CN104493065B - A kind of upper mould movable type bolt forming machine - Google Patents

Abstract

The invention relates to a bolt forming machine with movable upper die, which comprises a stamping machine tool, a working table is arranged in the middle of the stamping machine tool, a power output device is arranged on the upper part of the punching machine tool, an output shaft is connected to the lower end of the power output device, and the front of the working table is The first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die are installed in order from left to right on the top, and the first blanking channel and the second blanking channel are arranged on the workbench. channel and the third blanking channel, the first blanking channel, the second blanking channel, and the third blanking channel are respectively located at the first clamping forming lower die, the second clamping forming lower die, and the third clamping forming lower die Right below the die, the lower end of the output shaft is connected with an upper die. The invention has the advantages of reasonable structural design, convenient operation and high degree of automation. While realizing batch processing of bolts, the method of moving the upper mold is adopted to increase the length of bolt processing and facilitate stripping, thereby improving the efficiency of bolt processing.

Description

An upper die mobile bolt forming machine

technical field

The invention relates to the field of bolt processing, in particular to an upper mold movable bolt forming machine.

Background technique

Existing mechanical assembly and connection are inseparable from bolts. In the processing of bolts, the processing methods of cold heading and red punching are more common. For bolt cold heading processing, the existing machine tools are single-piece single-piece processing, that is, one stamping machine tool can only process one bolt at a time, which makes the processing efficiency of bolts low and cannot meet the batch production requirements of bolts; The length of some cold heading bolts has a certain limit. For bolts beyond the processing range of the machine tool, cold heading processing cannot be performed. Moreover, it is difficult to remove the material after the bolt is formed. It is easy to interfere with the upper mold during the removal, which affects the bolt's Processing efficiency brings inconvenience to bolt processing.

Contents of the invention

Aiming at the above-mentioned technologies, the present invention proposes a device with reasonable structural design, convenient operation and high degree of automation. While realizing batch processing of bolts, the method of moving the upper mold is adopted to increase the processing length of bolts and facilitate stripping. , that is, a mobile upper die bolt forming machine.

A bolt forming machine with a movable upper die, comprising a punching machine tool, a workbench is arranged in the middle of the punching machine tool, a power take-off is arranged in the upper part of the punching machine tool, an output shaft is connected to the lower end of the power take-off, the The first lower die for clamping forming, the second lower die for clamping forming and the third lower die for clamping forming are installed directly above the workbench in order from left to right. The first blanking channel, the second blanking channel and the third blanking channel, the first blanking channel, the second blanking channel, and the third blanking channel are respectively located in the first clamping forming lower mold and the second clamping forming Right below the lower mold and the third clamping forming lower mold, a material storage bucket is placed at the bottom of the stamping machine tool, and the lower ends of the first blanking channel, the second blanking channel, and the third blanking channel are all located in the storage tank. Directly above the barrel, the lower end of the output shaft is connected with an upper die, and the upper die is located directly above the first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die. Using the reciprocating movement of the upper die, the bars on the first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die are punched in sequence to form bolts, so that the operator only needs to Place the bar stock on the first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die in sequence, then stamping and forming can be automatically realized, and the automatic processing of bolts is completed; and the movement of the upper die In this way, the position of the upper mold can be staggered from the corresponding first clamping forming lower mold, the second clamping forming lower mold and the third clamping forming lower mold, so as to facilitate the loading of bars and increase the processing length of bolts , to make up for the limited length of bolt processing existing in traditional machine tools.

