WO2009030091A1

WO2009030091A1 - A die molding structure for surface hardening treatment of chain saw guide plate

Info

Publication number: WO2009030091A1
Application number: PCT/CN2007/070632
Authority: WO
Inventors: Li-Shua Chang; Yee-Hua Tsai; Yee-Fong Tsai
Original assignee: Li-Shua Chang; Yee-Hua Tsai; Yee-Fong Tsai
Priority date: 2007-09-05
Filing date: 2007-09-05
Publication date: 2009-03-12

Abstract

A die molding structure for surface hardening treatment of chain saw guide plate includes an entire metal material, which is bigger than chain saw guide plate, according to the profile and size of chain saw guide plate adding on the size of clearance, a groove can be machined accurately by the metal material, a cooling trough on the metal material is machined as close as possible to the side of groove, and except for the entrance and the outlet, the other invalid opens are sealed, the cooling trough is used to pass cooling water or low temperature gas to lower the high temperature of the die, thus, the melt or rupture of die can be avoided, and it is easy to mold accurately the die.

Description

Tool forming structure for surface hardening of chain saw guides

The invention provides a fixture forming structure for surface hardening treatment of a chain saw guide, in particular to a metal block fixture which is relatively easy to process and has high processing precision, and improves the service life of the fixture by using The jig is also quite easy to perform surface hardening treatment. Background technique

Referring to FIG. 1, the chain saw 10 basically includes a power portion 1 1 , a chain saw blade 1 2 , a chain saw guide 13 , wherein the power portion 11 has a casing 14 covered with a grip therebetween. 1 5 provides a grip. The chain saw guide 13 for the chain saw blade 1 2 is positive, due to the movement of the chain saw blade 1 2 and the chain saw guide 13 friction, so the hardness and toughness of the chain saw guide 13 must meet the requirements, so as not to cause the chain saw blade 1 2 friction and damage.

Referring to Figure 2, a plan view of a surface hardening process for a conventional chain saw guide, which mainly comprises a frame 20, a frame around a chain saw guide 1 3, a set of adjusting screws 2 1, a chain saw guide 1 3 is also provided with a copper tube 30. The copper tube 3 Q is also specially processed in advance, so that the round tubular copper tube 3 Q is formed into at least one flat copper tube 30, and the copper tube 3 0 can be combined with the chain saw. The guide plate 1 3 maintains a fixed gap of 2 3 distance (such as 0. 5mm), so the method is to use 0. 5mm standard block gauge 2 2 respectively between the chain saw guide 13 and the copper tube 30, and then the copper tube 30 The distance between the copper tube 30 and the chain saw guide 13 is maintained at a fixed gap of 3 mm.

The copper tube 3 Q conducts positive and negative electric power to generate high heat with high frequency, and the high heat causes the periphery of the chain saw guide 13 to improve hardness and toughness by heat treatment, and the inside of the copper tube 30 transports ice water for cooling. The copper tube keeps its temperature from being too high.

However, the above-mentioned conventional copper tube high-frequency fixtures still have the following defects:

First, the copper pipe needs to be processed into the required cross-section shape, which will take a considerable amount of time and money, but what is done is only the appearance of the copper pipe.

5毫米厚块块块,块规垫在铜管, The gap between the chain saw guide and the copper tube is maintained at a fixed value, for example, 0. 5mm gap requires a number of 0. 5mm thickness block gauge, block gauge pad in the copper tube Between the chain saw guide and the number of screws on the frame, the screw can be used to maintain a fixed gap. However, the action of the block gauge is quite troublesome because the position of the block gauge affects the gap. It takes a lot of time to adjust the screw, and the quality of each screw is difficult to control, and the arc part is also difficult to fix.

Therefore, in view of the problems existing in the above-mentioned conventional structure, how to develop an innovative structure that is more ideal and practical, the consumers are eagerly awaiting, and the relevant industry must strive to develop breakthrough goals and directions. In view of this, the creator has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation of the above objectives, the present invention has finally become practical. Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a jig forming structure for surface hardening of a chain saw guide to overcome the defects of the above conventional structure, to achieve surface hardening treatment, and to easily shape the jig, and to have an accurate shape.

