Chuck device for medical micro-knife machining

Abstract

The utility model relates to a chuck device for medical micro-knife machining. The distance between an existing supporting mechanism and a clamping spring is fixed, and therefore when the length of a workpiece to be machined is changed, the supporting mechanism is difficult to be well matched with the workpiece. The machine comprises a machine cover which is provided with an A-axis mechanism which is driven by a motor to rotate, and is characterized in that the front end of the machine cover is provided with a mounting seat of which the extension length can be adjusted front and back, the middle of the mounting seat is provided with a supporting clamp which can be adjusted in multiple directions, and the top of the supporting clamp is provided with a workpiece clamping groove; a pressing positioning mechanism is arranged on the side portion of the supporting clamp. According to the utility model, a precise multi-direction adjustable supporting mechanism is provided to reliably support the workpiece so as to be matched with the machining of workpieces with various specifications.

Description

Technical Field

[0001] The invention belongs to the structural improvement of an A-axis chuck device for medical micro-knife processing, in particular to a chuck device for medical micro-knife processing. Background Art

[0002] The conventional chuck device for medical micro-knife processing includes an A-axis body driven to rotate by an A-axis motor, and a clip is arranged at the outer end of the A-axis body to clamp the workpiece to be processed. During the processing, the A-axis motor drives the workpiece to rotate and then the grinding wheel is used to finely process the surfaces of the workpiece. Since this type of medical micro-knife is small in size, a support mechanism is usually required to support the workpiece extending outside the clip so as to form a stable and reliable processing.

[0003] The above-mentioned prior art has the following problems: First, the existing support mechanism has a fixed distance from the clip, so when the length of the workpiece to be processed changes, it is difficult for the support mechanism to form a better match with the workpiece. On the other hand, the existing support mechanism only has the function of lifting up and down to support the workpiece, and does not have the function of multi-directional adjustment left and right, so it has limitations. Finally, the rotation accuracy of the existing A-axis body does not have a corresponding detection mechanism for corresponding detection, and the working status of the A-axis body cannot be accurately monitored. Summary of the invention

[0004] In view of the above problems, the present invention provides a chuck device for medical micro-knife processing, which has a precise multi-directional adjustable support mechanism to form a reliable support for the workpiece, so as to match the processing of workpieces of various specifications; in addition, it can also accurately monitor the rotation speed of the A-axis body to detect problems in time.

[0005] To this end, the present invention adopts the following technical solution: a chuck device for medical micro-knife processing, including a machine cover, on which an A-axis mechanism driven to rotate by a motor is arranged, characterized in that a mounting seat capable of adjusting the extension length forward and backward is arranged at the front end of the machine cover, a supporting fixture capable of adjusting in multiple directions is arranged in the middle of the mounting seat, a workpiece clamping groove is arranged on the top of the supporting fixture, and a downward positioning mechanism is arranged on the side of the supporting fixture.

[0006] Preferably, the supporting fixture comprises a lifting block, which matches the vertical guide rail arranged in the mounting seat; a horizontal transverse block is installed on the outside of the lifting block, a supporting member is installed on the horizontal transverse block, and the workpiece clamping groove is arranged on the top of the supporting member.

[0007] Preferably, the A-axis mechanism comprises a synchronous wheel driven by the A-axis motor, the synchronous wheel drives the A-axis body to rotate, and a grating rotor and a grating stator are arranged at the rear of the synchronous wheel.

[0008] Preferably, the A-axis motor drives the driving wheel to rotate, the driving wheel is connected to the synchronous wheel via a synchronous belt, and a tensioning wheel is arranged on the synchronous belt between the driving wheel and the synchronous wheel.

[0009] Preferably, the downward pressing positioning mechanism comprises a fixing block, a plurality of vertical guide holes are arranged in the fixing block, a guide rod is arranged in the guide hole, and the upper end of the guide rod is connected to the pressing rod body.

[0010] Preferably, transverse guide rods are symmetrically arranged on both sides of the lower portion of the hood, and the outer ends of the transverse guide rods are connected to mounting seats.

[0011] Preferably, a U-axis mechanism capable of moving forwards and backwards is provided at the bottom of the hood.

[0012] Preferably, the U-axis mechanism is arranged on a horizontally rotating C-axis mechanism.

[0013] Preferably, the U-axis mechanism includes a transverse platform, which is mounted on a lead screw; the C-axis mechanism includes a rotating platform, which is driven to rotate by a C-axis rotating cylinder.

[0014] Preferably, the lifting block is driven by an oil cylinder to move up and down.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. A mounting seat capable of adjusting the extension length forward and backward is arranged at the front of the A-axis mechanism, and a supporting fixture is arranged on the mounting seat. This structure enables the supporting fixture to adapt to micro-cutters of different specifications and lengths for support, assists subsequent processing, and improves the processing application range.

