TWI513929B - Tool and Method of Integrally Forming Manifold - Google Patents

Description

Manifold integrated forming tool and method

This invention relates to an integrally formed tool and method, and more particularly to a tool and method for making an integrally formed manifold.

The manifold is a standard part that is extruded by hot work and has a fixed length. It is generally arranged in the branch of the main pipe to divert the gas or fluid in the main line pipe, or to add a pressure gauge or to configure a throttle valve for Controlling the flow of gases or fluids, such manifold configurations are commonly used in various industrial applications. The general industrial main line pipes are all metal pipes, which have certain strength and ductility. Since the manifolds are separated by the main line pipes, the general manifolds are formed by welding with manifold joints, not by main line pipes. It is integrally formed, so it is slightly insufficient in overall strength. In addition, it takes a lot of time and money to process by welding, which is very inconvenient.

In order to solve the above-mentioned problems, it is a primary object of the present invention to provide a manifold forming tool which can easily and quickly process a main line tube to form an integrally formed manifold.

In accordance with the above objects, the present invention provides a manifold integrated forming tool for processing hollow metal tubes (long main line tubes) to form one or more manifolds, the hollow metal tubes having pre-drilled holes. The manifold integrated forming tool comprises: a mandrel having a conical shape, a joint portion above the mandrel, and a positioning protrusion below the mandrel; a pressing plate having an arched shape on the lower surface thereof, the pressing plate having a hollow portion, And forming a peripheral platform around the hollow portion, the pressure plate is located above the mandrel; a sleeve is a hollow tubular body having a closed end and an open end, the sleeve is located above the hollow portion of the pressure plate, and the open end is seated On the peripheral platform, the closed end is formed with a continuous perforation; a screw is a long rod having an external thread, having a first end and a second end opposite the first end, the first end Having a joint portion, the screw passes through the hollow portion of the pressure plate and enters the sleeve, the second end passes through the through hole, and the outer diameter of the screw is equal to the diameter of the through hole, and the joint portion and the joint portion are combined with each other; A nut has an internally threaded screw hole, and the screw hole is sleeved on the second end of the screw, and the internal thread is engaged with the external thread.

Another main object of the present invention is to provide a method of forming a main-line tube integrally formed manifold, which can be easily and quickly processed to form a manifold.

According to the above object, the present invention provides a method for integrally forming a manifold for processing a hollow metal tube, and the hollow metal tube has a formed pre-drilled hole, and a method for integrally forming the manifold, the steps comprising: providing a hollow metal tube, hollow a tube formed on the wall of the metal tube; a positioning rod provided with a positioning groove; a manifold integrated forming tool according to claim 1; Positioning the positioning protrusion of the mandrel on the positioning groove, inserting the positioning rod into the hollow metal tube, and aligning the joint portion with the forming pre-drilled hole; attaching the lower surface of the pressure plate to the outer surface of the hollow metal tube to make the hollow portion Aligning the forming pre-drilled hole; passing the first end of the screw through the forming pre-drilling hole, so that the joint portion and the joint portion are combined with each other; rotating the nut to displace the engaged screw upward, and driving the joint core to axially displace; The positioning rod is separated from the mandrel; and the forming pre-drilled hole of the hollow metal tube is gradually expanded and stretched and extended upward.

The manifold integrated forming tool and method of the present invention can complete the processing without excessively transferring the forming force to the pipe by a simple configuration, and can not only avoid the improper force caused by the manifold forming. The tube is deformed and provides a convenient and quick forming method.

