CN102649282B - Punching component - Google Patents

Abstract

A punching assembly, including a mounting bracket and a punching bracket fixed on the mounting bracket, a guide rod is vertically arranged on the punching bracket, and a guide rod is horizontally sleeved on the guide rod and can move up and down along the guide rod under the action of a driving source. The connecting plate and the punch seat fixed below the connecting plate, the punch seat is provided with a punch, and the punch seat is provided with a pressing block that moves up and down relative to the punch seat, and the punch protrudes and is located at the pressing position. Below the block, the die seat is located under the punch and cooperates with the punch. The punching assembly can use the pressing block to press the workpiece to be processed before punching, so that the slender and elastic workpiece to be processed can fit well with the positioning surface of the workbench, so as to ensure that the product can be processed smoothly. It ensures the quality and stability of punching, and reduces the labor intensity; at the same time, the use of detection methods such as detection pins and switches can effectively prevent the stagnation of punching components, avoid the omission of manual inspection, and further improve Increase production efficiency and reduce production costs.

Description

A die-cut component

technical field

The present invention relates to a punching assembly.

Background technique

The existing punching technology is widely used in the production of auto parts, because the punching processing technology is simple and efficient, the quality of the cut parts is stable, the material utilization rate is high, it is suitable for mass production, and it is easy to realize automation. However, in the processing technology of vehicle parts, especially the sealing strips of vehicles, many products are elongated and have cross-sections with different structures. The structures of the cross-sections are complex, and many of them are curved surfaces. caused certain difficulties.

Contents of the invention

The technical problem to be solved by the present invention is to provide a punching assembly capable of ensuring punching quality and high production efficiency.

The technical solution adopted by the present invention to solve the above technical problems is: a punching assembly, including a mounting bracket and a punching bracket fixed on the mounting bracket, characterized in that: the punching bracket is vertically provided with a guide rod, The guide rod is horizontally covered with a connecting plate that can move up and down along the guide rod due to the action of the driving source and a punch seat fixed below the connecting plate. A punch is arranged in the punch seat, and the punch seat There is a pressing block that moves up and down relative to the punch base, the punch is protruded below the pressing block, and the die base is located below the punch and cooperates with the punch .

Preferably, in order to protect the punch base and the pressing block and make the connection more stable, a punch pad is provided between the punch base and the connecting plate, and the punch pad is connected to the connecting plate and the punch The mold bases are all fixed to each other, and a pressing block backing plate is fixed above the pressing block, and the pressing block backing plate is located below the punch base and moves up and down together with the pressing block.

Preferably, the punch pads on both sides of the punch are provided with vertically arranged holes, guide posts are inserted in the holes, and the upper ends of the guide posts are fixed on the punch pads, so that The lower end of the guide post is fixed above the press block backing plate, and a spring is set on the outside of the guide post so that the press block backing plate and the pressing block always have a downward movement tendency.

In order to limit the range of upward movement of the press block backing plate relative to the punch base, the punch base is provided with a protrusion extending downward, and the press block backing plate has a groove matching the protrusion .

In order to detect the state of the punching assembly and know whether the hole has been punched well, a detection needle is vertically arranged in the punch, and the upper part of the detection needle is inserted into the vertically distributed connection hole of the pad block of the punch and limited. Located on the upward lower step surface of the connection hole, a push rod located above the lower step surface and abutting against the upper end of the detection needle is inserted into the connection hole, a plug body is connected to the upper port of the connection hole, and the push rod The top protrudes from the plug body and can move up and down along the plug body. A transverse channel connected to the upper port of the connecting hole is provided on the punch pad, and a top part connected to the push rod is inserted into the transverse channel. Matching switch, and a return spring is set on the push rod, the two ends of the return spring are respectively against the lower surface of the plug body and the lower end of the push rod, and the return spring makes all the parts below the push rod The detection pin has a constant downward trend.

In the above solution, in order to facilitate the adjustment of the spring force of the return spring, the plug body is preferably a screw plug, and the upper port of the connection hole is a screw hole threaded with the screw plug.