The first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die all include a leaf-shaped bracket, a clamping cylinder, a leaf-shaped mold, a support platform and a material guide cylinder. The fan blade-shaped bracket is fixed on the workbench, and the upper part of the fan blade-shaped bracket is evenly provided with a supporting plate, and the angle between the adjacent supporting plates is 120°, and the clamping cylinders are respectively Correspondingly installed on the supporting plate, the leaf-shaped mold is correspondingly installed on the clamping cylinder, the fan angle of the leaf-shaped mold is 120°, and the upper part of the center of the leaf-shaped mold is provided with a bolt head angle groove, the bolt head angle groove is one third of the hexagonal prism groove, an arc-shaped guide groove is provided directly below the bolt head angle groove, and a reduced-diameter arc groove is provided directly below the arc-shaped guide groove. A positioning step is provided at the junction of the arc-shaped guide groove and the reduced-diameter arc groove. The material guide cylinder is a hollow structure, and the material guide cylinder is respectively located in the first blanking channel, the second blanking channel, and the third blanking channel. Directly above the channel, the support platform is installed on the upper part of the guide cylinder. When working, the clamping cylinder will correspondingly drive the leaf-shaped molds closer to each other until the leaf-shaped molds are pieced together to form a complete bolt forming mold, and the three bolt head angle grooves are assembled to form hexagonal prism grooves for processing hexagonal bolt heads. The three arc-shaped guide grooves are used for the installation groove when the bar is placed initially, the positioning step surface surrounded by the three positioning steps is used for positioning the initially placed bar, and the three reduced-diameter arc grooves The cylindrical surface is used for reducing the diameter of the bolts. After reducing the diameter, the density of the bolts can be improved, which improves the performance of the bolts.

The upper mold includes a side-moving cylinder, a linkage plate, a sliding guide column, a slide plate, a punch, a left stroke switch, a middle stroke switch and a right stroke switch. The linkage plate is laterally fixed on the lower end of the output shaft, and the side movement The cylinder is fixed on the right end of the linkage plate, and the sliding guide column is symmetrically fixed on the linkage plate along the length direction parallel to the linkage plate. The moving cylinders are connected, the punch is fixed at the middle part of the lower end of the slide plate, the left travel switch, the middle travel switch and the right travel switch are respectively installed on the left side of the front end, the middle part of the front end and the right side of the front end of the linkage plate. The switch, the middle stroke switch and the right stroke switch are correspondingly located above the first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die respectively. Use the side-moving cylinder to drive the slide plate to move back and forth under the guidance of the sliding guide column, use the left stroke switch, middle stroke switch, and right stroke switch to control the stop position of the slide plate, and then use the power output device to output power to drive the output shaft downward. Drive the linkage plate to move down, so that the corresponding punch can be punched on the bar to complete the punching process.

The middle part of the support platform is provided with a blanking hole connected with the material guide cylinder, and the upper end surface of the support platform is flush with the lower end surface of the fan-shaped mold, so that when stamping, the support platform can be a fan-shaped mold Provides support to prevent damage to fan dies during stamping.

The beneficial effects of the present invention are: the present invention has the advantages of reasonable structural design, convenient operation and high degree of automation. While realizing batch processing of bolts, the method of moving the upper mold is adopted to increase the processing length of bolts and facilitate stripping, which makes up for the current situation. The defects of limited bolt processing length and low efficiency in the single-piece single-piece processing method of organic machine tools improve the efficiency of bolt processing.

Description of drawings

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

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the right view structural representation of the present invention;

Fig. 3 is the three-dimensional structure schematic diagram of the present invention;

Fig. 4 is a front structural schematic diagram of the first clamping forming lower mold of the present invention;

Fig. 5 is a top view structural schematic diagram of the first clamping forming lower mold of the present invention;

Fig. 6 is a schematic diagram of the three-dimensional structure of the first clamping forming lower mold of the present invention;

Fig. 7 is the schematic diagram of the three-dimensional structure of the fan blade mold of the present invention;

Fig. 8 is the schematic diagram of the front view structure of the upper mold of the present invention;

Fig. 9 is a three-dimensional structural schematic diagram 1 of the upper mold of the present invention;

Fig. 10 is a second perspective view of the upper mold of the present invention.

