Anti-collision device of numerical control cutting machine

Abstract

The utility model relates to the technical field of numerical control cutting machines, in particular to a numerical control cutting machine anti-collision device which comprises a supporting protruding block, a strip-shaped plate, an extrusion pad and a connecting plate, the supporting protruding block is arranged on a machine shell of a numerical control cutting machine and located on the side of a cutting blade, and the strip-shaped plate is arranged in the supporting protruding block in a sliding mode. The extrusion pad is arranged at the bottom of the strip-shaped plate and located below the supporting protruding block, a limiting rod and a reset spring are arranged on one side of the connecting plate, a plurality of first limiting through holes are formed in the strip-shaped plate and extend in the height direction of the strip-shaped plate, and a second limiting through hole is formed in the supporting protruding block and extends in the height direction of the strip-shaped plate. The free end of the limiting rod penetrates through the second limiting through hole to one of the first limiting through holes, and the free end of the reset spring is fixedly connected with the end face, close to the connecting plate, of the supporting protruding block. According to the anti-collision device of the numerical control cutting machine, the extrusion pad limits the cutting blade of the numerical control cutting machine, so that the cutting blade is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control cutting machines, in particular to an anti-collision device for numerical control cutting machines. Background Art

[0002] Mechatronic cutting machines are called CNC cutting machines, such as CNC plasma and flame cutting machines. They are driven by digital programs to move the machine tools. As the machine tools move, the cutting tools that are randomly worn cut the objects. In the prior art, for example, China Publication No.: CN213998305U, a CNC cutting machine anti-collision device, including two guide rails fixedly mounted on the bed, two moving seats slidably connected to the two guide rails, and a cross bar fixedly mounted between the two moving seats, the bed is fixedly mounted with a hollow plate, the cross bar is slidably connected with two sliding blocks, and the two sliding blocks are provided with through holes that match the cross bar, the two sliding blocks are close to each other. The end is provided with a plurality of moving grooves, and a moving block is slidably connected in each moving groove, and a spring is installed between each moving block and the corresponding moving groove. The advantage of the above-mentioned CNC cutting machine anti-collision device is that it can automatically brake the two sliding blocks before they are about to contact, avoiding damage caused by collision between the two. The degree of automation and sensitivity are both high, and when braking, a light signal can be emitted at the same time to prompt the operator to shut down the CNC cutting machine in time and perform maintenance operations on it.

[0003] However, when the anti-collision device for the CNC cutting machine is used, the cutting depth is not controlled, which may damage the cutting blade on the CNC cutting machine, thereby failing to protect the CNC cutting machine. Summary of the invention

[0004] In order to solve the technical problem that the cutting depth of the existing CNC cutting machine anti-collision device is not controlled when in use, thereby causing damage to the cutting blade of the CNC cutting machine, the utility model provides a CNC cutting machine anti-collision device, which limits the cutting blade of the CNC cutting machine by means of an extrusion pad, thereby preventing the cutting blade from colliding with the object to be cut or other objects during cutting and causing damage.

[0005] The utility model provides an anti-collision device for a numerically controlled cutting machine, wherein a cutting blade is movably arranged on the numerically controlled cutting machine, and the anti-collision device comprises a supporting protrusion block, a strip plate, an extrusion pad and a connecting plate, wherein the supporting protrusion block is arranged on the casing of the numerically controlled cutting machine and is located on the side of the cutting blade, the strip plate is slidably arranged in the supporting protrusion block, the extrusion pad is arranged at the bottom of the strip plate and is located below the supporting protrusion block, a limiting rod and a reset spring are arranged on one side of the connecting plate, a plurality of first limiting through holes are arranged on the strip plate and the plurality of first limiting through holes extend along the height direction of the strip plate, a second limiting through hole is arranged on the supporting protrusion block, a free end of the limiting rod passes through the second limiting through hole to one of the first limiting through holes, and a free end of the reset spring is fixedly connected to an end face of the supporting protrusion block close to the connecting plate. The staff pulls the connecting plate so that the free end of the limiting rod moves out of one of the first limiting through holes to the second limiting through hole. At this time, the staff can slide the strip plate to drive the extrusion pad to move. After determining the position of the extrusion pad, the staff releases the connecting plate. Under the elastic force of the reset spring, the connecting plate moves back to the initial position, and the free end of the limiting rod can slide and pass through the second limiting through hole again to the other first limiting through hole, thereby fixing the strip plate.

