Mixing prevention tool for half shaft laser coding

Abstract

An anti-mixing tool for half-shaft laser coding comprises a positioning tool disc and a supporting bottom plate base structure, the positioning tool disc is arranged above the supporting bottom plate base structure, a lifting adjusting mechanism is arranged on the supporting bottom plate base structure, a detection base is installed at the output end of the lifting adjusting mechanism, and the detection base is provided with a positioning tool. A detection groove surface is formed in the upper surface of the detection seat, two optical fiber sensors are further mounted on the upper surface of the detection seat, the two optical fiber sensors are oppositely arranged on two opposite side parts of the detection groove surface, and the vertical distance between detection rays emitted by the optical fiber sensors and the detection groove surface is not higher than 8mm; the positioning tool disc is provided with a step positioning hole structure, the step positioning hole structure is used for containing a half shaft to be subjected to laser coding, and the step positioning hole structure and the detection groove face are oppositely arranged. The semi-shaft laser marking tool can accurately identify and distinguish semi-shafts with small length differences, realizes accurate laser marking on the semi-shafts, and is small in occupied space and convenient to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling and fixtures, and in particular relates to an anti-mixing tooling for semi-axis laser coding. Background Art

[0002] The half-shaft, also known as the drive shaft, is the shaft that connects the differential to the drive wheel. There are many types of automobile chassis drive half-shaft components, and the annual production volume is extremely high. Generally, there are more than 380 types of half-shafts with high mass production. Due to the high similarity in the appearance of half-shafts, there are dozens of types with a length difference of 8-20mm. During process control, it is impossible to accurately identify them by visual inspection by employees alone, which can easily lead to wrong installation and mixing of products, resulting in losses such as rework and disassembly in automobile manufacturing.

[0003] In the prior art, a patent document with announcement number CN216541405U discloses a semi-axis marking tool, including a bracket, a discharging rack is set on the bracket, a material receiving frame is set below the end of the discharging rack, a rectangular strip bottom plate is set on the end of the bracket away from the material receiving frame, slide grooves are respectively set on both ends of the bottom plate, and supports are respectively set on the slide grooves, and the upper part of the support includes a first protrusion and a second protrusion, the top surface of the first protrusion is an inclined surface, and the second protrusion is located on the upper half of the inclined surface of the first protrusion, and a lifting pin groove is set on the lower half of the inclined surface of the first protrusion, and a lifting pin is installed in the lifting pin groove, and the lifting pin is opened with an inclined surface with the same inclination as the inclined surface of the second protrusion, and a "V"-shaped groove with an inclined bottom is formed between the inclined surface of the lifting pin and the inclined surface of the second protrusion, and a limited position seat is set behind one of the supports. The above solution can position the half-axle and allow the laser head to accurately code, but its tooling structure occupies too much space, is inconvenient to operate, and does not solve the technical problem of accurately identifying and distinguishing half-axles with smaller length differences. Utility Model Content

[0004] 1. Technical Problems Solved

[0005] In view of the deficiencies in the prior art, the utility model proposes an anti-mixing tool for laser coding of half-axles, which can accurately identify and distinguish half-axles with smaller length differences, realize accurate laser coding of the half-axles, and has the advantages of small tooling space, simple structure and convenient operation.

[0006] 2. Specific technical solutions

[0007] A mixing prevention tool for semi-axis laser coding, comprising a positioning tool plate and a supporting base plate seat structure, wherein the positioning tool plate is arranged above the supporting base plate seat structure, and a lifting and lowering adjustment mechanism is arranged on the supporting base plate seat structure, and a detection seat is installed at the output end of the lifting and lowering adjustment mechanism, and a detection groove surface is provided on the upper surface of the detection seat, and two optical fiber sensors are also installed on the upper surface of the detection seat, and the two optical fiber sensors are relatively arranged on two opposite sides of the detection groove surface, and the vertical distance between the detection ray emitted by the optical fiber sensor and the detection groove surface is not higher than 8mm, and a stepped positioning hole structure is provided on the positioning tool plate, and the stepped positioning hole structure is used to place the semi-axis to be laser coded, and the stepped positioning hole structure is arranged relative to the detection groove surface.

[0008] Preferably, the lifting and lowering adjustment mechanism is provided with a vertical plate structure, which is provided to support the middle part of the base plate seat structure; an adjustment strip hole is opened in the middle part of the vertical plate structure; an adjustment locking handle is installed in the adjustment strip hole; a threaded hole is opened on the end face of the detection seat; the adjustment locking handle is provided with a stud structure, which passes through the adjustment strip hole and cooperates with the threaded hole for locking.

[0009] Preferably, a triangular reinforcing rib structure is provided around the vertical plate structure.