detailed description

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

As shown in Figures 1 to 10, a bolt forming machine with movable upper mold includes a stamping machine tool 1, a workbench 1a is provided in the middle of the stamping machine tool 1, and a power output device 1f is provided in the upper part of the stamping machine tool 1 , the lower end of the power output device 1f is connected to the output shaft 1e, and the first clamping forming lower die, the second clamping forming lower die and the second Three clamping forming lower molds, the workbench 1a is provided with a first blanking channel 1b, a second blanking channel 1c and a third blanking channel 1d, the first blanking channel 1b, the second blanking channel 1c and the third blanking channel 1d are respectively located directly below the first clamping forming lower die, the second clamping forming lower die, and the third clamping forming lower die, and the bottom of the stamping machine tool 1 is placed with a storage barrel 2. The lower ends of the first blanking channel 1b, the second blanking channel 1c, and the third blanking channel 1d are all located directly above the storage barrel 2, and the lower end of the output shaft 1e is connected with an upper die, and the The upper mold is located directly above the first clamping and forming lower mold, the second clamping and forming lower mold and the third clamping and forming lower mold. Using the reciprocating movement of the upper die, the bars on the first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die are punched in sequence to form bolts, so that the operator only needs to Place the bar stock on the first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die in sequence, then stamping and forming can be automatically realized, and the automatic processing of bolts is completed; and the movement of the upper die In this way, the position of the upper mold can be staggered from the corresponding first clamping forming lower mold, the second clamping forming lower mold and the third clamping forming lower mold, so as to facilitate the loading of bars and increase the processing length of bolts , to make up for the limited length of bolt processing existing in traditional machine tools.

The first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die all include a leaf-shaped bracket 3, a clamping cylinder 4, a leaf-shaped mold 5, a support table 6 and a guide Barrel 7, the fan-shaped bracket 3 is fixed on the workbench 1a, the top of the fan-shaped bracket 3 is uniformly provided with supporting plates 3a, and the angle between adjacent supporting plates 3a is 120°, the clamping cylinders 4 are installed on the supporting plate 3a respectively, and the blade-shaped mold 5 is correspondingly installed on the clamping cylinder 4, and the fan-shaped angle of the blade-shaped mold 5 is 120° The upper part of the center of the leaf-shaped mold 5 is provided with a bolt head angle groove 5a, and the bolt head angle groove 5a is a third hexagonal prism groove, and an arc-shaped guide groove is provided directly below the bolt head angle groove 5a 5b, a reduced-diameter arc groove 5d is provided directly below the arc-shaped guide groove 5b, a positioning step 5c is provided at the junction of the arc-shaped guide groove 5b and the reduced-diameter arc groove 5d, and the material guide cylinder 7 is hollow Structure, the material guide cylinder 7 is respectively located directly above the first blanking channel 1b, the second blanking channel 1c, and the third blanking channel 1d, and the support platform 6 is installed on the upper part of the material guide cylinder 7. When working, the clamping cylinder 4 will correspondingly drive the blade-shaped molds 5 to move closer to each other until the blade-shaped molds 5 are pieced together into a complete bolt forming mold, in which the three bolt head angle grooves 5a are pieced together to form a hexagonal bolt head. The hexagonal prism groove, the three arc-shaped guide grooves 5b are used for the installation groove when the bar is initially placed, the positioning step surface surrounded by the three positioning steps 5c is used for positioning the initially placed bar, and the three reducing diameters The cylindrical surface surrounded by the arc groove 5d is used for reducing the diameter of the bolts. After the diameter is reduced, the density of the bolts is improved, which improves the performance of the bolts.

The upper mold includes a side shift cylinder 8, a linkage plate 9, a sliding guide column 10, a slide plate 11, a punch 12, a left stroke switch 13, a middle stroke switch 14 and a right stroke switch 15, and the linkage plate 9 is laterally fixed on The lower end of the output shaft 1e, the side shift cylinder 8 is fixed on the right end of the linkage plate 9, the sliding guide post 10 is symmetrically fixed on the linkage plate 9 along the length direction parallel to the linkage plate 9, and the slide plate 11 corresponds to Slidingly fit with the sliding guide column 10, the right side of the slide plate 11 is connected with the side shift cylinder 8, the punch 12 is fixed on the middle part of the lower end of the slide plate 11, the left stroke switch 13, the middle stroke switch 14, the right stroke switch Switches 15 are respectively installed on the left side of the front end, the middle part of the front end, and the right side of the front end of the linkage plate 9. The upper part of the clamping forming lower mold and the third clamping forming lower mold. Utilize the side-moving cylinder 8 to drive the slide plate 11 to move back and forth under the guidance of the sliding guide column 10, use the left stroke switch 13, the middle stroke switch 14, and the right stroke switch 15 to control the stop position of the slide plate 11, and then use the power take-off 1f The power is output to drive the output shaft 1e downward to drive the linkage plate 9 to move downward, so that the corresponding punch 12 can be stamped on the bar to complete the stamping process.

