Reed nut drilling tool and drilling device

Abstract

The utility model relates to a reed nut drilling tool which comprises a left support and a right support, a left positioning block is arranged on the left support, a positioning groove with a U-shaped vertical section is formed in the side face, facing the right support, of the left positioning block, a right positioning block is arranged on the right support, and a U-shaped vertical section is formed in the side face, facing the right support, of the right positioning block. The right positioning block is connected with a first translation driving mechanism which drives the right positioning block to translate towards the left positioning block, the side face, facing the left positioning block, of the right positioning block is arranged to be an arc-shaped supporting face, and the upper surface, the lower surface and the supporting face of the right positioning block can be attached to the inner wall of the reed. And a vertical guide through hole is formed in the right positioning block. The utility model further provides a drilling device. The left positioning block and the right positioning block are matched with each other, and the reed nut can be clamped, so that the reed nut is kept stable in the drilling, tapping and reaming processes.

Description

Technical Field

[0001] The utility model belongs to the field of reed nut production equipment, in particular to a reed nut drilling tool and a drilling device. Background Art

[0002] Reed nuts are commonly used fasteners in automobiles, including a U-shaped reed and a nut welded to one side of the reed. At present, the production method of reed nuts is generally to first prepare a U-shaped reed through a bending process, then drill a through hole on the reed, and then weld a standard nut to the reed. Generally speaking, the inner hole of the nut needs to be coaxial with the through hole on the reed, but during welding, the welded material is prone to deformation, and it is difficult to ensure the coaxiality of the inner hole of the nut and the through hole of the reed after welding. Therefore, the applicant has developed a new reed nut production process, that is, first weld a solid column to the reed, and then use a drilling device to drill holes in the reed and the column at the same time, and finally tap the inner wall of the column to obtain the nut, and expand the through hole of the reed to size. In the process of drilling, tapping and expanding, tooling must be used to keep the reed and the column stable, and there is currently no existing tooling that meets the requirements. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a drilling device for drilling, tapping and expanding a reed nut, and also to provide a reed nut drilling tool to ensure that the reed nut remains stable during the drilling, tapping and expanding process.

[0004] To solve the above problems, the technical solution adopted by the utility model is: a spring nut drilling tool, comprising a left support and a right support, the left support is provided with a left positioning block, and the side of the left positioning block facing the right support is provided with a positioning groove with a vertical U-shaped cross-section, the right support is provided with a right positioning block, the right positioning block is connected to a first translation driving mechanism for driving the right positioning block to translate toward the left positioning block, the side of the right positioning block facing the left positioning block is provided with an arc-shaped supporting surface, the upper surface, lower surface and supporting surface of the right positioning block can fit the inner wall of the spring, and the right positioning block is provided with a vertical guide through hole.

[0005] Furthermore, a left connecting block is provided on the left support, and the left positioning block is detachably connected to the left connecting block; a right connecting block is provided on the right support, and the right positioning block is detachably installed on the right connecting block, the right connecting block is slidably matched with the right support, and the right connecting block is connected to the first translation drive mechanism.

[0006] Furthermore, the left connecting block is slidably matched with the left support, and the left connecting block is connected to a second translation driving mechanism for driving the left connecting block to translate toward the right support.

[0007] Furthermore, the second translation drive mechanism and the first translation drive mechanism are both cylinders.

[0008] The drilling device comprises a frame, on which the above-mentioned reed nut drilling tool is arranged, a drilling assembly is arranged below the reed nut drilling tool, and a tapping assembly is arranged above the reed nut drilling tool.

[0009] Furthermore, the drilling assembly includes a first lifting mechanism, the upper end of the first lifting mechanism is connected to a first lifting seat, a drilling motor is provided on the first lifting seat, and the drilling motor is detachably connected to a vertical drill bit.

[0010] Furthermore, the tapping assembly includes a second lifting mechanism, the lower end of the second lifting mechanism is connected to a second lifting seat, a tapping motor is arranged on the second lifting seat, and the tapping motor is detachably connected to a vertical tap.

[0011] The beneficial effect of the utility model is that the left positioning block and the right positioning block of the utility model cooperate with each other to clamp the reed nut, so that the reed nut remains stable during the processes of drilling, tapping and expanding.

[0012] The drilling device of the utility model can complete the drilling, tapping and hole enlarging processes by only clamping the spring nut once, and has high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main cross-section of the reed nut drilling tool of the utility model;

[0014] Figure 2 yes Figure 1 A-direction schematic diagram in FIG.

