TWI589371B - Metal member warm-forging control method and die system therefor - Google Patents

Description

Metal member warm forging control method and die system thereof

The invention relates to a method for controlling the warm forging of a metal component and a die system thereof; in particular to a control method for automatic warm forging of a metal component and a die system thereof.

A conventional screw forming system, such as a new type of screw forming machine for sensing die pressure of the Republic of China Patent Publication No. M374927, which discloses a screw forming machine, which is provided with a pressure sensing device and an arithmetic device on a die device The computing device is coupled to the pressure sensing device. The pressure sensing device has at least one sensing component, the sensing component is disposed on the die device, and the sensing component directly faces the punch of the die device, so that when a blank is used by the punch, the After the impact force of the billet is transmitted through one of the adjusting devices of the die device, the sensing member can be directly sensed. Finally, after the calculation device converts into a numerical value, the stamping quality of the die device can be monitored according to the value, and the value can be used as the adjustment base of the adjustment of the punch to accurately adjust the stroke distance of the die device.

However, the screw forming system of No. M374927 does not heat or measure the temperature of the die device or the punch at different temperatures. Therefore, the screw forming system cannot accurately control different forging processing temperatures of different stamping forgings. In addition, the screw forming system does not press and forge different die devices or punches under individual assembly, and thus has the disadvantage of not being able to accurately control different press forging operations.

Another conventional method of processing a screw and a system thereof, such as a bismuth metal-based alloy screw and a manufacturing method thereof of PCT Patent Publication No. WO2004/113742, discloses a method for manufacturing a metal-based alloy screw, comprising: a head forging process, Performing a head processing of forming a screw head on a metal wire made of a metal-based alloy obtained by drawing, to produce a screw blank under warming; a rolling process for forming a thread on the screw blank under warming Rolling of the teeth to make screws. The head processing in the head forging process is performed by using a fixed metal wire holding die and a punch head of the forming screw, and at the same time heating the holding die and the punch, at least the holding die is heated to 140 ° C or higher. And less than or equal to 250 ° C in order to heat the wire to above or equal to 140 ° C, and below 250 ° C.

However, the screw processing system of WO 2004/113742 only heats and measures the temperature of the die holder, the punch holder or the tooth plate, but does not heat or measure the temperature of the individual die or punch at different temperatures. Therefore, the screw processing system cannot accurately control the different forging processing temperatures of different stamping forgings. In addition, the screw processing system does not press and forge different dies or punches under individual assembly, and thus has the disadvantage of not being able to accurately control different press forging operations.

In short, the screw processing system of WO2004/113742 cannot accurately control the different forging processing temperatures of different stamping forgings, and the different molds, dies or punches are not stamped and forged under individual assembly, and there must be further improvement. demand. The above-mentioned No. M374927 and WO2004/113742 are only for reference to the technical background of the present invention and the state of the art is not limited to the scope of the present invention.

In view of the above, in order to meet the above technical problems and needs, the present invention provides a metal member warm forging control method and a mold system thereof, which use a first heating unit to heat a first mold unit [mold unit] to a first Forging temperature, heating a second mold unit [mold unit] to a second forging temperature by using a second heating unit, and using a third The heating unit heats a third mold unit (punch unit) to a first forging temperature or a second forging temperature to perform a continuous warm forging operation at different temperatures to form a metal member to improve the conventional metal member warm forging system The problem of different warm forging temperatures cannot be precisely controlled.

The main object of the present invention is to provide a metal member warm forging control method and a mold system thereof, which use a first heating unit to heat a first mold unit [mold unit] to a first forging temperature, and then use a second heating The unit heats a second mold unit [mold unit] to a second forging temperature, and further heats a third mold unit (punch unit) to a first forging temperature or a second forging temperature by using a third heating unit. In order to perform a continuous warm forging operation at different temperatures to form a metal member for the purpose of continuous warm forging of the metal alloy material.

