Workpiece cutting saw

Abstract

The utility model relates to the technical field of cutting saws, and particularly discloses a workpiece cutting saw which comprises a working table, a support is fixedly installed on one side of the top of the working table, a control handle is rotatably connected to the interior of the support, a servo motor is fixedly installed on one side of the control handle, the output end of the servo motor is fixedly connected with a rotating shaft, and the rotating shaft is fixedly connected with the control handle. A rotating shaft is arranged on the workbench, a saw blade is installed at one end of the rotating shaft, a protection mechanism is arranged between the rotating shaft and the saw blade, a positioning mechanism is arranged on the workbench, the protection mechanism comprises an adjusting sleeve, and the adjusting sleeve is fixedly installed on one side of the saw blade. By arranging the protection mechanism, after the equipment is used, the adjusting sleeve is pushed to separate the limiting seat from the limiting block on the rotating shaft, when a worker accidentally drives the servo motor, the adjusting sleeve cannot rotate along with the rotating shaft, the saw blade cannot rotate for cutting, the risk that the worker makes contact with the rotating saw blade can be reduced, and the working efficiency is improved. And the safety of the equipment is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting saws, and in particular relates to a workpiece cutting saw. Background Art

[0002] A cutting saw is an electric tool used to cut materials. It is usually used to process wood, metal, plastic and various other materials. They can play an important role in industrial production. Cutting saws can use different saw blades according to different cutting requirements, and there are many types, including circular saws, reciprocating saws, chain saws, etc. At present, when a cutting saw is used, the saw blade is usually driven by a servo motor to rotate to cut the workpiece. However, the cutting saw in the prior art does not have a protection mechanism for the saw blade. The worker is likely to accidentally drive the saw blade, increasing the risk of the worker contacting the rotating saw blade, resulting in serious injury. Utility Model Content

[0003] The utility model aims to provide a workpiece cutting saw to solve the problem that the cutting saw in the prior art has no protection mechanism for the saw blade, and the worker is likely to drive the saw blade accidentally, increasing the risk of the worker contacting the rotating saw blade.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A workpiece cutting saw comprises a workbench, a bracket is fixedly mounted on one side of the top of the workbench, a control handle is rotatably connected inside the bracket, a servo motor is fixedly mounted on one side of the control handle, a rotating shaft is fixedly connected to the output end of the servo motor, a saw blade is mounted on one end of the rotating shaft, a protective mechanism is arranged between the rotating shaft and the saw blade, and a positioning mechanism is arranged on the workbench.

[0006] Preferably, the protection mechanism comprises an adjusting sleeve, the adjusting sleeve is fixedly mounted on one side of the saw blade, a plurality of limit blocks are fixedly connected to the outer edge of the rotating shaft, and a plurality of limit seats matched with the limit blocks are fixedly connected to the inner wall of the adjusting sleeve.

[0007] Preferably, the outer surface of the rotating shaft is threadedly connected to a limiting sleeve, and the outer portion of the limiting sleeve is provided with anti-slip grooves.

[0008] Preferably, a fixed disk is fixedly connected to one side of the control handle, and the fixed disk is rotatably sleeved on the outside of the rotating shaft, and a first magnet is symmetrically installed on the side surface of the fixed disk.

[0009] Preferably, one end of the adjustment sleeve away from the saw blade is fixedly connected to a positioning piece, and a second magnet is symmetrically installed inside the positioning piece.

[0010] Preferably, the positioning mechanism comprises a positioning plate, a slide groove for the positioning plate to slide is provided on the top of the workbench, a threaded rod is rotatably installed inside the slide groove, and the positioning plate is threadedly connected to the outside of the threaded rod.

[0011] Preferably, one end of the slide groove passes through the workbench and is fixedly connected to a handle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a protective mechanism, and after the equipment is used, the adjusting sleeve can be pushed to separate the limit seat and the limit block on the rotating shaft. When the staff accidentally drives the servo motor, the adjusting sleeve cannot rotate with the rotating shaft, and the saw blade will not rotate to cut, which can reduce the risk of the staff contacting the rotating saw blade and enhance the safety of the equipment.

[0014] 2. The utility model provides a positioning mechanism to facilitate adjustment of the cutting position of the workpiece, and places the workpiece against the positioning plate to facilitate cutting of the workpiece, thereby improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is one of the three-dimensional diagrams of the utility model;

[0016] Figure 2 This is the second stereogram of the utility model;

[0017] Figure 3 for Figure 2 The enlarged view of point A is shown;

[0018] Figure 4 It is one of the partial structural schematic diagrams of the utility model;

[0019] Figure 5 for Figure 4 The cross-sectional view shown;

[0020] Figure 6 This is the second schematic diagram of the partial structure of the utility model;

[0021] Figure 7 It is a structural schematic diagram of the adjustment sleeve of the utility model.

