Fool-proof R-shaped grooving cutter with adjustable structure

Abstract

The utility model relates to the technical field of machining cutters, and discloses a fool-proof adjustable structure R-shaped grooving cutter which comprises a grooving cutter bar and an R arc-shaped cutter blade, a pressing plate is arranged at the top of one end of the grooving cutter bar, the R arc-shaped cutter blade is arranged between the pressing plate and the grooving cutter bar, an adjusting groove is formed in the position, located on one side of the pressing plate, in the grooving cutter bar, and the adjusting groove is arranged in the groove cutter bar. The center size of the cutter can be adjusted through cooperation of the pressing screw, the adjusting screw and the trapezoidal cutter block, when the pressing screw is screwed, the center of the cutter deviates leftwards, the cutter is clamped in the adjusting groove, the cutter is clamped in the adjusting groove, the cutter is clamped in the adjusting groove, the cutter is clamped in the adjusting groove, and the cutter is clamped in the adjusting groove. And when the adjusting screw is screwed, the center of the cutter deviates rightwards, so that the service life of the cutter is prolonged, and the machining quality of a workpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining cutters, in particular to an R-shaped groove cutter with an anti-foolproof adjustable structure. Background Art

[0002] R-grooving cutter, also known as internal R milling cutter or reverse R ball cutter. It is mainly suitable for various convex arc surfaces or R-shaped grooves in mechanical processing. These structures often appear in occasions such as automotive hydraulic valve bodies, molds, mechanical parts, etc. that require precise R-shaped surfaces or grooves. For example, in the production of automotive hydraulic valve bodies, R-grooving cutters are needed to process specific arc grooves or back-cut grooves to ensure smooth operation of the valve and good sealing effect.

[0003] After searching, the Chinese utility model patent with the publication number of CN216758199U discloses a quick-change R-groove tool, including a tool bar, a tool head, a convex block, a locking groove, a slide plate, a locking groove, a movable groove, a bearing slider, a reset spring, an eccentric wheel, a toggle block, a placement cavity, a fixed block, a pulling groove, a limit slider, a clamping spring and a limit groove. The utility model improves the efficiency of disassembly and assembly by setting a convex block, a slide plate, an eccentric wheel and a reset spring, and realizes the quick-change assembly of the tool head and the tool bar by adopting the method of extrusion clamping locking. The connection is stable, the operation is simple, the use is convenient, time-saving and labor-saving, the tool changing efficiency is high, and the comprehensive use effect is better. The limit slider, the clamping spring and the limit groove are set to prevent accidental loosening, ensure the stability of the device during use, and improve the anti-interference ability. After the installation is completed, the limit lock can be automatically performed, which is convenient to use and has a better effect.

[0004] In the above technical solution, the quick-change assembly of the cutter head and the tool rod is achieved by squeezing, clamping and locking. However, there is no fool-proof structure during the assembly process, which can easily cause the front and back of the cutter head to be installed upside down, affecting subsequent processing. In addition, the cutter head cannot be adjusted, affecting the service life of the tool. Utility Model Content

[0005] The utility model aims to provide an R-shaped slot cutter with a fool-proof adjustable structure to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an R-type slot cutter with a fool-proof adjustable structure, comprising: a slot cutter rod and an R-arc-shaped blade, a pressure plate is provided on the top of one end of the slot cutter rod, an R-arc-shaped blade is provided between the pressure plate and the slot cutter rod, an adjustment groove is provided inside the slot cutter rod on one side of the pressure plate, a trapezoidal blade block is provided on the top of the adjustment groove, a clamping screw is provided on one side of the adjustment groove of the slot cutter rod, and an adjustment screw is provided on the other side.

[0007] Furthermore, the pressure plate and the groove cutter rod are integrally formed, a clamping groove is provided between the pressure plate and the groove cutter rod, and a triangular anti-foolproof groove is provided at one corner of the clamping groove.

[0008] Furthermore, threaded holes are opened on both sides of the pressure plate, clamping screws are arranged inside the threaded holes, one end of the threaded holes extends to the inside of the groove cutter rod, and one end of the clamping screw is located inside the groove cutter rod.

[0009] Furthermore, one side of the trapezoidal blade block is a rectangular block, one side of the rectangular block is provided with trapezoidal teeth, there are a plurality of the trapezoidal teeth, and the plurality of the trapezoidal teeth are arranged at equal intervals.

