High precision extrusion processing equipment

Abstract

The utility model discloses a high-precision extrusion processing equipment, including: a first hydraulic cylinder, a first hydraulic lever, a sleeve, a core rod, an extrusion outer die, a second hydraulic cylinder, a second hydraulic lever and a temperature control component; the end of the first hydraulic cylinder is formed with an exhaust channel for limiting and fixing the end of a tube-shaped part blank; the extrusion outer die is installed at the end of the second hydraulic cylinder and is formed with an extrusion die hole; the temperature control component includes: a sleeve shell sleeved on the outer periphery of the sleeve; a heating layer for temperature regulation is provided on the inner side of the sleeve; a temperature uniformity layer for balancing the circumferential temperature of the sleeve is provided between the heating layer and the sleeve; an annular temperature sensor for detecting the temperature value of the tube-shaped part blank is provided on the inner wall of the sleeve; the annular temperature sensor is arranged around the outer periphery of the tube-shaped part blank. The high-precision extrusion processing equipment has high processing efficiency and stable processing quality, high versatility in use, and can reduce production and processing costs.

Description

Technical Field

[0001] The utility model relates to high-precision extrusion processing equipment. 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 the metal blank to undergo plastic deformation to produce 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 extrude bearing steel, high-carbon high-aluminum alloy tool steel, high-speed steel, etc. with a certain amount of deformation. With the increasingly serious energy crisis, people will pay more attention to environmental quality, and the increasingly fierce market competition will prompt the production of forgings to develop in the direction of high efficiency, high quality, refinement, energy saving and material saving. Therefore, the output of refined forgings produced by extrusion forming and other process means will be greatly developed in the market competition.

[0003] However, the current cold extrusion process uses a pushing mechanism to drive the outer shaping punch and the inner shaping punch to extrude and shape the outer wall and inner wall of the tube-shaped part blank, and then perform demolding. Such a cold extrusion structure is simple. For pipes composed of different materials, they are all cold extruded at room temperature, and the effects of the molded parts obtained are uneven. In addition, for different lengths of the tube-shaped part blanks, different lengths of punch structures are required, which is costly. Utility Model Content

[0004] The utility model provides a high-precision extrusion processing equipment to solve the above-mentioned technical problems, and specifically adopts the following technical solutions:

[0005] A high-precision extrusion processing equipment comprises: a first hydraulic cylinder, a first hydraulic lever for limiting a tubular part blank, a sleeve for inserting the tubular part blank, a core rod for inserting into the tubular part blank to extrude and shape the inner wall of the tubular part blank, an extrusion outer die for extruding and shaping the outer wall of the tubular part blank, a second hydraulic cylinder, a second hydraulic lever and a temperature control component for temperature control of the tubular part blank in the sleeve; the first hydraulic lever is slidably mounted on the first hydraulic cylinder to be driven by the first hydraulic cylinder to extend and retract; an exhaust channel for exhausting the tubular part blank and the core rod when the tubular part blank and the core rod are inserted is formed at the end of the first hydraulic cylinder; the sleeve is fixed to the first hydraulic cylinder; The second hydraulic lever is slidably installed on the second hydraulic cylinder to be driven to extend and retract by the second hydraulic cylinder; the core rod is fixed to one end of the second hydraulic lever and slides in the second hydraulic cylinder; the extrusion outer die is installed on the end of the second hydraulic cylinder and is formed with an extrusion die hole for inserting the tubular part blank to extrude and shape the outer wall of the tubular part blank; the temperature control component includes: a sleeve shell arranged on the outer periphery of the sleeve; a heating layer for temperature regulation is provided on the inner side of the sleeve; a temperature uniformity layer for equalizing the circumferential temperature of the sleeve is provided between the heating layer and the sleeve; an annular temperature sensor for detecting the temperature value of the tubular part blank is provided on the inner wall of the sleeve; the annular temperature sensor is arranged around the outer periphery of the tubular part blank.

