Shell pre-tightening device for screw assembly of controller

Abstract

The embodiment of the utility model provides a shell pre-tightening device for assembling a screw of a controller, which comprises a base, and a fixed table is arranged on the base through a plurality of supporting columns and is parallel to the base; the product mold bottom support is arranged on the fixed table; the product mold pressing plate is arranged on the side, away from the fixing table, of the product mold bottom support. The first driving mechanism is arranged on the base, and the telescopic end of the first driving mechanism stretches in the first direction. The second driving mechanisms are symmetrically arranged on the two opposite sides of the fixing table in the second direction, each second driving mechanism is connected with the telescopic end of the corresponding first driving mechanism, and the telescopic ends of the second driving mechanisms stretch out and draw back in the third direction; a mold pressing rod is arranged at the end, away from the base, of each second driving mechanism, each mold pressing rod extends in the second direction, and in the third direction, the orthographic projection of the end, away from the second driving mechanism, of each mold pressing rod is located on the edge of the first side face, away from the product mold bottom support, of the product mold pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of controller assembly, and more particularly, to a housing pre-tightening device for controller screw assembly. Background Art

[0002] With the gradual popularization and development of automated production lines, some problems related to products with screw installation requirements have emerged. Manual screw driving is slow and the consistency of screw driving is poor. It is easy to miss screws or drive them inappropriately, resulting in high quality risks and low production efficiency. Correspondingly, production costs will increase. Therefore, the need to achieve automatic screw installation is imminent. Among them, for the screw installation process of the controller housing to achieve an automatic production mode, it is necessary to automatically fix the controller housing required for screw installation before the equipment drives the screws, in order to facilitate the subsequent automatic screw driving process. However, in the prior art, there is no device for automatically fixing the controller housing before screwing, so there is an urgent need for a device for automatically fixing the housing before controller screw assembly. Summary of the Utility Model

[0003] This application provides a housing pre-tightening device for controller screw assembly, which realizes the pressing of the controller housing and keeps the pressing height consistent in the automatic screw driving process, solves the problem that there is no device for automatically fixing the controller housing before screwing in the prior art, and facilitates the subsequent automatic screw driving process.

[0004] According to an embodiment of the present application, there is provided a housing pre-tightening device for controller screw assembly, including:

[0005] A base;

[0006] A fixing table, which is installed on the base through a plurality of support columns and is arranged parallel to the base;

[0007] A product mold bottom tray, which is arranged on the fixing table;

[0008] A product mold pressing plate, which is arranged on the side of the product mold bottom tray away from the fixing table;

[0009] A first driving mechanism, which is arranged on the base and its telescopic end telescopically moves along a first direction;

[0010] A plurality of second driving mechanisms, the number of the second driving mechanisms is even, the plurality of second driving mechanisms are symmetrically arranged on the opposite sides of the fixing table along a second direction, and each second driving mechanism is respectively connected to the telescopic end of the first driving mechanism, and the telescopic end of the second driving mechanism telescopically moves along a third direction;

[0011] Multiple die pressing rods, each of which is provided with a die pressing rod at one end of the second driving mechanism away from the base. Each die pressing rod extends along the second direction, and in the third direction, the orthographic projections of the ends of each die pressing rod away from the second driving mechanism are respectively located at the edges of the first side of the product die pressing plate away from the product die base;

[0012] When the housing pre-tightening device pre-tightens and fixes the controller, the controller is arranged in the product die base, and the product die pressing plate is buckled on the housing end face of the controller away from the product die base. The first driving mechanism drives each second driving mechanism and the die pressing rod thereon to move along the first direction to a target position. Each second driving mechanism drives a die pressing rod to move along the third direction respectively, so that the multiple die pressing rods press and fix the product die pressing plate, and further tightly lock the housing of the controller and the product die base;

[0013] Wherein, the first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0014] In some embodiments of the present application, the first driving mechanism includes a moving cylinder, a fixed bracket, a slide rail, a slider and a connecting rod. The moving cylinder is arranged in the middle of the base along the second direction through the fixed bracket, and the telescopic end of the moving cylinder telescopically moves along the first direction. One slide rail is respectively arranged at the opposite ends of the base along the second direction, and each slide rail extends along the first direction. A slider is respectively slidably arranged on each slide rail. The two sliders are symmetrically arranged, and the end faces of the two sliders away from the slide rail are respectively connected to the two ends of the connecting rod. The telescopic end of the moving cylinder is connected to the middle of the connecting rod. When the moving cylinder works, the telescopic end of the moving cylinder drives the connecting rod to move along the first direction, and further drives the two sliders connected to the connecting rod to move on the slide rail.

