an outer shell workpiece 710 and a shell connecting flange 720. The purpose of the shell assembly production line of the shell assembly 700 in the present invention is to pass the outer shell workpiece 710 through the hole in the middle of the shell connecting flange 720 and press-fit the two components together with interference to form the shell assembly 700. The shell assembly production line includes: a rotating turntable 100 and a turntable driving device 200, a loading and inspection module 400, a pressing module 500, and a finished product inspection module 600;

[0042] Among them, at least three shell assembly tooling 300 are annularly arranged on the rotary turntable 100. In this embodiment, in order to leave enough machining allowance, there are four shell assembly tooling 300 annularly on the rotary turntable 100. The turntable driving device 200 can drive the rotary turntable 100 to rotate. The turntable driving device 200 can adopt the form of a servo motor combined with a reducer to achieve precise control of the rotation angle, ensure that each shell assembly tooling 300 accurately stops at the designated position. At the same time, a positioning sensor can be set on the rotary turntable 100 to monitor the position of the turntable in real time, ensure the alignment of the shell assembly tooling 300 with each module. Driven by the rotary turntable 100, the shell assembly tooling 300 can move in a cycle in the order of passing through the feeding and detection module 400, the pressing module 500, and the finished product detection module 600 in sequence, as shown in the appendix Figure 2 As shown, the shell assembly tooling 300 includes a flange positioning plate 320 and a housing positioning plate 310 which are arranged at intervals from top to bottom. A plurality of inter-plate elastic connectors 330 are arranged between the flange positioning plate 320 and the housing positioning plate 310. The flange positioning plate 320 and the housing positioning plate 310 are elastically connected through a plurality of inter-plate elastic connectors 330. And between the lower end surface of the housing positioning plate 310 and the upper end surface of the rotary turntable 100, a plurality of tooling bottom elastic connectors 340 are arranged. The housing positioning plate 310 and the rotary turntable 100 are elastically connected through the tooling bottom elastic connectors 340. The inter-plate elastic connectors 330 and the tooling bottom elastic connectors 340 both adopt springs in this embodiment. A plate-interval limit guiding column is arranged inside the inter-plate elastic connector 330. One end of the plate-interval limit guiding column is fixedly connected to the housing positioning plate 310, and the plate-interval limit guiding column is slidably sleeved with the flange positioning plate 320. Similarly, a tooling bottom limit guiding column is arranged inside the tooling bottom elastic connector 340. One end of the tooling bottom limit guiding column is fixedly connected to the housing positioning plate 310, and the tooling bottom limit guiding column is slidably sleeved with the rotary turntable 100. The addition of the limit guiding column is mainly to ensure that the flange positioning plate 320 and the housing positioning plate 310 can still be accurately reset after multiple pressings. The flange positioning plate 320 is provided with a flange positioning groove 322 adapted to the outer shape of the shell connection flange 720. A housing through hole 321 for the housing workpiece 710 to pass through is arranged at the bottom of the flange positioning groove 322. An outer housing mounting seat 311 adapted to the inner side wall of the housing workpiece 710 is arranged on the upper end surface of the housing positioning plate 310. During the production process, the housing workpiece 710 is buckled downward on the outer housing mounting seat 311, the shell connection flange 720 is installed in the flange positioning groove 322, and then the flange positioning plate 320 and the housing positioning plate 310 are moved closer to each other through the pressing module 500. During this process, the housing workpiece 710 and the shell connection flange 720 are pressed together;

