Multifunctional cutter

Abstract

The utility model provides a multifunctional cutter, and belongs to the technical field of machinery. The problem of how to improve the machining efficiency of workpieces is solved. The multifunctional cutter comprises a grooving cutter and a fixed seat, a hole boring cutter is fixedly arranged on the outer wall of the fixed seat, the multifunctional cutter further comprises a sliding seat which is sleeved and circumferentially positioned outside the fixed seat, a swing rod is arranged in the sliding seat, the middle of the swing rod is hinged to the sliding seat, the front end of the swing rod is connected with the grooving cutter, and the grooving cutter is connected with the sliding seat. An elastic piece which elastically acts on the outer wall of the rear end of the swing rod and enables the front end of the swing rod to have an inward swing trend is arranged in the fixed seat, and the sliding seat can drive the swing rod to slide, so that the fixed seat inwards extrudes the rear end of the swing rod and enables the front end of the swing rod to swing outwards. The multifunctional cutter can improve the machining efficiency of workpieces.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a multifunctional tool. Background Art

[0002] In the prior art, standard workpieces are generally clamped and positioned on a lathe, and are repeatedly turned and milled by a variety of tools to complete the manufacturing process of the workpiece.

[0003] At present, the tools that are widely used on lathes generally include a columnar tool holder, one end of which is connected to the driving motor on the lathe by means of screw connection or clamping with a clamp, and at least one mounting groove is provided on the side wall of the other end, in which a tool body is fixed by screw connection. When the driving motor drives the tool holder to rotate, the tool holder can drive the tool body to rotate together, and then the workpiece or the tool is controlled to be moved so that the workpiece contacts the tool body, thereby realizing the turning and milling of the workpiece.

[0004] However, in actual application, the turning and milling of the workpiece generally requires the cooperation of multiple cutter bodies to complete the processing of the workpiece, such as grooving cutters and boring cutters. The processing steps of the workpiece are sequential. The workpiece needs to be bored before grooving. In this way, the operator needs to install the boring cutter on the tool holder first, and then replace the grooving cutter after the boring work is completed. Therefore, replacing the cutter body in the entire processing process takes up most of the time, which greatly affects the processing efficiency of the workpiece. Summary of the invention

[0005] The purpose of the utility model is to solve the above problems in the prior art and to propose a multifunctional tool. The technical problem to be solved by the utility model is: how to improve the processing efficiency of the workpiece.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a multifunctional tool, comprising a grooving knife and a fixed seat with a boring knife fixed on the outer wall, characterized in that the multifunctional tool also includes a sliding seat which is sleeved and circumferentially positioned outside the fixed seat, a swing rod is provided in the sliding seat, the middle part of which is hinged to the sliding seat, and the front end of the swing rod is connected to the grooving knife, the fixed seat is provided with an elastic member which elastically acts on the outer wall of the rear end of the swing rod and makes the front end of the swing rod have an inward swinging tendency, the sliding seat can drive the swing rod to slide so that the fixed seat squeezes the rear end of the swing rod inward and makes the front end of the swing rod swing outward.

[0007] The working principle of the multifunctional tool is as follows: the fixed seat is connected to the driving motor on the lathe, and the driving motor drives the fixed seat and the sliding seat to rotate synchronously. At this time, the boring tool installed on the outer wall of the fixed seat can bore the workpiece fixed on the lathe as the fixed seat rotates, thereby completing the boring work of the workpiece. After that, the pull rod is pulled backward and drives the sliding seat to move, and the sliding seat drives the swing rod hinged inside it to slide backward together. During this process, the rear end of the swing rod will be subjected to the force from the fixed seat, and this force can continuously squeeze the rear end of the swing rod, so that the swing rod as a whole swings outward around the hinge and positions its front end. At this time, the grooving tool fixed on the outer wall of the front end of the swing rod protrudes from the outer wall of the fixed seat, and the specific protrusion is greater than the protrusion of the boring tool, so that the grooving tool can be used to cut grooves on the workpiece. After that, when the sliding seat When sliding forward to reset, the rear end of the swing arm is separated from the fixed seat. At this time, the elastic member installed in the fixed seat can push the rear end of the swing arm to swing outward around the hinge and tilt up, and at the same time, the front end of the swing arm swings inward and retracts to reset, thereby preventing the grooving knife from being too protruding when boring the next workpiece. Compared with the prior art, the advantage of this application is that the front end of the swing arm is realized by the forward and backward sliding of the sliding seat relative to the fixed seat to realize the inward and outward swinging action of the hinge at the front end of the swing arm, thereby realizing that the grooving knife protrudes more from the outer wall of the fixed seat than the boring knife, or the boring knife protrudes more from the outer wall of the fixed seat than the grooving knife. That is to say, the workpiece is bored when the boring knife is more protruding, and the workpiece is grooved when the grooving knife is more protruding, thereby realizing rapid switching of the two tools, ensuring that the boring and grooving work can be carried out quickly, without the need for time-consuming and labor-intensive repeated replacement of the tool body, and effectively improving the processing efficiency.

