Turning hook forming tool

Abstract

The utility model relates to tooling technical field, concretely relates to neck hook forming tool, including bottom plate, bottom plate upper end surface sets up frame with fixed structure mode, the bottom plate upper end surface of frame one side sets up mould seat with fixed structure mode, the recess A is seted up to mould seat upper end surface, the clamping arm is seted up between mould seat and frame, the clamping arm sets up the clamping groove, through the eye department fixed in the recess A of mould seat of pressure piece, then utilizes the clamping arm of setting up the clamping groove to the hook body side wall is clamped, increased the contact area, reduced the stress concentration, guarantee the forming quality of neck hook, the other side fixed setting of clamping arm away from the clamping groove is provided with the pivot, the pivot is connected with frame with rotating structure mode, the gear is seted up with fixed structure mode to the pivot outside, through the sliding of driving rack drive the gear rotation with it is engaged, and then make the pivot rotation with the gear fixed connection, finally realize the rotation of clamping arm, complete the rotation work of eye department and hook body.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, specifically to a tooling for forming a rotating neck hook. Background Technology

[0002] Neck hooks are common irregular hooks in rigging hardware, mainly used in hoisting, towing and other scenarios, and are characterized by high strength and wear resistance.

[0003] like Figure 5 The image shows the state of the rotating hook before it rotates. During processing, when the blank is in a thermoplastic state, the worker clamps and fixes the hook body using a tooling, then inserts a lever into the eye and uses the lever to rotate the eye, causing the eye to rotate 90 degrees to form the rotating neck structure.

[0004] Because the contact area between the eye and the lever is small, the force on the eye is concentrated, and the above processing method can easily cause damage to the inner edge of the eye, affecting product quality; moreover, the rotation angle is difficult to control and requires multiple adjustments, resulting in low efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a rotating hook forming fixture. The problem it solves is that clamping and fixing the hook body with the fixture and then rotating the eye using a lever can easily cause damage to the inner edge of the eye, affecting product quality. To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: A rotating hook forming fixture, characterized in that it includes: The base plate has a frame fixed to its upper surface. The mold base is fixedly mounted on the upper surface of the bottom plate on one side of the frame, and a groove A is provided on the upper surface of the mold base; Pressure block, which is positioned above the mold base; Telescopic power components used to drive the lifting and lowering of the pressure block; A clamping arm with a slot is provided and is positioned between the frame and the mold base; The rotating shaft is connected to the clamping arm in a fixed structure, and the rotating shaft is connected to the frame in a rotating structure. Gears and racks mesh with each other. The gears are fixedly mounted on the outside of the rotating shaft, while the racks are connected to the frame in a sliding manner.

[0006] Furthermore, the base plate is bolted to a support block, and the support block is bolted to the mold base.

[0007] Furthermore, the telescopic power component is a rotary pressing cylinder. The output shaft of the rotary pressing cylinder is connected to the pressure block by bolts. The rotary pressing cylinder is fixedly mounted on the upper surface of the bottom plate on one side of the mold base.

[0008] Furthermore, a groove B is provided on the lower end face of the pressure block.

[0009] Furthermore, the frame is formed by a first side baffle, a second side baffle, and a top cover plate, and a dovetail groove is provided on the inner side of the first side baffle along the vertical direction; The side of the rack away from the gear is adapted to the shape of the dovetail groove, the rack slides into the dovetail groove, and the rack extends upward through the upper cover plate.

[0010] Furthermore, the frame is fixedly equipped with bearings, which are sleeved on the outside of the rotating shaft; The shaft is connected to the gear via a key. Furthermore, a limit cover is bolted to the end of the rotating shaft away from the clamping arm, and the limit cover fits against the second side baffle on the outside; The inner second side baffle sidewall fits into the clamp arm sidewall.

[0011] Furthermore, a spring is fixedly mounted on the base plate at the bottom of the rack.

[0012] Furthermore, the inner sleeve of the spring is provided with a limiting post, and the lower end face of the limiting post is connected to the upper end face of the base plate.

[0013] The beneficial effects of this utility model are as follows: the eye is fixed in the groove A of the mold base by the pressure block, and then the side wall of the hook body is clamped by the clamping arm with the slot, which increases the contact area, reduces stress concentration, and ensures the molding quality of the eye.

[0014] By driving the rack to slide, the gear meshing with it rotates, which in turn causes the shaft fixedly connected to the gear to rotate, ultimately achieving the rotation of the clamping arm and completing the rotation of the eye and the hook.

