Forged trailer hook machining fixing device

Abstract

This utility model discloses a fixing device for processing forged trailer hooks, including a support plate. The side wall of the support plate is provided with a first support block for supporting the connecting rod and hook tail of the trailer hook, a second support block for supporting the shank of the trailer hook, and a third support block for supporting the hook tail. It also includes: a first clamping assembly for pressing the connecting rod onto the first support block, the first clamping assembly being connected to the support plate; a second clamping assembly for pressing the shank onto the second support block, the second clamping assembly being connected to the support plate; and a third clamping assembly for pressing the hook tail onto the third support block, the third clamping assembly being connected to the support plate. This utility model can not only clamp and position the trailer hook, but also has the advantage of high positioning accuracy.

Description

Technical Field

[0001] This utility model relates to the field of machining technology after forging of parts, and specifically to a fixing device for machining forged trailer hooks. Background Technology

[0002] The functions of a tow hook are: (1) Towing trailers: Tow hooks are mainly used to tow trailers such as caravans, motorboat trailers, and storage boxes. Tow hooks equipped with power harnesses can also provide and control the power supply to the taillights and braking system of the trailers. (2) Vehicle extrication: Tow hooks installed on the front of the vehicle are usually used to connect to the towing vehicle with a tow rope to extricate the vehicle from trouble, such as when the towed vehicle is stuck in sand or loses power due to breakdown.

[0003] like Figure 1 The forged trailer hook includes a connecting rod 1, a shank 2, a ball head 3, and a hook tail 4. One end of the connecting rod 1 is fixed to one end of the shank 2, and the other end of the shank 2 is fixed to the ball head 3. A first angle is formed between the connecting rod 1 and the shank 2. The other end of the connecting rod 1 is fixed to the hook tail 4, and a second angle is formed between the connecting rod 1 and the hook tail 4. For the forged trailer hook, a first through hole 4a needs to be machined at one end of the hook tail 4, and a first blind hole 4b needs to be machined at the other end of the hook tail 4. The axis of the first through hole 4a is parallel to the hook tail 4, and the first through hole 4a and the first blind hole 4b are connected. The axis of the first through hole 4a is perpendicular to the axis of the first blind hole 4b.

[0004] The hook tail 4 is fixed to the rear of the vehicle by fasteners. The first through hole has high precision requirements. Based on the above forged trailer hook, it can be seen that the trailer hook is an irregular part. Therefore, conventional clamping fixtures cannot clamp and fix the trailer hook. Thus, a device needs to be designed to meet the positioning requirements during the machining of the forged trailer hook. Utility Model Content

[0005] This utility model provides a fixing device for processing forged trailer hooks. This utility model can not only clamp and position the trailer hook, but also has the advantage of high positioning accuracy.

[0006] The technical solutions to the above technical problems are as follows:

[0007] A fixing device for machining forged trailer hooks includes a support plate. The side wall of the support plate is provided with a first support block for supporting the connecting rod and hook tail of the trailer hook, a second support block for supporting the shank of the trailer hook, and a third support block for supporting the hook tail of the trailer hook; it also includes:

[0008] A first clamping assembly presses the connecting rod against the first support block, and the first clamping assembly is connected to the support plate;

[0009] A second clamping assembly is used to press the shin against the second support block; the second clamping assembly is connected to the support plate.

[0010] The third clamping assembly presses the hook tail onto the third support block, and the third clamping assembly is connected to the support plate.

[0011] In this invention, a first support block supports the connecting rod and the hook tail, and a first clamping assembly applies pressure to the connecting rod, pressing it firmly against the first support block. A second support block supports the shank of the trailer hook, and a second clamping assembly presses the shank firmly against the second support block. A third support block supports the hook tail of the trailer hook, and a third clamping assembly presses the hook tail firmly against the third support block. Therefore, based on the above structure, this invention clamps different parts of the trailer hook, achieving stable positioning. Furthermore, by using embedded stops, a first adjusting screw, and a second adjusting screw to fine-tune different parts of the trailer hook, the warpage of the trailer hook can be reduced, thereby improving clamping accuracy. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the trailer hook before processing.

[0013] Figure 2 This is a perspective view of the fixing device for processing forged trailer hooks according to this utility model.

[0014] Figure 3 In order to be in Figure 2 This is a diagram showing the parts that have been partially hidden.

[0015] Figure 4 In order to be in Figure 3 This is a diagram showing the parts that have been partially hidden.

[0016] Figure 5 This is a structural diagram of the processed trailer hook.

[0017] Labels in the attached diagram:

[0018] Connecting rod 1, shank 2, ball head 3, hook tail 4, first through hole 4a, first blind hole 4b.

