A mechanical anti-tilt die device and its use method

Abstract

The present invention discloses a novel mechanical anti-tilt die device and a method for using the same, comprising a flat-nose pliers and a die component, wherein the flat-nose pliers are used to clamp a workpiece, and the die component is used to perform thread processing, the flat-nose pliers include a machine base, a movable clamp head and a fixed clamp head, and the die component includes an outer cylinder and an inner cylinder. When the die device is in use, the die is fixedly connected to the inner cylinder, the inner cylinder is sleeved in the outer cylinder, the outer cylinder is fixedly connected to the fixed clamp head, the fixed clamp head and the movable clamp head clamp the part to be processed, and the outer cylinder is adjusted to ensure that the die and the axis of the part to be processed coincide, and during the tapping process of the die, the die always moves up and down along the axis of the part to be processed under the cooperation of the inner cylinder and the outer cylinder, and will not tilt, thereby ensuring the quality of thread processing.

Description

Technical Field

[0001] The invention relates to the technical field of thread processing equipment, and in particular to a novel mechanical anti-tilt die device and a use method thereof. Background Art

[0002] Threaded parts are one of the most commonly used parts in the industrial field, and thread processing is the most important processing step in the production process of threaded parts. When using a die to manually tap the thread, since the die is not positioned and the bend is guided and positioned by its own cutting edge, the user may cause the thread to be messy due to unbalanced force, crooked die, etc., which seriously affects the thread processing quality. Summary of the invention

[0003] In view of the above-mentioned defects, the present invention provides a mechanical anti-tilting die device and a method for using the same. During processing, the die device is positioned under the action of the inner cylinder and the outer cylinder, the die will not be skewed during the tapping process, and the thread processing quality is good. The specific technical scheme is as follows:

[0004] A mechanical anti-tilt die device, comprising

[0005] A flat-nose pliers, used for clamping a workpiece, comprises a machine base, a fixed pliers head and a movable pliers head, the machine base is provided with at least two parallel guide posts, the fixed pliers head is fixedly provided at the end of the guide posts, the movable pliers head is slidably connected to the guide posts, a screw is connected to the machine base by a thread, the end of the screw is rotatably connected to the movable pliers head, the rotation of the screw drives the movable pliers head to move along the axial direction of the screw, and the axis of the screw is parallel to the axis of the guide posts; a V-shaped groove is provided on the side of the movable pliers head facing the fixed pliers head, a keyway and a fixing hole are provided on the top surface of the fixed pliers head, the keyway is an inverted T-shaped groove, the fixing hole is connected to the keyway, a fixing screw is connected to the fixing hole by a thread, and the end of the fixing screw can be screwed into the keyway;

[0006] A die component, used for threading dies, comprises an outer cylinder and an inner cylinder, wherein the outer cylinder comprises an outer shell, which is a tubular structure with openings at both ends and a cylindrical inner cavity, a positioning key is provided at the bottom of the outer shell corresponding to the keyway, the positioning key cooperates with the keyway and slides along the axis of the keyway, the outer shell slides along the axis of the keyway following the positioning key, and when the outer shell slides, the trajectory of the central axis of its inner cavity coincides with the center line of the V-shaped groove in the horizontal projection; the inner cylinder comprises a base, which comprises two oblate annular structures arranged up and down, the two oblate annular structures are connected by a connecting rod, the top surface of the base is provided with two symmetrical handles for grasping, the bottom surface of the base is provided with a fixing ring, the fixing ring is located at the center of the base, the fixing ring is a circular ring structure, and the side wall of the fixing ring is provided with a through screw hole; the side wall of the base fits the outer shell, and the inner cylinder is sleeved into the outer cylinder.

[0007] As an improvement of the present scheme, the V-shaped groove on the movable pliers head is arranged on the movable jaw, and the movable jaw is movably connected to the movable pliers head. A groove is arranged on the side of the movable pliers head close to the fixed pliers head, and the groove is open on the top surface and the side surface of the movable pliers head. Positioning grooves are symmetrically arranged on both sides of the groove, and the positioning grooves are straight grooves, which are open on the top surface of the movable pliers head. The movable jaw is a plate-like structure, and positioning protrusions are arranged on both sides of the movable jaw corresponding to the positioning grooves. The movable jaw is inserted into the groove of the movable pliers head, and the positioning protrusions cooperate with the positioning grooves to achieve positioning; a horizontal top hole is arranged on the movable pliers head, and the top hole is a through hole, which is open in the groove of the movable pliers head. The end of the screw rod extends into the top hole to contact the movable jaw and push the movable jaw to drive the movable pliers head to move.

