High-precision numerical control machining center

Abstract

The high-precision numerical control machining center comprises a machining base, the upper end of the machining base is movably connected with a first bottom plate and a second bottom plate, the upper end of the first bottom plate is movably connected with a push plate, and a top plate is arranged on the upper side of the second bottom plate; the second bottom plate and the top plate are connected through two guide columns, a clamping mechanism is arranged between the second bottom plate and the top plate, materials are clamped through the clamping mechanism, and a limiting mechanism is fixed to the outer side of the clamping mechanism. Workpiece materials are clamped through the clamping mechanism, through the arrangement of a push plate and a limiting mechanism, when the push plate rapidly makes contact with the limiting mechanism, the limiting mechanism will cancel limiting on a second bottom plate, and at the moment, the push plate will drive the second bottom plate and the clamping mechanism to move; the situation that the tool bit directly makes contact with and collides with a workpiece under rapid movement, and consequently the tool is damaged is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of machining centers, in particular to a high-precision numerical control machining center. BACKGROUND

[0002] As disclosed in Chinese Patent No. CN216029573U, a high-precision numerical control machining center comprises a machining table, a controller, a fixing mechanism, a drilling and milling mechanism and a lifting mechanism, the fixing mechanism comprises a placing table, a driving assembly and two clamping blocks, the lifting mechanism comprises a lifting plate, an adjusting assembly and a measuring assembly, the top of the machining table is symmetrically provided with two supporting plates, the adjusting assembly is arranged between the lifting plate and the machining table, and the measuring assembly is arranged between the lifting plate and one of the supporting plates.

[0003] However, the above-mentioned scheme has the following disadvantages: when the machining center is operated incorrectly or the program is incorrect, the tool is quickly moved towards the workpiece, at this time, since the workpiece is fixed, the tool is directly in contact with the workpiece and hits together, which can cause damage to the tool and cause property loss, therefore, the application provides a high-precision numerical control machining center. SUMMARY

[0004] In view of the deficiencies in the prior art, the application provides a high-precision numerical control machining center to solve the problems in the background art.

[0005] The application is achieved in the following manner: a high-precision numerical control machining center comprises a machining base, the upper end of the machining base is movably connected with a first bottom plate and a second bottom plate, the upper end of the first bottom plate is movably connected with a push plate, the upper side of the second bottom plate is provided with a top plate, the second bottom plate and the top plate are connected with each other through two guide columns, a clamping mechanism is arranged between the second bottom plate and the top plate, the clamping mechanism is used for clamping materials, when the push plate is quickly in contact with a limiting mechanism, the limiting mechanism cancels the limiting of the second bottom plate, at this time, the push plate drives the second bottom plate and the clamping mechanism to move, the upper end of the machining base is fixedly connected with an operation panel, one side of the push plate is movably connected with a chuck, the side, away from the chuck, of the push plate is fixedly connected with a third motor, the output end of the third motor is fixedly connected with the chuck, and a tool head is arranged in the chuck.

[0006] Preferably, the lower end of the first bottom plate is fixedly connected with two sliding blocks and a first T-shaped block, the sliding blocks are slidably connected in sliding grooves, the sliding grooves are arranged at the upper end of the machining base, the first T-shaped block is slidably connected in a first T-shaped groove, the first T-shaped groove is arranged at the upper end of the machining base, a first lead screw is arranged in the first T-shaped groove, one end of the first lead screw is movably connected with the first T-shaped groove, the other end of the first lead screw is fixedly connected with the output end of a first motor, and the first motor is fixedly connected in the machining base.

[0007] Preferably, the second bottom plate lower end is fixedly connected with two second T-shaped blocks, the second T-shaped blocks are slidingly connected in the second T-shaped grooves, and the second T-shaped grooves are arranged on the upper end of the machining base.

[0008] Preferably, the sliding blocks, the first T-shaped block and the second T-shaped block are fixedly connected with baffle plates on both sides, and the baffle plates are slidingly connected in the machining base.

[0009] Preferably, the lower end of the push plate is slidingly connected in the third T-shaped groove, the third T-shaped groove is arranged on the upper end of the first bottom plate, a second lead screw is arranged in the third T-shaped groove, one end of the second lead screw is movably connected with the third T-shaped groove, the other end is fixedly connected with the output end of the second motor, and the second motor is fixedly connected to the outer side of the first bottom plate.