[0008] In the above-mentioned multifunctional tool, the fixed seat has a first matching surface in the shape of an inclined plane close to the rear end of the swing rod, and the rear end of the swing rod has a second matching surface in the shape of an inclined plane that can abut against the first matching surface, and the slope of the first matching surface is greater than or less than the first matching surface. When the sliding seat slides backward relative to the fixed seat, the sliding seat can drive the swing rod to move backward together, so that the second matching surface at the rear end of the swing rod can squeeze the first matching surface on the sliding seat, so that the reverse force of the first matching surface acting in the reverse direction on the second matching surface pushes the swing rod around the hinge so that the front end of the swing rod drives the cutting knife to rotate outward.

[0009] In the above multifunctional tool, an L-shaped matching block is screwed on the outer wall of the fixing seat near the rear end, the matching block is located behind the swing rod, and the first matching surface is arranged at the front end of the matching block. In this way, after long-term use of the multifunctional tool, the matching block or the swing rod can be replaced separately to ensure that the swinging range of the grooving knife is not affected by wear, without replacing the fixing seat as a whole, effectively reducing maintenance costs.

[0010] In the above multifunctional tool, a mounting groove having a depth greater than the height of the swing rod is provided on the outer wall of the fixed seat along the length direction, the inner circumferential wall of the sliding seat is fitted with the outer circumferential wall of the fixed seat, the swing rod is embedded in the mounting groove, and the matching block is screwed to the bottom wall of the mounting groove. This arrangement can avoid interference between the matching block and the sliding seat, and between the swing rod and the fixed seat, and at the same time, the sliding direction of the sliding seat can be guided by the fixed seat.

[0011] In the above-mentioned multifunctional tool, a strip hole is provided on the outer side wall of the matching block, and the strip hole is arranged along the length direction of the matching block. The screw is passed through the strip hole and screwed with the fixing seat. Through this arrangement, the matching block can be properly adjusted on the fixing seat, so as to ensure that the matching block can be adapted to the swing rods of different lengths for use. At the same time, the installation position of the matching block can be adjusted after a certain degree of wear occurs on the first matching surface, so as to achieve the purpose of increasing the service life of the matching block.

[0012] In the above-mentioned multifunctional tool, a mounting channel is radially provided in the fixing seat, a plug is detachably connected to the mounting channel, the elastic member is located in the mounting channel and one end is tightly against the plug, and the other end is tightly against the rear end outer wall of the swing rod. The mounting channel is used to limit the circumferential position of the elastic member, and the plug is used to support one end of the elastic member, so that the elastic force of the elastic member can stably act on the outer wall of the swing rod near the rear end.

[0013] In the above-mentioned multifunctional tool, a connecting channel is provided at the rear end of the fixed seat in the axial direction, and a waist-shaped hole communicating with the connecting channel is provided on the outer side wall of the rear end of the fixed seat, and the waist-shaped hole is arranged along the length direction of the fixed seat, and a connecting hole is provided on the outer side wall of the sliding seat. The multifunctional tool also includes a pull rod detachably connected to a pull rod pin on the outer side wall, the pull rod is inserted into the connecting channel, and the pull rod pin passes through the waist-shaped hole and is embedded in the connecting hole. The pull rod is connected to the sliding seat by the pull rod pin in conjunction with the pull rod and the connecting hole to ensure that the pull rod can pull the sliding seat to move, and the moving distance of the pull rod pin is limited by the waist-shaped hole to prevent excessive interference between the first mating surface and the second mating surface.

