An assembling process of an inverter box

Abstract

The application discloses an assembling process of an inverter box, which comprises the following steps: S1, providing a riveting table provided with a riveting die, sleeving the inverter box on the riveting die in a way that the box opening faces downward, and aligning the rivet holes on the inverter box with the positioning holes on the riveting die; S2, collecting the image of the inverter box; S3, a rivet feeding disc supplies rivets to a rivet feeding arm one by one according to the size and / or quantity of the rivet holes, and the rivet feeding disc is provided with rivets corresponding to the size and the rivet holes in batches; the moving path of the rivet feeding arm is set according to the position of the rivet holes, and the rivet feeding arm moves according to the moving path to put the rivets into the rivet holes one by one; and S4, a riveting head is pressed onto the inverter box according to a predetermined pressing force to press all the rivets into the corresponding rivet holes. The assembling process of the inverter box has a high degree of automation, reduces the labor cost, and greatly improves the production efficiency and product quality.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of photovoltaic inverters, and particularly relates to an assembling process of an inverter box. BACKGROUND

[0002] The box of the inverter has multiple rivet holes, and generally needs to install rivets in the rivet holes through a riveting device. The riveting device is mechanical equipment for riveting products with rivets according to the cold rolling principle. The current riveting device can only perform riveting work on one position of the inverter box, and needs to reposition the inverter box after each riveting to perform riveting on another riveting position, so the production efficiency is low. Moreover, in actual production, the alignment mode during riveting is mainly observed by manual naked eyes, and then riveting is performed after alignment, so that the workers are highly concentrated for a long time, which easily causes mental fatigue, and the rivets of similar specifications are easily mixed and used, causing operation errors. SUMMARY

[0003] In view of at least one of the above technical problems, the present application provides an improved assembling process of an inverter box.

[0004] To achieve the above object, the present application adopts the following technical scheme:

[0005] An assembling process of an inverter box, comprising the following steps:

[0006] S1, providing a riveting table provided with a riveting die, and sleeving an inverter box on the riveting die in a manner that the box opening faces downward, and aligning the rivet holes on the inverter box with the positioning holes on the riveting die;

[0007] S2, collecting an image of the inverter box, and identifying the positions of the rivet holes on the inverter box and the sizes and / or quantities of the rivet holes according to the image;

[0008] S3, a rivet feeding disc supplies rivets to a rivet feeding arm one by one according to the sizes and / or quantities of the rivet holes, and the rivet feeding disc is provided with rivets corresponding to the sizes of the rivet holes in batches; the moving path of the rivet feeding arm is set according to the identified rivet hole positions, and the rivet feeding arm moves according to the moving path to put rivets into the rivet holes one by one;

[0009] S4, after the rivets are placed in all the rivet holes, a riveting head above the inverter box is pressed onto the inverter box according to a predetermined pressing force to press all the rivets into the corresponding rivet holes;

[0010] The rivet has an internal threaded hole, and the rivet and the box are in interference fit.

[0011] Preferably, the rivet holes include first rivet holes and second rivet holes with different sizes;

[0012] In step S2, the number of first rivet holes and the number of second rivet holes are identified according to the image;

[0013] In step S3, a first feeding disc for feeding first rivets and a second feeding disc for feeding second rivets are provided, wherein the size of the first rivets corresponds to the first rivet holes and the size of the second rivets corresponds to the second rivet holes; the first feeding disc is used to supply the first rivets to the rivet feeding arm one by one, and the rivet feeding arm is used to place the first rivets into the corresponding first rivet holes according to the set movement path; after the first rivets are placed in the first rivet holes, step S4 is executed, and the rivet pressing head is pressed with the first pressing force corresponding to the first rivets;

[0014] Then the second feeding disc is used to supply the second rivets to the rivet feeding arm one by one, and the rivet feeding arm is used to place the second rivets into the corresponding second rivet holes according to the set movement path; after the second rivets are placed in the second rivet holes, step S4 is executed again, and the rivet pressing head is pressed with the second pressing force corresponding to the second rivets.

[0015] More preferably, in step S4, the first pressing force is greater than or less than the second pressing force.

[0016] More preferably, the size of the first rivets is smaller than the size of the second rivets, and the first predetermined pressure is smaller than the second predetermined pressure.

