Clamp tool for numerical control machine tool

Abstract

The utility model belongs to the technical field of machine manufacturing, and particularly relates to a clamp tool for a numerical control machine tool, which comprises a mounting frame, a motor is fixedly connected to the right side of the top end of the mounting frame, a driving gear is fixedly connected to the output end of the motor, and a transmission gear is meshed with the left side of the driving gear. The left side of the transmission gear is in meshed connection with a gear ring, the inner side of the gear ring is fixedly connected with a limiting frame, the outer side of the top end of the limiting frame is fixedly connected with a supporting frame, the middle side of the top end of the limiting frame is rotationally connected with a transmission disc, and the outer side of the transmission disc is rotationally connected with first transmission rods which are opposite left and right. The utility model provides a clamp tool for a numerical control machine tool, which is used for adjusting the machining angle of a workpiece, so that an operator can easily adjust the position and the angle of the workpiece to adapt to workpieces with different sizes and shapes. Due to the flexibility, the multifunctionality of the clamp is improved, the requirement for replacing the clamp is reduced, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical manufacturing, in particular to a fixture tooling for a numerically controlled machine tool. Background Art

[0002] With the continuous advancement of materials science and manufacturing technology, the materials and manufacturing processes of workpieces such as aluminum alloy wheels have been improved and optimized, which also puts higher requirements on the design of fixtures and tooling. In the processing of aluminum alloy wheels, it is necessary to carry out cutting, drilling, rough processing, surface treatment and other steps. The wheel hub needs to be fixed in all these steps. In order to meet the above processes, a new type of CNC machine tool fixture is needed.

[0003] After searching, the existing patent (Announcement No.: CN204413200U) discloses a hub fixture, including a main shaft, a sleeve, a base, and a clamping device. The bottom center of the main shaft is fixed with a transition device by bolts. The bottom center of the transition device is provided with a sleeve. The bottom of the sleeve is welded and fixed with a connecting sleeve. A positioning groove is provided in the middle of the connecting sleeve. A drill is placed in a groove at the bottom center of the connecting sleeve to form an upper fixture. The base is located below the cutter head. Three triangularly arranged clamping devices are fixed on the base. The clamping device is sequentially provided with a positioning piece, a sliding groove, and a clamping groove. The clamping groove can slide in the sliding groove, and the sliding groove can slide in the cavity formed by the positioning piece to form a lower fixture. The utility model can realize the fixed processing of hubs of different sizes, with stable processing and smooth lines, and is worthy of promotion and use.

[0004] However, in the actual use of the above solution, because the wheel hub has many processing surfaces, the wheel hub needs to be rotated at any time, which may require re-clamping the workpiece or resetting the position of the workpiece multiple times. This will increase the processing steps and time, reduce production efficiency, and may also lead to the accumulation of processing errors, reducing processing accuracy and surface quality. Especially for workpieces with complex shapes, the inability to process from multiple angles may affect the accuracy of processing.

[0005] To this end, the utility model provides a fixture tool for a numerically controlled machine tool. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the problem of frequently adjusting the angle of the wheel hub in the fixture during the wheel hub processing, the utility model proposes a fixture tooling for a CNC machine tool.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: the fixture tooling for a CNC machine tool described in the utility model comprises a mounting frame, a motor is fixedly connected to the right side of the top of the mounting frame, a driving gear is fixedly connected to the output end of the motor, a transmission gear is meshedly connected to the left side of the driving gear, a gear ring is meshedly connected to the left side of the transmission gear, a limiting frame is fixedly connected to the inner side of the gear ring, a supporting frame is fixedly connected to the outer side of the top of the limiting frame, a transmission disk is rotatably connected to the middle side of the top of the limiting frame, a first transmission rod opposite to the left and right is rotatably connected to the outer side of the transmission disk, a fixed structure is arranged on the outer side of the first transmission rod, a first slider is arranged on the bottom end of the fixed structure, a hydraulic rod opposite to the front and rear is fixedly connected to the inner side of the first slider, a second transmission rod opposite to the front and rear is rotatably connected to the outer side of the transmission disk, a second slider is rotatably connected to the outer side of the second transmission rod, the limiting frame is slidably connected to the first slider, and the limiting frame is slidably connected to the second slider;

[0008] Through the above technical solution, the motor utilizes the driving gear and the transmission gear to drive the gear ring to rotate, thereby driving the internal structure to rotate through the gear ring, thereby driving the wheel hub to rotate, so as to adjust the angle of the wheel hub and facilitate subsequent processing.