1‧‧‧Manifold integrated forming tool

10‧‧‧ mandrel

101‧‧‧Combination Department

103‧‧‧Positioning bumps

20‧‧‧ pressure plate

201‧‧‧ lower surface

203‧‧‧ Hollow

2031‧‧‧ Peripheral platform

30‧‧‧ sleeve

301‧‧‧closed end

3011‧‧‧through holes

303‧‧‧Open end

40‧‧‧ screw

401‧‧‧ first end

4011‧‧‧Interface

403‧‧‧ second end

50‧‧‧ Nuts

501‧‧‧ screw hole

52‧‧‧shims

60‧‧‧ hollow metal tube

601‧‧‧Formed pre-drilling

70‧‧‧ Positioning rod

701‧‧‧ positioning slot

80‧‧‧Management

900, 901, 902, 903, 904, 905, 906, 907, 908, 909 ‧ ‧ steps

1 is a schematic view of a manifold integrated forming tool according to an embodiment of the present invention; FIG. 2A is a schematic view showing a component arrangement of a manifold integrated forming tool in a forming manifold according to an embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 3 is a schematic cross-sectional view showing a component arrangement of a manifold integrated forming tool in forming a manifold; FIG. 3 is an embodiment of a manifold integrated forming tool in forming a manifold according to an embodiment of the present invention; 4 is a schematic flow chart of a method for integrally forming a manifold according to an embodiment of the present invention.

The present invention will be understood by those skilled in the relevant art, and the present invention will be described in the following description. The invention is further illustrated by the following examples, which are not intended to limit the invention, and the following drawings are intended to be illustrative of the features of the invention.

First, please refer to FIG. 1 , which is a schematic view of a manifold integrated forming tool according to an embodiment of the present invention. As shown in Fig. 1, the manifold integrated forming tool 1 includes a pressing plate 20, and a lower surface 201 thereof is formed in an arch shape. The pressing plate 20 has a hollow portion 203, and a peripheral platform 2031 is formed at the periphery of the hollow portion 203. The sleeve 30 is a hollow tubular shape having a closed end 301 and an open end 303. The sleeve 30 is located above the hollow portion 203 of the pressure plate 20, and the open end 303 is seated on the peripheral platform 2031, and the closed end 301 is formed. a through hole 3011; a screw 40, which is a long rod having an external thread, has a first end 401 and a second end 403 opposite the first end 401, the first end 401 has a joint portion 4011, and the screw 40 passes through The hollow portion 203 of the pressure plate 20 enters the sleeve 30, wherein the second end 403 passes through the through hole 3011 of the closed end 301, and the outer diameter of the screw 40 is equal to the diameter of the through hole 3011; a nut 50 is a The kit has an internally threaded screw hole 501, and the screw hole 501 is sleeved on the second end 403 of the screw 40, and the internal thread is engaged with the external thread; and a mandrel 10 is a conical shape, and the mandrel 10 There is a joint portion 101 on the upper side, and a positioning protrusion 103 is arranged under the mandrel 10, and the joint portion 101 The screw 40 engages the first end 401 of the engaging portion 4011.

Next, please refer to FIG. 2A and FIG. 2B simultaneously, which are schematic diagrams showing the arrangement of components of the manifold integrated forming tool in the forming manifold according to an embodiment of the present invention. First, a hollow metal tube 60 is provided, which is a metal tube having a pre-drilled shaped pre-drilled hole 601 for processing into a manifold; and then a positioning rod 70 having a positioning groove 701 thereon is provided. (eg: rectangular groove). When the hollow metal tube 60 is processed, the mandrel 10 is first placed on the positioning groove 701 of the positioning rod 70, so that the positioning protrusion 103 of the mandrel 10 is engaged with the positioning groove 701 to avoid displacement during processing; The slot 701 penetrates into the hollow metal tube 60 and causes the mandrel 10 The upper joint 101 is aligned with the shaped pre-drilled hole 601. Next, the arched lower surface 201 of the platen 20 is placed over the shaped pre-drilled hole 601, and its arcuate lower surface 201 is disposed in conformity with the curved outer surface of the hollow metal tube 60; The end 303 is disposed on the peripheral platform 2031 of the pressure plate 20, and the through hole 3011 of the closed end 301 of the sleeve 30 is aligned with the shaped pre-drilled hole 601. Then, the first end 401 of the screw 40 is simultaneously passed through the through hole 3011 of the sleeve 30 and the formed pre-drilled hole 601 of the hollow metal tube 60, and the joint portion 4011 of the first end 401 is combined with the upper portion of the mandrel 10. The portion 101 is joined. Finally, the screw hole 501 of the nut 50 is sleeved on the second end 403 of the screw 40, that is, the arrangement of the manifold integrated forming tool 1 is completed. In addition, a gasket 52 may be further disposed between the nut 50 and the sleeve 30 to prevent friction between the nut 50 and the sleeve 30.

