Clamping mechanism for diamond trepanning drill finishing equipment

Abstract

The utility model relates to the technical field of diamond trepanning drill finishing equipment, in particular to a clamping mechanism for diamond trepanning drill finishing equipment. According to the technical scheme, the clamping mechanism for the diamond trepanning drill trimming equipment comprises a tool assembly and further comprises a main shaft assembly and a sleeve brush assembly; a main shaft assembly is arranged at the upper end of the tool assembly; a sleeve brush assembly is arranged above the main shaft assembly; the brush sleeving assembly comprises a tool frame, a frame base, a limiting baffle and a discharging carbon brush. The synchronous transmission wheel is driven by the stepping motor to drive the main shaft transmission wheel and the main shaft connected with the main shaft transmission wheel to rotate synchronously, so that a workpiece placed on the main shaft rotates stably at a constant speed, the workpiece is limited by matching with the limiting baffle on one side of the tool frame, and the discharging carbon brush pressed down by the spring is used for pressing down the workpiece; and compared with a transmission diamond trepanning drill clamping machining mechanism, the workpiece clamping measurement precision and the machining convenience and stability are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of diamond core drill dressing equipment, and particularly relates to a clamping mechanism for diamond core drill dressing equipment. Background Art

[0002] The design of diamond core drill bits needs to fully consider the physical and chemical properties of the materials to be processed, such as hardness, toughness, thermal conductivity, etc. For the new lightweight and high-performance materials widely used in aerospace products, when diamond drill bits are used to process small holes and fine holes, extremely high requirements are placed on the machining accuracy and surface quality of the holes.

[0003] At present, the manufacturing of existing diamond core drill bits adopts the forming electrode processing method. After the electrode wears, it usually needs to be scrapped, which not only increases the production cost, but also limits the production efficiency. Moreover, for workpieces with longer lengths, the method of clamping at the leftmost end and machining at the rightmost end may cause vibration and deformation during the machining process. Especially when the workpiece does not rotate during the machining process, it is more likely to cause a decline in machining accuracy. This clamping method may also lead to an unstable relative position between the tool and the workpiece, increasing the machining difficulty and the rejection rate.

[0004] Therefore, aiming at the above-mentioned fixed structure of the existing diamond core drill machining, because it usually adopts the forming electrode processing method, which results in high electrode wear and scrapping costs and no rotation step during workpiece clamping, causing large workpiece clamping measurement errors and thus low machining yield, a clamping mechanism for diamond core drill dressing equipment can be designed. Summary of the Utility Model

[0005] In order to overcome the problems of the existing fixed structure of diamond core drill machining, because it usually adopts the forming electrode processing method, which results in high electrode wear and scrapping costs and no rotation step during workpiece clamping, causing large workpiece clamping measurement errors and thus low machining yield.

[0006] The technical solution of the utility model is: a clamping mechanism for diamond core drill dressing equipment, which includes a tooling component, and also includes a spindle component and a sleeve brush component; the spindle component is arranged at the upper end of the tooling component; the sleeve brush component is arranged above the spindle component; the sleeve brush component includes a tooling frame, a frame seat, a limit baffle, and a discharge carbon brush.

[0007] Preferably, a stepping motor drives a synchronous transmission wheel to drive a main shaft transmission wheel and the connected main shaft to rotate synchronously, so that the workpiece placed on the main shaft rotates uniformly and stably. The workpiece is limited by a limit baffle on one side of the tooling fixture, thus maintaining the positioning and rotation stability of the workpiece. Then, a discharge carbon brush pressed by a spring presses down on the workpiece, so as to stabilize the rotation of the workpiece for easy measurement and perform discharge treatment on the workpiece at the same time. Compared with the traditional diamond trepanning drill clamping and processing mechanism, it effectively improves the workpiece clamping and measurement accuracy and the stability of processing convenience, and solves the problem of the fixed structure of the existing diamond trepanning drill processing. Because it usually adopts the forming electrode processing method, the cost of electrode wear and scrapping is high, and there is no rotation step when clamping the workpiece, resulting in large clamping and measurement errors of the workpiece and thus low processing yield.