[0015] In some embodiments of the present application, the number of the second driving mechanisms is two. Each second driving mechanism respectively includes a pressing cylinder and a support rod. One ends of the two support rods are respectively connected to the two ends of the side of the connecting rod away from the slider, and in the third direction, the orthographic projection of the support rod is located on the slider. The pressing cylinder is arranged at the other end of the support rod, and the telescopic end of the pressing cylinder telescopically moves along the third direction. One end of the die pressing rod is connected to the telescopic end of the pressing cylinder.

[0016] In some embodiments of the present application, the first driving mechanism further includes a limiting and buffering structure, which includes a limiting and buffering block, a support frame, and a gasket. In the first direction, a support frame is respectively arranged on one side of each slide rail close to the fixed bracket. The limiting and buffering block is arranged on the side of the support frame close to the slide rail. The limiting and buffering block extends along the first direction, and the gasket is arranged on the end face of the limiting and buffering block far from the support frame. In the third direction, the setting height of the limiting and buffering block corresponds to the setting height of the connecting rod, and the limiting and buffering block limits the connecting rod and the slider connected to the connecting rod.

[0017] In some embodiments of the present application, the product mold bottom support includes a bottom support main body and a limiting connecting plate. The bottom support main body includes a profiling fixing block, and the controller is fixed in the profiling fixing block. The bottom support main body is fixedly installed on the limiting connecting plate. The limiting connecting plate is arranged on the fixed table, and the limiting connecting plate and the fixed table are positioned by a plurality of positioning pins.

[0018] In some embodiments of the present application, the shape and size of the limiting connecting plate match the shape and size of the fixed table. A locking and fixing structure is respectively arranged in the middle of the opposite two sides of the fixed table along the first direction. The limiting connecting plate is fixedly installed on the fixed table through the two locking and fixing structures.

[0019] In some embodiments of the present application, the locking and fixing structure includes a support plate and a locking pin. A support plate is respectively fixedly arranged in the middle of the opposite two sides of the fixed table along the first direction. The locking pin is arranged on the support plate. A fixing hole is respectively arranged in the middle of the opposite two sides of the limiting connecting plate along the first direction. The fixing hole matches the locking pin, and the product mold bottom support is fixedly connected to the fixed table by the locking pin being fixedly inserted into the fixing hole.

[0020] In some embodiments of the present application, the product mold pressing plate includes a pressing plate main body, two connecting frames, and two hinges. The two connecting frames are symmetrically arranged at one edge of the limiting connecting plate along the first direction. A hinge is respectively arranged at one end of each connecting frame far from the limiting connecting plate. The pressing plate main body is connected to the connecting frame through the hinge.

[0021] In some embodiments of the present application, bottom support handles are respectively arranged on the opposite two sides of the limiting connecting plate along the second direction. A pressing plate handle is arranged on the side of the pressing plate main body far from the connecting frame in the first direction.

[0022] In some embodiments of the present application, the shape of the support rod is a U-shaped structure, and the opening of the U-shaped structure faces the side of the base handle.

[0023] The beneficial effects of the embodiments of the present application are as follows:

[0024] It can realize the automatic production mode of the screw locking process, automatically compress the controller housing, and accurately position the product to the screw driving position, ensuring the consistency of positions in all directions, so as to improve the subsequent screw driving speed, ensure consistent working hours and stable production capacity of the production line, improve production efficiency, and the housing pre-tightening device can achieve rapid model change according to different product models, with high model change efficiency, and can achieve the purpose of rapid model change to adapt to the production of different specifications of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic structural diagram of a housing pre-tightening device for controller screw assembly provided by an embodiment of the present application;

[0027] Figure 2 It is an assembled top view of the base, the first driving mechanism, the second driving mechanism and the die pressing rod in a housing pre-tightening device for controller screw assembly provided by an embodiment of the present application;

