CN113560967B - Full-automatic polishing machine tool for twist drills - Google Patents
Full-automatic polishing machine tool for twist drills Download PDFInfo
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- CN113560967B CN113560967B CN202110913982.3A CN202110913982A CN113560967B CN 113560967 B CN113560967 B CN 113560967B CN 202110913982 A CN202110913982 A CN 202110913982A CN 113560967 B CN113560967 B CN 113560967B
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- block
- seat
- machine tool
- force application
- axis feeding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
- B24B3/247—Supports for drills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a full-automatic polishing machine tool for a twist drill, which relates to the end processing of the twist drill and aims at solving the hidden trouble of damaging a cone drill bit, and the technical scheme is as follows: the full-automatic polishing machine tool for the twist drills comprises a machine tool body, wherein the machine tool body is provided with a triaxial movement device, a clamp is carried on the triaxial movement device, the machine tool body is provided with a rotary cylinder, the rotary cylinder is in driving connection with a power motor, and an output shaft of the power motor is coaxially provided with a friction wheel; the fixture comprises a fixture seat, a fixed clamping block and a movable clamping block, wherein the fixture seat is provided with a supporting bottom block, the front end of the supporting bottom block is fixedly provided with a rotation limiting positioning piece, and the rotation limiting positioning piece is provided with an embedding nozzle. The full-automatic polishing machine tool for the twist drill effectively prevents a taper drill bit arranged on the end face of a main drill string from being damaged.
Description
Technical Field
The invention relates to the processing of twist drill end parts, in particular to a full-automatic polishing machine tool for twist drills.
Background
Twist drills are tools that drill round holes in a workpiece by rotating them about a fixed axis, and are known as twist-like due to the helical flutes.
As shown in fig. 7, the novel drill with the pre-drilling function comprises a main drill string 91 and a conical drill bit 92 arranged at the front end of the main drill string 91, wherein a sizing semicircle 93 and a main drill blade 94 are arranged at the joint of the main drill string 91 and the conical drill bit 92.
In the production and processing of the novel drill, the main drill cutting edge 94 needs to be polished, and most of the grinding machines in the prior art polish the end face, so that the hidden danger of damaging the cone drill 92 exists; there is therefore a need to propose a new solution to this problem.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a full-automatic polishing machine tool for a twist drill, which has the technical effects that the carrying direction of the twist drill is increased, the clamp structure is optimized, the main drill cutting edge is formed after the main drill string end face is processed, and the taper drill bit arranged on the main drill string end face is effectively prevented from being damaged.
The technical aim of the invention is realized by the following technical scheme: the full-automatic polishing machine tool for the twist drills comprises a machine tool body, wherein the machine tool body is provided with a triaxial movement device, the triaxial movement device is carried with a clamp, the machine tool body is provided with a rotary cylinder, the rotary cylinder is in driving connection with a power motor, and an output shaft of the power motor is coaxially provided with a friction wheel; the fixture comprises a fixture seat, a fixed clamping block fixedly arranged on the fixture seat, and a movable clamping block which is arranged opposite to the fixed clamping block, wherein a supporting bottom block is arranged below a clamping opening of the fixed clamping block and the movable clamping block, the front end of the supporting bottom block extends out of the front end face of the fixture seat, a rotation limiting positioning piece is fixedly arranged, a mouth is arranged on the rotation limiting positioning piece, and the mouth is embedded between a sizing semicircle and an included angle of the taper drill bit.
By adopting the technical scheme, during normal operation, the twist drill of the main drill edge to be processed is clamped and fixed by the clamp, the three-axis movement device sends the twist drill to the friction wheel according to the PLC set program, and the power motor is synchronously started to drive the friction wheel to rotate, so that the friction wheel is used for finishing processing the main drill edge; the power motor is arranged on the rotary cylinder, so that the angle of the friction wheel can be adjusted by using the rotary cylinder, and the multi-angle processing of the main drill blade opening is realized; it should be noted that, because the triaxial movement device has more carrying capacity in the Z axial direction than the traditional grinding machine, the end face of the twist drill can be guided to bypass the friction wheel, the precondition of processing after directly processing the end face of the main drill string is obtained, the fixture structure is optimized, namely, the supporting bottom block extending out of the front end face of the fixture seat is arranged, and the technical effects of fixing, limiting rotation and positioning the twist drill are achieved by utilizing the cooperation between the embedding mouth and the sizing semicircle, and the point to be processed of the main drill edge mouth can not be shielded; in summary, the application realizes the technical effect of forming the main drill cutting edge after processing the end surface of the main drill stem by adding the carrying direction of the twist drill and optimizing the clamp structure, and effectively prevents the taper drill bit arranged on the end surface of the main drill stem from being damaged.
