A pneumatic v-grooving tool

Abstract

The utility model discloses a pneumatic V groove cutter, including the cylinder, the cutting seat is provided with in the cylinder downside, the cutting seat is slidably connected with two left and right symmetrical setting blade fixed blocks, two the blade fixed blocks are V-shaped settings, two the blade fixed blocks's opposite sides all are provided with the blade, the left and right sides of cutting seat symmetry is provided with the opening of making two blade cutting seat upwardly protruding, the cylinder is provided with the pneumatic assembly of driving two blade fixed blocks synchronous downward sliding, the cutting seat is provided with the blade retraction assembly of driving two blade cutting seat synchronous upward sliding, the utility model adopts the transmission mode of pneumatic piston, lifting piece, rack and pinion, makes left and right blade fixed blocks obtain synchronous, equal displacement's downslide movement, fundamentally eliminates the partial cutting problem of traditional one side or asymmetric drive, and the geometric consistency and yield of V groove processing have been improved significantly.

Description

Technical Field

[0001] This utility model belongs to the field of grooving tool technology and relates to a pneumatic V-groove tool. Background Technology

[0002] In the existing field of grooving and chamfering, V-groove cutters are essential tools for edge processing of sheet metal, panels, and thin-walled components, widely used in woodworking, aluminum profile processing, composite material processing, furniture manufacturing, and sheet metal bending preparatory processes. Traditional V-groove processing equipment mainly includes manual tool holders, mechanical tools driven by cam / linkage mechanisms or motor-screw drives, and a small number of specialized devices using hydraulic or pneumatic units. These existing technologies often have a structure biased towards single-sided blades or asymmetrical drives, with blade extension and retraction relying on manual fine-tuning or simple mechanical limits. This results in significant problems such as insufficient repeatability and poor processing consistency when batch processing or integrated with production lines.

[0003] Chinese utility model patent CN223084903U discloses a pneumatic double V-groove cutter, comprising a rotating cylinder with a base connected to its bottom. Two sets of vibrating cutter mechanisms are symmetrically mounted on both sides of the base. Each vibrating cutter mechanism includes a linear guide rail inclined to the side of the base, a cutter holder slidably mounted on the linear guide rail, and a drive unit mounted on the base. Blades are mounted on the bottom of the cutter holder, and the blades of the two sets of vibrating cutter mechanisms are arranged in a V-shape. By symmetrically mounting two sets of vibrating cutter mechanisms on both sides of the base at the bottom of the rotating cylinder, with the blades of the two sets arranged in a V-shape, the two sets of vibrating cutter mechanisms are integrated into one unit. The cutting of V-grooves can be completed in one direction, resulting in high cutting speed, high efficiency, simple structure, small size, easy control, and low manufacturing cost. The above technical solution uses linear guides to directly drive the tool holder. In actual use, it is difficult to achieve precise synchronization between the two sides of the blade. Especially when the workpiece material is thin or there is a slight deviation in the initial position of the tool, it is easy to overcut on one side and undercut on the other side, which will affect the workpiece yield. Furthermore, the design of the linear guides and electrical PLC makes it difficult to achieve seamless integration with the PLC system and fault self-diagnosis, which hinders the quality control of mass production. Utility Model Content

[0004] The aforementioned method of directly driving the tool holder with a linear guide rail suffers from difficulties in achieving precise synchronization between the two sides of the blade during actual use. This is especially problematic when the workpiece material is thin or the initial tool position has slight deviations, easily leading to overcutting on one side and undercutting on the other, thus affecting the workpiece yield. Furthermore, the design of the linear guide rail and electrical PLC makes seamless integration with the PLC system and fault self-diagnosis difficult, hindering quality control in mass production. This invention proposes a pneumatic V-groove tool, which effectively solves the problems of the existing technology where the tool holder is directly driven by a linear guide rail. The aforementioned method of directly driving the tool holder with a linear guide rail suffers from difficulties in achieving precise synchronization between the two sides of the blade during actual use, especially when the workpiece material is thin or the initial tool position has slight deviations, easily leading to overcutting on one side and undercutting on the other, thus affecting the workpiece yield. Furthermore, the aforementioned design of the linear guide rail and electrical PLC makes seamless integration with the PLC system and fault self-diagnosis difficult, hindering quality control in mass production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pneumatic V-groove cutter, comprising a cylindrical body, a cutting seat provided on the lower side of the cylindrical body, two blade fixing blocks slidably connected inside the cutting seat, the two blade fixing blocks being arranged in a V-shape, blades being provided on opposite sides of the two blade fixing blocks, openings symmetrically provided on the left and right sides of the cutting seat for the two blade cutting seats to extend upward, a pneumatic assembly for driving the two blade fixing blocks to slide downward synchronously inside the cylindrical body, and a blade retraction assembly for driving the two blade cutting seats to slide upward synchronously inside the cutting seat.

