Lower die holder of riveting machine and riveting machine

Abstract

The utility model provides a lower die base of a riveting machine and the riveting machine, and belongs to the technical field of riveting devices.The lower die base of the riveting machine comprises a base body, a lower punching needle and a dust suction device; a collecting mounting cavity and a collecting mounting hole are formed in the base body, one end of the lower punching needle is arranged in the collecting mounting cavity, the other end of the lower punching needle penetrates through the collecting mounting hole, a first gap is formed between the collecting mounting hole and the lower punching needle, a scrap discharging opening is formed in the base body, and the dust suction device is communicated with the scrap discharging opening. When the lower die base of the riveting machine is used, due to the fact that the dust suction device communicates with the scrap discharging opening of the collecting and installing cavity, suction force can be generated in the first gap, scraps generated on the upper surface of the lower die base can be sucked into the collecting and installing cavity, and therefore the scraps generated during riveting can be cleaned away in time; the multilayer circuit board is prevented from short circuit, and the quality of produced products is improved.

Description

Technical Field

[0001] The present application relates to the technical field of riveting devices, and in particular to a lower die base of a riveting machine and a riveting machine. Background Art

[0002] A printed circuit board (PCB) is divided into a single-sided board, a double-sided board, and a multi-layer circuit board. Among them, in the manufacturing process of a multi-layer circuit board, a riveting machine is required to perform riveting and pressing on the multi-layer circuit board.

[0003] The existing riveting machine includes a frame, an upper die base, and a lower die base disposed below the upper die base and corresponding to the upper die base. An upper punch is provided on the upper die base, and a lower punch is provided on the lower die base. When the upper punch and the lower punch stamp a rivet, rivet iron filings and debris will be generated above and on the surface of the lower die base.

[0004] Since rivet iron filings and debris will be generated during the use of the riveting machine, and the rivet iron filings and debris remain on the multi-layer circuit board, it is easy to cause short circuits and damage to the multi-layer circuit board. Summary of the Utility Model

[0005] The present application provides a lower die base of a riveting machine and a riveting machine to solve the technical problem that the existing riveting machine cannot clean the generated rivet iron filings and debris.

[0006] The first aspect of the embodiments of the present application provides a lower die base of a riveting machine, which is used to be installed on the frame of the riveting machine and cooperate with the upper die base of the riveting machine to drive a rivet onto a workpiece to be riveted, and includes a seat body, a lower punch, and a dust suction device;

[0007] The seat body is used to be disposed on the frame. A collection and installation cavity is provided inside the seat body. A collection and installation hole communicating with the collection and installation cavity is provided on the upper surface of the seat body. Part of the lower punches are inserted into the collection and installation cavity through the collection and installation hole and correspond to the upper punches on the upper die base;

[0008] A first gap is provided between the collection and installation hole and the lower punch, so that the debris on the upper surface of the seat body can enter the collection and installation cavity;

[0009] A debris discharge port communicating with the collection and installation cavity is provided on the seat body. The dust suction device is communicated with the debris discharge port. The dust suction device is used to suck the debris into the collection and installation cavity through the first gap.

[0010] In the preferred technical solution of the lower die holder of the above riveting machine, it further includes a buffer assembly. The buffer assembly includes a buffer seat and a buffer spring. The buffer seat is arranged in the collection and installation hole, and the height of the upper surface of the buffer seat is higher than the height of the upper surface of the seat body, so that the buffer seat abuts against the workpiece to be riveted.

[0011] A punch through-hole is provided on the buffer seat. Part of the lower punch is inserted into the collection and installation cavity through the punch through-hole, and there is a second gap between the lower punch and the punch through-hole, so that the debris on the upper surface of the buffer seat can enter the collection and installation cavity.

[0012] One end of the buffer spring is connected to the inner wall of the collection and installation cavity, and the other end of the buffer spring is connected to the buffer seat to buffer the buffer seat.

[0013] In the preferred technical solution of the lower die holder of the above riveting machine, the dust suction device includes a vacuum cleaner, a first dust suction pipe, a second dust suction pipe and a debris collection and sealing box. The debris collection and sealing box is provided with a suction port and a discharge port. The suction port is communicated with the debris discharge port through the first dust suction pipe, and the discharge port is communicated with the vacuum cleaner through the second dust suction pipe.

[0014] In the preferred technical solution of the lower die holder of the above riveting machine, it further includes a distance sensor and a controller. The distance sensor and the vacuum cleaner are both electrically connected to the controller. The distance sensor is arranged on the seat body. The distance sensor is used to detect the distance between the upper punch and the seat body. When the distance between the upper punch and the seat body is less than a preset distance, the controller controls the vacuum cleaner to start.

