Manual spring bending device
By manually operating the spring bending device of the eccentric wheel mechanism, the problems of complex and high cost of arc spring manufacturing process are solved, and arc spring production with low cost and flexible control of bending without affecting production line is achieved.
Patent Information
- Application Number
- CN202420686870.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The manufacturing process of arc springs is complex and requires automated equipment and special molds, which leads to high sample trial production costs and affects normal production line production.
A manual bending device including a workbench, substrate, a pin and an eccentric wheel mechanism is designed. By manually operating the eccentric wheel mechanism, the bending and plastic deformation of the spring are achieved, avoiding dependence on automation equipment and molds.
It reduces the sample trial production cost, simplifies the production process, improves adaptability, and can manually control the bending degree without affecting the normal production of the production line to produce arc springs that meet the design.
Smart Images
Figure CN222326348U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a spring bending device, in particular to a manual spring bending device. Background Art
[0002] Arc springs are widely used in dual-mass flywheels and clutch systems due to their unique structural characteristics. The manufacturing process of arc springs is complex and requires the use of automated production equipment and special molds to bend and cold-roll the raw materials into the required arc springs. In the process of trial production of arc springs, the production process has caused limitations, and special molds need to be manufactured. The cost of sample trial production is high, and the spring bending process needs to be debugged on the automated production equipment, which affects the normal production line production.
[0003] Therefore, the above problems need to be solved urgently. Utility Model Content
[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides a manual spring bending device.
[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a manual spring bending device, including a workbench, a base plate, a push rod, and an eccentric wheel mechanism. One end of the base plate is arranged on the upper side of the workbench and fixedly connected to the workbench. The base plate is arranged on the upper side of the workbench and is provided with a limit column at one end, and the limit column is connected to the base plate. An upper sliding block and a lower sliding block are arranged on the upper side of the base plate, and the upper sliding block and the lower sliding block are fixed to the side of the limit column away from the workbench. The push rod is arranged on the upper side of the base plate, and the push rod is arranged between the upper sliding block and the lower sliding block. The push rod and the limit column keep a distance, and the push rod slides along the upper sliding block and the lower sliding block. The eccentric wheel mechanism is arranged at one end of the push rod away from the limit column, the eccentric wheel mechanism is movably connected to the base plate shaft, the eccentric wheel mechanism and the push rod are in conflict, and the eccentric wheel mechanism rotates to apply thrust to the push rod. When working, the spring to be formed is placed between the limit column and the push rod, and the spring is against the limit column. Rotate the eccentric wheel mechanism, and the eccentric wheel mechanism rotates to push the push rod to move along the upper sliding block and the lower sliding block toward the limit column. Manually adjust the spring so that the push rod is pressed between the two spring coils. Continue to rotate the eccentric wheel mechanism, and the spring rests on the limit column. The push rod separates the adjacent spring coil part that is in contact with it, and the spring coil part away from the push rod undergoes plastic deformation, and the spring bends. Rotate the eccentric wheel mechanism in the opposite direction, withdraw the push rod, move the spring, and repeat the above steps for the other spring coils of the spring to deform the spring and process it into an arc spring. During the processing of the spring, the plastic deformation between the spring coils can be manually controlled throughout the process according to the design requirements to obtain an arc spring with a curvature that meets the design. The utility model has a simple design structure, does not rely on special molds, and does not require the use of production equipment to bend the spring. Arc springs can be made without affecting the normal production of the production line, which greatly reduces the cost of sample trial production, and the curvature of the spring can be manually controlled, with high adaptability.
[0006] Furthermore, in the above-mentioned manual spring bending device, the eccentric wheel mechanism includes an eccentric wheel and an operating rod. The eccentric wheel is provided with a first groove, one end of the operating rod is arranged in the first groove, the operating rod and the eccentric wheel are fixedly connected, and the eccentric wheel is provided with an eccentric hole, the eccentric hole is not arranged at the center of the circle, and the eccentric hole is arranged on the side of the eccentric wheel close to the push rod. The eccentric hole is a through hole, and a screw hole corresponding to the eccentric hole is provided at one end of the substrate away from the workbench, and the screw passes through the eccentric hole and is screwed into the above-mentioned screw hole. When the operating rod is bent, the eccentric wheel rotates around the eccentric hole, and the eccentric wheel is displaced around the eccentric wheel, thereby pushing the push rod to slide. The distance from the position where the operating rod is held to the eccentric hole is much greater than the distance from the eccentric hole to the contact position between the eccentric wheel and the push rod, so that a lever effect occurs, which amplifies the manual operating force and makes the operation more labor-saving.