The invention is further provided with: the triaxial movement device comprises an X-axis feeding seat which is slidably arranged on a machine body of the machine tool, a Y-axis feeding seat which is slidably arranged on the X-axis feeding seat, a vertical seat which is fixedly arranged on the Y-axis feeding seat, and a Z-axis feeding seat which is slidably arranged on the vertical seat, and the clamp seat is fixedly arranged on the Z-axis feeding seat; the machine tool body, the X-axis feeding seat and the vertical seat are provided with servo motor screw rod assemblies which are respectively used for driving the X-axis feeding seat, the Y-axis feeding seat and the Z-axis feeding seat.
By adopting the technical scheme, the triaxial movement device has the capability of carrying the twist drill to move in three directions of an X axis, a Y axis and a Z axis; the X-axis feeding seat, the Y-axis feeding seat and the Z-axis feeding seat are limited to be driven by a servo motor screw rod assembly, so that the technical effect of more accurate feeding of the twist drill in three directions is achieved.
The invention is further provided with: the fixture comprises a fixture seat, and is characterized in that an installation gradient is arranged on the upper surface of the fixture seat, a pushing block is slidably arranged on the installation gradient, the movable clamping block is fixedly arranged on the pushing block, a force application block is longitudinally and movably arranged between the pushing block and a vertical surface of the installation gradient, a force application inclined surface is arranged on the rear end surface of the pushing block, a force application inclined surface attached to the force application inclined surface is arranged on the force application block, a tension cylinder is fixedly arranged on the fixture seat, and a piston rod end of the tension cylinder is fixed with the lower end surface of the force application block.
By adopting the technical scheme, the clamp seat is provided with an installation gradient, and an installation position is provided for the movable clamping block, the pushing block and the force application block; when the twist drill is required to be clamped, the force application block is pulled by the tension cylinder to move downwards, and the force application block generates horizontal thrust towards the fixed clamping block by utilizing the cooperation between the force application inclined plane and the force application inclined plane in the downward movement process, so that the movable clamping block is pushed to slide towards the fixed clamping block, the fixed clamping of the twist drill is realized by the cooperation of the movable clamping block and the fixed clamping block, the force application is applied to the pushing block by adopting the structure, so that a large amount of reaction force is prevented from directly acting on the tension cylinder, the service life of the tension cylinder is prolonged on one hand, and the clamping stability of the twist drill is improved on the other hand.
The invention is further provided with: the upper surface of installation gradient is provided with T shape horizontal groove, the pushing block is provided with the T shape horizontal piece that slides the cooperation with T shape horizontal groove.
Through adopting above-mentioned technical scheme, utilize the cooperation between T shape horizontal groove and the T shape horizontal piece, restrict the activity degree that pushes away the piece, make it possess only along the gliding activity degree of T shape horizontal groove length direction to improve the stability that slides that pushes away the piece.
The invention is further provided with: the stress inclined plane of pushing block is provided with T shape chute in parallel, the application of force piece is provided with the T shape sloping block with T shape chute slip complex.
Through adopting above-mentioned technical scheme, realize pushing block and application of force piece's connection on the one hand for the application of force piece promotes pushing block more steadily, on the other hand when the application of force piece is promoted by the pulling force cylinder and is moved up, can produce back pulling force to pushing block, thereby realizes the technical effect of automatic loosening fluted drill.
The invention is further provided with: a compression spring is arranged between the pushing block and the vertical surface of the installation gradient, and the force application block is provided with an avoidance notch for the compression spring to pass through.
Through adopting above-mentioned technical scheme, utilize compression spring's elastic potential energy, produce towards the horizontal thrust in fixed grip block to pushing against the piece, suddenly loosen the hidden danger of fluted drill when reducing pulling force cylinder atmospheric pressure and reveal on the one hand, on the other hand balanced pulling force cylinder pulling and the required power when promoting the application of force piece reach the technological effect of being convenient for more.
The invention is further provided with: the rear end of the support bottom block is provided with an extension support plate, the extension support plate is L-shaped in side view, the vertical section of the extension support plate is fixed on the rear end face of the support bottom block, and the upper surface of the horizontal section of the extension support plate and the upper surface of the support bottom block are in the same horizontal plane.
