Guiding device of sawing machine

Abstract

The utility model relates to the technical field of sawing machines, and discloses a guiding device of a sawing machine, which comprises a machine frame and a working table arranged on the machine frame, two sawing wheels are rotatably connected in the machine frame, the two sawing wheels are arranged up and down, a saw blade is sleeved on the two sawing wheels, and the working table is arranged on the machine frame. A guide assembly for controlling the direction of the saw belt is arranged on the rack, the guide assembly comprises a guide arm which is in sliding connection with the rack, a guide head is arranged at the bottom of the guide arm, and a lifting assembly for controlling the height of the guide arm is arranged in the rack. The height of the guide arm can be adjusted, and the effect of improving cutting precision and stability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sawing machines, and particularly relates to a guiding device for a sawing machine. Background Art

[0002] A band sawing machine tensions an endless saw band on two saw wheels and drives the saw band by the saw wheels for cutting. Band sawing machines mainly have two types: vertical and horizontal. The saw frame of the vertical band sawing machine is vertically arranged, and the workpiece moves during cutting to cut the curve profiles of sheet materials and formed parts. The saw band can also be replaced with a file chain or a sand belt for filing or grinding.

[0003] Chinese Patent with publication number CN103521838A discloses a sawing device for vertical cutting, specifically a vertical sawing machine, which includes a base, a machine body, and a saw frame. Travel wheels are fixedly arranged under the base, and an integral lifting oil cylinder is arranged on the base; a workpiece clamping device is arranged on the upper part of the machine body. The machine body is arranged on a second plate, the second plate is arranged on the upper part of the base, a first plate is arranged on the upper part of the second plate, the saw frame is arranged on the first plate, a first plate front-back moving device is arranged between the first plate and the second plate, and a second plate left-right moving device is arranged between the second plate and the base; a driving wheel and a driven wheel are fixedly arranged on the saw frame, and a saw blade is wound around the driving wheel and the driven wheel.

[0004] In the above device, the position of the guiding block for controlling the angle of the saw blade is fixed. When cutting a thinner workpiece, due to the excessive length of the saw blade between the guiding device and the workpiece, the saw blade will vibrate, affecting the cutting accuracy and stability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a guiding device for a sawing machine, which can adjust the height of the guiding arm and has the effect of improving the cutting accuracy and stability.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: A guiding device for a sawing machine includes a frame and a workbench arranged on the frame. A saw wheel is rotatably connected inside the frame. There are two saw wheels, and the two saw wheels are arranged vertically. A saw blade is sleeved on the two saw wheels. A guiding component for controlling the direction of the saw band is arranged on the frame. The guiding component includes a guiding arm slidably connected to the frame. A guiding head is arranged at the bottom of the guiding arm. A lifting component for controlling the height of the guiding arm is arranged inside the frame.

[0007] By adopting the above technical solutions, the height of the guiding arm is changed through the lifting component, so that the length of the saw blade between the guiding arm and the workpiece can be adjusted according to the thickness of the cut workpiece, preventing the saw blade from vibrating due to the excessive length of the saw blade between the guiding arm and the workpiece during sawing, effectively reducing the possibility of saw blade breakage, and effectively improving the processing quality.

[0008] A further setting of the present utility model is that: two guiding blocks are arranged on the guiding head in a left - right arrangement, and the saw blade is located between the two guiding blocks.

[0009] By adopting the above - mentioned technical solution, the saw blade is arranged between the two guiding blocks, which can change the installation angle of the saw blade, so that the saw blade always maintains a perpendicular state with the workpiece to be cut, improving the cutting efficiency.

[0010] A further setting of the present utility model is that: guiding wheels are further arranged on the guiding head. There are two guiding wheels, and the two guiding wheels are arranged horizontally. The saw blade is located between the two guiding wheels, and the guiding wheels are located above the guiding blocks.

[0011] By adopting the above - mentioned technical solution, the design of the guiding wheels further ensures that when the saw blade contacts the workpiece to be cut, it can maintain a perpendicular state.

