A hole-type terminal fixing fixture for heat-shrinkable wire harnesses

Abstract

This utility model discloses a terminal fixing fixture for heat shrinking wire harnesses, applying the field of heat shrinking wire harness technology. It includes a fixing plate with a terminal clamping post at its top. A base plate, bolted to the fixing plate, is welded to the bottom of the terminal clamping post. Trapezoidal clamping blocks are slidably connected to both sides of the terminal clamping post surface. By fitting the wire harness's terminal into the surface of the terminal clamping post, the base plate and trapezoidal clamping blocks hold the terminal in place. This prevents the terminal from sliding up and down on the terminal clamping post surface, improving the stability of the straightened wire harness and facilitating the heat shrink tubing to be heat-shrinked between the wire harness and the terminal. By clamping the other end of multiple wire harnesses in a wire harness slot between a sliding table and a pressure plate, and then sliding the sliding table away from the fixing plate, multiple wire harnesses can be simultaneously straightened and heat-shrinked using the heat shrink tubing after the terminal at one end of the wire harness is fixedly fitted onto the terminal clamping post surface, improving heat shrinking efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of wire harness heat shrinking technology, and specifically relates to a hole-type terminal fixing fixture for wire harness heat shrinking. Background Technology

[0002] The terminals of wire harnesses are typically metal conductors. Wrapping the terminals with heat shrink tubing provides an additional layer of insulation, effectively preventing short circuits caused by accidental contact between adjacent terminals or terminals and nearby metal components.

[0003] Currently, Chinese utility model patent CN218084240U discloses a fixing fixture for a hole-type terminal for heat shrinking wire harnesses. Existing hole-type terminal wire harnesses require fixing during heat shrinking, typically by fitting the wire harness hole-type terminal onto a fixing post. This straightens the wire harness, preventing bending that would prevent the heat shrink tubing from fully covering it, and also prevents the wire harness from being pulled.

[0004] Although this method prevents the wire harness from being pulled horizontally outwards, the wire harness's through-hole terminals are fitted onto the fixed posts. The smooth surface of the fixed posts makes the through-hole terminals prone to sliding up and down, resulting in poor stability at one end of the through-hole terminals after the wire harness is straightened. Furthermore, when heat-shrinking multiple wire harnesses, it is impossible to simultaneously straighten multiple wire harnesses for heat-shrinking, thus reducing the efficiency of wire harness heat-shrinking. Utility Model Content

[0005] The purpose of this utility model is to provide a hole-type terminal fixing fixture for heat shrinking of wire harnesses. Its advantages are to improve the stability of the wire harness after the hole-type terminal is sleeved on the fixing post and to facilitate the simultaneous straightening and heat shrinking of multiple wire harnesses.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hole-type terminal fixing fixture for heat shrinking of wire harnesses, comprising a fixing plate, a terminal locking post provided on the top of the fixing plate, a base plate welded to the bottom of the terminal locking post and bolted to the fixing plate, trapezoidal locking blocks slidably connected to both sides of the surface of the terminal locking post, and a spring bolted to the side of the two trapezoidal locking blocks that are close to each other and fixedly connected to the terminal locking post.

[0007] The above technical solution involves fitting the wire harness's perforated terminal onto the surface of the terminal clamp, where the base plate and trapezoidal clamping block hold the terminal in place. This prevents the perforated terminal from sliding up and down on the terminal clamp surface, improving the stability of the wire harness after straightening and facilitating the heat shrink tubing to be heat-shrinked between the wire harness and the perforated terminal. By clamping the other ends of multiple wire harnesses onto the wire harness slots between the sliding table and the pressure plate, and then sliding the sliding table away from the fixed plate, the perforated terminal at one end of the wire harness is fixedly fitted onto the terminal clamp surface. This allows multiple wire harnesses to be straightened simultaneously for heat shrinking of the heat shrink tubing, improving heat shrinking efficiency.

[0008] The present invention is further configured such that support plates are welded to both sides of the bottom of the fixed plate, a sliding table is provided between the two support plates, a limiting slide plate that is slidably connected to the support plate is welded to both sides of the bottom of the sliding table, a pressure plate is slidably connected to the top of the sliding table, a wire harness slot is provided between the pressure plate and the sliding table, and threaded rods that are threadedly connected to the sliding table are rotatably connected to both sides of the top of the pressure plate.