[0006] Furthermore, the heating layer is composed of electric heating wires; and the temperature uniformity layer is composed of a heat-conducting silicone sleeve.

[0007] Furthermore, a cold regulating layer for cooling the tube-shaped part blank is provided in the temperature uniformity layer.

[0008] Furthermore, the cold regulating layer comprises: a plurality of cooling pipes for injecting cooling medium; the plurality of cooling pipes are distributed circumferentially around the sleeve in the temperature uniformity layer.

[0009] Furthermore, the casing is provided with an injection port for injecting cooling liquid or cooling gas and an exhaust port for discharging liquid or gas; the injection port and the exhaust port are both connected to a plurality of cooling pipes.

[0010] Furthermore, the high-precision extrusion processing equipment is also provided with a fixed seat; the first hydraulic cylinder and the second hydraulic cylinder are both fixed to the fixed seat; the fixed seat is also provided with a telescopic lever for clamping on the peripheral side of the core rod to withdraw the tubular parts; the upper end of the telescopic lever is formed with a clamping groove for clamping on the peripheral side of the core rod.

[0011] Furthermore, an inner annular distance sensor for detecting the flatness of the inner wall of the tubular part blank is provided at one end of the mandrel away from the second hydraulic lever.

[0012] Furthermore, an annular guiding slope is formed at one end of the mandrel away from the second hydraulic lever for guiding the mandrel to insert into the tubular part blank; the inner annular distance sensor is embedded in the annular guiding slope and is arranged concentrically with the mandrel.

[0013] Furthermore, an outer annular distance sensor for detecting the flatness of the outer wall of the tubular part blank is installed at the end of the extrusion outer die.

[0014] Further, the outer annular distance sensor is distributed around the orifice of the extrusion die hole and is arranged concentrically with the core rod.

[0015] The utility model is beneficial in that the high-precision extrusion processing equipment provided can set corresponding temperature parameters according to pipes made of different materials by arranging a temperature control component on the outer periphery of the sleeve, so that when cold extrusion is performed on pipes made of different materials, at room temperature, the temperature of the formed pipe itself can be controlled and adjusted by the temperature control component, thereby improving the efficiency and quality of the extrusion forming, thereby ensuring that the extrusion forming quality of pipes made of different materials is balanced and stable, with higher versatility, while ensuring production efficiency and reducing production costs.

[0016] In addition, through the pushing action of the first hydraulic lever and the second hydraulic lever, the core rod cooperates with the extrusion outer die to extrude and shape the tubular parts of different lengths, thereby improving the versatility of equipment processing and further reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the high-precision extrusion processing equipment of the utility model;