[0028] Figure 3 It is an assembled side view of the base, the first driving mechanism, the second driving mechanism and the die pressing rod in a housing pre-tightening device for controller screw assembly provided by an embodiment of the present application;

[0029] Figure 4 It is a top view of the fixed table in a housing pre-tightening device for controller screw assembly provided by an embodiment of the present application;

[0030] Description of the reference numerals: 1 is the base, 2 is the fixing table, 21 is the positioning pin, 22 is the locking and fixing structure, 221 is the support plate, 222 is the locking pin, 3 is the bottom support of the product mold, 31 is the main body of the bottom support, 311 is the profiling fixing block, 32 is the limiting connecting plate, 33 is the handle of the bottom support, 4 is the pressing plate of the product mold, 41 is the main body of the pressing plate, 42 is the connecting frame, 43 is the hinge, 44 is the handle of the pressing plate, 45 is the nail hole, 5 is the first driving mechanism, 51 is the moving cylinder, 511 is the telescopic end of the moving cylinder 51, 52 is the fixing bracket, 53 is the slide rail, 54 is the slider, 55 is the connecting rod, 551 is the cross bar, 552 is the L-shaped rod, 56 is the limiting and buffering structure, 561 is the limiting and buffering block, 562 is the support frame, 563 is the gasket, 6 is the second driving mechanism, 61 is the pressing cylinder, 611 is the telescopic end of the pressing cylinder 61, 62 is the support rod, 7 is the mold pressing rod, 71 is the pressing member, and 8 is the support column. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that the terms "including" and "having" and any variations thereof in the embodiments of the present application and the accompanying drawings are intended to cover non-exclusive inclusion. For example, a series of structures are included, which are not limited to the listed structures, but optionally further include structures not listed, or optionally further include other components inherent to these structures.

[0033] The embodiments of the present application disclose a housing pre-tightening device for controller screw assembly, which realizes the pressing of the controller housing and keeps the pressing height consistent in the automatic screw driving process, facilitating the subsequent automatic screw driving process. The following will be described in detail respectively.

[0034] Figure 1 Fig. shows a housing pre-tightening device for controller screw assembly provided according to an embodiment of the present application. As Figure 1As shown in the figure, the housing pre-tightening device mainly includes: a base 1, a fixed platform 2, a product mold bottom support 3, a product mold pressing plate 4, a first driving mechanism 5, a plurality of second driving mechanisms 6, and a plurality of mold pressing rods 7. Among them, the base 1 and the fixed platform 2 are the fixed installation platforms for other components in the housing pre-tightening device. The first driving mechanism 5 and the plurality of second driving mechanisms 6 are installed on the base 1, and the product mold bottom support 3 and the product mold pressing plate 4 are installed on the fixed platform 2. The controller that needs to be pre-tightened and fixed is clamped in the product mold bottom support 3. The mold pressing rods 7 are driven by the first driving mechanism 5 and the second driving mechanisms 6 to move in a directional and positioning manner, and press against the product mold pressing plate 4, so that the product mold pressing plate 4 presses and locks the housing of the controller and the product mold bottom support 3.

[0035] Specifically, as Figure 1 shown, the base 1 and the fixed platform 2 serve as the fixed installation platforms for other components in the housing pre-tightening device. The fixed platform 2 is installed on the base 1 through a plurality of support columns 8, and the fixed platform 2 is arranged parallel to the base 1. In a specific implementation process, both the base 1 and the fixed platform 2 are of a flat plate structure. Four support columns 8 are arranged between the base 1 and the fixed platform 2. The first driving mechanism 5 is arranged between the base 1 and the fixed platform 2 and between the four support columns 8. The plurality of second driving mechanisms 6 are all arranged outside the four support columns 8 and on both sides of the fixed platform 2. The product mold bottom support 3 and the product mold pressing plate 4 are arranged on the fixed platform 2.

[0036] As Figure 1 shown, the product mold bottom support 3 and the product mold pressing plate 4 are the main structures for pre-tightening and fixing the controller in the housing pre-tightening device. The product mold bottom support 3 is arranged on the fixed platform 2, and the product mold pressing plate 4 is arranged on the side of the product mold bottom support 3 away from the fixed platform 2. The controller is clamped in the product mold bottom support 3, and the product mold pressing plate 4 presses and locks the controller in the product mold bottom support 3, so as to realize the pre-tightening and fixing of the controller, facilitating the subsequent automatic screw driving process of the controller.

