Inner hole tapping device for flange nut production

Abstract

The utility model relates to the technical field of tapping devices, and provides an inner hole tapping device for flange nut production, which comprises a rack, a machining table is fixedly mounted at the top end of the rack, and a limiting mechanism is mounted on the machining table; when the device is used, a worker rotates a rotating handle to drive a limiting mechanism to operate, so that a flange nut can be clamped and fixed from three faces, then when the flange nut is clamped, under the action of second springs at the corresponding positions, three sets of limiting blocks can extrude the flange edge of the flange nut, and therefore the flange edge of the flange nut can be extruded. The clamping stability of the device to the flange nut is further enhanced, then after clamping and fixing are completed, the arranged worm and gear have the self-locking property, the clamping stability is guaranteed, in addition, through arrangement of a limiting pin and a limiting hole, the stability of the fixed flange nut is further enhanced, and the clamping stability of the flange nut is further improved. Therefore, the error rate after the flange nut is processed is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tapping devices, and in particular to an inner hole tapping device for producing flange nuts. Background Art

[0002] Nuts are nuts, parts that are screwed together with bolts or screws for fastening. They are a kind of components that must be used in all manufacturing machinery. According to different materials, they are divided into several types, such as carbon steel, stainless steel, non-ferrous metals (such as copper), etc. Among them, flange nuts, also known as washer nuts, flower nut nuts, hexagonal flange nuts, flange nuts, etc., are mostly used in pipe connections or workpieces that need to increase the contact surface of the nut.

[0003] Many existing flange nuts need to be tapped inside the aperture of the flange nut after the punching process. However, many existing tapping devices use simple clamps to clamp the alignment edges of the flange nut and then perform tapping. This makes it difficult to ensure the stability of the flange nut during processing, and the error rate is high, which affects the tapping efficiency. Utility Model Content

[0004] The utility model provides an inner hole tapping device for flange nut production, which solves the above problems.

[0005] The technical solution of the utility model is as follows: an internal hole tapping device for flange nut production, comprising a frame, a processing table fixedly installed on the top of the frame, a limiting mechanism installed on the processing table, the limiting mechanism comprising a first rotating shaft, a triangular connecting plate, a connecting rod, a first slide groove and a clamping plate, a first rotating shaft is vertically rotatably installed at the middle position inside the processing table, a triangular connecting plate is fixedly installed at the middle position of the first rotating shaft, connecting rods are rotatably installed at the top angle position of the upper end of the triangular connecting plate, three groups of first slide grooves are opened in a circular array on the top of the processing table, a clamping plate is slidably installed inside each group of the first slide grooves, and one end of each group of the connecting rods away from the triangular connecting plate is rotatably connected to the bottom end of the clamping plate at the corresponding position.

[0006] Preferably, the limiting mechanism also includes a second rotating shaft, a worm, a worm wheel, a turntable and a rotating handle. The second rotating shaft is longitudinally rotatably installed inside the processing table, the worm is fixedly installed on the second rotating shaft, a worm wheel is fixedly installed on the first rotating shaft at a position corresponding to the worm, the worm wheel is meshingly connected with the worm, the front end of the second rotating shaft extends to the outside of the processing table and is fixedly installed with a turntable, and a rotating handle is fixedly installed at the edge of the outer wall of the front end of the turntable.

[0007] Preferably, a first sleeve is fixedly installed at the middle position of the outer wall of the rear end of the turntable, a first spring is fixedly installed at the bottom end of the first sleeve, a second sleeve is fixedly installed at the other end of the first spring, the second sleeve is slidably connected to the second rotating shaft, a second sliding groove is longitudinally opened on the outer wall of the first sleeve, a pull rod is slidably installed inside the second sliding groove, the right end of the pull rod is fixedly connected to the outer wall of the second sleeve, a limit pin is fixedly installed on the outer wall of the rear end of the second sleeve, a fixing plate is fixedly installed on the outer wall of the front end of the processing table, and a plurality of groups of limit holes are opened in a circular array on the fixing plate at positions corresponding to the limit pins.

[0008] Preferably, mounting blocks are fixedly installed on one side of the three groups of clamps close to each other, a spring groove is opened at the bottom of each group of mounting blocks, a second spring is fixedly installed on the top of each group of spring grooves, a limiting block is fixedly installed on the bottom of each group of second springs, and each group of limiting blocks is slidably connected to the spring grooves at corresponding positions.

[0009] Preferably, a support frame is fixedly installed on the top rear end of the frame, a cylinder is fixedly installed on the top of the support frame, a telescopic rod is fixedly connected to the output end of the cylinder, a mounting frame is fixedly installed on the bottom end of the telescopic rod, a motor is fixedly installed on the bottom end of the mounting frame, and a tap is fixedly installed on the output end of the motor.

[0010] Preferably, rubber pads are fixedly installed at the four corners of the bottom end of the frame.

