Cold heading die for iron core forming

Abstract

The utility model discloses a cold heading die for iron core forming, which belongs to the technical field of cold heading dies, and comprises a die forming assembly arranged inside, the die forming assembly comprises a pressed die, a die dismounting assembly is arranged on the side wall of the pressed die, and the die dismounting assembly comprises a die dismounting box connected to the side wall of the pressed die. A micro air cylinder is arranged in the mold removal box, a stamping mold is matched with a pressed mold, an iron core is rapidly formed, the formed iron core can be rapidly disassembled through the mold removal assembly, a micro motor is started to drive a balance rod to generate pendulum motion, the iron core is clamped by a clamping jaw to be disassembled, and after the micro air cylinder shrinks in place, the iron core is rapidly formed. And the iron core slides away from the interior of the clamping jaw through the weight of the iron core and falls into the collecting box to complete rapid mold removal, the assembly can improve the iron core machining and forming efficiency, and safety accidents in the manual clamping process are avoided through an automatic mold removal mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to cold heading die technical field, specifically a kind of cold heading die for core forming. BACKGROUND

[0002] Cold heading die is the die used on cold heading machine, mainly for cutting blank, preforming and forming into cold-formed part, cold heading die plays a vital role in metal processing, through the action of die, metal material produces plastic flow under strong pressure, so that the required shape, size and mechanical properties of parts or blank, cold heading process is a kind of little cutting metal pressure processing method, with the characteristics of high efficiency, high quality and low consumption.

[0003] According to the search, the Chinese utility model patent discloses a kind of cold heading die for core forming (publication number: CN220387795U), it is roughly described as, including: a punch part, the punch part includes punch hub and punch, the punch is set in punch hub and one end extends to punch hub outside;A die part, the die part includes die hub, inner die and ejector rod, the inner die and ejector rod are all set in die hub, a cavity is set in the inner die, the punch can extrude plate raw material into cavity and realize core forming in cavity, the ejector rod is used to eject the core formed in inner die to the outside of inner die.The utility model adopts cold heading die to form core, can improve the strength of core, reduce machining amount, improve material utilization, improve processing efficiency, reduce post-process machining amount.

[0004] The above technical scheme, although the punch and inner die part can quickly cold heading form core, the core raw material is placed in extrusion cavity, the core is formed by impact, the core in inner die is ejected outside die by ejector rod, but in the operation process, after the core is ejected by ejector rod, the core is still manually taken out by artificial manual tool, this not only has certain danger, but also is not conducive to the rapid processing of core forming.

[0005] Therefore, the utility model provides a kind of cold heading die for core forming to solve the above problems. UTILITY MODEL CONTENT

[0006] The utility model provides a kind of cold heading die for core forming, aims at solving the problems proposed in background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of cold heading die for core forming, including die assembly, the die assembly includes pressure die, the side wall of the pressure die is provided with demoulding assembly;

[0008] The demolding assembly includes a demolding box connected to the side wall of the pressure mold, a micro air cylinder is arranged in the demolding box, a connecting plate is sleeved on the output end of the micro air cylinder, a support is connected to the side wall of the pressure mold, a rotating shaft is rotatably connected to the inner wall of the support, a balance bar for rapid demolding is rotatably connected to the outer wall of the rotating shaft, one end of the balance bar is connected to the connecting plate, a fixed plate is connected to the end of the balance bar away from the connecting plate, support frames are symmetrically connected to the end of the fixed plate, a rotating shaft is connected to the inner wall of the support frame, a clamping jaw is rotatably connected to the outer wall of the rotating shaft, a strong spring for clamping jaw clamping reset is connected to the inner wall of the clamping jaw, and a pneumatic rod for abutting against an iron core is connected to the side wall of the fixed plate.

