Fixing clamp with correction structure for numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool fixing clamp with a correction structure, which comprises a base and a circular truncated cone, the top of the base is provided with a through hole for accommodating the circular truncated cone, a detection mechanism abutting against the circular truncated cone is arranged in the through hole, the detection mechanism comprises a sleeve and a movable rod, one end of the movable rod is movably connected with the sleeve, and the other end of the movable rod is movably connected with the base. The other end of the movable rod abuts against the outer surface of the circular truncated cone, and scale marks are arranged on the top of the movable rod. In the using process of the circular truncated cone and the clamp mechanism, the clamp mechanism is used for clamping a workpiece, in the working process of the numerical control machine tool, the displacement of the circular truncated cone is detected through the detection mechanism, and in the detection process, if the circular truncated cone displaces, the displacement distance of the circular truncated cone is detected through the movable rod with scale marks; and then the circular truncated cone is adjusted through the correction mechanism, and the situation that part machining is affected due to too large displacement of the clamp mechanism at the top of the circular truncated cone is avoided.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool fixture technology, and more specifically, to a fixed fixture with a correction structure for CNC machine tools. Background Technology

[0002] CNC machine tool fixtures are mainly used to clamp workpieces to prevent them from moving during processing, which would affect the machining process. However, existing fixtures are prone to displacement under stress during long-term machining. If this displacement is not corrected in time, it can cause deviations in the accuracy of the machined workpiece, affecting the quality of the finished product.

[0003] During the machining process of a workpiece on a CNC machine tool, stress is applied to the fixture, causing it to shift. After being subjected to force for a long time, the fixture may also tilt. Once tilted, the positioning effect of the fixture on the workpiece decreases, which can lead to serious deviations in the accuracy of the workpiece when the CNC machine tool is machining it, or even cause the workpiece to be scrapped.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0005] In view of the problems in the related technologies, this utility model proposes a fixed fixture with a correction structure for CNC machine tools to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A fixed fixture with a correction structure for a CNC machine tool includes a base and a frustum. The top of the base has a through hole for accommodating the frustum. A detection mechanism that abuts against the frustum is provided in the through hole. The detection mechanism includes a sleeve and a movable rod. One end of the movable rod is movably connected to the sleeve, and the other end of the movable rod abuts against the outer surface of the frustum. The top of the movable rod has a scale line. The top of the frustum has a clamping mechanism. The base has a correction mechanism for adjusting the frustum.

[0008] Preferably, the sleeve is provided with a compression spring connected to the movable rod.

[0009] Preferably, the clamping mechanism includes a backing plate and a fixing plate symmetrically arranged on the top of the frustum, the fixing plate is provided with a hydraulic cylinder, and the end of the hydraulic cylinder near the backing plate is provided with a clamping plate.

[0010] Preferably, the correction mechanism includes a U-shaped seat, a horizontally arranged fixed shaft inside the U-shaped seat, a fixed block sleeved on the fixed shaft, and a support column connected to the frustum at the top of the fixed block.

[0011] Preferably, a bevel gear one is sleeved on the fixed shaft, and a bevel gear two that meshes with the bottom of the bevel gear one is provided, and a rotating shaft extending out of the U-shaped seat is provided at the bottom end of the bevel gear two.

[0012] Preferably, a bushing connected to the bottom of the U-shaped seat is movably sleeved on the rotating shaft, and the bushing is connected to the base through a connecting block.

[0013] Preferably, both the bushing and the rotating shaft are fitted with worm gears, and one side of the worm gear is provided with a worm that meshes with it. One end of the worm is connected to the output end of the servo motor in the base.

[0014] The beneficial effects of this utility model are as follows: During the use of the frustum and the clamping mechanism, the workpiece is clamped by the clamping mechanism. During the operation of the CNC machine tool, the displacement of the frustum is detected by the detection mechanism. If the frustum is displaced during the detection process, the displacement distance of the frustum is detected by the movable rod with scale markings. Then, the frustum is adjusted by the correction mechanism to avoid excessive displacement of the clamping mechanism at the top of the frustum, which would affect the processing of the parts. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a fixed fixture with a correction structure for a CNC machine tool according to an embodiment of the present utility model;

[0017] Figure 2 This is a top view of the through hole in a fixed fixture with a correction structure for a CNC machine tool according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the correction mechanism in a fixed fixture with a correction structure for a CNC machine tool according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the U-shaped seat in a fixed fixture with a correction structure for a CNC machine tool according to an embodiment of the present invention.

[0020] In the picture:

[0021] 1. Base; 2. Frustum; 3. Through hole; 4. Sleeve; 5. Movable rod; 6. Scale line; 7. Support plate; 8. Fixing plate; 9. Hydraulic cylinder; 10. Clamping plate; 11. U-shaped seat; 12. Fixed shaft; 13. Fixing block; 14. Support column; 15. Bevel gear one; 16. Bevel gear two; 17. Rotating shaft; 18. Bushing; 19. Worm gear; 20. Worm; 21. Servo motor. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0023] According to an embodiment of the present invention, a fixing fixture with a correction structure for a CNC machine tool is provided. Example

[0024] like Figure 1-4 As shown, a fixed fixture with a correction structure for a CNC machine tool according to an embodiment of the present invention includes a base 1 and a frustum 2. The top of the base 1 is provided with a through hole 3 for accommodating the frustum 2. A detection mechanism that abuts against the frustum 2 is provided in the through hole 3. The detection mechanism includes a sleeve 4 and a movable rod 5. One end of the movable rod 5 is movably connected to the sleeve 4, and the other end of the movable rod 5 abuts against the outer surface of the frustum 2. A scale line 6 is provided on the top of the movable rod 5. A fixture mechanism is provided on the top of the frustum 2. A correction mechanism for adjusting the frustum 2 is provided in the base 1. Example

