CN209077969U - A kind of material punching mould group of Built-in terminal box machining tool - Google Patents

Abstract

The utility model discloses a punching module of a wiring cassette processing machine tool, which belongs to the field of wiring cassette manufacturing. It includes an upper mounting seat and a lower mounting seat installed on the frame, and the upper mounting seat and the lower mounting seat are sequentially equipped with a fourth group of molds, a fifth group of molds and a sixth group of molds along the feeding direction; The fourth group of molds is provided with a slot hole punch, a snap hole punch and a first bending part; the fifth group of molds is provided with a second bending part; the sixth group of molds is provided with mutual Matching cores and holes. The utility model can process the plate into the shape conforming to the molding of the finished product cassette, the processing position is precise, and the multiple positions of the plate can be processed at the same time, and the processing efficiency is high.

Description

A punching module of a wiring cassette processing machine tool

technical field

The utility model belongs to the field of wiring cassette manufacturing, and more particularly relates to a wiring cassette processing machine tool and a punching module thereof.

Background technique

In construction projects or various decoration constructions, in order to connect various cables in the room, it is usually necessary to cut a groove on the wall, and then fix a wiring cassette on the groove. The wiring cassette can connect at the same time. The wire, as the transition of various electrical circuits and the role of protecting the safety of the circuit, the wiring operation can be completed inside the cassette.

The wiring cassette is generally a rectangular box with an opening, which consists of a bottom plate and a plurality of side plates connected to the bottom plate. The side plates and the bottom plate are provided with wiring holes, threaded holes for subsequent installation, and mounting ears, etc. Therefore, it is very difficult to process and form the junction box at one time. At present, there is basically no equipment specially used for processing the junction box on the market. Usually, each board is processed separately and then assembled by welding and other methods. Wiring cassettes is time-consuming and labor-intensive.

In the prior art, the function and structure of the junction box and the junction box are relatively similar, the difference is that the junction box is mainly used for the installation of various switches and sockets and other electrical wiring panels, and is generally installed outside the building surface; In order to keep the building surface clean and beautiful, the wiring cassette generally needs to be pre-embedded. Then, although in actual production, the production equipment used to manufacture junction boxes cannot be used to manufacture junction boxes, we assume that in theory, the equipment used to manufacture junction boxes can be used to process junction boxes after some changes. The processing and manufacturing methods of the cassette can include the following two: (1) first assemble a plurality of flat plates into a rectangular box body with an opening, and then perform drilling, tapping and other operations on each surface of the box body by machine tools and other equipment, A finished wiring cassette is formed; (2) injection molding is performed through an injection mold.

For example, the Chinese patent application number is: CN201621471334.8, and the publication date is: the patent document on August 29, 2017, which discloses a special machine tool for processing motor junction boxes. The rotating disk and the driving motor that drives the rotating disk to rotate. At least three workpiece fixing devices are evenly distributed on the upper surface of the rotating disk around the rotating shaft of the rotating disk. The upper surface of the rotating disk is also provided with a drilling device and a tapping device for processing the end face of the junction box. The device, the drilling device and the tapping device respectively correspond to two adjacent workpiece fixing devices. When the machine tool is processing the junction box, the operator can remove the processed junction box and replace it with the junction box to be processed. Pipeline work. However, this technical solution requires the equipment in the pre-process to make the box body of the junction box before drilling and tapping the junction box. This two-stage processing method requires a certain intermediate time, and the processing efficiency is not high. Not particularly ideal. In addition, since the area of the rotating disk of the machine tool in this solution is fixed, the number of workpiece fixing devices on the rotating disk cannot be set too much. The junction boxes are removed one by one and then replaced with the junction boxes to be processed, which takes a long time and further reduces the processing efficiency.

