Cutting tool for part machining

Abstract

The utility model relates to a cutting tool for part machining, which belongs to the technical field of machine manufacturing, can quickly replace a cutter, reduces the time required for replacing the cutter, improves the production efficiency, and is better in comprehensive applicability. The L-shaped connecting frame is fixedly welded on the working table, a cutter mounting seat is arranged on the L-shaped connecting frame, and the cutter mounting seat is fixedly connected with the L-shaped connecting frame; the I-shaped positioning pin is fixedly welded in a connecting groove formed in the cutter mounting seat; the three permanent magnets I are bonded in grooves I which are formed in the cutter mounting seat and matched with the cutter mounting seat through a bonding agent; the three permanent magnets II are bonded in grooves II which are formed in the knife handle and matched with the three permanent magnets II through adhesives, and a positioning groove matched with the I-shaped positioning pin is formed in one end of the knife handle.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mechanical manufacturing, in particular to a cutting tool for part machining. BACKGROUND

[0002] It is known that in the precision machining process of medical instrument parts such as orthopedic implants, surgical instruments, minimally invasive interventional devices and the like, the performance of the cutting tool directly affects the machining efficiency, precision and surface quality.

[0003] In the related art, through retrieval, the utility model with the patent publication number CN220740178U discloses a cutting tool for medical instrument part machining, which comprises a bottom plate, a positioning block is installed on the top of the bottom plate, a positioning groove is formed on one side of the positioning block, a plurality of positioning assemblies are arranged in the positioning block, a fixing plate is also installed on the top of the bottom plate, a limiting rod is fixedly connected between the positioning block and the fixing plate, a moving block is sleeved on the outer ring of the limiting rod, and an installation plate is installed on the moving block.

[0004] For the related technologies in the above, the applicant finds that although the existing device can position and fix the workpiece, the fixing is firm during machining, movement is not easy to occur, the drilling machining position is accurate, the depth is easy to control, and the precision of the machined workpiece is high, but the following defects still exist, medical instrument machining usually involves multiple processes such as rough machining, semi-fine machining and fine machining, different tools need to be frequently replaced, the existing device cannot quickly replace the tools, and the tool replacement mode is relatively complex, which seriously affects the machining efficiency and has poor practicability.

[0005] Therefore, we propose a cutting tool for part machining which can quickly replace machining tools. SUMMARY

[0006] The purpose of the utility model is to provide a cutting tool for part machining to solve the problems in the above background technology.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A cutting tool for part machining comprises:

[0009] a workbench;

[0010] an L-shaped connecting frame fixedly welded on the workbench, wherein an tool mounting seat is arranged on the L-shaped connecting frame, and the tool mounting seat is fixedly connected with the L-shaped connecting frame;

[0011] a I-shaped positioning pin fixedly welded in a connecting groove arranged on the tool mounting seat;

[0012] Three permanent magnets one, three permanent magnets one are all bonded in the recess one of the tool mounting seat through the adhesive;

[0013] Three permanent magnets two and the tool handle, three permanent magnets two are all bonded in the recess two of the tool handle through the adhesive, and one end of the tool handle is provided with the positioning groove matched with the I-shaped positioning pin;

[0014] Threaded connecting rod and fastening knob, the threaded connecting rod is arranged in the tool mounting seat, one end of the threaded connecting rod is fixedly connected with the fastening plate, the other end of the threaded connecting rod extends to the outside of the tool mounting seat through the fastening hole arranged on the tool mounting seat, the fastening knob is rotationally arranged on the tool mounting seat, and the fastening knob is screwed with one end of the threaded connecting rod extending to the outside of the tool mounting seat through the thread;

[0015] Workpiece fixing device, the workpiece fixing device is arranged on the workbench, and is used for fixing the workpiece.

[0016] As a further scheme of the utility model: the workpiece fixing device includes a driving motor, a bidirectional threaded rod and two T-shaped sliding blocks, the bidirectional threaded rod is arranged in the workbench, one end of the bidirectional threaded rod is rotationally connected with the workbench, the other end of the bidirectional threaded rod extends to the outside of the workbench through the through hole arranged on the workbench and is concentrically connected with the output shaft of the driving motor, and the two T-shaped sliding blocks are correspondingly arranged on the two ends of the bidirectional threaded rod.

[0017] As a further scheme of the utility model: the abutting plate is provided with anti-skid lines.

[0018] As a further scheme of the utility model: three permanent magnets one are uniformly arranged on the tool mounting seat at 120° equiangular angle, and the positions of the permanent magnets two are matched with the permanent magnets one.