[0015] Figure 3 It is a schematic diagram of clamping of the reed nut drilling tool of the utility model;

[0016] Figure 4 It is a schematic diagram of the drilling device of the utility model;

[0017] Figure markings: 1—left support; 2—right support; 3—left positioning block; 4—positioning groove; 5—right positioning block; 6—first translation drive mechanism; 7—support surface; 8—left connecting block; 9—right connecting block; 10—left connecting block; 11—guide through hole; 20—frame; 21—first lifting mechanism; 22—first lifting seat; 23—drilling motor; 24—drill bit; 25—second lifting mechanism; 26—second lifting seat; 27—tapping motor; 28—tap; 100—spring. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] The reed nut drilling tool of the utility model is as follows: Figure 1 , Figure 2 and Figure 3 As shown, it includes a left support 1 and a right support 2, the left support 1 is provided with a left positioning block 3, and the side of the left positioning block 3 facing the right support 2 is provided with a positioning groove 4 with a vertical U-shaped cross-section, the right support 2 is provided with a right positioning block 5, the right positioning block 5 is connected to a first translation driving mechanism 6 for driving the right positioning block 5 to translate toward the left positioning block 3, the side of the right positioning block 5 facing the left positioning block 3 is provided with an arc-shaped supporting surface 7, the upper surface, lower surface and supporting surface 7 of the right positioning block 5 can fit the inner wall of the spring leaf 100, and the right positioning block 5 is provided with a vertical guide through hole 11.

[0020] The left support 1 and the right support 2 are used to support other components and can also be fixedly installed on the drilling device, and a metal base can be used. The left positioning block 3 and the right positioning block 5 are used to position the spring 100. Specifically, the spring 100 is U-shaped, with one end being a bent end and the other end being an open end. The shape and size of the right positioning block 5 are the same as the shape and size of the inner cavity of the spring 100, so that the right positioning block 5 can be inserted into the spring 100, and after insertion, the upper surface, lower surface and supporting surface 7 of the right positioning block 5 fit the inner wall of the spring 100, and the shape and size of the positioning groove 4 on the left positioning block 3 are the same as the shape and size of the outer wall of the bent end of the spring 100, so that the bent end of the spring 100 can be inserted into the positioning groove 4, and the outer wall of the spring 100 fits the inner wall of the positioning groove 4. The positioning groove 4 and the right positioning block 5 cooperate to press the spring 100. The diameter of the guide through hole 11 is larger than the diameter of the through hole to be processed in the spring leaf 100 , so as to ensure that the drilling and expanding elements can penetrate the guide through hole 11 .

[0021] During processing, first weld the solid nut column to the spring leaf 100, then put the spring leaf 100 on the right positioning block 5, and then use the first translation drive mechanism 6 to push the right positioning block 5 to move in the direction of the left positioning block 3 until the bent end of the spring leaf 100 extends into the positioning groove 4. The first translation drive mechanism 6 applies a certain pressure so that the right positioning block 5 presses the spring leaf 100, and the spring leaf 100 can be kept fixed, and then the spring leaf 100 and the nut column are punched.

[0022] The tooling can quickly clamp and position the reed 100, and can quickly remove the reed 100 after processing, and is easy to operate.

[0023] In order to facilitate the clamping and positioning of springs 100 of different sizes, a left connecting block 8 is provided on the left support 1, and the left positioning block 3 is detachably connected to the left connecting block 8; a right connecting block 9 is provided on the right support 2, and the right positioning block 5 is detachably installed on the right connecting block 9, and the right connecting block 9 is slidably matched with the right support 2, and the right connecting block 9 is connected to the first translation driving mechanism 6. The left positioning block 3 and the left connecting block 8 can be connected by bolts, and the right positioning block 5 and the right connecting block 9 can also be connected by bolts. When it is necessary to position springs 100 of different sizes, the left positioning block 3 and the right positioning block 5 can be replaced, so that the positioning groove 4 on the side wall of the left positioning block 3 is adapted to the shape of the bent end of the spring 100, and the size of the right positioning block 5 is adapted to the size of the inner cavity of the spring 100.

[0024] The left connecting block 8 can be fixedly installed on the left support 1, but if it is fixedly installed, the position of the left positioning block 3 cannot be adjusted. In order to facilitate the adjustment of the position of the left positioning block 3, the left connecting block 8 is slidably matched with the left support 1, and the left connecting block 8 is connected to a second translation driving mechanism 10 that drives the left connecting block 8 to translate toward the right support 2. The second translation driving mechanism 10 can drive the left connecting block 8 and the left positioning block 3 to move horizontally, adjust the position of the left positioning block 3, and improve the flexibility of use.

[0025] The second translation drive mechanism 10 and the first translation drive mechanism 6 are both cylinders, and hydraulic cylinders and other devices may also be used.

[0026] The drilling device of the utility model is as follows Figure 4 As shown, it includes a frame 20, on which there are Figures 1 to 3 The reed nut drilling tool shown has a drilling assembly disposed below the reed nut drilling tool and a tapping assembly disposed above the reed nut drilling tool. Specifically, the left support 1 and the right support 2 are both fixedly mounted on the frame 20 and can be mounted by bolts or welded to the frame 20. The drilling assembly is used to drill and expand the reed nut, and the tapping assembly is used to tap the nut.

[0027] The drilling assembly specifically includes a first lifting mechanism 21, the upper end of which is connected to a first lifting seat 22, a drilling motor 23 is provided on the first lifting seat 22, and the drilling motor 23 is detachably connected to a vertical drill bit 24. The first lifting mechanism 21 can use equipment such as a hydraulic cylinder, the first lifting seat 22 can slide with the frame 20 to ensure stability during the lifting process, the drilling motor 23 uses a servo motor, a conventional drill bit clamping head can be connected to the main shaft of the drilling motor 23, and the drill bit 24 is clamped by the drill bit clamping head, and the drill bit 24 uses a conventional drilling drill bit or a reaming drill bit. Since the drill bit 24 can be detachably installed, the drill bits 24 of different specifications can be replaced to achieve processing and reaming of through holes of various sizes.