Through adopting above-mentioned technical scheme, increase to the holding area of fluted drill, effectively reduce fluted drill because of the hidden danger that the gravity takes place the perk.
The invention is further provided with: the output disc of the rotary cylinder is provided with an angle mark, and the upper surface of the shell of the rotary cylinder is provided with an angle pointer pointing to the angle mark.
By adopting the technical scheme, the indication of the rotation angle of the output disc of the rotary cylinder is realized, and the angle control precision of the friction wheel is effectively ensured.
The invention is further provided with: the power motor is fixedly provided with a housing, the housing is provided with a semicircular cover, and the semicircular cover is semi-surrounded on the friction wheel.
By adopting the technical scheme, shielding of waste cutting is realized, and splashing of the waste cutting is effectively prevented.
The invention is further provided with: the semicircle housing is provided with the adding plate, the adding plate is provided with the hole that installs additional that supplies the coolant liquid shower nozzle to fix.
By adopting the technical scheme, the installation position is provided for the cooling liquid spray head, so that convenience is provided for additionally installing the cooling liquid spray head.
In summary, the invention has the following beneficial effects: the technical effect of forming the main drill cutting edge after processing the end face of the main drill string is achieved by increasing the carrying direction of the twist drill and optimizing the structure of the clamp, so that the taper drill bit arranged on the end face of the main drill string is effectively prevented from being damaged; the X-axis feeding seat, the Y-axis feeding seat and the Z-axis feeding seat are limited to be driven by a servo motor screw rod assembly, so that the technical effect of more accurate feeding of the twist drill in three directions is achieved; the method has the advantages that a large amount of reaction force is prevented from directly acting on the tension cylinder, so that the service life of the tension cylinder is prolonged, and the stability of clamping the twist drill is improved; the pushing block only has the activity degree of sliding along the length direction of the T-shaped horizontal groove, so that the sliding stability of the pushing block is improved; the T-shaped chute is additionally arranged to be matched with the T-shaped inclined block, so that the force application block can more stably push the pushing block on one hand, and the technical effect of automatically loosening the twist drill can be realized on the other hand; on one hand, the pushing block is connected with the force application block, so that the force application block can push the pushing block more stably, and on the other hand, when the force application block is pushed to move upwards by the tension cylinder, the pushing block can be pulled backwards, and the technical effect of automatically loosening the twist drill is achieved; the support area of the twist drill is increased by utilizing the extension support plate, so that the hidden trouble that the twist drill is tilted due to gravity is effectively reduced; by setting the angle mark and the angle pointer, the indication of the rotation angle of the output disc of the rotary cylinder is realized, and the angle control precision of the friction wheel is effectively ensured; the cover shell and the semicircular cover are additionally arranged, so that the shielding of waste cutting is realized, and the waste cutting is effectively prevented from splashing; providing an installation position for the cooling liquid spray head, thereby providing convenience for installing the cooling liquid spray head additionally.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is a schematic view of the whole structure of another view of the present application;
FIG. 3 is a schematic view of a twist drill mounted to the fixture of the present application;
FIG. 4 is an exploded view of FIG. 3;
FIG. 5 is an exploded view of the other view of FIG. 3;
FIG. 6 is a diagram of the mating relationship of a rotary cylinder, a power motor, and a friction wheel;
Fig. 7 is a schematic view of the structure of the twist drill to be processed.
