CN220739659U - Riser sawing cutter and sawing device - Google Patents

Abstract

The utility model relates to a riser sawing cutter and a sawing device, wherein the sawing cutter comprises a sawing machine, the structure of the sawing machine comprises a machine base, a driving part is arranged at the head part of the machine base, an output shaft of the sawing machine is connected with a circular saw blade, a connecting shaft is arranged at one side of the machine base, and the connecting shaft is parallel to the output shaft; the sawing machine is characterized by further comprising a placing part, wherein a fixed hinging position is arranged on the placing part and is used for hinging with the connecting shaft, so that the sawing machine can rotate between an initial position and a working position around the connecting shaft relative to the placing part, and a torsion spring is sleeved on the connecting shaft and used for providing restoring force, so that the sawing machine rotates from the working position to the initial position. The riser sawing device comprises a riser sawing cutter and a pressing mechanism, and is used for pressing a workpiece to facilitate subsequent sawing operation. The sawing cutter has long sawing stroke, and can avoid the risk that the sawing machine collides with a workpiece and overscut occurs. The safe, accurate and quick sawing of the dead head on the end face of the transmission shell can be realized.

Description

Riser sawing cutter and sawing device

Technical Field

The utility model relates to the technical field of sawing machines, in particular to a riser sawing cutter and a sawing device.

Background

Automotive transmission housings are one of the most important component protective structures for automobiles, and are typically integrally cast for component strength and cost. Because of the complex structure of the automobile transmission, the housing is relatively large, so that a certain number of large feeding heads are required to be arranged on the end face of the automobile transmission in order to ensure the molding of castings during casting. After the transmission shell is cast and molded, because the feeding heads are different in thickness and relatively independent, saw blade deflection and shaking easily occur due to uneven stress of the saw blade during sawing, and in order to ensure that the saw blade feeding speed is greatly limited due to the accuracy of sawing positions, the saw removal work of the feeding heads forms production bottlenecks. When the circular saw blade device is used for sawing, the deflection and the shaking of the saw blade caused by uneven stress can be eliminated, but the working radius, namely the sawing stroke, of the circular saw blade is too small to meet the sawing requirement of the transmission shell due to the material limitation of the circular saw blade.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a riser sawing cutter and a sawing device, and aims to solve the technical problem that the sawing requirements of a transmission shell cannot be met due to the fact that the sawing stroke of a circular saw blade is too small.

The technical scheme adopted by the utility model is as follows:

the application provides a riser sawing cutter, which comprises a sawing machine, wherein the structure of the riser sawing cutter comprises a machine base, the head part of the machine base is provided with a driving part, an output shaft of the machine base is connected with a circular saw blade, one side of the machine base is provided with a connecting shaft, and the connecting shaft is parallel to the output shaft; the sawing machine comprises a sawing machine body, and is characterized by further comprising a placing part, wherein a fixed hinging position is arranged on the placing part and is used for hinging with the connecting shaft, so that the sawing machine can rotate around the connecting shaft between an initial position and a working position relative to the placing part, a torsion spring is sleeved on the connecting shaft and used for providing restoring force, and the sawing machine can rotate from the working position to the initial position.

The further technical scheme is as follows:

the shell of the driving part is provided with a handle, and the handle is arranged along the radial direction of the circular saw blade.

The shell of the driving part is connected with a protective cover, and the protective cover is used for covering part of the circular saw blade.

The application also provides a riser sawing device, which comprises the riser sawing cutter and a pressing mechanism, wherein the structure of the pressing mechanism comprises a cylinder, a positioning part and a pressing part;

the positioning part is arranged on the cylinder body of the cylinder and used for penetrating through a bearing hole of the workpiece;

the top end of a piston rod of the air cylinder is provided with a mounting hole for detachably connecting a limiting rod, and the limiting rod is perpendicular to the piston rod;

the compressing part is provided with a through hole, the compressing part is used for penetrating through the piston rod, the size of the compressing part is larger than that of the positioning part, and the length of the limiting rod is larger than the inner diameter of the through hole.

The further technical scheme is as follows:

the top of the pressing part is provided with a handle, and the piston rod can be matched with the handle through the top surface of the piston rod, so that the handle is lapped on the top end of the piston rod.

The structure of placing the portion includes base portion and casing portion, the casing portion cover is established on the base portion, forms the work piece and places the chamber, just the casing portion with base portion sliding fit makes the work piece is placed the chamber and is sealed or open.

The base part is provided with a position sensing device for detecting the position of the shell part, and the position sensing device is electrically connected with a controller of the air cylinder.

And one side of the base part is provided with a connecting piece, and an upper mounting point and a lower mounting point are formed on the outer side of the base part to form the hinge position.