In order to achieve the above object, a method for warm forging a metal member according to a preferred embodiment of the present invention comprises: providing a metal wire or a metal bar; cutting the metal wire or metal bar to form a metal blank; heating by using a first heating unit a first mold unit [mold unit] to a first forging temperature, and then a second heating unit to heat a second mold unit [mold unit] to a second forging temperature, and then heated by a third heating unit a third mold unit (punch unit); and the first metal mold is subjected to the first forging temperature by the first forging temperature and the third forging unit to perform a first warm forging to form a preliminary forging a metal blank, and the second forged metal blank is further subjected to a second warm forging by the second forging temperature and the third forging unit to form a second forged metal embryo The first heating unit, the second heating unit, and the third heating unit respectively heat the first mold unit, the second mold unit, and the third mold The unit is provided to precisely control the first forging temperature and the second forging temperature to save energy consumption of the first heating unit, the second heating unit and the third heating unit.

The first mold unit of the preferred embodiment of the present invention has a first thermal insulation sleeve device, the second mold unit having a second thermal insulation sleeve device, the third mold unit having a third thermal insulation sleeve Device.

In the preferred embodiment of the present invention, the first mold unit has a first temperature sensor for measuring a first forging temperature of the first mold unit, and the second mold unit has a second temperature sensor, The second forging temperature of the second mold unit is measured, and the third mold unit has a third temperature sensor to measure the forging temperature of the third mold unit.

In a preferred embodiment of the present invention, a fourth heating unit is used to heat a fourth mold unit to a third forging temperature, and the second forging metal blank is used by the fourth die unit to the third forging temperature and the first The die forging of the three die unit is continuously subjected to the third warm forging to form a third forged metal blank.

In addition, the metal member warm forging die system of the preferred embodiment of the present invention comprises: a main mold body including at least a first chamber and a second chamber; and a first mold unit (mold unit), which is disposed a first chamber of the main mold body; a first heating unit disposed on the first mold unit, the first mold unit being heated by the first heating unit to a first forging temperature; and a second mold a unit (molding unit) disposed in the second chamber of the main mold body; a second heating unit disposed on the second mold unit, the second heating unit heating the second mold unit to the first Second forging a third mold unit (punch unit) corresponding to the first mold unit or the second mold unit; and a third heating unit disposed on the third mold unit, using the third The heating unit heats the third mold unit; wherein a metal blank is first forged by the first die unit with the first forging temperature and the third die unit to form a preliminary forged metal blank And then, the first forged metal blank is continuously forged by the second die unit by the second forging temperature and the third die unit to form a second forged metal blank.

The first mold unit of the preferred embodiment of the present invention has a first thermal insulation sleeve device, the second mold unit having a second thermal insulation sleeve device, the third mold unit having a third thermal insulation sleeve Device.

In the preferred embodiment of the present invention, the first mold unit includes at least one first heating hole, the first heating unit is assembled to the first heating hole, and the second mold unit includes at least one second heating hole, the second heating The unit is assembled to the second heating hole, and the third mold unit includes at least one third heating hole, and the third heating unit is assembled to the third heating hole.

In the preferred embodiment of the present invention, the first mold unit has a first temperature sensor for measuring a first forging temperature of the first mold unit, and the second mold unit has a second temperature sensor, The second forging temperature of the second mold unit is measured, and the third mold unit has a third temperature sensor to measure the forging temperature of the third mold unit.

In the preferred embodiment of the present invention, the first mold unit includes a first temperature sensing hole, the first temperature sensor is assembled to the first temperature sensing hole, and the second mold unit includes a second temperature sensing. a second temperature sensor is assembled to the second temperature sensing hole, the third mold unit includes a third temperature sensing hole, and the third temperature sensor is assembled to the third temperature Sensing hole.

The preferred embodiment of the present invention further includes a fourth mold unit and a fourth heating unit, wherein the fourth mold unit is heated to a third forging temperature by the fourth heating unit, and the second forged metal blank is utilized. The fourth mold unit continuously performs the third warm forging with the third forging temperature and the forging of the third mold unit to form a third forged metal blank.

