Cold extrusion die for preparing valve collet

Abstract

The utility model discloses a cold extrusion die for preparing a valve collet, and belongs to the technical field of machining. Comprising a bottom plate, a supporting frame is arranged at the top of the bottom plate, and an air pump, a refrigeration box and a hydraulic press are sequentially arranged at the top of the supporting frame. When the upper die moves upwards after extrusion is completed, the first spring pushes the limiting seat to move downwards, the limiting seat is fixedly connected with the air outlet pipe so as to drive the air outlet pipe to move downwards, the side wall of the air outlet pipe is in threaded connection with the spray head so as to drive the spray head to move downwards, the output end of the spray head is aligned with a finished product subjected to cold extrusion, and then the air pump and the electromagnetic valve are started. The air pump sprays out cold air in the refrigeration box through the spray head, and the mold can be directly cooled; and when the positioning rod moves downwards, the second spring pushes the buffer block, so that the positioning rod moving downwards is buffered, and hard extrusion between the positioning rod and the lower die when the positioning rod moves downwards is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, and more specifically to a cold extrusion die for preparing a valve lock clip. Background Art

[0002] The valve lock clamp is a component used in automobile engines. Its main function is to fix the valve spring to prevent the valve from losing control due to inertia under high speed or high compression ratio conditions, thereby ensuring the normal operation of the valve. The valve lock clamp is usually made of high-strength metal materials, which are resistant to high temperature and wear, and can withstand the huge pressure when the engine is running at high speed. As an important part of the engine, the valve lock clamp not only ensures the normal operation and performance of the engine, but also plays a vital role in the reliability and safety of the engine.

[0003] The cold extrusion die for the preparation of valve lock clips is a special tool used to press metal blanks into the mold of valve lock clip products through the cold extrusion process. This mold is usually made of high-strength alloy steel or other wear-resistant materials, with a special design structure and high precision requirements. During the preparation process, the mold applies high pressure to make the metal blank flow in the mold cavity and form the desired shape, and the finished product is taken out after cooling and solidification. The cold extrusion die for the preparation of valve lock clips has the advantages of high efficiency, high precision and stability, and can meet the strict requirements of valve lock clip products in the fields of automobile engines and so on.

[0004] When cooling the finished product of the existing cold extrusion die for preparing valve lock clips, most of the time the staff manually put the finished product into cooling water for water cooling. The operation process is relatively cumbersome and the cooling effect is poor, which affects the use effect of the device; when positioning the upper and lower dies, the positioning rod may be hard squeezed with the lower die during the downward movement, resulting in a shortened service life of the lower die and the positioning rod. For this reason, we propose a cold extrusion die for preparing valve lock clips. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to provide a cold extrusion die for preparing valve lock clips, so as to solve the problem proposed in the above background technology that most of the finished products are manually placed in cooling water for water cooling by workers, and the operation process is relatively cumbersome, and the cooling effect is poor, which affects the use effect of the device; when positioning the upper and lower dies, the positioning rod may be hard squeezed with the lower die during the downward movement.

[0007] 2. Technical solution

[0008] A cold extrusion die for preparing a valve lock clip, comprising a bottom plate, a support frame is arranged on the top of the bottom plate, an air pump, a refrigeration box and a hydraulic pressure device are arranged on the top of the support frame in sequence, a support plate is arranged at the output end of the hydraulic pressure device, an upper die is arranged at the bottom of the support plate, a plurality of heat conducting plates are arranged inside the upper die, an air outlet pipe is symmetrically arranged on the side wall of the upper die, a limit plate cooperating with the air outlet pipe is symmetrically arranged on the side wall of the upper die, and a limit seat and a nozzle are arranged on the circumferential outer wall of the air outlet pipe;

[0009] The lower mold is provided on the top of the base plate and cooperates with the upper mold. A plurality of positioning rods cooperating with the lower mold are provided at the bottom of the support plate. A buffer block cooperating with the positioning rod is provided inside the lower mold. The hydraulic press and the air pump are both provided with switches for electrical connection.