[0008] Preferably, the tooling assembly includes a tooling housing, a stepping motor, a synchronous transmission wheel, and a main shaft sleeve. A stepping motor is arranged inside the tooling housing, and the outer shell of the stepping motor is fixedly connected to the inner wall of the tooling housing. A synchronous transmission wheel is arranged at the front end of the stepping motor, and the synchronous transmission wheel is drivingly connected to the output end of the stepping motor.

[0009] Preferably, a main shaft sleeve is arranged at the upper end of the tooling housing, and the main shaft sleeve is integrally formed with the tooling housing. The main shaft sleeve is used as the connecting structure of the main shaft, and the diameter of the main shaft is larger than that of the main shaft sleeve, so that the workpiece is in direct contact with the main shaft and is driven to rotate when placed.

[0010] Preferably, the main shaft assembly includes a main shaft and a main shaft transmission wheel. The main shafts are arranged on both sides inside the main shaft sleeve, and the main shafts are rotationally connected to the main shaft sleeve through bearings. A stepping motor drives a synchronous transmission wheel to drive the main shaft transmission wheel and the connected main shaft to rotate synchronously, so that the workpiece placed on the main shaft rotates uniformly and stably. The workpiece is limited by a limit baffle on one side of the tooling fixture, thus maintaining the positioning and rotation stability of the workpiece. Then, a discharge carbon brush pressed by a spring presses down on the workpiece, so as to stabilize the rotation of the workpiece for easy measurement and perform discharge treatment on the workpiece at the same time. Compared with the traditional diamond trepanning drill clamping and processing mechanism, it effectively improves the workpiece clamping and measurement accuracy and the stability of processing convenience.

[0011] Preferably, a main shaft transmission wheel is arranged at the front end of each main shaft, and the main shaft transmission wheel is fixedly connected to the main shaft. The synchronous transmission wheel is belt-synchronously drivingly connected to the main shaft transmission wheel. The main shaft rotating smoothly is used to support the diamond trepanning drill workpiece and drive it to rotate. The clamping method of the rotating workpiece effectively improves the workpiece clamping stability and is beneficial to the accuracy during drilling processing. Compared with the fixed clamping method for processing, it reduces the circumferential measurement and processing errors.

[0012] Preferably, a tooling rack is arranged above the main shaft; a rack seat is arranged on one side of the lower end of the tooling rack, and the rack seat is fixedly connected to the outer shell of the tooling housing, and the rack seat is rotationally connected to the tooling rack in a damped manner.

[0013] Preferably, limiting baffles and discharge carbon brushes are respectively arranged on both sides of the tooling rack, and the discharge carbon brushes are elastically connected to the tooling rack by springs, and the discharge carbon brushes are connected by the downward elastic force of the springs; the diamond trepanning drill workpiece is placed above the main shafts, and it is pressed and clamped by the discharge carbon brushes.

[0014] Advantages of the present utility model:

[0015] 1. In the existing fixed structure for diamond trepanning drill processing, since it usually adopts the formed electrode processing method, the cost of electrode wear and scrapping is high, and there is no rotation step during workpiece clamping, resulting in large clamping and measurement errors of the workpiece and thus low processing yield; the stepping motor drives the synchronous transmission wheel to drive the main shaft transmission wheel and the connected main shaft to rotate synchronously, so that the workpiece placed on the main shaft rotates uniformly and stably, and the limiting baffle on one side of the tooling rack is used to limit the workpiece, thus maintaining the positioning and rotation stability of the workpiece. Then, the discharge carbon brush pressed by the spring presses down on the workpiece, so as to stabilize the rotation of the workpiece for easy measurement and at the same time perform discharge treatment on the workpiece. Compared with the traditional diamond trepanning drill clamping and processing mechanism, it effectively improves the clamping and measurement accuracy and processing convenience and stability of the workpiece; it solves the problem that in the existing fixed structure for diamond trepanning drill processing, since it usually adopts the formed electrode processing method, the cost of electrode wear and scrapping is high, and there is no rotation step during workpiece clamping, resulting in large clamping and measurement errors of the workpiece and thus low processing yield.

