JP2006207131A - Part for point switch-and-lock movement apparatus and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase productivity and reliability in parts for a switch-and-lock movement apparatus used as the parts of the front rod, connection lever, switch adjuster, signal iron tube of the switch-and-lock movement apparatus. <P>SOLUTION: A prescribed machining such as threading is applied to a bar-like rod member 60. A jaw member 61 of approximately U-shape is forged and a prescribed machining such as drilling is applied thereto. Then, the jaw member 61 is joined to one end part of the rod member 60 by friction welding to provide a rod-like part 59 for the switch-and-lock movement apparatus. Since the overall length of each of the parts can be reduced, a forging process can be mechanized and automated, and the productivity and reliability can be increased by promoting the mechanization and automization. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a switch device component used as a component such as a front rod, a connecting rod, a switch adjuster, and a signal iron pipe in a switch device for branching a railroad track, and a manufacturing method thereof.

  An example of a general turning device for branching a railroad track will be described with reference to FIG. As shown in FIG. 5, the switch device 1 converts and locks a single-open branching device 2 that branches a curved track (branch line) from one straight track (reference line), and this branching device 2. And an electric switch 3 for the purpose.

  The branching device 2 has left and right basic rails 4 and 5 and a movable tongler 6, and by moving the tongrel 6 and bringing it into close contact with either the left or right basic rails 4 or 5, A vehicle on the track can be guided along the basic rail to a reference line or a branch line.

  The electric switch 3 is provided with an operating lever 7 and a locking canister 8, which is connected to the Tongler 6 via a switch adjuster 9, and the locking can 8 is connected to a connecting can 10. And, it is connected to the tip of the Tongrel 6 via the front rod 11. Then, the electric motor 12 is used to operate the operating can 7 and the locking can 8, the operation 7 can be used to change the Tongle rail 6, and can be brought into close contact with the left and right basic rails 4, 5. Check and maintain status.

  In addition, the switch device 1 is provided with a switch adjuster 9A at the intermediate portion of the tongrel 6 corresponding to the long tongrel 6, and includes a link rod 13, a right angle crank 14, a signal iron pipe 15, an adjuster. The operation of the operating cannula 7 is transmitted to the switch adjuster 9A at the intermediate portion of the Tongle rail 6 through the crank 16, so that the Tongle rail 6 can be converted smoothly.

  As shown in FIG. 6 and FIGS. 7A and 7B, the switch adjuster 9 has a cylindrical portion 18 of the arm metal 17 connected to the Tongrel 6 side and a rod 19 connected to the operating rod 7 side. The threaded portion 20 is inserted, and the sleeve nut 21 and the lock nut 22 are screwed into the threaded portion 20 to allow a certain relative movement between the rod 19 and the arm bracket 17, and thereby the stroke of the operating can 7. And adjustment of the conversion stroke of Tongleil 6. The arm metal 17 is provided with a rotation stopper 23 for preventing the sleeve nut 21 and the lock nut 22 from loosening. The detent 23 is fixed by inserting a pin 24 erected on the arm metal 17 and attaching a split pin (not shown) to the tip thereof. The pin 24 is inserted into the pin hole 25 of the arm bracket 17 and fixed by caulking one end portion 24A thereof. The pin 24 is provided with a split pin hole 26 through which the split pin is inserted.

  As shown in FIGS. 8A and 8B, the front rod 11 connects a pair of substantially L-shaped elbows 27 and 28 coupled to the Tongrel 6 and the elbows 27 and 28. Connecting plate 29, rod 30 and scoop jaw 31, adjustment fitting 32 through which the rod 30 is inserted, and lock nut 33 that is screwed onto the threaded portion of the rod 30 to fix the scoop jaw 31 and adjustment fitting 32. , And a jaw pin 34 for joining the jaw portions. One end of the connecting can 10 is connected to the connecting portion 35 of the adjustment fitting 32.

  As shown in FIG. 9, the connecting can 10 has a substantially U-shaped jaw 36 integrally formed at one end thereof, a screw portion 37 formed at the other end thereof, and a substantially U-shaped scrub jaw 38 and a lock. A nut 39 is screwed. The jaw 36 is coupled to the connecting portion 35 of the adjustment fitting 32 of the front rod 11 by the jaw pin 40, and the screw jaw 38 is coupled to the lock can 8 of the electric rolling machine 3 by the jaw pin 41. Thereby, the position of the adjustment metal fitting 32 and the screuge jaw 38 can be adjusted according to the distance between the Tongrel 6 and the lock lever 8.

Note that a tipping device similar to the above-described tipping device 1 is described in Patent Document 1, for example.
JP 2003-146213 A

  Conventionally, the rod 19 and the connecting rod 10 of the switch adjuster 9 are made of a forged product 44 (coarse shaped member) in which a substantially U-shaped jaw 43 is integrally formed at one end of a round bar 42 as shown in FIG. The rod 30 of the front rod 11 is manufactured from a forged product 47 (coarse material) in which a flat plate 46 is integrally formed at one end of a round bar 45 as shown in FIG. These rough shapes are completed by subjecting them to predetermined machining and surface treatment. In addition, as a rod-shaped component that can be used in the tipping device, for example, it is manufactured from a forged product 50 in which a cylinder 49 is integrally formed at one end of a round bar 48 as shown in FIG. As shown in FIG. 10D, there is one manufactured from a forged product 52 in which a jaw 51 is integrally formed at the other end of a round bar 48.

