CN113352145A

CN113352145A - Automatic feeding precision compensation mechanism of numerical control machine tool

Info

Publication number: CN113352145A
Application number: CN202110745491.2A
Authority: CN
Inventors: 江美平
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-09-07

Abstract

The invention discloses an automatic feeding precision compensation mechanism of a numerical control machine tool, which comprises a connecting plate for mounting a structure and a tool clamp arranged at the top of the connecting plate and used for clamping a workpiece, wherein the top of the connecting plate is fixedly connected with a supporting frame, the top of the connecting plate is fixedly connected with a transmission motor positioned in the supporting frame, the output end of the transmission motor is fixedly connected with a structure used for driving a screw rod to rotate, the top of the connecting plate is movably connected with the screw rod through a bearing, the top end of the screw rod sequentially penetrates through the supporting frame and the tool clamp and extends into the tool clamp, the tool clamp is in threaded connection with the screw rod, and the left side of the supporting frame is fixedly connected with a structure used for measuring a compensation numerical value; the problem of current compensation mode adjust through the cutter vertical height more, this kind of mode response efficiency is poor, and the operator can't be mastered the distance that the main shaft was extended to the cutter, influences product material loading compensation precision is solved.

Description

Automatic feeding precision compensation mechanism of numerical control machine tool

Technical Field

The invention relates to the technical field of numerical control machines, in particular to an automatic feeding precision compensation mechanism of a numerical control machine.

Background

Digit control machine tool need carry out the material loading compensation to its machined height according to material installation height after the material loading finishes, and present compensation mode is many through adjusting cutter vertical height, and this kind of mode response efficiency is poor, and the operator can't be mastered the distance that the main shaft was extended to the cutter, influences product material loading compensation precision.

Disclosure of Invention

In order to solve the problems in the background art, the invention aims to provide an automatic feeding precision compensation mechanism for a numerical control machine tool, which has the advantage of improving the feeding compensation precision and solves the problems that the response efficiency of the conventional compensation mode is poor because the vertical height of a cutter is adjusted, and the distance of the cutter extending out of a main shaft cannot be controlled by an operator, so that the feeding compensation precision of a product is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: an automatic feeding precision compensation mechanism of a numerical control machine tool comprises a connecting plate for mounting a structure;

the tool clamp is arranged at the top of the connecting plate and used for clamping a workpiece;

the top fixedly connected with carriage of connecting plate, the top fixedly connected with of connecting plate is located the inside transmission motor of carriage, transmission motor's output fixedly connected with is used for driving the rotatory structure of screw rod, there is the screw rod at the top of connecting plate through bearing swing joint, the inside that carriage and frock clamp and extend to frock clamp is run through in proper order on the top of screw rod, frock clamp and screw rod threaded connection, the left side fixedly connected with of carriage is used for carrying out the measured structure to compensation numerical value.

Preferably, the structure for measuring the compensation value is a measuring box fixed to the left side of the support frame, the top of the supporting frame is fixedly connected with an air bag, the top of the air bag is fixedly connected with the bottom of the tool clamp, the left side of the air bag is communicated with a connecting pipe, one end of the connecting pipe, which is far away from the air bag, is communicated with the inner wall of the measuring box, the top of the measuring box is open, the interior of the measuring box is connected with a piston positioned at the top of the connecting pipe in a sliding way, the top of the piston is fixedly connected with a balancing weight, the left side of the measuring box is fixedly connected with a photosensitive component, the photosensitive component is electrically connected with the transmission motor, the left side of the measuring box is provided with a shielding block positioned on the front side of the photosensitive component, the blocking piece and the balancing weight are mutually attracted, the blocking piece and the balancing weight are both magnetic, and a structure for limiting and guiding the tool fixture is arranged on the right side of the measuring box.

Preferably, the top of the inner wall of the measuring box is fixedly connected with a pressure spring, and one side of the pressure spring, which is far away from the measuring box, is in contact with the top of the balancing weight.