[0017] Preferably, the outlet of the first feeding disc and one end of the first hose are connected and communicated, the outlet of the second feeding disc and one end of the second hose are connected and communicated, and the other end of the first hose and the other end of the second hose are arranged on the rivet feeding arm and communicated with the feeding head of the rivet feeding arm.

[0018] More preferably, in step S3, the rivet feeding arm is first moved to the rivet hole where the rivet is to be placed, and then the feeding disc is rotated to throw a rivet into the hose, wherein the other end of the hose is arranged on the rivet feeding arm and communicated with the feeding head of the rivet feeding arm, the rivet moves to the feeding head through the hose, and then falls into the rivet hole.

[0019] Preferably, the height of the outlet of the feeding disc communicated with the hose is greater than the height of the feeding head, and the hose gradually inclines downward from one end to the other end; the rivet feeding arm is arranged to be movable up and down, the rivet feeding arm includes two links connected in rotation, the feeding head is arranged on one end of one of the links, and the two links are horizontally relatively rotated to move the feeding head horizontally.

[0020] Preferably, the press rivet die has a plurality of pads and a plurality of positioning columns extending upward, the height of the pads is greater than the height of the positioning columns, the pads are made of flexible material, and the positioning holes are formed in the positioning columns; in step S4, the pads are compressed to the height of the positioning columns.

[0021] More preferably, in step S2, a camera arranged above the press rivet table is used to capture an image of the inverter box fitted on the press rivet die, the image is processed by a computer, the specifications and quantity of the rivets required are matched according to the size and quantity of the rivet holes on the inverter box, and the operation trajectory of the rivet feeding arm is designed according to the positions of the rivet holes on the inverter box.

[0022] Preferably, the assembly process specifically includes the following steps:

[0023] S101, a press rivet die set corresponding to an inverter box is installed on a press rivet table, the rivet holes on the inverter box include first rivet holes and second rivet holes with different sizes;

[0024] S102, the inverter box is fitted on the press rivet die with the box opening facing downward, and the first rivet holes and the second rivet holes are respectively aligned with the positioning holes on the press rivet die;

[0025] S103, an image of the inverter box is captured by a camera arranged above the inverter box, and the positions, sizes and quantities of the first rivet holes and the second rivet holes on the inverter box are identified according to the image;

[0026] S104, a first feeding disc with a batch of first rivets corresponding to the first rivet holes and a second feeding disc with a batch of second rivets corresponding to the second rivet holes are provided, a first movement path of a rivet feeding arm is set according to the positions of the first rivet holes, and a second movement path of the rivet feeding arm is set according to the positions of the second rivet holes;

[0027] S105, the rivet feeding arm moves to a first rivet hole according to the first movement path, the first feeding disc rotates to throw out a first rivet by centrifugal force, the first rivet is moved to a feeding head of the rivet feeding arm through a hose, and then falls into the first rivet hole directly below the feeding head;

[0028] Step S105 is repeated multiple times until all the first rivet holes are placed with first rivets;

[0029] S106, a press rivet head is pressed onto the inverter box according to a first predetermined pressure, and each first rivet is pressed into a first rivet hole;

[0030] S107, the rivet feeding arm moves to a second rivet hole according to a second movement path, the second feeding disc rotates to centrifugally throw out a second rivet and move to the feeding head of the rivet feeding arm through the hose, and then the second rivet falls into the second rivet hole directly below the feeding head;

[0031] The step S107 is repeated multiple times until all the second rivet holes are placed with the second rivets;

[0032] S108, the rivet pressing head is pressed on the inverter box according to a second predetermined pressure, and the second rivets are pressed into the second rivet holes.

[0033] The above scheme is adopted in the present application, and the present application has the following advantages compared with the prior art:

[0034] The assembly process of the inverter box of the present application collects the image of the inverter box, the feeding disc supplies the rivet feeding arm with rivets one by one according to the size and / or quantity of the rivet holes on the inverter box, the rivet feeding arm places the rivets on the inverter box according to the specified running track, and finally the rivet pressing head performs multi-stage rivet pressing on the inverter box with different levels of pressure, effectively solving the problem that the product needs to be repositioned after each rivet is pressed, and greatly improving the production efficiency and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0036] Figure 1 The flow chart of the assembly process of the inverter box according to the embodiment of the present application;

[0037] Figure 2 The perspective view of the rivet pressing device and the photovoltaic inverter after cooperation according to the embodiment of the present application;

[0038] Figure 3 The structure diagram of the rivet pressing die;

[0039] Figure 4 The schematic diagram of the rivet feeding mechanism;

[0040] Figure 5 The partial schematic diagram of the rivet pressing device according to the embodiment of the present application.