[0015] In the preferred technical solution of the lower die holder of the above riveting machine, a debris interception net is provided on the discharge port.

[0016] In the preferred technical solution of the lower die holder of the above riveting machine, a magnet is arranged in the debris collection and sealing box.

[0017] In the preferred technical solution of the lower die holder of the above riveting machine, a magnetic attraction ring is sleeved on the outer wall of the second dust suction pipe.

[0018] In the preferred technical solution of the lower die holder of the above riveting machine, the seat body includes a cylinder body and a cover body. The cylinder body is used to be arranged on the frame, the cover body covers the upper end opening of the cylinder body, and the collection and installation hole is arranged on the cover body.

[0019] In the preferred technical solution of the lower die holder of the above riveting machine, the debris discharge port is arranged at the bottom of the cylinder body.

[0020] A second aspect of the embodiments of the present application provides a riveting machine, which includes a frame and an upper die base disposed on the frame, and further includes a lower die base of the riveting machine according to any one of the above, and the lower die base of the riveting machine is disposed on the frame.

[0021] A lower die base of a riveting machine and the riveting machine provided by the present application, the lower die base of the riveting machine includes a base body, a lower punch pin and a dust suction device; the base body is disposed on the frame of the riveting machine, a collection installation cavity is provided in the base body, a collection installation hole communicating with the collection installation cavity is provided on the upper surface of the base body, one end of the lower punch pin is disposed in the collection installation cavity, the other end of the lower punch pin passes through the collection installation hole and corresponds to the upper punch pin of the upper die base of the riveting machine, and a first gap is provided between the collection installation hole and the lower punch pin, so that debris on the upper surface of the base body can enter the collection installation cavity, a debris discharge port communicating with the collection installation cavity is provided on the base body, the dust suction device is communicated with the debris discharge port, and the dust suction device is used to suck the debris into the collection installation cavity through the first gap. When the riveting machine performs riveting, the lower punch pin will punch the rivet, and thus debris will be generated at the lower punch pin. When using the lower die base of the riveting machine of the present application, one end of the lower punch pin is disposed in the collection installation cavity, the other end of the lower punch pin passes through the collection installation hole, and a first gap is provided between the collection installation hole and the lower punch pin, so that the debris generated around the lower punch pin will directly fall into the collection installation cavity, and because the dust suction device is communicated with the debris discharge port of the collection installation cavity, a suction force will be generated in the first gap, so that the debris generated on the upper surface of the lower die base can be sucked into the collection installation cavity, thereby timely cleaning the debris generated during riveting, preventing short circuits of multi-layer circuit boards, and improving the quality of the products produced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application.

[0023] Figure 1 It is a schematic structural diagram of the lower die base of the riveting machine provided by the embodiments of the present application;

[0024] Figure 2 It is a schematic structural diagram of the riveting machine provided by the embodiments of the present application.

[0025] Description of the reference numerals:

[0026] 100 - base body; 110 - cylinder body; 111 - debris discharge port; 120 - cover body; 121 - collection installation hole; 130 - collection installation cavity;

[0027] 200 - lower punch pin;

[0028] 300 - Dust suction device; 310 - Vacuum cleaner; 320 - First dust suction pipe; 330 - Second dust suction pipe; 331 - Magnetic attraction ring; 340 - Debris collection sealing box; 341 - Suction inlet; 342 - Suction outlet; 343 - Debris interception net; 344 - Magnet;

[0029] 400 - Buffer assembly; 410 - Buffer seat; 411 - Punch through hole; 420 - Buffer spring;

[0030] 500 - Distance sensor;

[0031] 600 - Controller;

[0032] 700 - Frame;

[0033] 800 - Upper die holder;

[0034] 900 - Upper punch;

[0035] D1 - First gap;

[0036] D2 - Second gap.

[0037] Through the above - mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Description of the Embodiment

[0038] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0039] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] In this application, unless otherwise clearly specified or limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In addition, if the descriptions such as "first" and "second" are involved in the embodiments of this application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0042] As mentioned in the background art, a printed circuit board (PCB) is divided into a single-sided board, a double-sided board, and a multi-layer circuit board. Among them, in the manufacturing process of a multi-layer circuit board, a riveting machine is required to perform riveting and pressing on the multi-layer circuit board.

