CN101612743B - Saw blade swing limiting device for wire saw machine - Google Patents

Abstract

The invention relates to a saw blade swing limiting device of a jigsaw machine, which is used for locking and connecting a saw blade, the jigsaw machine also comprises a machine base, a connecting rod unit and a driving unit for driving the connecting rod unit to move in a reciprocating way, the saw blade swing limiting device comprises: a swing arm having a pivot portion pivotally connected to the base, a connecting portion provided at a side of the pivot portion, and a swinging portion provided at the side of the pivot portion and the connecting portion, the connecting portion being connected to a distal end portion of the link unit, the swinging portion having a joint portion; a saw blade holder having a pivot portion corresponding to the engagement portion and a locking portion provided on one side of the pivot portion; and a flexible connecting piece, which has a first end pivoted on the joint part of the swing arm and a second end pivoted on the pivot part, and the second end is bent relative to the first end. The saw blade clamping seat is pivoted on the swing arm through the flexible connecting piece in a single point, when the swing arm is driven by the connecting rod unit to swing, the swing amplitude of the saw blade clamping seat and the saw blade can be reduced, the saw blade can be prevented from being broken, and the saw cutting stability can be ensured.

Description

Saw blade swing limiting device for wire saw machine

technical field

The invention relates to a wire saw machine, in particular to a saw blade swing limiting device for a wire saw machine which can avoid the saw blade from being broken by connecting the saw blade at a single point and can ensure sawing stability.

Background technique

Please refer to FIG. 1 , which is a schematic diagram of the combined structure of the transmission device of an existing wire saw machine. An existing transmission device for a wire saw machine, such as U.S. Patent No. 6,393,957 B1, includes an inverted U-shaped connecting rod unit 1, and a drive unit 2 that drives the connecting rod unit 1 to move forward and backward. , two swing arms 3 connected to the link unit 1 , two saw blade clamping seats 4 pivotally connected to the ends of the swing arms 3 , and a saw blade 5 locked between the saw blade clamping seats 4 . The connecting rod unit 1 is composed of an upper rod 101, a lower rod 102 and a connecting rod 103 pivotally connected between the upper and lower rods 101, 102. The middle of the connecting rod 103 is pivotally connected on a machine base (not shown), and each of the swing arms 3 has a pivot joint 301 pivotally connected to the machine base, when the link unit 1 is driven by the drive unit 2, the upper and lower rods When 101 and 102 move back and forth forward and backward, the swing arm 3 swings with the pivot joint 301 as the pivot center, and drives the saw blade 5 to produce longitudinal reciprocating sawing action.

Although the transmission device of the above-mentioned wire saw machine can achieve the expected operation purpose, because the saw blade 5 produces longitudinal reciprocating sawing action, it will be affected by the swing arm 3 and swing back and forth (such as solid line and imaginary line) As shown), such a swing is easy to cause shaking, and the saw blade 5 is easily broken, and the vibration force of the whole machine table is also relatively large, which will affect the stability of the sawing work.

This shows that above-mentioned existing wire saw machine obviously still has inconvenience and defect in structure and use, and urgently needs to be further improved. In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and the general products do not have a suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. urgent problem to be solved. Therefore, how to create a saw blade swing limiting device for a wire saw machine with a new structure is one of the current important research and development topics, and has also become a goal that the industry needs to improve.

In view of the defects of the above-mentioned existing wire saw machines, the inventor actively researches and innovates based on his rich practical experience and professional knowledge in the design and manufacture of such products for many years, and cooperates with the application of academic theories, in order to create a new type of wire saw machine. The saw blade swing limiting device of the wire saw machine can improve the general existing wire saw machine and make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the present invention with practical value is finally created.