[0006] Furthermore, the anti-collision device further comprises a first handle, which is arranged on the top of the strip plate and above the supporting protrusion block. The first handle is arranged to facilitate the sliding of the strip plate.

[0007] Furthermore, the anti-collision device further includes a second handle, which is arranged on the other side of the connecting plate away from the limiting rod. The second handle is arranged to facilitate the movement of the connecting plate.

[0008] Furthermore, the supporting protrusion block is provided with a strip hole, and the strip plate passes through the strip hole and can slide in the strip hole. By providing the strip hole on the supporting protrusion block, the strip plate can slide on the supporting protrusion block.

[0009] Furthermore, the anti-collision device also includes an operating table and a clamping assembly, the CNC cutting machine is arranged on the top of the operating table, the cutting blade and the pressing pad are both located above the operating table, the clamping assembly includes two clamping plates, the two clamping plates are relatively slidably arranged on the top of the operating table, and the cutting blade is located between the two clamping plates. After the object to be cut is placed on the operating table, the two clamping plates slide relatively to clamp the object to be cut, thereby facilitating the centering of the object to be cut and facilitating manual operation by the staff.

[0010] Furthermore, the clamping assembly also includes a bidirectional threaded rod, two sliding plates, and a sliding rod. The bidirectional threaded rod is rotatably arranged at the bottom of the operating table. The two sliding plates are threadedly connected to the two ends of the bidirectional threaded rod and the two sliding plates can move relatively. Two sliding grooves are relatively arranged on the operating table and each sliding groove extends along the width direction of the operating table. Each sliding plate is fixedly connected to one end of the sliding rod, and the other end of each sliding rod is fixedly connected to the clamping plate through the sliding groove. After the bidirectional threaded rod rotates, the two sliding plates are driven to move relatively on the outer surface of the bidirectional threaded rod, and the two sliding rods are caused to slide inside the two sliding grooves, thereby driving the two clamping plates to slide relatively to achieve clamping of the object to be cut.

[0011] Furthermore, the clamping assembly also includes a motor, a first pulley, a second pulley, a belt and two support plates, the motor is arranged at the bottom of the operating table, the output shaft of the motor is fixedly connected to the first pulley, the second pulley is rotatably arranged at the bottom of the operating table, the belt is sleeved on the first pulley and the second pulley, the two support plates are relatively arranged at the bottom of the operating table and the two sliding slots are located between the two support plates, each of the support plates is provided with a support hole, one end of the bidirectional threaded rod is passed through one of the support holes, the other end of the bidirectional threaded rod passes through the other support hole and is fixedly connected to the second pulley. When the motor is started, the motor drives the first pulley to rotate, thereby driving the belt and the second pulley to rotate, and realizing driving the two ends of the bidirectional threaded rod to rotate on the support holes of the two support plates.

[0012] Furthermore, the operating table is also provided with a cutting strip hole, the cutting strip hole extending along the length direction of the operating table, the cutting strip hole being located below the cutting blade and the extrusion pad, and the width of the cutting strip hole being smaller than the width of the extrusion pad. When the CNC cutting machine is started, the cutting blade is driven to cut the object to be cut, and the waste generated by the cutting can be discharged through the cutting strip hole.

[0013] Furthermore, two return springs are provided, and the limit rod is located between the two return springs. Two return springs are provided, so that the connecting plate is more stable when moving.