[0010] Furthermore, one end of the clamping screw abuts against a side wall of the trapezoidal blade block, and one end of the adjusting screw abuts against another side wall of the trapezoidal blade block.

[0011] Furthermore, the R-arc-shaped blade particles are provided with triangular fool-proof blocks that match the triangular fool-proof grooves.

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

[0013] The utility model realizes that when the R-shaped slot cutter with an anti-foolproof adjustable structure is used, the triangular anti-foolproof groove is provided on the slot cutter shank. When the R-shaped slot cutter is installed, the triangular anti-foolproof groove cooperates with the triangular anti-foolproof block to prevent the front and back sides of the R-shaped slot cutter from being installed reversely, thereby ensuring smooth processing.

[0014] During the workpiece machining process, the center size of the tool has a great influence on the dimensional accuracy of the workpiece. The utility model can adjust the center size of the tool by opening an adjustment slot on the slot cutter arbor and using the cooperation of a clamping screw, an adjusting screw and a trapezoidal tool block. When the clamping screw is tightened, the center of the tool shifts to the left, and when the adjusting screw is tightened, the center of the tool shifts to the right. Through the support of the trapezoidal tool block and the action of multiple trapezoidal teeth on the trapezoidal tool block, the contact area with the slot cutter arbor is increased to ensure the stability of the tool center size after adjustment. The appropriate tool center size can reduce unnecessary stress on the tool, thereby extending its service life. The accurate tool center size helps to improve the finish of the machined surface and reduce subsequent polishing or finishing work, thereby extending the tool life and improving the workpiece machining quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of an R-shaped slot cutter with a foolproof adjustable structure according to the utility model;

[0016] Figure 2 This is a front view of an R-shaped slot cutter with an adjustable structure and a foolproof structure according to the utility model;

[0017] Figure 3 It is a left view of an R-shaped slot cutter with a fool-proof adjustable structure according to the utility model.

[0018] In the figure: 1. Grooving knife bar; 2. Trapezoidal knife block; 3. R-arc knife particles; 4. Clamping screw; 5. Adjusting screw; 6. Pressing plate; 7. Clamping screw; 8. Triangular anti-mistake groove; 9. Adjusting groove; 10. Clamping groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-Figure 3 The utility model provides a technical solution: an R-type slotting cutter with a fool-proof adjustable structure, comprising: a slotting cutter rod 1 and an R-arc-shaped blade particle 3, a pressure plate 6 is provided on the top of one end of the slotting cutter rod 1, an R-arc-shaped blade particle 3 is provided between the pressure plate 6 and the slotting cutter rod 1, an adjusting groove 9 is provided inside the slotting cutter rod 1 on one side of the pressure plate 6, a trapezoidal blade block 2 is provided on the top of the adjusting groove 9, a clamping screw 4 is provided on one side of the adjusting groove 9 of the slotting cutter rod 1, and an adjusting screw 5 is provided on the other side. By using the clamping screw 4, the adjusting screw and the trapezoidal tool block 2, the center size of the tool can be adjusted. When the clamping screw 4 is tightened, the tool center shifts to the left, and when the adjusting screw 5 is tightened, the tool center shifts to the right. Through the support of the trapezoidal tool block 2 and the action of multiple trapezoidal teeth on the trapezoidal tool block 2, the contact area with the groove cutter arbor 1 is increased to ensure the stability of the tool center size after adjustment. The appropriate tool center size can reduce unnecessary stress on the tool, thereby extending its service life. The accurate tool center size helps to improve the finish of the machined surface and reduce subsequent polishing or finishing work, thereby extending the tool life and improving the workpiece processing quality.

[0021] The pressing plate 6 and the groove cutter bar 1 are formed as one piece, a clamping groove 10 is provided between the pressing plate 6 and the groove cutter bar 1, and a triangular anti-fool groove 8 is provided at one corner of the clamping groove 10.

[0022] Threaded holes are provided on both sides of the pressing plate 6, and clamping screws 7 are provided inside the threaded holes. One end of the threaded holes extends to the inside of the slot cutter bar 1, and one end of the clamping screws 7 is located inside the slot cutter bar 1. It is used to clamp and fix the R arc-shaped blade particles.