Contents of the invention

The purpose of the present invention is to overcome the defects existing in the existing wire saw machine, and provide a saw blade swing limiting device of a new type of wire saw machine. The technical problem to be solved is to connect the saw blade with a single point, and avoid The saw blade is broken, and it can ensure the stability of sawing, which is very suitable for practical use.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to the present invention, a saw blade swing limiting device for a wire saw machine is used for locking a piece of saw blade, and the wire saw machine also includes a machine base, a connecting rod unit installed on the machine base, and a drive unit to drive the connecting rod. The driving unit for the backward movement of the rod unit, wherein the saw blade swing limiting device includes: a swing arm with a pivot joint connected to the machine base, a connecting part disposed on one side of the pivot joint and a joint disposed on the pivot joint. A pivoting part and a swinging part on one side of the connecting part, the connecting part is connected with the end part of the link unit, the swinging part has a joint part; a saw blade clamping seat has a pivot part corresponding to the joint part and a locking portion disposed on one side of the pivot portion; and a flexible link having a first end pivotally connected to the joint portion of the swing arm and a second end pivotally connected to the pivot portion , the second end bends relative to the first end.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

According to a preferred embodiment of the present utility model, the aforementioned saw blade swing limiting device for a wire saw machine, wherein the flexible link is a chain.

According to a preferred embodiment of the present utility model, the saw blade swing limiting device of the aforementioned wire saw machine, wherein the locking part of the saw blade clamping seat has a lock hole and a protrusion on one side of the lock hole. The saw blade swing limiting device also has a locking unit, the locking unit has a pressure block that presses the saw blade on the stop position and a lock is set in the lock hole and eccentrically pulls the pressure block against An operating element that approaches or moves away from the stop position.

According to a preferred embodiment of the present invention, the saw blade swing limiting device of the aforementioned wire saw machine also has an adjustment unit, the adjustment unit has a support frame installed on the machine base, a support frame connected to the support The shaft at the bottom of the frame and through the pivot joint and the machine base, an adjustment knob screwed on the support frame, two guide blocks sleeved on the shaft, and two sleeves sleeved on the shaft The positioning block on and inside the guide block.

According to a preferred embodiment of the present utility model, the aforementioned saw blade swing limiting device for a wire saw machine, wherein the swing portion of the swing arm also has a curved surface against which the flexible connecting member is abutted in the longitudinal direction.

According to a preferred embodiment of the present invention, the saw blade swing limiting device of the aforementioned wire saw machine, wherein the swing part of the swing arm also has a sliding part, and the saw blade clamping seat also has a guide slide part, the The sliding guide part is pivotally connected to the sliding part of the swing arm.

According to a preferred embodiment of the present invention, the saw blade swing limiting device of the aforementioned wire saw machine, wherein the sliding part of the swing arm is an oblong hole, the saw blade clamping seat has a body, a pair of pivotally connected As for the guide plate between the main body and the sliding part, the guide slide part is arranged on the guide plate and is in the shape of a pin rod, and the circular diameter of the guide slide part is smaller than the length of the slide part.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. It can be seen from the above that in order to achieve the above purpose, the saw blade swing limiting device of the wire saw machine according to the present invention is for locking a piece of saw blade, and the wire saw machine also includes a machine base and a connecting rod mounted on the machine base. unit and a drive unit that drives the connecting rod unit to move back and forth. The saw blade swing limiting device has a swing arm pivotally connected to the base, a saw blade clamping seat corresponding to the swing arm and a link between the swing arm and the Flexible link between saw blade holders. The swing arm has a pivoting part pivotally connected to the machine base, a connecting part arranged on one side of the pivoting part, and a swing part arranged on one side of the pivoting part and the connecting part, the connecting part and the connecting part The link unit ends are connected, and the swing part has a joint. The saw blade clamping seat has a pivot portion corresponding to the joint portion and a locking portion arranged on one side of the pivot portion. The flexible link has a first end that is pivotally connected to the joint portion of the swing arm and a second end that is pivotally connected to the pivot of the saw blade clamping seat, and the second end is opposite to the first end. One end is deflected.

With the above technical solution, the saw blade swing limiting device of the wire saw machine of the present invention has at least the following advantages and beneficial effects: the saw blade clamping seat of the present invention is pivotally connected to the swing arm at a single point by the flexible link, when the When the swing arm is driven by the link unit to swing, the front and rear swing range of the saw blade clamping seat and the saw blade can be reduced, which can prevent the saw blade from being broken and maintain the stability of sawing.

