Inverted composite fine cutting die for hot forging

Abstract

The utility model relates to the technical field of hot forge piece processing, and provides an inverted composite fine cutting die for a hot forge piece, which comprises a workbench, a punching table, a punch, a pressure head die holder and the like, and the pressure head die holder consists of a top seat, a punching male die, a trimming male die and a movable block. The movable block is slidably connected with the trimming male die, a through hole is formed in the movable block, and the bottom of the punching male die is movably connected into the through hole of the movable block. And the telescopic rod is connected above the movable block and moves relative to the punching male die and the trimming male die when being stressed, so that the durability of the die and the quality of a workpiece are improved. A guide column and a spring are arranged on the outer side of the punch to provide buffering and guiding effects. According to the die, the trimming function and the punching function are integrated, the waste channel is formed in the workbench, punching waste is collected, clean production is facilitated, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot forging processing technical field, concretely relates to a hot forging's upside -down compound fine cutting die. BACKGROUND

[0002] In the traditional hot forging production process, the trimming and punching process often need to be carried out respectively, which not only increases the production cost, but also prolongs the production cycle, and needs many equipment, causes the production line to be long, the labor intensity to be big, the productivity to be low and the production cost to be high. The trimming and punching use two sets of molds respectively, need two sets of equipment, the production cost is high, the production line is long, and the labor intensity is big after punching. And two sets of molds, the cost is higher.

[0003] The patent with the application number CN202322028372.2 discloses a trimming and punching composite die special for flat link chain, which realizes trimming and punching at the same time, but the trimming die is placed below the workbench, which causes the punching skin to be left in the die, and manual clamping of the punching skin is needed, which needs a lot of manual operation and processing, and the production efficiency needs to be improved.

[0004] Therefore, it is of great significance to design the upside -down compound fine cutting die of hot forging to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the problems in the background art, the utility model provides an upside -down compound fine cutting die of hot forging, which comprises a workbench and a punching table installed on the workbench, a punch for fixing a workpiece blank is installed on the punching table, a pressure head die holder is arranged above the punch, the pressure head die holder comprises a top seat and a punching convex die, a trimming convex die and a movable block installed below the top seat; the trimming convex die is fixedly connected with the top seat, a through hole is formed in the trimming convex die, and the movable block is installed in the through hole of the trimming convex die and is in sliding connection with the trimming convex die; a through hole is formed in the movable block; the punching convex die is fixedly connected to the top seat at the top and movably connected to the through hole of the movable block at the bottom.

[0006] A telescopic rod is connected to the top of the movable block, the bottom of the telescopic rod is connected to the movable block, and the movable block moves relatively with the punching convex die and the trimming convex die under the action of the telescopic rod when the movable block is stressed.

[0007] In the preferred scheme, a connecting beam is installed on the movable block, and the telescopic rod is connected to the connecting beam.

[0008] In the preferred scheme, the punching convex die is in the shape of a cylindrical structure, and two punching convex dies are provided, and the two punching convex dies are connected to the connecting beam.

[0009] In the preferred scheme, a guide column is arranged outside the punch on the punching table, and a spring is sleeved on the guide column.

[0010] In a preferred solution, four guide columns are arranged on the punch outer side and evenly distributed at intervals of 90°.

[0011] The utility model discloses the beneficial effects reached are:

[0012] Firstly, the utility model discloses a press head die holder including a top seat, a punching punch, an edge cutting punch and a movable block, integrates the edge cutting and punching functions, avoids the complicated process of needing to use two sets of molds respectively for edge cutting and punching in the traditional method, the movable block is connected with the top seat through the telescopic link, the telescopic link is connected above the movable block, the force movement of the movable block avoids unnecessary pressure of the movable block to the workpiece main body, improves the durability and service life of the mold.

[0013] Secondly, the punch outer side is provided with guide columns, and springs are sleeved on the guide columns to provide buffering and guiding effects for the edge cutting punch.

[0014] Thirdly, a waste channel is arranged in the workbench to collect the waste produced by punching. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the sectional structure schematic diagram of Figure 1 .

[0017] Mark in the drawing:

[0018] 1, press head die holder;11, top seat;12, punching punch;13, edge cutting punch;14, movable block;2, telescopic link;3, connecting beam;4, punch table;41, base;42, punch;43, guide column;44, spring;5, workbench;51, waste channel;6, workpiece blank;61, burr;62, round edge. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely examples. The present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] The utility model discloses an inverted composite finishing die for hot forgings, which is used to process a workpiece blank 6. The workpiece blank 6 includes a workpiece body having excess flash 61 on the outside and excess rounded edges 62 on the inside. The utility model is used to finish-cut away the flash 61 of the workpiece blank 6 and flush out the rounded edges 62 inside the workpiece. Simultaneously, the flushed rounded edges 62 are quickly collected through a waste channel 51, and the cut flash 61 falls onto a workbench 5 for convenient disposal.

