Machining clamp for numerical control grinding machine

Abstract

The utility model relates to the technical field of machining clamps, and discloses a machining clamp for a numerical control grinding machine, which comprises a metal mounting seat, a carbon steel supporting block is mounted at the top of the metal mounting seat, and a clamping device is fixed at the top of the metal mounting seat; the device is provided with the clamping device, workpieces of different sizes can be conveniently clamped and fixed, the cast iron rack moves at the same time when the multi-size clamping positioning sleeve moves, a user can visually observe the position of the cast iron rack to determine the clamping condition of the workpieces, and machining of the numerical control grinding machine is facilitated; the device is provided with the replacement device, the installation connecting sleeve and the multi-size clamping and positioning sleeve can be conveniently taken down from the outer side of the fixed carbon steel rod, replacement of the multi-size clamping and positioning sleeve can be conveniently completed, and the multi-size clamping and positioning sleeves of different sizes and shapes can meet the clamping requirements of workpieces of different shapes after being replaced; and the use is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of processing fixtures, in particular to a processing fixture for a numerical control grinding machine. Background Technique

[0002] A numerical control grinding machine is a machine tool that grinds the surface of a workpiece by using a grinding tool through numerical control technology. Most grinding machines use a high-speed rotating grinding wheel for grinding. A fixture is used to fix the processing object during the mechanical manufacturing process and is one of the important components of a numerical control grinding machine.

[0003] However, during the use of the existing processing fixtures, when placing and clamping workpieces of different shapes, it is necessary to replace the fixtures corresponding to the shapes or sizes, and the use is relatively cumbersome. Therefore, those skilled in the art provide a processing fixture for a numerical control grinding machine to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide a processing fixture for a numerical control grinding machine to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A processing fixture for a numerical control grinding machine includes a metal mounting base. A carbon steel support block is installed on the top of the metal mounting base. A clamping device is fixed on the top of the metal mounting base. A fixed carbon steel rod is installed on the top of the clamping device. A replacement device is installed on the outside of the fixed carbon steel rod. Multiple-size clamping positioning sleeves are fixed on the outside of the replacement device.

[0007] The clamping device includes an electric push rod. One end of the output shaft of the electric push rod is fixed with a carbon steel rack. A stable mounting base is fixed on the top of the metal mounting base. The top of the stable mounting base is connected with a metal shaft through a bearing. A first gear is fixed on the outside of the metal shaft. A second gear is fixed on the outside of the metal shaft. The outside of the first gear is engaged with a cast iron rack. A guide groove is opened inside the stable mounting base.

[0008] The replacement device includes an installation connection sleeve. One side of the installation connection sleeve is fixed with a carbon steel threaded sleeve. The carbon steel threaded sleeve is threadedly connected with a carbon steel nut passing through the other side of it. A fixed shell is fixed on the top of the installation connection sleeve.

[0009] As a further scheme of the utility model: A support spring is fixed on the inner top wall of the fixed shell. The bottom of the support spring is connected with a limiting plate. A reinforcing block is installed at the bottom of the limiting plate. One end of the limiting plate is fixed with a roller metal sleeve. A guide wheel is rotatably connected inside the roller metal sleeve through a rotating shaft.

[0010] As a further solution of the present utility model: The installation connection sleeve is movably sleeved outside the fixed carbon steel rod, and the installation connection sleeve and the fixed carbon steel rod are fixedly connected by a carbon steel nut.

[0011] As a further solution of the present utility model: A threaded hole is provided inside the fixed carbon steel rod, and anti-slip threads are provided on the outside of the carbon steel nut.

[0012] As a further solution of the present utility model: A slider is provided at the bottom of the carbon steel rack, and the slider at the bottom of the carbon steel rack is slidably connected to the stable mounting seat.

[0013] As a further solution of the present utility model: A guide block is provided at the bottom of the cast iron rack, and the guide block at the bottom of the cast iron rack is slidably connected to the stable mounting seat.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. The device is provided with a clamping device. When clamping the workpiece during the machining of the numerical control grinding machine, the corresponding workpiece is placed between the corresponding surfaces of the two multi-size clamping and positioning sleeves, and the clamping and fixing of workpieces of different sizes can be conveniently completed. When the multi-size clamping and positioning sleeve moves, the cast iron rack also moves at the same time. The user can visually observe the position of the cast iron rack to determine the clamping situation of the workpiece, which is beneficial to the machining of the numerical control grinding machine;

[0016] 2. The device is provided with a replacement device, which can conveniently remove the installation connection sleeve and the multi-size clamping and positioning sleeve from the outside of the fixed carbon steel rod, and can conveniently complete the replacement of the multi-size clamping and positioning sleeve. After replacing the multi-size clamping and positioning sleeves of different sizes and shapes, the clamping requirements of workpieces of different shapes can be adapted, and it is relatively simple to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a perspective view of a machining fixture for a numerical control grinding machine;

[0018] Figure 2 is a structural schematic diagram of the clamping device in a machining fixture for a numerical control grinding machine;

[0019] Figure 3 is a structural schematic diagram of the replacement device in a machining fixture for a numerical control grinding machine;

[0020] Figure 4 is a structural schematic diagram of the interior of the fixed housing in a machining fixture for a numerical control grinding machine.