The middle part of the support platform 6 is provided with a blanking hole 6a which communicates with the material guide cylinder 7, and the upper end surface of the support platform 6 is flush with the lower end surface of the blade-shaped mold 5, so that when stamping, the support platform 6 Support can be provided for the fan-shaped mold 5 to prevent damage to the fan-shaped mold 5 during stamping.

When in use, the operator activates the first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die, that is, the clamping cylinder 4 is first activated to drive the fan blade mold 5 to piece together, and then The bars are loaded into the installation groove formed by the arc guide groove 5b in turn, so that the first clamping forming lower die, the second clamping forming lower die and the third clamping forming lower die all have bars, and then It can be processed, start the power output device 1f to output power, drive the linkage plate 9 to drive the punch 12 to move down, and first punch the bar on the first clamping and forming lower die, so that the bar is assembled in the three bolt head angle grooves 5a The forming process of the hexagon bolt head is completed in the hexagonal prism groove formed last, and the diameter reduction processing of the bolt is completed on the cylindrical surface surrounded by the three diameter reduction arc grooves 5d, so that the hexagon bolt head and diameter reduction can be realized at one time. Processing greatly improves the efficiency of bolt processing, while the traditional processing method is to divide the hexagonal bolt head and diameter reduction into two processes, which makes the processing cycle of the bolt longer and the efficiency lower; after the first clamping and forming After the bar material on the lower mold is formed, start the power take-off 1f, lift the linkage plate 9 upwards, and keep the punch 12 away from the first clamping forming lower mold, and at the same time, start the clamping on the first clamping forming lower mold. Cylinder 4 separates the fan-shaped molds 5 from each other, so that the formed bolts fall into the blanking hole 6a, and are transported to the first blanking channel 1b under the guidance of the material guide cylinder 7, and finally transported to the storage Material bucket 2 realizes automatic blanking and collection after bolt forming, and then the clamping cylinder 4 on the lower mold for the first clamping forming drives the fan-shaped mold 5 to fit together, and the operator can place the new bar on the The first clamping molding on the lower mold to prepare for the next molding process;

Then start the side-moving cylinder 8, and drive the slide plate 11 to move to the right under the guidance of the sliding guide column 10, until the slide plate 11 touches the middle stroke switch 14, the power take-off 1f will be started again, and the linkage plate 9 will be driven to drive the stroke. The head 12 moves down to realize the stamping of the bar on the second clamping and forming lower die, and then the power take-off 1f will drive the linkage plate 9 to drive the punch 12 to move up again, so that the punch 12 is far away from the second clamping and forming lower die. mold, at the same time, start the clamping cylinder 4 on the second clamping forming lower mold, so that the blade-shaped molds 5 are separated from each other, so that the formed bolts fall into the blanking hole 6a, and the bolts in the guide cylinder 7 Under the action of guidance, it is transported into the second blanking channel 1c, and finally transported to the storage barrel 2, and then the clamping cylinder 4 on the second clamping forming lower mold drives the fan-shaped mold 5 to fit together, and the operator can Place the new bar on the second clamping lower mold to prepare for the next molding process;

Then, the side shift cylinder 8 will pull the slide plate 11 again to move to the right under the guidance of the sliding guide column 10 until the slide plate 11 touches the right travel switch 15, at this time the power take-off 1f will drive the linkage plate 9 to move down , to realize the stamping and forming of the bar on the third clamping and forming lower die. After forming, the power take-off 1f continues to drive the linkage plate 9 to move upward until it is reset. At the same time, the third clamping and forming lower die is started The clamping cylinder 4 on the top separates the fan-shaped molds 5 from each other, so that the formed bolts fall into the blanking hole 6a, and are transported to the third blanking channel 1d under the guidance of the material guide cylinder 7, and Finally, it is transported to the storage barrel 2, and then the clamping cylinder 4 on the third clamping and forming lower mold drives the fan-shaped mold 5 to fit together, and the operator can place the new bar on the third clamping and forming lower mold to prepare for the next molding process;

