High-stability forming cutter fixing structure

Abstract

The utility model relates to the technical field of forming cutter fixing frames, in particular to a high-stability forming cutter fixing structure which overcomes the defects of forming cutter fixing frames in the prior art and comprises a cutter body, a cutter handle is fixedly connected to one side of the cutter body, a connecting rod is fixedly connected to one end of the cutter handle, and clamping grooves are formed in the two sides of the surface of the connecting rod. A fixing plate is arranged on one side of the connecting rod, a crown gear is rotatably connected to the outer ring of the fixing plate, a pair of rotating rods is rotatably connected to the interior of the fixing plate, first gears are fixedly connected to one sides of the rotating rods, a rack plate is slidably connected to the surface of one side of the fixing plate, and the rotating directions of the two first gears are opposite and matched with the displacement direction of the rack plate; the rack plate is connected with the first gear in a meshed mode, the shape of one side of the rack plate is matched with the size of the position of a clamping groove formed in the surface of the connecting rod, and the fixing device has the advantages of being high in practicability, stable in structure and good in fixing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of forming knife fixing frames, in particular to a high-stability forming knife fixing structure. Background Art

[0002] Forming tools are important devices in industrial processing. There are many types of forming tools, such as forming milling cutters. Milling cutters whose cutting edge profile is designed according to the profile of the workpiece are called forming milling cutters. Like forming turning tools, they can ensure the dimensional accuracy, shape consistency and high productivity of the workpiece being processed. Forming milling cutters are widely used in production, especially in turbine blade processing. Forming milling cutters can be divided into two types according to the form of their tooth backs: pointed tooth forming milling cutters and shovel tooth forming milling cutters. Traditional forming cutters are usually fixed directly on the equipment when in use. Although they can ensure a certain degree of stability, they are also prone to damage the cutter and it is also troublesome to replace the cutter.

[0003] In the existing patent publication number CN215845943U, a high-strength carbide forming tool fixing and connecting mechanism is disclosed, including a mounting seat and a locking assembly; the end face of the mounting seat is provided with a receiving groove for the rear end of the forming tool body to be embedded, a square connecting block is fixed to the rear end of the forming tool body, and a connecting groove for accommodating the connecting block is provided on the inner bottom surface of the receiving groove; the locking assembly includes two symmetrically distributed L-shaped locking pieces and a bidirectional threaded column. This fixing structure can realize the installation and locking of the forming tool body by operating the bidirectional threaded column using the L-shaped locking piece, but the inside of the tool cannot be plugged in, and the fixing effect is not very good, which needs some improvements.

[0004] Therefore, it is necessary to design a high-stability forming knife fixing structure with strong practicality, stable structure and good fixing effect. Utility Model Content

[0005] The purpose of the utility model is to provide a high-stability forming knife fixing structure to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-stability forming knife fixing structure, comprising a knife body, one side of the knife body is fixedly connected to a knife handle, one end of the knife handle is fixedly connected to a connecting rod, two sides of the connecting rod surface are provided with card slots, one side of the connecting rod is provided with a fixing plate, the outer ring of the fixing plate is rotatably connected to a crown gear, the inside of the fixing plate is rotatably connected to a pair of rotating rods, one side of the rotating rod is fixedly connected to a gear 1, and the surface of one side of the fixing plate is slidably connected to a rack plate, and the two gears 1 rotate in opposite directions and are connected to the rack The plate is adapted in displacement direction, the rack plate is meshed with gear one, the shape of one side of the rack plate is adapted to the size of the slot position set on the surface of the connecting rod, the other side of the rotating rod is fixedly connected with a worm gear, two pairs of fixing seats are fixedly connected to the surface of the fixing plate, a worm is rotatably connected inside the fixing seat, the worm is meshed with the worm gear, one end of the worm gear is fixedly connected with gear two, the gear two is meshed with the crown gear, a locking screw is threadedly connected inside the fixing plate, and the nut area of ​​the locking screw covers the surface of one side of the fixing plate and the crown gear.

