Cutting machine with safety protection mechanism

Abstract

The application relates to a cutting machine, in particular to a cutting machine with a safety protection mechanism, which comprises a base, a supporting seat, a control arm, a grinding wheel saw blade and a fixing shaft, the supporting seat is connected to the base, the control arm is rotationally connected to the supporting seat, the fixing shaft is arranged in the control arm, the grinding wheel saw blade is connected to the fixing shaft, the cutting machine further comprises a driving assembly, a transmission shaft, a limiting assembly and a reset assembly, the transmission shaft is rotationally connected to the control arm and coaxial with the fixing shaft, the driving assembly supplies energy to the transmission shaft, and the limiting assembly fixes the grinding wheel saw blade. Before cutting, the grinding wheel saw blade needs to be horizontally moved, during which the operator inspects the grinding wheel saw blade to confirm whether the grinding wheel saw blade meets the safety cutting condition, so that the safety of cutting production is improved, the grinding wheel saw blade is energized by the driving assembly after being moved to the transmission shaft, and the limiting assembly fixes the grinding wheel saw blade, so that the stability of cutting is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a cutting machine, in particular to a cutting machine with a safety protection mechanism. BACKGROUND

[0002] The cutting machine is a kind of mechanical equipment widely used in various industries, which is composed of cutting tools, clamps and control systems. The cutting tool is the main cutting component, which cuts objects through the high-speed rotation of the saw blade. However, the saw blade is a consumable product that will be consumed during use, and there is a risk of cracking. If the cracked saw blade is used for cutting, long-term cutting will cause the saw blade to crack, endangering the lives of operators.

[0003] Although the existing cutting machine has safety regulations that require observation of the state of the saw blade before starting the machine, most operators have weak safety awareness and cannot carefully check the saw blade before starting the machine every time, resulting in the risk of saw blade cracking during actual cutting production.

[0004] Therefore, the present application provides a cutting machine with a safety protection mechanism. SUMMARY

[0005] In order to overcome the problem that the operator does not carefully check the cutting machine before use, and the cracked saw blade is prone to cracking during long-term cutting, endangering the lives of operators, the technical problem to be solved is to provide a cutting machine with a safety protection mechanism, which forces the operator to move and position the saw blade before starting the cutting machine for operation, improves the safety awareness and safety actions of the operator, and reduces the production risk.

[0006] The technical scheme is: a cutting machine with a safety protection mechanism, comprising a base, a support seat, a control arm, a grinding wheel saw blade and a fixed shaft, the support seat is connected to the base, the control arm is rotatably connected to the support seat, the fixed shaft is arranged in the control arm, the grinding wheel saw blade is connected to the fixed shaft, further comprising a driving assembly, a transmission shaft, a limiting assembly and a reset assembly, the transmission shaft is rotatably connected in the control arm and coaxial with the fixed shaft, the driving assembly supplies energy to the transmission shaft, the driving assembly is composed of a servo motor and a transmission belt, the servo motor is fixed in the control arm by bolts, the transmission belt is sleeved between the output shaft of the servo motor and the transmission shaft, the transmission shaft is provided with an axial spline and an annular limiting ring, a clamping groove is formed in the middle of the grinding wheel saw blade and is embedded with the spline, the limiting assembly is composed of a first control ring, a second control ring and a centrifugal block, the first control ring and the second control ring are both slidably sleeved on the transmission shaft and located on both sides of the limiting ring, a first reset spring is connected between the first control ring and the second control ring, the centrifugal block is rotatably connected to the end of the transmission shaft, and a second reset spring is connected between the centrifugal block and the transmission shaft, the grinding wheel saw blade is embedded in the spline after being moved to the transmission shaft from the fixed shaft, and then the grinding wheel saw blade is limited and fixed by the first control ring and the centrifugal block, after the grinding wheel saw blade completes the cutting work, the reset assembly arranged in the transmission shaft can push the grinding wheel saw blade back to the fixed shaft from the transmission shaft.

[0007] Further preferred scheme of the present application is that the distance between the centrifugal block and the limiting ring is equal to the width of the grinding wheel saw blade and the first control ring.

[0008] Further preferred scheme of the present application is that the reset assembly is composed of a handle, a first steel cable, a second steel cable and a limiting block, the end of the centrifugal block is connected to the second control ring through the first steel cable, the limiting block is radially arranged and slidably connected in the spline, and the limiting block can slide and limit the second control ring, the handle is slidably connected to the transmission shaft, and the handle is connected to the limiting block through the second steel cable.