[0007] Furthermore, in the above-mentioned manual spring bending device, the upper sliding block is provided with an upper limit step, which is provided on the side of the upper sliding block close to the lower sliding block, and is provided on the upper side of the push rod. The lower sliding block is provided with a lower limit step, which is provided on the side of the lower sliding block close to the upper sliding block, and is provided on the upper side of the push rod. The upper limit step and the lower limit step limit the push rod, and the push rod slides along the upper limit step and the lower limit step.
[0008] Furthermore, in the above-mentioned manual spring bending device, the push rod includes a tip and a tail, the tail is semicircular, the tail is in contact with the eccentric mechanism, and the eccentric mechanism rotates to apply thrust to the tail. The cross section of the tip is triangular. The eccentric mechanism rotates to push the push rod, and the tail in contact with the eccentric mechanism is circular, so that the contact surface between the push rod and the eccentric mechanism is larger, and the push rod is subjected to a linear thrust from the eccentric mechanism. The tip is triangular, which can be more easily inserted between the spring coils, and moves with the push rod, and the distance between the spring coils gradually increases. By controlling the moving distance of the tip of the triangle, the separation distance of the spring coils can be easily controlled, and then the bending curvature of the spring can be controlled.
[0009] Furthermore, in the above-mentioned manual spring bending device, the center extension lines of the limit column and the push rod intersect.
[0010] Furthermore, in the above-mentioned manual spring bending device, one end of the limiting column is a screw, and the base plate is provided with a threaded hole adapted to the limiting column, and the limiting column is screwed into the above-mentioned threaded hole.
[0011] Furthermore, in the above-mentioned manual spring bending device, a first base block and a second base block are arranged on the upper side of the base plate, the first base block and the second base block are arranged in parallel, the first base block, the second base block and the base plate are fixedly connected, and the upper sliding block and the lower sliding block are perpendicular to the first base block. The upper sliding block and the lower sliding block are arranged in parallel on the upper side of the first base block and the second base block, and the upper sliding block, the lower sliding block and the first base block and the second base block are fixedly connected in a tic-tac-toe shape.
[0012] Furthermore, in the above-mentioned manual spring bending device, a second groove adapted to the shape of the substrate is provided at the connection between the workbench and the substrate, the substrate is arranged in the second groove, and the workbench and the substrate are fixedly connected.
[0013] Furthermore, in the above-mentioned manual spring bending device, the operating rod is in the shape of an elongated strip.
[0014] It can be seen from the above technical scheme that the utility model has the following beneficial effects: the manual spring bending device of the utility model can manually control the plastic deformation between the spring coils according to the design requirements during the processing of the spring, so as to obtain an arc spring with a curvature that meets the design. The utility model has a simple design structure, does not rely on special molds, and can bend springs without using production equipment. It can make arc springs without affecting the normal production of the production line, greatly reducing the cost of sample trial production, and can manually control the curvature of the spring, with high adaptability. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the manual spring bending device of the utility model;
[0016] Figure 2 This is a schematic diagram of the eccentric wheel structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the upper sliding block of the utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the lower sliding block of the utility model;
[0019] Figure 5 This is a schematic diagram of the top rod structure of the utility model;
[0020] Figure 6 This is a schematic diagram of the workbench structure of the utility model.