Another example is the Chinese patent application number: CN201620330313.8, the publication date is: November 23, 2016, a special series of documents discloses a junction box production module, including a blanking die, an injection die, a trimming die, and a side punch. Hole mold and edge grinding mold; the injection mold includes a main frame, an upper mold unit and a lower mold unit arranged on the main frame; the upper mold unit includes an upper injection mold that can move up and down, and is connected to the upper injection mold. The injection part in the middle part and the upper mold driving part for driving the upper injection mold to move up and down; the lower mold unit includes a lower injection mold, an injection junction box opened on the lower injection mold and can cooperate with the injection mold A matching plastic box cavity of the body and a first wire engaging groove and a second conducting wire engaging groove opened on the left and right sides of the matching plastic box cavity for accommodating wires; between the upper injection mold and the lower injection mold It is provided with a matching injection molding component that can limit and tighten the wire when the upper injection mold is pressed down. Although the structure of the utility model is simple, it can effectively tighten and limit the wire, prevent the wire from bending or moving during the injection molding process, and ensure the sealing of the junction box injection molding, but the molding time required to manufacture the junction box through the module It takes a long time, and it takes a long time to process the injection molding raw materials, and the processing efficiency of the entire module manufacturing junction box is not high.

Utility model content

1. The problem to be solved

Aiming at the problems in the prior art that there is no equipment specially used for one-time processing of junction cassettes and the low efficiency of using other equipment to process and manufacture junction cassettes, the utility model provides a junction cassette processing machine tool, which can continuously complete the connection of junction cassettes. One-time processing, the shape of the processed junction cassette is accurate, the hole position is accurate, and the processing efficiency is very high.

The utility model also provides a punching module of a wiring cassette processing machine tool, which is used for the above wiring cassette processing machine tool. The position is processed, and the processing efficiency is high.

2. Technical solutions

In order to solve the above problems, the present invention adopts the following technical solutions.

A punching module of a wiring cassette processing machine tool, comprising an upper mounting seat and a lower mounting seat, the upper mounting seat is mounted on the frame by a press, the lower mounting seat is supported on the frame by a column, and the upper mounting seat The fourth group of molds, the fifth group of molds and the sixth group of molds are sequentially installed in the lower mounting seat along the feeding direction; the fourth group of molds is provided with a slot hole punch, a snap hole punch and a first group of molds. A bending part; the fifth group of molds is provided with a second bending part; the sixth group of molds is provided with a mold core and a mold hole that cooperate with each other.

As a further improvement of the technical solution, the fourth die set includes a fourth upper die set and a fourth lower die set, and the fourth upper die set and the fourth lower die set each include three mounting plates; the fourth upper die set The slot hole punch and the snap hole punch are mounted on the lower mounting plate of the die, and the first bending part is mounted on the upper mounting plate of the fourth lower die set.

As a further improvement of the technical solution, the upper mounting plate of the fourth lower die set is further provided with grooves matched with the slot hole punch and the buckle hole punch.

As a further improvement of the technical solution, the fifth die set includes a fifth upper die set and a fifth lower die set, and the fifth upper die set and the fifth lower die set each include three mounting plates; the fifth lower die set The second bending part is mounted on the upper mounting plate of the die.

As a further improvement of the technical solution, the sixth die set includes a sixth upper die set and a sixth lower die set, and the sixth upper die set and the sixth lower die set each include three mounting plates; the sixth upper die set A mold core is provided on the lower mounting plate of the mold, and a mold hole matched with the mold core is provided on the upper mounting plate of the sixth lower mold group.

As a further improvement of the technical solution, the upper mounting plate of the sixth lower die set is also provided with an escape groove for avoiding the buckle and the clamping groove on the sheet.

As a further improvement of the technical solution, the cross section of the mold core is rectangular, a pair of central U-shaped grooves are symmetrically arranged in the middle of one long side, and one end of the two short sides close to the other long side is respectively provided with one end There is a U-shaped groove, and a rectangular boss is respectively set in the middle of the two short sides.

As a further improvement of the technical solution, the upper mounting plate and the middle mounting plate in the fourth upper die set, the fifth upper die set and the sixth upper die set are all connected by springs.

As a further improvement of the technical solution, positioning columns are installed on both sides of the upper ends of the fourth lower die set, the fifth lower die set and the sixth lower die set along the feeding direction; The ring groove on the horizontal plane, the sheet material passes through the ring groove and is supported by the ring groove and arranged between the positioning columns on both sides along the feeding direction.

As a further improvement of the technical solution, a spring column is arranged between the upper mounting seat and the lower mounting seat; the spring column includes a cylindrical sleeve mounted on the upper mounting seat and a strut mounted on the lower mounting seat; the strut The lower part is covered with a supporting spring, and the upper part is covered with a looper.