[0011] The working principle and beneficial effects of the utility model are:

[0012] When using this device, the staff drives the limiting mechanism to operate by turning the handle, so that the flange nut can be clamped and fixed from three sides. Then, when the flange nut is clamped, the three sets of limiting blocks can squeeze the flange edge of the flange nut under the action of the second spring at the corresponding position, thereby further enhancing the clamping stability of the flange nut by this device. Then, after the clamping and fixing, the self-locking property of the worm gear ensures the clamping stability. In addition, the setting of the limiting pin and the limiting hole further enhances the stability of the flange nut after fixing, thereby reducing the error rate of the flange nut after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0017] Figure 4 For this utility model Figure 3 The enlarged structural diagram at B in the middle;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the structural installation block of the utility model.

[0019] In the figure: 1. frame; 2. processing table; 3. first rotating shaft; 4. triangular connecting plate; 5. connecting rod; 6. first slide groove; 7. clamping plate; 8. second rotating shaft; 9. worm; 10. worm wheel; 11. turntable; 12. turning handle; 13. first sleeve; 14. first spring; 15. second sleeve; 16. second slide groove; 17. pull rod; 18. limit pin; 19. fixing plate; 1901, limit hole; 20. mounting block; 21. spring groove; 22. second spring; 23. limit block; 24. support frame; 25. cylinder; 26. telescopic rod; 27. mounting frame; 28. motor; 29. ​​tap; 30. rubber pad. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] like Figure 1~Figure 5As shown, the present embodiment proposes an internal hole tapping device for flange nut production, including a frame 1, a processing table 2 is fixedly installed on the top of the frame 1, a limiting mechanism is installed on the processing table 2, the limiting mechanism includes a first rotating shaft 3, a triangular connecting plate 4, a connecting rod 5, a first slide groove 6 and a clamping plate 7, a first rotating shaft 3 is vertically rotatably installed at the middle position inside the processing table 2, a triangular connecting plate 4 is fixedly installed at the middle position of the first rotating shaft 3, and connecting rods 5 are rotatably installed at the top angle position of the upper end of the triangular connecting plate 4, three groups of first slide grooves 6 are opened in a circular array on the top of the processing table 2, and a clamping plate 7 is slidably installed inside each group of first slide grooves 6, and one end of each group of connecting rods 5 away from the triangular connecting plate 4 is rotatably connected to the bottom end of the clamping plate 7 at the corresponding position, and the limiting mechanism also includes a second rotating shaft 8, a worm 9, A worm wheel 10, a turntable 11 and a rotating handle 12, a second rotating shaft 8 is longitudinally rotatably installed inside the processing table 2, a worm 9 is fixedly installed on the second rotating shaft 8, a worm wheel 10 is fixedly installed at a position corresponding to the worm 9 on the first rotating shaft 3, the worm wheel 10 is meshingly connected with the worm 9, the front end of the second rotating shaft 8 extends to the outside of the processing table 2, and a turntable 11 is fixedly installed, a rotating handle 12 is fixedly installed at the edge of the outer wall of the front end of the turntable 11, and a mounting block 20 is fixedly installed on one side of the three groups of splints 7 close to each other, a spring groove 21 is opened at the bottom end of each group of mounting blocks 20, a second spring 22 is fixedly installed at the top end of each group of spring grooves 21, a limit block 23 is fixedly installed at the bottom end of each group of second springs 22, and each group of limit blocks 23 is slidably connected to the spring groove 21 at the corresponding position.

[0023] In this embodiment, when using this device, the staff drives the second rotating shaft 8 to rotate by rotating the turntable 11. Because the worm 9 fixedly mounted on the second rotating shaft 8 is meshed and connected with the worm wheel 10 fixedly mounted on the first rotating shaft 3, the first rotating shaft 3 is synchronously driven to rotate, so that the triangular connecting plate 4 can be driven to rotate, thereby driving the three groups of clamping plates 7 to slide inside the first sliding groove 6 at the corresponding position, so that the flange nut can be clamped and fixed from three sides, and then the three groups of limit blocks 23 set at the corresponding position can pressurize the flange edge of the flange nut under the action of the second spring 22 at the corresponding position, thereby further enhancing the clamping stability of the flange nut of the present device. In addition, the self-locking property of the worm wheel 10 and worm 9 further enhances the clamping stability of the flange nut of the present device.

[0024] Example 2

[0025] like Figure 1~Figure 5As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a first sleeve 13 is fixedly installed at the middle position of the outer wall of the rear end of the turntable 11, a first spring 14 is fixedly installed at the bottom end of the first sleeve 13, a second sleeve 15 is fixedly installed at the other end of the first spring 14, the second sleeve 15 is slidably connected to the second rotating shaft 8, a second slide groove 16 is longitudinally opened on the outer wall of the first sleeve 13, a pull rod 17 is slidably installed inside the second slide groove 16, the right end of the pull rod 17 is fixedly connected to the outer wall of the second sleeve 15, and a limit pin is fixedly installed on the outer wall of the rear end of the second sleeve 15 18, a fixing plate 19 is fixedly installed on the outer wall of the front end of the processing table 2, and a plurality of groups of limiting holes 1901 are opened in a circular array at the positions corresponding to the limiting pins 18 on the fixing plate 19, a supporting frame 24 is fixedly installed on the top rear end of the frame 1, a cylinder 25 is fixedly installed on the top of the supporting frame 24, a telescopic rod 26 is fixedly connected to the output end of the cylinder 25, a mounting frame 27 is fixedly installed on the bottom end of the telescopic rod 26, a motor 28 is fixedly installed on the bottom end of the mounting frame 27, a tap 29 is fixedly installed on the output end of the motor 28, and rubber pads 30 are fixedly installed at the four corners of the bottom end of the frame 1.