[0021] In the figure: 1, workbench, 11, second groove, 2, base plate, 21, limit column, 3, push rod, 31, upper sliding block, 311, upper limit step, 32, lower sliding block, 321, lower limit step, 33, top, 34, tail, 35, first base block, 36, second base block, 4, eccentric wheel mechanism, 41, eccentric wheel, 411, first groove, 412, eccentric hole, 42, operating rod. DETAILED DESCRIPTION
[0022] Example 1
[0023] like Figure 1-2A manual spring bending device shown in the figure comprises a workbench 1, a base plate 2, a push rod 3, and an eccentric wheel mechanism 4. One end of the base plate 2 is arranged on the upper side of the workbench 1 and is fixedly connected to the workbench 1. The base plate 2 is arranged on the upper side of the workbench 1 and is provided with a limit column 21. One end of the limit column 21 is a screw. The base plate 2 is provided with a threaded hole adapted to the limit column 21, and the limit column 21 is screwed into the above-mentioned threaded hole. A first base block 35 and a second base block 36 are arranged on the upper side of the base plate 2. The first base block 35 and the second base block 36 are arranged in parallel. The first base block 35 and the second base block 36 are fixedly connected to the base plate 2. The upper sliding block 31 and the lower sliding block 32 are perpendicular to the first base block 35. The upper sliding block 31 and the lower sliding block 32 are arranged in parallel on the upper side of the first base block 35 and the second base block 36. The upper sliding block 31, the lower sliding block 32 and the first base block 35 and the second base block 36 are fixedly connected in a tic-tac-toe shape. The upper sliding block 31 and the lower sliding block 32 are arranged in parallel, and the upper sliding block 31 and the lower sliding block 32 are fixed to the side of the limiting column 21 away from the workbench 1. The push rod 3 is arranged on the upper side of the base plate 2, and the push rod 3 is arranged between the upper sliding block 31 and the lower sliding block 32. The push rod 3 and the limiting column 21 keep a distance, and the center extension lines of the limiting column 21 and the push rod 3 intersect, and the push rod 3 slides along the upper sliding block 31 and the lower sliding block 32. The eccentric wheel mechanism 4 is arranged at the end of the push rod 3 away from the limiting column 21, and the eccentric wheel mechanism 4 includes an eccentric wheel 41 and an operating rod 42. The operating rod 42 is long and strip-shaped. The eccentric wheel 41 is provided with a first groove 411, and one end of the operating rod 42 is arranged in the first groove 411. The operating rod 42 and the eccentric wheel 41 are fixedly connected, and the eccentric wheel 41 is provided with an eccentric hole 412, and the eccentric hole 412 is not arranged at the center of the circle, and the eccentric hole 412 is arranged on the side of the eccentric wheel 41 close to the push rod 3. The eccentric hole 412 is a through hole, and a screw hole corresponding to the eccentric hole 412 is provided at one end of the substrate 2 away from the workbench 1, and the screw passes through the eccentric hole 412 and is screwed into the above-mentioned screw hole. The eccentric wheel 41 and the push rod 3 are in conflict, and the operating rod 42 is moved, and the eccentric wheel 41 rotates around the eccentric hole 412, and the eccentric wheel 41 is displaced around the eccentric wheel 41, thereby pushing the push rod 3 to slide. During operation, the spring to be formed is placed between the limit column 21 and the push rod 3, and the spring is against the limit column 21. The eccentric wheel mechanism 4 is rotated, and the eccentric wheel mechanism 4 rotates to push the push rod 3 to move toward the limit column 21 along the upper sliding block 31 and the lower sliding block 32. The spring is manually adjusted so that the push rod 3 is pressed between the two spring coils, and the eccentric wheel mechanism 4 is continuously rotated. The spring is pressed against the limit column 2, and the push rod 3 separates the adjacent spring coils in contact with it, and the spring coils away from the push rod 3 are plastically deformed, and the spring is bent. The eccentric wheel mechanism 4 is rotated in the opposite direction to move the spring, and the above steps are repeated for other adjacent spring coils of the spring to partially separate two adjacent spring coils and process the spring into an arc spring.
[0024] like Figure 3-4In the manual spring bending device shown in the figure, the upper sliding block 31 is provided with an upper limit step 311, which is provided on the side of the upper sliding block 31 close to the lower sliding block 32, and is provided on the upper side of the push rod 3. The lower sliding block 32 is provided with a lower limit step 321, which is provided on the side of the lower sliding block 32 close to the upper sliding block 31, and is provided on the upper side of the push rod 3. The upper limit step 311 and the lower limit step 321 limit the push rod 3, and the push rod 3 slides along the upper limit step 311 and the lower limit step 321.
[0025] like Figure 5 A manual spring bending device is shown, wherein the push rod 3 includes a tip 33 and a tail 34, wherein the tail 34 is semicircular, and the tail 34 contacts the eccentric mechanism 4, and the eccentric mechanism 4 rotates to apply a thrust to the tail 34. The tip 33 has a triangular cross section. The eccentric mechanism 4 rotates to push the push rod 3, and the tail 34 where the push rod 3 and the eccentric mechanism 4 contact is circular, so that the contact surface between the push rod 3 and the eccentric mechanism 4 is larger, and the push rod 3 is subjected to a linear thrust from the eccentric mechanism 4. The tip 33 is triangular, so that it can be more easily inserted between the spring coils, and as the push rod 3 moves, the distance between the spring coils gradually increases.
[0026] like Figure 6 A manual spring bending device is shown, in which a second groove 11 adapted to the shape of the substrate 2 is provided at the connection between the workbench 1 and the substrate 2, the depth of the second groove 11 is equal to the thickness of the substrate 2, the substrate 2 is arranged in the second groove 11, and the workbench 1 and the substrate 2 are fixedly connected.