[0009] Further, the fixing structure includes a clamping arm, the top of the first slider is fixedly connected to a support seat, a slide groove is provided inside the support seat, a third slider is slidably connected inside the slide groove, the top of the third slider is fixedly connected to a clamping arm, a threaded sleeve is fixedly connected to an outer wall of the support seat, a threaded rod is threadedly connected inside the threaded sleeve, and a top column is fixedly connected inside the threaded rod;

[0010] Through the above technical solution, the movement of the third sliding block is controlled by the handle, so that the fixing structure can adjust the soft and hard clamping according to the needs.

[0011] Furthermore, a handle is fixedly connected to the outer side of the threaded rod, a spring is provided at the inner outer end of the threaded rod, one inner end of the spring is fixedly connected to the third slider, and one outer end of the spring is fixedly connected to the inner wall of the slide groove;

[0012] Through the above technical solution, the position of the threaded rod can be adjusted by rotating the handle, thereby controlling the position of the clamping arm.

[0013] Furthermore, the top of the second slider is fixedly connected to a fixing structure having the same structure as the top of the first slider;

[0014] Through the above technical solution, by arranging the same fixing structure at the top of the second slider and the top of the first slider, the accessories of the device are made the same, which is convenient for use during the subsequent maintenance process.

[0015] Furthermore, a rubber layer is provided at a position where the inner side of the clamping arm contacts the workpiece;

[0016] Through the above technical solution, the rubber layer can protect the processed workpiece to avoid damage to the workpiece surface during hard clamping.

[0017] Furthermore, the sum of the remaining length outside the connection position between the clamping arm and the third slider and the length of the third slider itself is equal to the length of the slide slot itself;

[0018] Through the above technical solution, by setting the length of the slide groove to be the same as the length of the clamping arm and the third slider, the clamping arm can be prevented from leaking out of the slide groove during movement, causing chips to fall into it and affect the normal use of the device.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The fixture for a CNC machine tool described in the utility model drives the gear ring to rotate through the motor using the driving gear and the transmission gear, and drives the internal structure and the workpiece to rotate through the gear ring, thereby adjusting the processing angle of the workpiece, so that the operator can easily adjust the position and angle of the workpiece to adapt to workpieces of different sizes and shapes. This flexibility improves the versatility of the fixture, reduces the need to replace the fixture, and thus improves production efficiency.

[0021] 2. The clamping tooling for CNC machine tools described in the utility model drives the threaded rod to move horizontally by rotating the handle, thereby controlling whether the third slider can move and controlling the moving stroke of the third slider, thereby adjusting the soft or hard clamping of the workpiece according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2 It is a cross-sectional view in the utility model;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the limiting frame in the utility model;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the first sliding block in the utility model;

[0027] Figure 5 It is a schematic diagram of the cross-sectional structure of the support seat in the utility model;

[0028] In the figure: 1. mounting frame; 11. motor; 12. driving gear; 13. transmission gear; 14. gear ring; 2. limiting frame; 21. supporting frame; 22. transmission plate; 23. first transmission rod; 24. second transmission rod; 25. first slider; 26. hydraulic rod; 27. second slider; 3. supporting seat; 31. clamping arm; 32. third slider; 33. slide groove; 34. threaded sleeve; 35. threaded rod; 36. handle; 37. top column; 38. spring. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] Embodiment 1:

