Numerical control milling machine capable of correcting workpiece

Abstract

The utility model provides a numerical control milling machine capable of correcting workpieces, which relates to the field of numerical control milling machines and comprises a numerical control milling machine body, a control box is mounted on the outer side of the numerical control milling machine body, a base is connected to the lower end of the numerical control milling machine body, and a workbench is slidably connected to the upper end of the base. A first clamping block and a second clamping block are slidably connected to the upper side of the workbench, hydraulic rods are connected to the outer side of the first clamping block and the outer side of the second clamping block, a movable block is slidably connected to the end face of the inner side of the second clamping block, mounting plates are connected to the two ends of the workbench, and infrared distance measuring sensors are mounted on the end faces of the inner sides of the mounting plates. And induction plates are arranged on the outer side end surfaces of the first clamping block and the second clamping block. The numerical control milling machine solves the problems that an existing numerical control milling machine does not have the function of correcting the appearance of a workpiece, and an adjusting mechanism for the position of the workpiece is relatively complex.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC milling machines, and particularly relates to a CNC milling machine capable of correcting workpieces. Background Technique

[0002] Vertical CNC milling machines are usually used for machining disc, sleeve, and plate parts. After retrieval, the prior art (publication number: CN213828010U) records "a CNC milling machine with a high-precision correction device, including a milling machine fixed seat, a workpiece placement table, a fixed correction block, an adjustment mechanism, a sliding correction block, a workpiece, and a milling machine milling shaft. The workpiece placement table is arranged at the upper end of the milling machine fixed seat, the fixed correction block is arranged at the right end of the workpiece placement table, the adjustment mechanism is arranged at the right end of the workpiece placement table, the adjustment mechanism is connected to the sliding correction block, the workpiece is arranged between the sliding correction block and the fixed correction block, and the milling machine milling shaft is arranged directly above the workpiece; rotating the rotating disk makes the worm rotate, and the worm makes the slider translate linearly, thereby moving the sliding correction block and the fixed correction block closer to fix the workpiece. The adjustment mechanism not only plays a role in fixing the workpiece, but also can adjust the distance between the sliding correction block and the fixed correction block according to the size of the workpiece, enabling the device to adapt to workpieces of various sizes for machining."

[0003] Although the CNC milling machine with a high-precision correction device in the prior art realizes the fixation of workpieces of different sizes, there are still some deficiencies: before milling the workpiece, the workpiece may be deformed and cannot be accurately milled due to deformation, so its shape needs to be corrected. However, the workpiece fixture on the workbench of the existing CNC milling machine only has a single clamping and fixing effect and lacks the function of correcting the outer shape of the workpiece. Secondly, after clamping the workpiece, the position of the workpiece needs to be adjusted. The existing CNC milling machine cannot achieve the position adjustment of the workpiece through the clamping device itself. Generally, a linear drive structure for longitudinal and transverse movement needs to be provided at the lower end of the workbench, resulting in a relatively complex structure and increased cost. Summary of the Utility Model

[0004] In order to overcome the defects existing in the prior art, a CNC milling machine capable of correcting workpieces is provided to solve the problems that the existing CNC milling machine lacks the function of correcting the outer shape of the workpiece and the adjustment mechanism for the position of the workpiece is relatively complex.

[0005] To achieve the above object, a numerically controlled milling machine capable of correcting workpieces is provided, including: a numerically controlled milling machine main body, a control box is installed outside the numerically controlled milling machine main body, the lower end of the numerically controlled milling machine main body is connected to a base, and a workbench is slidably connected to the upper end of the base. A first clamping block and a second clamping block are slidably connected to the upper side of the workbench, hydraulic rods are connected to the outer sides of the first clamping block and the second clamping block, and a movable block is slidably connected to the inner end face of the second clamping block. Installation plates are connected to both ends of the workbench, an infrared distance measuring sensor is installed on the inner end face of the installation plate, and induction plates are arranged on the outer end faces of the first clamping block and the second clamping block.