[0043] In the specific structures of the feeding and detection module 400, the pressing module 500, and the finished product detection module 600, as shown in the appendixFigure 3 As shown, the loading and detection module 400 includes a flange recognition camera 410, a first height detector 420 and a second height detector 430 which are arranged at an upper and lower interval. The flange recognition camera 410 adopts an industrial-grade high-definition camera and is built with an image processing algorithm. In actual use, the flange recognition camera 410 is arranged facing the flange positioning groove 322, and can recognize the installation direction of the housing connection flange 720 and judge whether it is qualified. The first height detector 420 and the second height detector 430 can adopt similar laser distance sensors, and the accuracy of this kind of distance sensor can reach ±0.1 mm. The first height detector 420 is used to judge whether a housing workpiece 710 is installed on the housing mounting seat 311, while the second height detector 430 judges the type of the housing workpiece 710 through the second point detection. The reason for this design is that the housing workpiece 710 in this embodiment has two height specifications. When the equipment is designed, the position of the first height detector 420 is set at the height where any housing workpiece 710 installed on the housing mounting seat 311 can be detected, while the position of the second height detector 430 is set at the height where the housing workpiece 710 with a higher size specification can be detected but the housing workpiece 710 with a lower size specification cannot be detected. In this way, the model of the housing workpiece 710 installed on the housing mounting seat 311 can be automatically judged during actual operation, so as to adjust the data of the subsequent pressing module 500. At the same time, in a further optimized solution, according to the same principle, a third height detector, a fourth height detector... can also be set to further expand the models of the housing workpiece 710 that can be detected; and the pressing module 500 includes a pressing machine device, such as attached Figure 4As shown in the figure, the press equipment is provided with a stamping shaft 510. At one end of the stamping shaft 510 facing the rotary turntable 100, a flange pressing block 520 is fixedly arranged. The stamping shaft 510 is hydraulically driven, and the pressure and stroke are adjustable. According to the specifications of different shell workpieces 710, the corresponding pressure and downward stroke are adjusted to complete the pressing of the shell assembly 700. At the same time, in order to prevent the downward pressure of the flange pressing block 520 from directly applying a load to the rotary turntable 100, a bearing platform 530 is also arranged below the flange pressing block 520 of the pressing module 500, and the bearing platform 530 is arranged below the rotary turntable 100. Correspondingly, a tooling bottom support block 312 is fixedly arranged on the lower end surface of the shell positioning plate 310. At the same time, a support block through hole for the tooling bottom support block 312 to pass through is arranged below the rotary turntable 100 where the shell positioning plate 310 is located. In this way, when the flange pressing block 520 presses towards the shell assembly tooling 300, the shell positioning plate 310 will move downward under force. At this time, the tooling bottom support block 312 will pass through the support block through hole of the rotary turntable 100, and finally the tooling bottom support block 312 will fit with the bearing platform 530. At this time, the bearing platform 530 will bear the downward pressure from the flange pressing block 520, rather than the rotary turntable 100. This can greatly reduce the design bearing requirement of the rotary turntable 100 and improve the durability of the equipment;

[0044] Finally, after the shell assembly tooling 300 is driven by the rotation of the rotary turntable 100 and passes through the feeding detection module 400 and the pressing module 500 in sequence, it finally passes through the finished product detection module 600, as shown in the appendix Figure 5As shown in the figure, the finished product inspection module 600 includes a fixture lifting frame 610. The fixture lifting frame 610 is drivingly connected to a finished product dimension inspection unit. The finished product dimension inspection unit includes a first height sensor 640 and a second height sensor 650. The first height sensor 640 and the second height sensor 650 adopt capacitive sensors. The first height sensor 640 is used to detect the distance from the upper end face of the housing workpiece 710, and the second height sensor 650 is used to detect the distance from the upper end face of the housing connection flange 720. In this way, the height difference between the housing workpiece 710 and the housing connection flange 720 can be accurately detected. At the same time, to ensure the comprehensiveness of the inspection, the finished product dimension inspection unit further includes a sensor rotation device 620 and a sensor mounting block 630. The first height sensor 640 and the second height sensor 650 are both fixedly connected to the sensor mounting block 630. The sensor rotation device 620 is drivingly connected to the sensor mounting block 630. The sensor rotation device 620 is used to drive the sensor mounting block 630 to rotate. The first height sensor 640 and the second height sensor 650 are both eccentrically arranged with respect to the rotation axis of the sensor mounting block 630. By driving the sensor mounting block 630 to rotate through the sensor rotation device 620, the first height sensor 640 and the second height sensor 650 can be driven to detect the height difference data of multiple groups of the housing workpiece 710 and the housing connection flange 720, making the inspection result more comprehensive.