In order to protect each component in the punching assembly, there are side plates on both sides of the punching support.

Preferably, the punching support includes an upper horizontal support, a lower horizontal support and a vertical support connecting the upper horizontal support and the lower horizontal support, and there is a vertical connection between the upper horizontal support and the lower horizontal support near the vertical support. The above-mentioned guide rod, the driving source is an oil cylinder, which is fixed on the upper horizontal support, and the output shaft of the oil cylinder is connected with the connecting plate downward to drive the connecting plate to move up and down.

Compared with the prior art, the advantage of the present invention is that the punching assembly can use the pressing block to compress the workpiece to be processed before punching, so that the slender and elastic workpiece to be processed can be well connected with the workbench The positioning surface of the positioning surface fits together to ensure that the product can be punched smoothly, and ensures the punching quality and stability of punching, reducing labor intensity; at the same time, using detection methods such as detection needles and switches can effectively prevent punching components stagnation, to avoid the omission of manual inspection, can further improve production efficiency and reduce production costs.

Description of drawings

Figure 1 is a front view (partially in section) of the punching assembly.

Figure 2 is a front view of the lower half of the die cutter assembly.

Figure 3 is a top view of the punching assembly.

Fig. 4 is a sectional view along line A-A in Fig. 3 .

Fig. 5 is a cross-sectional view along line B-B in Fig. 3 .

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1-5, the punching assembly of the present invention includes a mounting bracket 1, and a punching bracket 3 fixed on the mounting bracket 1. The punching bracket 3 includes an upper horizontal bracket 31, a lower horizontal bracket 32 and a connecting upper horizontal bracket. The horizontal support 31 and the vertical support 33 of the lower horizontal support 32 , the vertical support 33 is located on one side of the upper horizontal support 31 and the lower horizontal support 32 , and the vertical support 32 is fixed with the mounting bracket 1 . Between the upper horizontal support 31 and the lower horizontal support 32, a guide rod 28 is vertically connected to one side near the vertical support 33, and the upper and lower ends of the guide rod 28 are installed and fixed on the upper horizontal support 31 and the lower horizontal support 32 respectively. . The guide rod 28 is connected with a connecting plate 30 through a guide sleeve 29 , the connecting plate 30 is arranged horizontally and can move up and down along the guiding rod 28 , and the guiding rod 28 is located at the rear side of the connecting plate 30 . The bottom of the connecting plate 30 is fixedly connected with a punch cushion block 19, and the punch cushion block 19 is also sleeved on the guide bar 28 to enhance the strength of the connecting plate 30. The punch cushion block 19 is connected with a punch Seat 18. An oil cylinder 26 is fixed above the upper horizontal support 31 , and the oil cylinder 26 is used as the driving source of the punching assembly, and the output shaft of the oil cylinder is fixedly connected above the connecting plate 30 downward. Driven by the oil cylinder 26 , the connecting plate 30 can move up and down along the guide rod 28 .

There is a projection 181 extending downwards in the middle of the punch seat 18, and a briquetting backing plate 15 is also provided below the punching pedestal 18 and is fixed with the briquetting backing plate 15 under the briquetting pad 15. The pressing block 13 , the pressing block backing plate 15 and the pressing block 13 can move up and down relative to the punch seat 18 under the punch seat 18 . The pressing block backing plate 15 has a groove 151 matching the protrusion 181 , the groove 151 and the protrusion 181 are used to limit the upward position of the pressing block backing plate 15 and the pressing block 13 . As shown in Figure 1, on both sides of the punch base 18, there is a guide post 35 respectively, the upper end of the guide post 35 is inserted into the punch pad 19 and the punch base 18 and fixed on the punch pad 19 , the lower end of the guide post 35 passes through the briquetting backing plate 15 and the lower end of the guide post 35 is fixed with a nut 37, the nut 37 is located below the briquetting backing plate 15, so the briquetting backing plate 15 and the pressing block The tight block 13 can move up and down along with the guide post 35 . The upper end of the guide post 35 is inserted into the hole 191 of the punch pad 19. The hole 191 is a stepped hole with a downward step surface. A spring 36 is placed on the outside of the guide post 35. The two ends of the spring 36 The ends are respectively against the stepped surface and the upper surface of the pressing block backing plate 15 . Preferably, there is also a guide sleeve 34 between the pressure block backing plate 15 and the guide post 35, the guide sleeve 34 is fixed to the pressure block backing plate 15, and the two ends of the spring 36 respectively abut against the ends of the guide sleeve 34. The upper end and the stepped surface of the hole 191. Therefore, the pressing block backing plate 15 and the pressing block 13 can move up and down along with the guide post 35, and the spring 36 makes the pressing block backing plate 15 and the pressing block 13 move downward away from the punch seat 18. the trend of.