[0010] Preferably, a rubber gasket is provided on the end surface of the adjusting and locking handle, and the rubber gasket is sleeved on the stud structure and is in close contact with the vertical plate structure.

[0011] Preferably, the vertical plate structure is vertically mounted in the middle of the supporting base plate seat structure (2) by means of screws.

[0012] Preferably, the vertical distance between the detection ray emitted by the optical fiber sensor and the detection groove surface is 8 mm, and the groove depth of the detection groove surface is 3-4 mm.

[0013] Preferably, the detection seat is in the shape of a square block and is made of a nylon rod.

[0014] Preferably, a column head screw support foot structure is installed at the bottom of the supporting base plate seat structure.

[0015] The beneficial effects of the utility model are as follows: a detection seat is provided, and two optical fiber sensors are installed on the detection seat to detect semi-axes that meet the standard length, and the semi-axes that are not detected are semi-axes that are shorter than the standard; since the minimum difference in the length of the semi-axes is 8mm, and the vertical distance between the detection ray emitted by the optical fiber sensor and the detection groove surface is not higher than 8mm, the semi-axes that touch the detection groove surface are longer than the standard semi-axes, so that the required standard semi-axes can be placed on the positioning tooling disk to quickly identify whether they meet the length requirements, and complete the laser coding work, which can effectively prevent product mixing and wrong engraving during the process, improve the quality of product classification, and effectively reduce its screening cost, with high space utilization, convenient and fast operation, and high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the front side of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the side of the utility model.

[0018] In the figure: positioning tooling plate 1; supporting base plate structure 2; lifting and lowering adjustment mechanism 3; detection seat 4; detection groove surface 5; optical fiber sensor 6; stepped positioning hole structure 7;

[0019] Vertical plate structure 31; adjustment strip hole 32; adjustment locking handle 33; triangular reinforcing rib structure 34; rubber gasket 35; column head screw support foot structure 21. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "surface", "edge", "up", "down", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example:

[0024] like Figure 1 and Figure 2 As shown: an anti-mixing tool for semi-axis laser coding, which is provided with a positioning tool plate 1 and a supporting base plate seat structure 2. The positioning tool plate 1 is arranged above the supporting base plate seat structure 2, and a column head screw support foot structure 21 is installed at the bottom of the supporting base plate seat structure 2, which can be used to adjust the balance of the supporting base plate seat structure 2.

[0025] A lifting and lowering adjustment mechanism 3 is arranged on the supporting base plate seat structure 2, and a detection seat 4 is installed at the output end of the lifting and lowering adjustment mechanism 3. The detection seat 4 is in a square block shape and is made of nylon rod.

[0026] A detection groove surface 5 is opened on the upper surface of the detection seat 4, and two optical fiber sensors 6 are also installed on the upper surface of the detection seat 4. The two optical fiber sensors 6 are relatively arranged on two opposite sides of the detection groove surface 5, and the vertical distance between the detection ray emitted by the optical fiber sensor 6 and the detection groove surface 5 is 8mm, or the vertical distance between the detection ray emitted by the optical fiber sensor 6 and the detection groove surface 5 is not higher than 8mm, because the minimum length difference between the semi-axes is 8mm, and the groove depth of the detection groove surface 5 is 3-4mm, and the two optical fiber sensors 6 are both installed on the boss on the edge of the groove.

[0027] A stepped positioning hole structure 7 is provided on the positioning tooling disc 1 . The stepped positioning hole structure 7 is used to place the semi-axle to be laser-coded, and the stepped positioning hole structure 7 is arranged opposite to the detection groove surface 5 .

[0028] The above-mentioned lifting and adjusting mechanism 3 is provided with a vertical plate structure 31, which is vertically installed in the middle of the supporting base plate seat structure 2 by screws, and can also be connected to the supporting base plate seat structure 2 by other means such as welding. An adjustment strip hole 32 is opened in the middle of the vertical plate structure 31, and an adjustment locking handle 33 is installed in the adjustment strip hole 32. A threaded hole is opened on the end face of the detection seat 4, and the adjustment locking handle 33 is provided with a stud structure. The stud structure passes through the adjustment strip hole 32 and is locked with the threaded hole. A triangular reinforcement rib structure 34 is also provided around the bottom of the vertical plate structure 31 to enhance the stability of the vertical plate structure 31.