[0010] Preferably, a plurality of refrigeration fins are fixedly disposed inside the refrigeration box, and the refrigeration fins are provided with electrically connected switches.

[0011] Preferably, a plurality of vents are provided on the side wall of the heat conducting plate, and a circumferential outer wall of the air outlet pipe is slidably connected to a limiting sleeve.

[0012] Preferably, a spring 1 cooperating with the limit seat is sleeved on the circumferential outer wall of the air outlet pipe, and a fixing sleeve is fixedly disposed on the circumferential outer wall of the air outlet pipe.

[0013] Preferably, a solenoid valve cooperating with the air outlet pipe is fixedly disposed on the circumferential outer wall of the fixing sleeve, and the solenoid valve is provided with an electrically connected switch.

[0014] Preferably, a slot is provided at the bottom of the buffer block, a second spring is provided at the bottom of the slot, and a sliding slot cooperating with the buffer block is provided inside the lower mold.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The utility model discloses that after the upper die of the utility model is extruded, when it moves upward, the spring pushes the limit seat to move downward, and the limit seat is fixedly connected with the air outlet pipe, thereby driving the air outlet pipe to move downward, and the side wall of the air outlet pipe is threadedly connected with a nozzle, thereby driving the nozzle to move downward, so that the output end of the nozzle is aimed at the finished product after cold extrusion, and then the air pump and the solenoid valve are turned on, and the air pump sprays the cold air inside the refrigeration box through the nozzle, which can directly cool the finished product. At the same time, a plurality of heat conduction plates with vents are fixed inside the upper die. Before the cold air passes through the air outlet pipe, it first passes through the heat conduction plate inside the upper die. The heat conduction plate can increase the contact area with the air, so that it can have a better cooling effect on the upper die, and can have a better cooling effect on the finished product in combination with the nozzle; when the positioning rod moves downward, the spring pushes the buffer block, thereby buffering the positioning rod moving downward, avoiding hard extrusion of the positioning rod with the lower die when it moves downward, thereby increasing the service life of the lower die and the positioning rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the upper mold structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the air outlet pipe structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the lower mold structure of the utility model;

[0022] Explanation of the numbers in the figure: 100, bottom plate; 110, support frame; 120, air pump; 130, refrigeration box; 140, hydraulic press; 141, support plate; 150, upper mold; 151, heat conduction plate; 152, vent; 160, limit plate; 161, air outlet pipe; 170, limit sleeve; 171, limit seat; 180, fixing sleeve; 181, nozzle; 190, solenoid valve; 200, lower mold; 210, positioning rod; 220, buffer block; 221, slot; 230, slide slot. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] See also Figure 1-4 ,The utility model provides a technical solution:

[0027] A cold extrusion die for preparing a valve lock clip comprises a bottom plate 100, a support frame 110 is fixedly arranged on the top of the bottom plate 100, an air pump 120, a refrigeration box 130 and a hydraulic device 140 are fixedly arranged on the top of the support frame 110 in sequence, the refrigeration box 130 is used to provide cold air, the air pump 120 is used to transmit cold air in and out, a support plate 141 is fixedly arranged at the output end of the hydraulic device 140, and is used to support an upper die 150, and an upper die 150 is fixedly arranged at the bottom of the support plate 141, and cooperates with a lower die 2 00 to extrude the workpiece, a plurality of heat conducting plates 151 are fixedly arranged inside the upper die 150 to increase the contact area between the upper die 150 and the cold air, an air outlet pipe 161 is symmetrically threadedly connected to the side wall of the upper die 150 to cooperate with the cold air to exhaust, a limiting plate 160 is symmetrically fixedly arranged on the side wall of the upper die 150 to cooperate with the air outlet pipe 161 to limit the position of the air outlet pipe 161 and is slidably connected to the air outlet pipe 161, and a limiting seat 171 is fixedly arranged on the circumferential outer wall of the air outlet pipe 161 When the upper die 150 moves upward after extrusion, the spring pushes the limit seat 171 to move downward, and the limit seat 171 is fixedly connected to the air outlet pipe 161, thereby driving the air outlet pipe 161 to move downward, and the limit sleeve 170 limits the limit seat 171. The side wall of the air outlet pipe 161 is threadedly connected with the nozzle 181, thereby driving the nozzle 181 to move downward, so that the output end of the nozzle 181 is aligned with the finished product after cold extrusion, and then the air pump 120 and the solenoid valve 190 are turned on. The air pump 120 sprays the cold air in the refrigeration box 130 through the nozzle 181, which can directly cool the finished product. At the same time, a plurality of heat-conducting plates 151 with vents 152 are fixedly provided inside the upper mold 150. Before the cold air passes through the air outlet pipe 161, it first passes through the heat-conducting plates 151 inside the upper mold 150. The heat-conducting plates 151 can increase the contact area with the air, so that the cooling effect on the upper mold 150 can be better. In combination with the nozzle 181, the cooling effect on the finished product can be better.