[0028] The tapping assembly includes a second lifting mechanism 25, the lower end of which is connected to a second lifting seat 26, a tapping motor 27 is provided on the second lifting seat 26, and the tapping motor 27 is detachably connected to a vertical tap 28. The second lifting mechanism 25 can use equipment such as a hydraulic cylinder, the second lifting seat 26 can slide with the frame 20 to ensure stability during the lifting process, the tapping motor 27 uses a servo motor, and the spindle of the tapping motor 27 can also be provided with an existing clamping head for clamping and fixing the tap 28. The tap 28 can use an existing conventional standard tap, and since the tap 28 can be detachably installed on the tapping motor 27, taps 28 of different specifications can be replaced to complete the processing of threads of various specifications.

[0029] The specific processing process is as follows: after the spring 100 is fixed on the tooling, the guide through hole 11, the drill bit 24 and the tap 28 on the right positioning block 5 should be coaxial. The first lifting mechanism 21 is used to push the first lifting seat 22, the drilling motor 23 and the drill bit 24 to move upward. When the drill bit 24 is about to contact the spring 100, the drilling motor 23 is started, and the drilling motor 23 drives the drill bit 24 to rotate. The drill bit 24 continues to move upward to drill holes in the spring 100 and the nut column. The drill bit 24 penetrates the guide through hole 11 to form a coaxial through hole on the spring 100 and the nut column. After the drilling is completed, the first lifting mechanism 21 drives the first lifting seat 22 to reset downward, remove the original drill bit 24, and install the expanded drill bit 24, and then expand the through hole on the spring 100. At the same time, the second lifting mechanism 25 can be used to drive the second lifting seat 26, the tapping motor 27 and the tap 28 to move downward, and the tap 28 enters the through hole of the nut column to perform tapping to form a thread on the inner wall of the nut column. After the hole expansion and tapping are completed, the tap 28 and the drill bit 24 are reset to obtain a reed nut product.

[0030] In the utility model, the solid nut column is first welded to the spring 100, and when drilling, the inner hole of the spring 100 and the nut column can be formed synchronously at one time, so that the coaxiality of the spring 100 and the inner hole of the nut column can be ensured, and the error caused by welding deformation is eliminated. Only one clamping is required to complete drilling, hole expansion and tapping, thereby ensuring processing efficiency.

[0031] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reed nut drilling tool, characterized in that: The invention comprises a left support (1) and a right support (2), wherein the left support (1) is provided with a left positioning block (3), and a positioning groove (4) with a vertical U-shaped cross section is provided on the side of the left positioning block (3) facing the right support (2), and the right support (2) is provided with a right positioning block (5), and the right positioning block (5) is connected to a first translation drive mechanism (6) for driving the right positioning block (5) to translate toward the left positioning block (3), and the side of the right positioning block (5) facing the left positioning block (3) is provided with an arc-shaped supporting surface (7), and the upper surface, the lower surface and the supporting surface (7) of the right positioning block (5) can fit the inner wall of the spring sheet (100), and the right positioning block (5) is provided with a vertical guide through hole (11).

2. The reed nut drilling tool as claimed in claim 1, characterized in that: The left support (1) is provided with a left connecting block (8), and the left positioning block (3) is detachably connected to the left connecting block (8); the right support (2) is provided with a right connecting block (9), and the right positioning block (5) is detachably mounted on the right connecting block (9), the right connecting block (9) is slidably matched with the right support (2), and the right connecting block (9) is connected to the first translation driving mechanism (6).

3. The reed nut drilling tool as claimed in claim 2, characterized in that: The left connecting block (8) is slidably matched with the left support (1), and the left connecting block (8) is connected to a second translation driving mechanism (10) for driving the left connecting block (8) to translate toward the right support (2).

4. The reed nut drilling tool as claimed in claim 3, characterized in that: The second translation drive mechanism (10) and the first translation drive mechanism (6) are both cylinders.

5. A drilling device, characterized in that: It comprises a frame (20), on which the reed nut drilling tool according to claim 1 is arranged, a drilling assembly is arranged below the reed nut drilling tool, and a tapping assembly is arranged above the reed nut drilling tool.

6. The drilling device according to claim 5, characterized in that: The drilling assembly comprises a first lifting mechanism (21), the upper end of the first lifting mechanism (21) is connected to a first lifting seat (22), a drilling motor (23) is arranged on the first lifting seat (22), and the drilling motor (23) is detachably connected to a vertical drill bit (24).

7. The drilling device according to claim 5, characterized in that: The tapping assembly comprises a second lifting mechanism (25), the lower end of the second lifting mechanism (25) is connected to a second lifting seat (26), a tapping motor (27) is arranged on the second lifting seat (26), and the tapping motor (27) is detachably connected to a vertical tap (28).

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