Stamping device for cold extrusion

Abstract

The utility model relates to the field of cold extrusion, in particular to a stamping device for cold extrusion, which comprises a cold extrusion I-shaped seat used for placing a die and a metal blank, a fixed sliding chute arranged above the cold extrusion I-shaped seat and used for driving the cold extrusion die to adjust the position, and a fixed sliding block movably connected inside the fixed sliding chute. The metal blank cold extrusion device is provided with the platen, the positioning bolt, the fastening bolt, the cold extrusion die, the manual supporting rod, the fixing knob and the damping reset rod, and when the metal blank cold extrusion device is used for cold extrusion production of a metal blank, the cold extrusion die can be selected according to the size of the current metal blank and the height of the selected cold extrusion die; the height of the damping reset rods is adjusted through the manual supporting rods by twisting the fixing rotary knobs, the damping reset rods are made to be consistent with the cold extrusion die in height, and therefore when the stamping head descends for stamping, the descending trend of the stamping head is relieved through the four sets of damping reset rods, and the stamping head descends at a constant speed to conduct cold extrusion work on a metal blank.

Description

Technical Field

[0001] The utility model relates to the field of cold extrusion, in particular to a punching device for cold extrusion. Background Art

[0002] Cold extrusion is a processing method in which a metal blank is placed in a cold extrusion die cavity, and at room temperature, pressure is applied to the blank through a punch fixed on a press to cause plastic deformation of the metal blank to obtain parts. my country has been able to cold extrude metals such as lead, tin, aluminum, copper, zinc and their alloys, low-carbon steel, medium-carbon steel, tool steel, low-alloy steel and stainless steel, and even cold extrusion of a certain amount of deformation can be performed on bearing steel, high-carbon high-aluminum alloy tool steel, high-speed steel, etc. In terms of extrusion equipment, my country has the ability to design and manufacture extrusion presses of various tonnages. In addition to using general mechanical presses, hydraulic presses, and cold extrusion presses, friction presses and high-speed and high-energy equipment have also been successfully used for cold extrusion production. In the cold extrusion process, a stamping device is needed. Stamping equipment is a machine tool used to manufacture parts and assemblies. It produces the desired shape by applying pressure to metal sheets, including forming, shearing, protruding, punching and flanging operations.

[0003] After searching, a pot rack cold extrusion device with publication number CN213350240U is found, which specifically discloses a pot rack cold extrusion device, including a storage box, the top of the storage box is fixedly connected with an extrusion platform, the top of the extrusion platform is fixedly connected with guide rods on all sides, the top of the guide rods is fixedly connected with a top plate, the top of the top plate is fixedly connected with a hydraulic cylinder, the output shaft of the hydraulic cylinder is fixedly connected with a slide plate located on the outer surface of the guide rods, the bottom of the slide plate is fixedly connected with an upper mold, the top of the extrusion platform is movably connected with a bottom plate, the top of the bottom plate is fixedly connected with a mold, the left and right ends of the top of the extrusion platform are movably connected with a mounting plate by mounting bolts, and the top of the mounting plate is fixedly connected with a bracket. The pot rack cold extrusion device has a simple overall structure, which is not only convenient for taking out the formed pot rack, but also convenient for disassembly and maintenance of the mold, and convenient for replacing molds of different sizes. It is simple to operate, has a wide range of applications, and is easy to use.

[0004] During the use of the existing cold extrusion stamping device, due to the different sizes of metal blanks for cold extrusion stamping, the required cold extrusion dies are also different. When the hydraulic cylinder drives the punch head to descend, if the bottom die has no protective buffering ability, the punch head will descend too quickly. If the punch is over-punched, it will cause certain losses to the cold extrusion die. In addition, the above-mentioned comparative case also lacks a method for buffering and protecting the punch head. In this way, under long-term use, if the punch is over-punched due to operational errors, not only the loss of the die is increased, but also the punch head is caused to malfunction, thereby delaying the overall cold extrusion time.

