A production line for riveting range hood housings

Abstract

This invention discloses a production line for riveting range hood housings, comprising: riveting equipment, a frame, and a slide rail mounted on the frame; a riveting clamp device including a housing moving component, a bottom component, and a clamp body installed sequentially from bottom to top, the housing moving component being disposed on the slide rail, allowing the riveting clamp device to slide in the left-right direction, a punch assembly being mounted on the upper part of the clamp body, and a detachable die assembly being provided on the lower part of the clamp body; two riveting clamp devices being arranged spaced apart and opposite to each other in the left-right direction; a control system; two riveting devices being arranged spaced apart; and a driver located below the riveting clamp devices, used to drive the riveting clamp devices to slide in the left-right direction. By setting up a control system to control the start of the driver to drive the range hood housing to slide on the slide rail, the left-right spacing of the clamp body is automatically and intelligently adjusted, thereby adapting to the riveting needs of different products with different widths, improving production efficiency and reducing costs.

Description

Technical Field

[0001] This invention relates to the field of riveting, and in particular to a riveting production line for range hood housings. Background Technology

[0002] Currently, based on the market demand for range hood housing production in the home appliance industry, range hood housings require rivetless riveting. Due to market demand, different models of range hoods need to be developed, and these models have different housing dimensions. When the width of the range hood housing workpiece varies, the dimensions of the riveting equipment required for different models also need to be adjusted accordingly. Existing production lines can only complete the riveting of one model of range hood housing. Furthermore, existing production lines can only complete the riveting of one side of the housing before transporting it to another production line for the other side. Therefore, existing production lines suffer from high transfer time and cannot adapt to the needs of riveting multiple models when adjustments are required due to different workpiece widths, resulting in low production efficiency. Summary of the Invention

[0003] To solve at least one of the above-mentioned technical problems, the present invention provides a production line for riveting range hood housings, the technical solution of which is as follows:

[0004] The range hood housing riveting production line includes a range hood housing riveting production line, characterized in that it includes:

[0005] Riveting equipment, including:

[0006] The base frame includes a frame body and slide rails mounted on the frame body;

[0007] A housing is mounted on the base frame, and the housing forms a working space;

[0008] A riveting device is mounted on the base frame and located within the workspace;

[0009] The riveting pliers device includes a housing moving part, a base part, and a pliers body installed sequentially from bottom to top. The housing moving part is mounted on the slide rail, allowing the riveting pliers device to slide in the left-right direction. A punch assembly is mounted on the upper part of the pliers body, and a detachable die assembly is provided on the lower part of the pliers body. The range hood housing is placed on the die assembly. A first workpiece clamping device is provided on the die assembly, which is used to clamp the range hood housing in the vertical direction. A second workpiece clamping device is installed on both the front and rear sides of the pliers body for clamping the range hood housing in the left-right direction. A third workpiece clamping device is installed on the front side of the pliers body for clamping the range hood housing in the front-back direction. A limiting assembly for limiting the left-right direction of the riveting pliers device is installed on the base frame. There are two riveting pliers devices, which are spaced apart and opposite to each other in the left-right direction.

[0010] A control system for controlling the riveting clamp device;

[0011] Conveyor;

[0012] Two riveting devices are provided and arranged at intervals. The two riveting devices are respectively used to rivet the long side and the short side of the range hood box.

[0013] A feeding platform is located between the two riveting devices;

[0014] A driver is mounted on the base frame and is located below the riveting pliers. The driver is used to drive the riveting pliers to slide in the left and right direction.

[0015] Beneficial effects: By setting up a control system to control the start of the driver, the range hood housing is moved on the slide rail, thereby realizing the automated and intelligent adjustment of the left and right spacing of the clamp body. This adapts to the riveting needs of different products with different widths, improving production efficiency and reducing costs.

[0016] In some embodiments of the present invention, the lower part of the clamp body is U-shaped.