[0021] Reference Figure 1-Figure 2 The utility model relates to an inverted composite precision cutting die for hot forgings, which is mainly composed of a workbench 5, a punching platform 4, a punch 42, a pressure head die base 1, a telescopic rod 2, a connecting beam 3, a guide column 43, a spring 44 and a waste channel 51. The pressure head die base 1 is located above the punching platform 4 and includes a top seat 11, a punching punch 12, a trimming punch 13 and a movable block 14. The punching punch 12 and the trimming punch 13 are respectively installed under the top seat 11, and the movable block 14 is slidably connected to the through hole of the trimming punch 13. A punch 42 is provided on the punching platform 4 for fixing the workpiece blank 6, and a guide column 43 and a spring 44 are also provided on the outside thereof to provide buffering and guidance. A waste channel 51 is provided inside the workbench 5 for collecting waste generated by punching. The punching platform 4 is installed on the workbench 5, and the punch 42 is fixed on the punching platform 4. The top seat 11 of the ram die holder 1 is located above the punch 42. The top of the punching punch 12 is fixedly connected to the top seat 11, and the bottom is movably connected to the through hole opened by the movable block 14. The trimming punch 13 is fixedly connected to the top seat 11, and the movable block 14 is slidably connected to the through hole of the trimming punch 13 and is connected to the telescopic rod 2 through the connecting beam 3. The top of the telescopic rod 2 is fixedly connected to the top seat 11, and the bottom is connected to the movable block 14, so that the movable block 14 can move relative to the punching punch 12 and the trimming punch 13 under the action of the telescopic rod 2 when subjected to force. In addition, the guide column 43 arranged on the outside of the punch 42 is covered with a spring 44 to provide buffering and guiding effects for the trimming punch 13. The waste channel 51 is arranged inside the workbench 5 to collect waste generated by punching.

[0022] The working process of the inverted composite precision cutting die for hot forgings of the utility model is as follows:

[0023] The workpiece blank 6 is placed on the punching platform 4 and fixed by the punch 42. The ram die holder 1 is located above the workpiece blank 6, and the punching punch 12, the trimming punch 13 and the movable block 14 are in the initial position.

[0024] When the ram die holder 1 moves downwards driven by the driving mechanism, the punching punch 12 , the trimming punch 13 and the movable block 14 begin to contact the workpiece blank 6 .

[0025] The movable block 14 contacts the workpiece body. Under the reaction force of the workpiece body, the telescopic rod 2 is compressed, and the movable block 14, the punching punch 12, and the trimming punch 13 move upward relative to each other, thereby preventing the movable block 14 from exerting pressure on the workpiece body.

[0026] The punching punch 12 is driven by the pressure head die base 1 to punch down the workpiece blank 6, and the round edge 62 inside the workpiece body is flushed out. The flushed round edge 62 waste is quickly collected through the waste channel 51.

[0027] At the same time, the trimming punch 13 is driven downward by the pressure head die holder 1 to finely cut the flash 61 on the outside of the workpiece body. During this process, the guide column 43 and the spring 44 provide buffering and guidance for the trimming punch 13.

[0028] After the punching is completed, the ram die holder 1 rises, and the punching punch 12 and the trimming punch 13 leave the workpiece blank 6. The waste material of the punched round edge 62 has been collected through the waste channel 51, and the cut flash 61 falls on the workbench 5 for subsequent processing.

[0029] Take out the processed workpiece, put in a new workpiece blank 6, and repeat the above stamping process.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An inverted composite precision cutting die for hot forgings, comprising a workbench and a punching platform mounted on the workbench, a punch for fixing a workpiece blank mounted on the punching platform, and a press die seat disposed above the punch, characterized in that: The press head die base includes a top base and a punching punch, a trimming punch and a movable block installed below the top base; the trimming punch is fixedly connected to the top base and has a through hole formed therein; the movable block is installed in the through hole formed in the trimming punch and is slidably connected to the trimming punch; the movable block has a through hole formed therein; the top of the punching punch is fixedly connected to the top base, and the bottom is movably connected to the through hole formed in the movable block; A telescopic rod is connected above the movable block, the top of the telescopic rod is fixedly connected to the top seat, and the bottom is connected to the movable block. When the movable block is subjected to force, under the action of the telescopic rod, the movable block and the punching punch and the trimming punch move relative to each other.

2. The inverted composite precision cutting die for hot forgings according to claim 1, characterized in that: A connecting beam is installed on the movable block, and the telescopic rod is connected to the connecting beam.

3. The inverted composite precision cutting die for hot forgings according to claim 2, characterized in that: The punching punch is a columnar structure, and two punches are provided. Both punching punches are connected to the connecting beam.

4. The inverted composite precision cutting die for hot forgings according to claim 1, characterized in that: A guide column is arranged on the outer side of the punch on the punching platform, and a spring is sleeved on the guide column.

5. The inverted composite finishing die for hot forgings according to claim 4, characterized in that: There are four guide pillars, which are evenly distributed at 90° intervals on the outside of the punch.

6. The inverted composite precision cutting die for hot forgings according to claim 1, characterized in that: A waste channel is provided inside the workbench below the punch.

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