[0009] By adopting the above technical solution: after the hole-type terminal at one end of the wire harness is fixedly sleeved onto the surface of the terminal clip, multiple wire harnesses can be straightened at the same time to heat shrink the heat shrink tubing, thereby improving the heat shrinking efficiency.

[0010] The present invention is further configured such that a hole-type terminal is sleeved on the surface of the terminal post between the base plate and the trapezoidal block, a wire harness is welded to the end of the hole-type terminal away from the terminal post, and a heat shrink tubing is sleeved on the surface of the wire harness near the end of the hole-type terminal.

[0011] The above technical solution involves securing the wire harness by fitting the through-hole terminal onto the surface of the terminal block, and then straightening the harness. A heat-shrink tubing is then heated with a heat gun, causing it to shrink and wrap between the wire harness and the through-hole terminal, providing an additional insulating layer.

[0012] The present invention is further configured such that the top of the terminal block has an arc-shaped end, and the inside of the terminal block has oblique slots on both sides near the trapezoidal block for use with the trapezoidal block.

[0013] The above technical solution is adopted: the bottom of the inclined slot slides against the top inclined surface of the trapezoidal block, thereby limiting the sliding of the trapezoidal block to the outside of the terminal block and preventing the trapezoidal block from sliding out of the interior of the terminal block.

[0014] The present invention is further provided that rubber pads are adhered to both sides of the bottom of the support plate.

[0015] The above technical solution increases the bottom friction and provides a certain cushioning effect, thereby improving the stability of placement.

[0016] The present invention is further configured such that a limiting block for use with the sliding table is bolted to the top side of the support plate away from the fixed plate.

[0017] The above technical solution is used to limit the sliding of the sliding table on the top of the support plate, preventing the sliding table from sliding off the top of the support plate from the end of the support plate away from the fixed plate.

[0018] The present invention is further provided that the inner surface of the wire harness slot is provided with anti-slip stripes that cooperate with the wire harness.

[0019] The above technical solution increases the friction between the wire harness and the two wire harness slots, reducing the risk of accidental slippage during straightening.

[0020] The present invention is further configured such that a knob block is welded to the top of each of the two threaded rods.

[0021] The above technical solution facilitates operation by allowing the threaded rod to rotate through the knob block.

[0022] In summary, this utility model has the following beneficial effects: 1. By fitting the wire harness's through-hole terminals onto the surface of the terminal clips, the base plate and trapezoidal clips hold the through-hole terminals in place. This prevents the through-hole terminals from sliding up and down on the surface of the terminal clips, improving the stability of the wire harness after straightening and facilitating the heat shrink tubing to be heat-shrink between the wire harness and the through-hole terminals; 2. By clamping the other ends of multiple wire harnesses in the wire harness slots between the sliding table and the pressure plate, and then sliding the sliding table away from the fixed plate, the wire harnesses are simultaneously straightened and heat-shrinked onto the heat shrink tubing after the hole-type terminals at one end of the wire harnesses are fixedly sleeved onto the surface of the terminal clips, thus improving heat shrinking efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the terminal block structure of this utility model; Figure 3 This is a cross-sectional view of the sliding table structure of this utility model.

[0024] Reference numerals in the attached diagram: 1. Fixing plate; 2. Support plate; 3. Terminal clip; 4. Base plate; 5. Trapezoidal clip; 6. Spring; 7. Wire harness; 8. Hole terminal; 9. Heat shrink tubing; 10. Sliding table; 11. Pressure plate; 12. Wire harness slot; 13. Limiting slide plate; 14. Threaded rod; 15. Rubber pad; 16. Arc-shaped end; 17. Angled slot; 18. Limiting block; 19. Knob block. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1: refer to Figure 1 , Figure 2 A fixture for fixing a hole-type terminal for heat shrinking wire harnesses includes a fixing plate 1, a terminal retainer 3 on the top of the fixing plate 1, a base plate 4 welded to the bottom of the terminal retainer 3 and bolted to the fixing plate 1, trapezoidal retaining blocks 5 slidably connected to both sides of the surface of the terminal retainer 3, and springs 6 fixedly connected to the terminal retainer 3 on the side of the two trapezoidal retaining blocks 5 that are close to each other. By fitting the hole-type terminal 8 of the wire harness 7 onto the surface of the terminal retainer 3, the base plate 4 and the trapezoidal retaining blocks 5 clamp the hole-type terminal 8. This prevents the hole-type terminal 8 from sliding up and down on the surface of the terminal retainer 3, improves the stability of the wire harness 7 after straightening, and facilitates the heat shrinking of the heat shrink tubing 9 between the wire harness 7 and the hole-type terminal 8.