[0009] Further, in the cold upsetting die for iron core forming, the inner wall of the pressure mold is detachably connected with a die head, the inner bottom end of the pressure mold is connected with a buffer washer, the upper top end of the buffer washer is connected with a shock absorbing compression spring, the upper top end of the shock absorbing compression spring is connected with a rubber pad, and the upper top end of the rubber pad is connected with a buffer ball for reducing impact force.

[0010] Further, in the cold upsetting die for iron core forming, the lower bottom end of the pressure mold is connected with a counter-pushing cavity for pushing out the iron core, the inner bottom end of the counter-pushing cavity is connected with a first spring for counter-pushing, and the upper top end of the first spring is connected with a counter-pushing rod.

[0011] Further, in the cold upsetting die for iron core forming, the upper end of the pressure mold is provided with a stamping die, and the stamping die is internally provided with a stamping hammer for iron core forming.

[0012] Further, in the cold upsetting die for iron core forming, the output end of the pneumatic rod is sleeved with a rubber plate for avoiding scratching the surface of the iron core, and the inner wall of the clamping jaw is provided with a friction strip for improving clamping friction.

[0013] Further, in the cold upsetting die for iron core forming, the end of the micro air cylinder is sleeved with a pneumatic hose, the end of the pneumatic hose is connected with a gas seat, the output end of the gas seat is sleeved with a gas pipe, and the end of the gas pipe is sleeved with the input end of the pneumatic rod.

[0014] Compared with the prior art, the cold upsetting die for iron core forming has the following beneficial effects:

[0015] The utility model discloses simple structure, convenient to use can be through the stamping die cooperation pressure die, the iron core is formed fast, utilizes the demoulding subassembly, can split the iron core after forming fast, through the start micro motor drives the balance pole and produces the pendulum motion, utilizes the jaw and takes the iron core and separates, and micro air cylinder contracts in place, through the weight of iron core from the jaw interior slide, falls into the collection box and completes the quick demoulding work, and this subassembly can improve the efficiency that iron core fixed forming, and through the automatic demolding mode, avoid the safety accident in the manual clamping process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a kind of whole structure schematic diagram for the cold heading die of iron core forming;

[0017] Figure 2 It is a kind of demoulding subassembly structure schematic diagram for the cold heading die of iron core forming;

[0018] Figure 3 It is a kind of support frame schematic diagram for the cold heading die of iron core forming;

[0019] Figure 4 It is a kind of jaw structure schematic diagram for the cold heading die of iron core forming;

[0020] Figure 5 It is a kind of buffer cavity internal structure schematic diagram for the cold heading die of iron core forming.

[0021] In the drawing:

[0022] 1, moulding subassembly;101, pressure die;102, die head;103, buffer washer;104, buffer compression spring;105, rubber pad;106, buffer ball;107, counter -thrust cavity;108, first spring;109, counter -thrust rod;110, stamping die;111, stamping hammer;112, pneumatic hose;113, gas seat;114, gas pipe;2, demoulding subassembly;201, demoulding box;202, micro air cylinder;203, connecting plate;204, support;205, rotating shaft;206, balance pole;207, fixed plate;208, support frame;209, rotating shaft;210, jaw;211, strong spring;212, pneumatic rod;213, rubber plate;214, friction strip. DETAILED DESCRIPTION

[0023] The technical scheme in the utility model embodiment will be described clearly and completely in connection with the drawings in the utility model embodiment. Apparently, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model.

[0024] The utility model provides a cold heading die for iron core forming, such as Figure 1 、 Figure 2 、 Figure 3 And Figure 4 As shown in a kind of cold heading die for iron core forming, including mould assembly 1, mould assembly 1 includes pressure die 101, the side wall of pressure die 101 is provided with dismantling mould component 2;