[0031] like Figures 1 to 5 As shown, a fixture for a CNC machine tool described in the utility model comprises a mounting frame 1, a motor 11 is fixedly connected to the right side of the top of the mounting frame 1, the motor 11 is fixed by the mounting frame 1, a driving gear 12 is fixedly connected to the output end of the motor 11, the driving gear 12 is driven to rotate by the motor 11, a transmission gear 13 is meshedly connected to the left side of the driving gear 12, a gear ring 14 is meshedly connected to the left side of the transmission gear 13, the gear ring 14 is driven to rotate by the transmission gear 13 through the driving gear 12, a limiting frame 2 is fixedly connected to the inner side of the gear ring 14, the limiting frame 2 is fixed by the gear ring 14, a support frame 21 is fixedly connected to the outer side of the top of the limiting frame 2, the support frame 21 is fixed by the limiting frame 2, when supporting the workpiece, the operation of the mechanism at the bottom of the support frame 21 is affected, a transmission disk 22 is rotatably connected to the middle side of the top of the limiting frame 2, and the limiting frame 2 is fixed by the limiting frame 2. 2 is used to limit the transmission disc 22, and the outer side of the transmission disc 22 is rotatably connected with the first transmission rod 23 opposite to the left and right. A fixed structure is arranged on the outer side of the first transmission rod 23, and the fixed structure and the transmission disc 22 are connected through the first transmission rod 23. A first slider 25 is arranged at the bottom end of the fixed structure to support the fixed structure through the first slider 25. The inner side of the first slider 25 is fixedly connected with the front and rear opposite hydraulic rods 26, and the first sliders 25 on both sides are connected through the hydraulic rod 26. The outer side of the transmission disc 22 is rotatably connected with the second transmission rod 24 opposite to the front and rear, and the outer side of the second transmission rod 24 is rotatably connected with the second slider 27, and the transmission disc 22 and the second slider 27 are connected through the second transmission rod 24. The limiting frame 2 is slidably connected to the first slider 25, and the limiting frame 2 is slidably connected to the second slider 27, and the first slider 25 and the second slider 27 are limited by the limiting frame 2 at the same time.

[0032] The fixing structure includes a clamping arm 31, a support seat 3 is fixedly connected to the top of the first slider 25, and the support seat 3 is fixed by the first slider 25, a sliding groove 33 is opened on the inner side of the support seat 3, and a third slider 32 is slidably connected to the inner side of the sliding groove 33, and the third slider 32 is limited by the sliding groove 33 opened on the inner side of the support seat 3, a clamping arm 31 is fixedly connected to the top of the third slider 32, and the clamping arm 31 is fixed by the third slider 32, a threaded sleeve 34 is fixedly connected to the outer wall of the support seat 3, and the threaded sleeve 34 is fixed by the support seat 3, a threaded rod 35 is threadedly connected to the inner side of the threaded sleeve 34, and the threaded rod 35 is limited by the threaded sleeve 34, a top column 37 is fixedly connected to the inner side of the threaded rod 35, and the top column 37 is fixed by the threaded rod 35.

[0033] A handle 36 is fixedly connected to the outside of the threaded rod 35, and the handle 36 is fixed by the threaded rod 35. A spring 38 is provided at the inner outer end of the threaded rod 35. One inner end of the spring 38 is fixedly connected to the third slider 32, and one outer end of the spring 38 is fixedly connected to the inner wall of the slide groove 33. By rotating the handle 36, the threaded rod 35 and the top column 37 are driven to move outward at the same time, and the fixation of the third slider 32 is cancelled, so that the third slider 32 can move outward. The spring 38 pushes the third slider 32 inward with the slide groove 33 as the stress point, thereby realizing the adjustment of soft and hard clamping.

[0034] The top of the second slider 27 is fixedly connected to a fixing structure with the same structure as the top of the first slider 25 , and the fixing structure is supported by the first slider 25 and the second slider 27 at the same time.

[0035] A rubber layer is provided at the position where the inner side of the clamping arm 31 contacts the workpiece, and the surface of the workpiece is protected by the rubber layer.

[0036] The sum of the remaining length outside the connection position between the clamping arm 31 and the third slider 32 and the length of the third slider 32 itself is equal to the length of the slide groove 33 itself. By setting the length of the slide groove 33 and the total length of the clamping arm 31 and the third slider 32 to be equal, the slide groove 33 can be closed while the third slider 32 and the clamping arm 31 move left and right, thereby preventing chips from falling into the slide groove 33 and affecting the normal operation of the device.

