Cold extrusion forming die for metal handicrafts

Abstract

The utility model discloses a cold extrusion forming die for metal handicrafts, which belongs to the technical field of cold extrusion and comprises a processing table, a connecting seat is mounted at the top end of the processing table, a forming die for cold extrusion forming of the metal handicrafts is arranged at the top end of the connecting seat, and a fixing strip is mounted on the side of the top end of the connecting seat. According to the cold extrusion forming die for the metal handicrafts, due to the design of a motor, a lead screw, a connecting block, an elastic block and a limiting rod, the limiting rod is conveniently opened for avoiding by clamping the elastic block and clamping holes in different positions of the connecting block under the action of the motor and the lead screw, and after a forming die and a connecting base are separated and replaced, the forming die is mounted and fixed in the same way; in this way, the mold is convenient to disassemble and replace, so that only one cold press needs to be matched for cold extrusion of metal handicrafts in different shapes, the occupied space is reduced, and meanwhile, the cold extrusion cost is reduced; meanwhile, the whole dismounting and replacing process is time-saving and labor-saving, and dismounting

Description

Technical Field

[0001] The utility model belongs to the technical field of cold extrusion, in particular to a cold extrusion forming die for metal handicrafts. Background Art

[0002] Cold extrusion is a processing method that places a metal blank in a cold extrusion die cavity, applies pressure to the blank through a punch fixed on a press at room temperature, and causes the metal blank to undergo plastic deformation to obtain a part. At present, my country is able to cold extrude metals such as lead, tin, aluminum, copper and its alloys, low-carbon steel, medium-carbon steel and stainless steel. In real life, when using cold extrusion forming dies to cold extrude metal crafts, since most cold extrusion forming dies are fixed and inconvenient to disassemble and replace, when cold extruding metal crafts of different shapes, multiple cold presses need to be used, which not only takes up a lot of space, but also increases the cost of cold extrusion.

[0003] A Chinese patent document (application publication number CN213701251U) discloses a cold extrusion forming die for metal handicrafts, which includes a body, a processing groove is provided in the body, a placement plate is provided in the processing groove, the placement plate is slidably installed in the processing groove through a buffer mechanism, the buffer mechanism includes two moving rods, one end of each of the two moving rods is fixedly installed with a mounting plate, and the center points of the two moving rods are cross-hinged through a mounting block.

[0004] It can be seen that the patent document cited above also has the same problem. Although it can reduce the damage to the mold caused by the impact force when extruding metal blanks and increase the service life of the mold, the mold on the machine body is fixed and it is not convenient to remove and replace. When cold-extruding metal crafts of different shapes, multiple cold presses need to be used, which not only takes up a lot of space, but also increases the cost of cold extrusion. Utility Model Content

[0005] The utility model aims to provide a cold extrusion forming die for metal handicrafts to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal handicraft cold extrusion forming die, comprising a processing table, a connecting seat is installed at the top of the processing table, a forming die for cold extrusion forming of metal handicrafts is provided at the top of the connecting seat, a fixing bar is installed on the side of the top of the connecting seat, a motor is installed on one side of the fixing bar, a screw is installed on the output end of the motor, a connecting block is installed on the outer wall of the screw, an elastic block is installed on the top of the connecting block, a limiting block is installed on the bottom end of the elastic block, a limiting rod is installed on one side of the limiting block, and one side of the limiting rod is in contact with one side of the forming die.

[0007] As a preferred embodiment, hydraulic cylinders are installed on the four sides of the top of the processing table, and the telescopic ends of the four hydraulic cylinders are commonly provided with a top plate, and another connecting seat is installed at the bottom end of the top plate, and the bottom end of the other connecting seat is provided with a punch for cold extrusion pressure of metal crafts.

[0008] As a preferred embodiment, one end of the screw rod is equipped with a rod seat, and the bottom end of the rod seat is fixedly connected to the top end of the connecting seat.

[0009] As a preferred embodiment, a connecting slider is installed at the bottom end of the forming mold, and the outer wall of the connecting slider is slidably connected to the top end of the connecting seat.

[0010] As a preferred embodiment, a limiting groove is provided on one side of the connection block, and the inner side of the limiting groove is slidably connected to the outer wall of the limiting block.