Be equipped with the dust cover on the base portion, the dust cover is fan-shaped, and the dust cover sets up on the working position, inside is formed with holds the cavity of saw blade, dust cover one side is formed with and is used for making the saw blade get into the opening of cavity.

An observation window is arranged on the shell part.

The beneficial effects of the utility model are as follows:

the sawing tool can move (rotate) relative to the placement part, and the sawing stroke is expanded. Through torsion spring's cooperation, avoid saw cut the inertial swing along saw cut direction of machine after saw cut, avoid saw cut the machine to collide with the work piece and take place the risk of cutting excessively. The riser is sawed by the circular saw blade, the feeding speed in the whole sawing process can be manually controlled, the sawing process is convenient and quick, the saw blade cannot jump, and the sawing surface is smooth and accurate. The sawing device is simple in structure, low in manufacturing cost and convenient to operate. The end face riser of the transmission housing can be safely, accurately and quickly sawed, the production bottleneck of products is eliminated, and the product yield is improved.

According to the method, the workpiece is sawed in the closed environment, so that the risk of splashing of waste is avoided, and waste collection is facilitated. Through setting up the dust cover on the saw cutting machine motion route, realize sawing the dual protection of piece and saw cutting spark, the security is fabulous.

The automatic control to hold-down mechanism cylinder is accomplished through induction system mode to accomplish the automatic fastening to the derailleur shell, it is efficient.

Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic view of an installation structure of a pressing mechanism in an embodiment of the present utility model in a state before pressing.

Fig. 3 is a schematic view of an installation structure of the pressing mechanism in the embodiment of the present utility model in a pressed state.

Fig. 4 is a schematic view of a state before sawing in a use process of the embodiment of the utility model.

Fig. 5 is a schematic view of sawing during use of the embodiment of the present utility model.

In the figure: 1. a connecting shaft; 2. a torsion spring; 3. a base; 4. a circular saw blade; 5. a protective cover; 6. a handle; 7. a dust cover; 8. a placement unit; 9. a compressing mechanism; 10. an observation window; 11. a position sensing device; 12. a mounting point; 13. a limiting plate; 14. a workpiece; 81. a base portion; 82. a housing portion; 83. a guide rail; 91. a piston rod; 92. a positioning part; 93. a limit rod; 94. a pressing part; 95. a handle.

Detailed Description

The following describes specific embodiments of the present utility model with reference to the drawings.

Example 1

Referring to fig. 1, the present embodiment provides a riser sawing tool, including a sawing machine, the structure of which includes a machine base 3, a driving part is provided at the head of the machine base 3, an output shaft thereof is connected with a circular saw blade 4, a connecting shaft 1 is provided at one side of the machine base 3, and the connecting shaft 1 is parallel to the output shaft; still including placing portion 8, be equipped with fixed articulated position on it for articulated with connecting axle 1, make saw cut the ability and rotate between initial position and the working position around connecting axle 1 for placing portion 8, the cover is equipped with torsion spring 2 on the connecting axle 1, torsion spring 2 is used for providing restoring force, makes saw cut the quick-witted rotation from the working position to initial position.

In the embodiment, the connecting shaft hinged with the placing part is arranged on one side of the stand, so that the stand is rotated, the sawing stroke of the circular saw blade 4 is expanded, and the sawing processing requirement on the transmission shell is met. The torsion spring 2 provides restoring force, and on the one hand makes things convenient for sawing machine to return to initial position from the working position, on the other hand prevents that the rising head from saw cutting the back of accomplishing, and round saw blade 4 is blocked the too little and direct striking rear portion and has not saw cut the rising head yet, prevents to saw cut the machine and receives inertial effect to continue to move to the work piece inboard, has effectively prevented to cut excessively.

Specifically, the housing of the drive section is provided with a handle 6, and the handle 6 is disposed radially along the circular saw blade 4. The housing can be rotated by the handle to move from the initial position to the working position.

Specifically, a protective cover 5 is connected to the housing of the driving part, and the protective cover 5 is used for covering a part of the circular saw blade 4. The protective cover is used for preventing aluminum scraps from splashing and preventing hands from being hurt during sawing.

Example 2

Referring to fig. 1, the present embodiment provides a riser sawing device, which includes the riser sawing tool as described in embodiment 1, and further includes a pressing mechanism 9 for pressing the workpiece to facilitate the subsequent sawing operation. Referring to fig. 2 and 3, the structure of the pressing mechanism 9 includes a cylinder, a positioning portion 92, and a pressing portion 94;

the positioning portion 92 is provided on the body of the cylinder for penetrating the bearing hole of the workpiece 14;

the top end of the piston rod 91 of the air cylinder is provided with a mounting hole for detachably connecting a limiting rod 93, and the limiting rod 93 is perpendicular to the piston rod 91. The stop lever 93 is fitted into the mounting hole when it is needed, and is pulled out when it is not needed.