[0021] In the figure: 1. Metal mounting base; 2. Carbon steel support block; 3. Clamping device; 31. Electric push rod; 32. Carbon steel rack; 33. Stable mounting base; 34. Metal shaft; 35. First gear; 36. Second gear; 37. Cast iron rack; 38. Guide groove; 4. Fixed carbon steel rod; 5. Replacement device; 51. Mounting connection sleeve; 52. Carbon steel threaded sleeve; 53. Carbon steel nut; 54. Fixed housing; 55. Guide wheel; 56. Support spring; 57. Limit plate; 58. Reinforcement block; 59. Roller metal sleeve; 6. Multi-size clamping positioning sleeve. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 , in the embodiment of the present invention, a processing fixture for a numerical control grinding machine includes a metal mounting base 1, a carbon steel support block 2 is installed on the top of the metal mounting base 1, a clamping device 3 is fixed on the top of the metal mounting base 1, a fixed carbon steel rod 4 is installed on the top of the clamping device 3, a replacement device 5 is installed on the outer side of the fixed carbon steel rod 4, and a multi-size clamping positioning sleeve 6 is fixed on the outer side of the replacement device 5;

[0024] The clamping device 3 includes an electric push rod 31. One end of the output shaft of the electric push rod 31 is fixed with a carbon steel rack 32. The top of the metal mounting base 1 is fixed with a stable mounting base 33. The top of the stable mounting base 33 is connected with a metal shaft 34 through a bearing. A first gear 35 is fixed on the outer side of the metal shaft 34. A second gear 36 is fixed on the outer side of the metal shaft 34. The outer side of the first gear 35 is meshed with a cast iron rack 37. A guide groove 38 is formed inside the stable mounting base 33. A slider is arranged at the bottom of the carbon steel rack 32. The slider at the bottom of the carbon steel rack 32 is slidably connected with the stable mounting base 33. A guide block is arranged at the bottom of the cast iron rack 37. The guide block at the bottom of the cast iron rack 37 is slidably connected with the stable mounting base 33. When clamping a workpiece during the machining of a CNC grinding machine, place the corresponding workpiece between the corresponding surfaces of the two multi-size clamping and positioning sleeves 6, and then start the electric push rod 31 to make the output shaft of the electric push rod 31 drive the carbon steel rack 32 to move. After the carbon steel rack 32 moves, the second gear 36 meshed with it rotates. The second gear 36 drives the first gear 35 to rotate through the metal shaft 34. The first gear 35 drives the cast iron rack 37 meshed with it to move. The cast iron rack 37 can drive the fixed carbon steel rod 4 fixedly connected with it to drive the multi-size clamping and positioning sleeve 6 to move, so that the corresponding surfaces of the multi-size clamping and positioning sleeve 6 are attached to the outer side of the workpiece, and the clamping and fixing of workpieces of different sizes are conveniently completed.

[0025] As an implementation manner of the present invention, the replacement device 5 includes an installation connection sleeve 51. One side of the installation connection sleeve 51 is fixed with a carbon steel threaded sleeve 52. One side of the carbon steel threaded sleeve 52 is threadedly connected with a carbon steel nut 53 passing through the other side of it. The installation connection sleeve 51 is movably sleeved on the outer side of the fixed carbon steel rod 4. The installation connection sleeve 51 and the fixed carbon steel rod 4 are fixedly connected through the carbon steel nut 53. The top of the installation connection sleeve 51 is fixed with a fixed shell 54. The inner top wall of the fixed shell 54 is fixed with a support spring 56. The bottom of the support spring 56 is connected with a limit plate 57. A reinforcement block 58 is installed at the bottom of the limit plate 57. One end of the limit plate 57 is fixed with a roller metal sleeve 59. A guide wheel 55 is rotatably connected inside the roller metal sleeve 59 through a rotating shaft. A threaded hole is formed inside the fixed carbon steel rod 4. Anti-slip threads are arranged on the outer side of the carbon steel nut 53.