[0025] Dismantling mould component 2 includes dismantling mould box 201 connected in the side wall of pressure die 101, the inside of dismantling mould box 201 is provided with micro air cylinder 202, the output of micro air cylinder 202 is sleeved with connecting plate 203, the side wall of pressure die 101 is connected with support 204, the inner wall of support 204 is rotatably connected with rotating shaft 205, the outer wall of rotating shaft 205 is rotatably connected with balance bar 206 for quick dismantling mould, and one end of balance bar 206 is connected with connecting plate 203, the end of balance bar 206 away from connecting plate 203 is connected with fixed plate 207, and the end of fixed plate 207 is symmetrically connected with support frame 208, the inner wall of support frame 208 is connected with rotating shaft 209, the outer wall of rotating shaft 209 is rotatably connected with clamping jaw 210, the inner wall of clamping jaw 210 is connected with strong spring 211 for the clamping jaw 210 clamping reset, the side wall of fixed plate 207 is connected with pneumatic rod 212 for abutting iron core.

[0026] The output of pneumatic rod 212 is sleeved with rubber plate 213 for avoiding iron core surface scratch, and the inner wall of clamping jaw 210 is provided with friction strip 214 for improving clamping friction.

[0027] The end of micro air cylinder 202 is sleeved with pneumatic hose 112, the end of pneumatic hose 112 is connected with gas seat 113, the output of gas seat 113 is sleeved with air pipe 114, and the end of air pipe 114 is sleeved with the input of pneumatic rod 212.

[0028] The pressure mold 101 of the molding component 1 can facilitate the iron core to be formed by the mold, and the demolding component 2 can be used to quickly remove the formed iron core from the mold, so that the next iron core part can be pressed. The automatic demolding method can avoid safety accidents that occur during manual demolding, and can improve production efficiency. When the iron core is pressed, the micro cylinder 202 is started to drive the connecting plate 203 at the output end to move horizontally, thereby driving the balance bar 206 to perform a pendulum motion on the rotating shaft 205. Since the inner wall of the support frame 208 on the fixed plate 207 at the other end is connected to the clamping claw 210 through the rotating shaft 209, and the rubber plate 213 and the friction strip 214 are set inside the clamping claw 210, the friction force between the clamping claw 210 and the iron core can be increased, thereby driving the iron core to quickly separate from the mold, so the pendulum motion of the balance bar 206 will transfer the iron core to the other side. On the one hand, since the iron core itself has a certain gravity, and after the separation is completed, the micro cylinder 202 is connected to the pneumatic rod 212 through the pneumatic hose 112 and the air seat 113, the pneumatic rod 212 retracts, so the iron core will be separated from the inside of the clamp 210 due to gravity and fall into the pre-placed aggregate equipment, thereby completing the demoulding process. When the second iron core is pressed, the micro cylinder 202 will extend to drive the clamp 210 to reset. Since the side wall of the clamp 210 is provided with a strong spring 211, the front end of the clamp 210 will quickly open due to the impact force of the reset when impacting the iron core. After gripping the iron core, the iron core is quickly clamped by the elastic potential energy of the strong spring 211, and the pneumatic rod 212 drives the rubber plate 213 to push the iron core to complete the tight clamping, and then repeat the previous demoulding step. The device has a simple structure and is easy to install and disassemble. It can improve production efficiency while avoiding safety hazards.

[0029] For example, in order to complete the stamping work, as Figure 1 、 Figure 2 and Figure 5 As shown, the inner wall of the pressure mold 101 is detachably connected to the die head 102, the inner bottom end of the pressure mold 101 is connected to the buffer washer 103, the upper top of the buffer washer 103 is connected to the shock-absorbing compression spring 104, the upper top of the shock-absorbing compression spring 104 is connected to the rubber pad 105, and the upper top of the rubber pad 105 is connected to the buffer ball 106 for reducing impact force.

[0030] The lower bottom end of the pressure mold 101 is connected to a reverse thrust cavity 107 for pushing out the iron core, the inner bottom end of the reverse thrust cavity 107 is connected to a first spring 108 for reverse thrust, and the upper top end of the first spring 108 is connected to a reverse thrust rod 109.