Preferably, the structure for limiting and guiding the tool fixture is a sliding groove formed in the right side of the measuring box, the left side of the tool fixture is fixedly connected with a sliding block located in the sliding groove, and the sliding block is connected with the sliding groove in a sliding mode.

Preferably, the top of the balancing weight is fixedly connected with a guide pipe, the top end of the guide pipe penetrates through the measuring box and extends to the top of the measuring box, the guide pipe is connected with the measuring box in a sliding mode, a through hole is formed in the surface of the guide pipe, and the compression spring is sleeved on the surface of the guide pipe.

Preferably, the left side of the measuring box is provided with a trapezoidal groove, the right side of the blocking piece is fixedly connected with a trapezoidal block positioned in the trapezoidal groove, the trapezoidal block is connected with the trapezoidal groove in a sliding manner, and the trapezoidal block and the blocking piece are made of the same material and have magnetism.

Preferably, the structure for driving the screw rod to rotate is a worm fixed at the output end of the transmission motor, the surface of the screw rod is fixedly connected with a worm wheel positioned on the front surface of the worm, and the worm wheel are meshed with each other.

Preferably, the top of the connecting plate is fixedly connected with a bracket sleeved on the surface of the worm, and the top of the bracket is in contact with the inner surface of the supporting frame.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the tool clamp, the structure for measuring the compensation value is arranged, the compensation accuracy of the tool clamp can be improved, a user can conveniently and flexibly observe the compensation value, the structure for driving the screw rod to rotate is arranged, the automation level of the compensation mechanism can be improved, the operation steps of manually rotating the screw rod are saved, and the problems that the vertical height of the tool is mostly adjusted in the conventional compensation mode, the mode is poor in response efficiency, the distance of the tool extending out of the main shaft cannot be mastered by the operator, and the product feeding compensation accuracy is influenced are solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic cross-sectional view of a front view structure provided in the first embodiment and the fourth embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure diagram provided in the second embodiment and the third embodiment of the present invention;

FIG. 4 is a schematic perspective view of the structure for measuring the compensation value according to the present invention;

FIG. 5 is a perspective view of a portion of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

fig. 7 is an enlarged schematic structural diagram of a point B in fig. 3 according to a third embodiment of the present invention;

FIG. 8 is a right-view diagram of a partial structure according to a fourth embodiment of the present invention;

FIG. 9 is an enlarged view of the structure of FIG. 7 at C according to the present invention;

FIG. 10 is an enlarged view of the structure shown in FIG. 8 at D according to the present invention.

In the figure: 1. a connecting plate; 2. a tooling fixture; 3. a support frame; 4. a drive motor; 5. a screw; 6. a measuring box; 7. an air bag; 8. a connecting pipe; 9. a piston; 10. a balancing weight; 11. a photosensitive assembly; 12. a stop block is shielded; 13. a pressure spring; 14. a chute; 15. a slider; 16. a guide tube; 17. a through hole; 18. a trapezoidal groove; 19. a trapezoidal block; 20. a worm; 21. a worm gear; 22. a support; 23. an opening; 24. hooking; 25. an infrared range finder; 26. a bolt; 27. a sleeve; 28. a vertical plate; 29. a shaft lever; 30. a guide plate; 31. an adhesive tape; 32. a hauling rope; 33. a limiting ball; 34. positioning holes; 35. a spring; 36. a limiting block; 37. a movable block; 38. a pin shaft; 39. a torsion spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The invention provides an automatic feeding precision compensation mechanism of a numerical control machine tool, which comprises a connecting plate 1 for mounting a structure;

the tool clamp 2 is arranged at the top of the connecting plate 1 and used for clamping a workpiece;

top fixedly connected with carriage 3 of connecting plate 1, the top fixedly connected with of connecting plate 1 is located the inside transmission motor 4 of carriage 3, transmission motor 4's output fixedly connected with is used for driving the rotatory structure of screw rod 5, there is screw rod 5 at the top of connecting plate 1 through bearing swing joint, the top of screw rod 5 runs through carriage 3 and frock clamp 2 in proper order and extends to the inside of frock clamp 2,

frock clamp

2 and 5 threaded connection of screw rod, the left side fixedly connected with of carriage 3 is used for carrying out the measuring structure to compensation numerical value.