[0029] A rubber gasket 35 is provided on the end face of the adjustment locking handle 33, and the rubber gasket 35 is sleeved on the stud structure and in close contact with the vertical plate structure 31 to prevent the end face of the adjustment locking handle 33 from scratching the vertical plate structure 31. The rubber gasket 35 has a high friction coefficient and is easier to lock. A scale can be set on the vertical plate structure 31 to observe and adjust the detection seat 4 to fix it at a height suitable for the semi-axis length. However, this method requires the operator to control the accuracy and is too inefficient. Generally, a 4mm standard block is placed in the groove of the 3-4mm detection groove surface 5. The 4mm standard block can avoid knocking against the optical fiber sensor 6 on the boss at the edge of the groove in the 3-4mm groove, thereby preventing the optical fiber sensor 6 from shifting and detecting inaccurately or being damaged. Then, the previously coded standard semi-axis is placed in the stepped positioning hole structure 7 on the positioning tooling plate 1, so that the 4mm standard block contacts the lower end of the standard semi-axis, which means it is adjusted into place, so that the semi-axis of the same model as the standard semi-axis can be accurately identified and coded.

[0030] The error prevention principle is: the detection rays emitted by the optical fiber sensor 6 are set to be a ray and b ray respectively, and the detection groove surface 5 is the C line, that is, the bottom surface of the groove is the hard limit C line;

[0031] First, the C line is locked at a 3-4mm position with the semi-axis spacing through the above-mentioned standard block method. When the ray is cut off by an obstacle between the a ray and the b ray, that is, the current semi-axis is correctly replaced with the semi-axis of that degree, the switch is started to engrave the code; if there is an overlong semi-axis mixed in, the minimum difference in the semi-axis length is 8mm. When the semi-axis is too long, the vertical distance between the detection ray emitted by the optical fiber sensor 6 and the detection groove surface 5 is not higher than 8mm. The C line hard limit can effectively identify it to prevent mixed parts and mixed engraving; if there is an overshort semi-axis mixed in, there is no obstacle to cut off the ray between the a ray and the b ray, and the overshort semi-axis cannot trigger the start switch, and the code cannot be engraved normally, preventing mixed parts from being engraved incorrectly.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention shall be defined by the appended claims.

Claims

1. An anti-mixing tool for semi-axis laser coding, characterized by: The invention comprises a positioning tool plate (1) and a supporting base plate seat structure (2), wherein the positioning tool plate (1) is arranged above the supporting base plate seat structure (2), a lifting adjustment mechanism (3) is arranged on the supporting base plate seat structure (2), a detection seat (4) is installed at the output end of the lifting adjustment mechanism (3), a detection groove surface (5) is provided on the upper surface of the detection seat (4), two optical fiber sensors (6) are also installed on the upper surface of the detection seat (4), the two optical fiber sensors (6) are arranged on two opposite sides of the detection groove surface (5), and the vertical distance between the detection rays emitted by the optical fiber sensors (6) and the detection groove surface (5) is not higher than 8 mm, and a stepped positioning hole structure (7) is provided on the positioning tool plate (1), the stepped positioning hole structure (7) is used to place the semi-axis to be laser-coded, and the stepped positioning hole structure (7) is arranged opposite to the detection groove surface (5).

2. The anti-mixing tool for semi-axle laser coding according to claim 1 is characterized in that: The lifting and lowering adjustment mechanism (3) is provided with a vertical plate structure (31), the vertical plate structure (31) is provided to support the middle part of the base plate seat structure (2), an adjustment strip hole (32) is provided in the middle part of the vertical plate structure (31), an adjustment locking handle (33) is installed in the adjustment strip hole (32), a threaded hole is provided on the end surface of the detection seat (4), and the adjustment locking handle (33) is provided with a stud structure, and the stud structure passes through the adjustment strip hole (32) and cooperates with the threaded hole.

3. The anti-mixing tool for semi-axle laser coding according to claim 2 is characterized in that: A triangular reinforcing rib structure (34) is provided around the vertical plate structure (31).

4. The anti-mixing tool for semi-axle laser coding according to claim 2 or 3, characterized in that: A rubber gasket (35) is provided on the end surface of the adjusting and locking handle (33); the rubber gasket (35) is sleeved on the stud structure and is in close contact with the vertical plate structure (31).

5. The anti-mixing tool for semi-axle laser coding according to claim 4 is characterized in that: The vertical plate structure (31) is vertically mounted on the middle part of the supporting base plate seat structure (2) by means of screws.

6. The anti-mixing tool for semi-axle laser coding according to any one of claims 1 to 3 or 5, characterized in that: The vertical distance between the detection ray emitted by the optical fiber sensor (6) and the detection groove surface (5) is 8 mm, and the groove depth of the detection groove surface (5) is 3-4 mm.

7. The anti-mixing tool for semi-axle laser coding according to claim 1 is characterized in that: The detection seat (4) is in the shape of a square block.

8. The anti-mixing tool for semi-axle laser coding according to claim 1 is characterized by: A column head screw support foot structure (21) is installed at the bottom of the supporting base plate seat structure (2).

Images