[0017] In some embodiments of the present invention, the die assembly includes a die pad and a die mounting member installed sequentially from bottom to top. The die pad is installed on one side of the lower part of the clamp body, and the die mounting member is mounted on the die mounting member.

[0018] In some embodiments of the present invention, the first workpiece clamping device includes a clamping connector and a clamping mechanism mounted on the clamping connector, wherein the clamping connector is mounted on one side of the die assembly.

[0019] In some embodiments of the present invention, the clamping mechanism includes:

[0020] A first driving device, one side of which is detachably connected to the lower part of the die mounting component, and the other side of which is provided with a movable joint.

[0021] The corner clamping component includes a first side portion and a second side portion fixedly connected to the first side portion. The first side portion is used to contact the range hood housing and clamp the range hood housing in the vertical direction.

[0022] In some embodiments of the present invention, the second side portion includes a first connecting portion and a second connecting portion, the first connecting portion being rotatably connected to the movable joint, and the second connecting portion being rotatably connected to the upper part of the die mounting component.

[0023] In some embodiments of the present invention, the punch assembly includes a bracket mounted on the upper part of the clamp body, and a second driving device is mounted on the bracket. The second driving device includes a power device and a driving connector connected to the power device, and a punch actuation mechanism is provided on one side of the driving connector.

[0024] In some embodiments of the present invention, the punch actuator includes a cover, a punch connector, a punch press, and a punch pusher arranged sequentially from top to bottom. One side of the drive connector passes through the cover and abuts against the punch connector. The punch press has a mounting hole. The punch actuator also includes a punch disposed in the mounting hole. The top surface of the punch abuts against the bottom surface of the punch connector. The punch press has a guide portion configured as a through hole. The guide portion is aligned with and coaxially disposed with the mounting hole. The punch pusher has a guide hole. At least a portion of the guide portion is inserted into the guide hole. At least a portion of the punch is located within the guide portion and within the guide hole. A limiting portion for limiting the downward movement stroke of the guide portion is connected to the lower side of the guide hole.

[0025] In some embodiments of the present invention, a guide post is mounted on the punch connector, and the bracket has a guide structure with a through hole through which the guide post passes.

[0026] In some embodiments of the present invention, the punch pressing member and the punch pushing member are arranged at intervals in the vertical direction, and the punch execution mechanism further includes an elastic member, which abuts against the punch pressing member and the punch pushing member on both sides along the extension and retraction direction of the elastic member.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the assembly line for the riveting production line of the range hood housing of the present invention;

[0030] Figure 2 This is a structural schematic diagram of the riveting equipment of the present invention;

[0031] Figure 3 yes Figure 1 Schematic diagram of the structure after removing the shell;

[0032] Figure 4 yes Figure 3 Rear view diagram;

[0033] Figure 5 This is the book Figure 3 A diagram showing the view from below;

[0034] Figure 6 This is a schematic diagram of the riveting device;

[0035] Figure 7 yes Figure 6 The left view;

[0036] Figure 8 This is a structural schematic diagram of the punch assembly;

[0037] Figure 9 yes Figure 8 Rear view diagram with the bracket removed;

[0038] Figure 10 yes Figure 9 A cross-sectional view of one of the punch actuators and the second drive unit.

[0039] Figure label:

[0040] 100-Riveting equipment; 110-Base frame; 111-Frame body; 112-Slide rail; 113-Limiting component; 114-Housing shell; 115-Working space; 116-Lower support clamping component; 200-Riveting pliers device; 210-Box moving part; 211-Bottom part; 212-Pliers body; 220-Punch assembly; 221-Bracket; 222-Guide structure; 223-Second drive device; 224-Power device; 225-Drive connector; 226-Punch actuator; 227-Cover; 228-First receiving groove; 229-Punch connector; 230-Second receiving groove; 231-Guide post; 232-Punch clamping part; 233-Mounting hole; 234-Guide part; 235-Punch 236-Guide hole; 237-Limiting part; 238-Punch part; 239-Elastic part; 250-Die assembly; 251-Die pad; 252-Die mounting part; 253-Die part; 310-First workpiece clamping device; 311-Clamping connector; 312-Clamping mechanism; 313-First drive device; 314-Modible joint; 315-Corner clamping part; 316-First side; 317-Second side; 318-First connecting part; 319-Second connecting part; 320-Second workpiece clamping device; 330-Third workpiece clamping device; 340-Driver; 400-Control system; 500-Conveyor; 600-Discharge platform; 700-Rainbow hood housing. Detailed Implementation