Referring to fig. 6, a structure for measuring compensation value is fixed at the left measuring box 6 of carriage 3, the top fixedly connected with gasbag 7 of carriage 3, the top of gasbag 7 and the bottom fixed connection of frock clamp 2, the left side intercommunication of gasbag 7 has connecting pipe 8, the one end that gasbag 7 was kept away from to connecting pipe 8 communicates with the inner wall of measuring box 6, the top of measuring box 6 sets up to open form, the inside sliding connection of measuring box 6 has the piston 9 that is located the top of connecting pipe 8, the top fixedly connected with balancing weight 10 of piston 9, the left side fixedly connected with photosensitive component 11 of measuring box 6, photosensitive component 11 is connected with drive machine 4 electricity, the left side of measuring box 6 is provided with the positive piece 12 that shelters from that is located photosensitive component 11, the piece 12 attracts each other with balancing weight 10, the piece 12 all has magnetism with balancing weight 10, the right side of measuring box 6 is provided with the structure that is used for carrying out spacing direction to.

As a technical optimization scheme of the invention, by arranging the measuring box 6, the air bag 7, the piston 9, the shielding block 12 and the photosensitive assembly 11, the compensation reaction speed can be greatly improved, the measuring device which can generate temperature aggregation in the working process is replaced, and the operation steps of additionally installing a heat dissipation structure are saved.

Referring to fig. 6, a pressure spring 13 is fixedly connected to the top of the inner wall of the measurement box 6, and one side of the pressure spring 13, which is far away from the measurement box 6, is in contact with the top of the counterweight 10.

As a technical optimization scheme of the invention, the counter weight 10 can be supported by arranging the pressure spring 13, so that the piston 9 has the effect of quick resetting function, and the airflow revolution efficiency is improved.

Referring to fig. 1, the structure for limiting and guiding the tooling fixture 2 is a sliding groove 14 formed in the right side of the measuring box 6, a sliding block 15 located inside the sliding groove 14 is fixedly connected to the left side of the tooling fixture 2, and the sliding block 15 is slidably connected with the sliding groove 14.

As a technical optimization scheme of the invention, the tool clamp 2 can be guided by arranging the sliding chute 14 and the sliding block 15, so that the phenomenon that the tool clamp 2 rotates along with the screw rod 5 in the moving process is avoided.

Referring to fig. 6, a guide tube 16 is fixedly connected to the top of the counterweight block 10, the top end of the guide tube 16 penetrates through the measurement box 6 and extends to the top of the measurement box 6, the guide tube 16 is slidably connected to the measurement box 6, a through hole 17 is formed in the surface of the guide tube 16, and the pressure spring 13 is sleeved on the surface of the guide tube 16.

As a technical optimization scheme of the invention, the guide pipe 16 is arranged, so that the piston 9 can be limited, the movement stability of the piston 9 is improved, meanwhile, the guide pipe 16 can support the pressure spring 13, the pressure spring 13 can conveniently store deformation force, and the through hole 17 can enable a top cavity of the measuring box 6 to be communicated with the outside, so that the internal air pressure of the measuring box 6 is maintained to be stable.

Referring to fig. 6, a trapezoidal groove 18 is formed in the left side of the measuring box 6, a trapezoidal block 19 located inside the trapezoidal groove 18 is fixedly connected to the right side of the blocking piece 12, the trapezoidal block 19 is slidably connected to the trapezoidal groove 18, and the trapezoidal block 19 and the blocking piece 12 are made of the same material and have magnetism.

As a technical optimization scheme of the present invention, the blocking block 12 can be limited by providing the trapezoidal groove 18 and the trapezoidal block 19, so that the blocking block 12 and the measuring box 6 are integrated, and the blocking block 12 is prevented from being separated from the measuring box 6.