[0041] Among them,

[0042] 1, press-in table; 2, inverter box; 3, press-in die; 31, base; 32, handle; 33, cushion block; 34, positioning column; 341, positioning hole; 40, rivet feeding mechanism; 4, feeding disc; 41, first feeding disc; 411, discharge port; 42, second feeding disc; 43, rotary motor; 44, control console; 45, baffle; 46, feeding pipeline; 47, bracket; 5, press-in head; 6, hose; 7, camera; 80, rivet feeding mechanism; 8, rivet feeding arm; 81, feeding head; 82, connecting rod; 83, sliding rail; 85, sliding block; 9, operating rod; 10, clamping block; 11, machine body. DETAILED DESCRIPTION

[0043] The advantages and features of the present application will be understood more readily by a detailed description of the preferred embodiments, with reference to the following drawings. It is to be noted that the following descriptions of the embodiments are intended to help understand the present application, but are not intended to limit the present application. Furthermore, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0044] Referring to Figure 1 , the present embodiment provides an assembly process of an inverter box 2, which automatically assembles a plurality of rivets on the inverter box 2 by a press-in device. Referring to Figures 2 to 5 , the device includes a press-in table 1, a press-in die 3, a rivet feeding mechanism 40, a press-in head 5, a hose 6, an industrial camera 7, a rivet feeding mechanism 80, an operating rod 9, a clamping block 10, and a machine body 11.

[0045] Further, the rivet feeding arm 8 is arranged to be movable up and down, and the rivet feeding arm 8 includes two connecting rods 82 pivotally connected to each other, specifically, the two connecting rods 82 are pivotally connected at one end portion. The feeding head 81 is arranged on the other end portion (i.e. the free end portion) of one of the connecting rods 82, and the feeding head 81 is horizontally moved by the horizontal relative rotation of the two connecting rods 82.

[0046] Referring to Figure 3 , the press-in die 3 is provided with a plurality of cushion blocks 33 and a plurality of positioning columns 34 extending upward, the height of the cushion blocks 33 is greater than the height of the positioning columns 34, the cushion blocks 33 are made of flexible material, and the positioning holes 341 are formed in the positioning columns 34. It should be noted that the positioning columns 34 extend upward and pass through the press-in die 3, the upper end portion of the positioning columns 34 extends above the press-in die 3, and the lower end portion of the positioning columns 34 abuts against the press-in table 1. When the rivet is pressed in, the positioning columns 34 abut against the rivet hole of the box, so as to facilitate the rivet to bear force and prevent the box from deforming.

[0047] Referring to Figure 4 and Figure 5As shown, rivet feeding mechanism 40 includes feeding disc 4, control console 44, rotary motor 43 disposed above control console 44, and bracket 47. The output shaft of rotary motor 43 is connected to the bottom of feeding disc 4. Feeding disc 4 is connected to feeding pipe 46 on one side. Baffle 45 is disposed at the opening of discharge port 411. Bracket 47 is disposed below feeding pipe 46. Feeding disc 4 is horizontally rotatable. The centrifugal force generated by rotation can throw rivets out of discharge port 411. Further, rivet feeding mechanism 40 also has a shaping mechanism for arranging the orientation of rivets. The shaping mechanism can be disposed in feeding pipe 46. The orientation of rivets is adjusted during sliding in feeding pipe 46, so that the rivets are fed into hose 6 in a specific orientation (for example, in a direction with the head at the rear). The shaping mechanism and the like are not the key points of the application and known devices in the prior art can be used. Therefore, no further description is given here.

[0048] Further, feeding disc 4 includes first feeding disc 41 and second feeding disc 42. Both first feeding disc 41 and second feeding disc 42 have discharge port 411. Hose 6 includes first hose and second hose. The discharge port 411 of first feeding disc 41 is connected to one end of first hose. The discharge port 411 of second feeding disc 42 is connected to one end of second hose. The height of discharge port 411 is greater than the height of feeding head 81. The other end of first hose and the other end of second hose are disposed on rivet feeding arm 8 and connected to feeding head 81 of rivet feeding arm 8. In this embodiment, first hose and second hose can be gradually inclined downward from one end to the other end, so that the rivets can be fed to feeding head 81 under the action of inertia and gravity. Feeding head 81 is hollow and connected to hose 6. Rivets enter feeding head 81 under the action of inertia and gravity and can pass through feeding head 81 to reach inverter box 2.

