Tap chuck

Abstract

The utility model discloses a tap chuck which comprises a connecting device, a fixing device comprises a second thread, a second hexagonal notch, a limiting hole and a handle cover, the fixing device is movably connected to the lower portion of the connecting device, and a chuck device is movably connected to the interior of the fixing device. The chuck device comprises an elastic clamp, a clamping groove, a groined groove and a mounting groove, the mounting groove is formed in the elastic clamp, the groined groove is formed in the periphery of the mounting groove, the clamping groove is formed in the upper end of the elastic clamp, the mounting groove penetrates through the elastic clamp, the clamping groove is an annular notch, and the clamping groove is buckled with a groove in the inner side of the elastic clamp. Through the structure, the chuck device is arranged for clamping the screw tap, the groined groove is arranged for sleeving the square on the screw tap handle and preventing the screw tap from slipping, and the chuck is arranged on the ER chuck body and is matched with a machine tool for tapping, so that the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tap chucks, and particularly relates to a tap chuck. Background Art

[0002] A tap chuck is a machine tool fixture for internal thread processing and is widely used in the field of machining. By clamping the tap, it ensures the correct position and stability of the tap during the processing, improving the accuracy and efficiency of thread processing. The design and manufacture of tap chucks involve materials science, mechanical design, and precision manufacturing technologies. The development of tap chucks is closely related to the progress of the machine tool industry. The technological development from manual clamping to mechanical, hydraulic, and pneumatic clamping shows the continuous improvement of the technical level of tap chucks and the expansion of their application fields. Currently, the tap chuck industry has formed a relatively complete industrial chain, with a complete range of product types and a relatively high technical level. Many domestic and foreign machine tool manufacturers and fixture producers are actively researching and developing and producing various types of tap chucks. The market demand for tap chucks is increasing with the rapid development of the manufacturing industry, and users' requirements for the accuracy, efficiency, stability, etc. of the chucks are also getting higher and higher. In the future, with the development of technologies such as intelligent manufacturing and precision manufacturing, the tap chuck industry will develop in the direction of high precision, high efficiency, and high stability, and the products will be more personalized and diversified.

[0003] When using a pistol drill for tapping now, usually a drill chuck is used to clamp the middle circular handle at the rear end of the tap for tapping. It is easy to cause the tap to slip due to insufficient friction between the drill chuck and the tap, thereby damaging the drill chuck and the tap, reducing work efficiency, and increasing production costs. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a tap chuck. The cross-shaped groove is set to hold the square on the tap shank to prevent the tap from slipping. It is installed on the ER chuck body and can effectively improve work efficiency when cooperating with the machine tool for tapping processing.

[0005] To achieve the above purpose, a tap chuck is provided, which includes a connecting device. A fixing device is movably connected below the connecting device, and a chuck device is movably connected inside the fixing device. By setting the connecting device, it is convenient to play a connecting role. By setting the fixing device, it is to play a fixing and installing role. By setting the chuck device, it is convenient to play a clamping role.

[0006] According to the described tap chuck, the connecting device includes a pull rod, a cone, a limit notch, a limit ring, a limit groove, a first thread, and a first hexagonal notch. The lower surface of the pull rod is fixedly connected to the upper surface of the cone. The limit ring is fixedly connected to the lower surface of the limit notch. The limit notch is provided on the outer side of the limit ring, and the number of limit notches is two and their positions are symmetric to each other. The pull rod is provided to facilitate the fixation by the machine. The limit notch is provided to facilitate the functions of limiting and fixing. The limit ring is provided to facilitate the limiting function. The limit groove is provided to facilitate the gripping function. The first thread is provided to facilitate the functions of fixing and connecting. The first hexagonal notch is provided to facilitate the functions of fastening and disassembling.

[0007] According to the described tap chuck, a limit groove is provided between the first hexagonal notch and the limit ring. The first thread is provided below the first hexagonal notch. The limit groove is annular, and the cone is a flat-top cone. The annular limit groove is provided to facilitate the gripping function.