[0006] Further, a set of parallel first guiding grooves are opened at the upper end of the base, a second guiding groove is provided between the first guiding grooves, and a lead screw is rotatably connected inside the second guiding groove.

[0007] Further, a slider is slidably connected in the second guiding groove, the lead screw passes through the slider and is screwed to the slider, and a crank is connected to the front end of the lead screw.

[0008] Further, a set of parallel third guiding grooves are opened at the upper end of the workbench, and the lower ends of the first clamping block and the second clamping block are slidably connected to the third guiding grooves through connected guiding blocks.

[0009] Further, a movable groove is opened at the inner end of the second clamping block, the movable block is slidably connected in the movable groove, a horizontal elastic telescopic rod is provided at the bottom of the inner groove of the movable groove and connected to the inner end face of the movable block, and limiting blocks are provided on the inner groove walls on the upper and lower sides of the movable groove, and the limiting blocks and the elastic telescopic rod are on the same side of the movable block.

[0010] Further, an electric push rod is installed on the outer end face of the second clamping block, a magnetic attraction block is connected to the piston rod end of the electric push rod, and the magnetic attraction block is located inside the movable groove.

[0011] Further, the installation plate is of an L-shaped structure, the hydraulic rod is horizontally fixed on the inner end face of the installation plate, and the infrared distance measuring sensor inside the installation plate and the induction plate are on the same horizontal line.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. During use, when the workpiece to be processed is deformed, the angle of the workpiece is adjusted, and the hydraulic rod is started to clamp the workpiece between the movable block and the first clamping block. At this time, the outer side of the movable block is flush with the end face of the second clamping block, and the movable block is attracted by the magnetic block. Then, the hydraulic rod is started again, so that the pressure between the first clamping block and the movable block corrects the workpiece. The corrected workpiece is then adjusted to a horizontal position through the crank on the outside of the base, and then the infrared ranging sensor and the induction plate are used to make one of the two hydraulic rods retract and the other extend to adjust the longitudinal position of the workpiece, thereby realizing that the clamping device itself has the function of adjusting the position of the workpiece and the function of correcting the deformed workpiece.

[0014] 2. For a normal workpiece, first start the electric push rod to retract outward so that the movable block supported by the limit block is separated from the magnetic block, and then use the elastic telescopic rod to pop out the movable block a certain distance to the side of the first clamping block. At this time, the workpiece is clamped between the movable block and the first clamping block to avoid hard contact with the workpiece during the clamping process, which may cause damage to the workpiece. (This clamping method can also be used for workpieces that have been calibrated), thereby protecting the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the top view of the base structure of an embodiment of the utility model.

[0017] Figure 3 For the embodiment of the utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0018] Figure 4 This is a schematic diagram of the top view of the workbench structure of an embodiment of the present utility model.

[0019] In the figure: 1. CNC milling machine body; 2. Control box; 3. Base; 31. First guide groove; 32. Second guide groove; 33. Slider; 34. Screw rod; 35. Crank handle; 4. Workbench; 41. First clamping block; 42. Second clamping block; 421. Movable block; 422. Induction plate; 423. Movable groove; 424. Elastic telescopic rod; 425. Electric push rod; 426. Magnetic block; 427. Limit block; 43. Third guide groove; 44. Hydraulic rod; 45. Mounting plate; 46. Infrared ranging sensor. DETAILED DESCRIPTION