3. Beneficial effects

Compared with the prior art, the beneficial effects of the present utility model are:

(1) The utility model is a junction cassette processing machine tool, which can continuously complete the fully automated one-time processing of the junction cassettes, and the processed junction cassettes have precise shapes, precise hole positions, and extremely high processing efficiency;

(2) A punching and tapping module of the junction box processing machine tool of the present invention is used for the above-mentioned junction box processing machine tool, which can simultaneously perform punching and tapping operations on multiple positions on the sheet material, and the processing positions are accurate. , providing the processing efficiency of the wiring cassette;

(3) The utility model is a punching module for a wiring cassette processing machine tool, which is used for the above wiring cassette processing machine tool, and can process the sheet into a shape that conforms to the molding of the finished cassette. Processing in one position, high processing efficiency;

(4) The utility model is a molding module of a junction cassette processing machine tool, which is used for the above-mentioned junction cassette processing machine tool, which can cut the plate and process it into a finished cassette.

Description of drawings

Figure 1 is a schematic view of the main view of the installation of the processing machine tool of the scheme;

Fig. 2 is the side view installation schematic diagram of the processing machine tool of this scheme;

Fig. 3 is the front view of the processing machine tool of the scheme;

Fig. 4 is the structural representation of the spring column in Fig. 3;

Fig. 5 is the main view processing position diagram of the sheet material of the scheme on the processing machine tool;

Fig. 6 is the top view processing position diagram of the sheet material of this scheme on the processing machine tool;

Fig. 7 is the structural representation of the positioning column in Fig. 5;

Figure 8 is a bottom view of each upper die set of the processing machine tool of the scheme;

FIG. 9 is a top view of each lower die set of the processing machine tool according to the scheme;

Figure 10 is a top view of the finished product cassette of the scheme;

Figure 11 is a schematic structural diagram of the finished product cassette of the scheme;

Fig. 12 is a partial enlarged view of the ear seat in Fig. 11;

Figure 13 is an expanded view of the finished product cassette of this scheme

Figure 14 is a front view of the punching and tapping module of the scheme;

Fig. 15 is the bottom view of each upper group mould in Fig. 14;

Fig. 16 is a partial enlarged view of the knock-out punch in Fig. 14;

Fig. 17 is the processing position diagram of each lower die set of the sheet material in Fig. 14;

Figure 18 is a front view of the punching module of the scheme;

Figure 19 is a bottom view of each upper die set in Figure 18;

Fig. 20 is a partial enlarged view of each mold core in Fig. 19;

Fig. 21 is the processing position diagram of each lower die set of sheet material in Fig. 18;

Figure 22 is a top view of each lower die set in Figure 18;

Figure 23 is a schematic structural diagram before the buckle is bent;

Figure 24 is a schematic diagram of the structure after the buckle is bent;

Fig. 25 is the front view of the forming module of this scheme;

Figure 26 is a bottom view of the seventh upper die set in Figure 25;

Figure 27 is a top view of the seventh lower die set in Figure 25;

Fig. 28 is a working position diagram of the plate on the seventh lower die set.

The symbols in the figure represent:

1. Upper mounting seat; 2. Lower mounting seat; 3. Upright column;

4. Tapping machine; 41. Ear hole tap;

5. Positioning column; 51. Ring groove;

6, spring column; 61, cylinder sleeve; 62, pillar; 63, looper; 64, support spring;

7. Sheet material; 71. Stamping position of mounting hole; 721, Stamping position of ear hole; 722, Tapping position of ear hole; 723, Stamping position of ear seat hole; 731, Stamping position of snap hole; 733, the second batch of buckle bending position; 74, the punching position of the slot hole; 75, the punching position of the connecting hole; 761, the punching position of the first batch of knock-out holes; 762, the punching position of the second batch of knock-out holes; 763. The punching position of the third batch of knockout holes; 764, the punching position of the fourth batch of knockout holes; 77, the punching position of the die core; 78, the punching position of the positioning hole; 79, the cutting position;

