A mistake proofing tooling for high voltage harness assembly

Abstract

The utility model discloses a mistake proofing tool for high pressure wire harness accessory assembly, including base, and the base is provided with two assembly fixture units at least parallelly, the surface of every assembly fixture unit forms a plurality of accessory accommodating groove of arranging according to assembly order, and the accessory accommodating groove includes waterproof plug groove of adapting to waterproof plug appearance, back cover groove of adapting to back cover appearance and heat shrink tube groove of adapting to heat shrink tube appearance. The utility model discloses through the accessory preposition in fixed accessory accommodating groove, and the forcible guidance operator takes the piece assembly according to the established order and direction, effectively avoids the missing and the wrong loading, and remarkably improves the assembly efficiency and production quality, reduces the rework rate and training cost.

Description

Technical Field

[0001] This utility model relates to a fault-prevention tooling, and more particularly to a fault-prevention tooling for assembling high-voltage wire harness accessories, belonging to the field of high-voltage wire harness manufacturing technology. Background Technology

[0002] In the production process of high-voltage wire harness connectors, multiple components (such as waterproof plugs, back covers, heat shrink tubing, etc.) need to be assembled onto the wire harness sequentially. Currently, this process largely relies on manual operation by workers. Workers must retrieve different components from scattered material boxes and assemble them in sequence based on memory and experience. This traditional method has the following significant drawbacks: 1. Inefficiency: Operators need to repeatedly turn around or move to pick up different parts and need to think about the next assembly step, which increases non-value-adding work time.

[0003] 2. High quality risk: It is very easy for quality accidents to occur due to missing a certain part or incorrect assembly order of parts. For example, if the back cover is installed before the waterproof plug, it will result in the product being unqualified.

[0004] 3. High dependence: Product quality is overly dependent on the operator's skill and attention, new employees have a long training cycle and a high error rate in the early stages of their work.

[0005] 4. High rework costs: If there is a missing or incorrect installation, it is often necessary to disassemble and rework the assembled part or all of it, which may even lead to the scrapping of wiring harnesses or accessories, resulting in waste of materials and labor time.

[0006] Therefore, there is an urgent need for an auxiliary tooling that can standardize work processes, prevent operational errors, and improve assembly efficiency to solve the above-mentioned technical problems. Utility Model Content

[0007] To address the shortcomings of the aforementioned technologies, this utility model provides a fault-prevention tooling for assembling high-voltage wiring harness accessories, aiming to solve the problems of low efficiency, easy omissions, and high defect rates caused by incorrect assembly in existing manual operations.

[0008] To solve the above technical problems, the technical solution adopted by this utility model is: a fault-proof tooling for assembling high-voltage wire harness accessories, including a base, on which at least two assembly fixture units are arranged side by side; Each assembly fixture unit has multiple accessory receiving slots arranged in the assembly sequence on its surface. The accessory receiving slots include a waterproof plug slot that matches the shape of the waterproof plug, a back cover slot that matches the shape of the back cover, and a heat shrink tubing slot that matches the shape of the heat shrink tubing.

[0009] Preferably, the waterproof plug groove and the rear cover groove are arranged sequentially along the vertical direction of the assembly fixture unit, and there are two waterproof plug grooves and two rear cover grooves, which are symmetrical about the horizontal center line of the assembly fixture unit.

[0010] Preferably, there are two heat shrink tubing grooves, which are distributed on both sides of the waterproof plug groove and are symmetrical about the vertical center line of the assembly fixture unit.

[0011] Preferably, the heat shrink tubing groove is a long strip-shaped groove and its length is greater than the length of the heat shrink tubing.

[0012] Preferably, there are five assembly fixture units, which are evenly distributed along the horizontal direction of the base, and the sidewalls of two assembly fixture units are in contact with each other.

[0013] Preferably, the base and the assembly fixture unit are integrally formed.

[0014] Preferably, the assembly fixture unit is detachably connected to the base via a connector.

[0015] Compared with the prior art, the present invention has the following significant advantages: 1. Effective error prevention: The physical slots limit the types, quantities, and placement order of parts, and operators can only operate according to the designed process, fundamentally avoiding omissions and incorrect installations.