[0043] Existing riveting machines include a machine frame, an upper die base, and a lower die base disposed below the upper die base and corresponding to the upper die base. An upper punch pin is provided on the upper die base, and a lower punch pin is provided on the lower die base. When the upper punch pin and the lower punch pin stamp a rivet, rivet iron filings and debris will be generated above and on the surface of the lower die base.

[0044] Since rivet iron filings and debris are generated during the use of the riveting machine, and the rivet iron filings and debris remain on the multi-layer circuit board, it is easy to cause short circuits and damage to the multi-layer circuit board.

[0045] To solve the technical problem that the existing riveting machines cannot clean the generated rivet iron filings and debris, the present application proposes a lower die base of a riveting machine and a riveting machine, including a seat body, a lower punch pin, and a dust suction device; the seat body is used to be arranged on the frame of the riveting machine, a collection installation cavity is arranged inside the seat body, a collection installation hole communicating with the collection installation cavity is arranged on the upper surface of the seat body, one end of the lower punch pin is arranged inside the collection installation cavity, the other end of the lower punch pin passes through the collection installation hole and corresponds to the upper punch pin of the upper die base of the riveting machine, and there is a first gap between the collection installation hole and the lower punch pin, so that the debris on the upper surface of the seat body can enter the collection installation cavity, a debris discharge port communicating with the collection installation cavity is arranged on the seat body, and the dust suction device is communicated with the debris discharge port, and the dust suction device is used to suck the debris into the collection installation cavity through the first gap.

[0046] When the riveting machine is performing riveting, the lower punch pin will punch the rivet, so debris will be generated at the lower punch pin. When using the lower die base of the riveting machine of the present application, one end of the lower punch pin is arranged inside the collection installation cavity, the other end of the lower punch pin passes through the collection installation hole, and there is a first gap between the collection installation hole and the lower punch pin. Therefore, the debris generated around the lower punch pin will directly fall into the collection installation cavity, and because the dust suction device is communicated with the debris discharge port of the collection installation cavity, a suction force will be generated in the first gap, so that the debris generated on the upper surface of the lower die base can be sucked into the collection installation cavity, so that the debris generated during riveting can be cleaned in time, preventing short circuits in multi-layer circuit boards and improving the quality of the products produced.

[0047] The technical solution of the application will be described in detail below with specific embodiments in conjunction with the accompanying drawings. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0048] Refer to Figure 1 and Figure 2 as shown, Figure 1 is a schematic structural diagram of the lower die base of the riveting machine provided by the embodiment of the present application; Figure 2 is a schematic structural diagram of the riveting machine provided by the embodiment of the present application.

[0049] In the embodiment of the present application, refer to Figure 1 and Figure 2 as shown, the embodiment of the present application provides a lower die base of a riveting machine, which is used to be installed on the frame 700 of the riveting machine and cooperate with the upper die base 800 of the riveting machine to drive the rivet onto the workpiece to be riveted, including a seat body 100, a lower punch pin 200, and a dust suction device 300.

[0050] The base body 100 is used to be arranged on the frame 700. A collection and installation cavity 130 is arranged inside the base body 100. A collection and installation hole 121 communicating with the collection and installation cavity 130 is arranged on the upper surface of the base body 100. Part of the lower punch needles 200 are inserted into the collection and installation cavity 130 through the collection and installation hole 121 and correspond to the upper punch needles 900 of the upper die base 800.

[0051] There is a first gap D1 between the collection and installation hole 121 and the lower punch needle 200, so that the debris on the upper surface of the base body 100 can enter the collection and installation cavity 130.

[0052] A debris discharge port 111 communicating with the collection and installation cavity 130 is arranged on the base body 100. The dust suction device 300 is communicated with the debris discharge port 111. The dust suction device 300 is used to suck the debris into the collection and installation cavity 130 through the first gap D1.

[0053] The lower die base of the riveting machine of the present application is arranged on the frame 700 of the riveting machine and corresponds to the upper die base 800 on the frame 700. A collection and installation cavity 130 is arranged inside the base body 100. The collection and installation cavity 130 is used to install the lower punch needles 200 and collect debris.

[0054] The upper surface of the base body 100, which is the surface corresponding to the upper die base 800, is provided with a collection and installation hole 121 communicating with the collection and installation cavity 130. The installation end of the lower punch needle 200 is arranged in the collection and installation cavity 130. The working end of the lower punch needle 200 passes through the collection and installation hole 121 and corresponds to the upper punch needle 900 of the upper die base 800 of the riveting machine. The lower punch needle 200 is used to punch the rivet. The first gap D1 between the collection and installation hole 121 and the lower punch needle 200 should ensure that the debris can pass through, so that the debris is sucked into the collection and installation cavity 130 to ensure the cleanliness of the upper surface of the base body 100 and the working end of the lower punch needle 200.