[0009] Further preferred scheme of the present application is that a spring is connected between the limiting block and the spline, and the elastic force of the spring is smaller than that of the first reset spring.

[0010] Further preferred scheme of the present application is further provided with a guide rod and a third reset spring, the guide rod is arranged in the base, the support seat is slidably connected in the guide rod and connected with the third reset spring.

[0011] Further preferred scheme of the present application is further provided with a clamp, a worm and a worm wheel, the clamp is arranged on the side surface of the support seat, the worm is rotatably connected in the clamp, the worm wheel is arranged at the rotating shaft of the control arm, and the worm and the worm wheel are meshed with each other.

[0012] Further preferred scheme of the present application is that the clamp is made of rubber material, and the worm can be assembled and disassembled in the clamp.

[0013] The further preferred scheme of the present application is further comprising a bench clamp and a fixing bolt, the bench clamp is rotatably connected to the base, and the fixing bolt is arranged between the bench clamp and the base.

[0014] The further preferred scheme of the present application is that an arc-shaped sliding groove is arranged on the base, and the fixing bolt is arranged in the arc-shaped sliding groove.

[0015] The further preferred scheme of the present application is further comprising a telescopic baffle, which is connected to the base.

[0016] The present application has the following advantages: before cutting, the abrasive saw blade needs to be moved horizontally, and the operator checks the safety of the abrasive saw blade during the movement to confirm whether the abrasive saw blade meets the safety cutting condition, thereby improving the safety of cutting production; after the abrasive saw blade is moved to the transmission shaft, the driving assembly is energized, and the limiting assembly limits and fixes the abrasive saw blade, thereby improving the stability of cutting; after cutting, the reset assembly automatically pushes the abrasive saw blade from the transmission shaft to the fixed shaft, which facilitates the repeated checking action in the next cutting; the present application forces the operator to perform safety checking by adjusting the position of the abrasive saw blade, thereby effectively improving the safety during cutting. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the driving assembly of the present application.

[0019] Figure 3 It is a three-dimensional structure separation diagram of the limiting assembly of the present application.

[0020] Figure 4 It is a three-dimensional structure separation diagram of the first part of the reset assembly of the present application.

[0021] Figure 5 It is a three-dimensional structure separation diagram of the second part of the reset assembly of the present application.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the guide rod of the present application.

[0023] Figure 7 It is a three-dimensional structure separation diagram of the worm gear and the bench clamp of the present application.

[0024] Figure 8 It is a three-dimensional structure cross-sectional view of the telescopic baffle of the present application.

[0025] Reference numerals: 1. Base, 2. Support base, 3. Control arm, 4. Grinding wheel saw blade, 5. Drive assembly, 6. Drive shaft, 601. Spline, 602. Limiting ring, 7. Fixed shaft, 8. Handle, 9. First control ring, 10. Second control ring, 1001. First return spring, 11. Centrifugal stop, 1101. Second return spring, 12. First steel cable, 13. Second steel cable, 1301. Limiting block, 14. Guide rod, 15. Third return spring, 16. Clamp, 17. Worm gear, 18. Worm wheel, 19. Bench vise, 20. Fixing bolt, 21. Telescopic baffle. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] Example: A cutting machine with a safety protection mechanism, such as Figures 1-5 As shown, the device includes a base 1, a support 2, a control arm 3, an abrasive saw blade 4, and a fixed shaft 7. The support 2 is connected to the rear of the base 1. The control arm 3 is rotatably connected to the support 2. The fixed shaft 7 is located inside the control arm 3, and the abrasive saw blade 4 is connected inside the fixed shaft 7. The device also includes a drive assembly 5, a transmission shaft 6, a limiting assembly, and a reset assembly. The transmission shaft 6 is rotatably connected inside the control arm 3 and coaxial with the fixed shaft 7. The drive assembly 5 supplies power to the transmission shaft 6. The drive assembly 5 consists of a servo motor and a transmission belt. The servo motor is fixed inside the control arm 3 by bolts. The transmission belt is sleeved between the output shaft of the servo motor and the transmission shaft 6 via a pulley. The transmission shaft 6 has an axial spline 601 and an annular limiting ring 602. The abrasive saw blade 4 has a groove in the middle that engages with the spline 601. The limiting assembly consists of a first control ring 9. The system consists of a second control ring 10 and a centrifugal stop block 11. The first control ring 9 and the second control ring 10 are both slidably sleeved on the transmission shaft 6 and located on both sides of the limiting ring 602. A first return spring 1001 is connected between the first control ring 9 and the second control ring 10. The centrifugal stop block 11 is rotatably connected to the end of the transmission shaft 6. A second return spring 1101 is connected between the four centrifugal stop blocks 11 and the transmission shaft 6. The distance between the centrifugal stop block 11 and the limiting ring 602 is equal to the width between the abrasive wheel saw blade 4 and the first control ring 9. After the abrasive wheel saw blade 4 moves from the fixed shaft 7 to the transmission shaft 6, it is embedded in the spline 601. The first control ring 9 and the centrifugal stop block 11 limit and fix the abrasive wheel saw blade 4. After the abrasive wheel saw blade 4 completes the cutting work, the reset component set in the transmission shaft 6 can push the abrasive wheel saw blade 4 back from the transmission shaft 6 to the fixed shaft 7.