[0015] By setting a spring, the rack can be driven to move upward and reset the clamping arm after the rotation is completed, which is convenient for the next operation. A limit post is set in the spring to limit the distance the rack falls. When the rack contacts the limit post, the clamping arm rotates exactly 90 degrees, which reduces the trouble of multiple back-and-forth adjustments and improves processing efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention from one angle; Figure 2 This is a partial cross-sectional view of the main structure of this utility model; Figure 3 This is a schematic diagram of the pressing block structure of this utility model; Figure 4 This is a schematic diagram of the connection structure between the rack and the first side baffle of this utility model; Figure 5 This is a schematic diagram of the front structure of the rotating neck hook of this utility model; Figure 6 This is a schematic diagram of an embodiment of the present utility model; In the picture: 1. Base plate, 2. Support block, 3. Mold base, 4. Clamping arm, 5. Frame, 6. First side baffle, 7. Spring, 8. Bearing, 9. Limiting cover, 10. Top cover plate, 11. Second side baffle, 12. Rack, 13. Gear, 14. Key, 15. Pressure block, 16. Telescopic power component, 17. Groove A, 18. Groove B, 19. Limiting post. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows: The rotating hook forming fixture includes a base plate 1. A frame 5 is fixedly mounted on the upper surface of the base plate 1. A mold base 3 is fixedly mounted on the upper surface of the base plate 1 on one side of the frame 5. A groove A17 is formed on the upper surface of the mold base 3. The groove A17 is consistent with the shape of the eye structure, so that the eye fits better with the side wall of the groove A17 and reduces damage. The base plate 1 is provided with a telescopic power component 16 for driving the pressure block 15 to rise and fall. The pressure block 15 presses the eye into the groove A17. A clamping arm 4 is provided between the mold base 3 and the frame 5. The clamping arm 4 has a slot for placing the hook body and fits the contour of the outer side wall of the hook body. The eye body is fixed in the groove A17 of the mold base 3 by the pressure block 15, and the side wall of the hook body is clamped by the clamping arm 4 with the slot, which increases the contact area, reduces stress concentration, and ensures the forming quality of the rotating hook.

[0018] A rotating shaft is fixedly installed on the side of the clamping arm 4 away from the slot. The rotating shaft is connected to the frame 5 by a rotating structure. A gear 13 is fixedly fitted on the outside of the rotating shaft. The gear 13 meshes with a rack 12, and the rack 12 is connected to the frame 5 by a sliding structure. By driving the rack 12 to slide, the meshing gear 13 rotates, which in turn causes the rotating shaft fixedly connected to the gear 13 to rotate, ultimately realizing the rotation of the clamping arm 4 and completing the rotation of the eye and the hook body.

[0019] It should be noted that the base plate 1 is connected to the support block 2 by bolts. The support block 2 is connected to the mold base 3 by bolts, which increases the height of the mold base 3, provides sufficient space for the hook body to rotate, and facilitates the replacement of the mold base 3 according to the production needs of different models.

[0020] Specifically, the telescopic power component 16 is a rotary pressing cylinder. The output shaft of the rotary pressing cylinder is connected to the pressing block 15 by bolts. The rotary pressing cylinder is fixedly installed on the upper surface of the base plate 1 on one side of the mold base 3. After the neck is turned, the rotary pressing cylinder drives the pressing block 15 to move to one side of the mold base 3, making it convenient for workers to pick up the neck hook.

[0021] It should be noted that the lower end face of the pressure block 15 has a groove B18. When the rotating pressure cylinder drives the pressure block 15 to press down vertically, it fits the eye better and increases the contact area.

[0022] Specifically, the frame 5 is formed by a first side baffle 6, a second side baffle 11, and an upper cover plate 10, creating a box structure to reduce the entry of impurities and contamination of the gears. A dovetail groove is vertically formed on the inner side of the first side baffle 6. The side of the rack 12 furthest from the gear 13 is fitted with the shape of the dovetail groove, allowing for sliding contact between the rack 12 and the dovetail groove. This ensures that the rack 12 can only move up and down, and extends upwards through the upper cover plate 10. This fixture can be placed on the press operating table. The press head presses down on the rack 12, causing the rack 12 to rotate and convert vertical linear motion into axial rotational motion, thus providing torsional force for the necking of the workpiece.

[0023] It should be noted that the frame 5 is fixedly equipped with a bearing 8, which is sleeved on the outside of the rotating shaft to improve the stability and smoothness of rotation. The rotating shaft is connected to the gear 13 through a key 14. To prevent the clamping arm 4 from moving axially, a limit cover 9 is bolted to the end of the rotating shaft away from the clamping arm 4. The limit cover 9 fits against the outer second side baffle 11; the inner side wall of the second side baffle 11 fits against the side wall of the clamping arm 4.