1‧‧‧Main mold body

11‧‧‧First room

12‧‧‧Second room

13‧‧‧ third room

11’‧‧‧First Room

12’‧‧‧Second room

1'‧‧‧ Punch subject

1"‧‧‧ punch main body

21‧‧‧First mold unit

210‧‧‧Insulation sleeve device

211‧‧‧heating holes

212‧‧‧temperature sensing hole

213‧‧‧Forged hole

214‧‧‧ stomata

22‧‧‧Second mold unit

23‧‧‧ Third mold unit

24‧‧‧4th mold unit

24'‧‧‧4th mold unit

24"‧‧‧4th die unit

21’‧‧‧First Mold Unit

22’‧‧‧Second mold unit

25‧‧‧ Temperature display

A‧‧‧ trimming

Fig. 1 is a schematic view showing a control method for warm forging of a metal member according to a preferred embodiment of the present invention.

1A is a schematic view showing the structure of a metal member warm forging die system according to a preferred embodiment of the present invention.

Figure 2 is a perspective view of a metal member warm forging die system in accordance with a preferred embodiment of the present invention.

Fig. 3 is a perspective exploded view of a metal member warm forging die system according to a preferred embodiment of the present invention using a die unit and an insulating sleeve device.

Fig. 4 is a perspective view showing a three-dimensional assembly diagram of a mold unit and a heat insulating sleeve device for a metal member warm forging die system according to a preferred embodiment of the present invention.

Fig. 5 is a perspective view showing a warm forging die system for a metal member according to another preferred embodiment of the present invention.

Figure 6 is a perspective view showing a warm forging die system of a metal member according to another preferred embodiment of the present invention.

In order to fully understand the present invention, the preferred embodiments of the present invention are described in detail below, and are not intended to limit the invention.

The metal member warm forging control method and the die system thereof according to the preferred embodiment of the present invention are suitable for producing various metal screw components, metal bolt components, metal nut components, metal rivet components, Metal fastener or other metal Alloy member, but it is not intended to limit the scope of the invention.

1 is a schematic view showing a control method for warm forging of a metal member according to a preferred embodiment of the present invention; and FIG. 1A is a schematic view showing the structure of a warm forging die system for a metal member according to a preferred embodiment of the present invention, which corresponds to FIG. Referring to FIGS. 1 and 1A, the method for warm forging a metal member according to a preferred embodiment of the present invention first provides a metal wire or a metal bar in a first execution step S1, and uses a preheating die to automate the continuous process. The metal wire or metal rod is produced by a continuous production method. In addition, the metal wire or metal rod is made of an ingot or other metal alloy material.

Referring to FIGS. 1 and 1A again, the metal member warm forging control method according to the preferred embodiment of the present invention is followed by cutting the metal wire or metal rod into a metal blank in the second performing step S2. And the metal blank has a predetermined size specification. In a preferred embodiment of the invention, the metal wire or metal rod can be cut using an automatic cutting machine.

Referring to FIG. 1A again, for example, the metal member warm forging die system of the preferred embodiment of the present invention includes at least a first die unit, a die unit, and a second die unit. The unit], a third mold unit (mold unit) and a fourth mold unit (punch unit) comprise two, three or more mold units and one or more punch units. The punch unit of the fourth die unit is forged onto the die unit of the first die unit, the second die unit or the third die unit, as indicated by the arrow in FIG. 1A.

2 is a perspective view showing a metal member warm forging die system according to a preferred embodiment of the present invention; and FIG. 3 is a perspective view showing a three-dimensional decomposition of a metal member warm forging die system using a die unit and a heat insulating sleeve device according to a preferred embodiment of the present invention; Figure, which corresponds to the die unit of Figure 2; Figure 4 discloses a metal member warm forging die system of the preferred embodiment of the present invention using a mold A three-dimensional combination of the element and the heat insulating sleeve device corresponds to FIG. Referring to Figures 2 to 4, the metal member warm forging die system of the preferred embodiment of the present invention comprises a main die body 1, a punch body 1', a first die unit [molding unit] 21, and a a second mold unit [mold unit] 22, a third mold unit [mold unit] 23, and a fourth mold unit [punch unit] 24, and the first mold unit 21, the second mold unit 22, and the The three mold units 23 are spatially spaced apart from each other in the main mold body 1. In contrast, the fourth mold unit 24 is disposed in the punch body 1'.