[0028] like Figure 3 , Figure 4 and Figure 5As shown, the reset assembly consists of a handle 8, a first steel cable 12, a second steel cable 13, and a limiting block 1301. The end of the centrifugal stop block 11 is connected to the second control ring 10 via the first steel cable 12. The limiting block 1301 is radially arranged and slidably inserted into the spline 601. A spring is connected between the limiting block 1301 and the spline 601. The spring force of this spring is less than that of the first reset spring 1001. The limiting block 1301 can slide and limit the second control ring 10. The handle 8 is slidably arranged on the right side of the drive shaft 6. The handle 8 is connected to the limiting block 1301 via the second steel cable 13. Before starting the drive assembly 5, the abrasive saw blade 4 is located on the fixed shaft 7. At this time, the operator needs to move the abrasive saw blade 4 to the right onto the drive shaft 6. During this process, the operator presses... The procedure involves rotating the saw blade 4 and performing a safety check. The saw blade 4 moves to the right and stops at the limiting ring 602. At this point, both the saw blade 4 and the first control ring 9 are located between the centrifugal stop 11 and the limiting ring 602. The drive assembly 5 then drives the transmission shaft 6 to rotate. As the transmission shaft 6 rotates, the centrifugal stop 11 rotates, thus blocking and limiting the left side of the saw blade 4 to prevent lateral deviation during cutting. Simultaneously, the end of the centrifugal stop 11 with a higher linear velocity pulls the second control ring 10 to the left via the first steel cable 12. The first return spring 1001 is compressed, and the second control ring 10 moves to the left until it disengages from the limiting block 1301 (all movements of the second control ring 10 affect the limiting block 1301). (301 is pressed), the limiting block 1301 springs upward under the action of the spring, thereby limiting the right side of the second control ring 10. After the cutting work is completed, the drive assembly 5 is turned off. At this time, the centrifugal stop 11 rotates and resets under the action of the second reset spring 1101. The centrifugal stop 11 will release the limitation on the left side of the abrasive wheel saw blade 4, and the second control ring 10 will push the first control ring 9 to move to the left through the first reset spring 1001. The first control ring 9 will simultaneously push the abrasive wheel saw blade 4 to move to the left. The abrasive wheel saw blade 4 thus moves from the drive shaft 6 to the fixed shaft 7. After the first control ring 9 pushes the abrasive wheel saw blade 4 onto the fixed shaft 7, the first control ring 9 cannot continue to move to the left (limiting the sliding range of the first control ring 9), and the first The return spring 1001 is still in a slightly compressed state. At this time, the handle 8 is pulled, and the handle 8 pulls the limit block 1301 back into the spline 601 through the second steel cable 13. The second control ring 10 will also be pushed to the right by the first return spring 1001 in a slightly compressed state, so that the limit block 1301 is located inside the second control ring 10. The cutting process is thus completed. When cutting is required, the above actions can be repeated. To simplify the effect, the saw blade 4 is manually moved to the right to the limit position. During this period, the saw blade 4 is rotated to check whether it meets the safe cutting conditions. Then, the cutting is performed through the drive assembly 5. After the cutting is completed, the drive assembly 5 is turned off, and the saw blade 4 will automatically move from the right drive shaft 6 to the fixed shaft 7 after the speed is reduced.

[0029] like Figure 6 As shown, it also includes a guide rod 14 and a third return spring 15. The guide rod 14 is provided inside the base 1, and the support seat 2 is slidably connected inside the guide rod 14 and the third return spring 15 is connected between the two, thereby increasing the movement range of the support seat 2. For objects with a large width, it effectively improves the cutting range and cutting efficiency of the abrasive wheel saw blade 4.