Description of the drawings: 1. a machine tool body; 21. an X-axis feeding seat; 22. a Y-axis feeding seat; 23. a vertical seat; 24. a Z-axis feeding seat; 25. a servo motor screw rod assembly; 31. a clamp seat; 32. fixing the clamping blocks; 33. a movable clamping block; 34. a support bottom block; 35. inserting a mouth; 36. installing a gradient; 37. a pushing block; 38. a force application block; 39. a stress inclined plane; 40. a force application inclined plane; 41. a tension cylinder; 42. t-shaped horizontal grooves; 43. t-shaped horizontal blocks; 44. a T-shaped chute; 45. t-shaped oblique blocks; 46. a compression spring; 47. avoiding the notch; 48. an extension support plate; 51. a rotary cylinder; 52. a power motor; 53. a friction wheel; 54. an angle mark; 55. an angle pointer; 56. a housing; 57. a semi-circular cover; 58. adding a plate; 59. adding a mounting hole; 91. a main drill string; 92. a cone drill bit; 93. sizing semicircle; 94. and (5) a main drill cutting edge.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The full-automatic polishing machine tool for the twist drills is shown in fig. 1,2 and 3, and comprises a machine tool body 1, wherein the machine tool body 1 is provided with a triaxial movement device, a clamp is carried on the triaxial movement device, the machine tool body 1 is provided with a rotary cylinder 51, the rotary cylinder 51 is in driving connection with a power motor 52, and a friction wheel 53 is coaxially arranged on an output shaft of the power motor 52; the fixture comprises a fixture seat 31, a fixed clamping block 32 fixedly arranged on the fixture seat 31 and a movable clamping block 33 which is opposite to the fixed clamping block 32, wherein a supporting bottom block 34 is arranged below the clamping openings of the fixed clamping block 32 and the movable clamping block 33 on the fixture seat 31, the front end of the supporting bottom block 34 extends out of the front end face of the fixture seat 31, a rotation limiting positioning piece is fixedly arranged on the front end face of the supporting bottom block 34, the rotation limiting positioning piece is provided with a clamping mouth 35, and the clamping mouth 35 is embedded between an included angle of a sizing semicircle 93 and a taper drill 92.
During normal operation, the twist drill of the main drill edge 94 to be processed is clamped and fixed by the clamp, the three-axis movement device sends the twist drill to the friction wheel 53 according to a PLC set program, and the power motor 52 is synchronously started to drive the friction wheel 53 to rotate, so that the friction wheel 53 finishes processing the main drill edge 94; it should be noted that, since the power motor 52 is mounted above the rotary cylinder 51, the angle of the friction wheel 53 can be adjusted by using the rotary cylinder 51, so as to realize multi-angle processing of the main drill edge 94; it should be further noted that, because the triaxial movement device has more carrying capacity in the Z-axis direction than the traditional grinding machine, the end face of the twist drill can be guided to bypass the friction wheel 53, the precondition of processing directly after the end face of the main drill string 91 is obtained, the fixture structure is optimized, namely, the supporting bottom block 34 extending out of the front end face of the fixture seat 31 is arranged, and the cooperation between the embedding mouth 35 and the sizing semicircle 93 is utilized, so that the technical effects of fixing, limiting rotation and positioning the twist drill are achieved, and the point to be processed of the main drill edge 94 is not blocked; in summary, the present application achieves the technical effect of forming the main cutting edge 94 after processing the end surface of the main drill string 91 by adding a carrying direction of the twist drill and optimizing the fixture structure, and effectively prevents the taper drill 92 disposed on the end surface of the main drill string 91 from being damaged.
The triaxial movement device has the specific structure as shown in fig. 1 and 2, and comprises an X-axis feeding seat 21 slidably mounted on a machine body 1 of the machine tool, a Y-axis feeding seat 22 slidably mounted on the X-axis feeding seat 21, a vertical seat 23 fixedly mounted on the Y-axis feeding seat 22, and a Z-axis feeding seat 24 slidably mounted on the vertical seat 23, wherein a clamp seat 31 is fixedly mounted on the Z-axis feeding seat 24, so that the triaxial movement device has the capability of carrying twist drills to move in three directions of an X axis, a Y axis and a Z axis; it should be noted that, the machine body 1, the X-axis feeding seat 21 and the vertical seat 23 are all provided with a servo motor screw rod assembly 25 for driving the X-axis feeding seat 21, the Y-axis feeding seat 22 and the Z-axis feeding seat 24 respectively, so as to achieve the technical effect of more accurate feeding of the twist drill in three directions.
The upper surface of the clamp seat 31 is provided with an installation gradient 36, as shown in fig. 3, 4 and 5, the installation gradient 36 slides with a pushing block 37, the movable clamping block 33 is fixedly arranged on the pushing block 37, a force application block 38 is longitudinally and movably arranged between the pushing block 37 and a vertical surface of the installation gradient 36, the rear end surface of the pushing block 37 is provided with a stress inclined surface 39, the force application block 38 is provided with a force application inclined surface 40 attached to the stress inclined surface 39, the clamp seat 31 is fixedly provided with a tension cylinder 41, and the piston rod end of the tension cylinder 41 is fixed with the lower end surface of the force application block 38; when the twist drill is required to be clamped, the force application block 38 is pulled by the tension cylinder 41 to move downwards, the force application block 38 generates horizontal thrust towards the fixed clamping block 32 by utilizing the cooperation between the force application inclined surface 40 and the force application inclined surface 39 in the downward moving process, so that the movable clamping block 33 is pushed to slide towards the fixed clamping block 32, the fixed clamping of the twist drill is realized by the cooperation of the movable clamping block 33 and the fixed clamping block 32, the structure is adopted to apply force to the pushing block 37, so that a large amount of reaction force is prevented from directly acting on the tension cylinder 41, the service life of the tension cylinder 41 is prolonged on one hand, and the clamping stability of the twist drill is improved on the other hand.