[0012] A further setting of the present utility model is that: the lifting assembly includes a rack arranged on the guiding arm. A gear is rotatably connected in the machine frame, and the gear meshes with the rack. A rotating rod is fixedly connected to the center of the gear, and a worm gear is fixedly connected to the rotating rod. A worm is rotatably connected to the machine frame, and the worm meshes with the worm gear. A handwheel is fixedly connected to the end of the worm.

[0013] By adopting the above - mentioned technical solution, rotating the handwheel controls the rotation of the worm, which drives the rotation of the worm gear, and further controls the gear to drive the rack to move, thereby controlling the height of the guiding arm in the vertical direction, realizing the adjustment of the position of the guiding arm in the vertical direction, ensuring that the saw blade between the guiding arm and the cutting workpiece always maintains an appropriate length, preventing the saw blade from shaking; at the same time, the design of the worm gear can realize the self - locking of the position of the guiding arm, thus fixing the current position of the guiding arm.

[0014] A further setting of the present utility model is that: a limiting groove is slidably connected in the machine frame. A pressing wheel is rotatably connected in the limiting groove. The limiting groove is located on one side of the upper saw wheel. The saw blade is located between the pressing wheel and the saw wheel, and the saw wheel can be embedded in the limiting groove.

[0015] By adopting the above - mentioned technical solution, the design of the pressing wheel and the limiting groove can press the saw blade on the saw wheel, so that during the cutting process, the direction of the saw blade can be restricted, avoiding the saw blade from shifting during work and improving the processing quality.

[0016] A further setting of the present utility model is that: a control assembly for controlling the limiting groove to approach or move away from the saw wheel is arranged on the machine frame. The control assembly includes a screw rod threadedly connected to the machine frame, and one end of the screw rod is rotatably connected to the limiting groove.

[0017] By adopting the above technical solution, rotating the screw rod can control the limiting groove to approach or move away from the saw wheel, thereby facilitating the replacement of the saw wheel.

[0018] A further setting of the present utility model is that: one end of the screw rod away from the limiting groove is fixedly connected with a rotating handle.

[0019] By adopting the above technical solution, the rotating handle can facilitate the rotation of the screw rod.

[0020] A further setting of the present utility model is that: the guiding block is made of cemented carbide.

[0021] By adopting the above technical solution, the service life of the guiding block can be improved.

[0022] A further setting of the present utility model is that: holes for the saw blade to pass through are formed on the workbench.

[0023] The beneficial effects of the present utility model are:

[0024] 1. Through the design of the rack, gear, worm gear, and worm in the present utility model, the movement of the guiding arm in the vertical direction is controlled, so that the length of the saw blade between the guiding arm and the workpiece can be adjusted according to the thickness of the workpiece to be cut, reducing jitter, improving the cutting accuracy and stability of the sawing machine, and thus improving work efficiency and product quality.

[0025] 2. The present utility model designs a limiting groove and a pressing wheel, which can limit the direction of the saw blade and prevent the saw blade from shifting during work, thereby improving the processing quality.

[0026] 3. The guiding block and guiding wheel are arranged on the guiding arm in the present utility model, realizing double guiding of the saw blade, effectively ensuring the cutting angle of the saw blade, and improving the cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic structural diagram of the present utility model.

[0029] Figure 2 It is a schematic structural diagram of the present utility model.

[0030] Figure 3 It is Figure 2 The enlarged schematic diagram of the structure at A in

[0031] Figure 4 This is a side view schematic diagram of the utility model.

