Straight-to-rotation action bending die for clamp special machine

Abstract

This utility model relates to the field of clamp bending technology, and discloses a clamp-specific machine for linear-to-rotary bending, comprising: a fixed base, a processing table fixed on the fixed base, a second slide rail fixed on the upper surface of the fixed base, a drive slide block sliding on the outside of the second slide rail, a drive plate fixed on the upper surface of the drive slide block, a fixed shaft fixed on the processing table, a drive swing arm rotating on the outer wall of the fixed shaft, a processing tool mounted on one end of the drive swing arm, and an installation groove formed inside the drive swing arm, with the outer wall of the processing tool engaging inside the installation groove. By employing a composite transmission mechanism of drive swing arm, drive bearing, and drive plate, the precise conversion of linear motion into rotary bending action is achieved, fundamentally solving the problem of excessively high tool advance and retraction frequency caused by tool interference. Through motion trajectory reconstruction, the processing tool completes full-angle bending in the non-interference region, significantly improving processing continuity.

Description

Technical Field

[0001] This utility model relates to the field of clamp bending technology, specifically a clamp bending die with linear and rotary motion. Background Technology

[0002] As a core fastening component in industrial pipeline systems, the bending quality of clamps directly affects the reliability of the entire sealing assembly. As pipeline systems develop towards higher pressure and higher sealing performance, the uneven distribution of deformation stress caused by traditional bending processes has become increasingly prominent. This not only leads to meshing deviations during clamp assembly but may also cause fatigue fracture risks during use. Therefore, developing new precision bending equipment has become an inevitable choice for industry upgrading.

[0003] While existing spring coiling machines possess continuous production capabilities, their limited circular coiling process results in defects such as unnatural arc transitions and large cumulative errors in bending angles. Although the multi-station stamping mode of computer-controlled buckle forming machines can improve accuracy to some extent, their complex servo linkage system leads to a large footprint, and the toolpath planning has spatial interference blind spots, necessitating frequent feed interruptions for obstacle avoidance during processing, severely disrupting production continuity.

[0004] Traditional equipment lacks the flexibility to adjust to different pipe diameters, and fixed guiding mechanisms make material switching time-consuming and labor-intensive. More importantly, existing technologies have failed to establish an effective bending stress control mechanism, and the material springback differences caused by single-point impact processing are difficult to eliminate, often requiring subsequent manual straightening processes to improve accuracy. This extensive processing mode has become a major obstacle restricting the industry's transformation towards intelligent manufacturing. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a linear-rotation bending die for a clamping machine, which solves the problems of redundant tool advance and retraction movements, material springback stress imbalance, and insufficient equipment flexibility caused by tool space interference in traditional clamping bending processes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a linear-rotation bending die for a clamping machine, comprising: a fixed base, a processing table fixed on the fixed base, a second slide rail fixed on the upper surface of the fixed base, a drive slide block sliding on the outside of the second slide rail, a drive plate fixed on the upper surface of the drive slide block, a fixed shaft fixed on the processing table, a drive swing arm rotating on the outer wall of the fixed shaft, a processing tool mounted on one end of the drive swing arm, an installation groove formed inside the drive swing arm, the outer wall of the processing tool engaging inside the installation groove, a drive bearing fixed on the upper surface of the drive swing arm, and the outer wall of the drive bearing sliding inside the drive plate.

[0007] Preferably, a slide rail is fixed to the lower surface of the fixed base, and a fixed plate slides on the outer wall of the slide rail.

[0008] Preferably, the upper surface of the fixed plate is provided with multiple guide rollers, the outer wall of the fixed plate is provided with a guide plate, the outer wall of the guide plate is fixed on the fixed seat, and the guide plate and guide rollers are used for transporting and limiting the clamp material.

[0009] Preferably, the fixing seat is equipped with a right-side square cutting tool for processing the clamp material.

[0010] Preferably, the fixing base is equipped with a lower square cutter position and an auxiliary square cutter position for assisting in the processing of the clamp material.

[0011] Preferably, the drive arm converts the linear motion of the drive slide into the rotational motion of the drive arm through the sliding engagement of the drive bearing and the drive plate.

[0012] Preferably, the sliding engagement between the slide rail and the fixed plate constitutes a raw material conveying reference surface adjustment mechanism.

[0013] Preferably, the inner side of the guide plate is provided with a limiting groove corresponding to the guide roller, forming a transverse positioning structure for the clamping material.

[0014] Preferably, the machining planes of the right-side square tool position, the lower-side square tool position, and the auxiliary square tool position are arranged perpendicular to each other.

[0015] Preferably, the drive plate is provided with a waist-shaped hole that matches the outer diameter of the drive bearing, forming a transmission interface for linear-rotational motion conversion.

[0016] This utility model provides a bending die for a clamp-making machine with linear and rotary motion. It has the following beneficial effects:

[0017] 1. This utility model achieves precise conversion of linear motion into rotary bending action by adopting a composite transmission mechanism of drive arm, drive bearing and drive plate. Compared with the complex structure of existing technology that relies on multi-axis servo drive, it breaks through the problem of excessive tool advance and retraction frequency caused by tool interference. Through motion trajectory reconstruction, the machining tool can complete full-angle bending in the non-interference area, which significantly improves the continuity of machining.

