CN207952338U - A kind of molding die of trimming bolt - Google Patents

Abstract

The utility model is related to mould applications, disclose a kind of molding die of trimming bolt, including main mould and punch die, the main mould includes main mould core, is arranged on the main mould core main mould edger, the main mould thimble being slidably connected in the main mould core and the main mould edger, the punch die includes punch die shell and the punch die edger that is arranged on punch die shell, and the utility model has the following advantages and effect：This programme utilizes new mechanical structure, and by the way that main mould and punch die is arranged, main mould and punch die carry out trimming operation to the both ends of bolt blank simultaneously so that tearing burr are not likely to produce on bolt blank, to improve the yields for the bolt produced.

Description

A molding die for trimming bolts

technical field

The utility model relates to a mold, more specifically, it relates to a forming mold for trimming bolts.

Background technique

In the production process of bolts, it is generally necessary to cut the head of the bolt blank after being upset by the upsetting machine into a hexagonal head shape to facilitate fastening.

At present, the edge trimming generally adopts the single-cut process, but the single-cut molding will cause a tear band at the bottom cut, forming burrs, which will have a certain impact on the appearance of the product, especially for appearance parts with high appearance requirements. Fatal impact, resulting in high production costs and low yield.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a molding die for edge-trimming bolts, which has the effect of improving the yield of good products.

In order to achieve the above object, the utility model provides the following technical solutions: a molding die for trimming bolts, including a main die and a punching die, the main die includes a main die core, a main die cutting die set on the main die core A side die, a main die ejector pin slidingly connected in the main die core and the main die cutting side die, the die includes a die housing and a die cutting die disposed on the die housing.

By adopting the above technical scheme, the worker puts the bolt blank on the main die trimming die, and then makes the die close to the main die. The edge of the workpiece is not easy to produce tearing burrs. Afterwards, the worker drives the bolt blank to move towards the punching die cutting die through the thimble of the main die, so that the waste leaves the bolt blank, and then the punching die cutting die leaves the main die cutting die. Under the action of its own gravity, it leaves the die and trimming die to realize blanking, which reduces the impact on the appearance of the product and improves the yield of good products.

The utility model is further set as: the main mold also includes a main mold shell sleeved on the main mold cutting side mold and the main mold core, sleeved on the main mold core and threaded with the main mold shell The connecting fixed ring, the main mold core is provided with a positioning groove, and the positioning groove is in conflict with the fixed ring.

By adopting the above-mentioned technical scheme, the worker puts the fixing ring against the positioning groove, so that the position of the main mold core is fixed, and then the worker rotates the fixing ring, so that the fixing ring is relatively firmly fixed on the main mold shell. When the blank is processed, due to the positioning of the fixing ring, the main formwork is not easy to move, so that the quality of the processed bolts is better.

The utility model is further configured as follows: the main die trimming die includes a trimming die coat arranged on the main die core, a trimming die core fixedly connected to the trimming die coat, and the trimming die The core, the main mold thimble and the main mold core are arranged coaxially.

By adopting the above-mentioned technical scheme, the trimming die jacket fixes the position of the trimming die core, and the trimming die core performs trimming operation on one side of the bolt, and the trimming die core, main die thimble and main die core The coaxial setting enables the thimble of the main mold to push the bolt blank relatively smoothly, which improves the production efficiency.

The utility model is further set as: a fixing mechanism is arranged between the trimming die outer cover and the main mold shell, and the fixing mechanism includes a fixed inclined surface set on the main mold shell, a fixed slope set on the trimming die The pressing inclined surface on the jacket, the fixing inclined surface and the pressing inclined surface cooperate with each other.

By adopting the above technical scheme, the fixed slope and the pressing slope cooperate with each other, so that the relative movement between the trimming die outer cover and the main form shell is not easy to occur, and when the main die top is pushed against the bolt blank, the trimming die outer cover is not easy to be moved Driven by the parts, reduce the probability of mold failure.

The utility model is further set as: an interference ring is integrally provided at the end of the trimming die jacket away from the main mold core, and the total thickness of the interference ring and the trimming die jacket is greater than the thickness of the trimming die core , an accommodating space for accommodating bolt blanks is formed between the interference ring and the trimming core.