[0017] 2. The support fixture can be adjusted in multiple directions relative to the mounting base, left and right, up and down, so it can adapt to the workpiece in multiple directions for better support.

[0018] 3. The rotation of the A-axis body is accurately monitored through the grating rotor connected with the synchronous wheel, and the working status is monitored in real time to ensure smooth processing.

[0019] 4. The A-axis mechanism is set on the horizontally rotating C-axis mechanism and the front-rear lateral U-axis mechanism, which can realize multi-directional and angular adjustment of the workpiece to complete the fine processing of each surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention.

[0021] Figure 2 for Figure 1 Schematic side view of .

[0022] Figure 3A schematic diagram of the interior of the mounting base and A-axis mechanism.

[0023] Figure 4 This is a schematic diagram of the A-axis mechanism being installed on the U-axis mechanism and the C-axis mechanism.

[0024] In the figure: 1, machine cover 2, A-axis mechanism 3, downward pressing positioning mechanism 4, workpiece clamping groove 5, supporting fixture 6, horizontal traverse block 7, fixed block 8, mounting seat 9, transverse guide rod 10, A-axis motor 11, vertical guide rail 12, lifting block 13, C-axis mechanism 14, U-axis mechanism 15, hand wheel 16, screw 211, A-axis body 212, clip spring 213, pressure cover 214, deep groove ball bearing 215, cross roller bearing 216, synchronous wheel 217, synchronous belt 218, grating rotor 219, grating stator 220, tensioner wheel 221, driving wheel. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with specific embodiments.

[0026] like Figure 1-Figure 3 The chuck device for medical micro-knife processing shown in the figure includes a machine cover 1, on which is arranged an A-axis mechanism 2 driven to rotate by a motor, a mounting seat 8 capable of adjusting the extension length forward and backward is arranged at the front end of the machine cover 1, a supporting fixture 5 capable of being adjusted in multiple directions is arranged in the middle of the mounting seat 8, a workpiece clamping groove 4 is arranged on the top of the supporting fixture 5, and a downward pressing positioning mechanism 3 is arranged on the side of the supporting fixture 5.

[0027] In this technical solution, the support fixture used to support the micro-knife to be processed is positioned as a whole on the mounting seat, and the mounting seat can move forward and backward relative to the A-axis mechanism. This structure enables the support fixture to adapt to micro-knives of different specifications and lengths for support, assisting subsequent processing and expanding the scope of application.

[0028] In one embodiment, the support fixture 5 includes a lifting block 12, and the lifting block 12 matches the vertical guide rail 11 provided in the mounting seat 8; the outside of the lifting block 12 is provided with a horizontal lateral block 6, and a support member is installed on the horizontal lateral block 6, and the workpiece clamping groove 4 is provided on the top of the support member. In order to adapt to the height of different micro knives, the support member is set on the lifting block, and the height of the support member is adjustable to better complete the support. In addition, in order to improve the overall adjustment flexibility of the support member, the support member set on the horizontal lateral block can also be fine-tuned left and right.

[0029] Specifically, the lifting block 12 is driven by a cylinder to move up and down, which further improves the overall automation level.

[0030] In one embodiment, the A-axis mechanism 2 includes a synchronous wheel 216 driven by the A-axis motor 10 , the synchronous wheel drives the A-axis body 211 to rotate, and a grating rotor 218 and a grating stator 219 are disposed at the rear of the synchronous wheel.

[0031] A pressure cover 213 and a clip 212 are arranged at the front of the A-axis body 211, a deep groove ball bearing 214 is arranged at the rear of the pressure cover, and a cross roller bearing 215 is arranged at the front of the synchronous wheel, which is directly linked to the synchronous wheel through the grating rotor 218, and the synchronous wheel directly drives the A-axis body 211. Therefore, the rotation speed of the A-axis body can be directly monitored through the grating, and accurate monitoring can be achieved to ensure the stable operation of the A-axis mechanism. The clip 212 can adjust the opening size through the pull rod, tension spring, and cylinder energy components to reliably clamp the workpiece.

[0032] Specifically, the A-axis motor drives the driving wheel 221 to rotate, and the driving wheel 221 is connected to the synchronous wheel 216 through the synchronous belt 217. A tensioning wheel 220 is arranged on the synchronous belt between the driving wheel 221 and the synchronous wheel 216. The tensioning wheel is arranged to tighten the belt and improve the transmission accuracy and efficiency.

[0033] Specifically, the downward pressing positioning mechanism includes a fixed block 7, wherein a plurality of vertical guide holes are arranged in the fixed block 7, wherein a guide rod is arranged in the guide hole, and the upper end of the guide rod is connected to a pressing rod body. The pressing rod body includes a section of a pressing rod extending laterally, and the downward pressing positioning mechanism can be lifted up and down to accurately and reliably fix the micro-knife to be processed on the workpiece clamping groove.