[0028] A lower mold 200 that cooperates with the upper mold 150 is fixedly provided on the top of the base plate 100, and a plurality of positioning rods 210 that cooperate with the lower mold 200 are fixedly provided at the bottom of the support plate 141, which are used to position the upper mold 150 and the lower mold 200. A buffer block 220 that cooperates with the positioning rod 210 is slidably connected inside the lower mold 200, which is used to buffer the positioning rod 210. When the positioning rod 210 moves downward, spring 2 pushes the buffer block 220, thereby buffering the positioning rod 210 that moves downward, avoiding hard extrusion between the positioning rod 210 and the lower mold 200 when moving downward, thereby increasing the service life of the lower mold 200 and the positioning rod 210. The hydraulic press 140 and the air pump 130 are both provided with electrically connected switches.

[0029] Specifically, a plurality of refrigeration fins are fixed inside the refrigeration box 130;

[0030] In some embodiments, the cooling sheet is a semiconductor cooling sheet, and the working principle is based on the thermoelectric effect, that is, through the PN junction of the semiconductor material, heat and cold are generated when current passes through. When current passes through, the P region generates heat, while the N region generates cold, which can achieve an efficient cooling effect. Aluminum alloy heat conduction blocks are provided in the heat generation area of ​​the cooling sheet for heat dissipation;

[0031] The refrigeration plate is used to generate cold air, and the refrigeration plate is provided with an electrically connected switch.

[0032] Furthermore, a plurality of vents 152 are provided on the side wall of the heat conducting plate 151 for circulation of cold air, and a limiting sleeve 170 is slidably connected to the outer wall of the circumference of the air outlet pipe 161 for limiting the position of the air outlet pipe 161 .

[0033] Furthermore, a spring 1 that cooperates with the limiting seat 171 is provided on the circumferential outer wall of the air outlet pipe 161 to push the limiting seat 171 to drive the air outlet pipe 161 to move downward. A fixing sleeve 180 is fixed on the circumferential outer wall of the air outlet pipe 161 to cooperate with the limiting sleeve 170 to limit the air outlet pipe 161.

[0034] It is worth noting that a solenoid valve 190 cooperating with the air outlet pipe 161 is fixedly disposed on the circumferential outer wall of the fixing sleeve 180 for controlling the exhaust of the nozzle 181 , and the solenoid valve 190 is provided with an electrically connected switch.

[0035] It is worth noting that a slot 221 is provided at the bottom of the buffer block 220 for limiting the spring 2, and a spring 2 is provided at the bottom of the slot 221 for pushing the buffer block 220 for buffering the buffer block 220, and a sliding groove 230 is provided inside the lower mold 200 for cooperating with the buffer block 220 for sliding with the buffer block 220.

[0036] In addition, the circuits, electronic components and modules involved in the utility model are all prior art, and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to the internal structure and method.

[0037] The device or equipment models involved in this article are as follows:

[0038] The switch model is: rocker switch; the brand is zave.