[0045] At the same time, the present invention also provides a method for assembling a housing using the above-mentioned housing assembly production line, including the following steps:

[0046] S1. Feeding and inspection step: First, on the housing assembly fixture 300 at the feeding and inspection module 400, the housing workpiece 710 is installed on the housing mounting seat 311 through the housing through hole 321, and then the housing connection flange 720 is installed on the flange positioning groove 322. At this time, the flange identification camera 410 can identify whether the installation positive and negative directions of the housing connection flange 720 are qualified, and through the first height detector 420 and the second height detector 430, it can be determined whether the housing workpiece 710 is installed on the housing mounting seat 311 and the type of the housing workpiece 710. After the detection is correct, the housing assembly fixture 300 is moved to the pressing module 500 through the rotation of the rotating turntable 100;

[0047] S2. Pressing step: The stamping shaft 510 drives the flange pressing block 520 to press downward against the housing assembly tooling 300 below. During the downward pressing process of the flange pressing block 520, the flange pressing block 520 first contacts the outer flange of the housing connection flange 720, and then the flange pressing block 520 continues to press downward. During the downward pressing process, the outer housing positioning plate 310 continuously approaches the rotating turntable 100 until the tooling bottom support block 312 on the lower end surface of the outer housing positioning plate 310 fits together with the bearing platform 530 of the pressing module 500. At the same time, during the downward pressing process, the flange positioning plate 320 continuously approaches the outer housing positioning plate 310 until the downward pressing distance of the flange pressing block 520 reaches the set value. During the approaching process, the housing workpiece 710 passes upward through the housing through hole 321 and finally is in interference fit with the housing connection flange 720 to form the finished housing assembly 700;

[0048] S3. Finished product inspection step: The housing assembly tooling 300 carrying the finished housing assembly 700 in step S2 is moved to the finished product inspection module 600 through the rotation of the rotating turntable 100. At this time, the first height sensor 640 and the second height sensor 650 of the finished product inspection module 600 respectively approach the upper end surface of the housing workpiece 710 and the upper end surface of the housing connection flange 720 under the drive of the gauge lifting frame 610. After reaching the preset height, the distances between the first height sensor 640 and the upper end surface of the housing workpiece 710 and between the second height sensor 650 and the upper end surface of the housing connection flange 720 are respectively recorded. By comparing with the preset data, it can be judged whether the housing workpiece 710 and the housing connection flange 720 are properly installed. At the same time, the first height sensor 640 and the second height sensor 650 are rotated multiple times under the action of the sensor rotating device 620 to change positions. After each rotation and position change, a set of distances between the first height sensor 640 and the upper end surface of the housing workpiece 710 and between the second height sensor 650 and the upper end surface of the housing connection flange 720 are respectively recorded, and each set of data is compared with the preset data to improve the detection accuracy;

[0049] S4. After the inspection in step S3 of the finished product inspection, the operator unloads the finished housing assembly 700 from the housing assembly tooling 300 for subsequent production, and the empty housing assembly tooling 300 will return to the loading and inspection module 400 to prepare for the assembly operation of the next housing assembly 700.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention. The orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0051] The above are only the preferred embodiments of the present invention. Any person skilled in the art may modify the present invention by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present invention falls within the scope of protection required by the present invention.

Claims

1. A shell assembly production line, wherein the shell assembly comprises a shell workpiece and a shell connecting flange, characterized in that: include: A rotating turntable and a turntable driving device, wherein the turntable driving device can drive the rotating turntable to rotate, wherein at least three shell assembly tools are arranged in an annular manner on the rotating turntable, wherein the shell assembly tool comprises a flange positioning plate and a shell positioning plate spaced from top to bottom, wherein a plurality of inter-plate elastic connectors are arranged between the flange positioning plate and the shell positioning plate, wherein the flange positioning plate and the shell positioning plate are elastically connected via the plurality of inter-plate elastic connectors, wherein the flange positioning plate is provided with a flange positioning groove matched with the outer shape of the shell connection flange, wherein a shell through hole for the shell workpiece to pass through is provided at the bottom of the flange positioning groove, and a shell mounting seat matched with the inner side wall of the shell workpiece is provided on the upper end surface of the shell positioning plate; A feeding detection module, including a flange recognition camera and a first height detector and a second height detector spaced apart from each other; The pressing module comprises a pressing device, wherein the pressing device is provided with a pressing shaft, and a flange pressing block is fixedly provided at one end of the pressing shaft facing the rotating turntable; Driven by the rotation of the rotating turntable, the shell assembly tool can pass through the feeding detection module and the pressing module in sequence.

2. A housing assembly production line according to claim 1, characterized in that: A plurality of tooling bottom elastic connectors are arranged between the lower end surface of the housing positioning plate and the upper end surface of the rotating turntable, and the housing positioning plate and the rotating turntable are elastically connected through the tooling bottom elastic connectors.