[0026] The working principle of the present utility model is as follows: The device is provided with a clamping device 3. When clamping a workpiece during the machining of a CNC grinding machine, the corresponding workpiece is placed between the corresponding surfaces of two multi-size clamping and positioning sleeves 6. Then, the electric push rod 31 is started, and the output shaft of the electric push rod 31 drives the carbon steel rack 32 to move. After the carbon steel rack 32 moves, the second gear 36 meshing with it rotates. The second gear 36 drives the first gear 35 to rotate through the metal shaft 34. The first gear 35 drives the cast iron rack 37 meshing with it to move. The cast iron rack 37 can drive the fixed carbon steel rod 4 fixedly connected to it to drive the multi-size clamping and positioning sleeve 6 to move, so that the corresponding surfaces of the multi-size clamping and positioning sleeve 6 are attached to the outside of the workpiece, conveniently completing the clamping and fixing of workpieces of different sizes. Moreover, when the multi-size clamping and positioning sleeve 6 moves, the cast iron rack 37 also moves simultaneously. The user can visually observe the position of the cast iron rack 37 to determine the clamping situation of the workpiece, which is beneficial to the machining of the CNC grinding machine. The device is provided with a replacement device 5. The multi-size clamping and positioning sleeve 6 has multiple models and sizes, so as to adapt to the clamping requirements of workpieces of different sizes. When clamping and fixing workpieces of different shapes, first, the multi-size clamping and positioning sleeve 6 needs to be replaced. Just rotate the carbon steel nut 53 counterclockwise. After releasing the threaded connection between the carbon steel nut 53 and the carbon steel threaded sleeve 52, the installation connection sleeve 51 can be toggled to move outside the fixed carbon steel rod 4, so as to remove the installation connection sleeve 51 and the multi-size clamping and positioning sleeve 6 from the outside of the fixed carbon steel rod 4. Then, take the multi-size clamping and positioning sleeve 6 suitable for clamping the workpiece size, and then movably sleeved the installation connection sleeve 51 outside the corresponding multi-size clamping and positioning sleeve 6 on the outside of the fixed carbon steel rod 4, and use the carbon steel nut 53 to complete the threaded connection and fixation. Moreover, the support spring 56 in the fixed housing 54 can push the limit plate 57, so that one end of the reinforcement block 58 is attached to the outside of the fixed carbon steel rod 4, playing a role in reinforcement, thus conveniently completing the replacement of the multi-size clamping and positioning sleeve 6. After replacing the multi-size clamping and positioning sleeves 6 of different sizes and shapes, they can adapt to the clamping requirements of workpieces of different shapes, and are relatively simple to use.

[0027] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A machining fixture for a CNC grinding machine, comprising a metal mounting seat (1), characterized in that: A carbon steel support block (2) is installed on the top of the metal mounting seat (1), and a clamping device (3) is fixed on the top of the metal mounting seat (1); a fixed carbon steel rod (4) is installed on the top of the clamping device (3), and a replacement device (5) is installed on the outside of the fixed carbon steel rod (4), and a clamping and positioning sleeve (6) of multiple sizes is fixed on the outside of the replacement device (5); The clamping device (3) comprises an electric push rod (31), a carbon steel rack (32) is fixed to one end of the output shaft of the electric push rod (31), a stable mounting seat (33) is fixed to the top of the metal mounting seat (1), a metal shaft (34) is connected to the top of the stable mounting seat (33) via a bearing, a first gear (35) is fixed to the outside of the metal shaft (34), a second gear (36) is fixed to the outside of the metal shaft (34), a cast iron rack (37) is meshed on the outside of the first gear (35), and a guide groove (38) is provided inside the stable mounting seat (33); The replacement device (5) comprises an installation connection sleeve (51), one side of the installation connection sleeve (51) is fixed with a carbon steel threaded sleeve (52), one side of the carbon steel threaded sleeve (52) is threadedly connected with a carbon steel nut (53) passing through the other side thereof, and the top of the installation connection sleeve (51) is fixed with a fixing shell (54).

2. A machining fixture for a CNC grinding machine according to claim 1, characterized in that: A support spring (56) is fixed to the inner top wall of the fixed shell (54); the bottom of the support spring (56) is connected to a limiting plate (57); a reinforcing block (58) is installed at the bottom of the limiting plate (57); a roller metal sleeve (59) is fixed to one end of the limiting plate (57); the interior of the roller metal sleeve (59) is rotatably connected to a guide wheel (55) via a rotating shaft.

3. A machining fixture for a CNC grinding machine according to claim 2, characterized in that: The installation connection sleeve (51) is movably sleeved on the outer side of the fixed carbon steel rod (4), and the installation connection sleeve (51) and the fixed carbon steel rod (4) are fixedly connected via a carbon steel nut (53).

4. A machining fixture for a CNC grinding machine according to claim 2, characterized in that: A threaded hole is provided inside the fixed carbon steel rod (4), and anti-slip grooves are provided on the outer side of the carbon steel nut (53).

5. The processing fixture for a CNC grinding machine according to claim 1, characterized in that: A sliding block is provided at the bottom of the carbon steel rack (32), and the sliding block at the bottom of the carbon steel rack (32) is slidably connected to the stable mounting seat (33).

6. A machining fixture for a CNC grinding machine according to claim 1, characterized in that: A guide block is provided at the bottom of the cast iron rack (37), and the guide block at the bottom of the cast iron rack (37) is slidably connected to the stable mounting seat (33).

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