Please refer to FIG. 3, which is a schematic view showing the implementation of the manifold integrated forming tool in the forming manifold according to an embodiment of the present invention. As shown in Fig. 3, when the manifold integrated forming tool 1 is set, at this time, since the screw 40 is engaged with the mandrel 10, it is in a state in which it cannot be rotated, so when the screw is rotated by an external force (such as a wrench) When the cap 50 is used, the screw 40 is vertically displaced due to the relationship between the inner and outer threads, and the mandrel 10 is pulled out from the inside of the hollow metal tube 60 to form the pre-drilled hole 601. The mandrel 10 is a conical shape, so that when the mandrel 10 is pulled out by the shaped pre-drilled hole 601, since the hollow metal pipe 60 has metal characteristics, the formed pre-drilled hole 601 is slowly expanded and stretched upward, so that It forms a manifold 80. The function of the positioning rod 70 is that the positioning mandrel 10 and the fixing screw 40 do not rotate during forming. When the mandrel 10 is displaced upward, the positioning rod 70 can be removed; and the upwardly displaced mandrel 10 is stuck. The formed pre-drilled hole 601 is stretched and stretched, whereby the locking prevents the rotation of the fixing screw 40, and the rotation of the mandrel 10 continues to be displaced upward by the rotating nut 50. By virtue of the manifold forming method, the forming force can be prevented from being excessively transmitted to the hollow metal pipe 60, and the hollow metal pipe 60 can be prevented from being improperly deformed or even damaged, and the manifold 80 can be made convenient and fast by such a simple configuration. Forming. In the present invention, the plurality of positioning grooves 701 are disposed on the positioning rod 70, and the plurality of sets of the manifold integrated forming tools 1 are disposed to simultaneously process the plurality of manifolds. The present invention is not limited in the number of processing.

Please refer to FIG. 4, which is a schematic flow chart of a method for integrally forming a manifold according to an embodiment of the present invention. As shown in Fig. 4, the manifold integrated forming method is as follows:

Step 900: providing a hollow metal tube 60 and having a shaped pre-drilled hole 601 on the wall of the hollow metal tube 60; and proceeding to step 901.

Step 901: providing a positioning rod 70 having a positioning slot 701; entering step 902.

Step 902: A manifold integrated forming tool 1 is provided, the structure of which is as described in FIG. 3 of FIG. 1 and will not be described herein again;

Step 903: separating the joint portion 101 and the joint portion 4011, and separating the joint portion 101 of the mandrel 10 from the joint portion 4011 of the screw 40; and proceeding to step 904.

Step 904: Dispose the mandrel 10 in the positioning groove 701, arrange the positioning protrusion 103 of the mandrel 10 on the positioning groove of the positioning rod 70, and insert the positioning rod 70 into the hollow metal tube 60 to make the joint of the mandrel 10 101 is aligned with the pre-drilled hole 601; step 905 is entered.

Step 905: attaching the pressure plate 20 to the outer surface of the hollow metal tube 60, aligning the hollow portion 203 of the pressure plate 20 with the shaped pre-drilled hole 601 of the hollow metal tube 60; and proceeding to step 906.