[0019] Tube-type parts rough training 1, high-precision extrusion processing equipment 10, a first hydraulic cylinder 11, a first hydraulic lever 12, an exhaust channel 121, a sleeve 13, a core rod 14, an annular guide slope 141, an extrusion outer die 15, an extrusion die hole 151, a second hydraulic cylinder 16, a second hydraulic lever 17, a temperature control component 18, a sleeve 181, a heating layer 182, a temperature uniformity layer 183, an annular temperature sensor 184, a cooling pipe 185, an injection port 186, an exhaust port 187, an inner annular distance sensor 19, an outer annular distance sensor 20, a fixing seat 21, and a telescopic gear rod 22. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0021] like Figure 1 As shown, a high-precision extrusion processing equipment 10 of the present application includes: a first hydraulic cylinder 11, a first hydraulic rod 12, a sleeve 13, a core rod 14, an extrusion outer die 15, a second hydraulic cylinder 16, a second hydraulic rod 17 and a temperature control component 18. The first hydraulic rod 12 is used to limit and push the tubular part blank 1, the sleeve 13 is used to insert the tubular part blank 1, the core rod 14 is used to insert the tubular part blank 1 to extrude and shape the inner wall of the tubular part blank 1, the extrusion outer die 15 is used to extrude and shape the outer wall of the tubular part blank 1, and the temperature control component 18 is used to regulate the temperature of the tubular part blank 1 in the sleeve 13. During installation: the first hydraulic rod 12 is slidably installed on the first hydraulic cylinder 11 so as to be driven to extend and retract by the first hydraulic cylinder 11, and the end of the first hydraulic cylinder 11 is formed with an exhaust channel 121 for exhausting the tube-shaped part blank 1 and the core rod 14 when they are inserted, and the sleeve 13 is fixed to the first hydraulic cylinder 11; the second hydraulic rod 17 is slidably installed on the second hydraulic cylinder 16 so as to be driven to extend and retract by the second hydraulic cylinder 16, and the core rod 14 is fixed to one end of the second hydraulic rod 17 and slides in the second hydraulic cylinder 16, and the extrusion outer die 15 is installed on the end of the second hydraulic cylinder 16, and the extrusion outer die 15 is formed with an extrusion die hole 151 for inserting the tube-shaped part blank 1 to extrude and shape the outer wall of the tube-shaped part blank 1. After the installation is completed, the center lines of the extrusion die hole 151 and the sleeve 13 coincide, the outer diameter of the core rod 14 is equal to the inner diameter of the tube-shaped part blank 1, and the inner diameter of the extrusion die hole 151 is equal to the outer diameter of the tube-shaped part blank 1.

[0022] In this way, during operation, the tubular part blank 1 is first inserted into the sleeve 13, and then the second hydraulic cylinder 16 drives the second hydraulic rod 17 to drive the core rod 14 to insert into the inner hole of the tubular part blank 1. In this process, the core rod 14 can extrude and shape the inner wall of the tubular part blank 1. In this process, the exhaust channel 121 can exhaust the air to ensure the smoothness of the extrusion process. Then, the first hydraulic cylinder 11 drives the first hydraulic rod 12 to push the tubular part blank 1 into the extrusion die hole 151 of the extrusion outer die 15, and the outer wall of the tubular part blank 1 is extruded and shaped through the hole wall of the extrusion die hole 151. After the shaping is completed, the second hydraulic rod 17 pushes out the shaped tubular part, and then removes the tubular part from the core rod 14. In this scheme, through the pushing action of the first hydraulic rod 12 and the second hydraulic rod 17, the core rod 14 cooperates with the extrusion outer die 15 to extrude and shape tubular part blanks 1 of different lengths, thereby improving the versatility of equipment processing and reducing production costs.

[0023] Furthermore, the temperature control assembly 18 comprises: a casing 181 sleeved on the outer circumference of the sleeve 13, a heating layer 182 is provided on the inner side of the casing 181 for temperature adjustment, and a temperature uniformity layer 183 is provided between the heating layer 182 and the sleeve 13 for balancing the circumferential temperature of the sleeve 13. An annular temperature sensor 184 is provided on the inner wall of the sleeve 13, and the annular temperature sensor 184 is arranged around the outer circumference of the tubular part blank 1 so as to detect the temperature value of the tubular part blank 1. Before the extrusion operation, different temperature parameters are set according to the tubular parts of different materials to adjust the temperature of the tubular part blank 1 so as to have the best extrusion conditions, and the heating layer 182 is heated according to the temperature parameters. When the annular temperature sensor 184 detects that the circumferential temperature of the tubular part blank 1 is balanced and reaches the set temperature parameter, the heating is stopped. Then the second hydraulic cylinder 16 and the first hydraulic cylinder 11 can be started in sequence for extrusion shaping.

[0024] The above-mentioned high-precision extrusion processing equipment 10 can set corresponding temperature parameters according to the pipes made of different materials by arranging the temperature control component 18 on the outer periphery of the sleeve 13, so that when the pipes made of different materials are cold extruded and formed, at room temperature, the temperature of the formed pipe itself can be controlled and adjusted by the temperature control component 18, thereby improving the efficiency and quality of extrusion forming, and then ensuring that the extrusion forming quality of the pipes made of different materials is balanced and stable, with higher versatility, while ensuring production efficiency and reducing production costs.