[0041] This section will describe embodiments of the present invention in detail with reference to the accompanying drawings, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0042] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In this document, the terms "first," "second," etc., are used to distinguish feature names and do not have special meanings. In this document, when "several" or "more than" is mentioned, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number.

[0043] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] Reference Figures 1 to 10 This invention proposes a riveting production line for a range hood housing 700, including a riveting device 100, a control system 400, a conveyor 500, and a feeding platform 600.

[0046] Specifically, the riveting equipment 100 includes: a base frame 110, which includes a frame body 111 and a slide rail 112 mounted on the frame body 111; a housing 114, which is mounted on the base frame 110 and forms a working space 115; and a riveting pliers device 200, which is mounted on the base frame 110 and located within the working space 115.

[0047] The control system 400 is used to control the riveting device 200. It can be understood that the control system 400 is electrically or signal-connected to the electrical components that need to be controlled within the riveting production line of the range hood housing 700.

[0048] A feeding platform 600 is located between the two riveting devices 100. The feeding platform 600 is used to place the range hood housing 700, facilitating its transfer or rotation between the two riveting devices 100. A conveyor 500 is used to transport the riveted range hood housing 700 out.

[0049] It is understood that the riveting pliers device 200 also includes a housing moving part 210, a bottom part 211, and a clamping body 212 installed sequentially from bottom to top. The housing moving part 210 is mounted on a slide rail 112, allowing the riveting pliers device 200 to slide in the left-right direction. A punch assembly 220 is mounted on the upper part of the clamping body 212, and a detachable die assembly 250 is provided on the lower part of the clamping body 212. The range hood housing 700 is placed on the die assembly 250, and a first workpiece clamping device 310 is provided on the die assembly 250. The first workpiece clamping device 310 is used to clamp the range hood housing 700. The range hood housing 700 is clamped vertically. The front and rear sides of the clamp body 212 are equipped with second workpiece clamping devices 320 for clamping the range hood housing 700 in the left and right directions. The front side of the clamp body 212 is equipped with a third workpiece clamping device 330 for clamping the range hood housing 700 in the front and back directions. The base frame 110 is equipped with a limiting component 113 for limiting the left and right directions of the riveting device 200. There are two riveting devices 200, which are spaced apart and opposite to each other in the left and right directions.

[0050] Specifically, the clamping drive devices used in the first workpiece clamping device 310, the second workpiece clamping device 320, and the third workpiece clamping device 330 are cylinders. More specifically, the third workpiece clamping device 330 is a rotary clamping cylinder device. Figure 2 The third workpiece clamping device 330 is used to clamp the upper left and upper right sides of the range hood housing 700. For example... Figure 2 and Figure 3 As shown, there are four second workpiece clamping devices 320, located on the left and right sides of the front and rear of the riveting equipment 100, respectively. The four second workpiece clamping devices 320 clamp the range hood housing 700 evenly and forcefully.

[0051] In some embodiments, multiple first workpiece clamping devices 310 are arranged along the front-to-back direction. In this embodiment, six are provided. It is understood that the specific number can be adjusted according to the dimensions of different models of range hood housings 700.

[0052] In some embodiments, the bottom component 211 is further provided with a lower support clamping assembly 116, which is located in front of the clamp body 212 and is used to clamp the lower part of the range hood housing 700. It works together with the third workpiece clamping device 330 to clamp and fix the range hood housing 700 in the front-back direction.