[0007] According to the above technical solution, outer plate 1 and outer plate 2 are fixedly connected to both sides of the fixed plate respectively.

[0008] According to the above technical solution, a groove is provided on the surface of the handle.

[0009] According to the above technical solution, a protective cover is fixedly connected to the surface of the handle.

[0010] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0011] (1) By providing a worm gear and a gear rack assembly, the crown gear is rotated, the crown gear is meshed with two gears 2, and the gear 2 is driven to rotate, and the worm fixedly connected to one side of the gear 2 follows the rotation, and the worm is connected to the internal rotation of the fixed seat, and the worm drives the worm gear meshed on one side to rotate. When the worm gear rotates, the internal fixed rotating rod follows the rotation, and the gear 1 fixed on the surface of the rotating rod follows the rotation, and the gear 1 drives the meshed rack plate on one side to slide. The rotation direction of the gear 1 is determined by the rotation direction of the worm gear. This fixed structure is set so that the rotation direction of the two gears 1 is adapted to the relative displacement of the rack plate, so that the two rack plates can be inserted into the grooves set on the surface of the connecting rod at the same time. At this time, the locking screw is rotated, and the surface of the nut is used to simultaneously press and contact the fixing plate and the surface of one side of the crown gear for fixing. This fixed structure completes the plug-in fixation of the connecting rod fixed to one end of the tool handle on both sides by rotating the crown gear. The operation is simple, the fixing method is more stable, and the structure is stable.

[0012] (2) By providing outer plate 1 and outer plate 2, outer plate 1 is used to assist in fixing the tool handle to reduce the pressure between the rack plate and the slot, and outer plate 2 is used to protect the internal worm wheel and worm to avoid damage.

[0013] (3) A protective cover is provided to protect the staff from accidentally cutting their hands with the knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the gear rack assembly of the utility model;

[0016] Figure 3 It is a schematic diagram of the worm gear assembly of the utility model;

[0017] In the figure: 1. knife body; 2. knife handle; 3. protective cover; 4. groove; 5. outer plate one; 6. outer plate two; 7. crown gear; 8. fixed plate; 9. connecting rod; 10. locking screw; 11. slot; 12. rack plate; 13. gear one; 14. rotating rod; 15. worm gear; 16. gear two; 17. fixed seat; 18. worm. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in 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 in 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.

[0019] See also Figure 1-3 The utility model provides a technical solution: a high-stability forming knife fixing structure, including a knife body 1, a knife handle 2 is fixedly connected to one side of the knife body 1, a connecting rod 9 is fixedly connected to one end of the knife handle 2, a card slot 11 is arranged on both sides of the surface of the connecting rod 9, a fixing plate 8 is arranged on one side of the connecting rod 9, the outer ring of the fixing plate 8 is rotatably connected to the crown gear 7, a pair of rotating rods 14 are rotatably connected inside the fixing plate 8, a gear 13 is fixedly connected to one side of the rotating rod 14, a rack plate 12 is slidably connected to the surface of one side of the fixing plate 8, the rotation direction of the two gears 13 is adapted to the displacement direction of the rack plate 12, and the rack plate 12 is meshed with gear one 13, the shape of one side of the rack plate 12 is adapted to the position and size of the slot 11 set on the surface of the connecting rod 9, and a worm gear 15 is fixedly connected to the other side of the rotating rod 14. Two pairs of fixing seats 17 are fixedly connected to the surface of the fixing plate 8, and a worm 18 is rotatably connected inside the fixing seat 17. The worm 18 is meshed with the worm gear 15, and one end of the worm gear 15 is fixedly connected to gear two 16, which is meshed with the crown gear 7. A locking screw 10 is threadedly connected inside the fixing plate 8, and the nut area of ​​the locking screw 10 covers the surface of one side of the fixing plate 8 and the crown gear 7.

