Thermal shrinkage jig for positioning thermal shrinkage tube
By designing a heat shrink fixture with adjustable limit and fixing mechanisms, the problem of fixtures not being universal is solved, cost savings and simplified operations are achieved, and it can adapt to different types of terminals and wire harnesses.
Patent Information
- Application Number
- CN202422830465.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Existing jigs are not universal, which leads to frequent replacement of heat shrink jigs and high costs.
A heat shrink fixture with adjustable limiting and fixing mechanisms is designed, which includes a plate-shaped fixture body, an adjustable limiting mechanism and a detachable fixing mechanism. Sliding and fixing are achieved through a bolt structure to adapt to different types of terminals and wiring harnesses.
It reduces the cost of repeated development of jigs, simplifies the replacement process, saves man-hours, is easy to operate, and ensures the rationality of the position of the heat shrink tubing after shrinkage.
Smart Images

Figure CN223407507U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, and more specifically, to a heat shrink jig for positioning a heat shrink tube. Background Art
[0002] In the prior art, after the terminal and the wiring harness are electrically connected, a heat shrink tube needs to be put on the connection between the two and sealed. After the heat shrink tube shrinks at high temperature, the position of the heat shrinkage needs to be controlled. Currently, according to the different distances between each terminal and the heat shrink tube, special jigs need to be prepared separately. Since the jigs are not universal, the heat shrink jigs need to be frequently replaced, which is costly.
[0003] Therefore, a new structure is needed to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a heat shrink jig for positioning heat shrink tubing, which is used to limit the position of the heat shrink tubing installed on the wiring harness, and includes a jig body, a limiting mechanism, and a plurality of different fixing mechanisms.
[0005] The jig body is plate-shaped, the limiting mechanism is arranged perpendicular to the jig body and abuts against one end of the heat shrink tube, and the distance between the limiting mechanism and the jig body is adjustable;
[0006] The fixing mechanism is detachably arranged on the jig body and can slide on the jig body. The fixing mechanism is provided with a limiting column for positioning the wiring harness.
[0007] Optionally, the jig body includes a main body and support bodies arranged on both sides of the main body, and an elongated hole is provided on the support body along the sliding direction of the fixing mechanism. The fixing mechanism includes a fixing body and an installation body arranged on both sides of the fixing body, and an installation hole is provided on the installation body. The fixing mechanism can be slid on the jig body by passing a bolt structure through the installation hole and the elongated hole.
[0008] Optionally, by tightening the bolt structure, the relative positions of the fixing mechanism and the fixture body can be fixed.
[0009] Optionally, a plurality of spaced apart fixing arms extend from the same side of the fixing body, and the limiting column is perpendicularly arranged at the free end of the fixing arm.
[0010] Optionally, at least one fixing rib extends vertically from the limiting mechanism, and the fixing rib is arranged between the main body and the fixing body and between two adjacent fixing arms.
[0011] Optionally, a slot is provided on the fixing rib along the sliding direction of the fixing mechanism, and a positioning column is provided on the main board body. When the fixing rib is located between the main board body and the fixing body, the positioning column is located in the slot, and the limiting mechanism can adjust the distance between it and the fixture body along the slot.
[0012] Optionally, a plurality of fixing columns are further included, and the fixing columns are sleeved on the limiting columns.
[0013] Optionally, the fixing mechanism includes a first fixing mechanism and a second fixing mechanism, and the first fixing mechanism and the second fixing mechanism are respectively arranged on two sides of the fixture body.
[0014] Optionally, the first fixing mechanism and the second fixing mechanism are symmetrically arranged and connected to each other via a connecting column, and the limiting columns on the first fixing mechanism and the second fixing mechanism extend in opposite directions.
[0015] Optionally, the limiting mechanism includes a first limiting mechanism and a second limiting mechanism, the first limiting mechanism and the second limiting mechanism are arranged on both sides of the fixture body and are symmetrical to each other, and at least one protruding support body extending vertically to between the first limiting mechanism and the second limiting mechanism is provided on the main body.
[0016] The utility model has the following technical effects:
[0017] One end of the heat shrink tubing abuts the outside of the limiter. By adjusting the position of the limiter, the distance between the heat shrink tubing and the terminal is controlled, ensuring the proper position of the heat shrink tubing after shrinkage. This reduces the cost of repeated fixture development, facilitates replacement of the limiter and fixing mechanisms, saves time, and simplifies operation.
[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
[0020] Figure 1 This is a schematic diagram of the overall structure of the heat shrink jig of the present invention;
[0021] Figure 2 This is a schematic diagram of the connection relationship between different structures of the heat shrink jig of the present invention.