[0019] As a further scheme of the utility model: the bottom of the workbench is fixedly welded with a connecting column, one end of the connecting column away from the workbench is fixedly welded with a supporting disc, and the outside of the supporting disc is sleeved with a rubber sleeve.

[0020] As a further scheme of the utility model: the pitch of the threaded connecting rod and the fastening knob is 1.5-2.5mm, and the rotation angle of the fastening knob is not more than 270°.

[0021] As a further scheme of the utility model: one end of the workbench is fixedly welded with a bearing seat, and a bearing matched with the output shaft of the driving motor is detachably installed in the bearing seat.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] Through the magnetic pole mutual attraction principle of the permanent magnet one and the permanent magnet two, the predetermined positioning function of the tool holder is first realized, then under the guidance of the I-shaped positioning pin, the tool holder can be precisely docked with the tool mounting seat, effectively preventing reverse installation misoperation, then through rotating the fastening knob to drive the threaded connecting rod to axially displace, and then drive the fastening plate to synchronously translate, finally realizing the reliable locking of the tool holder in the tool mounting seat. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall structure schematic view of the utility model;

[0025] Figure 2 It is the structure schematic view of the utility model driving motor, bidirectional threaded rod and T-shaped slider cooperation;

[0026] Figure 3 It is the exploded structure schematic view of the utility model driving motor, bearing seat and bearing cooperation;

[0027] Figure 4 It is the structure schematic view of the utility model tool mounting seat, tool holder and fastening knob cooperation;

[0028] Figure 5 It is the exploded structure schematic view of the utility model tool mounting seat, fastening knob and I-shaped positioning pin cooperation;

[0029] Figure 6 It is the structure schematic view of the utility model tool holder and permanent magnet two cooperation;

[0030] Figure 7 It is the structure schematic view of the utility model connecting column, support disc and rubber sleeve cooperation.

[0031] In the drawing: 1, workbench; 2, L-shaped connecting frame; 3, tool mounting seat; 4, I-shaped positioning pin; 5, permanent magnet one; 6, permanent magnet two; 7, tool holder; 8, threaded connecting rod; 9, fastening knob; 10, fastening plate; 11, driving motor; 12, bidirectional threaded rod; 13, T-shaped slider; 14, abutting plate; 15, connecting column; 16, support disc; 17, rubber sleeve; 18, bearing seat; 19, bearing. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] The application will be further described in detail below with reference to the drawings in the specification.

[0034] Please refer to Figures 1-7 In the embodiment of the utility model, a cutting tool for part machining, comprising:

[0035] Workbench 1;

[0036] L type connecting frame 2, L type connecting frame 2 is fixedly welded on workbench 1, and the L type connecting frame 2 is provided with tool mounting seat 3, and the tool mounting seat 3 is fixedly connected with the L type connecting frame 2;

[0037] I-shaped positioning pin 4, I-shaped positioning pin 4 is fixedly welded in the connecting groove set in tool mounting seat 3;

[0038] Three permanent magnets one 5, three permanent magnets one 5 are all bonded in the recess one set in tool mounting seat 3 through bonding agent;

[0039] Three permanent magnets two 6 and tool handle 7, three permanent magnets two 6 are all bonded in the recess two set in tool handle 7 through bonding agent, and one end of tool handle 7 is provided with the positioning groove matched with I-shaped positioning pin 4;

[0040] Threaded connecting rod 8 and fastening knob 9, threaded connecting rod 8 is arranged in tool mounting seat 3, one end of its threaded connecting rod 8 is fixedly connected with fastening plate 10, the other end of its threaded connecting rod 8 extends to the outside of tool mounting seat 3 through the fastening hole set in tool mounting seat 3, and fastening knob 9 is rotationally arranged on tool mounting seat 3, and the one end of fastening knob 9 extending to the outside of tool mounting seat 3 is screwed with threaded connecting rod 8;

[0041] Workpiece fixing device, workpiece fixing device is arranged on workbench 1, and it is used to fix workpiece.

[0042] The cutting tool for part machining, when the tool needs to be replaced, fastening knob 9 is rotated, thereby driving threaded connecting rod 8 to move axially, and fastening plate 10 fixedly connected with threaded connecting rod 8 moves axially synchronously, through the cooperation of permanent magnet one 5 and permanent magnet two 6, tool handle 7 cannot fall, but the user can easily take down by using a little force, then the user places new tool handle 7 through the magnetic pole mutual attraction principle of permanent magnet one 5 and permanent magnet two 6, first realizes the pre-positioning function of tool handle 7, then under the guidance of I-shaped positioning pin 4, tool handle 7 can be accurately connected with tool mounting seat 3, effectively preventing reverse installation misoperation, then threaded connecting rod 8 is driven to move axially by rotating fastening knob 9, thereby driving fastening plate 10 to move synchronously, finally realizing the reliable locking of tool handle 7 in tool mounting seat 3.