[0014] Compared with the prior art, the utility model has the following technical effects:

[0015] 1. When the CNC cutting machine is cutting an object to be cut, the extrusion pad can be pressed on the top of the object to be cut (the extrusion pad can also be pressed on a certain part of other objects), and the extrusion pad limits the downward position of the cutting blade to prevent the cutting blade of the CNC cutting machine from overcutting. The CNC cutting machine anti-collision device of the utility model limits the cutting blade of the CNC cutting machine by the extrusion pad, thereby preventing the cutting blade from colliding with the object to be cut or other objects during cutting and causing damage.

[0016] 2. After placing the object to be cut on the operating table, the staff can manually adjust the position of the object to be cut, and then the two clamping plates slide relative to each other to clamp the object to be cut, thereby facilitating the centering of the object to be cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a CNC cutting machine anti-collision device of the utility model. Figure 1 ;

[0018] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of a CNC cutting machine anti-collision device of the utility model. Figure 3 ;

[0020] The reference numerals in the accompanying drawings are:

[0021] 1. CNC cutting machine; 11. Cutting disc;

[0022] 2. Support the raised block;

[0023] 3. Strip plate; 31. First limit through hole;

[0024] 4. Squeeze pad;

[0025] 5. Connecting plate; 51. Limiting rod; 52. Return spring; 6. First handle; 7. Second handle;

[0026] 8. Clamping assembly; 81. Clamping plate; 82. Bidirectional threaded rod; 83. Sliding plate; 84. Sliding rod; 85. Motor; 86. First pulley; 87. Second pulley; 88. Belt; 89. Support plate;

[0027] 9. Operating table; 91. Sliding slotting; 92. Cutting strip holes. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figures 1 to 3 As shown, a CNC cutting machine anti-collision device, the CNC cutting machine 1 is movably provided with a cutting blade 11. The structure of the CNC cutting machine 1 is prior art and will not be described in detail here. When the CNC cutting machine 1 is started, the cutting blade 11 will be driven to rotate to cut the object; the CNC cutting machine 1 will also drive the cutting blade 11 to move according to the size of the object to cut a certain part of the object according to the demand.

[0030] The anti-collision device includes a supporting protrusion block 2, a strip plate 3, an extrusion pad 4 and a connecting plate 5. The supporting protrusion block 2 is arranged on the housing of the CNC cutting machine 1 and is located on the side of the cutting blade 11. The strip plate 3 is slidably arranged in the supporting protrusion block 2. The extrusion pad 4 is arranged at the bottom of the strip plate 3 and is located below the supporting protrusion block 2. A limiting rod 51 and a reset spring 52 are arranged on one side of the connecting plate 5. A plurality of first limiting through holes 31 are arranged on the strip plate 3 and the plurality of first limiting through holes 31 extend along the height direction of the strip plate 3. A second limiting through hole is arranged on the supporting protrusion block 2. The free end of the limiting rod 51 passes through the second limiting through hole to one of the first limiting through holes 31. The free end of the reset spring 52 is fixedly connected to the end face of the supporting protrusion block 2 close to the connecting plate 5.

[0031] The CNC cutting machine 1 of this embodiment is started, and before the cutting blade 11 is driven to cut the object to be cut, the position of the squeezing pad 4 is adjusted according to the size of the object to be cut. The staff pulls the connecting plate 5 so that the free end of the limiting rod 51 moves out of one of the first limiting through holes 31 to the second limiting through hole. At this time, the staff can slide the strip plate 3 (the strip plate 3 slides inside the supporting protrusion block 2) to drive the squeezing pad 4 to move. After determining the position of the squeezing pad 4, the staff releases the connecting plate 5 again. Under the elastic force of the reset spring 52, the connecting plate 5 moves back to the initial position, and the free end of the limiting rod 51 can slide and pass through the second limiting through hole again to the other first limiting through hole 31, thereby fixing the strip plate 3, that is, the position of the squeezing pad 4 is fixed. When the CNC cutting machine 1 cuts the object to be cut, the pressing pad 4 can be pressed on the top of the object to be cut (the pressing pad 4 can also be pressed on a certain part of other objects), and the pressing pad 4 limits the downward position of the cutting blade 11 to prevent the cutting blade 11 of the CNC cutting machine 1 from overcutting. The CNC cutting machine anti-collision device of this embodiment limits the cutting blade 11 of the CNC cutting machine 1 by the pressing pad 4, thereby preventing the cutting blade 11 from colliding with the object to be cut or other objects during cutting and causing damage.