[0011] As a preferred embodiment, a sliding rod is mounted on one side of the limiting rod, and one end of the sliding rod is fixedly connected to the other side of the fixing bar.

[0012] As a preferred embodiment, the length of the sliding rod is shorter than that of the screw rod.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The cold extrusion forming die for metal handicrafts benefits from the design of the motor, the lead screw, the connecting block, the elastic block and the limit rod. By engaging the elastic block with the clamping holes at different positions on the connecting block, and cooperating with the action of the motor and the lead screw, the limit rod is conveniently opened to make way, and the forming die is separated from the connecting seat and replaced, and the forming die is similarly installed and fixed. In this way, it is convenient to disassemble and replace the die, so that when cold-extruding metal handicrafts of different shapes, only one cold press machine can be used, which not only reduces the occupied space, but also reduces the cold extrusion cost; at the same time, the entire disassembly and replacement process is time-saving and labor-saving, and the disassembly and replacement are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fixing assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure of the connection seat of the utility model;

[0019] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0020] Description of reference numerals:

[0021] In the figure: 1, processing table; 2, connecting seat; 3, sliding rod; 4, forming mold; 5, fixing bar; 6, motor; 7, screw rod; 8, connecting block; 801, limiting slide groove; 9, elastic block; 10, limiting block; 11, limiting rod; 12, hydraulic rod; 13, top plate; 14, punch; 15, connecting slider; 16, rod seat. DETAILED DESCRIPTION

[0022] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0023] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the utility model, and are explained here together.

[0024] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0025] This embodiment provides Figures 1 to 4 A metal handicraft cold extrusion forming die shown in the figure includes a processing table 1, a connecting seat 2 is installed on the top of the processing table 1, the length and width of the connecting seat 2 are smaller than the size of the processing table 1, a forming die 4 for cold extrusion forming of metal handicrafts is provided on the top of the connecting seat 2, the forming die 4 is slidably connected to the connecting seat 2, a fixing bar 5 is installed on the side of the top of the connecting seat 2, a motor 6 is installed on one side of the fixing bar 5, and the motor 6 is a servo motor.

[0026] The output end of the motor 6 provided in this embodiment is provided with a screw rod 7, the outer wall of the screw rod 7 is provided with a connecting block 8, the outer wall of the screw rod 7 passes through the connecting block 8, and is connected with the internal thread of the connecting block 8, and the connecting block 8 does not contact the connecting seat 2 when rotating, and the top of the connecting block 8 is provided with an elastic block 9, and the top of the connecting block 8 is provided with two card holes, and the elastic block 9 is connected with the connecting block 8 through the card holes, and the bottom end of the elastic block 9 is provided with a limit block 10, and the limit block 10 is L-shaped or T-shaped, which is not limited here, as long as it does not break away from the connection Block 8 is sufficient, a limiting rod 11 is installed on one side of the limiting block 10, one side of the limiting rod 11 contacts with one side of the forming die 4, and is engaged with different card holes on the elastic block 9 and the connecting block 8, and under the action of the motor 6 and the screw 7, it is convenient to open the limiting rod 11 to make way, separate and replace the forming die 4 from the connecting seat 2, and then install and fix it, which is convenient for disassembling and replacing the mold, so that when cold-extruding metal crafts of different shapes, only one cold press can be used, which not only reduces the occupied space, but also reduces the cost of cold extrusion.

[0027] In this embodiment, hydraulic cylinders 12 are installed on the four sides of the top of the processing table 1, and the telescopic ends of the four hydraulic cylinders 12 are commonly provided with a top plate 13. Another connecting seat 2 is installed at the bottom end of the top plate 13. The bottom end of the other connecting seat 2 is provided with a punch 14 for cold extrusion pressure of metal crafts. The connection method between the punch 14 and the other connecting seat 2 is the same as the connection method between the forming mold 4 and the connecting seat 2.

[0028] The motor 6 and the hydraulic cylinder 12 are both conventional instruments, and their working principles, sizes and models are irrelevant to the functions of the present application, so they will not be described in detail. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0029] In this embodiment, one end of the screw rod 7 is equipped with a rod seat 16, the screw rod 7 is connected to the rod seat 16 bearing, the bottom end of the rod seat 16 is fixedly connected to the top of the connecting seat 2, and a limiting groove 801 is provided on one side of the connecting block 8. The inner side of the limiting groove 801 is slidably connected to the outer wall of the limiting block 10. When the limiting block 10 slides to the other end of the limiting groove 801, the elastic block 9 is engaged with another clamping hole.