[0026] In this embodiment, after the flange nut is clamped and fixed, the second sleeve 15, under the action of the first spring 14, drives the limit pin 18 to engage with the limit hole 1901 opened at the corresponding position, thereby avoiding the situation where the turntable 11 is accidentally touched and the flange nut is loosened, thereby further enhancing the stability of the flange nut clamping of the device. Then the staff starts the cylinder 25 to drive the telescopic rod 26 to work, thereby driving the installation frame 27 to move up and down. At the same time, the staff starts the motor 28 to drive the tap 29 to rotate, and taps the fixed flange nut.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An internal hole tapping device for flange nut production, characterized in that: The invention comprises a frame (1), a processing table (2) is fixedly mounted on the top of the frame (1), a limiting mechanism is mounted on the processing table (2), and the limiting mechanism comprises a first rotating shaft (3), a triangular connecting plate (4), a connecting rod (5), a first sliding groove (6) and a clamping plate (7). A first rotating shaft (3) is vertically rotatably mounted at a middle position inside the processing table (2), a triangular connecting plate (4) is fixedly mounted at a middle position of the first rotating shaft (3), and connecting rods (5) are rotatably mounted at the top corner positions of the upper ends of the triangular connecting plates (4). Three groups of first sliding grooves (6) are arranged in a circular array at the top of the processing table (2), and a clamping plate (7) is slidably mounted inside each group of the first sliding grooves (6), and one end of each group of the connecting rods (5) away from the triangular connecting plate (4) is rotatably connected to the bottom end of the clamping plate (7) at a corresponding position.

2. The inner hole tapping device for flange nut production according to claim 1, characterized in that: The limiting mechanism further comprises a second rotating shaft (8), a worm (9), a worm wheel (10), a rotating disk (11) and a rotating handle (12); the second rotating shaft (8) is longitudinally rotatably mounted inside the processing table (2); the worm (9) is fixedly mounted on the second rotating shaft (8); a worm wheel (10) is fixedly mounted on a position corresponding to the worm (9) on the first rotating shaft (3); the worm wheel (10) is meshingly connected with the worm (9); the front end of the second rotating shaft (8) extends to the outside of the processing table (2) and is fixedly mounted with a rotating disk (11); and the rotating handle (12) is fixedly mounted at an edge position of an outer wall of the front end of the rotating disk (11).

3. The inner hole tapping device for flange nut production according to claim 2, characterized in that: A first sleeve (13) is fixedly mounted at the middle position of the rear end outer wall of the turntable (11), a first spring (14) is fixedly mounted at the bottom end of the first sleeve (13), a second sleeve (15) is fixedly mounted at the other end of the first spring (14), the second sleeve (15) is slidably connected to the second rotating shaft (8), a second sliding groove (16) is longitudinally opened on the outer wall of the first sleeve (13), a pull rod (17) is slidably installed inside the second sliding groove (16), the right end of the pull rod (17) is fixedly connected to the outer wall of the second sleeve (15), a limit pin (18) is fixedly mounted on the rear end outer wall of the second sleeve (15), a fixing plate (19) is fixedly mounted on the front end outer wall of the processing table (2), and a plurality of groups of limit holes (1901) are opened in a circular array at positions corresponding to the limit pins (18) on the fixing plate (19).

4. The inner hole tapping device for flange nut production according to claim 1, characterized in that: A mounting block (20) is fixedly mounted on one side of the three groups of clamping plates (7) close to each other, a spring slot (21) is provided at the bottom end of each group of mounting blocks (20), a second spring (22) is fixedly mounted on the top end of each group of spring slots (21), a limiting block (23) is fixedly mounted on the bottom end of each group of second springs (22), and each group of limiting blocks (23) is slidably connected to the spring slot (21) at a corresponding position.

5. The inner hole tapping device for flange nut production according to claim 1, characterized in that: A support frame (24) is fixedly mounted on the rear end of the top of the frame (1); a cylinder (25) is fixedly mounted on the top of the support frame (24); a telescopic rod (26) is fixedly connected to the output end of the cylinder (25); a mounting frame (27) is fixedly mounted on the bottom end of the telescopic rod (26); a motor (28) is fixedly mounted on the bottom end of the mounting frame (27); and a tap (29) is fixedly mounted on the output end of the motor (28).

6. The inner hole tapping device for flange nut production according to claim 1, characterized in that: Rubber pads (30) are fixedly mounted at the four corners of the bottom end of the frame (1).

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