8. Finished cassette; 81, mounting hole; 82, ear seat; 821, ear hole; 822, cylindrical flange; 83, buckle, 84, card slot, 85, connection hole; 86, knockout hole; 861, connection Rib; 87, U-shaped buckle at the end; 88, U-shaped buckle in the middle; 89, rectangular groove;

9. Rack; 10. Press;

100, the first group of molds; 110, the first upper mold group; 111, the mounting hole punch; 112, the positioning hole punch; 113, the connection hole punch; 114, the ear hole punch; 120, the second lower group mold;

200, the second group of molds; 210, the second upper group of molds; 211, the first batch of knockout punches; 212, the second batch of knockout punches; 213, the rib groove; 220, the second lower group of molds;

300, the third group of molds; 310, the third upper group of molds; 311, the third batch of knockout punches; 312, the fourth batch of knockout punches; 313, the ear seat hole punch; 320, the third lower module;

400, the fourth die set; 410, the fourth upper die set; 411, the slot punch; 412, the buckle punch; 420, the buckle punch; 421, the groove; 422, the first bending part;

500, the fifth die set; 510, the fifth upper die set; 520, the fifth lower die set; 521, the second bending part;

600, the sixth group mold; 610, the sixth upper mold group; 611, the mold core; 6111, the middle U-shaped groove; 6112, the end U-shaped groove; 6113, the rectangular boss; 620, the sixth lower mold group; 621 , die hole; 622, avoidance groove;

700, the seventh die set; 710, the seventh upper die set; 7101, the pressing block; 7102, the pressing material cavity; 720, the seventh lower die set; 7201, the pressing table; 7202, the pressing trough; 7203, the top Material rod; 7204, support table; 7205, retention hole.

Detailed ways

The present utility model will be further described below with reference to specific embodiments and accompanying drawings.

Example 1

As shown in Fig. 10 to Fig. 13, a wiring cassette is in the shape of a rectangular box with an opening, and is composed of a bottom plate and four side plates connected with the bottom plate. Among them, the bottom plate is provided with installation holes 81 and four knock-out holes 86; a pair of opposite two side plates are provided with two knock-out holes 86, one ear seat 82 and two connection holes 85, the ear seat 82 An ear hole 821 is provided on the upper part, and a cylindrical flange 822 is arranged below the ear hole 821. The ear hole 821 and the cylindrical flange 822 have threads; 84 and two buckles 83 on both sides of the card slot 84 . The knock-out hole 86 is the hole of the wiring cassette for wiring, which is covered with a circular plate. The circular plate is only connected to the box body through the connecting ribs 861. The knockout hole 86 comes off. The shape of such a junction cassette is relatively complex, so it is difficult to achieve high-efficiency and high-precision processing, and usually needs to be processed in multiple steps, and there is no integrated processing equipment specially used for processing such junction cassettes in the prior art.

As shown in Figures 1 to 14, a wiring cassette processing machine tool for processing the above wiring cassettes includes an upper mounting seat 1 and a lower mounting seat 2. The upper mounting seat 1 is installed on the frame 9 through a press 10, and the lower mounting seat 1 The mounting base 2 is supported and mounted on the rack 9 by the upright column 3 . A spring column 6 is arranged between the upper mounting seat 1 and the lower mounting seat 2. The spring column 6 includes a cylindrical sleeve 61 mounted on the upper mounting seat 1 and a pillar 62 mounted on the lower mounting seat 2. The lower part of the pillar 62 is sleeved with a support The spring 64, the upper part is covered with a looper 63, the relative movement between the upper mounting seat 1 and the lower mounting seat 2 is more smooth and labor-saving by supporting the spring 64.