Referring to fig. 2, the structure for driving the screw 5 to rotate is a worm 20 fixed at the output end of the transmission motor 4, a worm wheel 21 located on the front surface of the worm 20 is fixedly connected to the surface of the screw 5, and the worm 20 and the worm wheel 21 are engaged with each other.

As a technical optimization scheme of the invention, the worm 20 and the worm wheel 21 are arranged, so that the compensation precision of the tool clamp 2 can be improved, the transmission efficiency of the worm wheel 21 and the worm 20 is high, and the phenomenon of rotation can be avoided.

Referring to fig. 2, a bracket 22 is fixedly connected to the top of the connecting plate 1 and is sleeved on the surface of the worm 20, and the top of the bracket 22 is in contact with the inner surface of the supporting frame 3.

As a technical optimization scheme of the invention, the support 22 is arranged, so that the worm 20 and the support frame 3 can be simultaneously supported, the contact area between the worm 20 and the connecting plate 1 can be increased, and the phenomenon that the support frame 3 deforms due to overhigh bearing is avoided.

Example two

As shown in fig. 7, in the second embodiment, other structures are not changed, the present invention provides another structure for measuring a compensation value, including an opening 23 formed at the top of a tooling fixture 2, a hook 24 is slidably connected inside the opening 23, one side of the hook 24 away from the opening 23 penetrates through the opening 23 and extends to the left side of the tooling fixture 2, an infrared distance meter 25 located at the left side of the tooling fixture 2 is arranged at the bottom of the hook 24, the infrared distance meter 25 and the tooling fixture 2 are arranged in parallel and perpendicular to each other, a bolt 26 is arranged at the top of the hook 24, the bottom end of the bolt 26 sequentially penetrates through the hook 24 and the infrared distance meter 25 and extends to the inside of the infrared distance meter 25, the bolt 26 is in threaded connection with the hook 24, the bolt 26 is movably connected with the infrared distance meter 25 through a movable connection device, positioning holes 34 are formed on the surfaces of the tooling fixture 2 and the hook 24, a spring 35 located inside the positioning hole 34 is fixedly connected inside the tooling fixture 2, one side of the spring 35 far away from the tooling fixture 2 is fixedly connected with a limiting block 36 positioned inside the hook 24.

During the use, driving motor 4 drives worm wheel 21 through worm 20 and rotates, worm wheel 21 drives screw rod 5 rotatory and promote frock clamp 2 through the screw on screw rod 5 surface and move down, frock clamp 2 drives infrared distance meter 25 and removes and make the interval between its and the work platform reduce in the removal process, infrared distance meter 25 carries out real time monitoring to frock clamp 2's displacement, when frock clamp 2 reachs suitable compensation height, infrared distance meter 25 control driving motor 4 closes, thereby reach the effect that improves material loading height compensation precision and response time.

EXAMPLE III

As shown in fig. 7, in the third embodiment, other structures are not changed, the present invention provides another structure for limiting and guiding the tooling fixture 2, including a sleeve 27 fixed on the left side of the supporting frame 3, the top end of the sleeve 27 extends upward to the left side of the tooling fixture 2, the infrared distance meter 25 is located inside the sleeve 27 and contacts with the inner surface of the sleeve 27, and the infrared distance meter 25 can be connected inside the sleeve 27 in a sliding manner up and down.

During the use, driving motor 4 drives worm wheel 21 rotatory through worm 20, worm wheel 21 drives screw rod 5 rotatory and promote frock clamp 2 downstream through the screw on screw rod 5 surface, frock clamp 2 drives infrared distance meter 25 in the removal process and removes and make its and work platform between the interval reduce, sleeve pipe 27 can protect infrared distance meter 25 simultaneously, reduce the influence that outside light caused infrared distance meter 25's measurement, sleeve pipe 27 can be spacing to infrared distance meter 25 simultaneously, frock clamp 2 of avoiding installing infrared distance meter 25 appears rotatory phenomenon at the lift in-process.