3. A housing assembly production line according to claim 2, characterized in that: A tooling bottom support block is fixedly provided on the lower end surface of the shell positioning plate, and the rotating turntable is located below the shell positioning plate and is provided with a support block through hole for the tooling bottom support block to pass through. The pressing module also includes a pressure platform, which is arranged below the flange pressing block, and the pressure platform is arranged below the rotating turntable.

4. The shell assembly production line according to claim 3, characterized in that: The inter-plate elastic connector is a spring, and an inter-plate limiting guide column is arranged inside the inter-plate elastic connector. One end of the inter-plate limiting guide column is fixedly connected to the housing positioning plate, and the inter-plate limiting guide column is slidably sleeved with the flange positioning plate.

5. The shell assembly production line according to claim 4, characterized in that: The tooling bottom elastic connector is a spring, a tooling bottom limit guide column is arranged inside the tooling bottom elastic connector, one end of the tooling bottom limit guide column is fixedly connected to the housing positioning plate, and the tooling bottom limit guide column is slidably sleeved with the rotating turntable.

6. The shell assembly production line according to claim 5, characterized in that: It also includes a finished product detection module. The shell assembly tooling passes through the loading detection module and the pressing module in sequence under the rotation of the rotating turntable, and finally passes through the finished product detection module. The finished product detection module includes a gauge lifting frame, and the gauge lifting frame is driven and connected to a finished product size inspection unit. The finished product size inspection unit includes a first height sensing head and a second height sensing head. The first height sensing head is used to detect the distance between the first height sensing head and the upper end face of the shell workpiece, and the second height sensing head is used to detect the distance between the first height sensing head and the upper end face of the shell connecting flange.

7. The shell assembly production line according to claim 6, characterized in that: The finished product size inspection unit also includes an induction head rotating device and an induction head mounting block. The first height induction head and the second height induction head are fixedly connected to the induction head mounting block. The induction head rotating device is drivingly connected to the induction head mounting block. The induction head rotating device is used to drive the induction head mounting block to rotate. The first height induction head and the second height induction head are eccentrically arranged with respect to the rotating axis of the induction head mounting block.

8. A shell assembly method using the shell assembly production line according to claim 7, characterized in that: The steps include: S1. Loading inspection step: first, on the shell assembly tool located at the loading inspection module, install the shell workpiece on the shell mounting seat through the shell through hole, and then install the shell connecting flange on the flange positioning groove. At this time, the flange recognition camera can identify whether the installation positive and negative directions of the shell connecting flange are qualified, and the first height detector and the second height detector can be used to determine whether the shell workpiece is installed on the shell mounting seat and the type of the shell workpiece. After the detection is correct, the shell assembly tool is moved to the pressing module by rotating the rotating turntable; S2. Pressing step: the punching shaft drives the flange pressing block to press the shell assembly tooling below. During the pressing process of the flange pressing block, the flange pressing block first contacts the outer flange of the shell connecting flange, and then the flange pressing block continues to press down. During the pressing process, the shell positioning plate continues to approach the rotating turntable until the bottom support block of the tooling on the lower end face of the shell positioning plate is fitted with the pressure platform of the pressing module. At the same time, during the pressing process, the flange positioning plate continues to approach the shell positioning plate until the pressing distance of the flange pressing block reaches the set value. During the approaching process, the shell workpiece passes upward through the shell through hole and finally fits with the shell connecting flange through interference to become a finished shell assembly product. S3. Finished product inspection step, in step S2, the shell assembly tooling carrying the finished shell assembly is moved to the finished product inspection module by the rotation of the rotating turntable. At this time, the first height sensing head and the second height sensing head of the finished product inspection module are driven by the inspection fixture lifting frame to approach the upper end face of the shell workpiece and the upper end face of the shell connecting flange respectively. After reaching the preset height, the distance between the first height sensing head and the upper end face of the shell workpiece and the distance between the second height sensing head and the upper end face of the shell connecting flange are recorded respectively. By comparing with the preset data, it can be determined whether the shell workpiece and the shell connecting flange are installed in place; S4. After the finished product inspection step S3, the operator unloads the finished shell assembly from the shell assembly tooling for subsequent production.

9. A housing assembly method according to claim 8, characterized in that: In the S3 step, the first height sensing head and the second height sensing head are rotated and changed position multiple times by the sensing head rotating device. After each rotation and change of position, a set of distances between the first height sensing head and the upper end face of the shell workpiece and a set of distances between the second height sensing head and the upper end face of the shell connecting flange are recorded respectively. Each set of data is compared with the preset data to improve the detection accuracy.

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