[0027] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with this field can understand the content of the utility model and implement it accordingly, and they cannot limit the protection scope of the utility model in turn. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A manual spring bending device, characterized in that: The invention comprises a workbench (1), a base plate (2), a push rod (3), and an eccentric wheel mechanism (4); one end of the base plate (2) is arranged on the upper side of the workbench (1) and is fixedly connected to the workbench (1); one end of the base plate (2) is arranged on the upper side of the workbench (1) and is provided with a limit column (21); the limit column (21) is connected to the base plate (2); an upper sliding block (31) and a lower sliding block (32) are arranged on the upper side of the base plate (2); the upper sliding block (31) and the lower sliding block (32) are fixed in parallel to the upper side of the base plate (2); the upper sliding block (31) and the lower sliding block (32) are fixed to the limit column (21) ) away from the workbench (1); the push rod (3) is arranged on the upper side of the base plate (2), the push rod (3) is arranged between the upper sliding block (31) and the lower sliding block (32), the push rod (3) and the limiting column (21) maintain a distance, and the push rod (3) slides along the upper sliding block (31) and the lower sliding block (32); the eccentric wheel mechanism (4) is arranged at the end of the push rod (3) away from the limiting column (21), the eccentric wheel mechanism (4) and the base plate (2) are axially connected, the eccentric wheel mechanism (4) and the push rod (3) are in contact, and the eccentric wheel mechanism (4) rotates to apply a thrust to the push rod (3).
2. The manual spring bending device according to claim 1, characterized in that: The eccentric wheel mechanism (4) comprises an eccentric wheel (41) and an operating rod (42); the eccentric wheel (41) is provided with a first groove (411), one end of the operating rod (42) is arranged in the first groove (411), the operating rod (42) and the eccentric wheel (41) are fixedly connected, the eccentric wheel (41) is provided with an eccentric hole (412), and the eccentric hole (412) is arranged on a side of the eccentric wheel (41) close to the top rod (3); the eccentric hole (412) is a through hole, and a screw hole corresponding to the eccentric hole (412) is provided at one end of the base plate (2) away from the workbench (1), and a screw passes through the eccentric hole (412) and is screwed into the screw hole.
3. The manual spring bending device according to claim 1, characterized in that: The upper sliding block (31) is provided with an upper limit step (311), the upper limit step (311) being provided on a side of the upper sliding block (31) close to the lower sliding block (32), and the upper limit step (311) being provided on the upper side of the push rod (3); the lower sliding block (32) is provided with a lower limit step (321), the lower limit step (321) being provided on a side of the lower sliding block (32) close to the upper sliding block (31), and the lower limit step (321) being provided on the upper side of the push rod (3); the upper limit step (311) and the lower limit step (321) limit the push rod (3), and the push rod (3) slides along the upper limit step (311) and the lower limit step (321).
4. The manual spring bending device according to claim 1, characterized in that: The push rod (3) comprises a tip (33) and a tail (34); the tail (34) is semicircular, the tail (34) is in contact with an eccentric wheel mechanism (4), and the eccentric wheel mechanism (4) rotates to apply a thrust to the tail (34); the tip (33) has a triangular cross-section.
5. The manual spring bending device according to claim 1, characterized in that: The limit column (21) and the center extension line of the push rod (3) intersect.
6. The manual spring bending device according to claim 1, characterized in that: One end of the limiting column (21) is a screw, and the base plate (2) is provided with a threaded hole adapted to the limiting column (21), and the limiting column (21) is screwed into the threaded hole.
7. The manual spring bending device according to claim 1, characterized in that: A first base block (35) and a second base block (36) are provided on the upper side of the base plate (2); the first base block (35) and the second base block (36) are arranged in parallel; the first base block (35), the second base block (36) and the base plate (2) are fixedly connected; the upper sliding block (31) and the lower sliding block (32) are perpendicular to the first base block (35); the upper sliding block (31) and the lower sliding block (32) are arranged in parallel on the upper sides of the first base block (35) and the second base block (36); the upper sliding block (31), the lower sliding block (32) and the first base block (35) and the second base block (36) are fixedly connected in a tic-tac-toe shape.
8. The manual spring bending device according to claim 1, characterized in that: A second groove (11) adapted to the outer shape of the substrate (2) is provided at the connection between the workbench (1) and the substrate (2); the substrate (2) is arranged in the second groove (11); and the workbench (1) and the substrate (2) are fixedly connected.
9. The manual spring bending device according to claim 2, characterized in that: The operating rod (42) is in the shape of a long strip.