[0037] As Figure 1As shown, multiple die pressing rods 7 are used to press and fix the product die pressing plate 4, so as to realize the pressing and locking of the controller in the product die bottom support 3 by the product die pressing plate 4. The first driving mechanism 5 and the second driving mechanism 6 are used as the driving components of the housing pre-tightening device and are connected to the die pressing rods 7 to realize the directional positioning movement of the die pressing rods 7 and ensure the stability of the pressing and fixing of the product die pressing plate 4 by the die pressing rods 7. Specifically, the first driving mechanism 5 is arranged on the base 1, and the telescopic end 511 of the first driving mechanism 5 telescopically moves along the first direction. The housing pre-tightening device is provided with multiple second driving mechanisms 6, and the number of the second driving mechanisms 6 is an even number. The multiple second driving mechanisms 6 are symmetrically arranged on the opposite sides of the fixed table 2 along the second direction. At the same time, each second driving mechanism 6 is respectively connected to the telescopic end 511 of the first driving mechanism 5, and the telescopic end 611 of the second driving mechanism 6 telescopically moves along the third direction. One die pressing rod 7 is arranged at one end of each second driving mechanism 6 away from the base 1. Each die pressing rod 7 extends along the second direction, and in the third direction, the orthographic projections of one end of each die pressing rod 7 away from the second driving mechanism 6 are respectively located at the edges of the first side surface of the product die pressing plate 4 away from the product die bottom support 3. Thus, the die pressing rod 7 realizes the reciprocating movement along the first direction through the first driving mechanism 5 and realizes the reciprocating movement along the third direction through the second driving mechanism 6. In a specific implementation process, a pressing member 71 is respectively arranged on each die pressing rod 7 to intelligently control the pressing strength on the product die pressing plate 4. For example, the pressing member 71 can be designed as a pressure sensor, so as to control the pressing strength borne by the product die pressing plate 4 and the controller housing by setting the pressure of the die pressing rod 7 on the product die pressing plate 4.

[0038] As Figure 1 shown, when the housing pre-tightening device pre-tightens and fixes the controller, the controller is arranged in the product die bottom support 3, and the product die pressing plate 4 is buckled on the housing end surface of the controller away from the product die bottom support 3. The first driving mechanism 5 drives each second driving mechanism 6 and the die pressing rod 7 thereon to move along the first direction to the target position. Each second driving mechanism 6 drives a die pressing rod 7 to move along the third direction respectively, so that the multiple die pressing rods 7 press and fix the product die pressing plate 4, and further press and lock the housing of the controller and the product die bottom support 3.

[0039] It should be noted that in the embodiment of the present application, the first direction, the second direction and the third direction are perpendicular to each other in pairs, but the "perpendicular" here is not absolutely perpendicular and can be 90°±10°. Similarly, the "parallel" in the present application is not absolutely parallel and can be 180°±10°.

[0040] In some specific embodiments, such as Figure 1 and Figure 2As shown, the first driving mechanism 5 includes a moving cylinder 51, a fixed bracket 52, a slide rail 53, a slider 54, and a connecting rod 55. The moving cylinder 51 is arranged in the middle of the base 1 along the second direction through the fixed bracket 52, and the telescopic end 511 of the moving cylinder 51 telescopically moves along the first direction. A slide rail 53 is respectively arranged at the opposite ends of the base 1 along the second direction, and each slide rail 53 extends along the first direction. A slider 54 is slidably arranged on each slide rail 53. The two sliders 54 are symmetrically arranged, and the end faces of the two sliders 54 away from the slide rail 53 are respectively connected to the two ends of the connecting rod 55. The telescopic end 511 of the moving cylinder 51 is connected to the middle of the connecting rod 55. When the moving cylinder 51 works, the telescopic end 511 of the moving cylinder 51 drives the connecting rod 55 to move along the first direction, and further drives the two sliders 54 connected to the connecting rod 55 to move on the slide rail 53. In a specific implementation process, the connecting rod 55 includes a cross bar 551 and two L-shaped rods 552. The telescopic end 511 of the moving cylinder 51 is connected to the middle end of the cross bar 551. The two L-shaped rods 552 are symmetrically arranged, and the two ends of each L-shaped rod 552 are respectively connected to the cross bar 551 and the slider 54. The end of the L-shaped rod 552 connected to the cross bar 551 is perpendicular to the cross bar 551.