[0016] 2. Through the setting of the main shaft, the steadily rotating main shaft is used to support the diamond trepanning drill workpiece and drive it to rotate. The clamping method of the rotating workpiece effectively improves the clamping stability of the workpiece and is beneficial to the accuracy during drilling processing, reducing the circumferential measurement and processing errors compared with the fixed clamping method. Description of the Drawings

[0017] Figure 1 Shown is the overall three-dimensional structure schematic diagram of a clamping mechanism of a diamond trepanning drill dressing equipment of the present utility model;

[0018] Figure 2 Shown is the overall front three-dimensional structure schematic diagram of a clamping mechanism of a diamond trepanning drill dressing equipment of the present utility model;

[0019] Figure 3 Shown is the three-dimensional structure schematic diagram of a sleeve brush assembly of a clamping mechanism of a diamond trepanning drill dressing equipment of the present utility model;

[0020] Figure 4 The figure shows a combined three-dimensional structural schematic diagram of a tooling component and a spindle component of a clamping mechanism for a diamond core drill dressing device of the present utility model.

[0021] The reference signs in the accompanying drawings are: 1, tooling component; 2, spindle component; 3, sleeve brush component; 101, tooling housing; 102, stepping motor; 103, synchronous transmission wheel; 104, spindle sleeve; 201, spindle; 202, spindle transmission wheel; 301, tooling frame; 302, frame base; 303, limit baffle; 304, discharge carbon brush. Specific embodiments

[0022] The present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please refer to Figures 1-4 , the present utility model provides an embodiment: a clamping mechanism for a diamond core drill dressing device, including a tooling component 1, and further including a spindle component 2 and a sleeve brush component 3; a spindle component 2 is arranged at the upper end of the tooling component 1; a sleeve brush component 3 is arranged above the spindle component 2; the sleeve brush component 3 includes a tooling frame 301, a frame base 302, a limit baffle 303, and a discharge carbon brush 304.

[0024] Please refer to Figures 1-4 , in this embodiment, the tooling component 1 includes a tooling housing 101, a stepping motor 102, a synchronous transmission wheel 103, and a spindle sleeve 104; a stepping motor 102 is arranged inside the tooling housing 101, and the outer shell of the stepping motor 102 is fixedly connected to the inner wall of the tooling housing 101; a synchronous transmission wheel 103 is arranged at the front end of the stepping motor 102, and the synchronous transmission wheel 103 is drivingly connected to the output end of the stepping motor 102; a spindle sleeve 104 is arranged at the upper end of the tooling housing 101, and the spindle sleeve 104 is integrally formed with the tooling housing 101; the spindle component 2 includes a spindle 201 and a spindle transmission wheel 202; spindles 201 are arranged on both sides inside the spindle sleeve 104, and the spindles 201 are rotationally connected to the spindle sleeve 104 by bearings; a spindle transmission wheel 202 is arranged at the front end of each spindle 201, and the spindle transmission wheel 202 is fixedly connected to the spindle 201; the synchronous transmission wheel 103 is belt drivingly connected to the spindle transmission wheel 202.

[0025] Please refer to Figures 1-4, in this embodiment, a tooling rack 301 is provided above the main shaft 201; a pedestal 302 is provided on one side of the lower end of the tooling rack 301, and the pedestal 302 is fixedly connected to the outer shell of the tooling housing 101, and the pedestal 302 is rotationally connected to the tooling rack 301 in a damped manner; limiting baffles 303 and discharge carbon brushes 304 are respectively provided on both sides of the tooling rack 301, and the discharge carbon brushes 304 are elastically connected to the tooling rack 301 by springs, and the discharge carbon brushes 304 are connected under the downward elastic force of the springs; the diamond trepanning drill workpiece is placed above the main shaft 201, and it is pressed and clamped by the discharge carbon brush 304.

[0026] During the operation, the stepping motor 102 drives the synchronous transmission wheel 103 to drive the main shaft transmission wheel 202 and the connected main shaft 201 to rotate synchronously, so that the workpiece placed on the main shaft 201 rotates uniformly and stably, and the limiting baffle 303 on one side of the tooling rack 301 is used to limit the workpiece, thereby maintaining the positioning and rotational stability of the workpiece. Then, the discharge carbon brush 304 pressed by the spring is used to press the workpiece, so as to stabilize the rotation of the workpiece for easy measurement and perform discharge treatment on the workpiece at the same time. Compared with the traditional diamond trepanning drill clamping and processing mechanism, it effectively improves the workpiece clamping measurement accuracy and processing convenience and stability; it solves the problem of the fixed structure of the existing diamond trepanning drill processing. Because it usually adopts the formed electrode processing method, the cost of electrode wear and scrapping is high, and there is no rotation step when clamping the workpiece, resulting in large clamping measurement errors of the workpiece and thus low processing yield.