[0034] In one embodiment, transverse guide rods 9 are symmetrically arranged on both sides of the lower part of the hood 1, and the outer ends of the transverse guide rods 9 are connected to the mounting seat 8. The forward and backward movement of the mounting seat is mainly pre-adjusted manually to the extended position so as to match the workpiece to be processed.

[0035] like Figure 4 As shown, a U-axis mechanism 14 that can move forward and backward is provided at the bottom of the hood 1. The U-axis mechanism 14 is provided on the horizontally rotating C-axis mechanism 13. The A-axis mechanism is provided on the U-axis mechanism 14 and the C-axis mechanism 13 as a whole to achieve diversified and angular processing.

[0036] Specifically, the U-axis mechanism 14 includes a transverse moving platform, and the transverse moving platform is mounted on a lead screw 16; the lead screw is controlled to rotate by an external hand wheel to adjust the in and out position of the transverse moving platform.

[0037] Specifically, the C-axis mechanism includes a rotating platform, and the rotating platform is driven to rotate by a C-axis rotating cylinder.

[0038] The working process of the present invention is as follows: first, adjust the distance between the mounting seat and the A-axis mechanism by manually stretching the mounting seat. Feed the workpiece to be processed into the clamp of the A-axis mechanism through the automatic feeding mechanism and clamp it. Then, adjust the position of the lifting block and the horizontal traverse block so that the support fixture matches the position of the workpiece clamped by the clamp to form support for the bottom of the workpiece. Then, adjust the downward positioning mechanism to press the workpiece downward.

[0039] After positioning is completed, processing begins. The workpiece is brought close to the grinding wheel mechanism. According to the processing requirements, the A-axis mechanism and the C-axis mechanism are rotated according to the set program so that each surface and angle of the workpiece can be accurately processed.

[0040] It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A chuck device for medical micro-knife processing, comprising a machine cover (1), wherein the machine cover (1) is provided with an A-axis mechanism (2) driven to rotate by a motor, characterized in that A mounting seat (8) whose extension length can be adjusted forward and backward is arranged at the front end of the hood (1); a supporting fixture (5) that can be adjusted in multiple directions is arranged in the middle of the mounting seat (8); a workpiece clamping groove (4) is arranged at the top of the supporting fixture (5); and a downward positioning mechanism (3) is arranged on the side of the supporting fixture (5).

2. A medical micro-knife processing chuck device according to claim 1, characterized in that The support fixture (5) comprises a lifting block (12), and the lifting block (12) matches the vertical guide rail (11) arranged in the mounting seat (8); a horizontal lateral block (6) is arranged outside the lifting block (12), and a support member is installed on the horizontal lateral block (6), and the workpiece clamping groove (4) is arranged on the top of the support member.

3. A medical micro-knife processing chuck device according to claim 1 or 2, characterized in that The A-axis mechanism (2) comprises a synchronous wheel (216) driven by an A-axis motor, the synchronous wheel driving the A-axis body (211) to rotate, and a grating rotor (218) and a grating stator (219) are arranged at the rear of the synchronous wheel.

4. A medical micro-knife processing chuck device according to claim 3, characterized in that The A-axis motor drives the driving wheel (221) to rotate. The driving wheel (221) is connected to the synchronous wheel (216) via a synchronous belt (217). A tensioning wheel (220) is provided on the synchronous belt between the driving wheel (221) and the synchronous wheel (216).

5. A medical micro-knife processing chuck device according to claim 1, characterized in that The downward pressing positioning mechanism comprises a fixing block (7), a plurality of vertical guide holes are arranged in the fixing block (7), a guide rod is arranged in the guide hole, and the upper end of the guide rod is connected to the pressing rod body.

6. A medical micro-knife processing chuck device according to claim 1, characterized in that Transverse guide rods (9) are symmetrically arranged on both sides of the lower part of the hood (1), and the outer ends of the transverse guide rods (9) are connected to the mounting seats (8).

7. A medical micro-knife processing chuck device according to claim 1, characterized in that A U-axis mechanism (14) capable of moving forwards and backwards is provided at the bottom of the hood (1).

8. A medical micro-knife processing chuck device according to claim 7, characterized in that The U-axis mechanism (14) is arranged on the horizontally rotating C-axis mechanism (13).

9. A medical micro-knife processing chuck device according to claim 8, characterized in that The U-axis mechanism (14) comprises a transverse platform, and the transverse platform is mounted on a lead screw (16); the C-axis mechanism comprises a rotating platform, and the rotating platform is driven to rotate by a C-axis rotating cylinder.

10. A medical micro-knife processing chuck device according to claim 2, characterized in that The lifting block (12) is driven by an oil cylinder to move up and down.

Images