[0053] In this embodiment, two riveting devices 100 are provided and arranged at intervals. The two riveting devices 100 are respectively used to rivet the long side and the short side of the range hood housing 700.

[0054] In this embodiment, a driver 340 is mounted on the base frame 110. The driver 340 is located below the riveting pliers 200 and is used to drive the riveting pliers 200 to slide in the left and right direction. Specifically, the driver 340 is a cylinder. The driver 340 is connected to the housing moving part 210 and is signal-connected to the control system 400. The control system 400 controls the start of the driver 340 to drive the housing moving part 210 to slide on the slide rail 112, thereby realizing automated and intelligent adjustment of the left and right spacing of the clamp body 212. This adapts to the riveting needs of different products with different widths, improving production efficiency and reducing costs.

[0055] In this embodiment, the lower part of the clamp body 212 is U-shaped. The die assembly 250 includes a die pad 251 and a die mounting member 252 installed sequentially from bottom to top. The die pad 251 is installed on one side of the lower part of the clamp body 212, and the die mounting member 252 is equipped with a die member 253. Specifically, as shown... Figure 4 As shown, the die pad 251 is installed at the lower part of the clamp body 212 and is set as an open U-shape, so that there is a gap between the punch assembly 220 and the die assembly 250 to accommodate the placement of the range hood housing 700.

[0056] Specifically, the first workpiece clamping device 310 includes a clamping connector 311 and a clamping mechanism 312 mounted on the clamping connector 311. The clamping connector 311 is mounted on one side of the die assembly 250.

[0057] Continue to refer to Figure 6 and Figure 7 The clamping mechanism 312 includes a first driving device 313, one side of which is detachably connected to the lower part of the die mounting part 252, and the other side of the first driving device 313 is provided with a movable joint 314; and a corner clamping member 315, which includes a first side part 316 and a second side part 317 fixedly connected to the first side part 316. The first side part 316 is used to contact the range hood housing 700 and clamp the range hood housing 700 in the vertical direction, and to push out the range hood housing 700 after riveting.

[0058] Specifically, the second side portion 317 includes a first connecting portion 318 and a second connecting portion 319. The first connecting portion 318 is rotatably connected to the movable joint 314, and the second connecting portion 319 is rotatably connected to the upper part of the die mounting component 252.

[0059] The punch assembly 220 includes a bracket 221, which is mounted on the upper part of the clamp body 212. A second drive device 223 is mounted on the bracket 221. The second drive device 223 includes a power device 224 and a drive connector 225 connected to the power device 224. A punch actuator 226 is provided on one side of the drive connector 225.

[0060] Specifically, the power unit 224 is a hydraulic cylinder. It is understood that the hydraulic cylinder is a general-purpose or procured component. The power unit 224 can be a pneumatic cylinder or a gear lifting device, etc. Those skilled in the art are capable of selecting the appropriate specifications, models, and parameters according to actual needs.

[0061] Continue to refer to Figures 8 to 10 The punch actuator 226 includes, from top to bottom, a cover 227, a punch connector 229, a punch pressing member 232, and a punch pusher 235. One side of the drive connector 225 passes through the cover 227 and abuts against the punch connector 229. The punch pressing member 232 has a mounting hole 233. The punch actuator 226 also includes a punch 238, which is disposed in the mounting hole 233. The top surface of the punch 238 is flush with the punch connector 229. The bottom surface of 9 abuts against the punch. The punch 232 has a hollow guide portion 234. The guide portion 234 is connected to and coaxially arranged with the mounting hole 233. The punch pusher 235 has a guide hole 236. At least a portion of the guide portion 234 is inserted into the guide hole 236. At least a portion of the punch 238 is located inside the guide portion 234 and the guide hole 236. A limiting portion 237 for limiting the downward movement stroke of the guide portion 234 is connected to the lower side of the guide hole 236.