The compressing portion 94 is provided with a through hole for passing through the piston rod 91, the size of the compressing portion 94 is larger than that of the positioning portion 92, and the length of the limiting rod 93 is larger than the inner diameter of the through hole.

The pressing mechanism of the embodiment is used for pressing the workpiece on the fixed plane. The using method comprises the following steps: the fixing plane is preset with an opening, and the positioning portion 92 may specifically be a ring shape, and extends from the opening, so that the workpiece 14 is positioned on the fixing plane through a bearing hole on the workpiece 14, and in this state, the positioning portion 92 extends into the workpiece 14 as shown in fig. 2. Then the piston rod 91 of the air cylinder moves down to the set position, the pressing part 94 is taken out and sleeved outside the piston rod 91, the pressing part 94 covers the positioning part 92 and presses the workpiece 14, the pressing part 94 is in a circular ring shape, the bottom surface of the pressing part is in contact with the surface of the workpiece 14, at the moment, the top of the piston rod 91 is slightly higher than the pressing part 94, the limiting rod 93 is inserted into the mounting hole of the piston rod 91, and the movement of the pressing part 94 can be avoided by utilizing the limiting rod 93 as shown in fig. 3.

Preferably, the top of the pressing part 94 is provided with a handle 95, the top end surface of the piston rod 91 is matched with the bottom end surface of the handle 95, and the pressing part 94 can be placed on the piston rod 91 in advance as shown in fig. 4, so that the pressing part 94 moves synchronously with the piston rod 91. The hold-down 94 may be removed from the piston rod 91 by a handle 95.

Referring to fig. 1, the structure of the placement section 8 includes a base section 81 and a housing section 82, the housing section 82 is covered on the base section 81 to form a work placement chamber, and the housing section 82 is slidably fitted with the base section 81 so that the work placement chamber is closed or opened. In this regard, it can be appreciated that the pressing mechanism of the present embodiment is configured to press the workpiece into the workpiece placement cavity, thereby facilitating subsequent sawing operations.

The base portion 81 is provided with a position sensing device 11 for detecting the position of the housing portion 82, and the position sensing device 11 is electrically connected to a controller of the cylinder.

A connector is provided on one side of the base portion 81, and upper and lower mounting points 12 are formed on the outer side thereof to constitute a hinge position.

The dust cover 7 is arranged on the base part 81, the dust cover 7 is fan-shaped, the dust cover 7 is arranged on the working position, a cavity for accommodating the circular saw blade 4 is formed inside the dust cover 7, and an opening for enabling the circular saw blade 4 to enter the cavity is formed on one side of the dust cover 7.

The base portion 81 is provided with a guide rail 83, the housing portion 82 is provided with a slider slidably engaged with the guide rail 83, and an end portion of the guide rail 83 is provided with a stopper 13 as shown in fig. 2. The stopper 13 prevents the housing from falling off.

Specifically, the base portion 81 includes a bottom plate and a vertical plate disposed on the bottom plate, and is made of a square tube welded frame to which a steel plate is welded. The guide rails 83 are respectively arranged on the outer side of the bottom plate and the upper side of the vertical plate, and the guide rails 83 at two positions are arranged in parallel. The connecting piece is a special-shaped iron casting, the fixing surface of the connecting piece is fixed on a frame on the side face of the vertical plate, two protruding lug structures are arranged at the other end of the connecting piece, the connecting piece is used as the mounting point 12, and the height of the connecting piece can be adjusted to adapt to sawing and removing of riser heads with different heights, so that the universality is good. The housing 82 is integrally formed by bending a sheet material and is integrally divided into three sections, the first section is perpendicular to the third section, and the second section is 45 degrees and is provided with a through hole. The edges of the first and third sections are provided with slide blocks for assembly with guide rails 83 on the upper side of the riser and the outer side of the floor, respectively. The sensor adapted to the position sensing device 11 is arranged outside the first section. The left side of the shell part is also provided with a protective curtain cloth which is a transparent plastic product. The second section is provided with a reserved through hole for installing the observation window 10.

Specifically, the dust cover 7 is welded into a circular arc C-shaped shell by a plate, and two equal-height lower upright posts are welded at the lower part of the dust cover for being installed on the bottom plate.

Specifically, the housing portion 82 slides to the left with respect to the base portion 81, so that the work placement chamber is opened as shown in fig. 4, and the housing portion 82 slides to the right with respect to the base portion 81, so that the work placement chamber is closed as shown in fig. 5.