Technical feature of solving the problem: a fixture forming structure for surface hardening of a chain saw guide is provided for use as a chain saw guide for the rail contact surface around the chain saw guide, so on the rail contact surface of the chain saw guide, Both need to be surface hardened. The hardness and toughness of the rail contact surface are improved, and the wear resistance is also improved. However, in the surface hardening process, the procedure for forming the guide rails is quite complicated, the precision control is difficult, and the cost is relatively increased. The invention mainly adopts a complete metal material larger than the chain saw guide plate, and the metal material can accurately process the shape of the groove chamber. The dimensional accuracy of the groove edge of the groove chamber is determined by the outer shape of the chain saw guide plate plus the gap size, and the metal material is The cooling groove is cut as close as possible to the groove of the tank chamber. The cooling tank is sealed and sealed except for the ineffective opening of the inlet and outlet. The cooling tank is used for ice water or low-temperature gas circulation to reduce the high temperature of the metal fixture heating, so that the fixture is free from the fixture. Dissolved, broken, so easy to shape, and the shape is accurate.

Compare the efficacy of the prior art:

1. The prior art requires the preparation of a copper tube first, and the shape of the copper tube is made into a special non-circular tube shape, which is troublesome and costly. The use of the complete metal cutting chamber and the cooling groove of the present invention allows easy control of precision, ease of manufacture, and cost reduction.

2. The prior art chain saw guide is difficult to maintain a fixed gap with the copper pipe, so it is necessary to use the number adjustment screw to fit the block gauge lock, and the fixed time is quite time consuming, and the fixed quality is difficult to maintain. The complete metal material of the present invention accurately incorporates the gap value during processing, so the gap is worthy of being fairly accurate when placed in the chain saw guide, and the high frequency processing of the front work can be completed quickly.

The above-mentioned objects, structures and features of the present invention will be described in detail with reference to the preferred embodiments of the present invention. . DRAWINGS

Figure 1 is a schematic view of a conventional chain saw.

Figure 2 is a plan view showing the surface hardening treatment of a conventional chain saw guide.

3 is a perspective view of a jig of an embodiment of the present invention.

4 is a perspective exploded view of a jig according to an embodiment of the present invention.

Figure 5 is a perspective view of a jig of another embodiment of the present invention. Figure 6 is a plan view showing the surface hardening treatment of a chain saw guide according to another embodiment of the present invention. detailed description

Referring to FIG. 3, the present invention provides a fixture forming structure for surface hardening of a chain saw guide, comprising: a metal material 40 larger than a chain saw guide, the metal material 40 is provided with a tank chamber 4 1, mainly The machining chamber is used to cut the groove chamber 4 1, so the accuracy is relatively easy to control. The groove edge 4 1 1 of the groove chamber 4 1 has a shape size of the chain saw guide 60 and the size of the required gap 70, and the gap 7 The distance of 0 is the allowable distance of the electrode discharge, and the allowable distance of the discharge is 0.5. Because the inner metal is made of 40, the processing of the groove 41 of the groove 41 can be controlled to a fairly accurate state, and the processing is also equivalent. easily. a cooling tank, the metal material 40 is cut as close as possible to the groove side 4 1 1 of the tank chamber 4 1 , and the cooling tank is sealed except for the ineffective opening position of the inlet and the outlet, and the cooling tank is used for ice water or low-temperature gas circulation. In order to reduce the high temperature of the heating of the fixture 80 made of metal material 40, the fixture 80 is free from dissolution and breakage, so that the fixture 80 is easy to form and the shape is precise.

