Efficient positioning device for numerical control machine tool

Abstract

The utility model discloses an efficient positioning device for a numerical control machine tool, belongs to the technical field of positioning of the numerical control machine tool, and solves the problems that convex shaft blocks of an existing device can only move synchronously, workpieces with irregular outlines cannot be clamped and fixed conveniently, a rotary driving disc can drive the workpieces to move, and the placement positions of the workpieces cannot be determined conveniently. Comprising a numerical control milling machine, a driving assembly comprises a containing plate, a driving gear and a driven gear meshed with the driving gear are arranged on the bottom face of a groove, an adjusting assembly comprises a sliding block, the sliding block is slidably arranged in a sliding groove in a sleeved mode, and a clamping plate is arranged in a U-shaped plate. The clamping plate can be pulled to make contact with the side face of the workpiece, then the workpiece is clamped and fixed, the situation that the workpiece moves is avoided, the second motor drives the clamping plate to move along the inner wall of the U-shaped plate till one end of the clamping plate makes contact with the surface of the workpiece, and the purpose of clamping and fixing the workpieces with different contours is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tool positioning, in particular to a high-efficiency positioning device for numerical control machine tools. Background Art

[0002] A milling machine is a machine tool that uses a milling cutter to process the surface of a workpiece. Before processing the workpiece, a positioning device is required to limit and fix the workpiece in order to improve the processing accuracy.

[0003] After searching, the application with patent number CN202320104765.4 discloses a high-efficiency positioning device for a CNC machine tool, including a CNC milling machine, an arched seat is provided at the inner end of the CNC milling machine, a convex slide groove is provided around the arched seat, a convex shaft block is slidably connected in the convex slide groove, a rotating drive disk is sleeved on the outer surface of the convex shaft block, a curved toggle groove is provided on the outer surface of the rotating drive disk, and the curved toggle groove is sleeved on the outer surface of the convex shaft block, and the rotating drive disk is driven by a driving device;

[0004] Although the high-efficiency positioning device for CNC machine tools can simultaneously move four cam blocks for sliding clamping by rotating the rotating drive disk, the cam blocks of the high-efficiency positioning device for CNC machine tools can only move synchronously, which is not convenient for clamping and fixing workpieces with irregular contours, and the rotating drive disk will drive the workpiece to move, which is not convenient for determining the placement position of the workpiece.

[0005] Therefore, we proposed an efficient positioning device for CNC machine tools. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a high-efficiency positioning device for CNC machine tools, which solves the problems that the cam blocks of the prior devices can only move synchronously, making it inconvenient to clamp and fix workpieces with irregular contours, and that the rotating drive disk will drive the workpiece to move, making it inconvenient to determine the placement position of the workpiece.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: an efficient positioning device for a CNC machine tool, comprising a CNC milling machine, wherein a driving component and an adjusting component driven by the driving component are arranged inside the CNC milling machine;

[0008] The driving assembly comprises a placement plate, a groove is provided inside the placement plate, a slide groove connected to the groove is provided on the top surface of the driving assembly, a driving gear and a driven gear meshing with the driving gear are provided on the bottom surface of the groove, and a steel cable and a return spring are provided on the adjustment assembly;

[0009] The adjustment component includes a slider, one side of which is fixedly mounted with one end of a steel cable, the slider is slidably mounted inside a slide groove, a U-shaped plate is fixedly mounted on the top surface of the slider, and a clamping plate is arranged inside the U-shaped plate.

[0010] Preferably, one end of a return spring is fixedly installed on the other side of the slider, and the other end of the return spring is fixedly installed on the side wall of the slide groove. A second motor is fixedly installed on the side wall of the U-shaped plate, and an output end of the second motor passes through the side wall of the U-shaped plate and is fixedly installed with an adjusting gear, wherein the slider can be pulled back to its original position by the return spring, and the adjusting gear can be driven to rotate by the second motor.

[0011] Preferably, the clamping plate is slidably mounted inside the U-shaped plate, a gear groove is provided on the bottom surface of the clamping plate, the adjusting gear is meshed with the gear groove, and limiting plates are fixedly installed on both sides of the top surface of the gear groove, wherein when the adjusting gear rotates, the clamping plate can be driven to translate along the inner wall of the gear groove, and the limiting plate can prevent the clamping plate from detaching from the inside of the U-shaped plate.

[0012] Preferably, the driving assembly also includes a first motor fixedly mounted on the bottom surface of the CNC milling machine, the output end of the first motor passes through the bottom surface of the CNC milling machine and the placement plate and is fixedly mounted on the bottom surface of the driving gear, the driven gear is rotatably mounted on the bottom surface of the slide groove through a bearing ring, a take-up roller is fixedly mounted on the top surface of the driven gear, and the other end of the steel cable is fixedly mounted on the take-up roller, wherein the first motor is used to drive the driving gear to rotate, and then the driving gear drives the driven gear and the take-up roller to rotate together, and then the steel cable is wound around the surface of the take-up roller, and then the adjustment assembly is driven to move.