To sum up, the present invention relates to a saw blade swing limiting device for a wire saw machine, which has a swing arm pivotally connected to a machine base, a saw blade clamping seat corresponding to the swing arm, and a saw blade clamping seat connected to the swing arm. A flexible link between the arm and the saw blade clamping seat and a locking unit for locking a saw blade on the saw blade clamping seat. A connecting portion of the swing arm is pivotally connected to an end portion of a link unit. In the present invention, the saw blade clamping seat is pivotally connected to the swing arm at a single point by using the flexible link. When the swing arm is driven by the link unit to swing, the saw blade clamping seat and the saw blade can swing back and forth The range is reduced, the saw blade can be avoided from breaking, and the stability of sawing can be ensured, which is very suitable for practical use. The present invention has the above-mentioned many advantages and practical value, it has great improvement no matter in product structure or function, has remarkable progress in technology, and has produced easy-to-use and practical effect, and compared with existing wire saw machine The utility model has enhanced outstanding functions, and thus is more suitable for practical use, and is a novel, progressive and practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic diagram of a combined structure of a transmission device of a conventional wire saw machine.

Fig. 2 is an external perspective view of a preferred embodiment of the present invention.

Fig. 3 is a sectional view of the assembled structure of the above-mentioned preferred embodiment of the present invention.

Fig. 4 is an exploded perspective view of the preferred embodiment of the present invention.

Fig. 5 is a partially enlarged schematic view of the above-mentioned preferred embodiment of the present invention, illustrating that a swing arm is driven to swing downward by a link unit.

FIG. 6 is a schematic diagram of the operation of the above-mentioned preferred embodiment of the present invention, illustrating that the swing arm is driven by the link unit to swing upwards.

FIG. 7 is a schematic cross-sectional view along section line VII-VII in FIG. 6 .

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, Features and their functions are described in detail below.

The aforementioned and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description of preferred embodiments with reference to the drawings. For convenience of description, in the following embodiments, the same elements are denoted by the same numbers.

Please refer to FIG. 2 and FIG. 3. FIG. 2 is a perspective view of the appearance of a preferred embodiment of the present invention, and FIG. 3 is a cross-sectional view of the combined structure of the above preferred embodiment of the present invention. The saw blade swing limiting device 200 of the wire saw machine 100 in the preferred embodiment of the present invention is for locking a piece of saw blade 300, and the wire saw machine 100 also includes a machine base 110, a connecting rod mounted on the machine base 110 Rod unit 120, a driving unit 130 that drives the connecting rod unit 120 to move forward and a workbench 140 installed on the base 110, wherein:

The base 110 has an upper horizontal tube 111 and a lower horizontal tube 112 arranged below the upper horizontal tube 111;

The connecting rod unit 120 has an upper rod 121 passing through the upper horizontal tube 111 , a lower rod 122 passing through the lower horizontal tube 112 and a pivotal connection between the upper and lower rods 121 The connecting rod 123 between , 122, the upper rod 121, the lower rod 122 and the connecting rod 123 are pivotally connected in an inverted U shape, and the middle of the connecting rod 123 is pivotally connected to the base 110;

The driving unit 130 drives the link unit 120 to move back and forth relative to the base 110 in an eccentric manner.

Please refer to FIG. 4 again, which is an exploded perspective view of the preferred embodiment of the present invention. The corresponding two ends of the upper and lower rods 121 and 122 of the above-mentioned link unit 120 are connected with a saw blade swing limiting device 200 respectively, and the saw blade swing limiting device 200 has a swing arm 10 pivotally connected to the machine base 110 , a saw blade clamping seat 20 corresponding to the swing arm 10, a flexible link 30 connected between the swing arm 10 and the saw blade clamping seat 20, and a saw blade 300 locked on the saw blade clamping seat 20 The locking unit 40 and an adjusting unit 50 installed on the base 110.