[0014] In the above-mentioned multifunctional tool, the rear end of the fixed seat has a connecting flange protruding outward along the circumferential direction, the outer edge of the sliding seat has abutting steps along the circumferential direction, the outer sleeve of the sliding seat is provided with a guide sleeve abutting against the abutting steps, the connecting flange and the guide sleeve are positioned circumferentially by a plurality of bolts, and each of the bolts is outer-mounted with a reset spring elastically acting between the connecting flange and the guide sleeve. As a specific solution, the guide sleeve is provided with a plurality of positioning holes along the circumferential direction, and the connecting flange is provided with a plurality of threaded holes along the circumferential direction, and the threaded holes correspond to the positions of the positioning holes one by one, the head of the bolt passes through the positioning hole and is screwed to the threaded hole, and the tail of the bolt is abutted against the guide sleeve for positioning, and the reset spring sleeved outside each bolt always applies an elastic force between the guide sleeve and the connecting flange, that is, when the force of pulling the pull rod backward disappears, the elastic force of each reset spring can drive the guide sleeve to push the sliding seat to drive the swing rod to slide and reset.

[0015] Compared with the prior art, this multifunctional tool has the following advantages:

[0016] The grooving knife is installed on a swing rod hinged in the sliding sleeve, so that when the guide rod slides backward, the fixed seat can squeeze the rear end of the swing rod so that the swing rod drives the grooving knife to swing outward around the hinge, and the protrusion of the grooving knife from the outer wall of the fixed seat is greater than the protrusion of the boring knife from the outer wall of the fixed seat. At the same time, when the sliding seat slides forward, the force acting on the rear end of the swing rod disappears, and the elastic member in the fixed seat can push the rear end of the swing rod to swing outward around the hinge, so that the grooving knife fixed to the front end of the swing rod swings inward around the hinge and is retracted, so as to achieve rapid switching of the tool body and realize rapid conversion of boring and grooving operations without frequent and repeated disassembly and assembly of the tool body, thereby effectively improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the multifunctional tool. Figure 1 .

[0018] Figure 2 yes Figure 1 sectional view of .

[0019] Figure 3 yes Figure 1 Cross-sectional view from another perspective.

[0020] Figure 4 This is a schematic diagram of the structure of the multifunctional tool. Figure 2 .

[0021] Figure 5 yes Figure 4 sectional view of .

[0022] Figure 6 yes Figure 4Cross-sectional view from another perspective.

[0023] Figure 7 It is a structural schematic diagram of the fixed seat.

[0024] Figure 8 It is a structural schematic diagram of the sliding seat.

[0025] Fig. 9 It is a structural diagram of the matching block.

[0026] Fig.10 It is a structural diagram of the swing rod.

[0027] In the figure,

[0028] 1. Grooving knife;

[0029] 2. Fixed seat; 21. Boring cutter; 22. Elastic member; 23. First mating surface; 24. Mating block; 241. Strip hole; 25. Mounting groove; 26. Mounting channel; 261. Plug; 27. Connecting channel; 28. Waist-shaped hole; 29. ​​Connecting flange;

[0030] 3. Sliding seat; 31. Swinging rod; 311. Second matching surface; 32. Connecting hole; 33. Guide sleeve; 34. Abutting step;

[0031] 4. Tie rod; 41. Tie rod pin;

[0032] 5. Bolt; 51. Return spring. DETAILED DESCRIPTION

[0033] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0034] like Figure 1 , Figure 4 , Figure 7 as well as Figure 8 As shown, the multifunctional tool comprises a columnar fixed seat 2 and an annular sliding seat 3, the sliding seat 3 is sleeved outside the fixed seat 2 and the circumferential inner wall is in contact with the circumferential outer wall of the fixed seat 2, a long strip-shaped mounting groove 25 is provided on the outer wall of the fixed seat 2 along the length direction, a hinge groove is provided on the inner wall of the sliding seat 3, a hinge shaft is fixed in the hinge groove, two boring knives 21 are fixed to the outer wall of the front end of the fixed seat 2 by screws, and the two boring knives 21 are arranged at intervals along the circumference of the fixed seat 2 ... Fig.10The multifunctional tool also includes a long swing rod 31, the outer wall of the middle part of the swing rod 31 has a hinge part, the swing rod 31 is embedded in the installation groove 25 and is hinged to the hinge shaft in the hinge groove through the hinge part, the front end side wall of the swing rod 31 is screwed and fixed with a groove cutting knife 1, and the rear end of the swing rod 31 is polished to form a first mating surface 23 which is tilted downward from the front end of the swing rod 31 to the rear end of the swing rod 31, combined with Fig. 9 The cam 24 is provided with an L-shaped mating block 24 near the rear end of the fixing seat 2 in the mounting groove 25 by screw threading. The mating block 24 is located behind the swing rod 31 and the front end is polished to form a second mating surface 311 which is inclined upward from the rear end of the mating block 24 to the front end of the mating block 24. It is worth mentioning that the inclination of the first mating surface 23 can be greater than the inclination of the second mating surface 311, or it can be less than the inclination of the second mating surface 311. In addition, a strip hole 241 arranged along the length direction of the mating block 24 is provided on the outer wall of the mating block 24. The screw for fixing the mating block 24 passes through the strip hole 241 and is screwed with the fixing seat 2, so that the mating block 24 is pressed against the bottom wall of the mounting groove 25. In the subsequent maintenance process, if the second mating surface 311 is worn, the worker can loosen the screw to make the mating block 24 slide forward in the mounting groove 25 to adjust the installation position, so as to ensure that the first mating surface 23 and the second mating surface 311 can be matched in place.