[0049] Referring to Figure 2 As shown, rivet feeding mechanism 40 includes feeding disc 4, control console 44, rotary motor 43 disposed above control console 44, and bracket 47. The output shaft of rotary motor 43 is connected to the bottom of feeding disc 4. Feeding disc 4 is connected to feeding pipe 46 on one side. Baffle 45 is disposed at the opening of discharge port 411. Bracket 47 is disposed below feeding pipe 46. Feeding disc 4 is horizontally rotatable. The centrifugal force generated by rotation can throw rivets out of discharge port 411. Further, rivet feeding mechanism 40 also has a shaping mechanism for arranging the orientation of rivets. The shaping mechanism can be disposed in feeding pipe 46. The orientation of rivets is adjusted during sliding in feeding pipe 46, so that the rivets are fed into hose 6 in a specific orientation (for example, in a direction with the head at the rear). The shaping mechanism and the like are not the key points of the application and known devices in the prior art can be used. Therefore, no further description is given here.

[0050] Referring to Figure 5 As shown, rivet feeding mechanism 40 includes feeding disc 4, control console 44, rotary motor 43 disposed above control console 44, and bracket 47. The output shaft of rotary motor 43 is connected to the bottom of feeding disc 4. Feeding disc 4 is connected to feeding pipe 46 on one side. Baffle 45 is disposed at the opening of discharge port 411. Bracket 47 is disposed below feeding pipe 46. Feeding disc 4 is horizontally rotatable. The centrifugal force generated by rotation can throw rivets out of discharge port 411. Further, rivet feeding mechanism 40 also has a shaping mechanism for arranging the orientation of rivets. The shaping mechanism can be disposed in feeding pipe 46. The orientation of rivets is adjusted during sliding in feeding pipe 46, so that the rivets are fed into hose 6 in a specific orientation (for example, in a direction with the head at the rear). The shaping mechanism and the like are not the key points of the application and known devices in the prior art can be used. Therefore, no further description is given here.

[0051] The assembly process of the inverter box 2 includes the following steps:

[0052] S1, provide a rivet pressing table 1 provided with a rivet pressing die 3, and place the inverter box 2 on the rivet pressing die 3 in a manner that the box opening faces downward, and make the rivet holes on the inverter box 2 and the positioning holes 341 on the rivet pressing die 3 aligned;

[0053] S2, capture the image of the inverter box 2 by the camera 7, and identify the position of the rivet holes on the inverter box 2 and the size and / or quantity of the rivet holes according to the image;

[0054] S3, the rivet feeding disc 4 supplies rivets to the rivet feeding arm 8 one by one according to the size and / or quantity of the rivet holes identified, and a batch of rivets corresponding to the size and the rivet holes are placed in the rivet feeding disc 4; the moving path of the rivet feeding arm is set according to the position of the rivet holes identified, and the rivet feeding arm 8 moves along the moving path to place the rivets into the rivet holes one by one;

[0055] S4, after the rivets are placed in all the rivet holes, make the rivet pressing head 5 above the inverter box 2 press on the inverter box 2 according to the predetermined pressing force, press all the rivets into the corresponding rivet holes, and compress the cushion block 33 to the same height as the positioning column 34.

[0056] The rivet has an internal threaded hole, and the rivet and the box are in interference fit. The rivet hole includes first rivet holes and second rivet holes with different sizes.

[0057] In step S2, the camera 7 arranged above the rivet pressing table 1 captures the image of the inverter box 2 placed on the rivet pressing die 3, and the image is processed by a computer. According to the size and quantity of the rivet holes on the inverter box 2, the required specifications and quantity of the rivets (7 M4 rivets and 8 M6 rivets in this embodiment) are matched, and the computer designs the running tracks L1 and L2 of the rivet feeding arm 8 according to the position of the rivet holes on the inverter box 2.

[0058] In step S3, the first feeding disc 41 for placing a batch of first rivets (M4 rivets) and the second feeding disc 42 for placing a batch of second rivets (M6 rivets) are provided, wherein the size of the first rivet corresponds to the first rivet hole, and the size of the second rivet corresponds to the second rivet hole.