By adopting the above technical solution, the position of the punching die is limited by the interference ring, and the bolt blank can be accommodated in the accommodating space, so that the cutting die jacket can perform a relatively sufficient trimming operation on the bolt blank, and the quality of trimming is improved.

The utility model is further configured as follows: the die trimming die includes a trimming die body fixedly connected to the die housing, a trimming hole opened on the trimming die body, and the trimming die body faces the punching die A receiving hole is opened on one side of the housing, and the receiving hole communicates with the edge cutting hole.

By adopting the above-mentioned technical scheme, when the main form ejector pin pushes the bolt blank, the bolt blank moves in the trimming hole, so that the waste material leaves the bolt blank, and the subsequent accommodating hole can hold the part of the bolt blank that leaves the trimming hole. Accommodating makes most areas of the bolt blank move in the trimming hole, which improves the quality of the trimming and improves the yield rate of the produced bolts.

In summary, the utility model has the following beneficial effects:

1. By setting the interference ring, the accommodation space and the trimming hole, the main mold and the punching die can simultaneously trim the two ends of the bolt blank, so that the bolt blank is not easy to produce tearing burrs, thereby improving the produced bolts. yield rate;

2. By setting the fixing mechanism, fixing ring and positioning groove, the fixing ring and the positioning groove cooperate with each other, making it difficult for the main mold core to move. The trimming die coat is relatively stable on the main formwork shell, so that the internal structure of the entire main formwork is relatively stable and is not prone to failure. At the same time, the main formwork can be disassembled by releasing the fixation between the fixing ring and the main formwork shell. It facilitates the replacement of the main die cutting side die.

Description of drawings

Fig. 1 is the internal structure sectional schematic diagram of the present utility model;

Fig. 2 is an enlarged view of A in Fig. 1, showing the connection structure between the main mold core and the main mold shell.

Reference signs: 1, main mold; 11, main mold trimming side mold; 111, trimming mold jacket; 112, trimming mold core; 113, interference ring; 114, accommodation space; 115, second through hole; 12 1. Main mold core; 121. Positioning groove; 122. First through hole; 13. Fixed ring; 14. Main mold thimble; 15. Main mold shell; 2. Die; 21. Die shell; 221, the main body of the trimming die; 222, the trimming hole; 223, the accommodation hole; 3, the fixing mechanism; 31, the fixed slope; 32, the tight slope.

Detailed ways

The utility model will be further described with reference to the accompanying drawings.

As shown in Figure 1 and Figure 2, a molding die for trimming bolts includes a main mold 1 and a die 2, and the main mold 1 includes a main mold trimming mold 11, a main mold core 12, a main mold shell 15, and a fixing ring 13 And master mold thimble 14. The main mold core 12 is covered with a main mold shell 15, and one end of the main mold core 12 is provided with a positioning groove 121, and the positioning groove 121 and the fixed ring 13 are in conflict with the side of the main mold core 12, and the outer wall of the fixed ring 13 is in contact with the main mold core 12. Formwork 15 threaded connections.

The main die trimming die 11 comprises a trimming die jacket 111 and a trimming die core 112, the trimming die jacket 111 is set on the trimming die core 112 and is fixedly connected with the trimming die core 112, and the trimming die jacket 111 and the trimming die core 112 are in conflict with the main die core 12 toward one end of the main die core 12, and the end of the trimming die cover 111 away from the main die core 12 is fixedly connected with a conflicting ring 113, and the conflicting ring 113 and the trimming die cover 111 The total thickness is greater than the thickness of the trimming mold core 112, and an accommodation space 114 is formed between the conflicting ring 113 and the trimming mold core 112.

Trimming die overcoat 111 is fixedly connected with main mold shell 15 by fixing mechanism 3, and fixing mechanism 3 comprises fixed slope 31 and abutting slope 32, and main mold shell 15 is provided with fixed slope 31 toward the side of trimming mold overcoat 111, fixes The inclined surface 31 faces the main mold core 12, and the abutting inclined surface 32 is provided on the side of the trimming die outer casing 111 facing the main mold shell 15, and the fixed inclined surface 31 and the abutting inclined surface 32 cooperate with each other. The main mold core 12 is provided with a first through hole 122, and the trimming mold core 112 is provided with a second through hole 115. The first through hole 122 and the second through hole 115 are coaxially arranged and communicated with each other. The main mold thimble 14 The sliding connection is in the first through hole 122 and the second through hole 115 .