[0010] Preferably, the clamping mechanism comprises a vertical plate, the vertical plate is arranged between the second bottom plate and the top plate and movably connected with the guide column, two clamping plates are arranged on one side of the vertical plate, the lower clamping plate is fixedly connected with the vertical plate, the upper clamping plate is movably connected with the vertical plate, a third lead screw is movably connected with one side of the vertical plate, the third lead screw is movably connected with the upper clamping plate, a transmission motor is fixedly connected with the upper end of the vertical plate, and the output end of the transmission motor is fixedly connected with the third lead screw.

[0011] Preferably, the outer side of the vertical plate is movably connected with a connecting lead screw, the connecting lead screw is movably connected between the top plate and the second bottom plate, a connecting motor is fixedly connected with the upper end of the top plate, and the output end of the connecting motor is fixedly connected with the connecting lead screw.

[0012] Preferably, the limiting mechanism comprises two connecting pipes, the two connecting pipes are fixedly connected at both ends of the vertical plate, a first T-shaped rod is movably connected in the connecting pipe, a first connecting rod is movably connected at one end of the first T-shaped rod, a ball is movably connected at the end of the first connecting rod away from the first T-shaped rod, a limiting screw is movably connected at the upper end of the first T-shaped rod, and the two first connecting rods are connected with each other through a second connecting rod.

[0013] Preferably, the outer side of the vertical plate is movably connected with a connecting lead screw, the connecting lead screw is movably connected between the top plate and the second bottom plate, a connecting motor is fixedly connected with the upper end of the top plate, and the output end of the connecting motor is fixedly connected with the connecting lead screw.

[0014] Preferably, one end of the second T-shaped rod is fixedly connected with a curved rod, one end of the curved rod penetrates through the connecting pipe and extends into the external environment, a lock block is movably sleeved on the outside of the curved rod, the lock block is clamped in a lock groove, the lock groove is arranged on the outside of the machining base, a sliding plate is movably sleeved on the outside of the curved rod, the outside of the sliding plate is in contact with the inner wall of the receiving pipe, a supporting spring is fixedly connected to one end of the sliding plate, and the other end of the supporting spring is fixedly connected to the inner wall of the receiving pipe.

[0015] Compared with the prior art, the beneficial effects of the present application are that the workpiece material is clamped by the clamping mechanism, and when the push plate quickly contacts the limiting mechanism, the limiting mechanism cancels the limiting of the second bottom plate, at which time the push plate drives the second bottom plate and the clamping mechanism to move, preventing the tool head from directly contacting and colliding with the workpiece during rapid movement, thereby preventing tool damage. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the provided drawings.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the connection relationship between the clamping mechanism and the guide column of the present application.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the connection relationship between the vertical plate and the connecting screw rod of the present application.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the connection relationship between the push plate and the third T-shaped groove of the present application.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the connection relationship between the first T-shaped rod and the first connecting rod of the present application.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the position of the lock groove of the present application.

[0023] In the diagram: 1. Machining base; 2. Curved rod; 3. Storage tube; 4. Guide column; 5. Drive motor; 6. Push plate; 7. Cutting head; 8. Chuck; 9. Third motor; 10. Operation panel; 11. Second motor; 12. First base plate; 13. Locking block; 14. Second base plate; 15. Vertical plate; 16. Connecting tube; 17. Limiting screw; 18. Clamping plate; 19. Second T-block; 20. Baffle; 21. Top plate; 22. Second connecting rod; 23. Connecting motor; 24. Connecting lead screw; 25. Third lead screw; 26. Second lead screw; 27. Third T-slot; 28. First T-block; 29. ​​Second T-slot; 30. First lead screw; 31. First motor; 32. Locking groove; 33. Sliding groove; 34. Ball bearing; 35. Sliding cavity; 36. Through hole; 37. Second T-rod; 38. First spring; 39. First connecting rod; 40. Slider; 41. First T-rod; 42. First T-slot; 43. Slide plate; 44. Support spring. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1-6 As shown, the present invention provides a technical solution: Example 1: A high-precision CNC machining center includes a machining base 1. A first base plate 12 and a second base plate 14 are movably connected to the upper end of the machining base 1. Two sliders 40 and a first T-block 28 are fixedly connected to the lower end of the first base plate 12. The sliders 40 slide in a slide groove 33, which is located at the upper end of the machining base 1. The first T-block 28 slides in a first T-groove 42, which is located at the upper end of the machining base 1. A first lead screw 30 is provided in the first T-groove 42. One end of the first lead screw 30 is movably connected to the first T-groove 42, and the other end is fixedly connected to the output end of a first motor 31. The first motor 31 is fixedly connected to the machining base 1 and is a servo motor. The first motor 31 drives the first lead screw 30 to rotate, causing the first T-block 28 to move along the first T-groove 42. At this time, the first base plate 12 will drive the push plate 6 to move. The lower end of the second bottom plate 14 is fixedly connected with two second T-shaped blocks 19, the second T-shaped blocks 19 are slidably connected in the second T-shaped grooves 29, the second T-shaped grooves 29 are arranged on the upper end of the machining base 1, the sliding blocks 40, the first T-shaped blocks 28 and the second T-shaped blocks 19 are fixedly connected with the baffle plates 20 on both sides, the baffle plates 20 are slidably connected in the machining base 1, through the arrangement of the baffle plates 20, the iron filings generated in the cutting of the tool bit 7 are prevented from entering into the second T-shaped grooves 29, the sliding grooves 33 or the first T-shaped grooves 42; The upper end of the first bottom plate 12 is movably connected with the push plate 6, the upper side of the second bottom plate 14 is provided with the top plate 21, the second bottom plate 14 and the top plate 21 are connected with each other through the two guide columns 4, the second bottom plate 14 and the top plate 21 are provided with the clamping mechanism therebetween, the clamping mechanism is used for clamping the material, the clamping mechanism is fixedly provided with the limiting mechanism outside, when the push plate 6 quickly contacts with the limiting mechanism, the limiting mechanism cancels the limiting of the second bottom plate 14, at this time, the push plate 6 drives the second bottom plate 14 and the clamping mechanism to move, the upper end of the machining base 1 is fixedly connected with the operation panel 10, the program can be input through the operation panel 10, so that the corresponding components of the machining center move, high-precision numerical control machining is realized, one side of the push plate 6 is movably connected with the chuck 8, the side, away from the chuck 8, of the push plate 6 is fixedly connected with the third motor 9, the output end of the third motor 9 is fixedly connected with the chuck 8, the chuck 8 is internally provided with the tool bit 7, the third motor 9 is a servo motor, the third motor 9 is controlled by the program to rotate at the set speed, so that the tool bit 7 cuts and machines the material.