[0008] As an improvement of the present solution, it also includes a measuring fork, which includes a measuring rod and a fork. The measuring rod is a rod-shaped structure, and a scale is arranged on the measuring rod. The fork is arranged at the end of the measuring rod. A guide groove is arranged at the bottom of the positioning key, and the guide groove cooperates with the measuring rod. The measuring rod can slide in the guide groove. The fork is a V-shaped structure with an opening angle of 60°. The sliding trajectory of the measuring fork coincides with the center line of the V-shaped groove, and the center line of the fork is combined with the center line of the V-shaped groove.

[0009] As an improvement of this solution, two levels are provided on the top surface of the inner cylinder, and the two levels are respectively arranged along the X direction and the Y direction.

[0010] As an improvement of the present solution, a pull ring is provided at the end of the measuring rod of the measuring fork to facilitate pushing and pulling the measuring fork to move.

[0011] As an improvement of this solution, the V-shaped groove on the movable jaw has an opening angle of 120°.

[0012] As an improvement of this solution, the fixing hole is arranged obliquely.

[0013] The method for using the mechanical anti-tilt die device comprises the following steps:

[0014] a. Install the movable jaw on the movable jaw head, clamp the workpiece to be processed between the movable jaw and the fixed jaw head, and rotate the screw to push the movable jaw head and the fixed jaw head to clamp the workpiece to be processed;

[0015] b. Insert the measuring rod of the measuring fork into the guide groove, loosen the fixing screw, push the positioning key of the outer tube into the key groove, and place the outer tube on the top surface of the fixed clamp head;

[0016] c. Push the fork of the measuring fork to fit the outer wall of the workpiece to be processed, move the outer cylinder, and read the scale of the outer wall of the outer cylinder on the measuring rod of the measuring fork according to the diameter of the workpiece to be processed to ensure that the center axis of the outer cylinder coincides with the axis of the workpiece to be processed. After adjusting the position of the outer cylinder, screw in the fixing screw to fix the outer cylinder with the positioning key of the top column at its end;

[0017] d. Insert the die into the fixing ring of the inner tube, screw it into the screw hole, and push the end of the screw against the outer wall of the die to connect and install the die and the inner tube;

[0018] e. Insert the inner cylinder into the outer cylinder. Grasp the handle to drive the inner cylinder to move up and down and rotate inside the outer cylinder. Observe the level to ensure that the inner cylinder is not tilted. Turn the inner cylinder to tap the threads and complete the die processing.

[0019] Compared with the prior art, the present invention adopts the above technical solution, and has the following technical effects:

[0020] 1. The mechanical anti-tilt die device disclosed in the present invention fixes the die to the inner cylinder, the inner cylinder is sleeved in the outer cylinder, and the outer cylinder is fixedly connected to the fixed clamp head. When in use, the fixed clamp head and the movable clamp head clamp the part to be processed, and the outer cylinder is adjusted to ensure that the die and the axis of the part to be processed coincide. During the tapping process of the die, the die device always moves up and down along the axis of the part to be processed under the cooperation of the inner cylinder and the outer cylinder, and will not tilt, thereby ensuring the quality of thread processing;

[0021] 2. The mechanical anti-tilt die device disclosed in the present invention uses a measuring fork to accurately determine the position of the outer cylinder, and the die position is accurate, ensuring accurate thread processing; a level is also provided on the top of the inner cylinder, and the level can be used to further determine whether the die is skewed;

[0022] 3. The mechanical anti-tilt die device disclosed in the present invention has a simple overall structure, is easy to operate, and is easy to perform thread processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 , a schematic diagram of the structure of the mechanical anti-tilt die device;

[0024] Figure 2 , a schematic diagram of the base structure;

[0025] Figure 3 , a schematic diagram of the structure of the movable clamp;

[0026] Figure 4 , a schematic diagram of the fixed clamp structure;

[0027] Figure 5 , a schematic diagram of the movable jaw structure;

[0028] Figure 6 , a schematic diagram of the structure of the outer cylinder;

[0029] Figure 7 Schematic diagram of the inner cylinder structure Figure 1 ;

[0030] Figure 8 Schematic diagram of the inner cylinder structure Figure 2 ;

[0031] Fig. 9 Schematic diagram of the inner cylinder structure Figure 3 ;