The die 2 includes a die housing 21 and a die trimming die 22. One end of the die housing 21 is provided with a fixing groove 211, and the die trimming die 22 is fixedly connected in the fixing groove 211. The die trimming die 22 includes a trimming die main body 221 And trimming hole 222, trimming die main body 221 is fixedly connected in fixed groove 211, and trimming hole 222 is offered at the end of trimming die main body 221 far away from die housing 21, and trimming die main body 221 is close to the end of die housing 21 An accommodating hole 223 is opened, and the accommodating hole 223 communicates with the trimming hole 222 .

To sum up, the worker puts the bolt blank into the second through hole 115. At this time, one end of the thimble 14 of the main mold is located in the second through hole 115 to tighten the bolt blank, and then the worker drives the die 2 toward The bolt blank approaches, the trimming die main body 221 presses against one end of the bolt blank, the trimming die outer cover 111 presses against the other end of the bolt blank, and the die 2 continues to move, driving the trimming die main body 221 to exert pressure on the bolt blank, The trimming die main body 221 and the trimming die overcoat 111 simultaneously trim the bolt blank so that tearing burrs are not easily produced on the bolt blank. When the trimming die body 221 is in contact with the conflicting ring 113 , one end of the bolt blank is located in the accommodation space 114 , and the other end is located in the trimming hole 222 . Then the workman drives the main mold thimble 14 to move, and the bolt blank moves along the trimming hole 222 under the promotion of the main mold thimble 14, so that the bolt blank is separated from the waste material, and enters in the receiving hole 223. Afterwards, the worker takes the punching die 2 away from the main die 1, and the bolt blank that has been trimmed leaves the main die 1 and the punching die 2 under the action of its own gravity to realize blanking.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (6)

1. A molding die for trimming bolts, characterized in that it includes a main mold (1) and a die (2), the main mold (1) includes a main mold core (12), and is arranged on the main mold core ( 12) on the main die cutting side die (11), slidingly connected to the main die core (12) and the main die ejector pin (14) in the main die cutting side die (11), the die (2) It includes a die housing (21) and a die trimming die (22) arranged on the die housing (21). 2. A molding die for trimming bolts according to claim 1, characterized in that: the main die (1) also includes a trimming die (11) and a main die core (12) sleeved on the main die ) on the main formwork (15), the fixing ring (13) sleeved on the main formwork (12) and threaded with the main formwork (15), on the main formwork (12) A positioning groove (121) is provided, and the positioning groove (121) interferes with the fixing ring (13). 3. A molding die for trimming bolts according to claim 2, characterized in that: the main die trimming die (11) includes a trimming die outer cover ( 111), the trimming die core (112) that is fixedly connected to the trimming die jacket (111), the trimming die core (112), the main die thimble (14) and the main die core (12) are coaxial set up. 4. A molding die for trimming bolts according to claim 3, characterized in that: a fixing mechanism (3) is provided between the trimming die outer casing (111) and the main formwork (15), The fixing mechanism (3) includes a fixed inclined surface (31) provided on the main formwork (15), a pressing inclined surface (32) provided on the trimming die outer casing (111), and the fixed inclined surface (31) and the abutting slope (32) cooperate with each other. 5. A molding die for edge-trimming bolts according to claim 4, characterized in that: the end of the edge-trimming die jacket (111) away from the main mold core (12) is integrally provided with an interference ring (113), The total thickness of the conflicting ring (113) and the trimming die jacket (111) is greater than the thickness of the trimming die core (112), and the conflicting ring (113) and the trimming die core ( 112) to form accommodating space (114) for accommodating bolt blanks. 6. A molding die for trimming bolts according to claim 1, characterized in that: the die trimming die (22) includes a trimming die body (221) fixedly connected to the die housing (21), The edge trimming hole (222) provided on the trimming die main body (221), the trimming die main body (221) is provided with a receiving hole (223) on the side facing the die housing (21), the The accommodating hole (223) communicates with the trimming hole (222).