[0025] As a specific implementation, the heating layer 182 is composed of electric heating wires, and the temperature uniformization layer 183 is composed of a thermally conductive silicone sleeve.

[0026] Furthermore, a cold regulating layer is provided in the temperature uniform layer 183 for cooling the tubular part blank 1, so as to adapt to the pipe with lower temperature requirements. Specifically, the cold regulating layer includes: a plurality of cooling pipes 185 for injecting cooling medium, and the plurality of cooling pipes 185 are distributed circumferentially around the sleeve 13 in the temperature uniform layer 183. The casing 181 is provided with an injection port 186 for injecting cooling liquid or cooling gas and an outlet 187 for discharging liquid or gas, and the injection port 186 and the outlet 187 are both connected to the plurality of cooling pipes 185. And the corresponding ends of the plurality of cooling pipes 185 are interconnected in the temperature uniform layer 183, that is, the two corresponding ends are connected through an annular connecting pipe, and the injection port 186 and the outlet 187 are connected to one of the two annular connecting pipes, or are respectively connected to the two annular connecting pipes. In this way, the tubular part blank 1 can be cooled by injecting a gas with a corresponding low temperature, or by injecting a corresponding low temperature gas, so that the corresponding tubular part blank 1 has the best extrusion conditions. During operation, liquid cooling or gas cooling can be selected according to the material of the different tube-shaped parts blanks 1. The diversity of operation and use can improve the convenience of equipment processing.

[0027] As a specific implementation, an inner annular distance sensor 19 is provided at one end of the mandrel 14 away from the second hydraulic rod 17 for detecting the flatness of the inner wall of the tubular part blank 1. Specifically, an annular guide slope 141 is formed at one end of the mandrel 14 away from the second hydraulic rod 17 for guiding the mandrel 14 to insert into the tubular part blank 1, and the inner annular distance sensor 19 is embedded and installed in the annular guide slope 141 and is arranged concentrically with the mandrel 14. In this way, when the mandrel 14 is withdrawn, the inner annular distance sensor 19 can detect the flatness of the inner wall of the tubular part.

[0028] As a specific implementation, an outer annular distance sensor 20 is installed at the end of the extrusion outer die 15 to detect the flatness of the outer wall of the tubular part blank 1. Specifically, the outer annular distance sensor 20 is distributed around the opening of the extrusion die hole 151 and is concentrically arranged with the mandrel 14. In this way, when the second hydraulic rod 17 pushes out the finalized tubular part, the outer annular distance sensor 20 can detect the flatness of the outer wall of the tubular part.

[0029] By testing the flatness of the tube-shaped parts after forming through the above scheme, the quality of the extrusion forming of the tube-shaped parts can be known in time.

[0030] As a specific embodiment, the high-precision extrusion processing equipment 10 is further provided with a fixed seat 21, and the first hydraulic cylinder 11 and the second hydraulic cylinder 16 are both fixed to the fixed seat 21. A telescopic lever 22 is also provided on the fixed seat 21, and the tubular part can be unloaded by clamping the telescopic lever 22 on the peripheral side of the mandrel 14. A clamping groove is formed on the upper end of the telescopic lever 22 for clamping on the peripheral side of the mandrel 14. When unloading the tubular part, the telescopic lever 22 is extended and clamped on the peripheral side of the mandrel 14 at one end of the tubular part, and then the second hydraulic lever 17 is retracted to withdraw the mandrel 14 to unload the material. The telescopic lever 22 can be driven to extend and retract by a telescopic cylinder.

[0031] 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 above embodiments do not limit the utility model in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the utility model.