[0031] A punching die 110 is provided at the upper end of the pressure die 101 , and a punching hammer 111 for forming the iron core is provided inside the punching die 110 .

[0032] In the processing of the iron core stamping forming, the stamping hammer 111 of the stamping die 110 can drive the heavy stamping hammer 111 through high pressure to impact the iron core quickly, so as to be quickly formed in the pressure die 101, and when the forming is completed, the iron core is pushed out of the die by the reverse push rod 109 in the reverse push cavity 107 in the pressure die 101, so that the die stripping assembly 2 can be quickly stripped, and since the first spring 108 is arranged below the reverse push rod 109, the impact on the pressure die 101 during stamping can be reduced to a certain extent, and the reverse push rod 109 can be reset through the material performance, and the impact force of the impact on the die can be further reduced by the buffer ring 103, the buffer spring 104 and the rubber pad 105 in the pressure die 101, so that the service life of the pressure die 101 is prolonged.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A cold heading die for forming an iron core, comprising a die assembly (1), characterized in that: The mold forming assembly (1) comprises a pressure mold (101), and a mold removal assembly (2) is provided on the side wall of the pressure mold (101); The demoulding assembly (2) comprises a demoulding box (201) connected to the side wall of the pressure mold (101), a micro cylinder (202) is provided inside the demoulding box (201), an output end of the micro cylinder (202) is sleeved with a connecting plate (203), the side wall of the pressure mold (101) is connected to a bracket (204), the inner wall of the bracket (204) is rotatably connected to a rotating shaft (205), the outer wall of the rotating shaft (205) is rotatably connected to a balancing rod (206) for rapid demoulding, and one end of the balancing rod (206) is connected to a connecting rod. The balancing rod (206) is connected to a plate (203), one end of the balancing rod (206) away from the connecting plate (203) is connected to a fixed plate (207), the end of the fixed plate (207) is symmetrically connected to a support frame (208), the inner wall of the support frame (208) is connected to a rotating shaft (209), the outer wall of the rotating shaft (209) is rotatably connected to a clamping claw (210), the inner wall of the clamping claw (210) is connected to a strong spring (211) for clamping and resetting the clamping claw (210), and the side wall of the fixed plate (207) is connected to a pneumatic rod (212) for abutting the iron core.

2. The cold heading die for forming an iron core according to claim 1, characterized in that: The inner wall of the pressure mold (101) is detachably connected to a die head (102), the inner bottom end of the pressure mold (101) is connected to a buffer washer (103), the upper top of the buffer washer (103) is connected to a shock-absorbing compression spring (104), the upper top of the shock-absorbing compression spring (104) is connected to a rubber pad (105), and the upper top of the rubber pad (105) is connected to a buffer ball (106) for reducing impact force.

3. The cold heading die for forming an iron core according to claim 2, characterized in that: The lower bottom end of the pressure mold (101) is connected to a reverse thrust cavity (107) for pushing out the iron core, the inner bottom end of the reverse thrust cavity (107) is connected to a first spring (108) for reverse thrust, and the upper top end of the first spring (108) is connected to a reverse thrust rod (109).

4. The cold heading die for forming an iron core according to claim 1, characterized in that: A punching die (110) is provided at the upper end of the pressure-bearing die (101), and a punching hammer (111) for forming the iron core is provided inside the punching die (110).

5. The cold heading die for forming an iron core according to claim 1, characterized in that: The output end of the pneumatic rod (212) is sleeved with a rubber plate (213) for preventing the surface of the iron core from being scratched, and the inner wall of the clamping jaw (210) is provided with a friction strip (214) for increasing the clamping friction force.

6. The cold heading die for forming an iron core according to claim 1, characterized in that: The end of the micro cylinder (202) is sleeved with a pneumatic hose (112), the end of the pneumatic hose (112) is connected to an air seat (113), the output end of the air seat (113) is sleeved with an air pipe (114), and the end of the air pipe (114) is sleeved with the input end of the pneumatic rod (212).

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