[0055] The dust suction device 300 has a strong suction force, so as to suck the debris on the upper surface of the base body 100 and the working end of the lower punch needle 200 into the collection and installation cavity 130 through the first gap D1. The dust suction device 300 can be a vacuum cleaner, a centrifugal worm wheel fan, etc.

[0056] When the riveting machine is performing riveting, the lower punch 200 will punch the rivet, and thus debris will be generated at the lower punch 200. When using the lower die base of the riveting machine of the present application, one end of the lower punch 200 is arranged in the collection installation cavity 130, the other end of the lower punch 200 passes through the collection installation hole 121, and there is a first gap D1 between the collection installation hole 121 and the lower punch 200. Thus, the debris generated around the lower punch 200 will directly fall into the collection installation cavity 130. And because the dust suction device 300 is communicated with the debris discharge port 111 of the collection installation cavity 130, a suction force will be generated in the first gap D1, so that the debris generated on the upper surface of the lower die base can be sucked into the collection installation cavity 130. Thus, the debris generated during riveting can be cleaned in time, preventing short circuits from occurring in multi-layer circuit boards and improving the quality of the products produced.

[0057] In other embodiments, a buffer assembly 400 is further included. The buffer assembly 400 includes a buffer seat 410 and a buffer spring 420. The buffer seat 410 is arranged in the collection installation hole 121, and the height of the upper surface of the buffer seat 410 is higher than the height of the upper surface of the seat body 100 so that the buffer seat 410 abuts against the workpiece to be riveted; a punch through hole 411 is arranged on the buffer seat 410, and part of the lower punch 200 is inserted into the collection installation cavity 130 through the punch through hole 411, and there is a second gap D2 between the lower punch 200 and the punch through hole 411, so that the debris on the upper surface of the buffer seat 410 can be introduced into the collection installation cavity 130; one end of the buffer spring 420 is connected to the inner wall of the collection installation cavity 130, and the other end of the buffer spring 420 is connected to the buffer seat 410 to buffer the buffer seat 410.

[0058] In this embodiment, the buffer seat 410 is used to abut against the workpiece to be riveted, so that PCB multi-layer circuit boards with different thicknesses can be riveted, avoiding loose riveting or over-tight riveting when riveting PCB multi-layer circuit boards with different thicknesses, which may cause the PCB multi-layer circuit board to be damaged.

[0059] During use, the buffer seat 410 is squeezed downward according to the thickness of the PCB multi-layer circuit board. Due to the action of the buffer spring 420, the buffer seat 410 has a buffering effect, so that the force on the PCB multi-layer circuit board is within a reasonable range. And because a punch through hole 411 is arranged on the buffer seat 410, the end of the punch away from the collection installation cavity 130 passes through the punch through hole 411, and there is a second gap D2 between the lower punch 200 and the punch through hole 411, so that the debris on the upper surface of the buffer seat 410 and the working end of the lower punch 200 can be sucked into the collection installation cavity 130 through the second gap D2. Thus, the debris generated during riveting can be cleaned in time, preventing short circuits from occurring in multi-layer circuit boards and improving the quality of the products produced. It should be noted that the second gap D2 is within the range of the first gap D1.

[0060] In another embodiment, the dust suction device 300 includes a vacuum cleaner 310, a first dust suction pipe 320, a second dust suction pipe 330, and a debris collection sealing box 340. The debris collection sealing box 340 is provided with a suction inlet 341 and a suction outlet 342. The suction inlet 341 is communicated with the debris discharge port 111 through the first dust suction pipe 320, and the suction outlet 342 is communicated with the vacuum cleaner 310 through the second dust suction pipe 330.

[0061] In this embodiment, the debris collection sealing box 340 can collect the generated debris, so as to recycle the debris and improve the utilization rate of resources.

[0062] In a certain embodiment, it further includes a distance sensor 500 and a controller 600. Both the distance sensor 500 and the vacuum cleaner 310 are electrically connected to the controller 600. The distance sensor 500 is arranged on the seat body 100. The distance sensor 500 is used to detect the distance between the upper punching needle 900 and the seat body 100. When the distance between the upper punching needle 900 and the seat body 100 is less than a preset distance, the controller 600 controls the vacuum cleaner 310 to start.