[0027] Next, the steadily rotating main shaft 201 is used to support the diamond trepanning drill workpiece and drive it to rotate. The clamping method of the rotating workpiece effectively improves the workpiece clamping stability and is beneficial to the accuracy during drilling. Compared with the fixed clamping method for processing, it reduces the circumferential measurement and processing errors.

[0028] Through the above steps, the stepping motor 102 drives the synchronous transmission wheel 103 to drive the main shaft transmission wheel 202 and the connected main shaft 201 to rotate synchronously, so that the workpiece placed on the main shaft 201 rotates uniformly and stably, and the limiting baffle 303 on one side of the tooling rack 301 is used to limit the workpiece, thereby maintaining the positioning and rotational stability of the workpiece. Then, the discharge carbon brush 304 pressed by the spring is used to press the workpiece, so as to stabilize the rotation of the workpiece for easy measurement and perform discharge treatment on the workpiece at the same time. Compared with the traditional diamond trepanning drill clamping and processing mechanism, it effectively improves the workpiece clamping measurement accuracy and processing convenience and stability, and avoids the problem of the fixed structure of the existing diamond trepanning drill processing. Because it usually adopts the formed electrode processing method, the cost of electrode wear and scrapping is high, and there is no rotation step when clamping the workpiece, resulting in large clamping measurement errors of the workpiece and thus low processing yield.

[0029] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those skilled in the art.

Claims

1. A clamping mechanism for a dressing device of a diamond core drill, comprising a tooling assembly (1), characterized in that: It also includes a main shaft assembly (2) and a brush sleeve assembly (3); the upper end of the tooling assembly (1) is provided with the main shaft assembly (2); the brush sleeve assembly (3) is arranged above the main shaft assembly (2); the brush sleeve assembly (3) includes a tooling frame (301), a frame base (302), a limit baffle (303), and a discharge carbon brush (304).

2. The clamping mechanism for a dressing device of a diamond core drill according to claim 1, characterized in that: The tooling assembly (1) includes a tooling housing (101), a stepping motor (102), a synchronous transmission wheel (103), and a main shaft bushing (104); the stepping motor (102) is arranged inside the tooling housing (101), and the outer shell of the stepping motor (102) is fixedly connected to the inner wall of the tooling housing (101); the synchronous transmission wheel (103) is arranged at the front end of the stepping motor (102), and the synchronous transmission wheel (103) is in transmission connection with the output end of the stepping motor (102).

3. The clamping mechanism for a dressing device of a diamond core drill according to claim 2, characterized in that: The upper end of the tooling housing (101) is provided with the main shaft bushing (104), and the main shaft bushing (104) is integrally formed with the tooling housing (101).

4. The clamping mechanism for a dressing device of a diamond core drill according to claim 3, characterized in that: The main shaft assembly (2) includes a main shaft (201) and a main shaft transmission wheel (202); both sides inside the main shaft bushing (104) are provided with the main shaft (201), and the main shaft (201) is rotationally connected to the main shaft bushing (104) through a bearing.

5. The clamping mechanism for a dressing device of a diamond core drill according to claim 4, characterized in that: The front end of each main shaft (201) is provided with a main shaft transmission wheel (202), and the main shaft transmission wheel (202) is fixedly connected to the main shaft (201); the synchronous transmission wheel (103) is in belt synchronous transmission connection with the main shaft transmission wheel (202).

6. The clamping mechanism of a dressing device for a diamond core drill according to claim 4, characterized in that: The tooling frame (301) is arranged above the main shaft (201); one side of the lower end of the tooling frame (301) is provided with the frame base (302), and the frame base (302) is fixedly connected to the outer shell of the tooling housing (101), and the frame base (302) is in damping rotational connection with the tooling frame (301).

7. The clamping mechanism for a dressing device of a diamond core drill according to claim 6, characterized in that: The two sides of the tooling frame (301) are respectively provided with the limit baffle (303) and the discharge carbon brush (304), and the discharge carbon brush (304) is elastically connected to the tooling frame (301) through a spring, and the discharge carbon brush (304) is connected under the downward elastic force of the spring; the diamond core drill workpiece is placed above the space between the main shafts (201), and it is pressed and clamped by the discharge carbon brush (304).

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