[0018] 2. The synergistic effect of the right-side square tool position, the lower square tool position, and the auxiliary square tool position of this utility model forms a multi-dimensional force application path processing system. Compared with the traditional single-tool position stamping forming scheme, it effectively overcomes the defect of uneven material springback control. The three-dimensional tool position layout realizes the vector decomposition of bending stress, ensuring the stability of the product forming dimensions.

[0019] 3. The dynamic adjustment function established by the cooperation between the slide rail, the fixed plate and the guide roller of this utility model creatively solves the limitation of traditional equipment that cannot adapt to multiple specifications of products compared with the fixed material conveying mechanism. Through the integrated design of adaptive adjustment of the reference surface and lateral limit, the processing flexibility of the equipment is expanded while ensuring the feeding accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the fixing base part of this utility model;

[0021] Figure 2 This is a schematic diagram of the drive slide portion of this utility model;

[0022] Figure 3 This is a schematic diagram of the drive swing arm part of this utility model.

[0023] The components are as follows: 1. Fixed seat; 2. Slide rail one; 3. Fixed plate; 4. Guide roller; 5. Processing table; 6. Clamping material; 7. Guide plate; 8. Slide rail two; 9. Drive slide; 10. Drive plate; 11. Drive swing arm; 12. Fixed shaft; 13. Mounting groove; 14. Drive bearing; 15. Processing tool; 16. Right square tool position; 17. Lower square tool position; 18. Auxiliary square tool position. Detailed Implementation

[0024] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Please see the appendix Figure 1 -Appendix Figure 3This utility model provides a linear-rotation bending die for a clamping machine, comprising: a fixed base 1, a processing table 5 fixed on the fixed base 1, a slide rail 8 fixed on the upper surface of the fixed base 1, a drive slide 9 sliding on the outside of the slide rail 8, a drive plate 10 fixed on the upper surface of the drive slide 9, a fixed shaft 12 fixed on the processing table 5, a drive swing arm 11 rotatably mounted on the outer wall of the fixed shaft 12, a processing tool 15 mounted on one end of the drive swing arm 11, an installation groove 13 formed inside the drive swing arm 11, the outer wall of the processing tool 15 engaging inside the installation groove 13, and the upper surface of the drive swing arm 11 being fixed. There is a drive bearing 14, the outer wall of which slides inside the drive plate 10. The lower surface of the fixed base 1 is fixed with a slide rail 2, the outer wall of which is fixed with a fixed plate 3. The upper surface of the fixed plate 3 is rotated with multiple guide rollers 4. The outer wall of the fixed plate 3 is provided with a guide plate 7, which is fixed to the fixed base 1. The guide plate 7 and the guide rollers 4 are used to transport and limit the clamp material 6. The fixed base 1 is equipped with a right square cutter position 16 for processing the clamp material 6. The fixed base 1 is also equipped with a lower square cutter position 17 and an auxiliary square cutter position 18 for processing the clamp material 6.

[0026] Specifically, by driving the slide block 9 to reciprocate linearly along the slide rail 2 8, the linear mechanical energy is converted into the rotational kinetic energy of the drive arm 11 around the fixed axis 12 through the sliding contact between the drive plate 10 and the drive bearing 14. The machining tool 15 in the mounting groove 13 at the end of the drive arm 11 completes a precise bending action within a non-interference trajectory. The synergistic action of the guide roller 4 and the guide plate 7 ensures the stable conveying of the clamp material 6 on the reference surface adjusted by the slide rail 2. The right square tool position 16, the lower square tool position 17, and the auxiliary square tool position 18 achieve complex bending through the synergistic cooperation of multi-dimensional machining planes. The continuous forming process of bending; its innovative motion conversion mechanism effectively eliminates 78% of the feed and retraction stroke in traditional processing, controls the material springback within the accuracy threshold of 0.15mm, improves the total length tolerance of the product to ±0.05mm, shortens the processing cycle to 2 seconds / piece and extends the tool life by 30%, the adjustable layout of the guide roller 4 adapts to the flexible production needs of different specifications of raw materials, the design of the drive bearing 14 and the waist-shaped hole transmission interface enables the swing arm system to have a self-compensating wear clearance function, and the overall structure realizes the process integration of spring machine and stamping machine through modular tool position configuration.

[0027] Please see the appendix Figure 1 -Appendix Figure 3The drive arm 11 converts the linear motion of the drive slide block 9 into the rotational motion of the arm through the sliding engagement of the drive bearing 14 and the drive plate 10. The sliding engagement of the slide rail 12 and the fixed plate 3 constitutes the raw material conveying reference surface adjustment mechanism. The inner side of the guide plate 7 is provided with a limiting groove corresponding to the guide roller 4, forming a transverse positioning structure for clamping the raw material 6. The processing planes of the right square knife position 16, the lower square knife position 17 and the auxiliary square knife position 18 are arranged perpendicular to each other. The drive plate 10 is provided with a waist-shaped hole that matches the outer diameter of the drive bearing 14, forming a transmission interface for linear-rotational motion conversion.

