Multi-axis linkage drill bit tip double integrated grinder

Abstract

The utility model discloses a multi -shaft linkage drill bit tip double integral grinding machine, in view of traditional drill bit processing grinder exists process cumbersome, low precision, automation degree is insufficient etc. and designs, and the grinding spindle of main shaft system sets up inside, outside grinding wheel respectively for opening and double relief angle grinding, and trimming spindle is matched with diamond roller, movement axle contains three linear shafts and three rotary axes, the automatic feeding of feeding mechanism, and the positioning probe determines the groove position, and the clamping system realizes the bar clamping release through the pneumatic tool loosening mechanism, and the numerical control system controls each axle movement and processing flow, and its diamond roller layout optimization improves the rigidity of grinding wheel modifier, and inside and outside grinding wheel do not interfere with each other, when working, once clamping can complete the grinding of tip and double relief angle, and through the programming accurate control processing, and the blanking adopts the through type, and the degree of automation is high, compared with traditional grinding machine, and the grinding machine significantly improves the processing efficiency and precision, reduces the labor intensity and cost.

Description

Technical Field

[0001] This utility model relates to the field of drill bit processing technology, specifically a multi-axis linkage drill bit tip dual-integrated grinding machine. Background Technology

[0002] In the field of drill bit processing, traditional grinding machines usually require multiple clamping operations to complete multiple processes such as tip grinding and back angle grinding. This not only leads to low processing efficiency, but also the multiple clamping operations can easily introduce errors, affecting the processing accuracy of the drill bit.

[0003] In addition, the grinding wheel dressing device of traditional grinding machines is not rigid enough, making it difficult to dress the grinding wheel surface with high precision, which in turn affects the grinding quality of the drill bit. At the same time, the loading and unloading mechanism of traditional grinding machines has a low degree of automation and requires more manual intervention, which increases labor intensity and production costs.

[0004] To address these issues, this invention provides a multi-axis linkage drill tip dual-integrated grinding machine. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a multi-axis linkage drill tip dual-integrated grinding machine, which solves the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-axis linkage drill tip dual-integrated grinding machine, comprising:

[0007] Spindle system: includes a grinding spindle, which is equipped with an inner grinding wheel and an outer grinding wheel for grinding the end edge, wherein the inner grinding wheel is used for point grinding and the outer grinding wheel is used for double back angle grinding; also includes a dressing spindle, which is equipped with a diamond roller;

[0008] Motion axis system: includes three linear motion axes: X-axis, Y-axis, and Z-axis, and three rotary motion axes: A-axis, B-axis, and C-axis; A-axis servo motor, B-axis servo motor, and C-axis servo motor drive the corresponding rotary axes respectively; X-axis slide and Y-axis slide are used for linear motion.

[0009] The feeding and positioning mechanism consists of a feeding machine slide, a guide chute, a storage box, and a pushing servo motor; the positioning probe mechanism is installed on the spindle seat and is used to detect the position of the drill bit groove.

[0010] Clamping system: Bar clamping springs are used to clamp the bar stock. The clamping springs work in conjunction with the swing head, and clamping and releasing are achieved through a pneumatic tool release mechanism. The swing head is indexed and positioned by a CNC system.

[0011] CNC system: controls the movement of each axis and the machining process, enabling programmable machining of sharpening and double back angle configurations.

[0012] Preferably, the diamond roller is positioned directly below the axis of the grinding wheel spindle to improve the rigidity of the grinding wheel dresser.

[0013] Preferably, the feeding box in the feeding mechanism pushes the bar stock to the guide groove through pneumatic motion, and the pushing servo motor drives the pushing rod to push the bar stock handle into the clamping spring.

[0014] Preferred method: The material is fed through-feed, and the new material pushes the finished bar out from the rear end of the swing head and into the material box.

[0015] Preferably, the inner grinding wheel and the outer grinding wheel of the grinding spindle do not interfere with each other, and can process complex open-point and double-back-angle configurations.

[0016] Preferably, the positioning probe mechanism determines the angular division position of the groove by triggering a sensor through the probe touching the drill bit groove.

[0017] Beneficial effects

[0018] This invention provides a multi-axis linkage drill tip dual-integrated grinding machine. Compared with the prior art, it has the following advantages:

[0019] 1. This multi-axis linkage drill tip double-angle grinding machine is equipped with three linear motion axes (X, Y, Z) and three rotary motion axes (A, B, C), as well as a feeding linear axis, a grinding wheel spindle, and a dressing electric spindle. It can complete the tip grinding and double back angle grinding in one clamping of the drill bit. At the same time, it adopts a CNC system to control the movement of each axis and the processing flow, and can accurately complete the programmable machining of tip grinding and double back angle configuration.