[0027] refer to Figure 1 A terminal block 3 has a hole-type terminal 8 fitted onto its surface between the base plate 4 and the trapezoidal locking block 5. A wire harness 7 is soldered to the end of the hole-type terminal 8 furthest from the terminal block 3. A heat-shrink tubing 9 is fitted onto the surface of the wire harness 7 closest to the hole-type terminal 8. The hole-type terminal 8 is fixed in place by fitting it onto the surface of the terminal block 3, and then the wire harness 7 is straightened. A heat gun is then used to heat the heat-shrink tubing 9, causing it to shrink and wrap between the wire harness 7 and the hole-type terminal 8, providing an additional insulating layer.

[0028] refer to Figure 2 The terminal retainer 3 has an arc-shaped end 16 at its top, and both sides of the terminal retainer 3 near the trapezoidal retainer 5 have inclined slots 17 that cooperate with the trapezoidal retainer 5. The bottom of the inclined slot 17 slides and abuts against the top inclined surface of the trapezoidal retainer 5, thereby limiting the sliding of the trapezoidal retainer 5 outward from the terminal retainer 3 and preventing the trapezoidal retainer 5 from sliding out of the interior of the terminal retainer 3.

[0029] Brief description of usage: The perforated terminal 8 at one end of the wire harness 7 is fitted onto the surface of the terminal retainer 3. When the perforated terminal 8 is moved downwards and fitted onto the surface of the terminal retainer 3, the perforated terminal 8 presses against the top of the trapezoidal retaining block 5. Since the top of the trapezoidal retaining block 5 is inclined, it overcomes the elastic force of the spring 6 after being subjected to force, thus sliding into the interior of the terminal retainer 3. After the perforated terminal 8 slides down to the bottom, it is now located between the base plate 4 and the trapezoidal retaining block 5. The trapezoidal retaining block 5 slides outwards from the terminal retainer 3 by the rebound force of the spring 6, clamping the perforated terminal 8 between the base plate 4 and the trapezoidal retaining block 5 for fixation. Since the bottom of the trapezoidal block 5 is flat, directly pulling the wire harness 7 cannot drive the hole terminal 8 to press the trapezoidal block 5 into the interior of the terminal post 3. This prevents the hole terminal 8 from sliding up and down on the surface of the terminal post 3. Only by manually pressing the trapezoidal block 5 into the interior of the terminal post 3 can the hole terminal 8 slide down out of the interior of the terminal post 3.

[0030] Example 2: refer to Figure 1 , Figure 3 A terminal fixing fixture for heat shrinking wire harnesses includes a fixing plate 1 with support plates 2 welded to both sides of its bottom. A sliding table 10 is positioned between the two support plates 2. Limiting slide plates 13, which are slidably connected to the support plates 2, are welded to both sides of the bottom of the sliding table 10. A pressure plate 11 is slidably connected to the top of the sliding table 10. Wire harness slots 12 are provided between the pressure plate 11 and the sliding table 10. Threaded rods 14, which are threaded through the sliding table 10, are rotatably connected to both sides of the top of the pressure plate 11. By clamping the other ends of multiple wire harnesses 7 into the wire harness slots 12 between the sliding table 10 and the pressure plate 11, and then sliding the sliding table 10 away from the fixing plate 1, the terminal 8 at one end of the wire harness 7 is fixedly sleeved onto the surface of the terminal post 3. This allows multiple wire harnesses 7 to be straightened simultaneously for heat shrinking of the heat shrink tubing 9, improving heat shrinking efficiency.

[0031] refer to Figure 1 Rubber pads 15 are glued to both sides of the bottom of the support plate 2. This increases the friction at the bottom and also provides a certain cushioning effect, improving the stability of the placement.

