In-mold reverse tapping device

Abstract

The utility model discloses an in-mold reverse tapping device which comprises a device body, a moving plate and an adjusting mechanism, a threaded rod corresponding to the adjusting mechanism is rotatably installed in the device body, a fixing frame is fixedly installed on the inner wall of the top of the device body, and a bevel gear set connected with the threaded rod is rotatably installed in the fixing frame. And a connecting rod is fixedly mounted at the other end of the bevel gear set. Through the arrangement of the bevel gear set, the long rod, the connecting block and the brush plate, when the tapping device is started, the threaded rod can drive the adjusting mechanism to enable the movable plate to do vertical reciprocating motion, after a reinforcing plate is punched, the track can drive a hole of the reinforcing plate to the position where the long rod is located, and at the moment, the long rod can drive the brush plate to enter the punched hole; and under linkage of the bevel gear set, the brush plate can rotate in the cavity, so that scrap iron in the hole wall is cleaned, friction between subsequent tapping and the scrap iron is effectively prevented, and the service life of tapping is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of in-mold reverse tapping devices, in particular to an in-mold reverse tapping device. Background Art

[0002] In-mold tapping machines, also known as in-mold threading machines, are used in conjunction with progressive dies to rapidly process screw holes during the stamping process of hardware parts. Currently the most advanced screw hole forming process for hardware parts, this machine breaks away from traditional processing methods by integrating traditional stamping and tapping techniques to form the holes directly within the mold. Because in-mold tapping effectively avoids secondary operations (stamping followed by tapping), production efficiency is greatly improved, making it particularly suitable for use in progressive, progressive, and precision dies.

[0003] Currently available tapping devices each have different advantages. For example, Chinese patent publication number CN215356562U discloses a tapping device comprising a base plate, a support plate symmetrically fixedly connected to the top of the base plate, a top plate fixedly connected to the top of the support plate, two support plates rotatably connected to the sides adjacent to each other by double-threaded rods, two double-threaded rods fixedly connected to each other on the sides adjacent to each other, a lifting device movably provided on one side of the double-threaded rods, and a movable plate fixedly connected to the bottom of each lifting device. This utility model has a novel design and is simple to operate. It not only facilitates punching and tapping holes in a reinforcement plate, but also allows for micro-adjustment and centering during tapping, resulting in better tapping results and reducing the damage rate of the tap.

[0004] However, the above-mentioned tapping device still has certain shortcomings. When the punching die punches holes in the reinforcement plate, iron chips will be left in the hole wall. These tiny iron chips will continue to rub against the tapping surface like fine sand grains during the subsequent tapping process, which not only increases the resistance of tapping, but also gradually wears the cutting edge and threaded part of the tap. As time goes by, this continuous wear will significantly reduce the working efficiency and processing accuracy of the tapping, and may even cause the tapping to break, greatly shortening the service life of the tapping. Utility Model Content

[0005] Based on this, the purpose of the present invention is to provide an in-mold reverse tapping device to solve the technical problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an in-mold reverse tapping device, comprising a device body, a movable plate and an adjusting mechanism, a threaded rod corresponding to the adjusting mechanism is rotatably installed in the device body, and a fixed frame is fixedly installed on the top inner wall of the device body, a bevel gear set connected to the threaded rod is rotatably installed in the fixed frame, and a connecting rod is fixedly installed on the other end of the bevel gear set, and a connecting block rotatably installed with the bottom of the fixed frame is fixedly installed on the end of the connecting rod, a long rod is slidably installed on the bottom of the connecting block, and a connecting disk rotatably connected to the movable plate is installed on the outer wall of the long rod, and a brush plate for cleaning the workpiece is fixedly installed on the end of the long rod.

[0007] By adopting the above technical solution, when the tapping device is started, the threaded rod will drive the adjusting mechanism to make the movable plate perform vertical reciprocating motion. When the reinforcing plate completes punching, the track will drive the hole of the reinforcing plate to the position of the long rod. At this time, the long rod will drive the brush plate into the punched hole, and under the linkage of the bevel gear set, the brush plate will rotate in the hole, thereby cleaning the iron chips in the hole wall, effectively preventing subsequent tapping and iron chips friction, and improving the service life of the tapping.

[0008] Furthermore, the bevel gear set includes a driving gear and a driven gear, the driving gear is mounted on the threaded rod, the driven gear is fixedly connected to the connecting rod, and the driving gear and the driven gear are meshed and connected.

[0009] By adopting the above technical solution, when the threaded rod starts to rotate, the connecting rod is driven to start rotating.