Start the side-moving cylinder 8 to drive the slide plate 11 to move left until the slide plate 11 touches the left stroke switch 13, so that the power take-off 1f will drive the linkage plate 9 to move down, and realize the new rod on the first clamping molding die again. Material stamping, such a cycle, can realize batch bolt processing.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and what are described in the above-mentioned embodiments and description are only the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention also has various Variations and improvements all fall within the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (2)

1. a kind of upper mould movable type bolt forming machine, including press machine (1), work is provided with the middle part of the press machine (1) Platform (1a), the top of the press machine (1) is provided with power take off (1f), and the lower end of the power take off (1f) is connected with Output shaft (1e), it is characterised in that：The surface of the workbench (1a) is sequentially installed with first according to order from left to right Clamp the lower mould of shaping, the second lower mould of clamping shaping and the 3rd and clamp mould under shaping, the workbench (1a) is provided with the first blanking Passage (1b), the second blanking channel (1c) and the 3rd blanking channel (1d), first blanking channel (1b), the second blanking channel (1c), the 3rd blanking channel (1d) correspond to and are located at first and clamp the lower mould of shaping, second clamp the lower mould of shaping, the 3rd clamp into respectively The underface of mould under type, the bottom of the press machine (1) is placed with material storage tube (2), first blanking channel (1b), second Blanking channel (1c), the lower end of the 3rd blanking channel (1d) are respectively positioned on the surface of material storage tube (2), under the output shaft (1e) End is connected with mould, and the upper mould clamps mould and the 3rd under being molded positioned at the first lower mould of clamping shaping, second and clamps the lower mould of shaping Surface；

The lower mould of first clamping shaping, second clamp mould and the 3rd under being molded and clamp the lower mould of shaping including flaabellum shape bracket (3), clamping cylinder (4), flaabellum shape mould (5), supporting table (6) and feed tube (7), the flaabellum shape bracket (3) are fixed on work On platform (1a), the top of the flaabellum shape bracket (3) is uniformly provided with supporting plate (3a), the folder between the adjacent supporting plate (3a) Angle is 120 °, and the clamping cylinder (4) corresponds to be arranged on supporting plate (3a) respectively, and flaabellum shape mould (5) correspondence is arranged on folder On tight cylinder (4), the flaabellum shape mould (5) to segment angle be 120 °, the center top of the flaabellum shape mould (5) sets There is bolt head chamfered groove (5a), the bolt head chamfered groove (5a) is 1/3rd six prism grooves, the bolt head chamfered groove (5a) It is arranged right below arc guide barrel (5b), the arc guide barrel (5b) is arranged right below undergauge arc groove (5d), the arc guide barrel (5b), the intersection of undergauge arc groove (5d) are provided with positioning step (5c), and the feed tube (7) is hollow-core construction, the feed tube (7) correspond to respectively and be located at the first blanking channel (1b), the second blanking channel (1c), the surface of the 3rd blanking channel (1d), institute State top of the supporting table (6) installed in feed tube (7)；

The upper mould includes sidesway cylinder (8), linkage board (9), sliding guide pillar (10), slide plate (11), drift (12), left travel switch (13), middle travel switch (14) and right travel switch (15), the linkage board (9) are secured transverse to the lower end of output shaft (1e), The sidesway cylinder (8) is fixed on the right-hand member of linkage board (9), and the sliding guide pillar (10) is along the length parallel to linkage board (9) Direction is symmetrically fixed on linkage board (9), and slide plate (11) correspondence is slidably matched with sliding guide pillar (10), the slide plate (11) Right side be connected with sidesway cylinder (8), the drift (12) be fixed on slide plate (11) lower end middle part, the left travel switch (13), middle travel switch (14), right travel switch (15) correspond to respectively installed in the front end left side of linkage board (9), front center, Front end right side, the left travel switch (13), middle travel switch (14), right travel switch (15) correspond to be located at the first clamping respectively Mould, the 3rd clamp the top for being molded lower mould under mould, second clamp and be molded under shaping.

2. a kind of upper mould movable type bolt forming machine according to claim 1, it is characterised in that：The supporting table (6) Middle part is provided with the material-dropping hole (6a) being connected with feed tube (7), upper surface and the flaabellum shape mould (5) of the supporting table (6) Lower surface flushes.