[0041] Further, as Figure 1 、 Figure 2 and Figure 3 shown, the number of the second driving mechanisms 6 is two. Each second driving mechanism 6 respectively includes a pressing cylinder 61 and a support rod 62. One ends of the two support rods 62 are respectively connected to the two ends of the side surface of the connecting rod 55 away from the slider 54. The pressing cylinder 61 is arranged at the other end of the support rod 62, and the telescopic end 611 of the pressing cylinder 61 telescopically moves along the third direction. One end of the die pressing rod 7 is connected to the telescopic end 611 of the pressing cylinder 61. When the pressing cylinder 61 works, the telescopic end 611 of the pressing cylinder 61 drives the die pressing rod 7 to move along the third direction. In addition, in the third direction, the orthographic projection of the support rod 62 is located on the slider 54, so as to ensure that the support rod 62 and the pressing cylinder 61 thereon can move smoothly when the moving cylinder 51 works.

[0042] In some other specific embodiments, as Figure 1 、 Figure 2 and Figure 3As shown, the first driving mechanism 5 further includes a limit buffer structure 56 for limiting the slider 54 on the slide rail 53. Specifically, the limit buffer structure 56 includes a limit buffer block 561, a support frame 562, and a gasket 563. In the first direction, a support frame 562 is respectively provided on one side of each slide rail 53 close to the fixed bracket 52. A limit buffer block 561 is provided on the side of the support frame 562 close to the slide rail 53. The limit buffer block 561 extends along the first direction, and a gasket 563 is provided on the end face of the limit buffer block 561 away from the support frame 562. In the third direction, the installation height of the limit buffer block 561 corresponds to the installation height of the connecting rod 55. The limit buffer block 561 limits the connecting rod 55 and the slider 54 connected to the connecting rod 55. In a specific implementation process, the limit buffer block 561 can be threadedly connected to the support frame 562.

[0043] In the embodiment of the present application, as Figure 1 shown, in the first direction, the connecting rod 55 is arranged between the four support columns 8, and in the second direction, the two support columns 8 away from the moving cylinder 51 are arranged between the two slide rails 53. Therefore, when the moving cylinder 51 works, the slider 54 on the slide rail 53 cannot break away from the slide rail 53 at the end away from the moving cylinder 51. This structural design plays a role in limiting the slider 54 at one end of the slide rail 53. The design of the limit buffer structure 56 plays a role in limiting the slider 54 at the other end of the slide rail 53 and can also buffer the connecting rod 55 and the slider 54. In addition, in a specific implementation process, the stroke of the telescopic end 511 of the moving cylinder 51 can also be set to limit the slider 54 to ensure that the slider 54 always slides on the slide rail 53 and avoid it from breaking away from the slide rail 53.

[0044] In addition, in a specific implementation process, as Figure 2 shown, a first protruding plate is provided in the middle of one end of the base 1 along the first direction. The shape and size of the first protruding plate match the shape and size of the fixed bracket 52 and are used to fixedly install the fixed bracket 52. In addition, a second protruding plate is respectively provided at the opposite ends of the base 1 along the second direction. The length of the second protruding plate matches the set length of the slide rail 53 and the limit buffer structure 56. The slide rail 53 and the limit buffer structure 56 are arranged on the second protruding plate. Through the setting of the first protruding plate and the second protruding plate, the base 1 minimizes the overall occupied space as much as possible and ensures the strength and stiffness of the base 1.

[0045] In some other specific embodiments, as Figure 1As shown, the bottom support 3 of the product mold includes a limit connecting plate 32 and a bottom support main body 31 provided on the limit connecting plate 32. Among them, the controller is fixed in the profiling fixing block 311. The bottom support main body 31 includes a profiling fixing block 311, which is composed of multiple profiling blocks. The inner contours of the multiple profiling blocks respectively correspond to the outer contours of each part of the controller's housing, so that the bottom support main body 31 for clamping the controller is formed by the multiple profiling blocks. Combining with Figure 4 As shown, the limit connecting plate 32 is positioned on the fixed table 2 through multiple positioning pins 21, so as to integrally install the bottom support 3 of the product mold on the fixed table 2.