[0030] like Figure 7 As shown, it also includes a clamp 16, a worm gear 17, and a worm wheel 18. The clamp 16 is located on the side of the support base 2. The worm gear 17 is rotatably connected inside the clamp 16. The worm wheel 18 is located at the pivot of the control arm 3. The worm gear 17 and the worm wheel 18 mesh with each other. The clamp 16 is made of rubber. The worm gear 17 can be loaded and unloaded inside the clamp 16. The effect is that after the worm gear 17 is removed, the operator can rotate the control arm 3 at a large angle. After the worm gear 17 is loaded into the clamp 16, the control arm 3 can be rotated at a controllable small angle by rotating the worm gear 17, which is convenient for fine cutting operations.

[0031] like Figure 7 As shown, it also includes a vise 19 and a fixing bolt 20. The vise 19 is rotatably connected to the base 1, specifically located below the abrasive wheel saw blade 4. The vise 19 consists of a fixing part and a clamping part. The fixing part is used to place the work to be cut, and the clamping part consists of a push plate and a screw. By rotating the screw, the push plate is moved horizontally within the fixing part, and then the work to be cut is clamped and fixed by the push plate and the fixing part of the vise 19. A fixing bolt 20 is provided between the vise 19 and the base 1. An arc-shaped sliding groove is provided on the base 1, and the fixing bolt 20 is set in the arc-shaped sliding groove. The arc-shaped sliding groove provides adjustment space for the vise 19.

[0032] like Figure 1 and Figure 8 As shown, it also includes a telescopic baffle 21, which is connected to the base 1. The telescopic baffle 21 can block the sparks generated when the abrasive saw blade 4 is cutting, effectively improving the safety of the work site. The telescopic baffle 21 is specifically located between the support base 2 and the vise 19. The middle part of the telescopic baffle 21 can be vertically compressed and can be reset by a spring. The upper part of the telescopic baffle 21 is provided with a roller. The control arm 3 contacts and pushes the roller, thereby pressing the telescopic baffle 21. The roller allows the control arm 3 to smoothly push the telescopic baffle 21 to compress it, thus providing the range of rotation of the control arm 3.