[0025] like Figure 1-4 As shown, the sleeve 4 is equipped with a compression spring connected to the movable rod 5. The clamping mechanism includes a backing plate 7 and a fixing plate 8 symmetrically arranged on the top of the frustum 2. The fixing plate 8 is equipped with a hydraulic cylinder 9. The end of the hydraulic cylinder 9 near the backing plate 7 is equipped with a clamping plate 10. The correction mechanism includes a U-shaped seat 11. The U-shaped seat 11 is equipped with a horizontally arranged fixing shaft 12. The fixing shaft 12 is fitted with a fixing block 13. The top of the fixing block 13 is equipped with a support column 14 connected to the frustum 2. The fixing shaft 12 is fitted with a bevel gear 15. The bottom of the bevel gear 15 is equipped with a bevel gear 16 that meshes with it. The bottom end of the bevel gear 16 is equipped with a rotating shaft 17 extending out of the U-shaped seat 11. Example

[0026] like Figure 1-4As shown, a bushing 18 connected to the bottom of the U-shaped seat 11 is movably sleeved on the rotating shaft 17. The bushing 18 is connected to the base 1 through a connecting block. Both the bushing 18 and the rotating shaft 17 are fitted with worm gears 19. A worm 20 meshing with the worm gear 19 is provided on one side. One end of the worm 20 is connected to the output end of the servo motor 21 in the base 1.

[0027] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0028] In practical applications, the workpiece is clamped using a fixture mechanism. If the frustum 2 shifts, the outer surface of the frustum 2 will press the movable rod 5 into the sleeve 4. The movable rod 5, with its scale markings, detects the displacement distance of the frustum 2. The frustum 2 is then adjusted by a correction mechanism. Two sets of servo motors 21 drive two sets of worm gears 20. The meshing of the worm gears 20 and worm wheels 19 drives the bushing 18 and the rotating shaft 17 to rotate. When the rotating shaft 17 rotates, it drives the bevel gear 16 and bevel gear 15 to mesh and drive the fixed shaft 12 to rotate. The fixed shaft 12 drives the support column 14 to tilt through the fixed block 13. The support column 14 drives the frustum 2 to adjust its angle, while the bushing 18 drives the U-shaped seat 11 to rotate as a whole, thereby driving the support column 14 to rotate. This adjusts the frustum 2 and prevents the fixture mechanism at the top of the frustum 2 from shifting too much, which would affect the machining of the parts.

[0029] In summary, with the help of the above-mentioned technical solution of this utility model, during the use of the frustum 2 and the fixture mechanism, the fixture mechanism is used to clamp the workpiece. During the operation of the CNC machine tool, the displacement of the frustum 2 is detected by the detection mechanism. During the detection process, if the frustum 2 is displaced, the displacement distance of the frustum 2 is detected by the movable rod 5 with scale markings. Then, the frustum 2 is adjusted by the correction mechanism to avoid excessive displacement of the fixture mechanism at the top of the frustum 2, which would affect the processing of the parts.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixed jig with a correction structure for a numerical control machine tool, characterized by, The utility model provides a kind of detection mechanism for circular table, including base (1) and circular table (2), the top of the base (1) is equipped with the through hole (3) of containing the circular table (2), the through hole (3) is equipped with the detection mechanism that is in abutment with the circular table (2), the detection mechanism includes sleeve (4) and movable rod (5), one end of the movable rod (5) is movably connected with the sleeve (4), the other end of the movable rod (5) is in abutment with the outer surface of the circular table (2), the top of the movable rod (5) is equipped with scale line (6), the top of the circular table (2) is equipped with clamp mechanism, the base (1) is equipped with the correction mechanism for adjusting the circular table (2), the sleeve (4) is equipped with compression spring connected with the movable rod (5), the clamp mechanism includes abutment plate (7) and fixed plate (8) symmetrically arranged on the top of the circular table (2), the fixed plate (8) is equipped with hydraulic cylinder (9), the one end of the hydraulic cylinder (9) close to the abutment plate (7) is equipped with clamping plate (10), the correction mechanism includes U-shaped seat (11), the U-shaped seat (11) is equipped with fixed shaft (12) arranged transversely, the fixed shaft (12) is equipped with fixed block (13), the top of the fixed block (13) is equipped with support column (14) connected with the circular table (2).

2. The fixed fixture having a correction structure for a numerical control machine tool according to claim 1, characterized in that, The fixed shaft (12) is equipped with bevel gear one (15), the bottom of the bevel gear one (15) is equipped with bevel gear two (16) engaged with it, the bottom of the bevel gear two (16) is equipped with rotating shaft (17) extending to the outside of the U-shaped seat (11).

3. A fixed fixture with a correction structure for a numerical control machine tool according to claim 2, characterized in that, The rotating shaft (17) is movably equipped with shaft sleeve (18) connected with the bottom of the U-shaped seat (11), the shaft sleeve (18) is connected with the base (1) by connecting block.

4. The fixed fixture having a correction structure for a numerical control machine tool according to claim 3, characterized in that, The shaft sleeve (18) and the rotating shaft (17) are equipped with worm gear (19), one side of the worm gear (19) is equipped with worm (20) engaged with it, one end of the worm (20) is connected with the output end of servo motor (21) in the base (1).

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