Example four

As shown in fig. 8, in the fourth embodiment, other structures are not changed, the present invention provides a structure for guiding and cleaning debris, including vertical plates 28 fixed on both sides of a tooling fixture 2, an inner side of the vertical plate 28 is movably connected with a shaft lever 29, a surface of the shaft lever 29 is fixedly connected with a guide plate 30, one side of the guide plate 30 away from the shaft lever 29 extends outward and contacts with a top of a support frame 3, one side of the guide plate 30 away from the shaft lever 29 is provided with a rubber strip 31, an inner side of the guide plate 30 is provided with a traction rope 32, the traction rope 32 has elasticity, both ends of the traction rope 32 penetrate through the outer side of the guide plate 30 and are fixedly connected with a limit ball 33, the rubber strip 31 and the top of the guide plate 32 are both fixedly connected with movable blocks 37, the movable blocks 37 are movably connected through a pin 38, the inner side of the movable blocks 37 is provided with a torsion spring 39 sleeved on the surface of the pin 38, and both ends of the torsion spring 39 respectively contact with the rubber strip 31 and the top of the guide plate 32.

During the use, the transmission motor 4 drives the worm wheel 21 through the worm 20 and rotates, the worm wheel 21 drives the screw rod 5 to rotate and pushes the tool clamp 2 to move downwards through the screw thread on the surface of the screw rod 5, the tool clamp 2 utilizes the top of the support frame 3 to extrude the guide plate 30 in the moving process, the guide plate 30 uses the shaft rod 29 as an axis to turn around in opposite directions and pushes chips dropped to the top of the support frame 3 to the outside of the support frame 3, the chips are prevented from influencing the lifting of the tool clamp 2, and in the lifting process of the tool clamp 2, the traction rope 32 can utilize deformation force to pull the two guide plates 30 to move inwards, and gaps are prevented from appearing between the guide plates 30 and the support frame 3.

The working principle and the using process of the invention are as follows: when the tool clamp is used, a user installs a workpiece inside the tool clamp 2, after the workpiece is installed, the transmission motor 4 drives the worm wheel 21 to rotate through the worm 20, the worm wheel 21 drives the screw rod 5 to rotate and pushes the tool clamp 2 to move downwards through threads on the surface of the screw rod 5, the tool clamp 2 extrudes the air bag 7 in the moving process, air inside the air bag 7 is injected into the measuring box 6 through the connecting pipe 8 and increases the air pressure at the bottom of the piston 9, the piston 9 is subjected to pressure rise and synchronously moves through the shielding block 12 outside the measuring box 6 under the magnetic attraction of the balancing weight 10, the shielding block 12 can block partial area of the photosensitive assembly 11, meanwhile, the photosensitive assembly 11 can collect data of the unblocked part to be compared with data inside the cloud server, when the tool clamp 2 reaches a proper compensation height, the photosensitive assembly 11 controls the transmission motor 4 to be closed, thereby achieving the effect of improving the feeding height compensation precision and the response time.

In summary, the following steps: according to the automatic feeding precision compensation mechanism of the numerical control machine tool, as the structure for measuring the compensation value is arranged, the compensation accuracy of the tool clamp 2 can be improved, and a user can flexibly observe the compensation value; owing to set up and be used for driving screw rod 5 and carry out the structure of rotation, so can improve compensation mechanism's automatic level, save artifical rotatory screw rod 5's operating procedure, solved current compensation mode and adjusted through the cutter vertical height more, this kind of mode response efficiency is poor, the operator can't master the distance that the main shaft was extended to the cutter, influences the problem of product material loading compensation precision.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automatic feeding precision compensation mechanism of a numerical control machine tool comprises a connecting plate (1) for mounting a structure;

the tool clamp (2) is arranged at the top of the connecting plate (1) and used for clamping a workpiece;

the method is characterized in that: the top fixedly connected with carriage (3) of connecting plate (1), the top fixedly connected with of connecting plate (1) is located inside transmission motor (4) of carriage (3), the output fixedly connected with of transmission motor (4) is used for driving the rotatory structure of screw rod (5), there is screw rod (5) at the top of connecting plate (1) through bearing swing joint, the top of screw rod (5) runs through carriage (3) and frock clamp (2) in proper order and extends to the inside of frock clamp (2), frock clamp (2) and screw rod (5) threaded connection, the left side fixedly connected with of carriage (3) is used for carrying out measuring structure to compensation numerical value.