[0062] Specifically, the portion of the drive connector 225 that abuts against the punch connector 229 is cylindrical. The cover 227 has a first receiving groove 228 that is open, and during installation, at least a portion of the drive connector 225 is placed in the first receiving groove 228. The punch connector 229 has a second receiving groove 230 that accommodates the cylindrical portion of the punch connector 229 that abuts against it; during installation, this cylindrical portion is placed in the second receiving groove 230.

[0063] In some embodiments, a guide post 231 is mounted on the punch connector 229, and the bracket 221 has a guide structure 222 with a through hole through which the guide post 231 passes.

[0064] In some embodiments, the punch pressing member 232 and the punch pushing member 235 are arranged at intervals along the vertical direction. The punch actuator 226 further includes an elastic member 239, which abuts against the punch pressing member 232 and the punch pushing member 235 on both sides along the extension and contraction direction of the elastic member 239. Specifically, the elastic member 239 is a helical spring. It is understood that the elastic member 239 can be other forms such as an air spring. Those skilled in the art are capable of selecting the appropriate specifications, models, and parameters according to actual needs.

[0065] In some embodiments, multiple punch assemblies 220 are provided. In this embodiment, five are provided. In other embodiments, multiple supports 221 of the multiple punch assemblies 220 are integrated, that is, multiple second drive devices 223 and punch actuators 226 are mounted on a single support 221. It is understood that the number of punch assemblies 220 can be adjusted according to the specific dimensions of the range hood housing 700.

[0066] The working principle of the range hood housing 700 riveting production line of the present invention is as follows: Manual feeding is performed. The control system 400 controls the first workpiece clamping device 310, the second workpiece clamping device 320, and the third workpiece clamping device 330 to clamp and fix the housing. The second drive device 223 is activated, and the power device 224 drives the drive connector 225 downward. Because the drive connector 225 abuts against the punch connecting plate, it drives the punch connecting plate downward. The downward pressure of the punch connector 229, along with the punch 238 and the punch pressing member 232, moves downward. The guide portion 234 of the punch pressing member 232 moves under the guidance of the guide hole 236 of the punch pusher 235. Continuing to press downward, the end of the punch 238 gradually exposes the guide hole 236, thus inserting into the die and riveting the range hood housing 700. At this time, the elastic member 239 is in a compressed state. The limiting part 237 of the punch pusher 235 restricts the downward pressing of the punch pressure member 232, thereby limiting the stroke of the punch member 238 and preventing overpressure and impact. After riveting, the power unit 224 drives the drive connection to move upward. Due to the release of pressure, the elastic force of the elastic member 239 causes the end of the punch member 238 to retract into the guide hole 236. The guide post 231 and the guide structure 222 guide the entire up and down process to ensure the accuracy of riveting.

[0067] When picking up materials, the first drive device 313 starts and drives the movable joint 314, while the first connecting part 318 moves downward. The second connecting part 319 is rotatably connected to the upper part of the die mounting part 252 and acts as a fulcrum. The movable joint 314 is pulled down by lever, causing the first side part 316 to tilt up and push out the range hood box 700 placed on the corner pressing part 315 for manual picking up.

[0068] The riveting production line for the range hood housing 700 of this invention rivets the left and right side plates and the rear plate of the top and rear plates of the range hood housing 700 together. Manual loading and unloading are performed, and all riveting points are clamped and riveted together in one go, improving production efficiency. For different workpiece models, the die assembly 250 needs to be replaced, and the die assembly 250 can be quickly replaced (manually). Due to different workpiece widths, the left and right movement and stopping position of the riveting pliers 200 needs to be adjusted for model changes. The estimated production cycle time of this production line is as follows: 13 seconds for manual installation of the top and rear plates and left and right side plates of the range hood housing 700, 8 seconds for riveting completion and workpiece ejection, and 5 seconds for workpiece unloading. The estimated production cycle time of this production line is 26 seconds per piece.