[0032] As an implementation method, the anti-collision device further includes a first handle 6, which is arranged on the top of the strip plate 3 and above the supporting protrusion block 2. The first handle 6 is arranged to facilitate the sliding of the strip plate 3.

[0033] As an implementable embodiment, the anti-collision device further includes a second handle 7, and the second handle 7 is arranged on the other side of the connecting plate 5 away from the limiting rod 51. The second handle 7 is arranged to facilitate the movement of the connecting plate 5.

[0034] As an implementation method, the support protrusion block 2 is provided with a strip hole, and the strip plate 3 passes through the strip hole and can slide in the strip hole. By providing the strip hole on the support protrusion block 2, the strip plate 3 can slide on the support protrusion block 2, that is, the strip plate 3 can slide inside the support protrusion block 2.

[0035] As an implementation method, two return springs 52 are provided, and the limit rod 51 is located between the two return springs 52. Two return springs 52 are provided, so that the connecting plate 5 is more stable when moving.

[0036] The existing anti-collision device of the CNC cutting machine requires the staff to manually adjust the object to be cut when centering the object to be cut, but it is inconvenient for the staff to manually adjust the object to be cut.

[0037] The anti-collision device also includes an operating table 9 and a clamping assembly 8. The CNC cutting machine 1 is arranged on the top of the operating table 9. The cutting blade 11 and the extrusion pad 4 are both located above the operating table 9. The clamping assembly 8 includes two clamping plates 81. The two clamping plates 81 are relatively slidably arranged on the top of the operating table 9, and the cutting blade 11 is located between the two clamping plates 81. The operating table 9 plays a supporting role. Among them, the two clamping plates 81 slide relatively in the width direction of the operating table 9. After placing the object to be cut on the operating table 9, the staff can manually adjust the position of the object to be cut, and then the two clamping plates 81 slide relatively to clamp the object to be cut, so as to facilitate the centering of the object to be cut.

[0038] As an implementation scheme, the clamping assembly 8 also includes a bidirectional threaded rod 82 and two sliding plates 83 and a sliding rod 84. The bidirectional threaded rod 82 is rotatably set at the bottom of the operating table 9. The two sliding plates 83 are threadedly connected to the two ends of the bidirectional threaded rod 82 and the two sliding plates 83 can move relative to each other. Two sliding grooves 91 are relatively arranged on the operating table 9 and each sliding groove 91 extends along the width direction of the operating table 9. Each sliding plate 83 is fixedly connected to one end of the sliding rod 84, and the other end of each sliding rod 84 passes through the sliding groove and is fixedly connected to the clamping plate 81. Furthermore, the clamping assembly 8 also includes a motor 85, a first pulley 86, a second pulley 87, a belt 88 and two support plates 89. The motor 85 is arranged at the bottom of the operating table 9, and the output shaft of the motor 85 is fixedly connected to the first pulley 86. The second pulley 87 is rotatably arranged at the bottom of the operating table 9. The belt 88 is sleeved on the first pulley 86 and the second pulley 87. The two support plates 89 are relatively arranged at the bottom of the operating table 9 and the two sliding grooves 91 are located between the two support plates 89. Each of the support plates 89 is provided with a support hole, one end of the bidirectional threaded rod 82 is inserted into one of the support holes, and the other end of the bidirectional threaded rod 82 passes through the other support hole and is fixedly connected to the second pulley 87.