[0035] Combination Figure 2 and Figure 5 A mounting channel 26 is vertically opened in the fixing seat 2 near the rear end of the swing rod 31, and a plug 261 is screwed at the bottom of the mounting channel 26 to block the outer end of the mounting channel 26, and an elastic member 22 is built into the mounting channel 26, which is specifically a spring. As an alternative, it can also be an elastic metal sheet. One end of the elastic member 22 is tightly pressed against the plug 261, and the other end extends out of the inner end of the mounting channel 26 and is tightly pressed against the outer side wall of the rear end of the swing rod 31.

[0036] Combination Figure 3 and Figure 6A connecting channel 27 is circumferentially provided at the rear end center of the fixed seat 2, and two symmetrically arranged waist-shaped holes 28 are provided on the outer wall of the fixed seat 2. The two waist-shaped holes 28 are arranged along the length direction of the fixed seat 2 and are connected to the connecting channel 27. Two position connecting holes 32 are provided on the side wall of the sliding seat 3, and the two connecting holes 32 correspond to the positions of the two waist-shaped holes 28 one by one. A pull rod 4 is passed through the connecting channel 27, and an assembly hole is radially provided at one end of the pull rod 4. A pull rod pin 41 is passed through the assembly hole of the pull rod 4, and both ends of the pull rod pin 41 pass through the waist-shaped hole 28 in turn and are embedded in the connecting hole 32. As a further solution, the other end of the pull rod 4 can be pulled by manual control, or a cylinder can be fixed at the rear end of the fixed seat 2, and the pull rod 4 is driven by the driving end of the cylinder.

[0037] In addition, a rest step is provided on the outer edge of the sliding seat 3 in the circumferential direction, and a guide sleeve 33 is provided on the outer sleeve of the sliding seat 3 to rest against the rest step. The outer side wall of the rear end of the fixed seat 2 extends outward along the circumferential direction to form a connecting flange 29. The guide sleeve 33 forms a flange folded outward toward one end of the connecting flange 29, and a plurality of positioning holes are provided on the flange in the circumferential direction. A plurality of threaded holes corresponding to the positions of the positioning holes are provided on the connecting flange 29 in the circumferential direction. A fleshy bolt 5 is provided between the connecting flange 29 and the guide sleeve 33. The tail of each bolt 5 rests against the flange of the guide sleeve 33, and the head passes through the positioning hole and is screwed to the threaded hole. A reset spring 51 is connected to the outer sleeve of each bolt 5, and one end of each reset spring 51 is pressed against the connecting flange 29, and the other end is pressed against the flange of the guide sleeve 33.

[0038] Working principle: Figure 5 and Figure 6 As shown, the pull rod 4 moves backward and drives the sliding seat 3 to slide backward along the outer wall of the fixed seat 2 through the pull rod pin 41, so that the rear end of the swing rod 31 contacts the front end of the matching block 24, and the rear end of the swing rod 31 is pushed to swing downward around the hinge under the cooperation of the first matching surface 23 and the second matching surface 311. At the same time, the front end of the swing rod 31 drives the grooving knife 1 to swing outward around the hinge, so that the protrusion of the grooving knife 1 from the outer wall of the fixed seat 2 is greater than the protrusion of the boring knife 21 from the outer wall of the fixed seat 2. At this time, the fixed seat 2 can groove the workpiece through the grooving knife 1 when it rotates;

[0039] like Figure 2 and Figure 3When the force driving the pull rod 4 to move backward disappears, the reset spring 51 can push the guide sleeve 33, so that the guide sleeve 33 drives the sliding seat 3 to slide forward and reset along the outer wall of the fixed seat 2. At this time, the rear end of the swing rod 31 is separated from the matching block 24, and the elastic member 22 installed in the installation channel 26 pushes the rear end of the swing rod 31 to swing outward around the hinge. At the same time, the front end of the swing rod 31 drives the inner groove to swing and reset around the hinge, so that the protrusion of the groove cutting knife 1 from the outer wall of the fixed seat 2 is smaller than the protrusion of the boring knife 21 from the outer wall of the fixed seat 2. At this time, the fixed seat 2 can bore the workpiece through the boring knife 21 when it rotates.