[0006] Furthermore, the pneumatic assembly includes an air nozzle disposed on the upper side of the cylinder, a piston chamber is provided inside the cylinder, the piston chamber and the air nozzle are connected through an air passage, a piston is slidably connected in the piston chamber, a lifting block is provided at the lower end of the piston, lifting racks are symmetrically arranged on the left and right sides of the circumference of the lifting block, sliding racks are provided on the sides of the blade fixing block facing the lifting block, and two sets of transmission assemblies for transmission are symmetrically arranged on the left and right sides inside the cutting seat.

[0007] Furthermore, the transmission assembly includes a first gear and a second gear rotatably connected within the cutting seat, wherein the first gear meshes with the second gear and the lifting rack, and the second gear meshes with the first gear and the sliding rack.

[0008] Furthermore, the retractable blade assembly includes a guide post disposed on the lower side of the inside of the cutting seat, a spring groove is provided on the lower side of the lifting block, the guide post is inserted into the spring groove, a spring is sleeved on the guide post, and the upper end of the spring abuts against the upper side of the spring groove.

[0009] Furthermore, a rubber sealing gasket is provided on the circumferential side of the upper end of the piston, which contacts the inner wall of the piston cavity.

[0010] Furthermore, a retaining ring is provided at the connection between the cylinder and the cutting seat.

[0011] Furthermore, a fixing pin is provided between the lower end of the piston and the lifting column for fixed connection.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model adopts a transmission method of pneumatic piston, lifting block, rack and gear, so that the left and right blade fixing blocks can achieve synchronous and equal displacement downward movement, which fundamentally eliminates the problem of bias cutting caused by traditional single-sided or asymmetrical drive, and significantly improves the geometric consistency and yield of V groove processing. (2) This utility model achieves rapid retraction and reset of the blade by using the guide post and spring in the blade retraction assembly, preventing the blade from getting stuck on the outside of the cutting seat and causing damage, thus improving the service life of the blade and improving the reliability and safety of the device during use. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model; Figure 2 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram: 1. Cylinder; 101. Air passage; 102. Piston chamber; 2. Piston; 3. Air nozzle; 4. Lifting block; 5. Fixing pin; 6. First gear; 7. Second gear; 8. Blade fixing block; 9. Blade; 10. Cutting seat; 11. Guide post; 12. Spring; 13. Fixing ring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0016] A pneumatic V-groove cutter includes a cylindrical body 1. A cutting seat 10 is provided on the lower side of the cylindrical body 1. Two blade fixing blocks 8 are slidably connected inside the cutting seat 10, arranged symmetrically on the left and right sides. The two blade fixing blocks 8 are arranged in a V-shape. Blades 9 are provided on the opposite sides of the two blade fixing blocks 8. The left and right sides of the cutting seat 10 are symmetrically provided with openings that allow the two blades 9 to extend upward. A pneumatic assembly is provided inside the cylindrical body 1 to drive the two blade fixing blocks 8 to slide downward synchronously. A blade retraction assembly is provided inside the cutting seat 10 to drive the two blades 9 to slide upward synchronously.

[0017] In this embodiment, the pneumatic assembly includes an air nozzle 3 disposed on the upper side of the cylinder 1. A piston chamber 102 is provided inside the cylinder 1. The piston chamber 102 and the air nozzle 3 are connected through an air passage 101. A piston 2 is slidably connected inside the piston chamber 102. A lifting block 4 is provided at the lower end of the piston 2. Lifting racks are symmetrically arranged on the left and right sides of the circumference of the lifting block 4. Sliding racks are provided on the sides of the blade fixing block 8 facing the lifting block 4. Two sets of transmission components for transmission are symmetrically arranged on the left and right sides inside the cutting seat 10. The air nozzle 3 is connected to an external air source such as an air pump through an air pipe.

[0018] In this embodiment, the transmission assembly includes a first gear 6 and a second gear 7 rotatably connected within the cutting seat 10. The first gear 6 meshes with the second gear 7 and the lifting rack, and the second gear 7 meshes with the first gear 6 and the sliding rack.

[0019] In this embodiment, the shrinking blade assembly includes a guide post 11 disposed on the lower side of the inside of the cutting seat 10. A spring 12 groove is provided on the lower side of the lifting block 4. The guide post 11 is inserted into the spring 12 groove. A spring 12 is sleeved on the guide post 11. The upper end of the spring 12 abuts against the upper side of the spring 12 groove.

[0020] In this embodiment, a rubber sealing gasket is provided on the circumferential side of the upper end of the piston 2, which contacts the inner wall of the piston cavity 102.

[0021] In this embodiment, a fixing ring 13 is provided at the connection between the cylinder 1 and the cutting seat 10.

[0022] In this embodiment, a fixing pin 5 is provided between the lower end of the piston 2 and the lifting column for fixed connection.