A vertically downward punch 12 is also fixed on the punch seat 18, and the punch 12 passes through the convex block 181 below the punch seat 18 and the punch seat 18, and passes through the above-mentioned pressing block backing plate 15 and The pressing block 13 is exposed below the pressing block 13 , and a detection pin 11 is vertically inserted into the punch 12 . As shown in Figure 5, the upper end of the detection pin 11 is inserted into the vertical connection hole 192 of the punch pad 19, the connection hole 192 has two upward step surfaces, namely the upper step surface 1921 and the lower step surface 1922, the upper end of the detection needle 11 is limited to the lower step surface, and a push rod 21 is inserted into the connection hole 192 above the lower step surface 1922 in the connection hole 192, and the bottom of the push rod 21 has a protrusion with a larger diameter. The protruding ring 211 of the push rod 21 is matched with the upper end of the detection needle 11 . A plug body is connected to the upper port of the connection hole 192. In this embodiment, preferably, the upper port of the connection hole 192 is a large-aperture port to form the upper step surface, and the large-aperture port is a screw hole. The plug body is a screw plug 23 threaded in the screw hole, the push rod 21 can move up and down along the screw plug 23 and the top of the push rod 21 can protrude from the screw plug 23 . A return spring 22 is sheathed on the outside of the push rod 21 , and two ends of the return spring 22 respectively abut against the lower surface of the screw plug 23 and the collar 211 at the bottom of the push rod 21 . The position of the screw plug 23 in the connecting hole 192 can be adjusted up and down, and then the spring force of the return spring 22 can be adjusted. The return spring 22 makes the detection needle 11 under the push rod 21 have a downward tendency all the time. There is a transverse channel 193 connected to the top of the connection hole 192 on the punch pad 19, a switch 17 is inserted in the transverse channel 193, and the switch 17 is a conventional micro switch (other inductive switches can also be used) , it is fixed on the punch pad 19, and its inner side extends laterally to match with the top of the push rod 21. When the bottom of the detection pin 11 touches the workpiece a to be processed, as the punch pad 19 moves downward, the detection pin 11 moves upward along the connecting hole 192, and then the top of the push rod 21 touches the switch 17, it can be considered that the punching begins. When the detection needle 11 punches the workpiece to be processed downward with the punch 12, and the punch pad 19 starts to move upward, the detection needle 11 is due to the reset. The reset force of spring 22 moves downwards, and this push rod 21 also falls back downwards, does not touch the inboard end of this switch 17, can judge that this punching has ended. The use of detection means such as detection pins and switches can effectively prevent the stagnation of punching components, avoid the omission of manual inspection, and greatly improve production efficiency.

A die base 14 is fixed on the horizontal support 32 below, a die base 16 is arranged at a position corresponding to the punch 12 on the die base 14, and the die base 14 is connected to the punch 12 and the detection needle 11. Matching, the punch 12 and the detection pin 11 are inserted into when punching. The workpiece to be processed is placed on the die base 14 . On both sides of the punching bracket 3, there are side plates 38 respectively, and parts such as the punch cushion block 19 and the punch seat 18 are surrounded between the two side plates 38.

The punching assembly of the present invention can use the pressing block to compress the workpiece to be processed before punching, so that the slender and elastic processed workpiece can fit well with the positioning surface of the workbench, so as to ensure that the product can It is punched smoothly, which ensures the quality and stability of punching, and reduces labor intensity; at the same time, using detection methods such as detection needles and switches can effectively prevent the stagnation of punching components, avoid manual inspection omissions, and can Further improve production efficiency and reduce production costs.