[0032] Fig.10 , a usage status diagram of the measuring fork;

[0033] Fig.11 , a schematic diagram of the measuring fork structure;

[0034] Fig.12 , a schematic diagram of the fixing screw structure;

[0035] Fig.13 , a schematic diagram of the die structure;

[0036] Figure numerals: 1. inner cylinder; 2. outer cylinder; 3. measuring fork; 4. fixing screw; 5. fixed pliers head; 6. movable pliers head; 7. machine base; 8. threaded rod; 9. guide column; 10. outer shell; 11. positioning key; 12. guide groove; 13. fork mouth; 14. measuring rod; 15. spirit level; 16. base; 17. connecting rod; 18. fixing ring; 19. screw hole; 20. keyway; 21. fixing hole; 22. connecting hole; 23. guide hole; 24. top hole; 25. positioning groove; 26. movable hole; 27. mounting hole; 28. movable jaws; 29. ​​positioning protrusion; 30. V-shaped groove; 31. fixing rod; 32. twisting head. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions.

[0038] like Figure 1 The figure shows a mechanical anti-tilt die device, including a flat-nose pliers and a die component, wherein the flat-nose pliers are used to clamp the workpiece, and the die component is used to perform thread processing. The flat-nose pliers include a machine base 7, a fixed pliers head 5 and a movable pliers head 6, two parallel guide posts 9 are arranged on the machine base 7, the fixed pliers head 5 is fixedly arranged at the end of the guide post 9, the movable pliers head 6 is slidably connected to the guide post 9, the machine base 7 is connected to a screw by a thread, the end of the screw is rotatably connected to the movable pliers head 6, the rotation of the screw drives the movable pliers head 6 to move along the axial direction of the screw, and the axis of the screw is parallel to the axis of the guide post 9.

[0039] like Figure 2 The machine base 7 is shown, and the machine base 7 is provided with a mounting hole 27 for mounting the guide column 9, and a movable hole 26 for connecting the screw rod through a thread.

[0040] like Figure 3As shown, a guide hole 23 is provided on the movable pliers 6 corresponding to the guide rod, and the guide hole 23 is sleeved outside the guide rod, and the movable pliers 6 can slide along the guide rod. A groove is provided on the side of the movable pliers 6 close to the fixed pliers 5, and the groove is open on the top surface and the side of the movable pliers 6. Positioning grooves 25 are symmetrically provided on both sides of the groove. The positioning grooves 25 are straight grooves, and the straight grooves are open on the top surface of the movable pliers 6. A horizontal top hole 24 is provided on the movable pliers 6, and the top hole 24 is a through hole, and the screw can pass through the top hole 24.

[0041] like Figure 4 The top surface of the fixed pliers head 5 shown is provided with a keyway 20 and a fixing hole 21. The keyway 20 is an inverted T-shaped slot. The fixing hole 21 is connected to the keyway 20. A fixing screw 4 is threadedly connected to the fixing hole 21. The end of the fixing screw 4 can be screwed into the keyway 20. The fixing hole 21 is inclined.

[0042] like Figure 5 The movable jaw 28 shown is a plate-like structure, and positioning protrusions 29 are provided on both sides of the movable jaw 28 corresponding to the positioning grooves 25. The movable jaw 28 is inserted into the groove of the movable jaw head 6, and the positioning protrusions 29 cooperate with the positioning grooves 25 to achieve positioning. When in use, the end of the screw extends into the top hole 24 of the movable jaw head 6 to contact the movable jaw 28 and push the movable jaw 28 to drive the movable jaw head 6 to move. The V-shaped groove 30 on the movable jaw 28 has an opening angle of 120°.

[0043] The die assembly includes an outer cylinder 2 and an inner cylinder 1. Figure 6 The outer cylinder 2 shown includes an outer shell 10, which is a cylindrical structure with openings at both ends and a cylindrical inner cavity. A positioning key 11 is provided at the bottom of the outer shell 10 corresponding to the key slot 20. The positioning key 11 cooperates with the key slot 20 and slides along the axis of the key slot 20. The outer shell 10 follows the positioning key 11 and slides along the axis of the key slot 20. When the outer shell 10 slides, the horizontal projection of the central axis trajectory of its inner cavity coincides with the center line of the V-shaped groove 30. A guide groove 12 is provided at the bottom of the positioning key 11.