[0008] According to the described tap chuck, the fixing device includes a second thread, a second hexagonal notch, a limit hole, and a handle cover. The second thread is provided on the inner surface of the handle cover. The second thread is provided to facilitate the mutual fastening with the first thread. The second hexagonal notch is provided to facilitate increasing the force-bearing area and facilitating fastening and disassembling. The limit hole is provided to facilitate the function of restricting the chuck. The handle cover is provided to facilitate the functions of disassembling and installing.

[0009] According to the described tap chuck, the limit hole is opened at the bottom of the handle cover. The second hexagonal notch is provided on the outer surface of the handle cover, and the inner surface of the second hexagonal notch is circular. The circular inner surface of the second hexagonal notch is provided to facilitate the setting of the thread.

[0010] According to the described tap chuck, the chuck device includes an elastic fixture, a card slot, a cross-shaped groove, and an installation groove. The installation groove is provided inside the elastic fixture, and the cross-shaped groove is provided around the installation groove. The elastic fixture is provided to extend the service life. The card slot is provided to facilitate the functions of limiting and installation. The cross-shaped groove is provided to prevent the tap from slipping. The installation groove is provided to facilitate the installation of the tap.

[0011] According to the described tap chuck, the card slot is provided at the upper end of the elastic fixture. The installation groove penetrates the elastic fixture. The card slot is an annular notch, and the card slot is mutually buckled with the groove inside the elastic fixture. The elastic fixture is provided to facilitate the clamping of the tap.

[0012] Advantages of the present utility model: The fixing device is provided to facilitate fixing and installation. The collet device is provided to clamp the tap. The cross-shaped groove is provided to fit over the square on the tap shank to prevent the tap from slipping. It is installed on the ER collet body and cooperates with the machine tool for tapping, effectively improving the working efficiency.

[0013] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. Brief Description of the Drawings

[0014] The present utility model will be further described below with reference to the drawings and embodiments;

[0015] Figure 1 is an overall structural schematic diagram of a tap collet of the present utility model;

[0016] Figure 2 is a partial structural schematic diagram of a tap collet of the present utility model;

[0017] Figure 3 is a schematic diagram of the fixing device of a tap collet of the present utility model;

[0018] Figure 4 is a schematic diagram of the collet device of a tap collet of the present utility model.

[0019] Legend Explanation:

[0020] 1. Connection device; 2. Fixing device; 3. Collet device; 101. Pull rod; 102. Cone; 104. Limit ring; 103. Limit notch; 105. Limit groove; 107. First hexagonal notch; 106. First thread; 204. Handle cover; 201. Second thread; 202. Second hexagonal notch; 203. Limit hole; 304. Installation groove; 302. Card slot; 301. Elastic clamp; 303. Cross-shaped groove. Detailed Description of the Specific Embodiment

[0021] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0022] Refer to Figures 1 to 4, in an embodiment of the utility model, a tap chuck includes a connecting device 1. A fixing device 2 is movably connected below the connecting device 1, and a chuck device 3 is movably connected inside the fixing device 2. The connecting device 1 includes a pull rod 101, a cone 102, a limit notch 103, a limit ring 104, a limit groove 105, a first thread 106, and a first hexagonal notch 107. The lower surface of the pull rod 101 is fixedly connected to the upper surface of the cone 102. The limit ring 104 is fixedly connected to the lower surface of the limit notch 103. The limit notch 103 is arranged outside the limit ring 104. The number of the limit notches 103 is two and their positions are symmetric to each other. The limit notch 103 corresponds to the machine tool, which is convenient for limiting and maintaining stability. The inside of the cone 102 is a cavity.

[0023] A limit groove 105 is arranged between the first hexagonal notch 107 and the limit ring 104. The first thread 106 is arranged below the first hexagonal notch 107. The limit groove 105 is annular. The cone 102 is a flat-top cone. The fixing device 2 includes a second thread 201, a second hexagonal notch 202, a limit hole 203, and a handle cover 204. The second thread 201 is arranged on the inner surface of the handle cover 204. The first thread 106 and the second thread 201 are threadedly connected to each other, which is convenient for fixing and disassembling.

