A kind of tooling jig for wiring harness connector heat shrink tube limiting shaping

Abstract

The utility model discloses a kind of for wiring harness connector heat shrink tube limiting sizing tooling jig, including base and flip, the side of flip and base is opened and closed connection, multiple parallel arrangement's work station is formed on base, each work station includes the positioning column of connector mounting seat for fastening wiring harness connector with free end setting, for accommodating the limiting slot of heat shrink tube with being set on positioning column;When flip is in closed state, it covers all limiting slot to form the shielding of heat shrink tube section in limiting slot, and then make heat shrink tube section located outside limiting slot exposed in exposed area;Batch and standardization of heat shrink tube operation are realized, flip is automatically formed shielding area and exposed area when closing, ensure that heat shrink tube only exposed part is heated and shrinks, effectively solve the problem that traditional handheld operation efficiency is low, quality is uneven, easy to scald, significantly improve consistency, safety and production efficiency.

Description

Technical Field

[0001] This utility model relates to tooling fixtures, and more particularly to a tooling fixture for limiting and shaping heat shrink tubing for wire harness connectors. Background Technology

[0002] In the assembly and production of wire harness connectors, in order to achieve the purposes of insulation protection, mechanical protection, and identification, it is often necessary to cover the tail section of the connector with heat shrink tubing, and then use a heat source such as a hot air gun to heat and shrink it to achieve a tight wrapping effect.

[0003] Currently, heat shrink tubing installations are generally performed manually. The operator must hold the connector with the heat shrink tubing already fitted throughout the process, while using a heat gun in the other hand. They rely on personal experience to control the heating distance, angle, and time to heat the tubing. This traditional method has many drawbacks: First, production efficiency is severely constrained. Since only a single product can be processed by hand at a time, it is impossible to achieve parallel operation of multiple workstations, which becomes an obstacle to speeding up the production line.

[0004] Secondly, product quality consistency is difficult to guarantee. The stability of manual operation is poor, and uneven heating of the heat shrink tubing is easily caused by hand shaking or uneven movement of the hot air gun. In actual production, some sections often become scorched, blackened, and degraded due to overheating, while other sections are underheated and fail to adhere tightly, resulting in substandard products and a large fluctuation in the product qualification rate.

[0005] Furthermore, the operation poses a high safety risk. The working temperature of the hot air gun is usually set at around 380℃. When operating at close range, the high-temperature hot air not only poses a risk of burns to the operator, but also easily damages the plastic shell of the connector or other sections of the heat shrink tubing that are near the heat shrink tubing, causing unnecessary damage to the components.

[0006] Finally, the hand-held baking process relies excessively on the operator's skill and personal experience, lacking objective and uniform operating standards. Key parameters such as baking time and distance are difficult to quantify and control, resulting in poor uniformity in appearance and performance between different batches and even within the same batch, which is detrimental to the management requirements of large-scale and standardized production.

[0007] Therefore, there is an urgent need in this field for a specialized tooling that can overcome the above-mentioned defects and achieve efficient, stable, safe and standardized heat shrink tubing processing operations. Utility Model Content

[0008] To address the shortcomings of the aforementioned technologies, this utility model provides a tooling fixture for limiting and shaping heat shrink tubing in wire harness connectors.

[0009] To solve the above technical problems, the technical solution adopted by this utility model is: a tooling fixture for limiting and shaping heat shrink tubing for wire harness connectors, including a base and a flip cover. The flip cover is connected to one side of the base. Multiple workstations are arranged in parallel on the base. Each workstation includes a positioning post with a connector mounting seat at its free end for fastening the wire harness connector and a limiting groove for accommodating the heat shrink tubing sleeved on the positioning post. When the flip cover is closed, it covers all the limiting grooves to shield the heat shrink tubing sections inside the limiting grooves, thereby exposing the heat shrink tubing sections outside the limiting grooves to the exposed area.

[0010] Furthermore, both the left and right sides of the base are machined with upward-turning side walls, and the side of the base away from the exposed area has a bottom wall that matches the height of the upward-turning side walls. An auxiliary hand buckle is formed between the upward-turning side walls and the bottom wall to avoid obstruction.

[0011] Furthermore, a magnet mounting position is configured at the corner of the flip-up side wall, and a matching magnet is set at the position corresponding to the flip cover and the magnet mounting position.

[0012] Furthermore, the flip cover is rotatably connected to the base via a flip hinge mounted on the free surface of the bottom wall.