[0026] Embodiment 2 On the basis of embodiment 1, in order to avoid the damage caused by the rapid impact of the tool bit 7 to the surface of the material due to the program or operation error, the lower end of the push plate 6 is slidably connected in the third T-shaped groove 27, the third T-shaped groove 27 is arranged on the upper end of the first bottom plate 12, the third T-shaped groove 27 is provided with the second lead screw 26, one end of the second lead screw 26 is movably connected with the third T-shaped groove 27, the other end is fixedly connected with the output end of the second motor 11, the second motor 11 is fixedly connected on the outside of the first bottom plate 12, the second motor 11 is a servo motor, the second motor 11 drives the second lead screw 26 to rotate, so that the push plate 6 moves along the third T-shaped groove 27; The clamping mechanism comprises the vertical plate 15, the vertical plate 15 is arranged between the second bottom plate 14 and the top plate 21 and is movably connected with the guide column 4, one side of the vertical plate 15 is provided with two clamping plates 18, wherein the lower clamping plate 18 is fixedly connected with the vertical plate 15, the upper clamping plate 18 is movably connected with the vertical plate 15, one side of the vertical plate 15 is movably connected with the third lead screw 25, the third lead screw 25 is movably connected with the upper clamping plate 18, the upper end of the vertical plate 15 is fixedly connected with the transmission motor 5, the output end of the transmission motor 5 is fixedly connected with the third lead screw 25.

[0027] The outer side of the vertical plate 15 is movably connected with a connecting screw rod 24 movably connected between the top plate 21 and the second bottom plate 14, and the upper end of the top plate 21 is fixedly connected with a connecting motor 23, and the output end of the connecting motor 23 is fixedly connected with the connecting screw rod 24, and the connecting motor 23 is a servo motor, which drives the connecting screw rod 24 to rotate, so that the connecting screw rod 24 drives the vertical plate 15 to move up and down, and the guide column 4 guides and limits the vertical plate 15, so that the vertical plate 15 does not swing when moving up and down; The limiting mechanism includes two connecting pipes 16 fixedly connected at both ends of the vertical plate 15, a first T-shaped rod 41 movably connected in the connecting pipe 16, a first connecting rod 39 movably connected at one end of the first T-shaped rod 41, a ball 34 movably connected at the end of the first connecting rod 39 away from the first T-shaped rod 41, a limiting screw 17 movably connected at the upper end of the first T-shaped rod 41, and two first connecting rods 39 connected with each other through a second connecting rod 22, so that when one of the first connecting rods 39 contacts and moves with the push plate 6, the other first connecting rod 39 also moves; The opposite surfaces of the two connecting pipes 16 are fixedly connected with receiving pipes 3, the receiving pipes 3 are provided with sliding cavities 35, and the sliding cavities 35 are slidably connected with second T-shaped rods 37, one end of the second T-shaped rod 37 extends into the connecting pipe 16, the first spring 38 is fixedly connected at one end of the second T-shaped rod 37, the other end of the first spring 38 is fixedly connected with the sliding cavity 35, the elastic force of the first spring 38 is greater than that of the supporting spring 44, so as to prevent the sliding plate 43 from moving and driving the curved rod 2 to move, and a plurality of through holes 36 are formed in the second T-shaped rod 37. The end of the second T-shaped rod 37 away from the connecting pipe 16 is fixedly connected with the curved rod 2, one end of the curved rod 2 penetrates through the connecting pipe 16 and extends into the external environment, the outer side of the curved rod 2 movably sleeved with a lock block 13, the lock block 13 is clamped in a lock groove 32 formed on the outer side of the machining base 1, the outer side of the curved rod 2 movably sleeved with a sliding plate 43, the outer side of the sliding plate 43 is in contact with the inner wall of the receiving pipe 3, one end of the sliding plate 43 is fixedly connected with a supporting spring 44, and the other end of the supporting spring 44 is fixedly connected with the inner wall of the receiving pipe 3.