[0032] In the figure, 1 is the frame; 11 is the workbench; 2 is the saw wheel; 3 is the saw blade; 4 is the guiding assembly; 41 is the guiding arm; 42 is the guiding head; 43 is the lifting assembly; 431 is the rack; 432 is the gear; 433 is the worm gear; 434 is the worm; 435 is the hand wheel; 5 is the guiding block; 6 is the guiding wheel; 7 is the limiting groove; 8 is the pressing wheel; 9 is the screw; 10 is the rotating handle. Specific implementation mode

[0033] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0034] Embodiment: Please refer to FIGS. 1-4. A guiding device for a sawing machine includes a frame 1 and a workbench 11 arranged on the frame 1. A saw wheel 2 is rotatably connected inside the frame 1. There are two saw wheels 2, which are arranged one above the other. A saw blade 3 is sleeved on the two saw wheels 2. A guiding assembly 4 for controlling the direction of the saw belt is arranged on the frame 1. The guiding assembly 4 includes a guiding arm 41 slidably connected to the frame 1. A guiding head 42 is arranged at the bottom of the guiding arm 41. A lifting assembly 43 for controlling the height of the guiding arm 41 is arranged inside the frame 1; the lifting assembly 43 includes a rack 431 arranged on the guiding arm 41. A gear 432 is rotatably connected inside the frame 1. The gear 432 meshes with the rack 431. A rotating rod is fixedly connected to the center of the gear 432. A worm gear 433 is fixedly connected to the rotating rod. The rotation centers of the gear 432 and the worm gear 433 are collinear. A worm 434 is rotatably connected to the frame 1. The worm 434 meshes with the worm gear 433. A hand wheel 435 is fixedly connected to the end of the worm 434.

[0035] Specifically, by changing the height of the guiding arm 41 through the lifting assembly 43, the length of the saw blade 3 between the guiding arm 41 and the workpiece can be adjusted according to the thickness of the cut workpiece, preventing the situation that the saw blade 3 shakes due to the too long length of the saw blade 3 between the guiding arm 41 and the workpiece during the sawing process, effectively reducing the possibility of the saw blade 3 breaking and effectively improving the processing quality.

[0036] In the lifting assembly 43, by rotating the handwheel 435, the worm 434 is controlled to rotate, thereby driving the worm gear 433 to rotate, and further controlling the gear 432 to drive the rack 431 to move, so as to control the height of the guiding arm 41 in the vertical direction, realize the adjustment of the vertical position of the guiding arm 41, ensure that the saw blade 3 between the guiding arm 41 and the workpiece to be cut always maintains an appropriate length, and prevent the saw blade 3 from shaking; at the same time, the design of the worm gear 433 and the worm 434 can realize the self-locking of the position of the guiding arm 41, thereby fixing the current position of the guiding arm 41.

[0037] Furthermore, two guiding blocks 5 are arranged on the guiding head 42 in a left-right manner, the saw blade 3 is located between the two guiding blocks 5, and a guiding wheel 6 is also arranged on the guiding head 42. There are two guiding wheels 6, and the two guiding wheels 6 are arranged horizontally. The saw blade 3 is located between the two guiding wheels 6, and the guiding wheels 6 are located above the guiding blocks 5; the saw blade 3 is arranged between the two guiding blocks 5, which can change the installation angle of the saw blade 3, so that the saw blade 3 always maintains a perpendicular state with the workpiece to be cut, improving the cutting efficiency; the design of the guiding wheels 6 further ensures that when the saw blade 3 contacts the workpiece to be cut, it can maintain a perpendicular state.

[0038] Furthermore, a limiting groove 7 is slidably connected inside the frame 1, a pressing wheel 8 is rotatably connected inside the limiting groove 7, the limiting groove 7 is located on one side of the upper saw wheel 2, and the saw blade 3 is located between the pressing wheel 8 and the saw wheel 2. The limiting groove 7 can be embedded with the saw wheel 2. The design of the pressing wheel 8 and the limiting groove 7 can press the saw blade 3 on the saw wheel 2, so that during the cutting process, the direction of the saw blade 3 can be restricted, and the saw blade 3 can be prevented from shifting during work, improving the processing quality.

[0039] Furthermore, a control assembly for controlling the limiting groove 7 to approach or move away from the saw wheel 2 is arranged on the frame 1. The control assembly includes a screw rod 9 threadedly connected to the frame 1. One end of the screw rod 9 is rotatably connected to the limiting groove 7, and a rotating handle 10 is fixedly connected to the end of the screw rod 9 away from the limiting groove 7. By rotating the rotating handle 10 to rotate the screw rod 9, the limiting groove 7 is controlled to approach or move away from the saw wheel 2, so that the replacement of the saw wheel 2 can be facilitated.