[0044] like Figure 7-9 The inner cylinder 1 shown includes a base 16, which includes two flat circular ring structures arranged up and down, and the two flat circular ring structures are connected by a connecting rod 17. Two symmetrical handles are arranged on the top surface of the base 16, and a fixing ring 18 is arranged on the bottom surface of the base 16. The fixing ring 18 is located at the center of the base 16, and the fixing ring 18 is a circular ring structure. The side wall of the fixing ring 18 is provided with a through screw hole 19; the side wall of the base 16 fits the outer shell 10, and the inner cylinder 1 is inserted into the outer cylinder 2. The inner cylinder 1 is rotated by grasping the handle. Two levels 15 are arranged on the top surface of the inner cylinder 1, and the two levels 15 are arranged along the X direction and the Y direction respectively.

[0045] like Fig.11The measuring fork 3 is shown, and the measuring fork 3 includes a measuring rod 14 and a fork 13. The measuring rod 14 is a rod-shaped structure, and a scale is set on the measuring rod 14. The fork 13 is set at the end of the measuring rod 14. The measuring rod 14 can slide in the guide groove 12, and the fork 13 is a V-shaped structure with an opening angle of 60°. The sliding track of the measuring fork 3 coincides with the center line of the V-shaped groove 30, and the center line of the fork 13 is combined with the center line of the V-shaped groove 30. A pull ring is set at the end of the measuring rod 14 to facilitate the push and pull of the measuring fork 3.

[0046] The method for using the mechanical anti-tilt die device comprises the following steps:

[0047] a. Install the movable jaw 28 on the movable jaw head 6, clamp the workpiece to be processed between the movable jaw 28 and the fixed jaw head 5, and rotate the screw to push the movable jaw head 6 and the fixed jaw head 5 to clamp the workpiece to be processed;

[0048] b. Insert the measuring rod 14 of the measuring fork 3 into the guide groove 12, loosen the fixing screw 4, push the positioning key 11 of the outer tube 2 into the key groove 20, place the outer tube 2 on the top surface of the fixed clamp head 5, and fix the screw 4 as shown in the figure. Fig.12 As shown, the fixing screw 4 includes a fixing rod 31 and a twisting head 32. The fixing rod 31 is a threaded rod 8 that can be screwed into the fixing hole 21, and the twisting head 32 is used for gripping;

[0049] c. Fig.10 As shown, push the fork 13 of the measuring fork 3 to fit the outer wall of the workpiece to be processed, move the outer cylinder 2, and read the position scale of the outer wall of the outer cylinder 2 on the measuring rod 14 of the measuring fork 3 according to the diameter of the workpiece to be processed to ensure that the center axis of the outer cylinder 2 coincides with the axis of the workpiece to be processed. After adjusting the position of the outer cylinder 2, screw in the fixing screw 4 so that the end of the top column positioning key 11 can fix the outer cylinder 2;

[0050] d. Fig.13 The die shown is embedded in the fixing ring 18 of the inner tube 1, and a screw is screwed into the screw hole 19. The end of the screw pushes against the outer wall of the die to realize the connection and installation of the die and the inner tube 1. In order to improve the firmness of the connection between the die and the fixing ring 18, a notch can be provided on the side wall of the die. When installing, the notch is aligned with the screw hole 19 for installation. The end of the screw is embedded in the notch and presses the die, which not only ensures the stable connection between the die and the fixing ring 18, but also further prevents the die and the fixing ring 18 from angular displacement.

[0051] e. Insert the inner cylinder 1 into the outer cylinder 2. Grasp the handle to drive the inner cylinder 1 to move up and down and rotate in the outer cylinder 2. Observe the level 15 to ensure that the inner cylinder 1 is not tilted. Rotate the inner cylinder 1 to tap the threads and complete the die processing.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present invention should be covered within the protection scope of the present invention.