The upper mounting seat 1 and the lower mounting seat 2 are sequentially provided with a punching and tapping module, a punching module and a forming module along the feeding direction. Among them, the punching and tapping module is used to process the mounting hole 81 , the ear seat 82 , the connecting hole 85 and the knockout hole 86 on the plate 7 ; the punching module is used to process the buckle on the plate 7 . 83 and slot 84, and punch out notches on both sides of the sheet material 7 in the width direction for subsequent forming and splicing;

As shown in Fig. 15 to Fig. 17 , the punching and tapping module is sequentially equipped with a first group of molds 100, a second group of molds 200, a tapping device 4 and a third group of molds 300 along the feeding direction. The first group mold 100 includes a first upper mold group 110 and a first lower mold group 120, and the first upper mold group 110 and the first lower mold group 120 each include three mounting plates, the same upper mold group or the same lower group mold. The mounting plates of the die are, from top to bottom, an upper mounting plate, a middle mounting plate and a lower mounting plate. A mounting hole punch 111 , a positioning hole punch 112 , a connecting hole punch 113 and an ear hole punch 114 are installed on the lower mounting plate of the first upper die set 110 , which are respectively aligned with the mounting hole punching positions 71 and positioning holes on the sheet 7 . The hole punching position 78 , the connecting hole punching position 75 and the ear hole punching position 721 correspond to each other. It is worth mentioning that the ear hole punching position 721 on the sheet material 7 is simultaneously punched and flanged by the ear hole punching head 114 to form the finished cassette 8 The ear hole 821 and the cylindrical flange 822 on the ear seat 82.

The second die set 200 includes a second upper die set 210 and a second lower die set 220, and the second upper die set 210 and the second lower die set 220 each include three mounting plates. The first batch of knock-out hole punches 211 and the second batch of knock-out hole punches 212 are both mounted on the lower mounting plate of the second upper die set 210 , respectively corresponding to the first batch of knock-out hole punching positions 761 on the sheet 7 . Corresponding to the punching position 762 of the second batch of knock-out holes.

The third die set 300 includes a third upper die set 310 and a third lower die set 320, and the third upper die set 310 and the third lower die set 320 each include three mounting plates. The third batch of knock-out hole punches 311 , the fourth batch of knock-out hole punches 312 and the ear seat hole punches 313 are all installed on the lower mounting plate of the third upper die set 310 , and are respectively connected with the third batch of punches on the sheet 7 . The punching positions 763 of the knock-out holes and the punching positions 764 of the fourth batch of knock-out holes correspond to the punching positions 723 of the ear seat holes.

The tapping device 4 is provided with an ear hole tap 41, which corresponds to the ear hole tapping position 722 on the sheet material 7, and is used for tapping the ear hole 821 and its cylindrical flange 822.

As shown in FIG. 16 , the knockout hole punch is provided with a rib groove 213 for processing the connecting ribs 861 on the knockout hole 86 to be formed later. In this embodiment, a punching and tapping module of a wiring cassette processing machine tool is used for the above wiring cassette processing machine tool. It can perform punching and tapping operations on multiple positions on the sheet material at the same time, and the processing positions are precise and improved. Processing efficiency of junction cassettes.

As shown in FIG. 18 to FIG. 24 , a fourth group of molds 400 , a fifth group of molds 500 and a sixth group of molds 600 are sequentially installed in the punching module along the feeding direction. The fourth group mold 400 includes a fourth upper mold group 410 and a fourth lower group mold 420, and the fourth upper mold group 410 and the fourth lower group mold 420 each include three mounting plates; the lower part of the fourth upper mold group 410 The slot hole punch 411 and the buckle hole punch 412 are installed on the mounting plate, which correspond to the slot hole punching position 74 and the buckle hole punching position 731 on the sheet material 7 respectively; The upper mounting plate is equipped with a first bending part 422 and a groove 421 which is matched with the slot hole punch 411 and the buckle hole punch 412, and the first bending part 422 and the first batch of buckles on the sheet The corresponding bending position 732 is used for bending the clip on one side of the plate 7 .

The fifth die set 500 includes a fifth upper die set 510 and a fifth lower die set 520. The fifth upper die set 510 and the fifth lower die set 520 each include three mounting plates; the upper mounting plate of the fifth lower die set 520 The second bending part 521 is mounted on it, which corresponds to the second batch of buckle bending positions 733 on the plate 7 and is used to bend the other unbent buckle. The shape of the buckle after bending is shown in Figure 24.