  As an example, a process of manufacturing the rod 19 of the switch adjuster 9 using the forged product 44 (coarse shape material) shown in FIG. 10A will be described with reference to FIG. In the forging process, first, (A) the round bar W is cut into an appropriate length, (B) the large-diameter portion W1 is forged at one end thereof, and (C) the jaw 43 is inserted from the large-diameter portion W1. Forged product 44 is obtained by forging. After that, in the machining process, (D) the surface of the threaded portion is cut (peeled off), (E) the threaded portion is rolled, and (F) the jaw 43 is cut and drilled to complete the finished product. obtain.

  Thus, when manufacturing a rod-shaped component used for a tipping device, it is necessary to forge a long rod-shaped member and integrally form a jaw, a flat plate, a cylinder, etc. There is a problem that automation is difficult, manual labor that requires skill is large, and productivity is very poor.

  On the other hand, as schematically shown in FIG. 11, the signal iron pipe 15 connects a plurality of iron pipes 53 by iron pipe joints 54, and a jaw 55 (forged product) and a round bar 56 (threaded part) are connected to a joint 57 at both ends thereof. It is manufactured by connecting with. The iron pipe joint 54 is screwed at both ends into the iron pipe 53 and connects them together. The joint 57 is screwed at one end with a jaw 55 or a round bar 56 and screwed at the other end into the iron pipe 53. Are connected to each other. A rivet 58 for preventing loosening is driven into the iron pipe joint 54 and the joint 57.

  As described above, the connecting portion of the iron pipe 53, the jaw 55, and the round bar 56 needs to be threaded, and further, since the rivet 58 for locking is driven, there is a problem that the manufacturing process is complicated and the productivity is poor. .

  Further, the arm bracket 17 of the switch adjuster 9 has a problem in productivity because the pin 24 is attached by caulking as described above.

  The present invention has been made in view of the above points, and the productivity and reliability of components for a switch device used as components such as a front rod, a connecting rod, a switch adjuster, and a signal iron pipe of the switch device. The purpose is to improve the performance.

In order to solve the above-mentioned problems, the invention according to claim 1 is a component used in a tipping device, wherein another member is joined to one member by friction welding.
According to a second aspect of the present invention, in the configuration of the first aspect, the one member is a rod-shaped rod member, and the other member is for connecting another component. It is a connecting member.
According to a third aspect of the present invention, in the configuration of the second aspect, the connecting member is a substantially U-shaped jaw member, a flat plate member, or a cylindrical member. Features.
According to a fourth aspect of the present invention, there is provided a method of manufacturing a part used in a tipping device, wherein another member is joined to one member by friction welding.
According to a fifth aspect of the present invention, there is provided a method for manufacturing a tipping device part according to the fourth aspect, wherein the one member is a rod-shaped rod member, and the other member connects another part. It is a connection member for doing.
According to a sixth aspect of the present invention, there is provided a method for manufacturing a part for a tipping device according to the fifth aspect, wherein the connecting member is a substantially U-shaped jaw member, a flat plate member, or a cylindrical member. It is characterized by being.

  According to the component for a tipping device and the manufacturing method thereof according to the present invention, one member and another member can be made of different materials, and the manufacturing process of the long component is easily mechanized and automated. Therefore, reliability and productivity can be improved by promoting mechanization and automation.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
With reference to FIG. 1, rod-shaped parts for the switch device used as the rod 19 and the connecting rod 10 of the switch adjuster 9 and the rod 30 of the front rod 11 in the switch device 1 shown in FIG. 5 will be described. .

  FIG. 1A schematically shows a part 59 to be used as the rod 19 of the switch adjuster 9 and the connecting rod 10. The part 59 includes a rod-shaped rod member 60 (one member) appropriately machined. A forged substantially U-shaped jaw member 61 (another member, connecting portion) is joined and integrated by friction welding. FIG. 1B schematically shows a part 62 used as the rod 30 of the front rod 11. The part 62 is composed of a rod member 60 and a forged flat plate member 63 (other members, connection Part) and are integrated by friction welding. FIG. 1C schematically shows a rod-shaped component 64 having a cylindrical portion at one end, and the component 64 includes a rod member 60 and a cylindrical cylindrical member 65 (another member, connection). Part) and are integrated by friction welding. FIG. 1D schematically shows a rod-shaped component 66 having a cylindrical portion at one end and a substantially U-shaped jaw at the other end. The component 66 includes a rod member 60 and both ends. The jaw member 61 and the cylindrical member 65 are joined and integrated by friction welding.