[0010] Furthermore, a sliding groove corresponding to the long rod is provided at the bottom of the connecting block, and the sliding groove and the long rod are both designed to be corresponding rectangles.

[0011] By adopting the above technical solution, the long rod can be driven by the movable plate to move in the vertical direction, and the design of the end portion enables the long rod to be driven by the connecting block to rotate.

[0012] Furthermore, the depth of the sliding groove is greater than the length of the long rod sliding downward.

[0013] By adopting the above technical solution, the long rod can slide better.

[0014] Furthermore, balls are installed at the bottom of the connecting plate and are in contact with the inner wall of the movable plate, and multiple groups of balls are installed at equal angles in the connecting plate.

[0015] By adopting the above technical solution, the rotation of the long rod is further made smoother.

[0016] Furthermore, the brush plate is designed to be a round cake, and the maximum inner diameter of the brush plate corresponds to the inner diameter of the hole punched by the punching die in the device body.

[0017] By adopting the above technical solution, the brush plate can enter the cavity for cleaning.

[0018] Furthermore, the long rod passes through the movable plate, and the connecting plate fixedly mounted on the outer wall of the long rod is rotatably mounted inside the movable plate.

[0019] By adopting the above technical solution, the connecting plate has a limiting effect on the long rod, and at the same time enables the long rod to be driven when the movable plate moves vertically.

[0020] In summary, the present invention has the following beneficial effects:

[0021] The utility model is provided with a bevel gear set, a long rod, a connecting block and a brush plate. When the tapping device is started, the threaded rod will drive the adjusting mechanism to make the movable plate perform vertical reciprocating motion. When the reinforcing plate completes punching, the track will drive the hole of the reinforcing plate to the position of the long rod. At this time, the long rod will drive the brush plate into the punched hole, and under the linkage of the bevel gear set, the brush plate will rotate in the hole, thereby cleaning the iron chips in the hole wall, effectively preventing subsequent tapping and iron chips from rubbing, and improving the service life of the tapping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view of the utility model;

[0023] Figure 2 For this utility model Figure 1 A magnified view of point A;

[0024] Figure 3 For this utility model Figure 1 Enlarged view of point B;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the long rod of the utility model.

[0026] In the figure: 1. Device body; 2. Threaded rod; 201. Bevel gear set; 3. Moving plate; 4. Adjusting mechanism; 5. Fixed frame; 6. Connecting rod; 7. Connecting block; 701. Slide groove; 8. Long rod; 801. Connecting plate; 802. Ball bearing; 803. Brush plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] The following describes an embodiment of the present invention based on its overall structure.

[0029] An in-mold reverse tapping device, such as Figure 1 - Figure 4 As shown, it includes a device body 1, a movable plate 3 and an adjusting mechanism 4, a threaded rod 2 corresponding to the adjusting mechanism 4 is rotatably installed in the device body 1, and a fixed frame 5 is fixedly installed on the inner wall of the top of the device body 1, and the fixed frame 5 is designed as a rectangular frame with a hollow interior, and a bevel gear set 201 connected to the threaded rod 2 is rotatably installed in the fixed frame 5, and the threaded rod 2 drives the bevel gear set 201 for transmission, and a connecting rod 6 is fixedly installed on the other end of the bevel gear set 201, and a connecting block 7 rotatably installed on the end of the connecting rod 6 is fixedly installed, so that the threaded rod 2 drives the connecting block 7 to rotate through the bevel gear set 201, and a long rod 8 is slidably installed on the bottom of the connecting block 7, and a connecting disk 801 rotatably connected to the movable plate 3 is installed on the outer wall of the long rod 8, which has the effect of limiting the long rod 8, and a brush plate 803 for cleaning the workpiece is fixedly installed on the end of the long rod 8.

[0030] See also Figure 2 The bevel gear set 201 includes a driving gear and a driven gear. The driving gear is mounted on the threaded rod 2, and the driven gear is fixedly connected to the connecting rod 6. The driving gear and the driven gear are meshed and connected, so that when the threaded rod 2 starts to rotate, the connecting rod 6 is driven to start rotating.

[0031] See also Figure 2 and Figure 4 A sliding groove 701 corresponding to the long rod 8 is provided at the bottom of the connecting block 7, and the sliding groove 701 and the long rod 8 are both designed in corresponding rectangles, so that the long rod 8 can be driven by the movable plate 3 to move in the vertical direction. At the same time, the design of the end portion enables the long rod 8 to be driven by the connecting block 7 to rotate.