[0019] Support plate 10, first groove 10a, assembly groove 10b, second groove 10c, third groove 10d, first support block 11, second support block 12, third support block 13, first boss 14, first screw hole 14a, first positioning block 15, first through hole 15a, first connecting screw 16, first positioning screw 17, second connecting screw 18, inlaid stop block 19, support component 20, disc 21, first pressure block 22, first mounting hole 22a, first screw 23, second pressure block 24, second mounting hole 24a, third mounting hole 24b, second screw 25, first clamping screw 26, third pressure block 27, fourth mounting hole 27a, third screw 28, first adjusting screw 29, second adjusting screw 30. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, 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 of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] like Figures 1 to 5 As shown, the fixing device for processing forged trailer hooks of this utility model includes a support plate 10, a first clamping assembly, a second clamping assembly, and a third clamping assembly. The following is a detailed description of each part and the relationship between them.

[0024] The side wall of the support plate 10 is provided with a first support block 11 for supporting the connecting rod 1 and hook tail 4 of the trailer hook, a second support block 12 for supporting the shank 2 of the trailer hook, and a third support block 13 for supporting the hook tail 4 of the trailer hook.

[0025] The first clamping assembly presses the connecting rod 1 against the first support block 11 and is connected to the support plate 10. The first clamping assembly includes a first pressure block 22 and a first screw 23. The first pressure block 22 has a first mounting hole 22a, and the support plate 10 has a second groove 10c. The first pressure block 22 and the second groove 10c are clearance-fitted. The first screw 23 passes through the first mounting hole 22a and is threaded into a third threaded hole on the support plate 10. The first mounting hole 22a is a slotted hole. Applying a pushing force to the first pressure block 22 allows it to move along the second groove 10c, thereby adjusting the clamping position of the first pressure block 22 on the connecting rod 1.

[0026] The present invention also includes a first positioning component. The first support block 11 is provided with a first boss 14. The first positioning component includes a first positioning block 15 for positioning the first side of the connecting rod 1, a first connecting screw 16, and a first positioning screw 17 for positioning the second side of the connecting rod 1. The first positioning block 15 is provided with a first through hole 15a. The first connecting screw 16 passes through the first through hole 15a and is threadedly connected to the first threaded hole provided on the support plate 10. The first boss 14 is provided with a first screw hole 14a. The first positioning screw 17 is threadedly connected to the first screw hole 14a on the first boss 14. The positioning of the connecting rod 1 can be fine-tuned by the positioning action of the first positioning block 15 and the first positioning screw 17 on the two sides of the connecting rod 1. When the first positioning block 15 and the first positioning screw 17 are pressed against the connecting rod 1, for example, the first positioning screw 17 is advanced by 1 mm and the first positioning block 15 is retracted by 1 mm, or the first positioning screw 17 is retracted by 1 mm and the first positioning block 15 is advanced by 1 mm. Through this fine-tuning, the positioning of the trailer hook is more accurate, which helps to improve the machining accuracy.

[0027] In this embodiment, the support plate 10 is provided with a first groove 10a, the first positioning block 15 is in clearance fit with the first groove 10a, and the first through hole 15a is a strip hole. Applying a thrust to the first positioning block 15 can make the first positioning block 15 move along the first groove 10a, thereby adjusting the feed amount of the first positioning block 15 toward the connecting rod 1.

[0028] This utility model also includes a first adjusting screw 29 for adjusting the height of the connecting rod 1. The first support block 11 is provided with a first mounting hole, which is a threaded hole located between the first boss 14 and the support plate 10. The first adjusting screw 29 is threadedly connected to the first mounting hole. The end of the first adjusting screw 29 abuts against the connecting rod 1. By rotating the first adjusting screw 29, the height of the connecting rod 1 can be adjusted to reduce the warping of the trailer hook.

[0029] The second clamping assembly presses the shin portion 2 against the second support block 12. The second clamping assembly is connected to the support plate 10. The second clamping assembly includes a second clamping block 24, a second screw 25, and a first clamping screw 26 that applies pressure to the shin portion 2. The second clamping block 24 has a second mounting hole 24a and a third mounting hole 24b. The second screw 25 passes through the second mounting hole 24a and is threaded into a fourth threaded hole on the support plate 10. The first clamping screw 26 is threaded into the third mounting hole 24b. The second mounting hole 24a is a strip-shaped hole. The position of the second clamping block 24 can be adjusted through the strip-shaped second mounting hole 24a, thereby adjusting the position of the first clamping screw 26, so that the first clamping screw 26 moves above the shin portion 2 that needs to be clamped.

[0030] This invention also includes a second positioning component. The support plate 10 has an assembly groove 10b located on one side of the second support block 12. The second positioning component includes a second connecting screw 18 and an insert stop 19 that abuts against the circumferential surface of the shank 2. The insert stop 19 engages with the assembly groove 10b, and the second connecting screw 18 passes through the insert stop 19 and is threaded into a second threaded hole on the support plate 10. The positioning effect of the insert stop 19 on the shank 2 further improves the positioning accuracy of the trailer hitch.

[0031] This utility model also includes a second adjusting screw 30 for adjusting the height of the connecting rod 1. The second support block 12 is provided with a second mounting hole, which is a threaded hole. The second adjusting screw 30 is threadedly connected to the second mounting hole. The end of the second adjusting screw 30 abuts against the shank 2. The shank 2 is clamped by the first clamping screw 26 and the second adjusting screw 30. The height of the shank 2 can be adjusted by rotating the second adjusting screw 30, thereby reducing the warping of the trailer hook.