[0022] In the figure:

[0023] 1. Workbench; 2. Bracket; 3. Control handle; 4. Rotating shaft; 5. Protection mechanism; 51. Adjustment sleeve; 52. Limit seat; 53. Limit block; 54. Limit sleeve; 55. Positioning sheet; 56. Second magnet; 57. First magnet; 58. Fixed plate; 6. Positioning mechanism; 61. Positioning plate; 62. Slide groove; 63. Threaded rod; 64. Handle; 7. Saw blade; 8. Servo motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-Figure 7 As shown, a workpiece cutting saw comprises a workbench 1, a bracket 2 is fixedly installed on one side of the top of the workbench 1, a control handle 3 is rotatably connected inside the bracket 2, a servo motor 8 is fixedly installed on one side of the control handle 3, a rotating shaft 4 is fixedly connected to the output end of the servo motor 8, a saw blade 7 is installed at one end of the rotating shaft 4, a protection mechanism 5 is arranged between the rotating shaft 4 and the saw blade 7, the saw blade 7 can be fixed on the rotating shaft 4 by the protection mechanism 5, driving the servo motor 8 can drive the rotating shaft 4 to rotate, the rotation of the rotating shaft 4 can drive the saw blade 7 to rotate, the rotation of the saw blade 7 can cut the workpiece, the fixing effect of the saw blade 7 can also be released by the protection mechanism 5, so that when the rotating shaft 4 rotates, the saw blade 7 cannot rotate with the rotating shaft 4, so that the saw blade 7 can be prevented from being accidentally opened, and the risk of the staff contacting the rotating saw blade 7 is reduced, and a positioning mechanism 6 is arranged on the workbench 1, the positioning mechanism 6 is used to position the workpiece, so that the staff can control the cutting position of the workpiece conveniently.

[0026] Specifically, the protection mechanism 5 includes an adjusting sleeve 51, which is fixedly mounted on one side of the saw blade 7. The adjusting sleeve 51 is slidably mounted on the rotating shaft 4, and the adjusting sleeve 51 and the saw blade 7 are arranged concentrically. A plurality of limit blocks 53 are fixedly connected to the outer edge of the rotating shaft 4, and a plurality of limit seats 52 matched with the limit blocks 53 are fixedly connected to the inner wall of the adjusting sleeve 51. The limit seats 52 and the limit blocks 53 are equidistantly distributed along the circumferential direction of the axis of the rotating shaft 4, and the number of the limit seats 52 is set to twice the number of the limit blocks 53, so that the limit seats 52 can be smoothly engaged with the outside of the limit blocks 53. After the sliding adjusting sleeve 51 drives the limit seat 52 to engage with the outside of the limit block 53, when the rotating shaft 4 rotates, the cooperation of the limit seat 52 and the limit block 53 can drive the adjusting sleeve 51 to rotate, and the rotation of the adjusting sleeve 51 can drive the saw blade 7 to rotate, and the rotation of the saw blade 7 can cut the workpiece.

[0027] More specifically, the outer surface of the rotating shaft 4 is threadedly connected to a limiting sleeve 54, and the outside of the limiting sleeve 54 is provided with anti-slip grooves. Pulling the adjusting sleeve 51 drives the limiting seat 52 to engage with the outside of the limiting block 53, and then rotating the limiting sleeve 54 to make it abut against the adjusting sleeve 51. The adjusting sleeve 51 can be limited to prevent the adjusting sleeve 51 from sliding automatically, thereby enhancing the rotation stability of the adjusting sleeve 51, that is, enhancing the cutting stability of the saw blade 7.

[0028] Furthermore, a fixed disk 58 is fixedly connected to one side of the control handle 3, and the fixed disk 58 is rotatably sleeved on the outside of the rotating shaft 4. A first magnet 57 is symmetrically installed on the side of the fixed disk 58. A positioning plate 55 is fixedly connected to the end of the adjusting sleeve 51 away from the saw blade 7. A second magnet 56 is symmetrically installed inside the positioning plate 55. The second magnet 56 and the first magnet 57 are opposite magnetic poles. When the adjusting sleeve 51 is pushed, the first magnet 57 enters the second magnet 56. The adjusting sleeve 51 can be fixed by the magnetic force between the second magnet 56 and the first magnet 57 to prevent the adjusting sleeve 51 from sliding automatically. The adjusting sleeve 51 slides to the limit seat 52 and the limit block 53 are separated. When the servo motor 8 is driven to drive the rotating shaft 4 to rotate, the adjusting sleeve 51 will not rotate with the rotating shaft 4, which can prevent the saw blade 7 from being accidentally opened, and effectively reduce the probability of accidental injury to the staff.