2. The automatic feeding precision compensation mechanism of the numerical control machine tool according to claim 1, characterized in that: the structure for measuring the compensation value is a measuring box (6) fixed on the left side of a supporting frame (3), the top of the supporting frame (3) is fixedly connected with an air bag (7), the top of the air bag (7) is fixedly connected with the bottom of a tool fixture (2), the left side of the air bag (7) is communicated with a connecting pipe (8), one end, far away from the air bag (7), of the connecting pipe (8) is communicated with the inner wall of the measuring box (6), the top of the measuring box (6) is arranged to be open, a piston (9) positioned at the top of the connecting pipe (8) is slidably connected inside the measuring box (6), the top of the piston (9) is fixedly connected with a balancing weight (10), the left side of the measuring box (6) is fixedly connected with a photosensitive component (11), the photosensitive component (11) is electrically connected with a transmission motor (4), a blocking block (12) positioned on the front side of the photosensitive component (11) is arranged on the left side of the measuring box (6), the blocking piece (12) and the balancing weight (10) are mutually attracted, the blocking piece (12) and the balancing weight (10) are both magnetic, and a structure for limiting and guiding the tool clamp (2) is arranged on the right side of the measuring box (6).

3. The automatic feeding precision compensation mechanism of the numerical control machine tool according to claim 2, characterized in that: the top of the inner wall of the measuring box (6) is fixedly connected with a pressure spring (13), and one side, far away from the measuring box (6), of the pressure spring (13) is in contact with the top of the balancing weight (10).

4. The automatic feeding precision compensation mechanism of the numerical control machine tool according to claim 2, characterized in that: the structure for limiting and guiding the tool clamp (2) is a sliding groove (14) formed in the right side of the measuring box (6), a sliding block (15) located inside the sliding groove (14) is fixedly connected to the left side of the tool clamp (2), and the sliding block (15) is in sliding connection with the sliding groove (14).

5. The automatic feeding precision compensation mechanism of the numerical control machine tool according to claim 3, characterized in that: the top fixedly connected with stand pipe (16) of balancing weight (10), the top of stand pipe (16) runs through measurement case (6) and extends to the top of measurement case (6), stand pipe (16) and measurement case (6) sliding connection, through-hole (17) have been seted up on the surface of stand pipe (16), pressure spring (13) cover is established on the surface of stand pipe (16).

6. The automatic feeding precision compensation mechanism of the numerical control machine tool according to claim 2, characterized in that: trapezoidal groove (18) have been seted up to the left side of measuring case (6), the right side fixedly connected with that hides dog (12) is located trapezoidal groove (18) inside trapezoidal piece (19), trapezoidal piece (19) and trapezoidal groove (18) sliding connection, trapezoidal piece (19) are the same with the material that shelters from dog (12) and have magnetism.

7. The automatic feeding precision compensation mechanism of the numerical control machine tool according to claim 1, characterized in that: the structure for driving the screw rod (5) to rotate is a worm (20) fixed at the output end of the transmission motor (4), the surface of the screw rod (5) is fixedly connected with a worm wheel (21) positioned on the front surface of the worm (20), and the worm (20) is meshed with the worm wheel (21).

8. The automatic feeding precision compensation mechanism of the numerical control machine tool according to claim 7, characterized in that: the top of the connecting plate (1) is fixedly connected with a support (22) sleeved on the surface of the worm (20), and the top of the support (22) is in contact with the inner surface of the supporting frame (3).