[0043] In Figure 2The workpiece fixing device comprises a driving motor 11, a bidirectional threaded rod 12 and two T-shaped sliding blocks 13. The bidirectional threaded rod 12 is arranged in the workbench 1, one end of the bidirectional threaded rod 12 is rotatably connected with the workbench 1, the other end of the bidirectional threaded rod 12 extends out of the workbench 1 through a through hole formed on the workbench 1 and is concentrically connected with an output shaft of the driving motor 11, and the two T-shaped sliding blocks 13 are slidingly arranged at two ends of the bidirectional threaded rod 12 respectively, and the T-shaped sliding blocks 13 are fixedly connected with abutting plates 14.

[0044] The cutting tool for part machining is started to drive the bidirectional threaded rod 12 to rotate, the T-shaped sliding blocks 13 arranged at two ends of the bidirectional threaded rod 12 are axially moved in opposite directions through the action of the bidirectional threaded rod 12, and the purpose of fixing the workpiece to be machined is achieved.

[0045] In Figure 2 The abutting plate 14 is provided with anti-skid lines.

[0046] The cutting tool for part machining is provided with the structure, and the purpose that the workpiece to be machined is not easily moved is achieved.

[0047] In Figures 5-6 The three permanent magnets one 5 are evenly arranged on the tool mounting seat 3 at an angle of 120°, and the position of the permanent magnet two 6 is matched with the permanent magnet one 5.

[0048] The cutting tool for part machining is provided with the structure, the magnetic forces in three directions are balanced with each other, the tool handle 7 is pulled to the center, and any direction deviation will be corrected by the magnetic force of at least two magnets.

[0049] In Figure 7 The workbench 1 is fixedly welded with a connecting column 15 at the bottom, the connecting column 15 is fixedly welded with a supporting disc 16 away from the workbench 1, and the supporting disc 16 is externally sleeved with a rubber sleeve 17.

[0050] The cutting tool for part machining is provided with the structure, and the purpose that the vibration generated during the working of the tool is reduced is achieved.

[0051] In Figure 5 The screw pitch of the threaded connecting rod 8 and the fastening knob 9 is 1.5-2.5 mm, and the rotation angle of the fastening knob 9 is not more than 270°.

[0052] The cutting tool for part machining, through the design of the threaded connecting rod 8 and the fastening knob 9 with a coarse pitch of 1.5-2.5 mm, cooperates with the rotation angle limit of no more than 270°, realizes the double optimization of quick locking and precise force application, the larger pitch enables larger axial displacement in single rotation, shortens the traditional locking process of multiple rotations to 3 / 4 rotations, and significantly improves the tool changing efficiency.

[0053] In Figure 3 In the embodiment, the driving motor 11, the permanent magnet one 5 and the permanent magnet two 6 are all the commonly known devices purchased from the market and known to the person skilled in the art, which can be customized or selected according to actual needs. Here, we only use them and do not improve their structure and function. Therefore, we will not go into details. The driving motor 11, the permanent magnet one 5 and the permanent magnet two 6 are all provided with a control switch matched therewith. The installation position of the control switch is selected according to actual use requirements, so as to facilitate the operation and control of the operator. The technology is very mature and can be realized.

[0054] The cutting tool for part machining, through the design of the threaded connecting rod 8 and the fastening knob 9 with a coarse pitch of 1.5-2.5 mm, cooperates with the rotation angle limit of no more than 270°, realizes the double optimization of quick locking and precise force application, the larger pitch enables larger axial displacement in single rotation, shortens the traditional locking process of multiple rotations to 3 / 4 rotations, and significantly improves the tool changing efficiency.

[0055] In the embodiment, the driving motor 11, the permanent magnet one 5 and the permanent magnet two 6 are all the commonly known devices purchased from the market and known to the person skilled in the art, which can be customized or selected according to actual needs. Here, we only use them and do not improve their structure and function. Therefore, we will not go into details. The driving motor 11, the permanent magnet one 5 and the permanent magnet two 6 are all provided with a control switch matched therewith. The installation position of the control switch is selected according to actual use requirements, so as to facilitate the operation and control of the operator. The technology is very mature and can be realized.