[0024] The limit hole 203 is opened at the bottom of the handle cover 204. The second hexagonal notch 202 is arranged on the outer surface of the handle cover 204. The inner surface of the second hexagonal notch 202 is circular. The chuck device 3 includes an elastic fixture 301, a card slot 302, a cross-shaped groove 303, and an installation groove 304. The installation groove 304 is arranged inside the elastic fixture 301. The cross-shaped groove 303 is arranged around the installation groove 304. The card slot 302 is arranged at the upper end of the elastic fixture 301. The installation groove 304 penetrates through the elastic fixture 301. The card slot 302 is an annular notch. The card slot 302 is buckled with the groove inside the elastic fixture 301. The hexagonal notch can increase the force-bearing area and friction, and it is convenient to use a wrench for fastening.

[0025] Working principle: First, check whether the components can be used normally. Place the main body of the tool holder upside down. The limit notch 103 can play a role in limiting and fixing. Then, use a wrench to rotate the second thread 201 counterclockwise to open the handle cover 204 and remove the old ERG tapping chuck. Flush the oil stains on the tool holder and dry the moisture. Replace it with a new type of ERG tapping chuck. The new type of ERG tapping chuck can effectively prevent the tap from slipping, thereby improving the processing efficiency. Take out the elastic fixture 301 (new type of ERG tapping chuck), and make a preliminary fixation through the snap of the groove between the clamping groove 302 on the elastic fixture 301 and the handle cover 204. Place the bottom of the milling cutter at the installation groove 304, and adjust the length of the milling cutter protruding from the elastic fixture 301 according to requirements. Then, fasten the handle cover 204 through the first thread 106 and the second thread 201. First, fasten it manually, and then use a wrench to hold the second hexagonal notch 202 to further fasten the handle cover 204. After installation, check whether the milling cutter is installed in place, and then adjust according to requirements. Then, hold the first hexagonal notch 107 with your hand, align the notch of the limit notch 103 with the installation part of the machine tool, and install it.

[0026] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. A tap chuck, comprising a connecting device (1), characterized in that, A fixing device (2) is movably connected below the connecting device (1), and a chuck device (3) is movably connected inside the fixing device (2). The connecting device (1) includes a pull rod (101), a cone (102), a limit notch (103), a limit ring (104), a limit groove (105), a first thread (106), and a first hexagonal notch (107). The lower surface of the pull rod (101) is fixedly connected to the upper surface of the cone (102). The limit ring (104) is fixedly connected to the lower surface of the limit notch (103). The limit notch (103) is arranged outside the limit ring (104). The number of the limit notches (103) is two and their positions are symmetrical to each other. The fixing device (2) includes a second thread (201), a second hexagonal notch (202), a limit hole (203), and a handle cover (204). The second thread (201) is arranged on the inner surface of the handle cover (204). The chuck device (3) includes an elastic clamp (301), a clamping groove (302), a cross-shaped groove (303), and a mounting groove (304). The mounting groove (304) is arranged inside the elastic clamp (301). The cross-shaped groove (303) is arranged around the mounting groove (304).

2. The tap chuck according to claim 1, characterized in that, A limit groove (105) is arranged between the first hexagonal notch (107) and the limit ring (104). The first thread (106) is arranged below the first hexagonal notch (107). The limit groove (105) is annular. The cone (102) is a flat-top cone.

3. A tap chuck according to claim 1, characterized in that, The limit hole (203) is opened at the bottom of the handle cover (204). The second hexagonal notch (202) is arranged on the outer surface of the handle cover (204). The inner surface of the second hexagonal notch (202) is circular.

4. A tap chuck according to claim 1, characterized in that, The clamping groove (302) is arranged at the upper end of the elastic clamp (301). The mounting groove (304) penetrates through the elastic clamp (301). The clamping groove (302) is an annular notch. The clamping groove (302) is clamped with the groove inside the elastic clamp (301).

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