[0013] Preferably, the inner ring of the reset spring is provided with a telescopic rod, and both ends of the telescopic rod are respectively fixedly mounted on the side walls of the slider and the slide groove, wherein the telescopic rod can prevent the reset spring from bending during extension and contraction, thereby preventing the slider from tilting during movement.

[0014] The utility model provides a high-efficiency positioning device for a CNC machine tool, which has the following beneficial effects:

[0015] The high-efficiency positioning device for CNC machine tools drives the active gear to rotate through the first motor, and then drives the driven gear and the wire-taking roller above it to rotate synchronously, and then the steel cable is wound on the wire-taking roller, and the slider can be pulled to the side close to the workpiece through the steel cable until the clamping plate contacts the side of the workpiece, and then clamps and fixes it. During the movement of the slider, the position of the placement plate will not change, and the movement of the workpiece can be avoided, which is convenient for determining the placement position of the workpiece. If the contour of the workpiece is irregular, the adjusting gear can be driven to rotate through the second motor, and then the clamping plate is driven to move along the inner wall of the U-shaped plate through the structure in which the adjusting gear meshes with the gear groove, until one end of the clamping plate contacts the surface of the workpiece, and then the workpiece with an irregular contour can be clamped and fixed, thereby achieving the purpose of clamping and fixing workpieces with different contours, and solving the problem that the cam block of the existing device can only be displaced synchronously, which is not convenient for clamping and fixing workpieces with irregular contours, and the rotating drive disk will drive the workpiece to move, which is not convenient for determining the placement position of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the drive assembly of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the regulating component of the utility model.

[0020] In the figure: 1. CNC milling machine; 2. driving assembly; 21. placement plate; 22. groove; 23. slide; 24. first motor; 25. driving gear; 26. driven gear; 27. take-up roller; 28. steel cable; 29. ​​reset spring; 210. telescopic rod; 3. adjustment assembly; 31. slider; 32. U-shaped plate; 33. second motor; 34. adjustment gear; 35. clamping plate; 36. gear groove; 37. limit plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] like Figure 1-4 As shown: it includes a CNC milling machine 1, the CNC milling machine 1 is provided with a driving component 2 and an adjusting component 3 driven by the driving component 2, the driving component 2 includes a placing plate 21, a groove 22 is provided inside the placing plate 21, a slide groove 23 connected to the groove 22 is provided on the top surface of the driving component 2, a driving gear 25 and a driven gear 26 meshing with the driving gear 25 are provided on the bottom surface of the groove 22, a steel cable 28 and a return spring 29 are provided on the adjusting component 3, and the adjusting component 3 includes a slider 31, and a steel cable 2 is fixedly installed on one side of the slider 31 8, a slider 31 is slidably mounted inside the slide groove 23, a U-shaped plate 32 is fixedly mounted on the top surface of the slider 31, and a 35 is arranged inside the U-shaped plate 32, one end of a return spring 29 is fixedly mounted on the other side of the slider 31, and the other end of the return spring 29 is fixedly mounted on the side wall of the slide groove 23, a second motor 33 is fixedly mounted on the side wall of the U-shaped plate 32, and an adjusting gear 34 is fixedly mounted on the output end of the second motor 33 through the side wall of the U-shaped plate 32, a clamping plate 35 is slidably mounted inside the U-shaped plate 32, and the clamping plate A gear groove 36 is provided on the bottom surface of 35, and the adjusting gear 34 meshes with the gear groove 36. Limit plates 37 are fixedly installed on both sides of the top surface of the gear groove 36. The driving gear 25 is driven to rotate by the first motor 24, and then the driven gear 26 and the wire-taking roller 27 above it are driven to rotate synchronously, and then the steel cable 28 is wound around the wire-taking roller 27, and the slider 31 can be pulled to the side close to the workpiece by the steel cable 28 until the clamping plate 35 contacts the side of the workpiece, and then clamps and fixes it. During the movement of the slider 31, The position of the placement plate 21 will not change, and the movement of the workpiece can be avoided, which facilitates the determination of the placement position of the workpiece. If the contour of the workpiece is irregular, the second motor 33 can be used to drive the adjusting gear 34 to rotate, and then the structure of the meshing of the adjusting gear 34 and the gear groove 36 drives the clamping plate 35 to move along the inner wall of the U-shaped plate 32 until one end of the clamping plate 35 contacts the surface of the workpiece, and then the workpiece with an irregular contour can be clamped and fixed, thereby achieving the purpose of clamping and fixing workpieces with different contours.