The working flow of the riser sawing device of the embodiment is as follows:

when the housing 82 slides to the right, the position sensing device 11 receives the impact signal and then sends a signal to a cylinder controller (not shown) to control a gas diverter (not shown), so that the compressing end of the cylinder is ventilated, the piston rod 91 descends to drive the compressing device 94 to descend, and finally the compressing work of the workpiece 14 is completed. After confirming that the workpiece 14 is pressed through the observation window 10 on the housing portion 82, holding the handle 6 of the sawing machine, starting the sawing machine, moving the sawing machine along the dust cover 7 to the inside, and starting sawing, wherein the state is shown in fig. 5, and the whole sawing process can be observed through the observation window 10 during sawing. After the riser (the cylindrical structure distributed around the upper edge of the workpiece 14 in fig. 4) within the sawing radius range of the circular saw blade 4 is sawed in the sawing stroke of the sawing machine, the sawing machine is closed, the handle 6 is loosened, and the sawing machine can not continuously move towards the inner side of the workpiece under the inertia effect due to the torsion spring 2 of the sawing machine and the base part, so that the over-cutting is effectively prevented. After the sawing machine returns, the shell 82 is pulled to slide to the left, at this time, the position sensing device 11 receives the signal again, the gas diverter starts to ventilate to the lifting end of the cylinder, the piston rod 91 rises to drive the compactor 94 to rise, so that the direction of the workpiece 14 can be conveniently adjusted, and the working state at this time is shown in fig. 4. After the workpiece 14 is oriented, the upper housing portion 82 continues to be pulled. The sawing is repeated until the riser of the workpiece is completely sawed off.

Those of ordinary skill in the art will appreciate that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The riser sawing cutter comprises a sawing machine, and structurally comprises a machine base (3), wherein a driving part is arranged at the head of the machine base (3), and an output shaft of the machine base is connected with a circular saw blade (4), and the riser sawing cutter is characterized in that a connecting shaft (1) is arranged at one side of the machine base (3), and the connecting shaft (1) is parallel to the output shaft;

still including placing portion (8), be equipped with fixed articulated position on it, be used for with connecting axle (1) are articulated, make saw cut the ability for place portion (8) rotate around connecting axle (1) between initial position and work position, the cover is equipped with torsion spring (2) on connecting axle (1), torsion spring (2) are used for providing restoring force, make saw cut the machine follow work position rotates to initial position.

2. Riser sawing tool according to claim 1, wherein a handle (6) is provided on the housing of the drive, the handle (6) being arranged radially along the circular saw blade (4).

3. Riser sawing tool according to claim 1, characterized in that a protective cover (5) is connected to the housing of the drive, which protective cover (5) is intended to cover a part of the circular saw blade (4).

4. Riser sawing device, characterized by comprising a riser sawing tool according to one of the claims 1-3, further comprising a pressing mechanism (9), the structure of the pressing mechanism (9) comprising a cylinder, a positioning part (92) and a pressing part (94);

the positioning part (92) is arranged on the body of the air cylinder and used for penetrating through a bearing hole of the workpiece (14);

the top end of a piston rod (91) of the air cylinder is provided with a mounting hole for detachably connecting a limiting rod (93), and the limiting rod (93) is perpendicular to the piston rod (91);

the compressing part (94) is provided with a through hole, the compressing part (94) is used for penetrating the piston rod (91), the size of the compressing part (94) is larger than that of the positioning part (92), and the length of the limiting rod (93) is larger than the inner diameter of the through hole.

5. Riser sawing device according to claim 4, characterized in that the top of the pressing part (94) is provided with a handle (95), and the piston rod (91) can be fitted with the handle (95) through its top surface, so that the handle (95) is lapped on the top end of the piston rod (91).

6. Riser sawing device according to claim 4, wherein the structure of the placement part (8) comprises a base part (81) and a housing part (82), wherein the housing part (82) is covered on the base part (81) to form a workpiece placement cavity, and wherein the housing part (82) is in sliding fit with the base part (81) to enable the workpiece placement cavity to be closed or opened.

7. Riser sawing device according to claim 6, wherein the base part (81) is provided with a position sensing device (11) for detecting the position of the housing part (82), the position sensing device (11) being electrically connected to a controller of the cylinder.

8. Riser sawing device according to claim 6, wherein a connecting piece is provided on one side of the base part (81), which is formed with upper and lower mounting points (12) on the outside thereof, constituting the hinge position.

9. Riser sawing device according to claim 6, wherein the base part (81) is provided with a dust cover (7), the dust cover (7) is fan-shaped, the dust cover (7) is arranged on the working position, a cavity for accommodating the circular saw blade (4) is formed inside, and an opening for allowing the circular saw blade (4) to enter the cavity is formed on one side of the dust cover (7).

10. Riser sawing device according to claim 6, wherein the housing part (82) is provided with a viewing window (10).