[0020] Reference Figures 1 to 4As shown in the figure, the utility model provides a numerical control milling machine capable of correcting workpieces, including: a numerical control milling machine main body 1, a control box 2 is installed outside the numerical control milling machine main body 1, and the lower end of the numerical control milling machine main body 1 is connected with a base 3, and a workbench 4 is slidably connected to the upper end of the base 3. A group of parallel first guide grooves 31 are opened at the upper end of the base 3, and a second guide groove 32 is provided between the first guide grooves 31. A lead screw 34 is rotatably connected inside the second guide groove 32. A slider 33 is slidably connected in the second guide groove 32, and the lead screw 34 penetrates through the slider 33 and is screwed with the slider 33. At the same time, a crank 35 is connected to the front end of the lead screw 34. A first clamping block 41 and a second clamping block 42 are slidably connected to the upper side of the workbench 4. Hydraulic rods 44 are connected to the outer sides of the first clamping block 41 and the second clamping block 42. An active block 421 is slidably connected to the inner end face of the second clamping block 42. Installation plates 45 are connected to both ends of the workbench 4, and infrared distance sensors 46 are installed on the inner end faces of the installation plates 45. Induction plates 422 are provided on the outer end faces of the first clamping block 41 and the second clamping block 42.

[0021] Specifically, arc-shaped grooves are provided on the opposite sides of the first clamping block 41 and the active block 421, which facilitates the stable clamping of cylindrical or spherical-like workpieces.

[0022] Specifically, a reflective infrared material coating is provided on the surface of the induction plate 422, so that when adjusting the position of the workpiece through the infrared distance sensor 46, the distances between the first clamping block 41 and the second clamping block 42 and the installation plates 45 on their respective sides can be measured in real time. Through the outer control box 2, synchronous movement of one hydraulic rod 44 extending and one hydraulic rod 44 contracting can be realized, and thus linear position adjustment of the workpiece can be achieved.

[0023] As Figure 2 and Figure 4 shown in the figure, a group of parallel third guide grooves 43 are opened at the upper end of the workbench 4. The lower ends of the first clamping block 41 and the second clamping block 42 are slidably connected to the third guide grooves 43 through connected guide blocks. An active groove 423 is opened at the inner end of the second clamping block 42, and the active block 421 is slidably connected in the active groove 423. A horizontal elastic telescopic rod 424 is provided at the bottom of the inner groove of the active groove 423 and is connected to the inner end face of the active block 421. At the same time, limit blocks 427 are provided on the upper and lower inner groove walls of the active groove 423, and the limit blocks 427 and the elastic telescopic rod 424 are on the same side of the active block 421. An electric push rod 425 is installed on the outer end face of the second clamping block 42, and a magnetic attraction block 426 is connected to the piston rod end of the electric push rod 425, and the magnetic attraction block 426 is located inside the active groove 423. The installation plate 45 is of an L-shaped structure, and the hydraulic rod 44 is horizontally fixed on the inner end face of the installation plate 45. At the same time, the infrared distance sensor 46 inside the installation plate 45 and the induction plate 422 are on the same horizontal line.

[0024] Specifically, the movable block 421 still maintains a sliding connection with the movable groove 423 when the elastic telescopic rod 424 is fully expanded, wherein the elastic telescopic rod 424 includes a sliding rod inserted into the sleeve rod, and a spring is provided on the outside of the sliding rod, and one end of the sleeve rod is connected to the inner bottom groove wall of the movable groove 423, and the outer end of the sliding rod is fixed to the inner end face of the movable block 421, and the elastic telescopic rod 424 is provided with four parallel groups.

[0025] During use, when the workpiece to be processed is deformed, the angle of the workpiece is adjusted, and the hydraulic rod is started to place the workpiece between the movable block and the first clamping block for clamping. At this time, the outer side of the movable block is flush with the end face of the second clamping block, and the movable block is attracted by the magnetic block. Then, the hydraulic rod is started again so that the pressure between the first clamping block and the movable block corrects the workpiece. The corrected workpiece is then adjusted to a lateral position by the crank on the outside of the base, and then the infrared ranging sensor and the induction plate are used to make one of the two hydraulic rods retract and extend to adjust the longitudinal position of the workpiece, thereby realizing that the clamping device itself has the function of adjusting the position of the workpiece and the function of correcting the deformed workpiece. For a normal workpiece, the electric push rod is first started to retract outward so that the movable block supported by the limit block is separated from the magnetic block, and then the movable block is ejected a certain distance to the side of the first clamping block by the elastic telescopic rod. At this time, the workpiece is clamped between the movable block and the first clamping block, so that hard contact with the workpiece is avoided during the clamping process to avoid damage to the workpiece (this clamping method can also be used for workpieces that have been corrected), thereby protecting the workpiece.