The above-mentioned swing arm 10 is generally in the shape of an elongated plate, and has a pivotal portion 11 located in the middle and pivotally connected to the base 110, a connecting portion 12 disposed on one side of the pivotal portion 11, and a set On the side of the pivot joint 11 and the connecting portion 12, the connecting portion 12 is pivotally connected to the ends of the upper and lower rods 121, 122. The swinging portion 13 is protrudingly arranged on the upper and lower transverse The outside of the tubes 111, 112 has a joint part 131, a sliding part 132 arranged on one side of the joint part 131 and in the shape of an oblong hole, and a curved surface 133 arranged on the side edge. The extending direction of the sliding part 132 Corresponds to the long direction of the swing arm 10 .

The saw blade clamping seat 20 mentioned above has a body 201 and a pair of guide plates 202 pivotally connected between the body 201 and the sliding part 132 ;

The body 201 has a pivot ear 203, a pivot portion 22 disposed on one side of the pivot ear 203 and corresponding to the joint portion 131, and a locking portion 23 disposed on one side of the pivot portion 22;

The guide plate 202 has a pivot 204 pivotally connected to the pivot ear 203 and a pin-shaped guide sliding portion 21 passing through the sliding portion 132 . The diameter of the sliding part 21 is smaller than the length of the sliding part 132, and is slidably pivoted in the sliding part 132;

The locking portion 23 has a locking hole 231 and a bump-shaped blocking portion 232 protruding from one side of the locking hole 231 .

The above-mentioned flexible link 30, in this embodiment, the flexible link 30 is a chain, and has a first end 31 pivotally connected to the joint portion 131, a second end 31 pivotally connected to the pivot portion 22. The end portion 32 and a middle section 33 abut against the curved surface 133 , the second end portion 32 can be flexed relative to the first end portion 31 .

The above-mentioned locking unit 40 is to lock the saw blade 300 on the saw blade clamping seat 20, and has a pressing block 41 for pressing the saw blade 300 on the stop portion 232 and a lock set in the lock hole 231 and The pressing block 41 is eccentrically driven to approach or move away from the operating member 42 relative to the stop portion 232 .

Please refer to FIG. 7 , which is a schematic cross-sectional view along line VII-VII in FIG. 6 . The adjustment unit 50 mentioned above has an inverted U-shaped support frame 51 mounted on the upper horizontal tube 111 of the base 110, a pivot joint 11 connected to the bottom of the support frame 51 and passing through the upper swing arm 10 and The shaft 52 of the upper horizontal tube 111, an adjustment knob 53 screwed on the support frame 51 and resisting the upper horizontal tube 111, two guide blocks 54 sleeved on the shaft 52 and two sleeves A positioning block 55 disposed on the shaft 52 and located inside the guide block 54 . The guide block 54 drives the shaft 52 and the swing arm 10 to slide up and down along the upper horizontal tube 111, the positioning block 55 limits the axial positioning of the swing arm 10, and the saw blade can be adjusted by operating the adjustment knob 53 300 tension.

Please refer to FIG. 2 , FIG. 3 and FIG. 5 again. FIG. 5 is a partially enlarged schematic view of the above-mentioned preferred embodiment of the present invention, illustrating that a swing arm swings downwards driven by a link unit. The ends of the upper and lower rods 121, 122 of the link unit 120 are pivotally connected to the connecting portion 12 of the swing arm 10, when the drive unit 130 is activated, the drive unit 130 drives the link unit 120 in an eccentric manner. At the same time, the upper rod 121 and the lower rod 122 are moved back and forth in opposite directions, and the swing part 13 of the swing arm 10 is moved upwards or simultaneously with the pivoting part 11 as the pivot center. swing down. As shown in Figure 5, when the swing part 13 swings downward, the flexible link 30, the saw blade clamping seat 20 and the saw blade 300 move downward.