[0059] First, the rivet feeding arm 8 is moved to the rivet hole where the rivet is to be placed, and then the feeding disc 4 is rotated to throw a rivet into the hose 6, wherein the other end of the hose 6 is arranged on the rivet feeding arm 8 and communicates with the feeding head 81 of the rivet feeding arm 8. The rivet moves to the feeding head 81 after passing through the hose 6, and then falls into the rivet hole. At this time, the direction of the rivet falling can be controlled by external equipment or the like to make the rivet fall into the rivet hole.

[0060] Specifically, the motor is started, the slider 85 lifts the rivet feeding arm 8, the feeding head 81 is higher than the inverter box 2, and the rivet feeding arm 8 sequentially installs the first rivet into the first rivet hole according to the first running track L1; the first feeding disc 41 supplies the rivet feeding arm 8 with the first rivet one by one, and the rivet feeding arm 8 puts it into the corresponding first rivet hole according to the set moving path. Specifically, the control console 44 is started, the rotating motor 43 drives the rivet in the feeding disc 46 to rotate, the baffle 45 is opened, the first rivet is transported to the feeding head 81 along the feeding pipeline 46, and after the first rivet is placed in each first rivet hole, step S4 is executed, and the rivet gun 5 is pressed down with the first pressing force 11-13 KN corresponding to the first rivet.

[0061] The rivet feeding arm 8 sequentially installs the second rivet into the second rivet hole according to the second running track L2; and the second feeding disc 42 is further supplied with the second rivet one by one to the rivet feeding arm 8, and the rivet feeding arm 8 puts it into the corresponding second rivet hole according to the set running track L2; after the second rivet is placed in each second rivet hole, step S4 is executed again, and the rivet gun 5 is pressed down with the second pressing force corresponding to the second rivet, and the second pressing force is 18-32 KN.

[0062] In step S4, the control console 44 is closed, the feeding disc 4 stops feeding the rivet to the feeding head 81, the rivet feeding arm 8 retreats to the initial position, the operation lever 9 is pulled down, the rivet gun 5 is pressed according to the preset pressure, and the rivet in the rivet hole of the inverter box 2 is riveted, and the operation lever 9 is pushed up, and the rivet gun 5 retreats to the initial position.

[0063] The size of the first rivet of the embodiment is smaller than that of the second rivet, the first predetermined pressure is smaller than the second predetermined pressure, and the computer is preset with different levels of pressure, that is, the pressure preset when the rivet gun 5 is riveted to the inverter box 1 is positively correlated with the specification of the rivet.

[0064] Further, the assembly process specifically includes implementing the following:

[0065] S101, installing the riveting die set 3 corresponding to the inverter box 2 on the riveting table 1, the rivet holes on the inverter box 2 including first rivet holes and second rivet holes with different sizes;

[0066] S102, sleeving the inverter box 2 on the riveting die set 3 with the box opening downward, and aligning the first rivet holes and the second rivet holes with the positioning holes 341 on the riveting die set 3 respectively;

[0067] S103, collecting the image of the inverter box 2 through the camera 7 above the inverter box 2, and identifying the positions, sizes and quantities of the first rivet holes and the second rivet holes on the inverter box 2 according to the image;

[0068] S104, a first feeding disc 41 containing a batch of first rivets corresponding to the first rivet holes and a second feeding disc 42 containing a batch of second rivets corresponding to the second rivet holes are provided, the first moving path of the rivet feeding arm 8 is set according to the position of each first rivet hole, and the second moving path of the rivet feeding arm 8 is set according to the position of each second rivet hole;

[0069] S105, the rivet feeding arm 8 moves to a first rivet hole according to the first moving path, the first feeding disc 41 rotates to throw out a first rivet by centrifugal force and moves to the feeding head 81 of the rivet feeding arm 8 through the hose, and then the first rivet falls into the first rivet hole directly below the feeding head 81;

[0070] The step S105 is repeated multiple times until all the first rivet holes are placed with the first rivets;

[0071] S106, the pressure riveting head 5 is pressed onto the inverter box body 2 according to the first predetermined pressure, and each first rivet is pressed into the first rivet hole;

[0072] S107, the rivet feeding arm 8 moves to a second rivet hole according to the second moving path, the second feeding disc 42 rotates to throw out a second rivet by centrifugal force and moves to the feeding head 81 of the rivet feeding arm 8 through the hose 6, and then the second rivet falls into the second rivet hole directly below the feeding head 81;

[0073] The step S107 is repeated multiple times until all the second rivet holes are placed with the second rivets;

[0074] S108, the pressure riveting head 5 is pressed onto the inverter box body 2 according to the second predetermined pressure, and each second rivet is pressed into the second rivet hole.