  Next, the manufacturing process of the component 59 used as the rod 19 of the switch adjuster 9 and the connecting can 10 will be described with reference to FIG. In the forging step, (A) the round bar W2 is cut into an appropriate length, and (B) the jaw member 61 is forged from the round bar W2. In the machining step, (C) the jaw member 61 is cut and drilled, (D) the rod member 60 is cut to an appropriate length, and (E) the surface of the threaded portion is cut (black skinned), (F) The threaded portion 67 is formed by rolling. Thereafter, in the friction welding process, (G) the rod part 60 and the jaw part 61 are friction welded to obtain a finished product.

  Similarly, the parts 62, 64, and 66 can be manufactured by separately forging and machining the rod member 60 and the flat plate member 63, the cylindrical member 65, or the jaw member 61, and then friction welding. .

  In this way, by integrating the rod member 60, the jaw member 61, the flat plate member 63, and the cylindrical member 65 by friction welding, the overall length of each forged product can be shortened, so that the forging process is mechanized. Automation is possible, and productivity and reliability can be improved by promoting mechanization and automation. Parts such as the rod member 60, the jaw member 61, and the flat plate member 63 can be made common, and by making the parts common, productivity can be improved and manufacturing cost can be reduced. Further, since friction welding between different metals is possible, the rod member 60, the jaw member 61, the flat plate member 63, and the cylindrical member 65 can be made of different metals, for example, a connection including a movable part such as the jaw member 61. The part is made of a highly wear-resistant material, and the rod part 60 can be made of an inexpensive material having the required strength and corrosion resistance. This ensures the reliability of the parts, increases the productivity, and reduces the manufacturing cost. It becomes possible to reduce. Furthermore, since the friction welding can adjust the direction (phase) of the joint portion, for example, as in the component 66 shown in FIG. 1D, a connecting portion having directionality at both ends of the rod member 60 and When the jaw member 61 and the cylindrical member 65 are arranged, these directions (phases) can be adjusted.

  Next, the component 70 used as the signal iron pipe 15 will be described with reference to FIG. As shown in FIG. 2, the component 70 frictionally presses a jaw member 61 and a jaw receiver 72 (another member, connecting member) that can be coupled to the jaw member 61 at both ends of the iron pipe 71, and both ends of the iron pipe 71. The jaw member 61 and the screw member 73 (other members, connecting members) are friction-welded to each other, and the jaw member 61 and the jaw receiver 72 are coupled together by a jaw pin 74. This eliminates the need for conventional threading and riveting of the connecting portion of the iron pipe, improves productivity, and reduces manufacturing costs.

  Next, the brace 75 of the switch adjuster according to the present embodiment will be described with reference to FIG. The arm metal 75 according to the present embodiment has the same structure as that of the conventional example shown in FIG. 7 except that the pin mounting structure is different. Similar parts are denoted by the same reference numerals, and only different parts will be described in detail.

  In the arm metal 75 according to the present embodiment, the pin hole 25 is omitted, and the pin 24 (other member) is joined to the arm metal body (one member) by friction welding. Thereby, the drilling of the pin hole 25 and the attachment by caulking are eliminated, and productivity and reliability can be improved.

It is the schematic which shows the components for switch devices which concern on one Embodiment of this invention. It is the schematic which shows the components for signal iron pipes which concern on one Embodiment of this invention. It is a side view of a brace of a switch adjuster concerning one embodiment of the present invention. It is explanatory drawing which shows the manufacturing process of the components shown to FIG. 1 (A). It is a top view of a turning device. FIG. 6 is a perspective view of a switch adjuster of the turning device shown in FIG. 5. It is the top view (A) and side view (B) of a switch adjuster shown in FIG. It is the front view (A) and top view (B) of the front rod of the turning device shown in FIG. FIG. 6 is a perspective view of a connecting can of the rolling device shown in FIG. 5. It is the schematic which shows the rough shaped material of the rod-shaped forge part used for the rolling apparatus shown in FIG. It is the schematic of the signal iron pipe of the switch apparatus shown in FIG. It is explanatory drawing which shows the manufacturing process of the rod of the switch adjuster shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Switching device, 59 components (component for rolling devices), 60 rod member (one member), 61 jaw member (other members, connection member)

Claims (6)

A component for use in a switch device, wherein the other member is joined to one member by friction welding. 2. The component for a tipping device according to claim 1, wherein the one member is a rod-shaped rod member, and the other member is a connecting member for connecting another component. The part for a switch device according to claim 2, wherein the connecting member is a substantially U-shaped jaw member, a flat plate member, or a cylindrical member. A method of manufacturing a component for use in a switch device, wherein the other member is joined to one member by friction welding. The said one member is a rod-shaped rod member, and the said other member is a connection member for connecting another component, The manufacturing method of the components for tipping devices of Claim 4 characterized by the above-mentioned. Method. 6. The method of manufacturing a part for a switch device according to claim 5, wherein the connecting member is a substantially U-shaped jaw member, a flat plate member, or a cylindrical member.