[0013] Furthermore, multiple workstations are arranged side by side between the left and right upturned side walls. The limiting grooves of the workstations are separated by spacers. The spacers are formed in a way that their height matches the height of the upturned side walls. The spacers are also formed in a way that one end is not connected to the bottom wall and the other end does not extend to the exposed area.

[0014] Furthermore, the maximum width of the limiting groove is greater than the maximum width of the positioning post, and the bottom end of the positioning post is fastened to the inner side of the bottom wall.

[0015] Furthermore, the connector mounting base at the free end of the positioning post is a groove or snap-fit ​​structure that matches the shape of the connector to be fixed, and the maximum diameter of both the positioning post and the connector mounting base is smaller than the maximum diameter of the heat shrink tubing.

[0016] A tooling fixture for limiting and shaping heat shrink tubing for wire harness connectors enables batch and standardized heat shrink tubing operations. When the flip cover is closed, it automatically forms a shielded area and an exposed area, ensuring that only the exposed part of the heat shrink tubing is heated and shrunk. This effectively solves the problems of low efficiency, uneven quality, and easy burns caused by traditional hand-held operation, and significantly improves consistency, safety, and production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention. Figure 1 .

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 2 .

[0020] Figure 4 This is a schematic diagram of the overall structure of the positioning column.

[0021] In the diagram: 1. Base; 2. Flip-up side wall; 3. Bottom wall; 4. Magnet mounting position; 5. Exposed area; 6. Spacer block; 7. Limiting groove; 8. Positioning post; 9. Connector mounting base; 10. Heat shrink tubing; 11. Flip cover; 12. Auxiliary hand buckle. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] like Figure 1-4 As shown in the figure, the tooling fixture for limiting and shaping heat shrink tubing of wire harness connector in this embodiment has a main structure including a base 1 and a flip cover 11. The flip cover 11 is rotatably connected to one side of the base 1 through a flip hinge, so that the flip cover 11 can be freely opened and closed relative to the base 1.

[0024] In this embodiment, the base 1 is the main supporting component. The left and right sides of the base 1 extend upward as a whole to form an upward-flipping sidewall 2 of the same height, thereby constructing a U-shaped layout on the base 1. The side of the base 1 away from the operator extends upward to form a bottom wall 3. It can also be understood that the hinge for the free flipping of the cover 11 is connected to the free end face of the bottom wall 3 and the side of the cover 11 respectively. Furthermore, the height of the bottom wall 3 is flush with the upward-flipping sidewalls 2 on both sides, together enclosing the back and side boundaries of the tooling. The position between the upward-flipping sidewall 2 and the bottom wall 3 is specially hollowed out to form an auxiliary hand buckle 12 that is easy for fingers to insert.

[0025] To ensure reliable closure of the flip cover 11, a dedicated magnet mounting position 4 is provided at the corner of the upper flip side wall 2, with a magnet embedded inside. The corresponding position of the flip cover 11 is also equipped with a magnet. When the flip cover 11 is closed, the magnets on both sides attract each other, ensuring that the flip cover 11 remains in a stable closed state during hot air operation, effectively preventing quality problems caused by accidental opening.

[0026] Within the processing area of ​​the base 1 enclosed by the left and right upturned side walls 2 and the bottom wall 3 mentioned above, multiple identical workstations are arranged side by side. Each workstation includes a positioning post 8 for accurately inserting and fixing the wire harness connector. The positioning post 8 is vertically fixed on the inner side of the bottom wall 3 and also includes a limiting groove 7 for accommodating the positioning post 8.

[0027] To ensure that multiple workstations do not interfere with each other during batch operations, adjacent limiting slots 7 are physically isolated by spacer blocks 6. The height of the spacer blocks 6 is consistent with that of the upturned side wall 2, thus providing a flat closing surface for the flip cover 11. At the same time, one end of the spacer block 6 is not connected to the bottom wall 3 with a gap, and the other end terminates before the exposed area 5. This layout ensures structural strength and avoids obstructing hot air operations.

[0028] The free end of the positioning post 8 is equipped with a connector mounting base 9. The mounting base 9 can be made into a groove or snap-fit ​​structure that precisely matches the specific shape of the connector to be fixed, thereby achieving fast, non-destructive and precise positioning of the connector. In addition, the maximum diameter of the positioning post 8 and the connector mounting base 9 at its top must be smaller than the inner diameter of the heat shrink tubing 10 to ensure that the heat shrink tubing 10 can be smoothly inserted.