Claims

1. A mechanical anti-tilt die device, characterized in that: include A flat-nose pliers, used for clamping a workpiece, comprises a machine base, a fixed pliers head and a movable pliers head, the machine base is provided with at least two parallel guide posts, the fixed pliers head is fixedly provided at the end of the guide posts, the movable pliers head is slidably connected to the guide posts, a screw is connected to the machine base by a thread, the end of the screw is rotatably connected to the movable pliers head, the rotation of the screw drives the movable pliers head to move along the axial direction of the screw, and the axis of the screw is parallel to the axis of the guide posts; a V-shaped groove is provided on the side of the movable pliers head facing the fixed pliers head, a keyway and a fixing hole are provided on the top surface of the fixed pliers head, the keyway is an inverted T-shaped groove, the fixing hole is connected to the keyway, a fixing screw is connected to the fixing hole by a thread, and the end of the fixing screw can be screwed into the keyway; A die component, used for threading dies, comprises an outer cylinder and an inner cylinder, wherein the outer cylinder comprises an outer shell, the outer shell is a tubular structure with openings at both ends and an inner cavity of a cylindrical structure, a positioning key is provided at the bottom of the outer shell corresponding to the keyway, the positioning key cooperates with the keyway and slides along the axis of the keyway, the outer shell follows the positioning key and slides along the axis of the keyway, when the outer shell slides, the trajectory of the central axis of its inner cavity coincides with the center line of the V-shaped groove in the horizontal projection; the inner cylinder comprises a base, the base comprises two oblate annular structures arranged up and down, the two oblate annular structures are connected by a connecting rod, the top surface of the base is provided with two symmetrical handles for grasping, the bottom surface of the base is provided with a fixing ring, the fixing ring is located at the center of the base, the fixing ring is a circular ring structure, and the side wall of the fixing ring is provided with a through screw hole; the side wall of the base fits the outer shell, and the inner cylinder is sleeved into the outer cylinder; The V-shaped groove on the movable jaw is arranged on the movable jaw, and the movable jaw is movably connected to the movable jaw, and a groove is arranged on the side of the movable jaw close to the fixed jaw, and the groove is open on the top surface and the side surface of the movable jaw, and positioning grooves are symmetrically arranged on both sides of the groove, and the positioning grooves are straight grooves, which are open on the top surface of the movable jaw. The movable jaw is a plate-like structure, and positioning protrusions are arranged on both sides of the movable jaw corresponding to the positioning grooves. The movable jaw is inserted into the groove of the movable jaw, and the positioning protrusion cooperates with the positioning groove to achieve positioning; a horizontal top hole is arranged on the movable jaw, and the top hole is a through hole, which is open in the groove of the movable jaw, and the end of the screw rod extends into the top hole to contact the movable jaw and push the movable jaw to drive the movable jaw to move; It also includes a measuring fork, which includes a measuring rod and a fork, wherein the measuring rod is a rod-shaped structure, a scale is provided on the measuring rod, the fork is provided at the end of the measuring rod, a guide groove is provided at the bottom of the positioning key, the guide groove cooperates with the measuring rod, the measuring rod can slide in the guide groove, the fork is a V-shaped structure with an opening angle of 60°, the sliding track of the measuring fork coincides with the center line of the V-shaped groove, and the center line of the fork is combined with the center line of the V-shaped groove; The top surface of the inner cylinder is provided with two levels, which are arranged along the X direction and the Y direction respectively; A pull ring is provided at the end of the measuring rod of the measuring fork to facilitate pushing and pulling the measuring fork to move.

2. A mechanical anti-tilt die device according to claim 1, characterized in that: The V-shaped groove on the movable jaw has an opening angle of 120°.

3. A mechanical anti-tilt die device according to claim 2, characterized in that: The fixing holes are arranged obliquely.

4. A method for using a mechanical anti-tilt die device, used for the die device according to claim 1, characterized in that: The steps include: a. Install the movable jaw on the movable jaw head, clamp the workpiece to be processed between the movable jaw and the fixed jaw head, and rotate the screw to push the movable jaw head and the fixed jaw head to clamp the workpiece to be processed; b. Insert the measuring rod of the measuring fork into the guide groove, loosen the fixing screw, push the positioning key of the outer tube into the key groove, and place the outer tube on the top surface of the fixed clamp head; c. Push the fork of the measuring fork to fit the outer wall of the workpiece to be processed, move the outer cylinder, and read the scale of the outer wall of the outer cylinder on the measuring rod of the measuring fork according to the diameter of the workpiece to be processed to ensure that the center axis of the outer cylinder coincides with the axis of the workpiece to be processed. After adjusting the position of the outer cylinder, screw in the fixing screw to fix the outer cylinder with the positioning key of the top column at its end; d. Insert the die into the fixing ring of the inner tube, screw it into the screw hole, and push the end of the screw against the outer wall of the die to connect and install the die and the inner tube; e. Insert the inner cylinder into the outer cylinder. Grasp the handle to drive the inner cylinder to move up and down and rotate inside the outer cylinder. Observe the level to ensure that the inner cylinder is not tilted. Turn the inner cylinder to tap the threads and complete the die processing.

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