[0039] The motor 85 of this embodiment is powered by an external power supply. When the motor 85 is started, the motor 85 drives the first pulley 86 to rotate, thereby driving the belt 88 and the second pulley 87 to rotate, thereby driving the two ends of the bidirectional threaded rod 82 to rotate on the support holes of the two support plates 89; after the bidirectional threaded rod 82 rotates, it will drive the two sliding plates 83 to move relative to each other on the outer surface of the bidirectional threaded rod 82, and make the two sliding rods 84 slide inside the two sliding grooves, thereby driving the two clamping plates 81 to slide relative to each other to clamp the object to be cut.

[0040] As an implementation method, the operating table 9 is further provided with a cutting strip hole 92, the cutting strip hole 92 extends along the length direction of the operating table 9, the cutting strip hole 92 is located below the cutting blade 11 and the extrusion pad 4, and the width of the cutting strip hole 92 is smaller than the width of the extrusion pad 4. Referring to the figure, the cutting strip hole 92 is also located between the two sliding slots 91. The CNC cutting machine 1 is started, driving the cutting blade 11 to cut the object to be cut, and the waste generated by the cutting can be discharged through the cutting strip hole 92. The width of the cutting strip hole 92 is smaller than the width of the extrusion pad 4, so as to prevent the extrusion pad 4 from moving to the bottom of the operating table 9.

[0041] The working process of the anti-collision device: after the staff manually adjusts the position of the object to be cut above the operating table 9, the motor 85 is started, and the motor 85 drives the first pulley 86 to rotate, thereby driving the belt 88 and the second pulley 87 to rotate, thereby driving the two ends of the bidirectional threaded rod 82 to rotate on the support holes of the two support plates 89; after the bidirectional threaded rod 82 rotates, it will drive the two sliding plates 83 to move relative to each other on the outer surface of the bidirectional threaded rod 82, and make the two sliding rods 84 slide inside the two sliding grooves, thereby driving the two clamping plates 81 to slide relative to each other to clamp the object to be cut.

[0042] According to the size of the object to be cut, adjust the position of the squeeze pad 4. The staff pulls the connecting plate 5 so that the free end of the limit rod 51 moves out of one of the first limit holes 31 to the second limit hole. At this time, the staff can slide the strip plate 3 (the strip plate 3 slides inside the supporting protrusion 2) to drive the squeeze pad 4 to move. After determining the position of the squeeze pad 4, the staff releases the connecting plate 5. Under the elastic force of the reset spring 52, the connecting plate 5 moves back to the initial position, and the free end of the limit rod 51 can slide and pass through the second limit hole again to another first limit hole 31, thereby fixing the strip plate 3, that is, the position of the squeeze pad 4 is limited. After placing the object to be cut on the operating table 9, when the CNC cutting machine 1 cuts the object to be cut, the squeeze pad 4 can be pressed on the top of the object to be cut (the squeeze pad 4 can also be pressed on a certain part of other objects), and the squeeze pad 4 limits the downward position of the cutting blade 11 to prevent the cutting blade 11 of the CNC cutting machine 1 from cutting excessively.

[0043] The embodiments described above are only preferred embodiments of the present invention and are only used to explain the present invention, not to limit the scope of implementation of the present invention. For those skilled in the art, other implementation methods can certainly be easily made by replacement or modification based on the technical contents disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A collision prevention device for a numerically controlled cutting machine, wherein a cutting blade (11) is movably arranged on the numerically controlled cutting machine (1), characterized in that: The anti-collision device comprises a supporting protrusion block (2), a strip plate (3), a compression pad (4) and a connecting plate (5); the supporting protrusion block (2) is arranged on the housing of the CNC cutting machine (1) and is located on the side of the cutting blade (11); the strip plate (3) is slidably arranged in the supporting protrusion block (2); the compression pad (4) is arranged at the bottom of the strip plate (3) and is located below the supporting protrusion block (2); and a limit rod (51) and a pressure pad (52) are arranged on one side of the connecting plate (5). A return spring (52), the strip plate (3) is provided with a plurality of first limit through holes (31) and the plurality of first limit through holes (31) extend along the height direction of the strip plate (3), the support protrusion block (2) is provided with a second limit through hole, the free end of the limit rod (51) passes through the second limit through hole to one of the first limit through holes (31), and the free end of the return spring (52) is fixedly connected to the end surface of the support protrusion block (2) close to the connecting plate (5).