[0026] The CNC milling machine capable of correcting workpieces of the present invention can effectively solve the problems of the existing CNC milling machines lacking the function of correcting the shape of the workpiece and the relatively complex adjustment mechanism for the workpiece position. It realizes the addition of a correction function for deformed workpieces on the basis of the existing CNC milling machine technology capable of correcting workpieces, and at the same time has the function of avoiding damage to the workpiece by hard contact, and can realize the linear position adjustment of the workpiece in one direction by utilizing the workbench's own structure, thereby improving the convenience of use.

Claims

1. A CNC milling machine capable of calibrating a workpiece, comprising: A CNC milling machine body (1) is characterized in that: a control box (2) is installed on the outside of the CNC milling machine body (1), and the lower end of the CNC milling machine body (1) is connected to a base (3), and the upper end of the base (3) is slidably connected to a workbench (4), the upper side of the workbench (4) is slidably connected to a first clamping block (41) and a second clamping block (42), and the outer sides of the first clamping block (41) and the second clamping block (42) are both connected to a hydraulic rod (44), and a movable block (421) is slidably connected to the inner end face of the second clamping block (42), both ends of the workbench (4) are connected to a mounting plate (45), and an infrared ranging sensor (46) is installed on the inner end face of the mounting plate (45), and a sensing plate (422) is provided on the outer end faces of the first clamping block (41) and the second clamping block (42).

2. A CNC milling machine capable of correcting a workpiece according to claim 1, characterized in that: A group of parallel first guide grooves (31) are provided at the upper end of the base (3), and second guide grooves (32) are provided between the first guide grooves (31), and a screw rod (34) is rotatably connected inside the second guide groove (32).

3. A CNC milling machine capable of correcting a workpiece according to claim 2, characterized in that: A slider (33) is slidably connected in the second guide groove (32), and a screw rod (34) passes through the slider (33) and is screwed to the slider (33), while a crank handle (35) is connected to the front end of the screw rod (34).

4. A CNC milling machine capable of correcting a workpiece according to claim 1, characterized in that: A group of parallel third guide grooves (43) are provided at the upper end of the workbench (4), and the lower ends of the first clamping block (41) and the second clamping block (42) are slidably connected to the third guide grooves (43) through the connected guide blocks.

5. A CNC milling machine capable of correcting a workpiece according to claim 1, characterized in that: A movable groove (423) is provided at the inner end of the second clamping block (42), and the movable block (421) is slidably connected to the movable groove (423), and a horizontal elastic telescopic rod (424) is provided at the bottom of the inner groove of the movable groove (423) and connected to the inner end surface of the movable block (421), and at the same time, limit blocks (427) are provided on the upper and lower inner groove walls of the movable groove (423), and the limit block (427) and the elastic telescopic rod (424) are located on the same side of the movable block (421).

6. A CNC milling machine capable of correcting a workpiece according to claim 1, characterized in that: An electric push rod (425) is installed on the outer end surface of the second clamping block (42), and a magnetic block (426) is connected to the piston rod end of the electric push rod (425), and the magnetic block (426) is located inside the movable groove (423).

7. A CNC milling machine capable of calibrating a workpiece according to claim 1, characterized in that: The mounting plate (45) is configured as an L-shaped structure, and the hydraulic rod (44) is horizontally fixed to the inner end surface of the mounting plate (45), while the infrared distance sensor (46) and the sensing plate (422) on the inner side of the mounting plate (45) are on the same horizontal line.

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