[0056] The implementation principle of the cutting tool for part machining in the embodiment is as follows: firstly, when the user needs to replace the tool, the fastening knob 9 is rotated to drive the threaded connecting rod 8 to move axially, and the fastening plate 10 fixedly connected with the threaded connecting rod 8 moves synchronously axially. The cooperation of the permanent magnet one 5 and the permanent magnet two 6 prevents the tool handle 7 from falling, but the user can easily take it down with a little force. Then the user places the new tool handle 7 in the tool handle 7 through the magnetic pole mutual attraction principle of the permanent magnet one 5 and the permanent magnet two 6 to realize the pre-positioning function of the tool handle 7. Then under the guidance of the I-shaped positioning pin 4, the tool handle 7 can be accurately connected to the tool mounting seat 3 to effectively prevent reverse installation misoperation. Then the fastening knob 9 is rotated to drive the threaded connecting rod 8 to move axially, thereby driving the fastening plate 10 to move synchronously, and finally realizing the reliable locking of the tool handle 7 in the tool mounting seat 3. Finally, the user places the workpiece to be processed on the workbench 1, starts the driving motor 11 to drive the bidirectional threaded rod 12 to rotate, and through the action of the bidirectional threaded rod 12, the T-shaped sliding block 13 arranged at both ends of the bidirectional threaded rod 12 moves axially in opposite directions to fix the workpiece to be processed.

Claims

1. A cutting tool for machining a part, characterized by, Include: Workbench (1); L-shaped connecting frame (2), the L-shaped connecting frame (2) is fixedly welded on the workbench (1), and the L-shaped connecting frame (2) is provided with a tool mounting seat (3), and the tool mounting seat (3) is fixedly connected with the L-shaped connecting frame (2); I-shaped positioning pin (4), the I-shaped positioning pin (4) is fixedly welded in the connecting groove formed in the tool mounting seat (3); Three permanent magnets (5), three permanent magnets (5) are all bonded in the recess one formed in the tool mounting seat (3) through adhesive; Three permanent magnets (6) and a tool shank (7), three permanent magnets (6) are all bonded in the recess two formed in the tool shank (7) through adhesive, and one end of the tool shank (7) is provided with a positioning groove matched with the I-shaped positioning pin (4); Threaded connecting rod (8) and fastening knob (9), the threaded connecting rod (8) is arranged in the tool mounting seat (3), one end of the threaded connecting rod (8) is fixedly connected with a fastening plate (10), the other end of the threaded connecting rod (8) extends out of the tool mounting seat (3) through the fastening hole formed in the tool mounting seat (3), and the fastening knob (9) is rotatably arranged on the tool mounting seat (3), and the fastening knob (9) is screwed with the other end of the threaded connecting rod (8) extending out of the tool mounting seat (3); Workpiece fixing device, the workpiece fixing device is arranged on the workbench (1), and is used for fixing the workpiece.

2. The cutting tool for machining a part according to claim 1, characterized in that: The workpiece fixing device includes a driving motor (11), a bidirectional threaded rod (12) and two T-shaped sliders (13), the bidirectional threaded rod (12) is arranged in the workbench (1), one end of the bidirectional threaded rod (12) is rotatably connected with the workbench (1), the other end of the bidirectional threaded rod (12) extends out of the workbench (1) and is concentrically connected with the output shaft of the driving motor (11) through the through hole formed in the workbench (1), and the two T-shaped sliders (13) are correspondingly arranged on the two ends of the bidirectional threaded rod (12), and the T-shaped slider (13) is fixedly connected with a pressing plate (14).

3. The cutting tool for machining a part according to claim 2, wherein: The pressing plate (14) is provided with anti-skid lines.

4. The cutting tool for machining a part according to claim 1, wherein: Three permanent magnets (5) are arranged on the tool mounting seat (3) at an equal angle of 120°, and the positions of the permanent magnets (6) are matched with the permanent magnets (5).

5. The cutting tool for machining a part according to claim 1, wherein: The bottom of the workbench (1) is fixedly welded with a connecting column (15), one end of the connecting column (15) away from the workbench (1) is fixedly welded with a supporting disc (16), and the outside of the supporting disc (16) is sleeved with a rubber sleeve (17).

6. The cutting tool for machining a workpiece according to claim 1, wherein: The pitch of the threaded connecting rod (8) and the fastening knob (9) is 1.5-2.5mm, and the rotation angle of the fastening knob (9) is not more than 270°.

7. The cutting tool for machining a part according to claim 1, wherein: One end of the workbench (1) is fixedly welded with a bearing seat (18), and a bearing (19) matched with the output shaft of the driving motor (11) is detachably installed in the bearing seat (18).

Images