[0069] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the existence of an infinite number of specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A production line for riveting the casing of a range hood, characterized in that, include: Riveting equipment, including: The base frame includes a frame body and slide rails mounted on the frame body; A housing is mounted on the base frame, and the housing forms a working space; A riveting device is mounted on the base frame and located within the workspace; The riveting pliers device includes a housing moving part, a base part, and a pliers body installed sequentially from bottom to top. The housing moving part is mounted on the slide rail, allowing the riveting pliers device to slide in the left-right direction. A punch assembly is mounted on the upper part of the pliers body, and a detachable die assembly is provided on the lower part of the pliers body. The range hood housing is placed on the die assembly. A first workpiece clamping device is provided on the die assembly, which is used to clamp the range hood housing in the vertical direction. A second workpiece clamping device is installed on both the front and rear sides of the pliers body for clamping the range hood housing in the left-right direction. A third workpiece clamping device is installed on the front side of the pliers body for clamping the range hood housing in the front-back direction. A limiting assembly for limiting the left-right direction of the riveting pliers device is installed on the base frame. There are two riveting pliers devices, which are spaced apart and opposite to each other in the left-right direction. A control system for controlling the riveting clamp device; Conveyor; Two riveting devices are provided and arranged at intervals. The two riveting devices are respectively used to rivet the long side and the short side of the range hood box. A feeding platform is located between the two riveting devices; A driver is mounted on the base frame. The driver is located below the riveting pliers and is used to drive the riveting pliers to slide in the left and right direction. The die assembly includes a die pad and a die mounting component installed sequentially from bottom to top. The die pad is installed on one side of the lower part of the clamp body, and the die mounting component is installed on the die mounting component. The first workpiece clamping device includes a clamping connector and a clamping mechanism mounted on the clamping connector, wherein the clamping connector is mounted on one side of the die assembly; The clamping mechanism includes: A first driving device, one side of which is detachably connected to the lower part of the die mounting component, and the other side of which is provided with a movable joint. The corner clamping component includes a first side portion and a second side portion fixedly connected to the first side portion. The first side portion is used to contact the range hood housing and clamp the range hood housing in the vertical direction.

2. The range hood housing riveting production line according to claim 1, characterized in that, The lower part of the clamp body is U-shaped.

3. The range hood housing riveting production line according to claim 1, characterized in that, The second side portion includes a first connecting portion and a second connecting portion, the first connecting portion being rotatably connected to the movable joint, and the second connecting portion being rotatably connected to the upper part of the die mounting component.

4. The range hood housing riveting production line according to claim 1, characterized in that, The punch assembly includes a bracket, which is mounted on the upper part of the clamp body. A second driving device is mounted on the bracket. The second driving device includes a power unit and a driving connector connected to the power unit. A punch actuator is provided on one side of the driving connector.

5. The range hood housing riveting production line according to claim 4, characterized in that, The punch actuator includes a cover, a punch connector, a punch presser, and a punch pusher arranged sequentially from top to bottom. One side of the drive connector passes through the cover and abuts against the punch connector. The punch presser has a mounting hole. The punch actuator also includes a punch, which is disposed in the mounting hole. The top surface of the punch abuts against the bottom surface of the punch connector. The punch presser has a guide portion configured as a through hole. The guide portion is aligned with and coaxially arranged with the mounting hole. The punch pusher has a guide hole. At least a portion of the guide portion is inserted into the guide hole. At least a portion of the punch is located within the guide portion and the guide hole. A limiting portion for restricting the downward movement stroke of the guide portion is connected to the lower side of the guide hole.

6. The range hood housing riveting production line according to claim 5, characterized in that, The punch connector is equipped with a guide post, and the bracket has a guide structure with a through hole through which the guide post passes.

7. The range hood housing riveting production line according to claim 6, characterized in that, The punch pressing member and the punch pushing member are arranged at intervals in the vertical direction. The punch execution mechanism also includes an elastic member, which abuts against the punch pressing member and the punch pushing member on both sides along the extension and retraction direction of the elastic member.

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