[0039] The model of the air pump 120 is: V61; the brand is Xinweicheng;

[0040] The model of the cooling plate is: 12703; the brand is APOBICO;

[0041] The model of the hydraulic press is HOB40; the brand is FEILIDA;

[0042] Working principle: First, after the upper die 150 is extruded, when it moves upward, the spring pushes the limit seat 171 to move downward, and the limit seat 171 is fixedly connected to the air outlet pipe 161, thereby driving the air outlet pipe 161 to move downward, and the limit sleeve 170 limits the limit seat 171. The side wall of the air outlet pipe 161 is threadedly connected with a nozzle 181, thereby driving the nozzle 181 to move downward, so that the output end of the nozzle 181 is aligned with the finished product after cold extrusion, and then the air pump 120 and the solenoid valve 190 are turned on, and the air pump 120 sprays the cold air inside the refrigeration box 130 through the nozzle 181, which can directly cool the finished product, and at the same time, the upper die 150 0 is provided with a plurality of heat conducting plates 151 with vents 152 inside. Before the cold air passes through the air outlet pipe 161, it first passes through the heat conducting plates 151 inside the upper mold 150. The heat conducting plates 151 can increase the contact area with the air, so that the upper mold 150 can be cooled better. The finished product can be cooled better in combination with the nozzle 181. When the positioning rod 210 moves downward, the spring 2 pushes the buffer block 220, thereby buffering the positioning rod 210 moving downward, avoiding the positioning rod 210 from being hard squeezed with the lower mold 200 when moving downward, thereby increasing the service life of the lower mold 200 and the positioning rod 210.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A cold extrusion die for preparing a valve lock clip, comprising a base plate (100), characterized in that: A support frame (110) is arranged on the top of the bottom plate (100), and an air pump (120), a refrigeration box (130) and a hydraulic press (140) are arranged on the top of the support frame (110) in sequence; a support plate (141) is arranged at the output end of the hydraulic press (140); an upper mold (150) is arranged at the bottom of the support plate (141); a plurality of heat conducting plates (151) are arranged inside the upper mold (150); an air outlet pipe (161) is symmetrically arranged on the side wall of the upper mold (150); a limit plate (160) that cooperates with the air outlet pipe (161) is symmetrically arranged on the side wall of the upper mold (150); and a limit seat (171) and a nozzle (181) are arranged on the circumferential outer wall of the air outlet pipe (161); A lower mold (200), the top of the base plate (100) is provided with a lower mold (200) that cooperates with the upper mold (150), the bottom of the support plate (141) is provided with a plurality of positioning rods (210) that cooperate with the lower mold (200), a buffer block (220) that cooperates with the positioning rods (210) is provided inside the lower mold (200), and the hydraulic press (140) and the air pump (120) are both provided with switches that are electrically connected.

2. The cold extrusion die for preparing a valve lock clip according to claim 1, characterized in that: A plurality of refrigeration fins are fixedly arranged inside the refrigeration box (130), and the refrigeration fins are provided with electrically connected switches.

3. The cold extrusion die for preparing a valve lock clip according to claim 2, characterized in that: The side wall of the heat conducting plate (151) is provided with a plurality of vents (152), and the circumferential outer wall of the air outlet pipe (161) is slidably connected to a limiting sleeve (170).

4. The cold extrusion die for preparing a valve lock clip according to claim 3, characterized in that: A spring 1 that cooperates with the limiting seat (171) is sleeved on the circumferential outer wall of the air outlet pipe (161), and a fixing sleeve (180) is fixedly disposed on the circumferential outer wall of the air outlet pipe (161).

5. The cold extrusion die for preparing a valve lock clip according to claim 4, characterized in that: The outer circumferential wall of the fixing sleeve (180) is fixedly provided with a solenoid valve (190) that cooperates with the air outlet pipe (161), and the solenoid valve (190) is provided with an electrically connected switch.

6. The cold extrusion die for preparing a valve lock clip according to claim 5, characterized in that: The buffer block (220) is provided with a slot (221) at the bottom, a second spring is arranged at the bottom of the slot (221), and a slide slot (230) cooperating with the buffer block (220) is provided inside the lower mold (200).

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