[0005] Therefore, it is necessary to invent a cold extrusion punching device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a stamping device for cold extrusion, which realizes four groups of damping reset rods to alleviate the downward trend of the punch head through a table, a positioning bolt, a fastening bolt, a cold extrusion die, a manual support rod, a fixing knob and a damping reset rod, so as to allow the punch head to descend at a uniform speed to perform cold extrusion on the metal blank. At the same time, when the punch head punches too much, the manual support rod can resist the punching plate to reduce the loss of the cold extrusion die caused by the punch head. In this way, the coordinated use not only reduces the loss of the die, but also brings guarantee to the punch head when performing cold extrusion, thereby ensuring the overall cold extrusion timeliness effect of the device. , in order to solve the problem that in the prior art, during the use of the cold extrusion stamping device, due to the different sizes of metal blanks for cold extrusion stamping, the required cold extrusion dies are also different. When the hydraulic cylinder drives the punch head to descend, if the bottom die has no protective buffering ability, the punch head will descend too quickly. If the punching is over-punched, it will cause certain losses to the cold extrusion die. In addition, the above-mentioned comparative case also lacks a method for buffering and protecting the punch head. In this way, under long-term use, if the punching is over-punched due to operational errors, not only the loss of the die is increased, but also the punch head is caused to malfunction, thereby delaying the overall cold extrusion timeliness problem.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a cold extrusion punching device, including a cold extrusion I-beam seat for placing a die and a metal blank;

[0008] A fixed slide is arranged above the cold extrusion I-beam seat, and is used to drive the cold extrusion die to adjust its position, and a fixed slider is movably connected inside the fixed slide, a table is fixedly installed at one end of the fixed slider, a positioning bolt is arranged above the table, a fastening bolt penetrates the surface of the table, and one end of the fastening bolt is movably connected to the cold extrusion die;

[0009] A manual support rod is arranged above the table and is used to provide stamping protection capability for the cold extrusion die. A fixed knob is passed through the outside of the manual support rod, and a damping reset rod is fixedly installed on the top of the manual support rod.

[0010] The support column is arranged above the cold extrusion I-shaped seat and is used to support and install the punching table. The outside of the support column is provided with an outer column sleeve, the outside of the outer column sleeve is penetrated by a connecting screw, and the punching table is arranged below the outer column sleeve.

[0011] Preferably, a fixing bolt penetrates the outside of the cold-extruded I-shaped seat, and one end of the fixing bolt is movably connected to a side protective plate.

[0012] Preferably, the table is slidably connected to the cold-extruded I-shaped seat, and the inner dimension of the fixed slide groove is consistent with the outer dimension of the fixed slide block.

[0013] Preferably, the cold extrusion die is threadedly connected to the table, and the manual support rod and the damping reset rod are vertically distributed.

[0014] Preferably, a hydraulic cylinder is arranged above the punching table, a hydraulic rod is movably connected inside the hydraulic cylinder, and a punching plate is fixedly mounted on one end of the hydraulic rod.

[0015] Preferably, a stamping sleeve is fixedly mounted on the bottom of the stamping disk, a docking joint is provided on one side of the stamping sleeve, a threaded rod penetrates the outside of the stamping sleeve, and a stamping head is fixedly mounted on one end of the threaded rod.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] The utility model is provided with a table, a positioning bolt, a fastening bolt, a cold extrusion die, a manual support rod, a fixing knob and a damping reset rod. When the device is used to perform cold extrusion production on a metal blank, the fixing knob can be twisted to adjust the height of the damping reset rod through the manual support rod according to the size of the current metal blank and the height of the selected cold extrusion die, so that the damping reset rod is consistent with the height of the cold extrusion die. In this way, when the punch head descends for punching, the four groups of damping reset rods alleviate the downward trend of the punch head, so that the punch head descends at a uniform speed to perform cold extrusion on the metal blank. At the same time, when the punch head punches too much, the manual support rod can resist the punching plate to reduce the loss of the cold extrusion die caused by the punch head. In this way, the coordinated use not only reduces the loss of the die, but also brings guarantee to the punch head when performing cold extrusion, thereby ensuring the overall cold extrusion timeliness of the device.

[0018] The utility model is provided with a fixed slide groove, a fixed slider, a table, a positioning bolt, a stamping plate, a stamping sleeve, a threaded rod and a stamping head. When the device is used to perform cold extrusion production on a metal blank, a matching stamping head can be replaced on the stamping sleeve through the threaded rod according to the current difference of the metal blank and the selected cold extrusion die, so as to meet the cold extrusion work of different metal blanks. Moreover, before the cold extrusion work, the table can be driven to move through the fixed slide groove and the fixed slider, so as to complete the fine adjustment of the position of the cold extrusion die, so that the cold extrusion die cooperates with the stamping head, and the occurrence of stamping dislocation in the cold extrusion production is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the table structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the cold extrusion die structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the punching table of the utility model;

[0024] Figure 5 It is a schematic diagram of the punch head structure of the utility model.

