Bending die structure of tubular joint
By designing the bending die structure for the tubular joint and utilizing the cooperation between the floating insert and the upper die pre-pressing insert, the problems of long production time and high cost were solved, achieving efficient mass production and dimensional control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI QINGCANG ELECTRIC TECH CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, the production process of pipe fittings is time-consuming, costly, and difficult to control in terms of size, which cannot meet the needs of customer orders.
A bending die structure for a tubular joint was designed, including a base, a bending pad, a floating insert, a positioning block, a top seat, and a bending punch. The floating insert and the upper die pre-pressing insert work together to ensure that the product does not move during the bending process, thus enabling mass production.
It improved production efficiency, reduced labor costs, and ensured the pass rate of product dimensions.
Smart Images

Figure CN224222417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold manufacturing technology, specifically to a bending mold structure for a tubular joint. Background Technology
[0002] With the development of modern society, automobiles have become an indispensable means of transportation for every household. In automobile manufacturing, it is inevitable to encounter workpieces that need to be bent. Previously, production relied on manual bending, which was time-consuming, costly, and difficult to control in terms of size, and could not meet customer order requirements.
[0003] To solve the above problems, we urgently need a bending die structure for tubular joints. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a bending die structure for tubular joints, thereby solving the problems mentioned in the background art, such as the reliance on manual wrenches in existing product manufacturing, which is time-consuming, has high production costs, and is difficult to control in terms of dimensions, thus failing to meet customer order requirements.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a bending die structure for a tubular joint, comprising a base, a bending pad fixedly mounted on the upper outer surface of the base, a floating insert disposed inside the bending pad, a positioning block disposed on the upper outer surface of the bending pad, a top seat disposed on the upper side of the bending pad, an upper die pre-pressing insert fixedly mounted on the lower outer surface of the top seat, and a bending punch disposed on the lower outer surface of the top seat, with the product movably fitted to the outer surface of the bending punch.
[0006] Preferably, the bending punch is located on the right side of the upper die pre-pressing insert.
[0007] Preferably, the lower outer surface of the upper mold pre-pressing insert is movably fitted with the upper outer surface of the floating insert.
[0008] Compared with the prior art, the beneficial effects of this utility model are:
[0009] The bending die structure of this tubular connector features a bending pad fixedly mounted on the upper outer surface of the base. A floating insert is installed inside the bending pad, and a positioning block is located on the upper outer surface of the bending pad. A top seat is located on the upper side of the bending pad, and an upper die pre-pressing insert is fixedly mounted on the lower outer surface of the top seat. A bending punch is located on the lower outer surface of the top seat, with the product movably fitting against its outer surface. The die incorporates a pre-pressing insert, which, in conjunction with the floating insert, pre-presses the insert after the upper die is pressed down, ensuring the product does not move during punch bending and guaranteeing the product's dimensional accuracy. Furthermore, the production process is transformed from manual to batch production using a die, significantly improving production efficiency and reducing labor costs. Attached Figure Description
[0010] Figure 1 This is a three-dimensional sectional view of the present invention.
[0011] In the diagram: 1. Base; 2. Upper die pre-pressing insert; 3. Bending pad; 4. Floating insert; 5. Bending punch; 6. Positioning block; 7. Product; 8. Top seat. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0013] Referring to Figure 1, in order to solve the problems of the existing product 7 being produced by hand, which is time-consuming, costly, and difficult to control in terms of size, and cannot meet customer order requirements, a bending pad 3 is fixedly installed on the upper outer surface of the base 1. A floating insert 4 is set inside the bending pad 3. A positioning block 6 is set on the upper outer surface of the bending pad 3. A top seat 8 is set on the upper side of the bending pad 3. An upper die pre-pressing insert 2 is fixedly installed on the lower outer surface of the top seat 8. A bending punch 5 is set on the lower outer surface of the top seat 8. The product 7 is movably attached to the outer surface of the bending punch 5.
[0014] Working principle: When using the bending die structure of this tubular connector, the product 7 is placed inside the bending pad 3, so that it is in contact with the outer surface of the bending pad 3. The top of the product 7 is aligned with the positioning block 6. The upper die pre-pressing insert 2 is pressed down by the motor, and the floating insert 4 moves upward. When the bending punch 5 and the bending pad 3 are about to be in contact, the product 7 is fixed and pre-pressed under the action of the floating insert 4 and the upper die pre-pressing insert 2. The fixed position ensures that the product 7 does not move. Then the bending punch 5 is in contact with the surface of the product 7, pressing the product 7 into contact with the bending pad 3 below, thereby completing the bending work.
[0015] Compared with related technologies, the bending die structure for a tubular joint provided by this utility model has the following beneficial effects: it can ensure that the product does not move when the punch is bent during the bending process, thus guaranteeing the product size qualification rate. At the same time, the product is changed from manual production to batch production by die, which greatly improves the production efficiency during the production process and reduces labor costs during the manufacturing process.
[0016] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bending die structure for a tubular joint, comprising a base (1), characterized in that: A bending pad (3) is fixedly installed on the upper outer surface of the base (1). A floating insert (4) is provided inside the bending pad (3). A positioning block (6) is provided on the upper outer surface of the bending pad (3). A top seat (8) is provided on the upper side of the bending pad (3). An upper die pre-pressing insert (2) is fixedly installed on the lower outer surface of the top seat (8). A bending punch (5) is provided on the lower outer surface of the top seat (8). A product (7) is movably attached to the outer surface of the bending punch (5).
2. The bending die structure for a tubular joint according to claim 1, characterized in that: The bending punch (5) is located on the right side of the upper die pre-pressing insert (2).
3. The bending die structure for a tubular joint according to claim 1, characterized in that: The lower outer surface of the upper mold pre-pressing insert (2) is in contact with the upper outer surface of the floating insert (4).
4. The bending die structure for a tubular joint according to claim 1, characterized in that: The bending pad (3) is sized to match the bending punch (5).