[0040] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although the present invention uses more terms such as grooving knife 1, fixing seat 2, boring knife 21, elastic member 22, first mating surface 23, mating block 24, strip hole 241, mounting groove 25, mounting channel 26, plug 261, connecting channel 27, waist hole 28, connecting flange 29, sliding seat 3, swing rod 31, second mating surface 311, connecting hole 32, guide sleeve 33, abutting step 34, pull rod 4, pull rod pin 41, bolt 5, reset spring 51, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A multifunctional tool, comprising a grooving tool (1) and a fixing seat (2) on the outer wall of which a boring tool (21) is fixedly arranged, characterized in that: The multifunctional tool further comprises a sliding seat (3) which is sleeved and circumferentially positioned outside the fixed seat (2); a swinging rod (31) is provided in the sliding seat (3) and is hinged to the sliding seat (3) at its middle part; and the front end of the swinging rod (31) is connected to the grooving knife (1); an elastic member (22) is provided in the fixed seat (2) which elastically acts on the outer wall of the rear end of the swinging rod (31) and causes the front end of the swinging rod (31) to have an inward swinging tendency; the sliding seat (3) can drive the swinging rod (31) to slide so that the fixed seat (2) presses the rear end of the swinging rod (31) inward and causes the front end of the swinging rod (31) to swing outward.

2. The multifunctional tool according to claim 1, characterized in that: The fixing seat (2) has a first matching surface (23) in the form of an inclined surface close to the rear end of the swing rod (31), and the rear end of the swing rod (31) has a second matching surface (311) in the form of an inclined surface capable of abutting against the first matching surface (23), and the inclination of the first matching surface (23) is greater than or less than that of the first matching surface (23).

3. The multifunctional tool according to claim 2, characterized in that: An L-shaped matching block (24) is screwed onto the outer wall of the fixing seat (2) near the rear end. The matching block (24) is located behind the swing rod (31), and the first matching surface (23) is arranged at the front end of the matching block (24).

4. The multifunctional tool according to claim 3, characterized in that: The outer wall of the fixed seat (2) is provided with a mounting groove (25) along the length direction, the depth of which is greater than the height of the swing rod (31); the circumferential inner wall of the sliding seat (3) is in contact with the circumferential outer wall of the fixed seat (2); the swing rod (31) is embedded in the mounting groove (25); and the matching block (24) is screwed to the inner bottom wall of the mounting groove (25).

5. The multifunctional tool according to claim 4, characterized in that: The outer wall of the matching block (24) is provided with a strip-shaped hole (241), the strip-shaped hole (241) is arranged along the length direction of the matching block (24), and the screw is passed through the strip-shaped hole (241) and is screwed to the fixing seat (2).

6. The multifunctional tool according to any one of claims 1 to 4, characterized in that: A mounting channel (26) is radially opened in the fixing seat (2), a plug (261) is detachably connected in the mounting channel (26), and the elastic member (22) is located in the mounting channel (26) with one end tightly abutting against the plug (261) and the other end tightly abutting against the outer side wall of the rear end of the swing rod (31).

7. The multifunctional tool according to claim 6, characterized in that: A connecting channel (27) is axially provided at the rear end of the fixed seat (2), and a waist-shaped hole (28) connected to the connecting channel (27) is provided on the outer wall of the rear end of the fixed seat (2), and the waist-shaped hole (28) is arranged along the length direction of the fixed seat (2). A connecting hole (32) is provided on the outer wall of the sliding seat (3). The multifunctional tool also includes a pull rod (4) detachably connected to a pull rod pin (41) on the outer wall, and the pull rod (4) is inserted into the connecting channel (27), and the pull rod pin (41) passes through the waist-shaped hole (28) and is embedded in the connecting hole (32).

8. The multifunctional tool according to claim 7, characterized in that: The rear end of the fixed seat (2) is provided with a connecting flange (29) protruding outward along the circumferential direction, the outer edge of the sliding seat (3) is provided with a supporting step (34) along the circumferential direction, the outer sleeve of the sliding seat (3) is provided with a guide sleeve (33) abutting against the supporting step (34), the connecting flange (29) and the guide sleeve (33) are circumferentially positioned by a plurality of bolts (5), and each of the bolts (5) is outer-mounted with a return spring (51) elastically acting between the connecting flange (29) and the guide sleeve (33).

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