[0030] The present embodiment provides that a connecting slider 15 is installed at the bottom end of the forming mold 4, and the connecting slider 15 is T-shaped. The outer wall of the connecting slider 15 is slidably connected to the top of the connecting seat 2, and the top of the connecting seat 2 is provided with a connecting groove adapted to the connecting slider 15.

[0031] The present embodiment provides that one side of the limit rod 11 is equipped with a sliding rod 3, the limit rod 11 is slidably connected to the sliding rod 13, one end of the sliding rod 3 is fixedly connected to the other side of the fixing bar 5, the length of the sliding rod 3 is shorter than the length of the screw rod 7, when the connecting block 8 is in contact with the rod seat 16, one end of the sliding rod 13 is located inside the limit rod 11, and the limit rod 11 is further moved until the elastic block 9 is engaged with another clamping hole, and the sliding rod 3 is not in contact with the limit rod 11 at this time.

[0032] How it works

[0033] When it is necessary to cold extrude metal crafts of different shapes, first turn on the hydraulic cylinder switch, and drive the top plate 13 to move up through the hydraulic cylinder 12, then turn on the motor switch, and the motor 6 works to drive the connecting block 8 to move horizontally to the right through the screw rod 7. After the connecting block 8 contacts the rod seat 16, turn off the motor 6, and then press the elastic block 9 downward, and move the limit rod 11 to the right until the elastic block 9 is engaged with another card hole. At this time, the motor 6 continues to work to drive the connecting block 8 to rotate. After the limit rod 11 rotates to a vertical position, the forming die 4 is separated and replaced from the connecting seat 2, and then the new forming die 4 is installed and fixed in the same way, and the punch 14 is replaced in the same way. In this way, it is convenient to replace the mold, so that when cold-extruding metal crafts of different shapes, only one cold press machine can be used, which not only reduces the occupied space, but also reduces the cost of cold extrusion.

[0034] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal craft cold extrusion forming die, comprising a processing table (1), a connecting seat (2) being installed at the top of the processing table (1), a forming die (4) for cold extrusion forming of the metal craft being provided at the top of the connecting seat (2), characterized in that: A fixing bar (5) is installed on the side of the top of the connecting seat (2), a motor (6) is installed on one side of the fixing bar (5), a screw rod (7) is installed on the output end of the motor (6), a connecting block (8) is installed on the outer wall of the screw rod (7), an elastic block (9) is installed on the top of the connecting block (8), a limiting block (10) is installed on the bottom end of the elastic block (9), a limiting rod (11) is installed on one side of the limiting block (10), and one side of the limiting rod (11) contacts one side of the forming mold (4).

2. A metal craft cold extrusion forming die according to claim 1, characterized in that: Hydraulic cylinders (12) are installed on the four sides of the top of the processing table (1), and the telescopic ends of the four hydraulic cylinders (12) are commonly provided with a top plate (13). Another connecting seat (2) is installed at the bottom end of the top plate (13), and a punch (14) for cold extrusion and pressure application of metal crafts is provided at the bottom end of another connecting seat (2).

3. The cold extrusion forming die for metal crafts according to claim 1, characterized in that: One end of the screw rod (7) is equipped with a rod seat (16), and the bottom end of the rod seat (16) is fixedly connected to the top end of the connecting seat (2).

4. The cold extrusion forming die for metal crafts according to claim 1, characterized in that: A connecting slider (15) is installed at the bottom end of the forming die (4), and the outer wall of the connecting slider (15) is slidably connected to the top end of the connecting seat (2).

5. The cold extrusion forming die for metal crafts according to claim 1, characterized in that: A limiting groove (801) is provided on one side of the connection block (8), and the inner side of the limiting groove (801) is slidably connected to the outer wall of the limiting block (10).

6. The cold extrusion forming die for metal crafts according to claim 1, characterized in that: A sliding rod (3) is mounted on one side of the limiting rod (11), and one end of the sliding rod (3) is fixedly connected to the other side of the fixing bar (5).

7. A metal craft cold extrusion forming die according to claim 6, characterized in that: The length of the sliding rod (3) is shorter than the length of the screw rod (7).

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