Referring to Figures 2 to 4 again, the main mold body 1 is suitably fixed to a die machine. The main mold body 1 includes a first chamber 11, a second chamber 12, and a third chamber 13 or other chambers, and each of the first chamber 11 and the second chamber 12 and The third chamber 13 may or may not be provided with an insulated inner surface, but is not intended to limit the scope of the invention. The first mold unit 21, the second mold unit 22, and the third mold unit 23 are correspondingly received and fixed in the first chamber 11, the second chamber 12, and the third chamber 13, as in the first assembly. Figure 2 shows.

Referring to FIGS. 3 and 4 again, for example, the first mold unit 21 includes a thermal-isolating sleeve or an assembly sleeve 210, and a plurality of heating holes. Heater hole 211 and a thermal sensor hole 212. The insulated sleeve device 210 of the preferred embodiment of the present invention has a heat insulating function with various outer contour shapes. In addition, the heat insulating sleeve device 210 is a combination fixing sleeve for combining the first mold unit 21 in the first chamber 11, and the heat insulating sleeve device 210 is used to avoid The first mold unit 21 is difficult to assemble or disassemble, but the heat insulating sleeve device 210 can be omitted. The heating hole 211 includes a side groove portion perpendicular to the longitudinal direction of the heating hole 211 to assemble a first heating unit. For example, the heating unit includes at least one or a plurality of heaters for heating in stages. In contrast, the temperature sensing hole 212 includes a side groove portion perpendicular to the longitudinal direction of the temperature sensing hole 212 to assemble a first temperature sensor. The number of the temperature sensing holes 212 is at least one or several, and the position thereof may be elastically set to detect the temperature of each position of the mold unit by using a plurality of temperature sensing units.

Referring to FIGS. 2 to 4 again, a center of the first mold unit 21 is provided with a forging die hole 213 for warm forging the metal blank. The forging die hole 213 has a longitudinal depth for receiving the length of the metal blank. In addition, one end of the forging die hole 213 is connected to an air hole 214 as shown in FIG. The forging die hole 213 and the heating hole 211 and the temperature sensing hole 212 have a predetermined safety distance to avoid affecting the first heating unit and the first temperature sensor.

Referring to FIGS. 1, 1A, 2, 3 and 4 again, the second mold unit 22, the third mold unit 23, and the fourth mold unit 24 have components corresponding to the first mold unit 21 (for example: The heating hole, the temperature sensing hole or the side groove portion are incorporated herein by reference and will not be described in detail. For example, the heating hole 211, the temperature sensing hole 212, the forging die hole 213 and the air hole 214 of the first die unit 21 correspond to the heating hole, the temperature sensing hole, the forging die hole and the air hole of the fourth die unit 24. .

Referring to FIGS. 1 to 4 again, the metal member warm forging method according to the preferred embodiment of the present invention is followed by selecting, in a third execution step S3, heating the first mold unit by using a first heating unit. 21 to a first forging temperature, using a second heating unit to heat the second mold unit 22 to a second forging temperature, and then heating the third mold unit 23 to a third heating unit The third forging temperature. Thus, the first forging temperature, the second forging temperature and the third forging temperature are adjusted to different high and low temperatures according to the requirements of different forging processes to save energy consumption of the heating unit.