[0040] Furthermore, the guiding block 5 is made of cemented carbide, which can improve the service life of the guiding block 5.

[0041] Furthermore, a hole for the saw blade 3 to pass through is opened on the workbench 11.

[0042] The working principle of the present utility model:

[0043] Rotate the handwheel 435 to control the rotation of the worm 434, thereby driving the rotation of the worm wheel 433, and further controlling the gear 432 to drive the rack 431 to move, so as to control the height of the guide arm 41 in the vertical direction, realize the adjustment of the vertical position of the guide arm 41, and ensure that the saw blade 3 between the guide arm 41 and the workpiece to be cut always maintains an appropriate length.

[0044] By rotating the handle 10 to rotate the screw rod 9, the limit groove 7 is controlled to approach the saw wheel 2, and the saw blade 3 can be pressed tightly on the saw wheel 2, so that during the cutting process, the direction of the saw blade 3 can be restricted, and the saw blade 3 can be prevented from shifting during work.

Claims

1. A guide device for a sawing machine, comprising a frame (1) and a workbench (11) arranged on the frame (1), wherein a saw wheel (2) is rotatably connected in the frame (1), two saw wheels (2) are provided, the two saw wheels (2) are arranged up and down, and saw blades (3) are sleeved on the two saw wheels (2), characterized in that: The frame (1) is provided with a guide assembly (4) for controlling the direction of the saw band, the guide assembly (4) comprises a guide arm (41) slidably connected to the frame (1), a guide head (42) is provided at the bottom of the guide arm (41), and a lifting assembly (43) for controlling the height of the guide arm (41) is provided in the frame (1).

2. A guide device for a sawing machine according to claim 1, characterized in that: The guide head (42) is provided with two guide blocks (5) arranged on the left and right, and the saw blade (3) is located between the two guide blocks (5).

3. A guide device for a sawing machine according to claim 2, characterized in that: The guide head (42) is also provided with a guide wheel (6), two guide wheels (6) are provided, the two guide wheels (6) are arranged horizontally, the saw blade (3) is located between the two guide wheels (6), and the guide wheel (6) is located above the guide block (5).

4. The guide device of a sawing machine according to claim 1, characterized in that: The lifting assembly (43) comprises a rack (431) arranged on the guide arm (41); a gear (432) is rotatably connected inside the frame (1); the gear (432) is meshed with the rack (431); a rotating rod is fixedly connected at the center of the gear (432); a worm wheel (433) is fixedly connected to the rotating rod; a worm (434) is rotatably connected to the frame (1); the worm (434) is meshed with the worm wheel (433); and a hand wheel (435) is fixedly connected to the end of the worm (434).

5. The guide device of a sawing machine according to claim 1, characterized in that: A limiting groove (7) is slidably connected in the frame (1), a clamping wheel (8) is rotatably connected in the limiting groove (7), the limiting groove (7) is located on one side of the upper saw wheel (2), the saw blade (3) is located between the clamping wheel (8) and the saw wheel (2), and the limiting groove (7) allows the saw wheel (2) to be embedded.

6. The guide device of a sawing machine according to claim 5, characterized in that: The frame (1) is provided with a control component for controlling the limit groove (7) to move closer to or farther away from the saw wheel (2), and the control component comprises a screw rod (9) threadedly connected to the frame (1), and one end of the screw rod (9) is rotatably connected to the limit groove (7).

7. The guide device of a sawing machine according to claim 6, characterized in that: One end of the screw rod (9) away from the limiting groove (7) is fixedly connected to a rotating handle (10).

8. The guide device of a sawing machine according to claim 2, characterized in that: The guide block (5) is made of hard alloy.

9. The guide device of a sawing machine according to claim 1, characterized in that: The workbench (11) is provided with a hole for the saw blade (3) to pass through.

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