[0032] refer to Figure 2 A limiting block 18, which works in conjunction with the sliding table 10, is bolted to the top side of the support plate 2 away from the fixed plate 1. This limiting block restricts the sliding table 10 from sliding off the top of the support plate 2 at the top, preventing the sliding table 10 from sliding off the top of the support plate 2 at the end away from the fixed plate 1.

[0033] refer to Figure 3 The inner surface of the wire harness slot 12 is provided with anti-slip stripes that work in conjunction with the wire harness 7. This increases the friction of the wire harness 7 being clamped inside the two wire harness slots 12, reducing the risk of accidental slippage when straightening.

[0034] refer to Figure 1 , Figure 3 Both threaded rods 14 have a knob block 19 welded to their tops. This allows the threaded rods 14 to be rotated by turning the knob block 19, making operation convenient.

[0035] Brief description of the usage process: By fixing the hole terminal 8 at one end of the wire harness 7 onto the surface of the terminal clip 3, the heat shrink tubing 9 can be inserted between the wire harness 7 and the hole terminal 8 through the other end of the wire harness 7. Then, by placing the other end of the wire harness 7 inside the wire harness slot 12 between the sliding table 10 and the pressure plate 11, and rotating the threaded rod 14 to engage with the threaded sliding table 10, the pressure plate 11 is pushed downwards. The friction of the threaded engagement clamps the other end of the wire harness 7 away from the hole terminal 8 inside the wire harness slot 12. Finally, slide the sliding table 10 away from the fixing plate 1, so that multiple wire harnesses 7 can be straightened at the same time. Then, use a hot air gun to shrink the heat shrink tubing 9, so that the heat shrink tubing 9 is wrapped between the wire harness 7 and the hole terminal 8.

[0036] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A hole-type terminal fixing fixture for heat-shrinkable wire harnesses, comprising a fixing plate (1), characterized in that: The top of the fixed plate (1) is provided with a terminal clip (3), and the bottom of the terminal clip (3) is welded with a base plate (4) that is bolted to the fixed plate (1). Trapezoidal clips (5) are slidably connected to both sides of the surface of the terminal clip (3). A spring (6) that is fixedly connected to the terminal clip (3) is bolted to the side of the two trapezoidal clips (5) that are close to each other.

2. The hole-type terminal fixing fixture for heat-shrinkable wire harnesses according to claim 1, characterized in that: Support plates (2) are welded to both sides of the bottom of the fixed plate (1). A sliding table (10) is provided between the two support plates (2). Limiting slide plates (13) that are slidably connected to the support plates (2) are welded to both sides of the bottom of the sliding table (10). A pressure plate (11) is slidably connected to the top of the sliding table (10). A wire harness slot (12) is provided between the pressure plate (11) and the sliding table (10). Threaded rods (14) that are threaded through the sliding table (10) are rotatably connected to both sides of the top of the pressure plate (11).

3. A hole-type terminal fixing fixture for heat-shrinkable wire harnesses according to claim 1, characterized in that: A hole-type terminal (8) is sleeved on the surface of the terminal post (3) between the base plate (4) and the trapezoidal block (5). A wire harness (7) is welded to the end of the hole-type terminal (8) away from the terminal post (3). A heat shrink tubing (9) is sleeved on the surface of the wire harness (7) near the end of the hole-type terminal (8).

4. A hole-type terminal fixing fixture for heat-shrinkable wire harnesses according to claim 1, characterized in that: The terminal post (3) has an arc-shaped end (16) at the top, and the terminal post (3) has oblique slots (17) on both sides near the trapezoidal block (5) inside.

5. A hole-type terminal fixing fixture for heat-shrinkable wire harnesses according to claim 2, characterized in that: Rubber pads (15) are glued to both sides of the bottom of the support plate (2).

6. A hole-type terminal fixing fixture for heat-shrinkable wire harnesses according to claim 2, characterized in that: The top of the support plate (2) away from the fixed plate (1) is bolted with a limiting block (18) that works in conjunction with the sliding table (10).

7. A hole-type terminal fixing fixture for heat-shrinkable wire harnesses according to claim 3, characterized in that: The inner surface of the wire harness slot (12) is provided with anti-slip stripes that work in conjunction with the wire harness (7).

8. A hole-type terminal fixing fixture for heat-shrinkable wire harnesses according to claim 2, characterized in that: Both of the threaded rods (14) have a knob block (19) welded to their tops.

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