Referring to FIGS. 1 to 4 again, the metal member warm forging method according to the preferred embodiment of the present invention is followed by the fourth step S4, the metal blank member is utilized by the first die unit 21 for the first forging. The temperature and the forging of the fourth die unit 24 are subjected to a first warm forging to form a preliminary forged metal blank. Then, the preliminary forged metal blank is further subjected to the second forging process by the second forging temperature and the forging of the fourth die unit 24 to form a second forged metal blank. Pieces. Then, the second forged metal blank is further subjected to the third forging by the third forging temperature and the forging of the fourth die unit 24 to form a third forging. Metal blanks.

Referring to FIGS. 1 to 4 again, the first heating unit, the second heating unit, the third heating unit, and the fourth heating unit respectively heat the first mold unit 21, the second mold unit 22, and the third mold unit. And a fourth mold unit 24 for accurately controlling the first forging temperature, the second forging temperature and the third forging temperature to save energy consumption of the first heating unit, the second heating unit and the third heating unit ].

Referring to Figures 1, 1A and 2, the first forging temperature, the second forging temperature and the third forging temperature are selectively adjusted to increase or decrease the forging temperature, or the second, depending on the characteristics of the metal alloy. The forging temperature is selected to be higher than the first forging temperature and the third forging temperature, or the second forging temperature is selected to be lower than the first forging temperature and the third forging temperature.

Fig. 5 is a perspective view showing a metal member warm forging die system according to another preferred embodiment of the present invention. Referring to FIG. 5, the metal member warm forging die system of the preferred embodiment of the present invention comprises only one main die body 1, two punch bodies 1', 1", two first die units 21, 21', and two. Second mold unit 22, 22' and two fourth mold units 24', 24", ie two different sets of mold units, and the size of the first mold unit 21, 21 ' and the second mold unit 22, 22' or Different shapes, with appropriate spacing Arranged in the main mold body 1. In addition, the first mold unit 21, 21' and the second mold unit 22, 22' have different diameters or lengths to prevent the first mold unit 21, 21' and the second mold unit 22, 22' from being placed. The wrong assembly position is within the main mold body 1. The first mold unit 21 and the second mold unit 22 are correspondingly received and fixed in the first chamber 11 and the second chamber 12, and the first mold unit 21' and the second mold unit are assembled. 22' is correspondingly fixed in the first chamber 11' and the second chamber 12'.

Referring to FIG. 5 again, in order to further avoid placing the wrong assembly position, the first mold unit 21 and the second mold unit 22 have all sides a, and the cutting edge a of the first mold unit 21 is oriented in the same direction. The direction of the cut edge a of the two die units 22 is different. In order to further distinguish different mold units, the double mold unit of the first mold unit 21 and the second mold unit 22 adopts a circular mold corresponding to the double punch unit of the fourth mold unit 24", and the first mold The double-mold unit of the unit 21' and the second mold unit 22' employs a non-circular mold, such as a square or rectangular mold, which corresponds to the double punch unit of the fourth mold unit 24'.

Figure 6 is a perspective view showing a metal member warm forging die system according to another preferred embodiment of the present invention. Referring to FIG. 6, the metal member warm forging die system of the preferred embodiment of the present invention comprises a main die body 1, a punch body 1', a first die unit 21, a second die unit 22, and a The fourth mold unit 24 and a temperature display 25 are used to display the temperatures of the first mold unit 21 and the second mold unit 22 to accurately control the forging temperature.

The foregoing preferred embodiments are merely illustrative of the invention and the technical features thereof, and the techniques of the embodiments can be carried out with various substantial equivalent modifications and/or alternatives; therefore, the scope of the invention is subject to the appended claims. The scope defined by the scope shall prevail. The copyright limitation of this case is used for the purpose of patent application in the Republic of China.