[0024] Based on the above embodiments, in another embodiment, the base plate 1 at the lower part of the rack 12 is provided with a spring 7 in a fixed structure. After the neck rotation processing is completed, the rotary cylinder 15 is released, and the pressure block 15 rotates to an empty position as the rotary pressing cylinder 16 returns, making it convenient to pick up the material. After picking up the material, the spring 7 releases its stored potential energy, pushes the rack 12 to move upward and reset, and drives the clamping arm 4 back to the initial position for processing again.

[0025] In this embodiment, a limiting post 19 is provided inside the spring 7. The lower end face of the limiting post 19 is connected to the upper end face of the base plate 1 in a fixed structure. The limiting post 19 can limit the distance of the rack falling. It can be set so that when the lower end face of the rack 12 contacts the upper end face of the limiting post 19, the clamping arm rotates exactly 90 degrees, reducing the trouble of multiple back-and-forth adjustments and improving processing efficiency.

[0026] The working principle and process of the utility model are as follows: The base plate of this fixture can be mounted on the press operating table. Figure 5The eye of the workpiece is placed in the groove A17, the hook is placed in the slot, and then the rotating pressing cylinder 16 is started to drive the pressing block 15 to press the eye tightly.

[0027] The pressure head presses down on the rack 12, which drives the gear 13 to rotate, converting the vertical linear motion into axial rotational motion, thereby providing torsional force for the necking of the workpiece until the rack 12 contacts the limit post 19, at which point the rack 12 can no longer move down, completing a 90-degree twist.

[0028] After the neck rotation process is completed, the rotating pressing cylinder 16 is released, and the pressing block 15 rotates to an empty position as the rotating pressing cylinder 16 returns, making it easy to remove the material. After removing the material, the spring 7 releases its stored potential energy, pushes the rack 12 to move upward and reset, and drives the clamping arm 4 back to the initial position for another processing.

[0029] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A neck-hook forming fixture, characterized in that, include: The base plate (1) has a frame (5) set on the upper surface of the base plate (1) in a fixed structure manner. The mold base (3) is fixedly set on the upper surface of the bottom plate (1) on one side of the frame (5). The upper surface of the mold base (3) is provided with a groove A (17). Pressure block (15) is set above mold base (3); Telescopic power component (16) for driving the lifting and lowering of the pressure block (15); A clamping arm (4) with a slot is provided, and the clamping arm (4) is located between the frame (5) and the mold base (3); The rotating shaft is connected to the clamping arm (4) in a fixed structure and to the frame (5) in a rotating structure. Gear (13) and rack (12) mesh with each other. Gear (13) is fixedly mounted on the outside of the rotating shaft. Rack (12) is connected to frame (5) in a sliding manner.

2. The rotating hook forming fixture according to claim 1, characterized in that: The base plate (1) is connected to the support block (2) by bolts, and the support block (2) is connected to the mold base (3) by bolts.

3. The rotating hook forming fixture according to claim 1, characterized in that: The telescopic power component (16) is a rotary pressing cylinder. The output shaft of the rotary pressing cylinder is connected to the pressure block (15) by bolts. The rotary pressing cylinder is fixedly installed on the upper end face of the bottom plate (1) on one side of the mold base (3).

4. The rotating hook forming fixture according to claim 3, characterized in that: The lower end face of the pressure block (15) is provided with a groove B (18).

5. The rotating hook forming fixture according to claim 1, characterized in that: The frame (5) is formed by the first side baffle (6), the second side baffle (11) and the top cover plate (10). The first side baffle (6) has a dovetail groove on its inner side along the vertical direction. The side of the rack (12) away from the gear (13) is adapted to the shape of the dovetail groove, the rack (12) slides in the dovetail groove, and the rack (12) extends upward through the upper cover plate (10).

6. The rotating hook forming fixture according to claim 1 or 5, characterized in that: The frame (5) is fixedly equipped with a bearing (8), which is sleeved on the outside of the rotating shaft; The shaft is connected to the gear (13) via a key (14).

7. The rotating hook forming fixture according to claim 5, characterized in that: The end of the rotating shaft away from the clamping arm (4) is connected to a limit cover (9) by bolts, and the limit cover (9) is in contact with the second side baffle (11) on the outside; The inner side of the second side baffle (11) is in contact with the side of the clamp arm (4).

8. The rotating hook forming fixture according to claim 1, characterized in that: A spring (7) is provided on the bottom plate (1) at the bottom of the rack (12) in a fixed structure.

9. The rotating hook forming fixture according to claim 1, characterized in that: The spring (7) is fitted with a limiting post (19), and the lower end face of the limiting post (19) is connected to the upper end face of the base plate (1).

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