[0046] Furthermore, as Figure 1 、 Figure 4 shown, the shape and size of the limit connecting plate 32 match the shape and size of the fixed table 2. A locking and fixing structure 22 is respectively provided in the middle of the opposite two sides of the fixed table 2 along the first direction. The limit connecting plate 32 is fixedly installed on the fixed table 2 through the two locking and fixing structures 22, so as to integrally fix the bottom support 3 of the product mold on the fixed table 2. Specifically, the locking and fixing structure 22 includes a support plate 221 and a locking pin 222. A support plate 221 is respectively fixedly provided in the middle of the opposite two sides of the fixed table 2 along the first direction. The locking pin 222 is arranged on the support plate 221. A fixing hole (not shown in the figure) is respectively provided in the middle of the opposite two sides of the limit connecting plate 32 along the first direction. The fixing hole matches the locking pin 222. The product mold bottom support 3 is fixedly connected to the fixed table 2 by the locking pin 222 being fixedly inserted into the fixing hole. In the specific implementation process, the locking pin 222 is mainly composed of a spring, a rotating head, and a flat screwdriver head connected to the rotating head. The fixing hole is composed of a rectangular through groove and a circular groove connected in sequence. The rectangular through groove is arranged on the outer side surface of the limit connecting plate 32. The circular groove is far from the outer side surface of the limit connecting plate 32. The shape and size of the rectangular through groove match the shape and size of the flat screwdriver head. The two ends of the spring are respectively connected to the flat screwdriver head and the support plate 221. The flat screwdriver head is inserted into the circular groove through the rectangular through groove, and by rotating the rotating head connected thereto, the flat screwdriver head rotates 90° in the circular groove. The setting direction of the flat screwdriver head is perpendicular to the setting direction of the rectangular through groove. Furthermore, the flat screwdriver head is clamped in the circular groove, and the product mold bottom support 3 is fixed on the fixed table 2 through the locking and fixing structure 22. At this time, the spring is in a compressed state. When the rotating head is rotated so that the setting direction of the flat screwdriver head is parallel to the setting direction of the rectangular through groove, under the action of the spring, the flat screwdriver head pops out of the circular groove and the rectangular through groove, separating the product mold bottom support 3 from the fixed table 2. Thus, the product mold bottom support 3 and the fixed table 2 are quickly fixed and installed and disassembled through the locking and fixing structure 22.

[0047] In addition, as Figure 1As shown, the product mold pressing plate 4 includes a pressing plate main body 41, two connecting frames 42 and two hinges 43. Among them, the two connecting frames 42 are symmetrically arranged at one edge of the limit connecting plate 32 along the first direction. One hinge 43 is respectively arranged at one end of each connecting frame 42 far away from the limit connecting plate 32. The pressing plate main body 41 is connected to the connecting frame 42 through the hinge 43. The height of the connecting frame 42 matches the height of the controller arranged in the product mold bottom tray 3 to ensure that the pressing plate main body 41 can press the shell of the controller and keep the pressing height consistent. At the same time, a plurality of nail holes 45 are arranged on the pressing plate main body 41 to facilitate the subsequent automatic screw driving process of the controller.

[0048] In the specific implementation process, as Figure 1 shown, the housing pre-tightening device is also provided with a bottom tray handle 33 and a pressing plate handle 44. Among them, the bottom tray handles 33 are respectively arranged on the opposite sides of the limit connecting plate 32 along the second direction to facilitate the disassembly and installation of the product mold bottom tray 3. The pressing plate handle 44 is arranged on the side of the pressing plate main body 41 far away from the connecting frame 42 in the first direction to facilitate the buckling and lifting of the pressing plate main body 41 in the product mold pressing plate 4. Further, the shape of the support rod 62 is a U-shaped structure, and the opening of the U-shaped structure faces the side of the bottom tray handle 33 to avoid interference between the bottom tray handle 33 and the support rod 62 and minimize the overall weight of the housing pre-tightening device as much as possible.