[0020] 2. This multi-axis linkage drill tip dual-integrated grinding machine has a diamond roller layout directly below the grinding wheel spindle axis, which improves the rigidity of the grinding wheel dresser and can dress the grinding wheel surface with a higher degree of smoothness, thereby allowing the grinding wheel to grind the drill bit groove with a higher degree of smoothness. In addition, the inner and outer grinding wheels on the spindle do not interfere with each other, and can process more complex open tip and double back angle configurations according to customer requirements. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the external structure of this utility model;

[0023] In the diagram: 1. Bar stock clamping spring; 2. C-axis servo motor; 3. Pusher servo motor; 4. Z-axis servo motor; 5. Inner grinding wheel; 6. Outer grinding wheel; 7. Grinding spindle; 8. Dressing spindle; 9. Loading machine slide; 10. Y-axis slide; 11. X-axis slide; 12. Guide chute; 13. Storage box; 14. B-axis servo motor; 15. A-axis servo motor; 16. Bar stock; 17. Diamond roller; 18. Y-axis servo motor; 19. Positioning probe mechanism. Detailed Implementation

[0024] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] Reference Figure 1 This application provides a multi-axis linkage drill tip dual-integrated grinding machine, including: a spindle system: including a grinding spindle 7, on which an inner grinding wheel 5 and an outer grinding wheel 6 are provided for grinding the end cutting edge, wherein the inner grinding wheel 5 is used for tip grinding and the outer grinding wheel 6 is used for double back angle grinding; it also includes a dressing spindle 8, on which a diamond roller 17 is provided; a motion axis system: including three linear motion axes of X-axis, Y-axis and Z-axis, and three rotary motion axes of A-axis, B-axis and C-axis; an A-axis servo motor 15, a B-axis servo motor 14 and a C-axis servo motor 2 respectively drive the corresponding rotary axes; an X-axis slide 11 and a Y-axis slide 10 are used for linear motion. The feeding and positioning mechanism consists of a feeding machine slide 9, a guide chute 12, a storage box 13, and a pusher servo motor 3; the positioning probe mechanism 19 is installed on the spindle seat and is used to detect the position of the drill bit groove; the clamping system consists of a bar clamping spring 1 for clamping the bar 16, which cooperates with the swing head and is clamped and released by a pneumatic tool release mechanism; the swing head is indexed and positioned by the CNC system; the CNC system controls the movement of each axis and the machining process to realize programmable machining of sharpening and double back angle configuration.

[0027] The diamond roller 17 is positioned directly below the axis of the grinding wheel spindle to improve the rigidity of the grinding wheel dresser. The feeding box in the feeding mechanism pushes the bar stock 16 to the guide groove 12 through pneumatic motion. The pusher servo motor 3 drives the pusher rod to push the shank of the bar stock 16 into the clamping spring. The unloading adopts a through-feeding method. The new material pushes the finished bar stock 16 out from the rear end of the swing head and into the material box. The inner grinding wheel 5 and the outer grinding wheel 6 of the grinding spindle 7 do not interfere with each other and can process complex open-point and double-back-angle configurations. The positioning probe mechanism 19 determines the angular division position of the groove by touching the drill bit groove with the probe to trigger the sensor.

[0028] In this embodiment, taking the machining of a certain type of twist drill bit as an example: the machining program is input through the CNC system, the linear motion parameters of the X-axis, Y-axis, and Z-axis and the rotational parameters of the A-axis, B-axis, and C-axis are set, and the rotational speed of the grinding spindle 7 and the dressing spindle 8 and the dressing trajectory of the diamond roller 17 are controlled.

[0029] Start the dressing process: The Z-axis and Y-axis are linked, and the inner grinding wheel 5 and the outer grinding wheel 6 are dressed on the diamond roller 17 to form a grinding wheel shape with an open tip and double back angle that meets the design requirements.

[0030] Feeding mechanism operation: The bar stock 16 in the storage box 13 is pneumatically pushed to the guide groove 12. The pusher servo motor 3 drives the pusher rod to send the bar stock handle into the clamping spring 1. The swing head cylinder retracts to clamp the bar stock. The X-axis slide table 11 moves to the grinding position.

[0031] The probe of the positioning probe mechanism 19 contacts the groove of the bar stock. The C-axis rotates to trigger the sensor. After determining the groove angular division position, the B-axis and C-axis work together to control the bar stock to complete the opening grinding on the inner grinding wheel 5. Then, the position of the outer grinding wheel 6 is adjusted by the Y-axis and Z-axis to complete the double back angle grinding in conjunction with the B-axis and C-axis.

[0032] During feeding, new material is pushed in from the front end of clamping spring 1, and finished product falls into material box from the rear end of swing head through guide groove, completing one processing cycle.

