Positioning tool for automobile transmission shaft machining

Abstract

The utility model discloses a positioning tool for machining an automobile transmission shaft, which relates to the technical field of transmission shaft machining and comprises a base, two fixing clamping plates are slidably connected to the upper end of the base, a positioning groove is formed in the side wall of the front end of the base, and positioning rods are fixedly connected to the side walls of the front ends of the fixing clamping plates. The end, away from the fixing clamping plate, of the positioning rod is slidably arranged in the positioning groove and provided with a threaded part, the threaded part of the positioning rod is in threaded connection with a nut, scale values are arranged on the front end face of the base, and a pointer is fixedly connected to the side face, close to the base, of the positioning rod. The problems that in the prior art, a fixed clamping plate cannot be fixed to the position between every two adjacent positioning holes, and adjustment cannot be conducted flexibly according to the length of a transmission shaft are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shaft processing, in particular to a positioning tool for processing automobile transmission shafts. Background Art

[0002] The positioning fixture for automobile transmission shaft processing is a fixture used to position and fix the automobile transmission shaft during the processing. It is usually composed of a fixture, a fixture seat, a positioning pin, a fixture bolt and other components, which can ensure that the transmission shaft maintains the correct position and posture during the processing, thereby ensuring the processing accuracy and quality.

[0003] The Chinese utility model with authorization announcement number CN219562788U proposes a positioning tool for processing automobile drive shafts: a positioning hole is set on the base. Before using the positioning device, the position of the fixed clamp is adjusted according to the length of the automobile drive shaft. When the drive shaft is not placed, the position of the fixed clamp is adjusted in advance according to its measured length. The adjustment process is quick and convenient. When the drive shaft is placed, the weight of the drive shaft causes the positioning bolt to be pressed down and engaged with the positioning hole, thereby limiting the position of the fixed clamp.

[0004] The prior art has the following defects: a positioning hole is provided on the base, and the positioning bolt is pressed down to engage with the positioning hole to achieve the limitation of the fixed splint, which means that the fixed splint can only be fixed directly above the positioning hole, and the fixed splint cannot be fixed at the position between two adjacent positioning holes, and cannot be flexibly adjusted according to the length of the transmission shaft. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a positioning tool for processing an automobile transmission shaft, which solves the problem that the fixing clamp plate in the prior art cannot be fixed at the position between two adjacent fixing holes and cannot be flexibly adjusted according to the length of the transmission shaft.

[0006] To achieve the above-mentioned purpose, according to the embodiment of the first aspect of the utility model, a positioning tool for processing automobile transmission shaft is proposed, including: a base, two fixed clamps are slidably connected to the upper end of the base, a positioning groove is opened on the front end side wall of the base, a positioning rod is fixedly connected to the front end side wall of the fixed clamp, the end of the positioning rod away from the fixed clamp is slidably arranged in the positioning groove, a threaded portion is arranged on the end of the positioning rod away from the fixed clamp, a nut is threadedly connected to the threaded portion of the positioning rod, a scale value is arranged on the front end surface of the base, and a pointer is fixedly connected to the side of the positioning rod close to the base, and the pointer points to the scale value.

[0007] As a further solution of the utility model: symmetrically and fixedly connected to the bottom end of the base are support plates, symmetrically provided on the upper end of the base are sliding grooves, symmetrically and fixedly connected to the bottom end of the fixed clamping plate are sliding blocks, and the sliding blocks are slidably connected in the corresponding sliding grooves.

[0008] As a further solution of the utility model: hinged to the upper end of the fixed clamping plate is a movable clamping plate, both the movable clamping plate and the fixed clamping plate are in a "U" shape, fixedly connected to the end face of the fixed clamping plate away from the hinged part is a clamping block, the clamping block is made of an elastic material, and provided on the end face of the movable clamping plate away from the hinged part is a clamping groove that cooperates with the clamping block.

[0009] As a further solution of the utility model: slidably connected inside the movable clamping plate is an upper low-voltage block, rotatably connected to the upper end of the upper low-voltage block is a screw rod, the screw rod is threadedly connected to the movable clamping plate, the screw rod penetrates through the side wall of the movable clamping plate and extends to the outside, and fixedly connected inside the fixed clamping plate is a lower low-voltage block.

[0010] As a further solution of the utility model: the positioning rod is in a "U" shape.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] Find the corresponding scale value position according to the length of the automobile drive shaft, slide the sliding block on the base, and slide the end of the positioning rod in the positioning groove until the pointer slides to the corresponding scale value position, then tighten the nut so that the end face of the nut is tightly attached to the front end face of the base, and the fixed clamping plate can be fixed at any position on the base. Description of the Drawings

[0013] Figure 1 is the structural schematic diagram of the utility model;

[0014] Figure 2 is the partial structural schematic diagram of the utility model;

[0015] Figure 3 is the cross-sectional view of the movable clamping plate and the fixed clamping plate of the utility model.

[0016] In the figure: 1, base; 2, sliding groove; 3, positioning groove; 4, support plate; 5, movable clamping plate; 6, fixed clamping plate; 7, sliding block; 8, screw rod; 9, upper low-voltage block; 10, lower low-voltage block; 11, positioning rod; 12, pointer; 13, nut; 14, clamping block; 15, clamping groove. Detailed Embodiment

[0017] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0018] As Figures 1-3 shown, a positioning tooling for machining an automotive drive shaft includes: a base 1, symmetrically and fixedly connected with support plates 4 at the bottom end of the base 1, and two fixed clamping plates 6 are slidably connected to the upper end of the base 1. Specifically, sliding grooves 2 are symmetrically formed at the upper end of the base 1, and symmetrically and fixedly connected with sliders 7 at the bottom end of the fixed clamping plates 6, and the sliders 7 are slidably connected in the corresponding sliding grooves 2.