[0033] The working principle of this invention embodiment is as follows: The object to be cut is placed in the vise 19 and fixed. The angle of the vise 19 is adjusted by the fixing bolts 20. After the adjustment is completed, the operator needs to move the abrasive saw blade 4 to the right onto the drive shaft 6. The operator performs a safety inspection on the abrasive saw blade 4 as required. After the abrasive saw blade 4 moves to the right and contacts the first control ring 9, the abrasive saw blade 4 continues to move to the right, pushing the first control ring 9 to move. The first control ring 9 drives the second control ring 10 to move to the right through the first return spring 1001 (the limit block 1301 is located within the second control ring 10 during the movement of the second control ring 10). The spring on the upper part is in a compressed state until the first control ring 9 contacts the limit ring 602 for limitation. At this time, both the abrasive saw blade 4 and the first control ring 9 are located between the centrifugal stop block 11 and the limit ring 602. Then, the drive assembly 5 drives the transmission shaft 6 to rotate. At the same time, the centrifugal stop block 11 will rotate, and the centrifugal stop block 11 will block and limit the left side of the abrasive saw blade 4 to prevent the abrasive saw blade 4 from shifting laterally during cutting. At the same time, the end of the centrifugal stop block 11 with a larger linear velocity pulls the second control ring 10 to the left through the first steel cable 12. The first return spring 1001 enters a compressed state, and the second control ring 10 moves to the left. The control ring 10 moves to the left until it disengages from the limiting block 1301. The limiting block 1301 springs upward under the action of the spring, thereby limiting the right side of the second control ring 10. The operator rotates the control arm 3 in a timely manner to complete the cutting action. At the same time, the worm gear 17 can be rotated to finely rotate the worm wheel 18, i.e., the control arm 3, to improve the cutting effect. During the cutting process, the telescopic baffle 21 can block the high-temperature metal particles generated during cutting, improving the safety of the work site. After the cutting work is completed, the drive assembly 5 is turned off. At this time, the centrifugal baffle 11 rotates back under the action of the second reset spring 1101. When the centrifugal stop 11 releases the restriction on the left side of the abrasive saw blade 4, the second control ring 10 will push the first control ring 9 to the left through the first return spring 1001. The first control ring 9 will simultaneously push the abrasive saw blade 4 to the left, and the abrasive saw blade 4 will move from the drive shaft 6 to the fixed shaft 7. At this time, pull the handle 8, and the handle 8 will pull the limit block 1301 back into the spline 601 through the second steel cable 13. The second control ring 10 will also be pushed to the right by the first return spring 1001 in a slightly compressed state, so that the limit block 1301 is located inside the second control ring 10, thus completing the cutting process.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cutting machine with a safety protection mechanism, comprising a base (1), a support (2), a control arm (3), an abrasive saw blade (4), and a fixed shaft (7), wherein the support (2) is connected to the base (1), the control arm (3) is rotatably connected to the support (2), the fixed shaft (7) is provided inside the control arm (3), and the abrasive saw blade (4) is connected inside the fixed shaft (7), characterized in that, It also includes a drive assembly (5), a transmission shaft (6), a limiting assembly and a reset assembly for fixing the abrasive saw blade (4). The transmission shaft (6) is rotatably connected inside the control arm (3) and coaxial with the fixed shaft (7). The drive assembly (5) supplies power to the transmission shaft (6). The transmission shaft (6) is provided with an axial spline (601) and an annular limiting ring (602). The abrasive saw blade (4) has a slot in the middle that fits into the spline (601). The limiting assembly is controlled by the first control arm (5). The system consists of a first control ring (9), a second control ring (10), and a centrifugal stop (11). The first control ring (9) and the second control ring (10) are both slidably sleeved on the transmission shaft (6) and located on both sides of the limit ring (602). A first return spring (1001) is connected between the first control ring (9) and the second control ring (10). The centrifugal stop (11) is rotatably connected to the end of the transmission shaft (6). A second return spring is connected between the centrifugal stop (11) and the transmission shaft (6). Spring (1101), the saw blade (4) moves from the fixed shaft (7) to the transmission shaft (6) and is embedded in the spline (601). Then, the first control ring (9) and the centrifugal stop (11) limit and fix the saw blade (4). After the saw blade (4) completes the cutting work, the reset assembly set in the transmission shaft (6) can push the saw blade (4) back from the transmission shaft (6) to the fixed shaft (7). The reset assembly consists of a handle (8), a first steel cable (12), and a second spring. The system consists of a steel cable (13) and a limiting block (1301). The end of the centrifugal stop (11) is connected to the second control ring (10) via the first steel cable (12). The limiting block (1301) is radially arranged and slidably inserted into the spline (601). The limiting block (1301) can slide and limit the second control ring (10). The handle (8) is slidably connected to the drive shaft (6). The handle (8) is connected to the limiting block (1301) via the second steel cable (13).

2. The cutting machine with a safety protection mechanism according to claim 1, characterized in that, The distance between the centrifugal stop (11) and the limiting ring (602) is equal to the width between the grinding wheel saw blade (4) and the first control ring (9).

3. The cutting machine with a safety protection mechanism according to claim 1, characterized in that, A spring is connected between the limit block (1301) and the spline (601), and the spring force of the spring is less than that of the first return spring (1001).

4. The cutting machine with a safety protection mechanism according to claim 1, characterized in that, It also includes a guide rod (14) and a third reset spring (15). The base (1) is provided with the guide rod (14), and the support seat (2) is slidably connected in the guide rod (14) and the third reset spring (15) is connected between the two.

5. The cutting machine with a safety protection mechanism according to claim 4, characterized in that, It also includes a clamp (16), a worm (17) and a worm wheel (18). The clamp (16) is located on the side of the support base (2). The worm (17) is rotatably connected inside the clamp (16). The worm wheel (18) is located at the pivot of the control arm (3). The worm (17) and the worm wheel (18) mesh with each other.

6. The cutting machine with a safety protection mechanism according to claim 5, characterized in that, The clamp (16) is made of rubber, and the worm gear (17) can be loaded and unloaded within the clamp (16).

7. The cutting machine with a safety protection mechanism according to claim 6, characterized in that, It also includes a bench vise (19) and a fixing bolt (20). The bench vise (19) is rotatably connected to the base (1), and a fixing bolt (20) is provided between the bench vise (19) and the base (1).

8. The cutting machine with a safety protection mechanism according to claim 7, characterized in that, An arc-shaped groove is provided on the base (1), and the fixing bolt (20) is set in the arc-shaped groove.

9. The cutting machine with a safety protection mechanism according to claim 7, characterized in that, It also includes a telescopic baffle (21) which is connected to the base (1).

Images