[0020] Specifically, the connecting rod 9 is pressed against the fixed plate 8. At this time, the connecting rod 9 does not conflict with the rack plate 12. The crown gear 7 is rotated, and the crown gear 7 is meshed with the two gears 16. The gear 16 is driven to rotate, and the worm 18 fixedly connected to one side of the gear 16 rotates along with it. The worm 18 is internally connected to the fixed seat 17 for rotation. The worm 18 then drives the meshed worm wheel 15 on one side to rotate. When the worm wheel 15 rotates, the internally fixed rotating rod 14 rotates along with it, and the gear 13 fixed on the surface of the rotating rod 14 rotates along with it. The gear 13 drives the meshed rack plate 12 on one side to slide. The rotation direction of the gear 13 is determined by the rotation direction of the worm gear 15. The setting of this fixed structure is that the rotation direction of the two gears 13 adapts to the relative displacement of the rack plate 12, so that the two rack plates 12 can be inserted into the groove 11 set on the surface of the connecting rod 9 at the same time. At this time, the locking screw 10 is rotated to use the surface of the nut to squeeze and contact the fixing plate 8 and the surface of one side of the crown gear 7 to fix them. This fixing structure completes the plug-in fixation of the connecting rod 9 fixed at one end of the shank 2 on both sides by rotating the crown gear 7. The operation is simple, the fixing method is more stable, and the structure is stable.

[0021] The two sides of the fixed plate 8 are respectively fixedly connected with the outer plate 1 5 and the outer plate 2 6 .

[0022] Specifically, the outer plate 1 5 is used to assist in fixing the tool handle 2 and reduce the pressure on the rack plate 12 and the slot 11 , and the outer plate 2 6 is used to protect the internal worm wheel 15 and the worm 18 to avoid damage.

[0023] A groove 4 is provided on the surface of the handle 2 .

[0024] Specifically, the groove 4 is used to assist the staff in taking the knife handle, which increases convenience.

[0025] A protective cover 3 is fixedly connected to the surface of the knife handle 2 .

[0026] Specifically, the protective cover 3 is used to protect the staff and prevent the hands from being cut by the blade body 1 by mistake.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A high-stability forming knife fixing structure, comprising a knife body (1), characterized in that: One side of the knife body (1) is fixedly connected to a knife handle (2), one end of the knife handle (2) is fixedly connected to a connecting rod (9), two sides of the surface of the connecting rod (9) are provided with card slots (11), one side of the connecting rod (9) is provided with a fixing plate (8), the outer ring of the fixing plate (8) is rotatably connected to a crown gear (7), the inside of the fixing plate (8) is rotatably connected to a pair of rotating rods (14), one side of the rotating rod (14) is fixedly connected to a gear one (13), one side of the fixing plate (8) is slidably connected to a rack plate (12), the rotation direction of the two gears one (13) is adapted to the displacement direction of the rack plate (12), the rack plate (12) is meshingly connected to the gear one (13), and the gears The shape of one side of the strip plate (12) is adapted to the position and size of the slot (11) provided on the surface of the connecting rod (9); the other side of the rotating rod (14) is fixedly connected to a worm gear (15); the surface of the fixing plate (8) is fixedly connected to two pairs of fixing seats (17); a worm (18) is rotatably connected inside the fixing seat (17); the worm (18) is meshingly connected with the worm gear (15); one end of the worm gear (15) is fixedly connected to a gear 2 (16); the gear 2 (16) is meshingly connected with the crown gear (7); a locking screw (10) is threadedly connected inside the fixing plate (8); the nut area of ​​the locking screw (10) covers the surface of one side of the fixing plate (8) and the crown gear (7).

2. A high stability forming knife fixing structure according to claim 1, characterized in that: The two sides of the fixed plate (8) are respectively fixedly connected with an outer plate 1 (5) and an outer plate 2 (6).

3. The high stability forming knife fixing structure according to claim 1, characterized in that: A groove (4) is provided on the surface of the knife handle (2).

4. The high stability forming knife fixing structure according to claim 1, characterized in that: A protective sleeve (3) is fixedly connected to the surface of the knife handle (2).

Images