The sixth die set 600 includes a sixth upper die set 610 and a sixth lower die set 620, and the sixth upper die set 610 and the sixth lower die set 620 each include three mounting plates. A mold core 611 is provided on the lower mounting plate of the sixth upper die set 610, and a die hole 621 matched with the die core 611 is provided on the upper mounting plate of the sixth lower die set 620. The die core 611 and the die hole 621 work together The punching position 77 of the die core of the sheet metal 7 is used to punch out a notch for subsequent forming and splicing. The cross section of the mold core 611 is rectangular, a pair of middle U-shaped grooves 6112 are symmetrically arranged in the middle of one long side, and an end U-shaped groove 6111 is respectively provided on one end of the two short sides close to the other long side. The middle of the two short sides is respectively provided with a rectangular boss 6113, the end U-shaped groove 6111, the middle U-shaped groove 6112 and the rectangular boss 6113 are respectively connected with the end U-shaped buckle 87 and the middle U-shaped buckle on the finished cassette 8. 88 corresponds to the rectangular groove 89 . The upper mounting plate of the sixth lower die set 620 is also provided with an avoidance slot 622 for avoiding the buckle 83 and the slot 84 on the sheet 7 to prevent the buckle 83 and the slot 84 from affecting the sheet metal processing during processing.

The present embodiment is a punching module of a wiring cassette processing machine tool, which is used in the above wiring cassette processing machine tool. It can process a sheet into a shape that conforms to the molding of the finished cassette, and the processing position is accurate, and can simultaneously perform multiple positions on the sheet. processing, high processing efficiency.

There is a seventh group of molds 700 in the forming module. The seventh group of molds 700 includes a seventh upper group of molds 710 and a seventh lower group of molds 720. The seventh upper group of molds 710 and the seventh lower group of molds 720 work together to process the sheet into Finished cassette 8. Among them, the seventh upper die set 710 includes three mounting plates, the lower mounting plate is provided with a pressing block 7101, and four pressing material cavities 7102 are evenly distributed around the pressing block 7101. For the pressing blocks that move up and down, the upper end of each pressing block is installed on a lifting platform, and is driven by an oil cylinder to ensure that the work of each pressing block is consistent; The table 7201 and the pressing table 7201 are respectively provided with a pressing groove 7202 which is in shape with the pressing chamber 7102. The front end of the seventh lower die set 720 is provided with a material cutting device. When the forming module is working, the pressing block 7101 and the pressing table 7201 cooperate to press the sheet material 7, and the material cutting device cuts the material of the sheet material 7. The sheet material 7 is cut at the position, and the pressing block in the pressing chamber 7102 is pressed down to perform a bending operation on the cut sheet material, and the sheet material is processed into a finished cassette 8 .

In addition, the pressing table 7201 is provided with an ejector rod 7203 for ejecting the processed wiring cassette 8 from the pressing table 7201. The ejector rod 7203 can be driven by an oil cylinder, an air cylinder or a motor. motor driven. The upper part of the seventh lower die set 720 is also provided with a support table 7204 at the same height as the pressing table 7201. The support table 7204 is provided with a retaining hole 7205 for supporting and processing positioning.

The present embodiment is a punching module of a wiring cassette processing machine tool, which is used in the above wiring cassette processing machine tool. It can process a sheet into a shape that conforms to the molding of the finished cassette, and the processing position is accurate, and can simultaneously perform multiple positions on the sheet. processing, high processing efficiency.

To sum up, the junction box processing machine tool of this embodiment can continuously complete the fully automated one-time processing of the junction box, and the processed junction box has precise shape, precise hole position, and extremely high processing efficiency.

Example 2

The structure of the processing machine tool of this embodiment is basically the same as that of the junction cassette processing machine tool of the first embodiment. Positioning columns 5 are installed on both sides. The upper part of each positioning column 5 is provided with a ring groove 51 located on the same horizontal plane. The sheet material 7 passes through the ring groove 51 and is supported by the ring groove 51. between columns 5. This structure reduces the impact force when the upper and lower modules process the sheet material 7 and increases the service life of the machine tool. If the sheet metal 7 is directly placed on the lower die set for processing, it is necessary to use a large impact force to form the sheet metal 7, which is likely to cause damage to the machine tool.

Example 3

The structure of the processing machine tool of this embodiment is basically the same as that of the wiring cassette processing machine tool of the second embodiment. The difference is that the upper mounting plate and the middle mounting plate of each upper die set are connected by springs. The movement of the fuselage plays a buffering role, reducing the impact force, and on the other hand, it also makes the working movement of the upper die set smoother.