[0075] Further, in the step S101, the moving clamping blocks 10 clamp and position the pressure riveting die 3, specifically, the number of the clamping blocks 10 is 4.

[0076] In the embodiment, the industrial camera 7 collects information of the size of the inverter box body 2, the console 44 delivers rivets of corresponding specifications and quantities from the feeding disc 4 to the feeding head 81 through the feeding pipeline 46 and the hose 6, the rivet feeding arm 8 performs rivet placement according to the specified running track, and different levels of pressure are preset to perform multi-stage pressure riveting on the inverter box body 2, which effectively solves the problem that the product needs to be repositioned after each rivet is riveted in the prior art, and greatly improves the production efficiency and product quality.

[0077] Compared with the prior art, the embodiment has at least the following advantages:

[0078] (1) Through the industrial camera, the shape size of the inverter box is collected, and the rivet is placed according to the specified running track by the discharging arm, which has high automation degree, greatly improves the production efficiency, and reduces the labor cost;

[0079] (2) By setting multiple specifications of the riveting die, it can be matched with different shape sizes of the inverter box, which not only has strong applicability, but also greatly reduces the cost of enterprise production of small batch and multi-specification products, and is beneficial to technology popularization and application;

[0080] (3) By presetting different levels of pressure, the preset pressure of the riveting head when riveting the inverter box is positively related to the specification of the rivet, which helps to improve the quality and service life of the product.

[0081] As shown in the specification and claims, the term "comprising" only indicates the inclusion of the steps and elements explicitly identified, and these steps and elements do not constitute an exclusive list, and the method or device can also include other steps or elements. The term "and / or" used herein includes any combination of one or more related listed items.

[0082] It should be noted that, unless otherwise specified, when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the present application are only relative to the mutual position relationship of the components of the present application in the drawings.

[0083] The above examples are only for illustrating the technical concept and characteristics of the present application, and are a preferred embodiment, the purpose of which is to enable those skilled in the art to understand the content of the present application and implement it, and it cannot limit the protection scope of the present application. Any equivalent transformation or modification made according to the principle of the present application should be covered within the protection scope of the present application.

Claims

1. A process for assembling an inverter cabinet, characterized in that, It comprises the following steps: S1, provide a rivet press table installed with a rivet press mold, put the inverter box on the rivet press mold with the box opening facing down, and align the rivet holes on the inverter box with the positioning holes on the rivet press mold, the rivet holes include a plurality of first rivet holes and a plurality of second rivet holes, the sizes of the first rivet holes and the second rivet holes are different; the rivet press mold has a plurality of pads and a plurality of positioning columns extending upward, the height of the pad is greater than the height of the positioning column, and the pad is made of flexible material, and the positioning hole is formed in the positioning column; S2, collect the image of the inverter box, identify the position of the rivet hole on the inverter box and the size of the rivet hole according to the image, and identify the number of first rivet holes and the number of second rivet holes according to the image; S3, the rivet feeding disc supplies rivets to the rivet feeding arm one by one according to the size and / or number of the rivet holes identified, and a plurality of rivets corresponding to the size of the rivet hole are placed in the rivet feeding disc; the moving path of the rivet feeding arm is set according to the rivet hole position identified, and the rivet feeding arm moves according to the moving path to put the rivets into each rivet hole one by one; S4, make the rivet press head above the inverter box press on the inverter box with a predetermined pressing force, the positioning column is against the rivet hole of the box, and the rivet is pressed into the corresponding rivet hole; Wherein, the rivet has an internal threaded hole, and the rivet and the box are in interference fit; in step S3, a first feeding disc for placing a plurality of first rivets and a second feeding disc for placing a plurality of second rivets are provided, wherein the size of the first rivet corresponds to the first rivet hole, and the size of the second rivet corresponds to the second rivet hole; First, the first feeding disc supplies the first rivet to the rivet feeding arm one by one, and the rivet feeding arm puts it into the corresponding first rivet hole according to the set moving path; After each first rivet hole is placed with a first rivet, step S4 is executed, and the rivet press head is pressed down with a first pressing force corresponding to the first rivet to press each first rivet into the first rivet hole; Then, the second feeding disc supplies the second rivet to the rivet feeding arm one by one, and the rivet feeding arm puts it into the corresponding second rivet hole according to the set moving path, After each second rivet hole is placed with a second rivet, step S4 is executed again, and the rivet press head is pressed down with a second pressing force corresponding to the second rivet to press each second rivet into the second rivet hole.