Step 906: The first end 401 of the screw 40 is passed through the forming pre-drilled hole 601, and the joint portion 101 of the screw 40 and the joint portion 101 of the mandrel 10 are joined to each other;

Step 907: Rotate the nut 50 to displace the engaged screw 40 upwardly and drive the engaged mandrel 10 upward; and proceed to step 908.

Step 908: Pull away from the positioning rod 70 to separate it from the mandrel 10; proceed to step 909.

Step 909: The screw 40 drives the mandrel 10 to the outside of the forming pre-drilled hole 601 of the hollow metal pipe 60, so that the forming pre-drilled hole 601 of the hollow metal pipe 60 is gradually expanded due to the outer axial extension of the core and is stretched upward. Extend to form a manifold as shown in Figure 3.

By the steps of the manifold integrated forming method, the forming force can be prevented from being excessively transmitted to the hollow metal pipe 60, and the hollow metal pipe 60 can be prevented from being improperly deformed or even damaged, and the manifold 80 can be further configured by such a simple configuration. Easy and fast forming.

Although the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the present invention, and it is to be understood that those skilled in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The patent protection scope of the present invention is defined by the scope of the patent application attached to the specification.

1‧‧‧Manifold integrated forming tool

10‧‧‧ mandrel

101‧‧‧Combination Department

103‧‧‧Positioning bumps

20‧‧‧ pressure plate

201‧‧‧ lower surface

203‧‧‧ Hollow

2031‧‧‧ Peripheral platform

30‧‧‧ sleeve

301‧‧‧closed end

3011‧‧‧through holes

303‧‧‧Open end

40‧‧‧ screw

401‧‧‧ first end

4011‧‧‧Interface

403‧‧‧ second end

50‧‧‧ Nuts

501‧‧‧ screw hole

52‧‧‧shims

Claims (3)

The utility model relates to a manifold integrated forming tool, comprising: a mandrel having a conical shape, a joint portion above the mandrel, and a positioning protrusion below the mandrel; a pressing plate having a lower surface forming an arch shape, the pressing plate having a hollow portion, and a peripheral platform is formed on the periphery of the hollow portion, the pressure plate is located above the mandrel; a sleeve is a hollow tubular body having a closed end and an open end, the sleeve is located at the pressure plate Above the hollow portion, the open end is seated on the peripheral platform, and the closed end is formed with a continuous perforation; a screw is a long rod having an external thread, having a first end and one opposite the first end a second end, the first end has a joint portion, the screw passes through the hollow portion of the pressure plate and enters the sleeve, the second end passes through the through hole, and the outer diameter of the screw is coupled to the The through hole has the same size of the aperture, the joint portion and the joint portion are coupled to each other; and a nut having an internally threaded screw hole, the screw hole being sleeved at the second end of the screw, the internal thread and the thread External threaded joint. The manifold integrated forming tool according to claim 1, further comprising a gasket disposed between the nut and the closed end of the sleeve. A method for integrally forming a manifold, comprising the steps of: providing a hollow metal tube having a shaped pre-drilled hole in a wall of the hollow metal tube; providing a positioning rod having a positioning groove; providing the first item as claimed in the patent application The manifold integrally forming tool; separating the joint portion and the joint portion; disposing the positioning protrusion of the mandrel on the positioning groove, and inserting the positioning rod into the hollow metal tube, so that the The joint portion is aligned with the shaped pre-drilled hole; the lower surface of the press plate is attached to the outer surface of the hollow metal tube to align the hollow portion with the shaped pre-drilled hole; the first end of the screw is passed through the Forming a pre-drilled hole, the joint portion and the joint portion are coupled to each other; rotating the nut to displace the screw that is engaged upward and to drive the axial displacement of the joint; Pulling the positioning rod away from the mandrel; and the screw drives the core axially out of the shaped pre-drilled hole of the hollow metal tube, so that the shaped pre-drilled hole of the hollow metal tube is due to the heart Pull out axially and gradually expand and stretch upwards.