[0025] Description of reference numerals:

[0026] 1. Cold extrusion I-beam; 2. Fixing bolts; 3. Side protection plate; 4. Fixed slide; 5. Fixed slider; 6. Table; 7. Positioning bolts; 8. Fastening bolts; 9. Cold extrusion die; 10. Manual support rod; 11. Fixing knob; 12. Damping reset rod; 13. Support column; 14. Outer column sleeve; 15. Connecting screw; 16. Stamping table; 17. Hydraulic cylinder; 18. Hydraulic rod; 19. Stamping plate; 20. Stamping sleeve; 21. Butt joint; 22. Threaded rod; 23. Stamping head. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figure 1-5 A cold extrusion punching device shown includes a cold extrusion I-beam seat 1 for placing a die and a metal blank;

[0029] A fixed slide 4 is arranged above the cold extrusion I-shaped seat 1, and is used to drive the cold extrusion die 9 to adjust its position, and a fixed slider 5 is movably connected inside the fixed slide 4, a table 6 is fixedly installed at one end of the fixed slider 5, a positioning bolt 7 is arranged above the table 6, a fastening bolt 8 penetrates the surface of the table 6, and one end of the fastening bolt 8 is movably connected to the cold extrusion die 9;

[0030] A manual support rod 10 is arranged above the table 6 to provide stamping protection for the cold extrusion die 9, and a fixing knob 11 is passed through the outside of the manual support rod 10, and a damping reset rod 12 is fixedly installed on the top of the manual support rod 10;

[0031] A support column 13 is arranged above the cold extrusion I-beam 1 and is used to support and install a punching table 16. An outer column sleeve 14 is arranged on the outside of the support column 13. A connecting screw 15 penetrates the outside of the outer column sleeve 14. A punching table 16 is arranged below the outer column sleeve 14. When the punch head 23 descends for punching, four groups of damping reset rods 12 alleviate the downward trend of the punch head 23, allowing the punch head 23 to descend at a uniform speed to perform cold extrusion on the metal blank. At the same time, when the punch head 23 over-punches, the manual support rod 10 can resist the punching plate 19 to reduce the loss of the cold extrusion die 9 caused by the punch head 23.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, a fixing bolt 2 penetrates the outside of the cold extrusion I-beam seat 1, and one end of the fixing bolt 2 is movably connected to a side guard plate 3. The side guard plate 3 can provide a certain degree of protection for the cold extrusion stamping device at both sides of the cold extrusion I-beam seat 1 during operation. The table 6 is slidably connected to the cold extrusion I-beam seat 1, and the internal dimensions of the fixed slide 4 coincide with the external dimensions of the fixed slider 5. Before the cold extrusion work, the table 6 is driven to move by the fixed slide 4 and the fixed slider 5, thereby completing the fine adjustment of the position of the cold extrusion die 9, allowing the cold extrusion die 9 to cooperate with the punch head 23 to avoid the occurrence of stamping dislocation during cold extrusion production. The cold extrusion die 9 is threadedly connected to the table 6, and the manual support rod 10 and the damping reset rod 12 are vertically distributed. According to the size of the current metal blank and the height of the selected cold extrusion die 9, the fixing knob 11 can be twisted to adjust the height of the damping reset rod 12 through the manual support rod 10, so that the damping reset rod 12 is consistent with the height of the cold extrusion die 9.

[0033] like Figure 1 , Figure 4 and Figure 5As shown, a hydraulic cylinder 17 is arranged above the punching table 16, and a hydraulic rod 18 is movably connected inside the hydraulic cylinder 17, and a punching plate 19 is fixedly installed at one end of the hydraulic rod 18. The hydraulic cylinder 17 and the hydraulic rod 18 have sufficient power to drive the punching head 23 to descend to complete the cold extrusion work on the metal blank. A punching sleeve 20 is fixedly installed at the bottom of the punching plate 19, and a docking joint 21 is arranged on one side of the punching sleeve 20. A threaded rod 22 passes through the outside of the punching sleeve 20, and a punching head 23 is fixedly installed at one end of the threaded rod 22. According to the current different metal blanks and the different selected cold extrusion molds 9, the matching punching head 23 can be replaced on the punching sleeve 20 through the threaded rod 22, so as to meet the cold extrusion work of different metal blanks.