1‧‧‧Main mold body

1'‧‧‧ Punch subject

11‧‧‧First room

12‧‧‧Second room

13‧‧‧ third room

21‧‧‧First mold unit

22‧‧‧Second mold unit

23‧‧‧ Third mold unit

24‧‧‧4th mold unit

Claims (10)

A method for controlling a warm forging of a metal member, comprising: providing a metal wire or a metal rod; cutting the metal wire or metal rod to form a metal blank; heating a first mold unit to a first by using a first heating unit Forging temperature, heating a second mold unit to a second forging temperature by a second heating unit, heating a third mold unit with a third heating unit; and using the first mold unit with the metal blank member The first forging temperature and the forging of the third die unit are subjected to a first warm forging to form a preliminary forged metal blank, and the preliminary forged metal blank is utilized by the second die unit to the second forging temperature And the forging of the third mold unit is continuously subjected to the second warm forging to form a second forged metal blank; wherein the first heating unit, the second heating unit and the third heating unit respectively heat the first mold a unit, a second mold unit and a third mold unit for precisely controlling the first forging temperature and the second forging temperature to save the first heating unit and the second heating sheet And a third heating unit of energy. The method for controlling the forging of a metal member according to the first aspect of the invention, wherein the first mold unit has a first heat insulating sleeve device, and the second mold unit has a second heat insulating sleeve device, the first The three mold unit has a third insulating sleeve device. The method for controlling the forging of a metal member according to the first aspect of the invention, wherein the first mold unit has a first temperature sensor for measuring a first forging temperature of the first mold unit, the second mold The unit has a second temperature sensor for measuring the second forging temperature of the second mold unit, and the third mold unit has a third temperature sensor for measuring the forging temperature of the third mold unit. The method for controlling the forging of a metal member according to the first aspect of the patent application, wherein the fourth heating unit is further heated by a fourth heating unit to a third forging temperature, and the second forged metal blank is utilized. Four mold The unit performs the third warm forging continuously with the third forging temperature and the forging of the third die unit to form a third forged metal blank. A metal member warm forging die system, comprising: a main mold body comprising at least a first chamber and a second chamber; a first mold unit disposed in the first chamber of the main mold body; a first heating unit disposed on the first mold unit, the first mold unit is heated by the first heating unit to a first forging temperature; and a second mold unit is disposed in the main mold body a second chamber; a second heating unit disposed on the second mold unit, the second mold unit is heated by the second heating unit to a second forging temperature; a third mold unit corresponding to the second mold unit a first mold unit or a second mold unit; and a third heating unit disposed on the third mold unit, the third mold unit being heated by the third heating unit; wherein the first metal part is utilized The mold unit performs the first warm forging with the first forging temperature and the forging of the third die unit to form a preliminary forged metal blank, and the preliminary forged metal blank is used by the second die unit. Two forging temperature and the forging punch of the third mold unit for a second successive isothermal forging, forging to form a second metal blank. The metal member warm forging die system according to claim 5, wherein the first die unit has a first heat insulating sleeve device, and the second die unit has a second heat insulating sleeve device, the first The three mold unit has a third insulating sleeve device. The metal member warm forging die system according to claim 5, wherein the first die unit comprises at least one first heating hole, the first heating unit is assembled to the first heating hole, and the second die unit comprises At least one second heating hole, the second heating unit is assembled to the second heating hole, the third mold unit includes at least one third heating hole, and the third heating unit is assembled to the third heating hole. Warm-forging mold system for metal members according to item 5 of the patent application scope The first mold unit has a first temperature sensor for measuring a first forging temperature of the first mold unit, and the second mold unit has a second temperature sensor for measuring the first a second forging temperature of the second mold unit, the third mold unit having a third temperature sensor to measure the forging temperature of the third mold unit. The metal member warm forging die system according to claim 8 , wherein the first mold unit comprises a first temperature sensing hole, and the first temperature sensor is assembled to the first temperature sensing hole, The second mold unit includes a second temperature sensing hole, the second temperature sensor is assembled to the second temperature sensing hole, and the third mold unit includes a third temperature sensing hole, the third temperature sensing The device is assembled to the third temperature sensing hole. The metal member warm forging die system according to claim 5, further comprising a fourth die unit and a fourth heating unit, wherein the fourth die unit is heated by the fourth heating unit to a third forging temperature, The second forged metal blank is continuously subjected to a third warm forging by the fourth forging unit and the third forging temperature and the third die unit to form a third forged metal blank.