[0022] The following are marked in the figure:
[0023] 10. Fixture body; 20. Limiting mechanism; 30. Fixing mechanism;
[0024] 110, main body; 120, support body; 121, long hole;
[0025] 210, fixing rib; 211, slot; 220, first limiting mechanism; 230, second limiting mechanism;
[0026] 310 , fixed body; 320 , mounting body; 311 , fixed arm; 312 , limiting column; 320 , first fixing mechanism; 330 , second fixing mechanism. DETAILED DESCRIPTION
[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.
[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.
[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0030] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0031] like Figure 1-Figure 2 The heat shrink jig for positioning the heat shrink tube shown is used to limit the position of the heat shrink tube installed on the wiring harness. Its structure includes a jig body 10, a limiting mechanism 20, and a plurality of different fixing mechanisms 30.
[0032] The fixture body 10 is plate-shaped, the limiting mechanism 20 is arranged perpendicular to the fixture body 10 and abuts against one end of the heat shrink tube, and the distance between the limiting mechanism 20 and the fixture body 10 is adjustable;
[0033] The fixing mechanism 30 is detachably provided on the jig body 10 and can slide on the jig body 10 . The fixing mechanism 30 is provided with a limiting column for positioning the wiring harness.
[0034] In a specific embodiment, one end of the terminal is fixed to the fixing mechanism 30, and the other end of the terminal is connected to the wiring harness. A heat shrink tube is set at the connection between the wiring harness and the terminal to seal the two. One end of the heat shrink tube abuts against the outside of the limiting mechanism 20 (such as Figure 1 (As shown, the side opposite the fixing mechanism is the outer side of the limit mechanism.) By adjusting the position of the limit mechanism 20, the distance between the heat shrink tubing and the terminal is controlled to ensure the proper position of the heat shrink tubing after shrinkage. This reduces the cost of repeated jig development, facilitates replacement of the limit mechanism 20 and fixing mechanism 30, saves time, and simplifies operation.
[0035] Specifically, the fixture body 10 includes a main body 110 and support bodies 120 disposed on both sides of the main body 110. The support bodies 120 are provided with elongated holes 121 along the sliding direction of the fixing mechanism 30. The fixing mechanism 30 includes a fixing body 310 and mounting bodies 320 disposed on both sides of the fixing body 310. The mounting bodies 320 are provided with mounting holes. Bolts are passed through the mounting holes and the elongated holes 121. The fixing mechanism 30 can be slid on the fixture body 10 by adjusting the tightness of the screws and nuts. By moving the fixing bodies 310, the distance between the heat shrink tubing and the terminal can also be controlled.
[0036] In one embodiment, the fixing mechanism 30 and the fixture body 10 can be fixed relative to each other by tightening the bolt structure.
[0037] In one embodiment, a plurality of spaced apart fixing arms 311 extend from the same side of the fixing body 310. The free ends of the fixing arms 311 are perpendicularly provided with the limiting posts 312. The terminals are provided with terminal holes, which are sleeved on the limiting posts 312. The wiring harness extends in the opposite direction of the telescopic movement of the limiting mechanism 20 and is placed on the limiting mechanism 20. Specifically, the limiting mechanism 20 is provided with grooves that are sequentially arranged, and the number of grooves can be set one-to-one with the number of limiting posts 312 to ensure uniform distribution of the entire wiring harness. After the wiring harness is sleeved with heat shrink tubing, it is placed in the grooves and can be properly fixed. The heat shrink tubing is placed on the outside of the limiting mechanism 20. By moving the limiting mechanism 20, the distance between the heat shrink tubing and the terminal can be adjusted. The heat shrink position of the heat shrink tubing can be adjusted according to product requirements.
[0038] In one embodiment, at least one fixing rib 210 extends vertically on the limiting mechanism 20. The fixing rib 210 is arranged between the main body 110 and the fixed body 310 and is located between two adjacent fixing arms 311, and serves as a force support point for the adjustment of the limiting mechanism 20.
[0039] like Figure 2As shown, a slot 211 is provided on the fixing rib 210 along the sliding direction of the fixing mechanism 30, and a positioning column is provided on the main board body 110. When the fixing rib 210 is located between the main board body 110 and the fixing body 310, the positioning column is located in the slot 211, and the limiting mechanism 20 can adjust the distance between it and the fixture body 10 along the slot 211.