[0016] 2. Improve efficiency: All parts are pre-placed on the tooling before operation. During operation, they only need to be taken from fixed positions, which reduces the action and time of picking up materials, eliminates thinking time, and standardizes and paces the assembly action.

[0017] 3. Reduced defect rate: Mandatory correct operating procedures significantly reduce product defects caused by human error, and improve product first pass rate and first pass rate.

[0018] 4. Easy to train: New employees do not need to memorize complex assembly sequences. They can quickly get started by simply following the tooling instructions, which reduces the difficulty and cost of training.

[0019] 5. Simple structure and low cost: The tooling has a simple structure, is easy to manufacture, and has low investment cost, but brings significant improvements in quality, benefits and efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a front structural diagram of the present invention.

[0022] Figure 3 This is a structural diagram of a single assembly fixture unit.

[0023] In the diagram: 1. Base; 2. Assembly fixture unit; 3. Accessory receiving slot; 4. Assembly hole; 31. Waterproof plug slot; 32. Rear cover slot; 33. Heat shrink tubing slot. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 , Figure 2 The error-proof tooling for assembling high-voltage wire harness accessories shown includes a base 1, on which at least two assembly fixture units 2 are arranged side by side; Each assembly fixture unit 2 has multiple accessory receiving slots 3 arranged in the assembly sequence on its surface. The accessory receiving slots 3 include a waterproof plug slot 31 that matches the shape of the waterproof plug, a back cover slot 32 that matches the shape of the back cover, and a heat shrink tubing slot 33 that matches the shape of the heat shrink tubing.

[0026] By arranging at least two identical assembly fixture units side by side on the base, each assembly fixture unit has multiple accessory receiving slots arranged in the assembly sequence on its surface, including a waterproof plug slot for placing a waterproof plug, a back cover slot for placing a back cover, and a heat shrink tubing slot for placing a heat shrink tubing. The shapes of the waterproof plug slot, back cover slot, and heat shrink tubing slot are respectively adapted to the partial or overall shape of the waterproof plug, back cover, and heat shrink tubing, forming a mistake-proof structure.

[0027] The shape of each accessory slot is matched to the shape of the corresponding accessory, forming a unique placement position and achieving a foolproof effect. For example, a non-circular back cover can only be placed in the back cover slot in one correct orientation. The physical slots limit the type, quantity, and placement order of accessories, avoiding omissions and misplacements.

[0028] Furthermore, the waterproof plug groove 31 and the rear cover groove 32 are arranged sequentially along the vertical direction of the assembly fixture unit. There are two waterproof plug grooves 31 and two rear cover grooves 32, and they are symmetrical about the horizontal center line of the assembly fixture unit.

[0029] Preferably, there are two heat shrink tubing grooves 33, which are distributed on both sides of the waterproof plug groove 31 and are symmetrical about the vertical center line of the assembly fixture unit. The heat shrink tubing grooves 33 are elongated grooves and their length is greater than the length of the heat shrink tubing, which makes it easy for operators to pick up and put in slender heat shrink tubing.

[0030] Preferably, there are five assembly fixture units 2, which are evenly distributed along the horizontal direction of the base, and the side walls of two assembly fixture units 2 are in contact with each other.

[0031] Assembly fixture unit 2 consists of five units, which can support one operator to simultaneously pre-set and assemble multiple sets of parts, enabling "one-piece flow" or small-batch operations and further optimizing the work cycle.

[0032] Furthermore, the base 1 and the assembly fixture unit 2 are integrally formed. Alternatively, the assembly fixture unit 2 can be detachably connected to the base 1 via a connector. The assembly fixture unit has assembly holes 4. The connector is a screw, the base is rectangular, and five identical assembly fixture units are fixed side by side to the base by screws, resulting in a compact layout that facilitates operation by the operator on the workbench.

[0033] The base and assembly fixture unit can be integrally injection molded or machined, or they can be separate units connected by screws or other means, which facilitates manufacturing and maintenance.