[0049] The above introduced the various components of the housing pre-tightening device for controller screw assembly provided in this embodiment and their connection relationships. Next, in combination with Figure 1 – Figure 4 , the complete structure and working principle of the housing pre-tightening device for controller screw assembly will be described in detail.

[0050] The operator can select the product mold base 3 corresponding to the product model according to the model, and place it on the fixing table 2 through the base handles 33 on both sides. During this process, the product mold base 3 and the fixing table 2 are positioned by two positioning pins 21. After that, insert the flat screwdriver head of the locking pin 222 into the circular groove, and lock the product mold base 3 on the fixing table 2 by rotating the rotating head 90°. Place the controller to be pre-tightened into the product mold base 3, and buckle the pressing plate body 41 of the product mold pressing plate 4 on the upper surface of the controller housing. Then start the driving device of the housing pre-tightening device, the moving cylinder 51 starts to operate, drives the connecting rod 55 and the slider 54 connected thereto to move along the direction of the slide rail 53, thereby driving the second driving mechanism 6 and the mold pressing rod 7 thereon to move in the first direction to the first target position, that is, the pressing position of the mold pressing rod 7. Then, the pressing cylinder 61 starts to operate, drives the mold pressing rod 7 to move in the third direction towards the direction close to the product mold pressing plate 4, and performs a downward pressing action on the upper surface of the pressing plate body 41. After pressing, the jig completes all the pre-pressing actions, realizing the automatic production mode of the screw locking process, facilitating the intelligent execution of the subsequent automatic screw driving operation.

[0051] In summary, the present application discloses a housing pre-tightening device for the screw assembly of a controller, which can realize the automatic production mode of the screw locking process, automatically press the controller housing, and accurately position the product to the screw driving position, ensuring the consistency of the positions in all directions, improving the subsequent screw driving speed, ensuring the consistency of working hours and the stable production capacity of the production line, improving production efficiency, and the housing pre-tightening device can achieve rapid model change according to different product models, with high model change efficiency, and can achieve the purpose of rapid model change to adapt to the production of different specifications of products.

[0052] Those of ordinary skill in the art can understand that the drawings are only schematic diagrams of an embodiment, and the components in the drawings are not necessarily essential for implementing the present invention. It should also be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0053] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, in the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0054] Finally, it should be noted that the above embodiments are only specific embodiments of the present utility model, which are used to illustrate the technical solutions of the present utility model, rather than to limit it. The protection scope of the present utility model is not limited thereto. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present utility model can still modify the technical solutions recorded in the foregoing embodiments or can easily conceive of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model, and should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope defined by the claims.

Claims

1. A housing pre-tightening device for controller screw assembly, characterized in that: include: Base; A fixed platform, which is mounted on the base through a plurality of support columns and is arranged parallel to the base; A product mold base, the product mold base is arranged on the fixed platform; A product mold pressing plate, arranged on a side of the product mold base away from the fixing platform; A first driving mechanism, disposed on the base, and having a telescopic end that telescopes along a first direction; A plurality of second driving mechanisms, wherein the number of the second driving mechanisms is an even number, the plurality of the second driving mechanisms are symmetrically arranged on opposite sides of the fixed platform along the second direction, and each of the second driving mechanisms is respectively connected to the telescopic end of the first driving mechanism, and the telescopic end of the second driving mechanism is telescopic along the third direction; A plurality of mold pressing rods, each of the second driving mechanisms is provided with a mold pressing rod at one end away from the base, each of the mold pressing rods is extended along the second direction, and in the third direction, the orthographic projection of the end of each mold pressing rod away from the second driving mechanism is respectively located at the first side edge of the product mold pressing plate away from the product mold base; When the housing pre-tightening device pre-tightens and fixes the controller, the controller is arranged in the product mold base, and the product mold pressing plate is buckled on the housing end surface of the controller away from the product mold base, the first driving mechanism drives each of the second driving mechanisms and the mold pressing rods thereon to move along the first direction to the target position, and each of the second driving mechanisms respectively drives one of the mold pressing rods to move along the third direction, so that the multiple mold pressing rods press and fix the product mold pressing plate, thereby pressing and locking the housing of the controller and the product mold base; The first direction, the second direction and the third direction are perpendicular to each other.