[0034] The practical working principle of the present invention is as follows: first, the external power supply is turned on, and the side protection plates 3 are installed on both sides of the cold extrusion I-beam 1 through the fixing bolts 2. The side protection plates 3 can provide a certain degree of protection for the cold extrusion stamping device on both sides of the cold extrusion I-beam 1 during operation. Then, according to the current metal blank and the selected cold extrusion die 9, the matching punch head 23 can be replaced on the punch sleeve 20 through the threaded rod 22 to meet the cold extrusion work of different metal blanks. Then, before the cold extrusion work, the fixed slide 4 and the fixed slider 5 are used to drive the table 6 to move, so as to complete the fine adjustment of the position of the cold extrusion die 9, so that the cold extrusion die 9 cooperates with the punch head 23 to avoid the occurrence of stamping dislocation during cold extrusion production. Then, according to the current size of the metal blank and the height of the selected cold extrusion die 9, the fixing knob 11 is twisted to adjust the height of the damping reset rod 12 through the manual support rod 10, so that the damping reset rod 12 is consistent with the height of the cold extrusion die 9. After the preparation work is completed, the metal blank can be placed on the cold extrusion die 9. , then turn on the switch of the hydraulic cylinder 17, let the hydraulic cylinder 17 and the hydraulic rod 18 telescope and drive the punch head 23 to descend to start cold extrusion of the metal blank on the cold extrusion die 9, then when the punch head 23 descends and punches, the four groups of damping reset rods 12 alleviate the downward trend of the punch head 23, so that the punch head 23 can descend at a uniform speed to perform cold extrusion on the metal blank, and then when the punch head 23 punches too much, the manual support rod 10 can resist the punching plate 19 to reduce the loss of the cold extrusion die 9 caused by the punch head 23, which not only reduces the loss of the mold, but also provides guarantee for the cold extrusion of the punch head 23, wait for the punch head 23 to complete the cold extrusion of the metal blank, take out the extruded workpiece, re-place the metal blank on the cold extrusion die 9, and continue the production of the next cold extrusion workpiece, finally, after completing the installation and use of all the cold extrusion punching devices according to the above operations, turn off the switch of the hydraulic cylinder 17, and cut off the external power supply if it is not used for a long time, so that the use process of the cold extrusion punching device is completed.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cold extrusion punching device, characterized in that: include A cold extrusion I-shaped seat (1) for placing the die and the metal blank; A fixed slide groove (4) is arranged above the cold extrusion I-shaped seat (1) and is used to drive the cold extrusion die (9) to adjust its position, and a fixed slider (5) is movably connected inside the fixed slide groove (4), a table plate (6) is fixedly mounted on one end of the fixed slider (5), a positioning bolt (7) is arranged above the table plate (6), a fastening bolt (8) passes through the surface of the table plate (6), and one end of the fastening bolt (8) is movably connected to the cold extrusion die (9); A manual support rod (10) is arranged above the table (6) and is used to provide a stamping protection capability for the cold extrusion die (9). A fixed knob (11) is passed through the outside of the manual support rod (10). A damping reset rod (12) is fixedly mounted on the top of the manual support rod (10); A support column (13) is arranged above the cold extrusion I-shaped seat (1) and is used to support and install a punching platform (16). An outer column sleeve (14) is arranged outside the support column (13). A connecting screw (15) penetrates the outside of the outer column sleeve (14). A punching platform (16) is arranged below the outer column sleeve (14).

2. A cold extrusion punching device according to claim 1, characterized in that: A fixing bolt (2) penetrates the outside of the cold extruded I-shaped seat (1), and one end of the fixing bolt (2) is movably connected to a side protection plate (3).

3. A cold extrusion punching device according to claim 1, characterized in that: The table plate (6) is slidably connected to the cold extruded I-shaped seat (1), and the internal dimensions of the fixed slide groove (4) match the external dimensions of the fixed slide block (5).

4. A cold extrusion punching device according to claim 1, characterized in that: The cold extrusion die (9) is threadedly connected to the table plate (6), and the manual support rod (10) and the damping reset rod (12) are vertically distributed.

5. A cold extrusion punching device according to claim 1, characterized in that: A hydraulic cylinder (17) is arranged above the punching table (16), a hydraulic rod (18) is movably connected inside the hydraulic cylinder (17), and a punching plate (19) is fixedly mounted on one end of the hydraulic rod (18).

6. A cold extrusion punching device according to claim 5, characterized in that: A punching sleeve (20) is fixedly mounted on the bottom of the punching plate (19), a docking joint (21) is provided on one side of the punching sleeve (20), a threaded rod (22) penetrates the outside of the punching sleeve (20), and a punching head (23) is fixedly mounted on one end of the threaded rod (22).

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