[0034] like Figure 3 As shown, each assembly fixture unit 2 has three key accessory receiving slots machined on its surface. Following the actual assembly process sequence, these are: waterproof plug slot, back cover slot, and heat shrink tubing slot. The shape of the waterproof plug slot matches the lower contour of the waterproof plug, ensuring stable placement. The shape of the back cover slot perfectly matches the irregular structure of the back cover, ensuring that the back cover can only be inserted in one correct orientation. The heat shrink tubing slot is a long, straight, inwardly recessed groove with a smooth inner wall, facilitating the insertion and removal of heat shrink tubing.

[0035] The working process of this utility model is as follows: 1. Preparation stage: The operator places the waterproof plug, back cover, and heat shrink tubing into the waterproof plug slot, back cover slot, and heat shrink tubing slot of the corresponding assembly fixture unit in sequence.

[0036] 2. Assembly stage: The operator takes a high-voltage wire harness and passes it through the waterproof plug and back cover that have been placed on the tooling in sequence.

[0037] 3. Completion stage: The operator removes the heat shrink tubing from the heat shrink tubing slot and assembles it into the designated position of the high-voltage wiring harness.

[0038] 4. Cyclic Operation: After one wire harness is assembled, the operator moves to the next pre-prepared fixture unit to continue the operation. At the same time, others or the operator can replenish materials on the completed fixture unit, forming a continuous operation cycle.

[0039] The purpose of this invention is to provide a mistake-proofing fixture for assembling high-voltage wire harness components. By pre-positioning components in fixed component receiving slots, it forces operators to pick up and assemble components in a predetermined order and direction, effectively avoiding omissions and misassemblies, significantly improving assembly efficiency and production quality, and reducing rework rates and training costs. This invention provides a simple and easy-to-use mistake-proofing fixture to forcibly standardize the assembly sequence and direction of high-voltage wire harness components, fundamentally eliminating omissions and misassemblies, and improving production efficiency and first-pass yield.

[0040] The above embodiments are not intended to limit the present utility model, nor is the present utility model 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 utility model are also within the protection scope of the present utility model.

Claims

1. A tooling system for preventing errors in the assembly of high-voltage wire harness accessories, characterized in that: Includes a base (1), on which at least two assembly fixture units (2) are arranged side by side; Each of the assembly fixture units (2) has a plurality of accessory receiving slots (3) arranged in the assembly sequence on its surface. The accessory receiving slots (3) include a waterproof plug slot (31) adapted to the shape of the waterproof plug, a rear cover slot (32) adapted to the shape of the rear cover, and a heat shrink tubing slot (33) adapted to the shape of the heat shrink tubing.

2. The error-proofing tooling for assembling high-voltage wire harness accessories according to claim 1, characterized in that: The waterproof plug groove (31) and the rear cover groove (32) are arranged sequentially along the vertical direction of the assembly fixture unit. There are two waterproof plug grooves (31) and two rear cover grooves (32), and they are symmetrical about the horizontal center line of the assembly fixture unit.

3. The error-proof tooling for assembling high-voltage wire harness accessories according to claim 2, characterized in that: There are two heat shrink tubing grooves (33), which are distributed on both sides of the waterproof plug groove (31) and are symmetrical about the vertical center line of the assembly fixture unit.

4. The error-proofing tooling for assembling high-voltage wire harness accessories according to claim 3, characterized in that: The heat shrink tubing groove (33) is a long strip groove and its length is greater than the length of the heat shrink tubing.

5. The error-proofing tooling for assembling high-voltage wire harness accessories according to claim 1, characterized in that: The assembly fixture unit (2) consists of five units and is evenly distributed along the horizontal direction of the base. The side walls of two assembly fixture units (2) are in contact with each other.

6. The error-proofing tooling for assembling high-voltage wire harness accessories according to claim 5, characterized in that: The base (1) and the assembly fixture unit (2) are integrally formed.

7. The error-proofing tooling for assembling high-voltage wire harness accessories according to claim 5, characterized in that: The assembly fixture unit (2) is detachably connected to the base (1) via a connector.

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