[0032] See also Figure 2 The depth of the slide groove 701 is greater than the length of the long rod 8 sliding downward, which further enables the long rod 8 to slide better.

[0033] See also Figure 3 and Figure 4 The bottom of the connecting plate 801 is equipped with a ball bearing 802 that is in contact with the inner wall of the movable plate 3, and multiple groups of ball bearings 802 are installed at equal angles in the connecting plate 801, which further makes the rotation of the long rod 8 smoother.

[0034] See also Figure 4 The brush plate 803 is designed to be a round cake, and the maximum inner diameter of the brush plate 803 corresponds to the inner diameter of the hole punched by the punching die in the device body 1, so that the brush plate 803 can enter the hole for cleaning.

[0035] See also Figure 1 and Figure 3The long rod 8 passes through the movable plate 3, and the connecting plate 801 fixedly installed on the outer wall of the long rod 8 is rotatably installed inside the movable plate 3. The connecting plate 801 limits the long rod 8 and enables the movable plate 3 to drive the long rod 8 when it moves vertically.

[0036] The working principle of the present utility model is as follows: the tapping device is started, and a threaded rod 2 is installed in the rotation of the device main body 1, and a fixed frame 5 is fixedly installed at the bottom of the device main body 1. The threaded rod 2 starts to rotate and drives the adjusting mechanism 4 to make the movable plate 3 move downward. A bevel gear set 201 is sleeved on the middle part of the threaded rod 2, and a connecting block 7 is installed in rotation at the bottom end of the fixed frame 5, and the connecting rod 6 fixedly installed with the connecting block 7 is fixedly connected to the bevel gear set 201 at the same time. At this time, the bevel gear set 201 starts to drive the connecting block 7 to rotate, and a long rod 8 is installed in a sliding groove 701 provided at the bottom of the connecting block 7, and a connecting disk 801 fixedly installed on the outer wall of the long rod 8 is rotated and installed in the inner of the movable plate 3. At this time, the brush plate 803 will be driven by the long rod 8 to rotate counterclockwise to clean the inner wall of the hole for the second time, effectively cleaning the iron filings in the hole wall. This reciprocating motion effectively prevents the friction between subsequent tapping and iron filings, thereby improving the service life of the tapping.

[0037] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An in-mold reverse tapping device, comprising a device body (1), a movable plate (3) and an adjustment mechanism (4), characterized in that: A threaded rod (2) corresponding to the adjustment mechanism (4) is rotatably mounted in the device body (1), and a fixed frame (5) is fixedly mounted on the inner wall of the top of the device body (1). A bevel gear set (201) connected to the threaded rod (2) is rotatably mounted in the fixed frame (5), and a connecting rod (6) is fixedly mounted on the other end of the bevel gear set (201), and a connecting block (7) rotatably mounted to the bottom of the fixed frame (5) is fixedly mounted on the end of the connecting rod (6). A long rod (8) is slidably mounted on the bottom of the connecting block (7), and a connecting disk (801) rotatably connected to the movable plate (3) is mounted on the outer wall of the long rod (8). A brush plate (803) for cleaning a workpiece is fixedly mounted on the end of the long rod (8).

2. The in-mold reverse tapping device according to claim 1, characterized in that: The bevel gear set (201) comprises a driving gear and a driven gear, the driving gear is mounted on the threaded rod (2), the driven gear is fixedly connected to the connecting rod (6), and the driving gear and the driven gear are meshed and connected.

3. The in-mold reverse tapping device according to claim 1, characterized in that: A sliding groove (701) corresponding to the long rod (8) is provided at the bottom of the connecting block (7), and the sliding groove (701) and the long rod (8) are both designed to be corresponding rectangles.

4. The in-mold reverse tapping device according to claim 3, characterized in that: The depth of the sliding groove (701) is greater than the length of the long rod (8) sliding downward.

5. The in-mold reverse tapping device according to claim 1, characterized in that: The bottom of the connecting plate (801) is provided with balls (802) that are in contact with the inner wall of the movable plate (3), and a plurality of groups of balls (802) are provided at equal angles in the connecting plate (801).

6. The in-mold reverse tapping device according to claim 1, characterized in that: The brush plate (803) is designed to be circular, and the maximum inner diameter of the brush plate (803) corresponds to the inner diameter of the hole punched by the punching die in the device body (1).

7. The in-mold reverse tapping device according to claim 1, characterized in that: The long rod (8) passes through the movable plate (3), and the connecting plate (801) fixedly mounted on the outer wall of the long rod (8) is rotatably mounted inside the movable plate (3).

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