The pushing block 37 is slidably mounted on the mounting gradient 36 in such a manner that, as shown in fig. 5, a T-shaped horizontal groove 42 is formed on the upper surface of the mounting gradient 36, and a T-shaped horizontal block 43 slidably engaged with the T-shaped horizontal groove 42 is formed on the pushing block 37, so that the movement of the pushing block 37 is limited by the engagement between the T-shaped horizontal groove 42 and the T-shaped horizontal block 43, and only the movement of the pushing block is slidable along the length direction of the T-shaped horizontal groove 42, thereby effectively improving the sliding stability of the pushing block 37.
As shown in fig. 4 and 5, the stress inclined surface 39 of the pushing block 37 is formed with a T-shaped chute 44 parallel to the stress inclined surface, the force application block 38 is formed with a T-shaped inclined block 45 slidably matching with the T-shaped chute 44, so that, on one hand, the pushing block 37 is connected with the force application block 38, the force application block 38 pushes the pushing block 37 more stably, and on the other hand, when the force application block 38 is pushed up by the tension cylinder 41, a rear tension can be generated on the pushing block 37, thereby realizing the technical effect of automatically loosening the twist drill.
In order to reduce potential safety hazards, as shown in fig. 4 and 5, a compression spring 46 is arranged between the pushing block 37 and the vertical surface of the installation gradient 36, and the force application block 38 is provided with a avoiding notch 47 for the compression spring 46 to pass through, so that the elastic potential energy of the compression spring 46 is utilized to generate horizontal pushing force to the pushing block 37 towards the fixed clamping block 32, on one hand, the potential hazard of suddenly loosening the twist drill when the air pressure of the tension cylinder 41 leaks is reduced, and on the other hand, the force required by the tension cylinder 41 for pulling and pushing the force application block 38 is balanced, so that the technical effect of more convenient control is achieved.
In practical application, it is found that the front end of the twist drill with larger length may be tilted before clamping and fixing to affect the clamping precision, therefore, the rear end of the support bottom block 34 is provided with the extension support plate 48, the extension support plate 48 is in an L shape in side view, the vertical section of the extension support plate is fixed on the rear end face of the support bottom block 34 by bolts, and the upper surface of the horizontal section of the extension support plate is in the same horizontal plane with the upper surface of the support bottom block 34, so that the support area of the twist drill is increased, and the hidden trouble that the twist drill is tilted due to gravity is effectively reduced.
In order to ensure the angle control precision of the friction wheel 53, as shown in fig. 6, an angle mark 54 is arranged on the output disc of the rotary cylinder 51 along the bottom end of the circumference, and an angle pointer 55 pointing to the angle mark 54 is fixedly arranged on the upper surface of the housing of the rotary cylinder 51, so that the indication of the rotation angle of the output disc of the rotary cylinder 51 is realized, and the angle control precision of the friction wheel 53 is effectively ensured.
As shown in fig. 6, the power motor 52 is fixedly provided with a housing 56, the housing 56 is fixedly provided with a semicircular cover 57, and the semicircular cover 57 is semi-enclosed by the friction wheel 53, thereby shielding the generated waste scraps and effectively preventing the waste scraps from splashing.
The friction wheel 53 can produce a large amount of heat when polishing the twist drill, need use the coolant liquid shower nozzle to spray the coolant liquid in order to realize the cooling, and for this reason, as shown in fig. 6, the semicircle housing 57 is bent the shaping and is had the board 58 that adds, adds the board 58 and is provided with the fixed mounting hole 59 that adds of coolant liquid shower nozzle to for the coolant liquid shower nozzle provides an mounted position, reaches the more convenient technological effect of installing the coolant liquid shower nozzle additional.
The present invention is not limited by the specific embodiments, and modifications can be made to the embodiments without creative contribution by those skilled in the art after reading the present specification, but are protected by patent laws within the scope of claims of the present invention.