[0023] One side of the trapezoidal blade block 2 is a rectangular block, and one side of the rectangular block is provided with trapezoidal teeth, and there are a plurality of trapezoidal teeth, which are arranged equidistantly. One end of the clamping screw 4 abuts against the side wall of the trapezoidal blade block 2, and one end of the adjusting screw 5 abuts against the other side wall of the trapezoidal blade block 2. The center size of the tool can be adjusted by the cooperation of the clamping screw 4, the adjusting screw and the trapezoidal blade block 2. When the clamping screw 4 is tightened, the center of the tool shifts to the left, and when the adjusting screw 5 is tightened, the center of the tool shifts to the right. Through the support of the trapezoidal blade block 2 and the action of the multiple trapezoidal teeth on the trapezoidal blade block 2, the contact area with the groove cutter rod 1 is increased, ensuring the stability of the center size of the tool after adjustment.

[0024] The R-shaped blade 3 is provided with a triangular fool-proof block that matches the triangular fool-proof groove 8. When the R-shaped slot cutter with an adjustable fool-proof structure is used, the triangular fool-proof groove 8 provided on the slot cutter bar 1 prevents the R-shaped blade 3 from being installed upside down through the cooperation of the triangular fool-proof groove 8 and the triangular fool-proof block, thereby ensuring smooth processing;

[0025] During the workpiece machining process, the center size of the tool has a great influence on the dimensional accuracy of the workpiece. The utility model opens an adjustment slot on the slot cutter arbor 1 and uses the clamping screw 4, the adjusting screw and the trapezoidal tool block 2 to adjust the center size of the tool. When the clamping screw 4 is tightened, the tool center shifts to the left, and when the adjusting screw 5 is tightened, the tool center shifts to the right. Through the support of the trapezoidal tool block 2 and the action of multiple trapezoidal teeth on the trapezoidal tool block 2, the contact area with the slot cutter arbor 1 is increased to ensure the stability of the tool center size after adjustment. The appropriate tool center size can reduce unnecessary stress on the tool, thereby extending its service life. The accurate tool center size helps to improve the finish of the machined surface and reduce subsequent polishing or finishing work, thereby extending the tool life and improving the workpiece machining quality.

[0026] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A foolproof adjustable R-shaped slot cutter, comprising: A groove cutter bar (1) and an R-arc-shaped blade (3), characterized in that: a pressure plate (6) is provided at the top of one end of the groove cutter bar (1), an R-arc-shaped blade (3) is provided between the pressure plate (6) and the groove cutter bar (1), an adjustment groove (9) is provided inside the groove cutter bar (1) on one side of the pressure plate (6), a trapezoidal blade block (2) is provided at the top of the adjustment groove (9), a clamping screw (4) is provided on one side of the adjustment groove (9) of the groove cutter bar (1), and an adjustment screw (5) is provided on the other side.

2. The R-shaped slot cutter with a foolproof adjustable structure according to claim 1, characterized in that: The pressing plate (6) and the slotting knife rod (1) are integrally formed, a clamping groove (10) is provided between the pressing plate (6) and the slotting knife rod (1), and a triangular anti-mistake groove (8) is provided at one corner of the clamping groove (10).

3. The R-shaped slot cutter with a foolproof adjustable structure according to claim 2, characterized in that: Threaded holes are provided on both sides of the pressure plate (6), and clamping screws (7) are provided inside the threaded holes. One end of the threaded holes extends to the inside of the groove cutter rod (1), and one end of the clamping screw (7) is located inside the groove cutter rod (1).

4. The R-shaped slot cutter with a foolproof adjustable structure according to claim 1, characterized in that: One side of the trapezoidal blade block (2) is a rectangular block, one side of the rectangular block is provided with trapezoidal teeth, there are a plurality of the trapezoidal teeth, and the plurality of the trapezoidal teeth are arranged at equal distances.

5. The R-shaped slot cutter with a foolproof adjustable structure according to claim 4, characterized in that: One end of the clamping screw (4) abuts against the side wall of the trapezoidal blade block (2), and one end of the adjusting screw (5) abuts against the other side wall of the trapezoidal blade block (2).

6. The R-shaped slot cutter with a foolproof adjustable structure according to claim 2, characterized in that: The R-arc-shaped blade particle (3) is provided with a triangular fool-proof block which matches the triangular fool-proof groove (8).

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