Please refer to FIG. 6 , which is a schematic diagram of the operation of the above-mentioned preferred embodiment of the present invention, illustrating that the swing arm is driven by the link unit to swing upwards. When the swinging part 13 swings upwards, the joint part 131 will affect the flexible connecting part 30 , and the flexible connecting part 30 will also affect the saw blade clamping seat 20 and the saw blade 300 to move upward. And during the swinging operation of the swing arm 10, the middle section 33 of the flexible connecting member 30 is used to abut against the curved surface 133 with part or most of its length, so that the flexible connecting member 30 will not be offset. .

Moreover, the flexible connection 30 is pivotally connected to the saw blade clamping seat 20 in a single-point manner, and the slide guide part 21 is slidably inserted in the sliding part 132 to define the flexible connection. When the member 30 and the saw blade clamping seat 20 or the flexible connecting member 30 are loosened relative to the swing arm 10, because the guide plate 202 utilizes the sliding part 21 to generate a pivotal relationship with the sliding part 132, it can avoid The saw blade clamping seat 20 produces a large deflection.

In addition, the sliding part 21 of the saw blade clamping seat 20 is penetrated in the sliding part 132, so that in addition to the connection between the saw blade clamping seat 20 and the swing arm 10 by using the flexible link 30, a link can be added. point, in order to prevent the saw blade 300 from being broken, the saw blade 300 will not bounce off to the outside and hurt the operator, which is very suitable for practical use.

It is worth mentioning that the flexible link 30 can also be a steel cable (not shown), and can achieve the same purpose and effect.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still belong to the scope of the technical solution of the present invention.

Claims (7)

1. A saw blade swing limiting device for a wire saw machine, which is used to lock a piece of saw blade, and the wire saw machine also includes a machine base, a connecting rod unit installed on the machine base, and a drive unit to drive the connecting rod The drive unit for reciprocal movement is characterized in that the saw blade swing limiting device includes: A swing arm has a pivoting part pivotally connected to the machine base, a connecting part arranged on one side of the pivoting part and a swing part arranged on one side of the pivoting part and the connecting part, the connecting part connected with the end portion of the link unit, the swing portion has a joint portion; A saw blade clamping seat has a pivot portion corresponding to the joint portion and a locking portion arranged on one side of the pivot portion; and A flexible link has a first end pivotally connected to the joint portion of the swing arm and a second end pivotally connected to the pivot portion, the second end is formed relative to the first end flex. 2. The saw blade swing limiting device of a wire saw machine as claimed in claim 1, wherein said flexible link is a chain. 3. The saw blade swing limiting device for a wire saw machine as claimed in claim 1, wherein the locking part of the saw blade clamping seat has a lock hole and a bump-shaped one side of the lock hole. The saw blade swing limiting device also has a locking unit, the locking unit has a pressure block that presses the saw blade on the stop position and a lock is arranged in the lock hole and eccentrically pulls the pressure block relative to the stop position. The stop position approaches or moves away from the operating member. 4. The saw blade swing limiting device for a wire saw machine according to claim 1, further comprising an adjustment unit, the adjustment unit has a support frame mounted on the machine base, and a support frame connected to the support frame The shaft at the bottom and through the pivot joint and the machine base, an adjustment knob screwed on the support frame, two guide blocks sleeved on the shaft, and two guide blocks sleeved on the shaft And the positioning block located inside the guide block. 5. The saw blade swing limiting device for a wire saw machine as claimed in claim 1, wherein the swing portion of the swing arm further has a curved surface for the flexible link to abut against in the long direction. 6. The saw blade swing limiting device of a wire saw machine according to claim 1, wherein the swing part of the swing arm also has a sliding part, and the saw blade clamping seat also has a guide slide part, the guide The sliding part is pivotally connected to the sliding part of the swing arm. 7. The saw blade swing limiting device of a wire saw machine according to claim 6, wherein the sliding part of the swing arm is an oblong hole, the saw blade clamping seat has a body, and a pair of pivotally connected to the body As for the guide plate between the sliding part, the guide slide part is arranged on the guide plate and is in the shape of a pin rod, and the circular diameter of the guide slide part is smaller than the length of the slide part.

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