Claims (6)
1. A full-automatic lathe of polishing for twist drill, includes lathe fuselage (1), its characterized in that: the machine tool comprises a machine tool body (1), a clamp, a rotary cylinder (51) and a friction wheel (53) coaxially arranged on an output shaft of the power motor (52), wherein the machine tool body (1) is provided with the three-axis movement device, the rotary cylinder (51) is connected with the power motor (52) in a driving mode;
The fixture comprises a fixture seat (31), a fixed clamping block (32) fixedly arranged on the fixture seat (31) and a movable clamping block (33) which is opposite to the fixed clamping block (32), wherein a supporting bottom block (34) is arranged below a clamping opening of the fixed clamping block (32) and the movable clamping block (33) on the fixture seat (31), the front end of the supporting bottom block (34) extends out of the front end surface of the fixture seat (31) and is fixedly provided with a rotation limiting positioning piece, the rotation limiting positioning piece is provided with a clamping mouth (35), and the clamping mouth (35) is embedded between a sizing semicircle (93) and an included angle of a taper drill bit (92);
the fixture comprises a fixture seat (31), and is characterized in that an installation gradient (36) is arranged on the upper surface of the fixture seat (31), a pushing block (37) is slipped on the installation gradient (36), the movable clamping block (33) is fixedly arranged on the pushing block (37), a force application block (38) is longitudinally and movably arranged between the pushing block (37) and a vertical surface of the installation gradient (36), a force application inclined surface (39) is arranged on the rear end surface of the pushing block (37), a force application inclined surface (40) attached to the force application inclined surface (39) is arranged on the force application block (38), a tension cylinder (41) is fixedly arranged on the fixture seat (31), and a piston rod end of the tension cylinder (41) is fixed with the lower end surface of the force application block (38);
the upper surface of the installation gradient (36) is provided with a T-shaped horizontal groove (42), and the pushing block (37) is provided with a T-shaped horizontal block (43) which is in sliding fit with the T-shaped horizontal groove (42);
The stress inclined plane (39) of the pushing block (37) is provided with a T-shaped inclined groove (44) in parallel, and the force application block (38) is provided with a T-shaped inclined block (45) which is in sliding fit with the T-shaped inclined groove (44);
A compression spring (46) is arranged between the pushing block (37) and the vertical surface of the installation gradient (36), and the force application block (38) is provided with an avoidance notch (47) for the compression spring (46) to pass through.
2. A full-automatic sharpening machine for twist drills according to claim 1, characterized in that: the triaxial movement device comprises an X-axis feeding seat (21) which is slidably arranged on a machine tool body (1), a Y-axis feeding seat (22) which is slidably arranged on the X-axis feeding seat (21), a vertical seat (23) which is fixedly arranged on the Y-axis feeding seat (22), and a Z-axis feeding seat (24) which is slidably arranged on the vertical seat (23), wherein the clamp seat (31) is fixedly arranged on the Z-axis feeding seat (24); the machine tool body (1), the X-axis feeding seat (21) and the vertical seat (23) are respectively provided with a servo motor screw rod assembly (25) which is used for driving the X-axis feeding seat (21), the Y-axis feeding seat (22) and the Z-axis feeding seat (24).
3. A full-automatic sharpening machine for twist drills according to claim 1, characterized in that: the rear end of the supporting bottom block (34) is provided with an extending supporting plate (48), the extending supporting plate (48) is L-shaped in side view, the vertical section of the extending supporting plate is fixed on the rear end face of the supporting bottom block (34), and the upper surface of the horizontal section of the extending supporting plate and the upper surface of the supporting bottom block (34) are in the same horizontal plane.
4. A full-automatic sharpening machine for twist drills according to claim 1, characterized in that: the output disc of the rotary cylinder (51) is provided with an angle mark (54), and the upper surface of the shell of the rotary cylinder (51) is provided with an angle pointer (55) pointing to the angle mark (54).
5. A full-automatic sharpening machine for twist drills according to claim 1, characterized in that: the power motor (52) is fixedly provided with a housing (56), the housing (56) is provided with a semicircular cover (57), and the semicircular cover (57) is semi-enclosed by the friction wheel (53).
6. The full-automatic grinding machine tool for twist drills of claim 5, wherein: the semicircular cover (57) is provided with a loading plate (58), and the loading plate (58) is provided with an installing hole (59) for fixing the cooling liquid spray head.
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| CN118976913B (en) * | 2024-08-15 | 2025-04-04 | 宁波利浦刃具有限公司 | Twist drill tip turning device |
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