[0032] The third clamping assembly presses the hook tail 4 onto the third support block 13, and is connected to the support plate 10. The third clamping assembly includes a third clamping block 27 and a third screw 28. The third clamping block 27 has a fourth mounting hole 27a, and the support plate 10 has a third groove 10d. The third clamping block 27 and the third groove 10d are clearance-fitted. The third screw 28 passes through the fourth mounting hole 27a and is threaded into a fifth threaded hole on the support plate 10. The fourth mounting hole 27a is a strip-shaped hole. Applying a pushing force to the third clamping block 27 allows it to move along the third groove 10d, thereby adjusting the clamping position of the third clamping block 27 on the hook tail 4.

[0033] This utility model also includes a support component 20 and a disc 21. The support plate 10 is fixed to the support component 20, and the support component 20 is fixed to the disc 21. The disc 21 is fixed to a rotary driver (not shown in the figure). The rotary driver drives the disc 21 to rotate. When the disc 21 rotates, it drives the support plate 10 to rotate through the support component 20, thereby switching the trailer hook between a flat position and a vertical position. In the vertical position, it is convenient to process the first through hole 4a on the hook tail 4. In the flat position, it is convenient to process the first blind hole 4b on the hook tail 4.

Claims

1. A fixing device for processing of a forged trailer hook, comprising a support plate (10), characterized in that, The side wall of the support plate (10) is provided with a first support block (11) for supporting the connecting rod (1) and hook tail (4) of the trailer hook, a second support block (12) for supporting the shank (2) of the trailer hook, and a third support block (13) for supporting the hook tail (4) of the trailer hook; it also includes: The connecting rod (1) is pressed against the first clamping assembly on the first support block (11), and the first clamping assembly is connected to the support plate (10); The shin (2) is pressed against the second support block (12) by a second clamping assembly, which is connected to the support plate (10); The hook tail (4) is pressed against the third clamping assembly on the third support block (13), and the third clamping assembly is connected to the support plate (10).

2. The fixing device for processing forged trailer hooks according to claim 1, characterized in that, It also includes a first positioning component. The first support block (11) is provided with a first boss (14). The first positioning component includes a first positioning block (15) for positioning the first side of the connecting rod (1), a first connecting screw (16), and a first positioning screw (17) for positioning the second side of the connecting rod (1). The first positioning block (15) is provided with a first through hole (15a). The first connecting screw (16) passes through the first through hole (15a) and is threaded to the first threaded hole provided on the support plate (10). The first boss (14) is provided with a first screw hole (14a). The first positioning screw (17) is threaded to the first screw hole (14a) on the first boss (14).

3. The fixing device for processing forged trailer hooks according to claim 2, characterized in that, The support plate (10) is provided with a first groove (10a), the first positioning block (15) is in clearance fit with the first groove (10a), and the first through hole (15a) is a strip hole.

4. The fixing device for processing forged trailer hooks according to claim 1, characterized in that, It also includes a second positioning component. The support plate (10) is provided with an assembly groove (10b) located on one side of the second support block (12). The second positioning component includes a second connecting screw (18) and an insert stop (19) that abuts against the circumferential surface of the shank (2). The insert stop (19) cooperates with the assembly groove (10b). The second connecting screw (18) passes through the insert stop (19) and is threadedly connected to the second threaded hole provided on the support plate (10).

5. The fixing device for processing forged trailer hooks according to claim 1, characterized in that, It also includes a support component (20) and a disc (21), with the support plate (10) fixed to the support component (20) and the support component (20) fixed to the disc (21).

6. The fixing device for machining forged trailer hooks according to any one of claims 1 to 5, characterized in that, The first clamping assembly includes a first clamping block (22) and a first screw (23). The first clamping block (22) is provided with a first mounting hole (22a), and the support plate (10) is provided with a second groove (10c). The first clamping block (22) and the second groove (10c) are in clearance fit. The first screw (23) passes through the first mounting hole (22a) and is threadedly connected to the third threaded hole provided on the support plate (10).

7. The fixing device for machining forged trailer hooks according to any one of claims 1 to 5, characterized in that, The second clamping assembly includes a second clamping block (24), a second screw (25), and a first clamping screw (26) that applies pressure to the shank (2). The second clamping block (24) is provided with a second mounting hole (24a) and a third mounting hole (24b). The second screw (25) passes through the second mounting hole (24a) and is threaded to a fourth threaded hole provided on the support plate (10). The first clamping screw (26) is threaded to the third mounting hole (24b).

8. The fixing device for machining forged trailer hooks according to any one of claims 1 to 5, characterized in that, The third clamping assembly includes a third clamping block (27) and a third screw (28). The third clamping block (27) is provided with a fourth mounting hole (27a), and the support plate (10) is provided with a third groove (10d). The third clamping block (27) and the third groove (10d) are in clearance fit. The third screw (28) passes through the fourth mounting hole (27a) and is threadedly connected to the fifth threaded hole provided on the support plate (10).

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