The examples of the present utility model are only to describe the preferred embodiments of the present utility model, and do not limit the concept and scope of the present utility model. Various deformations and improvements made by the scheme should all fall within the protection scope of the present invention.

Claims (10)

1. A punching module for a wiring cassette processing machine tool, comprising an upper mounting seat (1) and a lower mounting seat (2), and the upper mounting seat (1) is mounted on a frame (9) by a press (10), The lower mounting seat (2) is supported and mounted on the frame (9) by the upright column (3), and is characterized in that: the upper mounting seat (1) and the lower mounting seat (2) are sequentially equipped with a fourth seat along the feeding direction. A die set (400), a fifth die set (500) and a sixth die set (600); the fourth die set (400) is provided with a slot hole punch (411) and a snap hole punch (412) ) and a first bending part (422); a second bending part (521) is provided on the fifth group of molds (500); a mold core ( 611) and die hole (621). 2. The punching module of a junction cassette processing machine tool according to claim 1, wherein the fourth die set (400) comprises a fourth upper die set (410) and a fourth lower die set ( 420), the fourth upper die set (410) and the fourth lower die set (420) each include three mounting plates; the slot hole punch is mounted on the lower mounting plate of the fourth upper die set (410) (411) and a snap hole punch (412), and a first bending part (422) is mounted on the upper mounting plate of the fourth lower die group (420). 3. The punching module of a junction cassette processing machine tool according to claim 2, characterized in that: the upper mounting plate of the fourth lower module (420) is also provided with a slot punch ( 411) and the groove (421) matched with the snap hole punch (412). 4. The punching module of a junction cassette processing machine tool according to claim 3, wherein the fifth die set (500) comprises a fifth upper die set (510) and a fifth lower die set ( 520), the fifth upper die set (510) and the fifth lower die set (520) both include three mounting plates; the second bending part is mounted on the upper mounting plate of the fifth lower die set (520) (521). 5. The punching module of a junction cassette processing machine tool according to claim 4, wherein the sixth die group (600) comprises a sixth upper die set (610) and a sixth lower die set ( 620), the sixth upper die set (610) and the sixth lower die set (620) both include three mounting plates; the lower mounting plate of the sixth upper die set (610) is provided with a mold core (611), A die hole (621) matched with the die core (611) is provided on the upper mounting plate of the sixth lower die set (620). 6. The punching module of a junction cassette processing machine tool according to claim 5, characterized in that: the upper mounting plate of the sixth lower module (620) is also provided with a plate (7) for avoiding the plate material (7) The clip (83) on the upper part and the avoidance slot (622) of the clip slot (84). 7. The punching module of a junction cassette processing machine tool according to claim 5, characterized in that: the cross section of the core (611) is a rectangle, and a pair of middle U is symmetrically arranged in the middle of one long side. The groove (6112) has an end U-shaped groove (6111) on one end of the two short sides close to the other long side respectively, and a rectangular boss (6113) is respectively provided in the middle of the two short sides. 8 . The punching module of a junction cassette processing machine tool according to claim 7 , wherein the fourth upper die set (410), the fifth upper die set (510) and the sixth upper die set Both the upper mounting plate and the middle mounting plate in (610) are connected by springs. 9 . The punching module of a junction cassette processing machine tool according to claim 8 , wherein the fourth lower die set (420), the fifth lower die set (520) and the sixth lower die set Positioning columns (5) are installed on both sides of the upper end of the (620) along the feeding direction; the upper part of each positioning column (5) is provided with a ring groove (51) located on the same horizontal plane, and the sheet material (7) passes through the ring groove (51) and supported by the ring groove (51) between the positioning columns (5) on both sides along the feeding direction. 10. The punching module of a junction cassette processing machine tool according to any one of claims 1-9, characterized in that: between the upper mounting seat (1) and the lower mounting seat (2), a A spring column (6); the spring column (6) includes a cylindrical sleeve (61) mounted on the upper mounting seat (1) and a strut (62) mounted on the lower mounting seat (2); the strut (62) The lower part is covered with a supporting spring (64), and the upper part is covered with a looper (63).