Referring to FIG. 3 and FIG. 4, the cooling groove of the metal material 40 may be a cutting groove 42 on the metal material 40, and the groove 42 is cut as close as possible to the groove edge 4 1 of the groove chamber 4 1 . The groove 4 2 is formed on a surface of the metal material 40, and the groove 4 2 has an inlet 4 2 1 and an outlet 4 2 2 , and the groove 4 2 is formed on the surface of the metal material 40. The invalid opening 4 2 3 , the invalid opening 4 2 3 is covered by the sealing structure metal plate 50 which is the same as the characteristic of the metal material 40, and the metal plate 50 is sealed in the metal material 40 groove 4 by means of splicing. 2 Ineffective opening 4 2 3, the groove 4 2 is formed into a cooling groove having an inlet and an outlet.

Referring to FIG. 5, the cooling groove of the metal material 40 can be a long hole 43 formed by drilling a metal material, and each long hole 4 3 is straight, and the long hole 4 3 is electrically connected. Each of the long holes 4 3 is disposed as close as possible to the groove edge 4 1 1 of the groove chamber 4 1 , and among all the long holes 4 3 , only one inlet 4 3 1 and one outlet 4 3 2 are left, and the remaining invalid openings 4 3 3 will block the block, according to the formation of a cooling tank with inlet and outlet.

The above-mentioned inlet and outlet provide ice water or low-temperature gas in and out to reduce the high temperature of the metal fixture heating, and the fixture is protected from melting and breaking.

Referring to FIG. 6, the above-mentioned jig is formed by cutting the shape of the chain saw guide 60 and the distance of the gap 70 by the complete metal material 40 to form the groove chamber 4 1, so that the size of the groove chamber 4 1 is quite accurate. When the chain saw guide 60 is placed in the slot chamber 4 1 , the gap between the chain saw guide 60 and the jig 80 is kept consistent, and the front operation of the chain saw guide 60 can be quite fast.

The metal material 40 of the jig can be energized for high frequency operation.

The improvement of the efficacy of the present invention is as follows:

1. In the invention, the gap value has been added in the manufacture of the jig, so that in the subsequent high-frequency preparation and fixation process, the fixing can be performed relatively quickly and the gap is maintained. 2. The jig of the present invention is relatively easy to manufacture, and also saves the subsequent adjustment of the time of fixing the chain saw guide.

The present invention has been described in detail with reference to the preferred embodiments of the present invention. However, those skilled in the art can change and modify the present invention without departing from the spirit and scope of the invention. Changes and modifications are intended to be included within the scope of the invention as defined by the scope of the invention.

Claims

Claim

A fixture forming structure for surface hardening of a chain saw guide, comprising: a metal material larger than a chain saw guide, the metal material is provided with a groove chamber, and the groove side has a groove shape size of a chain The shape and size of the saw guide plate plus the size of the required gap, the gap size is the allowable distance of the electrode discharge; a cooling groove, the cooling groove is disposed as close as possible to the groove side of the groove chamber, and the cooling groove only has one inlet and one outlet, and the rest is invalid. The openings are sealed in a sealed structure.

The jig forming structure for surface hardening of a chain saw guide according to claim 1, wherein the cooling groove is provided with a groove at a position close to a groove of the groove of the metal material, and an inlet is left in the groove. After an exit, the ineffective opening facing the surface of the metal material is covered by a metal plate of a sealed structure, and the joint is fixed by splicing.

The jig forming structure for surface hardening of a chain saw guide according to claim 1, wherein the cooling groove is a plurality of long holes drilled, each long hole is straight, and the long holes are evenly guided. Pass, each long hole is placed as close as possible to the groove side of the trough chamber, so that the trough edge of the trough chamber has an elongated hole close to each other, and among all the long holes, only one inlet and one outlet are left, and the rest Invalid openings are sealed.

The jig forming structure for surface hardening of a chain saw guide according to claim 1, wherein the inlet and the outlet of the metal material are supplied with ice water or low-temperature gas.

A jig molding structure for surface hardening of a chain saw guide according to claim 1, wherein the metal material is energizable for high frequency operation.

5毫米。 The electrode discharge allowable distance is 0. 5mm.