[0028] Specifically, the reference surface adjustment mechanism of slide rail 12 and fixed plate 3, combined with the limiting groove of guide roller 4, forms a flexible guiding system for material conveying, which can dynamically adapt to the processing requirements of different specifications of clamp material 6; the three-dimensional processing layout of right square tool position 16, lower square tool position 17 and auxiliary square tool position 18 controls the plastic deformation of the material through multi-dimensional force application paths, and drives the asymmetric motion trajectory of swing arm 11 to enable the processing tool 15 to complete the precise bending action in the non-interference area. The lateral positioning structure of guide plate 7 effectively suppresses the processing error caused by material deviation. The overall system significantly improves processing stability through modular transmission and multi-station collaboration, while reducing tool wear rate and equipment maintenance costs, and realizing high-efficiency, low-energy continuous production.

[0029] Working principle: The clamp material 6 is transversely positioned and conveyed by the guide roller 4 on the fixed plate 3 and the limiting groove of the guide plate 7. When the drive slide 9 moves linearly along the slide rail 2 8, it drives the drive plate 10 to move. The waist-shaped hole of the drive plate 10 and the drive bearing 14 fixed on the upper surface of the drive swing arm 11 form a sliding fit, converting the linear motion into the rotational motion of the drive swing arm 11 around the fixed shaft 12. The machining tool 15 installed in the mounting groove 13 at the end of the drive swing arm 11 then rotates and bends. At the same time, the right square tool position 16, the lower square tool position 17 and the auxiliary square tool position 18 work together to complete multi-station forming in the mutually perpendicular machining plane. The sliding fit between the slide rail 1 2 and the fixed plate 3 adjusts the material conveying reference plane. The fixed shaft 12 on the machining table 5 limits the rotation center of the drive swing arm 11. Through the linear-rotational motion conversion mechanism, the machining tool 15 completes the bending process in the non-interference area, eliminating the interference of the tool advance and retraction action in traditional machining.

[0030] 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 for a clamp-making machine with linear and rotary motion, characterized in that, include: A fixed base (1) is provided, on which a processing table (5) is fixed. A slide rail (8) is fixed on the upper surface of the fixed base (1). A drive slide (9) slides on the outside of the slide rail (8). A drive plate (10) is fixed on the upper surface of the drive slide (9). A fixed shaft (12) is fixed on the processing table (5). A drive swing arm (11) rotates on the outer wall of the fixed shaft (12). A processing tool (15) is installed at one end of the drive swing arm (11). An installation groove (13) is provided inside the drive swing arm (11). The outer wall of the processing tool (15) is engaged inside the installation groove (13). A drive bearing (14) is fixed on the upper surface of the drive swing arm (11). The outer wall of the drive bearing (14) slides inside the drive plate (10).

2. The bending die for a clamp-type machine with linear and rotary motion according to claim 1, characterized in that, The lower surface of the fixed base (1) is fixed with a slide rail (2), and a fixed plate (3) slides on the outer wall of the slide rail (2).

3. The linear-rotation bending die for a clamp-making machine according to claim 2, characterized in that, The upper surface of the fixed plate (3) has multiple guide rollers (4) rotating on it. The outer wall of the fixed plate (3) is provided with a guide plate (7). The outer wall of the guide plate (7) is fixed on the fixed seat (1). The guide plate (7) and the guide rollers (4) are used to transport and limit the clamp material (6).

4. The linear-rotation bending die for a clamp-making machine according to claim 1, characterized in that, The fixing seat (1) is equipped with a right-side square cutter position (16) for processing the clamp material (6).

5. A bending die for a clamp-type machine with linear and rotary motion according to claim 1, characterized in that, The fixed base (1) is equipped with a lower square cutter position (17) and an auxiliary square cutter position (18) for processing the clamp raw material (6).

6. The bending die for a clamp-type machine with linear and rotary motion according to claim 1, characterized in that, The drive arm (11) converts the linear motion of the drive slide block (9) into the rotational motion of the arm through the sliding engagement between the drive bearing (14) and the drive plate (10).

7. A bending die for a clamp-type machine with linear and rotary motion according to claim 2, characterized in that, The sliding fit between the slide rail (2) and the fixed plate (3) constitutes a raw material conveying reference surface adjustment mechanism.

8. A bending die for a clamp-type machine with linear and rotary motion according to claim 3, characterized in that, The guide plate (7) has a limiting groove on its inner side that corresponds to the guide roller (4), forming a transverse positioning structure for the clamp material (6).

9. A bending die for a clamp-type machine with linear and rotary motion according to claim 4, characterized in that, The machining planes of the right square tool position (16), the lower square tool position (17), and the auxiliary square tool position (18) are arranged perpendicular to each other.

10. A bending die for a clamp-type machine with linear and rotary motion according to claim 1, characterized in that, The drive plate (10) is provided with a waist-shaped hole that matches the outer diameter of the drive bearing (14), forming a transmission interface for linear-rotational motion conversion.

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