Claims (8)

1. A punching assembly, including a mounting bracket (1) and a punching bracket (3) fixed on the mounting bracket (1), characterized in that: the punching bracket (3) is vertically provided with a guide rod (28), the guide rod (28) is horizontally covered with a connecting plate (30) that can move up and down along the guide rod (28) by the driving source and a punch seat fixed under the connecting plate (30) (18), the punch seat (18) is provided with a punch (12), and the lower part of the punch seat (18) is provided with a pressing block (13) that moves up and down relative to the punch seat (18). ), the punch (12) protrudes below the pressing block (13), the die seat (14) is located under the punch (12) and matches with the punch (12), A punch pad (19) is provided between the punch base (18) and the connecting plate (30), and the punch pad (19) is connected to the connecting plate (30) and the punch base ( 18) are fixed to each other, and a pressing block backing plate (15) is fixed above the pressing block (13), and the pressing block backing plate (15) is located below the punch seat (18) and Tight blocks (13) move up and down together. 2. The punching assembly according to claim 1, characterized in that: the punch pads (19) on both sides of the punch (12) are provided with vertically arranged holes (191), and the holes ( 191) A guide post (35) is inserted inside, the upper end of the guide post (35) is fixed on the punch pad (19), and the lower end of the guide post (35) is fixed on the press block pad On the plate (15), and on the outside of the guide post (35), there is a spring (36) that makes the pressing block backing plate (15) and the pressing block (13) always have a tendency to move downward. 3. The punching assembly according to claim 2, characterized in that: the hole (191) has a stepped surface, and there is a guide between the pressing block backing plate (15) and the guide post (35). sleeve (34), the guide sleeve (34) is fixed to the pressure block backing plate (15), and the two ends of the spring (36) are respectively against the upper end of the guide sleeve (34) and the stepped surface of the hole (191) superior. 4. The punching assembly according to claim 1, characterized in that: the punch seat (18) is provided with a downwardly extending projection (181), and the pressing block backing plate (15) has a The bump (181) matches the groove (151). 5. The punching assembly according to any one of claims 1-4, characterized in that: a detection needle (11) is vertically arranged inside the punch (12), and above the detection needle (11) Inserted into the vertically distributed connecting hole (192) of the punch pad (19) and limited to the upward lower step surface of the connecting hole (192), the connecting hole (192) is also inserted with a lower step The push rod (21) above the surface (1922) and against the upper end of the detection needle (11), a plug body is connected to the upper port of the connection hole (192), and the top of the push rod (21) protrudes from the Outside the plug body, it can move up and down along the plug body. The punch pad (19) is provided with a transverse channel (193) connected to the upper port of the connection hole (192), and the transverse channel (193) is inserted into the There is a switch (17) matched with the top of the push rod (21), and a return spring (22) is set on the push rod (21), and the two ends of the return spring (22) respectively abut against the plug On the lower surface of the body and the lower end of the push rod (21), the return spring (22) makes the detection needle (11) under the push rod (21) always have a downward tendency. 6. The punching assembly according to claim 5, characterized in that: the plug body is a screw plug (23), and the upper port of the connecting hole (192) is threaded with the screw plug (23) Connected screw holes. 7. The punching assembly according to any one of claims 1-4, characterized in that there are side plates (38) on both sides of the punching support (3). 8. The punching assembly according to any one of claims 1-4, characterized in that: the punching bracket (3) includes an upper horizontal bracket (31), a lower horizontal bracket (32) and a connecting upper horizontal bracket (31) and the vertical support (33) of the lower horizontal support (32), the said guide is vertically connected between the upper horizontal support (31) and the lower horizontal support (32) close to the vertical support (33) Rod (28), the drive source is an oil cylinder (26), the oil cylinder (26) is fixed above the upper horizontal support (31), and the output shaft of the oil cylinder (26) is connected downward with the connecting plate ( 30) are connected to drive the connecting plate (30) to move up and down.

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