[0029] Furthermore, the positioning mechanism 6 includes a positioning plate 61, and a slide groove 62 is provided on the top of the workbench 1 for the positioning plate 61 to slide. A threaded rod 63 is rotatably installed inside the slide groove 62. The positioning plate 61 is threadedly connected to the outside of the threaded rod 63. One end of the slide groove 62 passes through the workbench 1 and is fixedly connected to a handle 64. Rotating the handle 64 can drive the threaded rod 63 to rotate. Since the positioning plate 61 is slidably connected to the slide groove 62, the rotation of the threaded rod 63 can drive the positioning plate 61 to slide, thereby changing the position of the positioning plate 61, making it convenient for the staff to adjust the positioning plate 61 according to the position of the workpiece to be cut. When cutting, one side of the workpiece is abutted against the positioning plate 61, and then the workpiece can be held by hand. The workpiece can be cut by the saw blade 7, which can enhance the cutting stability and improve the accuracy of the cutting position.

[0030] Working principle: Rotate and adjust the position of the positioning plate 61, make the workpiece abut against the positioning plate 61, pull the adjusting sleeve 51 to drive the limiting seat 52 to engage with the outside of the limiting block 53, and then rotate the limiting sleeve 54 to make it abut against the adjusting sleeve 51, so as to limit the adjusting sleeve 51 and prevent the adjusting sleeve 51 from sliding automatically. Drive the servo motor 8 to drive the rotating shaft 4 to rotate. When the rotating shaft 4 rotates, the adjusting sleeve 51 can be driven to rotate through the cooperation of the limiting seat 52 and the limiting block 53. The rotation of the adjusting sleeve 51 can drive the saw blade 7 to rotate, and the saw blade 7 rotates. The workpiece can be cut by movement. After cutting, the limit sleeve 54 is rotated to separate it from the positioning piece 55, and the adjusting sleeve 51 is pushed to separate the limit block 53 from the limit seat 52. The first magnet 57 and the second magnet 56 can be combined by magnetic force, so that the adjusting sleeve 51 can be fixed. At this time, if the servo motor 8 is driven carelessly, the servo motor 8 can only drive the rotating shaft 4 to rotate, and the adjusting sleeve 51 cannot rotate with the rotating shaft 4, then the saw blade 7 will not rotate for cutting, thereby reducing the risk of staff contacting the rotating saw blade 7 and enhancing the safety of the equipment.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A workpiece cutting saw, comprising a worktable (1), characterized in that: A bracket (2) is fixedly mounted on one side of the top of the workbench (1); a control handle (3) is rotatably connected inside the bracket (2); a servo motor (8) is fixedly mounted on one side of the control handle (3); a rotating shaft (4) is fixedly connected to the output end of the servo motor (8); a saw blade (7) is mounted on one end of the rotating shaft (4); a protective mechanism (5) is arranged between the rotating shaft (4) and the saw blade (7); and a positioning mechanism (6) is arranged on the workbench (1).

2. A workpiece cutting saw according to claim 1, characterized in that: The protection mechanism (5) comprises an adjustment sleeve (51), the adjustment sleeve (51) being fixedly mounted on one side of the saw blade (7), the outer edge of the rotating shaft (4) being fixedly connected to a plurality of limit blocks (53), and the inner wall of the adjustment sleeve (51) being fixedly connected to a plurality of limit seats (52) matched with the limit blocks (53).

3. A workpiece cutting saw according to claim 1, characterized in that: The outer surface of the rotating shaft (4) is threadedly connected to a limiting sleeve (54), and the outer portion of the limiting sleeve (54) is provided with anti-slip grooves.

4. A workpiece cutting saw according to claim 1, characterized in that: A fixed disk (58) is fixedly connected to one side of the control handle (3), and the fixed disk (58) is rotatably sleeved on the outside of the rotating shaft (4). A first magnet (57) is symmetrically mounted on the side surface of the fixed disk (58).

5. A workpiece cutting saw according to claim 2, characterized in that: A positioning piece (55) is fixedly connected to one end of the adjustment sleeve (51) away from the saw blade (7), and a second magnet (56) is symmetrically installed inside the positioning piece (55).

6. A workpiece cutting saw according to claim 1, characterized in that: The positioning mechanism (6) comprises a positioning plate (61), a slide groove (62) for the positioning plate (61) to slide is provided on the top of the workbench (1), a threaded rod (63) is rotatably installed inside the slide groove (62), and the positioning plate (61) is threadedly connected to the outside of the threaded rod (63).

7. A workpiece cutting saw according to claim 6, characterized in that: One end of the slide groove (62) passes through the workbench (1) and is fixedly connected to a handle (64).

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