2. The assembly process of the inverter cabinet according to claim 1, characterized in that, In step S4, the first pressing force is greater than or less than the second pressing force.

3. The assembly process of the inverter cabinet according to claim 2, characterized in that, The size of the first rivet is smaller than the size of the second rivet, and the first pressing force is smaller than the second pressing force.

4. The assembly process of the inverter cabinet according to claim 2, wherein, The outlet of the first feeding disc and one end of the first hose are connected in communication, the outlet of the second feeding disc and one end of the second hose are connected in communication, and the other end of the first hose and the other end of the second hose are arranged on the rivet feeding arm and are in communication with the feeding head of the rivet feeding arm.

5. The process of assembling an inverter cabinet according to claim 1, wherein, In step S3, the rivet feeding arm is first moved to the rivet hole where the rivet is to be placed, and then the feeding disc is rotated to throw a rivet into the soft tube, one end of the soft tube is arranged on the rivet feeding arm and communicates with the feeding head of the rivet feeding arm, the rivet moves to the feeding head through the soft tube, and then falls into the rivet hole.

6. The assembly process of the inverter cabinet according to claim 5, wherein, The height of the discharging port of the feeding disc communicating with the soft tube is greater than the height of the feeding head, the soft tube is gradually inclined downward from one end to the other end; the rivet feeding arm is arranged to be movable up and down, the rivet feeding arm comprises two connecting rods connected in rotation, the feeding head is arranged on one end of one of the connecting rods, and the feeding head is moved horizontally by rotating the two connecting rods horizontally relative to each other.

7. The process of assembling an inverter cabinet according to claim 1, wherein, In step S4, the cushion block is compressed to be the same height as the positioning column.

8. The process of assembling an inverter cabinet according to claim 1, wherein, In step S2, the camera arranged above the rivet setting table is used to collect the image of the inverter box set on the rivet setting die, the image is processed by a computer, the size and number of the rivet holes on the inverter box are matched with the size and number of the required rivets, and the operation track of the rivet feeding arm is designed according to the positions of the rivet holes on the inverter box.

9. The process for assembling an inverter cabinet according to any one of claims 1 to 8, characterized in that, The assembly process specifically includes the following steps: S101, installing the rivet setting die set corresponding to the inverter box on the rivet setting table, the rivet holes on the inverter box include first rivet holes and second rivet holes with different sizes; S102, setting the inverter box on the rivet setting die with the box opening downward, and aligning the first rivet holes and the second rivet holes with the positioning holes on the rivet setting die respectively; S103, collecting the image of the inverter box by the camera above the inverter box, and identifying the positions, sizes and numbers of the first rivet holes and the second rivet holes on the inverter box according to the image; S104, providing a first feeding disc containing a batch of first rivets corresponding to the first rivet holes and a second feeding disc containing a batch of second rivets corresponding to the second rivet holes, setting a first movement path of the rivet feeding arm according to the positions of the first rivet holes, and setting a second movement path of the rivet feeding arm according to the positions of the second rivet holes; S105, moving the rivet feeding arm to a first rivet hole according to the first movement path, rotating the first feeding disc to throw a first rivet out of the first feeding disc and move the first rivet to the feeding head of the rivet feeding arm through the soft tube, and then the first rivet falls into the first rivet hole directly below the feeding head; Repeat step S105 multiple times until all the first rivet holes are placed with the first rivets; S106, pressing the rivet setting head to the inverter box according to the first predetermined pressure, and pressing each first rivet into the first rivet hole; S107, moving the rivet feeding arm to a second rivet hole according to the second movement path, rotating the second feeding disc to throw a second rivet out of the second feeding disc and move the second rivet to the feeding head of the rivet feeding arm through the soft tube, and then the second rivet falls into the second rivet hole directly below the feeding head; Repeat step S107 multiple times until all the second rivet holes are placed with the second rivets. S108, the pressure rivet head is pressed to the inverter box according to the second predetermined pressure, and each second rivet is pressed into the second rivet hole.

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