[0028] The working principle is that when in use, the material to be machined is clamped by the clamping mechanism, specifically, the material to be machined is placed between the upper and lower clamping plates 18, after placement, the transmission motor 5 is turned on to drive the third screw rod 25 to rotate, since the upper clamping plate 18 is connected with the third screw rod 25, the upper clamping plate 18 will move downward during the rotation of the third screw rod 25, and at this time the material is clamped between the two clamping plates 18; According to the thickness of the material, the extension length of the first connecting rod 39 is adjusted, so that one end of the first connecting rod 39 is slightly away from the material, specifically, the limiting screw 17 is loosened so that the first connecting rod 39 can move, after adjusting the position of the first connecting rod 39, the limiting screw 17 is tightened again to limit the first connecting rod 39, the cutter head 7 and the chuck 8 are installed together, and the cutting end of the cutter head 7 is flush with the push plate 6, and the corresponding components are operated by inputting the program through the operation panel 10; The second motor 11 drives the second lead screw 26 to rotate, so that the push plate 6 moves along the third T-shaped groove 27, and the first motor 31 drives the first lead screw 30 to rotate, so that the first T-shaped block 28 moves along the first T-shaped groove 42, at this time the first bottom plate 12 drives the push plate 6 to move towards the material, in the conventional state, the cutter head 7 will change from fast movement to slow movement when moving close to the material, at this time the push plate 6 will be in contact with the ball 34 at one end of the first connecting rod 39, with the continuous movement of the push plate 6, the first T-shaped rod 41 will move along the connecting pipe 16, since the connecting pipe 16 is provided with hydraulic oil, at this time the first T-shaped rod 41 slowly moving will push the hydraulic oil into the storage pipe 3 through the through hole 36, the hydraulic oil entering the storage pipe 3 will push the sliding plate 43 to move, the sliding plate 43 moves to compress the supporting spring 44, when the push plate 6 is no longer in contact with the ball 34, at this time the sliding plate 43 returns to the initial position under the elastic force of the supporting spring 44; When the push plate 6 is in contact with the ball 34 and still moves fast, at this time the first T-shaped rod 41 moves along the connecting pipe 16 fast, and since the diameters of the plurality of through holes 36 can only allow the hydraulic oil to pass slowly, when the hydraulic oil is pushed fast, at this time the second T-shaped rod 37 will move fast and compress the first spring 38, the movement of the second T-shaped rod 37 drives the curved rod 2 to move, the movement of the curved rod 2 makes the lock block 13 disengage from the lock groove 32, at this time the second bottom plate 14 is in a movable state, with the continuous movement of the push plate 6, the second bottom plate 14 also drives the vertical plate 15 to move correspondingly, preventing the cutter head 7 from moving fast and colliding with the surface of the material, causing damage to the cutter head 7.

[0029] The above embodiments are only used to help understand the method of the present application and its core idea. It should be noted that for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified, and these improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A high-precision numerical control machining center comprising a machining base, characterized in that: The upper end of the processing base is movably connected with a first bottom plate and a second bottom plate, respectively, the upper end of the first bottom plate is movably connected with a push plate, the upper side of the second bottom plate is provided with a top plate, the second bottom plate and the top plate are connected with each other through two guide columns, a clamping mechanism is arranged between the second bottom plate and the top plate, the clamping mechanism is used for clamping materials, a limiting mechanism is fixedly arranged outside the clamping mechanism, when the push plate quickly contacts with the limiting mechanism, the limiting mechanism cancels the limiting of the second bottom plate, at this time, the push plate drives the second bottom plate and the clamping mechanism to move, the upper end of the processing base is fixedly connected with an operation panel, one side of the push plate is movably connected with a chuck, the side, away from the chuck, of the push plate is fixedly connected with a third motor, the output end of the third motor is fixedly connected with the chuck, and a tool bit is arranged in the chuck.