[0029] The working principle of this embodiment is as follows: During operation, the operator first opens the flip cover 11, and then inserts multiple small wire harness connectors into the connector mounting base 9 of the corresponding workstation to complete the fixation; next, the heat shrink tubing 10, which has been fitted onto the connector wire, is pushed backward into its corresponding limiting groove 7; after completion, the flip cover 11 is closed and locked by magnetic attraction.

[0030] The flip cover 11 completely covers the top of all the limiting grooves 7, forming a reliable shielding area, which effectively protects the section of heat shrink tubing 10 located inside the limiting groove 7 from direct impact of hot air, while the section of heat shrink tubing 10 located in front of the limiting groove 7 and in the exposed area 5 is completely exposed.

[0031] Operators can use a heat gun to simultaneously heat the heat shrink tubing 10 sections within an entire row of exposed product areas 5 under uniform operating parameters. The heat shrink tubing 10 shrinks only in the exposed portion, tightly wrapping the wire harness, while the shielded portion of the heat shrink tubing 10 remains unchanged.

[0032] This application discloses a tooling fixture for limiting and shaping heat shrink tubing for wire harness connectors, which realizes the batch and standardization of heat shrink tubing operation. When the flip cover is closed, it automatically forms a shielded area and an exposed area, ensuring that only the exposed part of the heat shrink tubing is heated and shrunk. This effectively solves the problems of low efficiency, uneven quality, and easy burns caused by traditional hand-held operation, and significantly improves consistency, safety and production efficiency.

[0033] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present invention are also within the protection scope of the present invention.

Claims

1. A tooling fixture for limiting and shaping heat shrink tubing in wire harness connectors, characterized in that: Includes a base (1) and a flip cover (11), the flip cover (11) being connected to one side of the base (1) in an open-closed manner, the base (1) having multiple parallel workstations, each of the workstations including a positioning post (8) with a connector mounting seat (9) at its free end for fastening the wire harness connector, and a limiting groove (7) for accommodating a heat shrink tube (10) sleeved on the positioning post (8). When the flap (11) is in the closed state, it covers all the limiting grooves (7) to form a shield for the heat shrink tubing (10) section inside the limiting grooves (7), thereby exposing the heat shrink tubing (10) section outside the limiting grooves (7) to the exposed area (5).

2. The tooling fixture for limiting and shaping heat shrink tubing in wire harness connectors according to claim 1, characterized in that: The base (1) has upturned sidewalls (2) on both the left and right sides. The base (1) has a bottom wall (3) on the side away from the exposed area (5) that matches the height of the upturned sidewall (2). An auxiliary hand buckle (12) is formed between the upturned sidewall (2) and the bottom wall (3) to avoid the impact.

3. The tooling fixture for limiting and shaping heat shrink tubing in wire harness connectors according to claim 2, characterized in that: The corner of the upturned side wall (2) is configured as a magnet mounting position (4), and the flip cover (11) is provided with a matching magnet at the position corresponding to the magnet mounting position (4).

4. The tooling fixture for limiting and shaping heat shrink tubing in wire harness connectors according to claim 2, characterized in that: The flip cover (11) is rotatably connected to the base (1) by a flip hinge installed on the free surface of the bottom wall (3).

5. The tooling fixture for limiting and shaping heat shrink tubing in wire harness connectors according to claim 2, characterized in that: Multiple workstations are arranged in parallel between the left and right sides of the upturned sidewalls (2). The limiting grooves (7) of the workstations are separated by spacers (6). The spacers (6) are formed in such a way that their height matches the height of the upturned sidewalls (2). The spacers (6) are also formed in such a way that one end is not connected to the bottom wall (3) and the other end does not extend to the exposed area (5).

6. The tooling fixture for limiting and shaping heat shrink tubing in wire harness connectors according to claim 2, characterized in that: The maximum width of the limiting groove (7) is greater than the maximum width of the positioning column (8), and the bottom end of the positioning column (8) is fastened to the inner side of the bottom wall (3).

7. The tooling fixture for limiting and shaping heat shrink tubing in wire harness connectors according to claim 1, characterized in that: The connector mounting base (9) at the free end of the positioning post (8) is a groove or snap-fit ​​structure that matches the shape of the connector to be fixed. The maximum diameter of both the positioning post (8) and the connector mounting base (9) is smaller than the maximum diameter of the heat shrink tubing (10).

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