2. The anti-collision device for a CNC cutting machine according to claim 1, characterized in that: The anti-collision device further comprises a first handle (6), wherein the first handle (6) is arranged on the top of the strip plate (3) and is located above the supporting protruding block (2).

3. The anti-collision device for a CNC cutting machine according to claim 1, characterized in that: The anti-collision device further comprises a second handle (7), wherein the second handle (7) is arranged on the other side of the connecting plate (5) away from the limiting rod (51).

4. The anti-collision device for a CNC cutting machine according to claim 1, characterized in that: The supporting protruding block (2) is provided with a strip hole, and the strip plate (3) passes through the strip hole and can slide in the strip hole.

5. The anti-collision device for a CNC cutting machine according to claim 1, characterized in that: The anti-collision device further comprises an operating table (9) and a clamping assembly (8), wherein the CNC cutting machine (1) is arranged on the top of the operating table (9), the cutting blade (11) and the pressing pad (4) are both located above the operating table (9), and the clamping assembly (8) comprises two clamping plates (81), wherein the two clamping plates (81) are relatively slidably arranged on the top of the operating table (9), and the cutting blade (11) is located between the two clamping plates (81).

6. The anti-collision device for a CNC cutting machine according to claim 5, characterized in that: The clamping assembly (8) further comprises a bidirectional threaded rod (82), two sliding plates (83) and a sliding rod (84); the bidirectional threaded rod (82) is rotatably arranged at the bottom of the operating table (9); the two sliding plates (83) are threadedly connected to the two ends of the bidirectional threaded rod (82) and the two sliding plates (83) can move relative to each other; two sliding slots (91) are arranged on the operating table (9) in opposite directions and each sliding slot (91) extends along the width direction of the operating table (9); each sliding plate (83) is fixedly connected to one end of the sliding rod (84); and the other end of each sliding rod (84) passes through the sliding groove and is fixedly connected to the clamping plate (81).

7. The anti-collision device for a CNC cutting machine according to claim 6, characterized in that: The clamping assembly (8) further comprises a motor (85), a first pulley (86), a second pulley (87), a belt (88) and two support plates (89), wherein the motor (85) is arranged at the bottom of the operating table (9), the output shaft of the motor (85) is fixedly connected to the first pulley (86), the second pulley (87) is rotatably arranged at the bottom of the operating table (9), the belt (88) is sleeved on the first pulley (86) and the second pulley (87), the two support plates (89) are arranged at the bottom of the operating table (9) relative to each other, and the two sliding slots (91) are located between the two support plates (89), each support plate (89) is provided with a support hole, one end of the bidirectional threaded rod (82) is inserted into one of the support holes, and the other end of the bidirectional threaded rod (82) passes through the other support hole and is fixedly connected to the second pulley (87).

8. The anti-collision device for a CNC cutting machine according to claim 5, characterized in that: The operating table (9) is also provided with a cutting strip hole (92), the cutting strip hole (92) extending along the length direction of the operating table (9), the cutting strip hole (92) being located below the cutting blade (11) and the pressing pad (4), and the width of the cutting strip hole (92) being smaller than the width of the pressing pad (4).

9. The anti-collision device for a CNC cutting machine according to claim 1, characterized in that: Two return springs (52) are provided, and the limiting rod (51) is located between the two return springs (52).

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