[0024] Embodiment 2:

[0025] like Figure 2-3As shown: the driving assembly 2 also includes a first motor 24 fixedly mounted on the bottom surface of the CNC milling machine 1, the output end of the first motor 24 passes through the CNC milling machine 1 and the bottom surface of the placement plate 21 and is fixedly mounted on the bottom surface of the driving gear 25, the driven gear 26 is rotatably sleeved on the bottom surface of the slide 23 through the bearing ring, the top surface of the driven gear 26 is fixedly mounted with a take-up roller 27, the other end of the steel cable 28 is fixedly mounted on the take-up roller 27, the inner ring of the reset spring 29 is provided with a telescopic rod 210, and the two ends of the telescopic rod 210 are respectively fixedly mounted on the slider 31 and the side wall of the slide 23, the first motor 24 is used to drive the driving gear 25 to rotate, and then the driving gear 25 drives the driven gear 26 and the take-up roller 27 to rotate together, and then the steel cable 28 is wound around the surface of the take-up roller 27, and then the adjustment assembly 3 is driven to move, and the telescopic rod 210 can prevent the reset spring 29 from bending during extension and contraction, and then prevent the slider 31 from tilting during movement.

[0026] The working principle and use process of the utility model: the high-efficiency positioning device for CNC machine tools, when in use, the workpiece is placed on the top surface of the placement plate 21, and then the first motor 24 is started to drive the driving gear 25 to rotate, and then the driven gear 26 and the take-up roller 27 above it are driven to rotate synchronously, and then the steel cable 28 is wound around the take-up roller 27, and the slider 31 can be pulled to the side close to the workpiece through the steel cable 28 until the clamping plate 35 contacts the side of the workpiece, and then it is clamped and fixed. If the contour of the workpiece is irregular, the second motor 33 can be started to drive the adjusting gear 34 to rotate, and then the clamping plate 35 is driven to move along the inner wall of the U-shaped plate 32 through the structure in which the adjusting gear 34 is meshed with the gear groove 36, until one end of the clamping plate 35 contacts the surface of the workpiece, and then the workpiece with an irregular contour can be clamped and fixed. When the workpiece is processed, the first motor 24 is started to flip, the steel cable 28 can be released, and the slider 31 can be pulled back to its original position by the pulling force of the reset spring 29 on the slider 31.

[0027] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-efficiency positioning device for a CNC machine tool, characterized in that: The invention comprises a numerically controlled milling machine (1), wherein a driving component (2) and an adjusting component (3) driven by the driving component (2) are arranged inside the numerically controlled milling machine (1); The driving assembly (2) comprises a placement plate (21), a groove (22) is provided inside the placement plate (21), a slide groove (23) connected to the groove (22) is provided on the top surface of the driving assembly (2), a driving gear (25) and a driven gear (26) meshing with the driving gear (25) are provided on the bottom surface of the groove (22), and a steel cable (28) and a return spring (29) are provided on the adjustment assembly (3); the adjustment assembly (3) comprises a slider (31), one end of the steel cable (28) is fixedly mounted on one side of the slider (31), the slider (31) is slidably mounted inside the slide groove (23), a U-shaped plate (32) is fixedly mounted on the top surface of the slider (31), and a clamping plate (35) is provided inside the U-shaped plate (32).

2. The high-efficiency positioning device for a CNC machine tool according to claim 1, characterized in that: One end of a return spring (29) is fixedly mounted on the other side of the slider (31), and the other end of the return spring (29) is fixedly mounted on the side wall of the slide groove (23). A second motor (33) is fixedly mounted on the side wall of the U-shaped plate (32), and an adjusting gear (34) is fixedly mounted on the output end of the second motor (33) passing through the side wall of the U-shaped plate (32).

3. The high-efficiency positioning device for a CNC machine tool according to claim 2, characterized in that: The clamping plate (35) is slidably mounted inside the U-shaped plate (32). A gear groove (36) is provided on the bottom surface of the clamping plate (35). The adjusting gear (34) meshes with the gear groove (36). Limiting plates (37) are fixedly mounted on both sides of the top surface of the gear groove (36).

4. The high-efficiency positioning device for a CNC machine tool according to claim 1, characterized in that: The driving assembly (2) further comprises a first motor (24) fixedly mounted on the bottom surface of the CNC milling machine (1); an output end of the first motor (24) penetrates the bottom surface of the CNC milling machine (1) and the placement plate (21) and is fixedly mounted on the bottom surface of a driving gear (25); the driven gear (26) is rotatably mounted on the bottom surface of the slide groove (23) via a bearing ring; a take-up roller (27) is fixedly mounted on the top surface of the driven gear (26); and the other end of the steel cable (28) is fixedly mounted on the take-up roller (27).

5. The high-efficiency positioning device for a CNC machine tool according to claim 1, characterized in that: The inner ring of the return spring (29) is provided with a telescopic rod (210), and the two ends of the telescopic rod (210) are respectively fixedly mounted on the side wall of the sliding block (31) and the sliding groove (23).

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