[0063] In this embodiment, the distance sensor 500 transmits the detected distance signal between the upper punching needle 900 and the seat body 100 to the controller 600. When the distance between the upper punching needle 900 and the seat body 100 is less than the preset distance, the controller 600 controls the vacuum cleaner 310 to start. Thus, when the riveting machine is working, the debris can be cleaned in time, and the vacuum cleaner 310 does not need to be turned on for a long time, which improves the service life of the vacuum cleaner 310 and ensures the timeliness of cleaning.

[0064] In other possible embodiments, a debris interception net 343 is arranged on the suction outlet 342.

[0065] In this embodiment, by arranging the debris interception net 343, most of the debris is intercepted in the debris collection sealing box 340, preventing too much debris from being absorbed by the vacuum cleaner 310, and improving the service life of the vacuum cleaner 310.

[0066] In another possible embodiment, a magnet 344 is arranged in the debris collection sealing box 340.

[0067] In this embodiment, by arranging a magnet 344 in the debris collection sealing box 340, the iron filings can be intercepted in the collection sealing box, preventing the iron filings from being absorbed by the vacuum cleaner 310, and improving the service life of the vacuum cleaner 310.

[0068] In other embodiments, a magnetic attraction ring 331 is sleeved on the outer wall of the second dust suction pipe 330.

[0069] This embodiment can further prevent iron filings from being absorbed by the vacuum cleaner 310. After using for a period of time, the second suction pipe 330 can be disassembled, and then the magnetic suction ring 331 can be taken out, so as to clean the second suction pipe 330 and prevent the second suction pipe 330 from being blocked.

[0070] In one embodiment, the base body 100 includes a cylindrical body 110 and a cover body 120. The cylindrical body 110 is used to be arranged on the frame 700, the cover body 120 covers the upper opening of the cylindrical body 110, and a collection mounting hole 121 is arranged on the cover body 120.

[0071] In this embodiment, since the cover body 120 covers the upper opening of the cylindrical body 110, that is, the cylindrical body 110 and the cover body 120 are detachably connected, it is convenient to clean the collection mounting cavity 130 and also convenient to replace the lower punch 200.

[0072] In another embodiment, the debris discharge port 111 is arranged at the bottom of the cylindrical body 110.

[0073] In this embodiment, the debris discharge port 111 is arranged at the bottom of the cylindrical body 110, so as to ensure that the debris in the collection mounting cavity 130 can smoothly enter the first suction pipe 320 and prevent the collection mounting cavity 130 from being blocked.

[0074] The second aspect of the embodiments of the present application provides a riveting machine, which includes a frame 700 and an upper die base 800 arranged on the frame 700, and further includes the lower die base of the riveting machine in any of the above embodiments. The lower die base of the riveting machine is arranged on the frame 700.

[0075] The riveting machine provided by the embodiments of the present application, because it includes the lower die base of the riveting machine in any of the above embodiments, the lower die base of the riveting machine includes a base body 100, a lower punch 200 and a dust suction device 300; the base body 100 is arranged on the frame 700 of the riveting machine, a collection mounting cavity 130 is arranged in the base body 100, a collection mounting hole 121 communicating with the collection mounting cavity 130 is arranged on the upper surface of the base body 100, one end of the lower punch 200 is arranged in the collection mounting cavity 130, the other end of the lower punch 200 passes through the collection mounting hole 121 and corresponds to the upper punch 900 of the upper die base 800 of the riveting machine, and a first gap D1 is provided between the collection mounting hole 121 and the lower punch 200, so that the debris on the upper surface of the base body 100 can enter the collection mounting cavity 130, a debris discharge port 111 communicating with the collection mounting cavity 130 is arranged on the base body 100, the dust suction device 300 is communicated with the debris discharge port 111, and the dust suction device 300 is used to suck the debris into the collection mounting cavity 130 through the first gap D1.

[0076] When the riveting machine is performing riveting, the lower punch 200 will punch the rivet, so debris will be generated at the lower punch 200. When using the lower die base of the riveting machine of the present application, one end of the lower punch 200 is arranged in the collection installation cavity 130, and the other end of the lower punch 200 passes through the collection installation hole 121, and there is a first gap D1 between the collection installation hole 121 and the lower punch 200. Thus, the debris generated around the lower punch 200 will directly fall into the collection installation cavity 130. And because the dust suction device 300 is communicated with the debris discharge port 111 of the collection installation cavity 130, a suction force will be generated in the first gap D1, so that the debris generated on the upper surface of the lower die base can be sucked into the collection installation cavity 130. Thus, the debris generated during riveting can be cleaned in time, preventing short circuits in multi-layer circuit boards and improving the quality of the products produced.