[0023] When using the above embodiments When the cutting action is started, the external air source enters the piston chamber 102 through the air nozzle 3 and the air passage 101 at the set pressure, thereby pushing the piston 2 to move axially downward. When the piston 2 moves downward, the lifting block 4 at the lower end of the piston 2 moves downward with the piston 2. When the lifting block 4 moves downward, the lifting rack on the side of the lifting block 4 meshes with the first gear 6 in the cutting seat 10 and drives the first gear 6 to rotate. When the first gear 6 rotates, it can drive the second gear 7 to rotate synchronously. Since the second gear 7 meshes with the blade fixing block 8, when the second gear 7 rotates, it can drive the left and right blade fixing blocks 8 to slide down synchronously in the cutting seat 10, so that the blade 9 extends out of the lower side of the cutting seat 10 to perform cutting and grooving operations. The linear displacement of the lifting block 4 is converted into the synchronous sliding of the left and right blade fixing blocks 8 through the transmission component. After cutting is completed, when the air source is cut off, the spring 12 on the guide column 11 pushes the lifting block 4 to move upward along the axis. When the lifting block 4 moves upward, it can make the blade fixing block 8 slide in the opposite direction through the rotating component, so that the blade 9 is returned to the cutting seat 10, thereby realizing the reliable return of the blade 9 and anti-pinch protection.

[0024] The above embodiment uses a pneumatic piston 2, lifting block 4, rack and pinion, and gear transmission method to enable the left and right blade fixing blocks 8 to achieve synchronous and equal displacement downward movement, which fundamentally eliminates the off-cutting problem caused by traditional single-sided or asymmetrical drive, and significantly improves the geometric consistency and yield of V-groove machining. The above embodiment achieves rapid retraction and reset of the blade 9 through the guide post 11 and spring 12 in the blade retraction assembly, preventing the blade 9 from getting stuck on the outside of the cutting seat 10 and causing damage, thereby improving the service life of the blade 9 and improving the reliability and safety of the device during use.

[0025] Example 2 differs from Example 1 in that: Based on Embodiment 1, an adjustable wedge-shaped adjustment block with locking bolts is provided on the outside of the blade fixing block 8. A scale or angle positioning pin is provided between the adjustment block and the blade fixing block 8. At the same time, a travel limit screw or travel switch is provided on the lifting block 4 to precisely limit the maximum downward movement of the blade 9, thereby realizing the rapid switching of different V angles and cutting depths. This makes the technical solution applicable to the processing of plates of different thicknesses and materials, and facilitates rapid on-site debugging.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic V-groove cutter, comprising a cylindrical body (1), wherein a cutting seat (10) is provided on the lower side of the cylindrical body (1), characterized in that: The cutting seat (10) is slidably connected to two symmetrically arranged blade fixing blocks (8). The two blade fixing blocks (8) are arranged in a V shape. Blades (9) are provided on the opposite sides of the two blade fixing blocks (8). The left and right sides of the cutting seat (10) are symmetrically arranged with openings that allow the two blades (9) to extend upward from the cutting seat (10). The cylinder (1) is provided with a pneumatic assembly that drives the two blade fixing blocks (8) to slide downward synchronously. The cutting seat (10) is provided with a blade retraction assembly that drives the two blades (9) to slide upward synchronously from the cutting seat (10).

2. A pneumatic V-groove cutter according to claim 1, characterized in that: The pneumatic assembly includes an air nozzle (3) disposed on the upper side of the cylinder (1). A piston chamber (102) is provided inside the cylinder (1). The piston chamber (102) and the air nozzle (3) are connected through an air passage (101). A piston (2) is slidably connected inside the piston chamber (102). A lifting block (4) is provided at the lower end of the piston (2). Lifting racks are symmetrically arranged on the left and right sides of the circumference of the lifting block (4). Sliding racks are provided on the sides of the blade fixing block (8) facing the lifting block (4). Two sets of transmission components for transmission are symmetrically arranged on the left and right sides inside the cutting seat (10).

3. A pneumatic V-groove cutter according to claim 2, characterized in that: The transmission assembly includes a first gear (6) and a second gear (7) rotatably connected within the cutting seat (10). The first gear (6) meshes with the second gear (7) and the lifting rack, and the second gear (7) meshes with the first gear (6) and the sliding rack.

4. A pneumatic V-groove cutter according to claim 2, characterized in that: The shrinking blade assembly includes a guide post (11) disposed on the lower side inside the cutting seat (10). The lower side of the lifting block (4) is provided with a spring (12) groove. The guide post (11) is inserted into the spring (12) groove. The spring (12) is sleeved on the guide post (11). The upper end of the spring (12) abuts against the upper side of the spring (12) groove.

5. A pneumatic V-groove cutter according to claim 2, characterized in that: The piston (2) has a rubber sealing gasket on its upper circumferential side that contacts the inner wall of the piston cavity (102).

6. A pneumatic V-groove cutter according to claim 1, characterized in that: A fixing ring (13) is provided at the connection between the cylinder (1) and the cutting seat (10).

7. A pneumatic V-groove cutter according to claim 2, characterized in that: The piston (2) is fixedly connected to the lifting column by a fixing pin (5) at its lower end.

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