2. The high-precision numerical control machining center according to claim 1, characterized in that: The lower end of the first bottom plate is fixedly connected with two sliding blocks and a first T-shaped block, respectively, the sliding blocks are slidably connected in sliding grooves, the sliding grooves are arranged at the upper end of the processing base, the first T-shaped block is slidably connected in a first T-shaped groove, and the first T-shaped groove is arranged at the upper end of the processing base, a first lead screw is arranged in the first T-shaped groove, one end of the first lead screw is movably connected with the first T-shaped groove, and the other end is fixedly connected with the output end of a first motor, and the first motor is fixedly connected in the processing base.

3. The high-precision CNC machining center according to claim 1, characterized in that: The lower end of the second bottom plate is fixedly connected with two second T-shaped blocks, the second T-shaped blocks are slidably connected in second T-shaped grooves, and the second T-shaped grooves are arranged at the upper end of the processing base.

4. A high-precision CNC machining center according to claim 2 or 3, characterized in that: The sliding blocks, the first T-shaped block and the second T-shaped block are fixedly connected with baffle plates on both sides, and the baffle plates are slidably connected in the processing base.

5. The high-precision CNC machining center according to claim 1, characterized in that: The lower end of the push plate is slidably connected in a third T-shaped groove, the third T-shaped groove is arranged at the upper end of the first bottom plate, a second lead screw is arranged in the third T-shaped groove, one end of the second lead screw is movably connected with the third T-shaped groove, and the other end is fixedly connected with the output end of a second motor, and the second motor is fixedly connected outside the first bottom plate.

6. The high-precision CNC machining center according to claim 1, characterized in that: The clamping mechanism comprises a vertical plate, the vertical plate is arranged between the second bottom plate and the top plate and is movably connected with the guide columns, two clamping plates are arranged on one side of the vertical plate, the lower clamping plate is fixedly connected with the vertical plate, the upper clamping plate is movably connected with the vertical plate, a third lead screw is movably connected with one side of the vertical plate, the third lead screw is movably connected with the upper clamping plate, a transmission motor is fixedly connected with the upper end of the vertical plate, and the output end of the transmission motor is fixedly connected with the third lead screw.

7. A high-precision CNC machining center according to claim 6, characterized in that: The outer side of the vertical plate is movably connected with a connecting lead screw, the connecting lead screw is movably connected between the top plate and the second bottom plate, a connecting motor is fixedly connected with the upper end of the top plate, and the output end of the connecting motor is fixedly connected with the connecting lead screw.

8. The high-precision CNC machining center according to claim 1, characterized in that: The limiting mechanism comprises two connecting pipes, the two connecting pipes are fixedly connected at both ends of the vertical plate, a first T-shaped rod is movably connected in the connecting pipe, a first connecting rod is movably connected at one end of the first T-shaped rod, a plurality of rolling balls are movably connected in the first connecting rod away from the first T-shaped rod, a limiting screw is movably connected at the upper end of the first T-shaped rod, and the two first connecting rods are connected with each other through a second connecting rod.

9. A high-precision CNC machining center according to claim 8, characterized in that: Both said connecting pipes are fixedly connected with receiving tubes on opposite sides, sliding cavities are formed in the receiving tubes, second T-shaped rods are slidably connected in the sliding cavities, one end of each second T-shaped rod extends into a connecting pipe, first springs are fixedly connected to one end of each second T-shaped rod, the other end of each first spring is fixedly connected to a sliding cavity, a plurality of through holes are formed in each second T-shaped rod.

10. The high-precision CNC machining center according to claim 9, characterized in that: One end of a curved rod is fixedly connected to the end of each second T-shaped rod away from the connecting pipe, the curved rod extends through the connecting pipe and into the external environment, a lock block is movably sleeved on the outside of the curved rod, the lock block is clamped in a lock groove, the lock groove is formed on the outside of the machining base, a sliding plate is movably sleeved on the outside of the curved rod, the outside of the sliding plate is in contact with the inner wall of the receiving tube, a supporting spring is fixedly connected to one end of the sliding plate, the other end of the supporting spring is fixedly connected to the inner wall of the receiving tube.

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