[0033] After processing every 5 bars, repeat the grinding wheel dressing process to ensure grinding accuracy.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] Working principle: Dressing grinding wheels: Start the machine tool, and the Z-axis and Y-axis are linked to make the inner grinding wheel 5 and the outer grinding wheel 6 on the rotating grinding spindle 7 grind on the diamond roller 17 of the dressing spindle 8, and dress the open-point grinding wheel shape and the double-back-angle grinding wheel shape according to the motion program.

[0036] Feeding: The X-axis slide 11 moves, and the A-axis and B-axis rotate, so that the bar clamping spring 1 at the end of the swing head clamping is aligned with the guide groove 12. The feeding machine slide 9 moves forward under the push of the cylinder. The feeding box pushes the bar 16 to the guide groove 12 through pneumatic motion. The pushing servo motor 3 drives the pushing rod to push the bar handle into the clamping spring 1. The swing head cylinder retracts to release the disc spring thrust and clamp the bar. The feeding machine slide 9 retracts and the X-axis slide 11 moves to the grinding wheel preparation position.

[0037] Detection and positioning groove: The Z-axis moves forward, the probe of the positioning probe mechanism 19 touches the front end of the drill bit groove, compresses the axial spring, and the C-axis drives the bar stock 16 to rotate. When the probe is stuck in the groove, the C-axis continues to rotate so that the side of the groove scrapes against the probe, triggering the sensor to determine the groove angular division position.

[0038] Grinding: Taking the groove position as the origin, the inner grinding wheel 5 performs point grinding: the B axis and C axis drive the bar stock 16 to rotate and oscillate back and forth. After grinding one side, the C axis rotates 180° to grind the other side. After the point grinding is completed, the Z axis moves back to align the outer grinding wheel 6 with the bar stock. The B axis, C axis and Y axis work together to grind the double back angle. Similarly, the C axis rotates 180° to complete the processing of both sides.

[0039] Unloading: The X-axis slide 11 moves to align with the feeder, and the A-axis and B-axis swing to align the clamping spring 1 with the guide groove 12. The feeder pushes the material into the clamping spring, and the new material pushes the finished product out from the rear end of the swing head and into the material box.

[0040] Cyclic processing: Repeat steps 2-5, and perform step 1 to dress the grinding wheel after processing every 5 bars.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-axis linkage drill tip dual-integrated grinding machine, characterized in that: include: Spindle system: includes a grinding spindle (7), on which a grinding end cutting edge is provided. The inner grinding wheel (5) and the outer grinding wheel (6) are used for point grinding and the outer grinding wheel (6) is used for double back angle grinding; it also includes a dressing spindle (8) on which a diamond roller (17) is provided. Motion axis system: includes three linear motion axes: X-axis, Y-axis, and Z-axis, as well as A-axis, B-axis, and C-axis. The system has three rotary motion axes; the A-axis servo motor (15), B-axis servo motor (14), and C-axis servo motor (2) drive the corresponding rotary axes respectively; the X-axis slide (11) and Y-axis slide (10) are used for linear motion; Feeding and positioning mechanism: feeding machine slide (9), guide chute (12), storage box (13), pusher The material servo motor (3) forms the feeding mechanism; the positioning probe mechanism (19) is installed on the spindle seat and is used to detect the position of the drill bit groove; Clamping system: Bar clamping spring (1) is used to clamp bar (16). The clamping spring cooperates with the swing head, through The pneumatic tool release mechanism enables clamping and release, while the oscillating head is indexed and positioned by the CNC system. CNC system: controls the movement of each axis and the machining process, enabling programmable machining of sharpening and double back angle configurations.

2. The multi-axis linkage drill tip dual-integrated grinding machine according to claim 1, characterized in that: The diamond roller (17) is positioned directly below the axis of the grinding wheel spindle to improve the rigidity of the grinding wheel corrector.

3. The multi-axis linkage drill tip dual-integrated grinding machine according to claim 1, characterized in that: The feeding box in the feeding mechanism pushes the bar (16) to the guide groove (12) by pneumatic motion, and the pushing servo motor (3) drives the pushing rod to push the handle of the bar (16) into the clamping spring.

4. The multi-axis linkage drill tip dual-integrated grinding machine according to claim 1, characterized in that: The material is fed through the material, and the new material pushes the finished bar (16) out from the rear end of the swing head and into the material box.

5. A multi-axis linkage drill tip dual-integrated grinding machine according to claim 1, characterized in that: The inner grinding wheel (5) and the outer grinding wheel (6) of the grinding spindle (7) do not interfere with each other, allowing for the machining of complex materials. Open-point and double-back-angle configuration.

6. A multi-axis linkage drill tip dual-integrated grinding machine according to claim 1, characterized in that: The positioning probe mechanism (19) determines the angular division position of the groove by triggering the sensor through the probe touching the drill bit groove.

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