[0019] An adjustable clamping plate 5 is hinged to the upper end of the fixed clamping plate 6. Both the adjustable clamping plate 5 and the fixed clamping plate 6 are in a "U" shape. A clamping block 14 is fixedly connected to the end face of the fixed clamping plate 6 away from the hinge. The clamping block 14 is made of an elastic material. A clamping groove 15 cooperating with the clamping block 14 is formed in the end face of the adjustable clamping plate 5 away from the hinge. The clamping groove 15 and the clamping block 14 are clamped to fix the adjustable clamping plate 5 on the fixed clamping plate 6.

[0020] An upper low-pressure block 9 is slidably connected inside the adjustable clamping plate 5. The upper low-pressure block 9 can move along the vertical direction. A screw rod 8 is rotatably connected to the upper end of the upper low-pressure block 9. The screw rod 8 is threadedly connected with the adjustable clamping plate 5. The screw rod 8 penetrates through the side wall of the adjustable clamping plate 5 and extends to the outside. A lower low-pressure block 10 is fixedly connected inside the fixed clamping plate 6. The shapes of the upper low-pressure block 9 and the lower low-pressure block 10 are adapted to the automotive drive shaft.

[0021] During use, adjust the position of the fixed clamping plate 6 on the base 1 according to the length of the automotive drive shaft. Rotate the adjustable clamping plate 5 to take out the clamping block 14 from the clamping groove 15, so that the adjustable clamping plate 5 is separated from the fixed clamping plate 6. Place the automotive drive shaft on the lower low-pressure block 10. Rotate the adjustable clamping plate 5 again to make the clamping groove 15 and the clamping block 14 clamped to fix the adjustable clamping plate 5 on the fixed clamping plate 6. Rotate the screw rod 8, and the screw rod 8 drives the upper low-pressure block 9 to move downward to cooperate with the lower low-pressure block 10 to clamp and position the automotive drive shaft.

[0022] A positioning groove 3 is formed in the front side wall of the base 1. A positioning rod 11 is fixedly connected to the front side wall of the fixed clamping plate 6. The positioning rod 11 is in a "U" shape. The end of the positioning rod 11 away from the fixed clamping plate 6 is slidably arranged in the positioning groove 3. When the slider 7 slides in the sliding groove 2, the end of the positioning rod 11 slides in the positioning groove 3. A threaded portion is provided on the end of the positioning rod 11 away from the fixed clamping plate 6. A nut 13 is threadedly connected to the threaded portion of the positioning rod 11. A scale value is provided on the front end face of the base 1. A pointer 12 is fixedly connected to the side of the positioning rod 11 close to the base 1. The pointer 12 points to the scale value.

[0023] The specific process of adjusting the position of the fixed clamping plate 6 on the base 1 according to the length of the automobile drive shaft: Find the corresponding scale value position according to the length of the automobile drive shaft. Slide the slider 7 on the base 1, and the end of the positioning rod 11 slides in the positioning groove 3 until the pointer 12 slides to the corresponding scale value position. Tighten the nut 13 so that the end face of the nut 13 is in close contact with the front end face of the base 1, and then fix the fixed clamping plate 6 and the movable clamping plate 5 on the base 1 through the positioning rod 11.

[0024] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A positioning tool for processing an automobile transmission shaft, characterized in that: Including: A base (1), two fixed clamping plates (6) are slidably connected to the upper end of the base (1). A positioning groove (3) is formed on the front side wall of the base (1). A positioning rod (11) is fixedly connected to the front side wall of the fixed clamping plate (6). The end of the positioning rod (11) away from the fixed clamping plate (6) is slidably arranged in the positioning groove (3). A threaded portion is provided on the end of the positioning rod (11) away from the fixed clamping plate (6). A nut (13) is threadedly connected to the threaded portion of the positioning rod (11). A scale value is provided on the front end face of the base (1). A pointer (12) is fixedly connected to the side of the positioning rod (11) close to the base (1), and the pointer (12) points to the scale value.

2. The positioning tool for automobile transmission shaft processing according to claim 1, characterized in that: Support plates (4) are symmetrically and fixedly connected to the bottom end of the base (1). Chute grooves (2) are symmetrically formed on the upper end of the base (1). Sliders (7) are symmetrically and fixedly connected to the bottom end of the fixed clamping plate (6), and the sliders (7) are slidably connected in the corresponding chute grooves (2).

3. The positioning tool for automobile transmission shaft processing according to claim 1, characterized in that: A movable clamping plate (5) is hinged to the upper end of the fixed clamping plate (6). Both the movable clamping plate (5) and the fixed clamping plate (6) are in a "U" shape. A clamping block (14) is fixedly connected to the end face of the fixed clamping plate (6) away from the hinge. The clamping block (14) is made of an elastic material. A clamping groove (15) that cooperates with the clamping block (14) is formed on the end face of the movable clamping plate (5) away from the hinge.

4. The positioning tool for processing an automobile transmission shaft according to claim 3, characterized in that: An upper low-pressure block (9) is slidably connected inside the movable clamping plate (5). A screw rod (8) is rotatably connected to the upper end of the upper low-pressure block (9). The screw rod (8) is threadedly connected to the movable clamping plate (5). The screw rod (8) penetrates through the side wall of the movable clamping plate (5) and extends to the outside. A lower low-pressure block (10) is fixedly connected inside the fixed clamping plate (6).

5. The positioning tool for processing an automobile transmission shaft according to claim 1, characterized in that: The positioning rod (11) is in a "U" shape.

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