[0040] In one embodiment, a plurality of fixing posts are further included, which are sleeved onto the limiting posts 312. Since the shapes and sizes of terminals vary, the sizes of the terminal holes vary. To ensure that the heat shrink jig is suitable for terminals of different sizes, fixing posts of different diameters can be sleeved onto the fixing posts to accommodate different terminal sizes. This ensures that the heat shrink jig body 10 remains unchanged, reducing the cost of repeated jig development. In addition, the fixing posts can be quickly inserted and removed, saving work time and simplifying operation.
[0041] In one embodiment, the fixing mechanism 30 includes a first fixing mechanism 320 and a second fixing mechanism 330 , and the first fixing mechanism 320 and the second fixing mechanism 330 are respectively disposed on two sides of the fixture body 10 .
[0042] Specifically, the first fixing mechanism 320 and the second fixing mechanism 330 are symmetrically arranged and interconnected by a connecting column. The limiting columns 312 on the first fixing mechanism 320 and the second fixing mechanism 330 extend in opposite directions. The first fixing mechanism 320 and the second fixing mechanism 330 can be integrally formed or can be separate structures. This structure can reduce the need for repeated production of heat shrink jigs. The limiting columns 312 of the first fixing mechanism 320 and the second fixing mechanism 330 can have different diameters, allowing them to be flipped and used in rotation to meet different usage requirements.
[0043] In one embodiment, the limiting mechanism 20 includes a first limiting mechanism 220 and a second limiting mechanism 230. The first limiting mechanism 220 and the second limiting mechanism 230 are symmetrically arranged on both sides of the fixture body 10. The main body 110 is provided with at least one extending support body 120 that extends vertically between the first limiting mechanism 220 and the second limiting mechanism 230. The support body 120 is used to provide a certain degree of support for the first limiting mechanism 220 and the second limiting mechanism 230.
[0044] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A heat shrink jig for positioning heat shrink tubing, used to limit the position of the heat shrink tubing installed on the wiring harness, characterized in that: Including the fixture body, limiting mechanism, and multiple different fixing mechanisms, The jig body is plate-shaped, the limiting mechanism is arranged perpendicular to the jig body and abuts against one end of the heat shrink tube, and the distance between the limiting mechanism and the jig body is adjustable; The fixing mechanism is detachably arranged on the jig body and can slide on the jig body. The fixing mechanism is provided with a limiting column for positioning the wiring harness.
2. The heat shrink jig according to claim 1, characterized in that: The jig body includes a main body and support bodies arranged on both sides of the main body, and an elongated hole is provided on the support body along the sliding direction of the fixing mechanism. The fixing mechanism includes a fixing body and mounting bodies arranged on both sides of the fixing body, and mounting holes are provided on the mounting bodies. The fixing mechanism can be slid on the jig body by passing a bolt structure through the mounting holes and the elongated holes.
3. The heat shrink jig according to claim 2, characterized in that: By tightening the bolt structure, the relative positions of the fixing mechanism and the fixture body can be fixed.
4. The heat shrink jig according to claim 2, characterized in that: A plurality of fixed arms arranged at intervals extend from the same side of the fixed body, and the limiting columns are perpendicularly arranged at the free ends of the fixed arms.
5. The heat shrink jig according to claim 4, characterized in that: At least one fixing rib vertically extends from the limiting mechanism, and the fixing rib is arranged between the main body and the fixing body and is located between two adjacent fixing arms.
6. The heat shrink jig according to claim 5, characterized in that: A slot is provided on the fixing rib along the sliding direction of the fixing mechanism, and a positioning column is provided on the main board body. When the fixing rib is located between the main board body and the fixing body, the positioning column is located in the slot, and the limiting mechanism can adjust the distance between it and the fixture body along the slot.
7. The heat shrink jig according to claim 6, characterized in that: It also includes a plurality of fixing columns, which are sleeved on the limiting columns.
8. The heat shrink jig according to claim 6, characterized in that: The fixing mechanism includes a first fixing mechanism and a second fixing mechanism, and the first fixing mechanism and the second fixing mechanism are respectively arranged on two sides of the fixture body.
9. The heat shrink jig according to claim 8, characterized in that: The first fixing mechanism and the second fixing mechanism are symmetrically arranged and connected to each other via a connecting column. The limiting columns on the first fixing mechanism and the second fixing mechanism extend in opposite directions.
10. The heat shrink jig according to claim 8, characterized in that: The limiting mechanism includes a first limiting mechanism and a second limiting mechanism, the first limiting mechanism and the second limiting mechanism are arranged on both sides of the fixture body and are symmetrical to each other, and at least one protruding support body extending vertically to between the first limiting mechanism and the second limiting mechanism is provided on the main body.