[0077] After considering the specification and practicing the content disclosed herein, those skilled in the art will readily conceive of other embodiments of the present application. The present application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of the present application and include well-known common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the following claims.

[0078] It should be understood that the present application is not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A lower die base of a riveting machine, which is used to be installed on a frame (700) of the riveting machine and cooperate with an upper die base (800) of the riveting machine to drive a rivet onto a workpiece to be riveted, characterized in that, It includes a base body (100), a lower punch pin (200) and a dust suction device (300); The base body (100) is used to be arranged on the frame (700). A collection and installation cavity (130) is arranged inside the base body (100). A collection and installation hole (121) communicating with the collection and installation cavity (130) is arranged on the upper surface of the base body (100). Part of the lower punch pin (200) is inserted into the collection and installation cavity (130) through the collection and installation hole (121) and corresponds to the upper punch pin (900) of the upper die base (800); There is a first gap between the collection and installation hole (121) and the lower punch pin (200), so that the debris on the upper surface of the base body (100) can enter the collection and installation cavity (130); A debris discharge port (111) communicating with the collection and installation cavity (130) is arranged on the base body (100). The dust suction device (300) is communicated with the debris discharge port (111). The dust suction device (300) is used to suck the debris into the collection and installation cavity (130) through the first gap.

2. The lower die holder of the riveting machine according to claim 1, characterized in that It further includes a buffer assembly (400). The buffer assembly (400) includes a buffer seat (410) and a buffer spring (420). The buffer seat (410) is arranged in the collection and installation hole (121), and the height of the upper surface of the buffer seat (410) is higher than the height of the upper surface of the base body (100), so that the buffer seat (410) abuts against the part to be riveted; A punch pin through hole (411) is arranged on the buffer seat (410). Part of the lower punch pin (200) is inserted into the collection and installation cavity (130) through the punch pin through hole (411), and there is a second gap between the lower punch pin (200) and the punch pin through hole (411), so that the debris on the upper surface of the buffer seat (410) can enter the collection and installation cavity (130); One end of the buffer spring (420) is connected to the inner wall of the collection and installation cavity (130), and the other end of the buffer spring (420) is connected to the buffer seat (410) to buffer the buffer seat (410).

3. The lower die holder of the riveting machine according to claim 1, characterized in that, The dust suction device (300) includes a vacuum cleaner (310), a first dust suction pipe (320), a second dust suction pipe (330) and a debris collection and sealing box (340). An air suction port (341) and an air outlet (342) are arranged on the debris collection and sealing box (340). The air suction port (341) is communicated with the debris discharge port (111) through the first dust suction pipe (320), and the air outlet (342) is communicated with the vacuum cleaner (310) through the second dust suction pipe (330).

4. The lower die holder of the riveting machine according to claim 3, characterized in that, It further includes a distance sensor (500) and a controller (600). The distance sensor (500) and the vacuum cleaner (310) are both electrically connected to the controller (600). The distance sensor (500) is disposed on the base body (100), and the distance sensor (500) is used to detect the distance between the upper punch (900) and the base body (100). When the distance between the upper punch (900) and the base body (100) is less than a preset distance, the controller (600) controls the vacuum cleaner (310) to start.

5. The lower die holder of the riveting machine according to claim 3, characterized in that, A debris interception net (343) is disposed on the suction outlet (342).

6. The lower die holder of the riveting machine according to claim 3, characterized in that, A magnet (344) is disposed in the debris collection and sealing box (340).

7. The lower die holder of the riveting machine according to claim 3, characterized in that, A magnetic attraction ring (331) is sleeved on the outer wall of the second dust suction pipe (330).

8. The lower die holder of the riveting machine according to any one of claims 1 to 7, characterized in that, The base body (100) includes a cylinder body (110) and a cover body (120). The cylinder body (110) is used to be disposed on the frame (700), the cover body (120) covers the upper end opening of the cylinder body (110), and the collection and installation hole (121) is disposed on the cover body (120).

9. The lower die holder of the riveting machine according to claim 8, characterized in that, The debris discharge port (111) is disposed at the bottom of the cylinder body (110).

10. A riveting machine, comprising a machine frame (700) and an upper die base (800) arranged on the machine frame (700), characterized in that, It further includes a lower die base of the riveting machine according to any one of claims 1 to 9, and the lower die base of the riveting machine is disposed on the frame (700).

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