Claims

1. A high-precision extrusion processing equipment, characterized in that: include: A first hydraulic cylinder, a first hydraulic lever for limiting the position of the tubular part blank, a sleeve for inserting the tubular part blank, a core rod for inserting into the tubular part blank to extrude and shape the inner wall of the tubular part blank, an extrusion outer die for extruding and shaping the outer wall of the tubular part blank, a second hydraulic cylinder, a second hydraulic lever and a temperature control component for regulating the temperature of the tubular part blank in the sleeve; The first hydraulic lever is slidably mounted on the first hydraulic cylinder to be driven to extend and retract by the first hydraulic cylinder; An exhaust passage is formed at the end of the first hydraulic cylinder for exhausting the pipe-shaped part blank and the mandrel when inserting the mandrel; The sleeve is fixed to the first hydraulic cylinder; The second hydraulic lever is slidably mounted on the second hydraulic cylinder to be driven to extend and retract by the second hydraulic cylinder; The mandrel is fixed to one end of the second hydraulic lever and slides in the second hydraulic cylinder; The extrusion outer die is installed at the end of the second hydraulic cylinder and is formed with an extrusion die hole for inserting the tubular part blank to extrude and shape the outer wall of the tubular part blank; The temperature control assembly comprises: a sleeve shell sleeved on the outer periphery of the sleeve; The inner side of the casing is provided with a heating layer for temperature regulation; A temperature uniformity layer is provided between the heating layer and the sleeve for equalizing the circumferential temperature of the sleeve; The inner wall of the sleeve is provided with an annular temperature sensor for detecting the temperature value of the tube-shaped part blank; The annular temperature sensor is arranged around the outer circumference of the tube-shaped part blank.

2. The high-precision extrusion processing equipment according to claim 1, characterized in that: The heating layer is composed of electric heating wire; The temperature uniformity layer is composed of a heat-conducting silicone sleeve.

3. The high-precision extrusion processing equipment according to claim 1, characterized in that: The temperature uniformity layer is provided with a cold regulating layer for cooling the tube-shaped part blank.

4. The high-precision extrusion processing equipment according to claim 3, characterized in that: The cold conditioning layer comprises: a plurality of cooling pipes for injecting cooling medium; A plurality of cooling tubes are distributed around the circumference of the sleeve in the temperature uniformity layer.

5. The high-precision extrusion processing equipment according to claim 4, characterized in that: The casing is provided with an injection port for injecting cooling liquid or cooling gas and an exhaust port for exhausting liquid or gas; The injection port and the discharge port are both connected to the plurality of cooling pipes.

6. The high-precision extrusion processing equipment according to claim 1, characterized in that: The high-precision extrusion processing equipment is also provided with a fixed seat; The first hydraulic cylinder and the second hydraulic cylinder are both fixed to the fixing seat; The fixing seat is also provided with a telescopic lever for clamping on the peripheral side of the mandrel to withdraw the tubular part; The upper end of the telescopic lever is formed with a clamping groove for clamping on the peripheral side of the core rod.

7. The high-precision extrusion processing equipment according to claim 1, characterized in that: An inner annular distance sensor for detecting the flatness of the inner wall of the tubular part blank is provided at one end of the mandrel away from the second hydraulic lever.

8. The high-precision extrusion processing equipment according to claim 7, characterized in that: An annular guiding slope for guiding the mandrel to be inserted into the tubular part blank is formed at one end of the mandrel away from the second hydraulic lever; The inner annular distance sensor is embedded and installed in the annular guiding inclined surface and is arranged concentrically with the core rod.

9. The high-precision extrusion processing equipment according to claim 1, characterized in that: An outer annular distance sensor for detecting the flatness of the outer wall of the tubular part blank is installed at the end of the extrusion outer die.

10. The high-precision extrusion processing equipment according to claim 9, characterized in that: The outer annular distance sensor is distributed around the opening of the extrusion die hole and is concentrically arranged with the core rod.

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