2. The housing pre-tightening device for controller screw assembly according to claim 1, characterized in that: The first driving mechanism includes a moving cylinder, a fixed bracket, a slide rail, a slider, and a connecting rod. The moving cylinder is arranged at the middle part of the base along the second direction through the fixed bracket, and the telescopic end of the moving cylinder is telescopic along the first direction. The base is respectively provided with a slide rail at two opposite ends along the second direction, and each of the slide rails is extended along the first direction. A slider is slidably provided on each of the slide rails. The two sliders are symmetrically arranged, and the end surfaces of the two sliders away from the slide rails are respectively connected to the two ends of the connecting rod. The telescopic end of the moving cylinder is connected to the middle part of the connecting rod. When the moving cylinder is working, the telescopic end of the moving cylinder drives the connecting rod to move along the first direction, thereby driving the two sliders connected to the connecting rod to move on the slide rail.

3. The housing pre-tightening device for controller screw assembly according to claim 2, characterized in that: There are two second driving mechanisms, and each of the second driving mechanisms includes a clamping cylinder and a support rod. One end of the two support rods is respectively connected to the two ends of the side of the connecting rod away from the slider, and in the third direction, the positive projection of the support rod is located on the slider. The clamping cylinder is arranged at the other end of the support rod, and the telescopic end of the clamping cylinder is telescopic along the third direction, and one end of the mold pressure rod is connected to the telescopic end of the clamping cylinder.

4. The housing pre-tightening device for controller screw assembly according to claim 2, characterized in that: The first driving mechanism also includes a limit buffer structure, which includes a limit buffer block, a support frame, and a gasket. In the first direction, each of the slide rails is provided with a support frame on one side close to the fixed bracket, and the limit buffer block is provided on the side of the support frame close to the slide rail. The limit buffer block extends along the first direction, and the gasket is provided on the end surface of the limit buffer block away from the support frame. In the third direction, the setting height of the limit buffer block corresponds to the setting height of the connecting rod, and the limit buffer block limits the connecting rod and the sliding block connected to the connecting rod.

5. The housing pre-tightening device for controller screw assembly according to claim 3, characterized in that: The product mold base includes a base body and a limiting connecting plate. The base body includes a contour fixing block. The controller is fixed in the contour fixing block. The base body is fixedly installed on the limiting connecting plate. The limiting connecting plate is arranged on the fixing platform, and the limiting connecting plate and the fixing platform are positioned by a plurality of positioning pins.

6. The housing pre-tightening device for controller screw assembly according to claim 5, characterized in that: The shape and size of the limiting connecting plate match those of the fixing platform. A locking and fixing structure is respectively provided in the middle of two opposite sides of the fixing platform along the first direction. The limiting connecting plate is fixedly mounted on the fixing platform through the two locking and fixing structures.

7. The housing pre-tightening device for controller screw assembly according to claim 6, characterized in that: The locking and fixing structure includes a support plate and a locking pin. The fixing platform is fixedly provided with a support plate in the middle of two opposite sides along the first direction. The locking pin is arranged on the support plate. The limiting connecting plate is provided with a fixing hole in the middle of two opposite sides along the first direction. The fixing hole matches the locking pin. The locking pin is fixedly inserted into the fixing hole, and the product mold base is fixedly connected to the fixing platform.

8. The housing pre-tightening device for controller screw assembly according to claim 5, characterized in that: The product mold pressure plate includes a pressure plate body, two connecting frames and two hinges. The two connecting frames are symmetrically arranged at an edge of the limiting connecting plate along the first direction. One end of each connecting frame away from the limiting connecting plate is respectively provided with a hinge, and the pressure plate body is connected to the connecting frame through the hinge.

9. The housing pre-tightening device for controller screw assembly according to claim 8, characterized in that: The limiting connecting plate is provided with bottom support handles on two opposite sides along the second direction, and the pressing plate body is provided with a pressing plate handle on the side away from the connecting frame in the first direction.

10. The housing pre-tightening device for controller screw assembly according to claim 9, characterized in that: The support rod is in the shape of a U-shaped structure, and the opening of the U-shaped structure faces one side of the base handle.

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