[0037] Working principle: When the fixture for CNC machine tools is used, the required clamping type is first adjusted according to the needs. When the handle 36 is not turned, the third slider 32 is fixed by the threaded rod 35 and the top column 37. The third slider 32 cannot move in the slide groove 33, which is a hard clamp. When flexible clamping is required, it is only necessary to turn the handle 36, and the threaded rod 35 and the top column 37 are driven by the handle 36 to rotate and move outward, thereby canceling the fixation of the third slider 32. At the same time, the spring 38 uses the inner wall of the slide groove 33 as the stress point to push the third slider 32 inward to achieve flexible clamping. Then, the workpiece is placed on the top of the support frame 21, and then through The hydraulic rod 26 itself is extended and retracted, driving the first sliders 25 on both sides to move inward at the same time, and at the same time, the first slider 25 drives the fixed structure and the first transmission rod 23 to move, and at the same time, the first transmission rod 23 drives the transmission plate 22 to rotate, and the second transmission rods 24 on both sides drive the second slider 27 and the fixed structure at the top of the second slider 27 to move synchronously through the transmission plate 22 to complete the fixation of the workpiece, and then the motor 11 drives the driving gear 12 and the transmission gear 13 to rotate the gear ring 14, so that the limit frame 2 and other internal structures and the workpiece are driven to rotate through the gear ring 14, so as to adjust the horizontal angle of the workpiece.

[0038] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fixture for a CNC machine tool, characterized in that: The invention comprises a mounting frame (1), wherein a motor (11) is fixedly connected to the right side of the top of the mounting frame (1), a driving gear (12) is fixedly connected to the output end of the motor (11), a transmission gear (13) is meshedly connected to the left side of the driving gear (12), a gear ring (14) is meshedly connected to the left side of the transmission gear (13), a limiting frame (2) is fixedly connected to the inner side of the gear ring (14), a support frame (21) is fixedly connected to the outer side of the top of the limiting frame (2), a transmission disk (22) is rotatably connected to the middle side of the top of the limiting frame (2), and the outer side of the transmission disk (22) is rotatably connected to the transmission disk (22). The first transmission rod (23) is movably connected to the first transmission rod (23) and is opposite to each other on the left and right. A fixed structure is arranged on the outer side of the first transmission rod (23). A first slider (25) is arranged on the bottom end of the fixed structure. A hydraulic rod (26) is fixedly connected to the inner side of the first slider (25) and is opposite to each other on the front and back sides. A second transmission rod (24) is rotatably connected to the outer side of the transmission plate (22). A second slider (27) is rotatably connected to the outer side of the second transmission rod (24). The limiting frame (2) is slidably connected to the first slider (25). The limiting frame (2) is slidably connected to the second slider (27).

2. A fixture for a CNC machine tool according to claim 1, characterized in that: The fixing structure comprises a clamping arm (31), the top end of the first sliding block (25) is fixedly connected to a support seat (3), a sliding groove (33) is provided on the inner side of the support seat (3), a third sliding block (32) is slidably connected to the inner side of the sliding groove (33), the top end of the third sliding block (32) is fixedly connected to the clamping arm (31), the outer wall of the support seat (3) is fixedly connected to a threaded sleeve (34), the inner side of the threaded sleeve (34) is threadedly connected to a threaded rod (35), and the inner side of the threaded rod (35) is fixedly connected to a top column (37).

3. A fixture for a CNC machine tool according to claim 2, characterized in that: A handle (36) is fixedly connected to the outer side of the threaded rod (35), a spring (38) is provided at the inner outer end of the threaded rod (35), an inner end of the spring (38) is fixedly connected to the third sliding block (32), and an outer end of the spring (38) is fixedly connected to the inner wall of the sliding groove (33).

4. A fixture for a CNC machine tool according to claim 3, characterized in that: The top end of the second sliding block (27) is fixedly connected to a fixing structure having the same structure as the top end of the first sliding block (25).

5. A fixture for a CNC machine tool according to claim 4, characterized in that: A rubber layer is provided at the inner side of the clamping arm (31) at a position in contact with the workpiece.

6. A fixture for a CNC machine tool according to claim 5, characterized in that: The sum of the remaining length outside the connection position between the clamping arm (31) and the third slider (32) and the length of the third slider (32) itself is equal to the length of the slide groove (33) itself.

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