U-shaped spring preparation device

Abstract

The utility model provides a U-shaped spring preparation device, and relates to the technical field of spring machining, the U-shaped spring preparation device comprises a die body, a cutter block arranged on one side of the die body and a movable block arranged in the middle of the die body, the middle of the die body is provided with a mounting groove used for arranging the movable block, and the cutter block is arranged in the mounting groove. An elastic piece is arranged at the bottom of the mounting groove so that the movable block can move up and down in the mounting groove, limiting grooves matched with the rod-shaped spring are formed in the top of the die body and the top of the movable block, and arc grooves used for bending the rod-shaped spring are formed in the side walls of the sides, opposite to the movable block, of the mounting groove. Grooves are formed in the two sides of the top of the die body, the cutter block is arranged in the groove in one side, and when the cutter block is arranged in the groove, the top of the cutter block is higher than the top of the die body. According to the U-shaped spring manufacturing device, the problem that in the prior art, the production efficiency of U-shaped springs is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring processing, in particular to a U-shaped spring preparation device. Background Art

[0002] A spring is a mechanical component that utilizes elasticity to function. Parts made of elastic materials deform under external forces and return to their original shape when the force is removed. They are typically made of spring steel. Springs come in a wide variety of shapes, including coil springs, scroll springs, leaf springs, and special-shaped springs. As fundamental components of mechanical equipment, springs are used in many areas of modern industry, particularly in the machinery, railway, construction, and nuclear power industries. The demand for spring devices is increasing, placing high demands on the assembly space and quality of springs.

[0003] Among them, the preparation of U-shaped springs is usually carried out by cutting the rod-shaped springs to obtain the required length, and then the cut springs are transported to the stamping station and manually stamped twice to complete the shaping, which is very labor-intensive and has low work efficiency. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a U-shaped spring preparation device, aiming to solve the problem of low production efficiency of U-shaped springs in the prior art.

[0005] The U-shaped spring preparation device proposed in the present invention includes a mold body, a knife block arranged on one side of the mold body and a movable block arranged in the middle of the mold body, a mounting groove for arranging the movable block is opened in the middle of the mold body, an elastic member is arranged at the bottom of the mounting groove to enable the movable block to move up and down in the mounting groove, the mold body and the top of the movable block are both provided with a limiting groove adapted to the rod-shaped spring, and the side wall on the opposite side of the mounting groove and the movable block is provided with an arc groove for bending the rod-shaped spring to obtain a U-shaped spring.

[0006] The U-shaped spring preparation device is provided with a movable block in the mounting groove of the mold body, and a limiting groove provided on the movable block and the top of the mold body, so that the rod-shaped spring can be placed in the limiting groove, and then the knife edge provided on one side of the mold body makes the upper mold to be squeezed downward by the shear force and the action of the knife edge, and the required cutting length is determined by the length of the limiting groove, thereby realizing the cutting process of the rod-shaped spring, and then the upper mold continues to move downward, so that the upper mold squeezes the movable block and the cut rod-shaped spring into the mounting groove, and due to the arc groove provided on the side wall of the mounting groove, The middle of the rod-shaped spring is directed downward, and both sides of the rod-shaped spring are bent perpendicularly relative to the middle section under the action of the circular arc groove. The rod-shaped spring then moves downward along the circular arc groove, thereby bending the rod-shaped spring into a U-shaped spring, completing the U-shaped spring bending process. The upper die is reset under the action of the driving member, and the movable block is reset under the action of the elastic component, and the automatic U-shaped spring is automatically moved out of the installation groove for automatic unloading. Through this device, the cutting and bending processes of the wheel U-shaped spring can be simultaneously completed in one stamping process, and the transfer step between the two processes is avoided, greatly improving the production efficiency of the U-shaped spring. Therefore, the utility model solves the problem of low production efficiency of U-shaped springs in the prior art.

[0007] In addition, the U-shaped spring preparation device proposed in the present invention may also have the following additional technical features:

[0008] Preferably, grooves are provided on both sides of the top of the mold body, and the blade block is arranged in the groove on one side, and when the blade block is placed in the groove, the top of the blade block is higher than the top of the mold body.

[0009] Preferably, the elastic member is a spring, and a plurality of the elastic members are equidistantly distributed along the length direction of the installation slot.

[0010] Preferably, baffles are provided on both sides of the mold body, and the baffles include a main body and an extension portion extending from one side of the main body into the installation groove, so that the U-shaped spring falls outside the installation groove after being bent.

[0011] Preferably, the cross-sectional area of ​​the main body decreases gradually from the top to the bottom, so that the main body is tilted away from the side of the mold body.

[0012] Preferably, the length of the arc groove is smaller than the length of the limiting groove.

[0013] Preferably, through holes are provided on both sides of the bottom of the main body, and mounting holes adapted to the through holes are provided on the mold body. Fasteners pass through the through holes and adapt to the mounting holes, so that the baffle is fixed on the mold body.

[0014] Preferably, the plurality of mounting holes are equidistantly distributed along the height direction of the mold body.

[0015] Preferably, both sides of the main body are inclined toward one opposite side, so that the outer contour of the main body is an isosceles trapezoid.

[0016] Preferably, the height difference between the blade block and the groove is greater than the diameter of the U-shaped spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a U-shaped spring preparation device according to an embodiment of the present invention from one perspective;

[0018] Figure 2 This is a structural schematic diagram of a U-shaped spring preparation device proposed in one embodiment of the present invention from another perspective;

[0019] Figure 3 for Figure 1 A partial enlarged view of point A.

[0020] Description of main component symbols:

[0021]

[0022]

[0023] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] See also Figures 1 to 3 , shown is a U-shaped spring manufacturing device in an embodiment of the present invention, comprising a mold body 10, a knife block 20 disposed on one side of the mold body 10, and a movable block 30 disposed in the middle of the mold body 10, wherein:

[0028] A mounting groove 11 for setting the movable block 30 is provided in the middle of the mold body 10, and an elastic member 40 is provided at the bottom of the mounting groove 11 to enable the movable block 30 to move up and down in the mounting groove 11. The top of the mold body 10 and the movable block 30 are both provided with a limiting groove 12 adapted to the rod-shaped spring, and the side wall on the opposite side of the mounting groove 11 and the movable block 30 is provided with an arc groove 13 for bending the rod-shaped spring to obtain a U-shaped spring.

[0029] It can be understood that, by setting the movable block 30 in the mounting groove 11 of the mold body 10, and the limiting groove 12 set on the movable block 30 and the top of the mold body 10, the rod-shaped spring can be placed in the limiting groove 12, and then by the knife edge set on one side of the mold body 10, when the upper mold is squeezed downward, the rod-shaped spring will be cut by the shear force and the action of the knife edge, and the required cutting length is determined by the length of the limiting groove 12, thereby realizing the cutting process of the rod-shaped spring, and then the upper mold continues to move downward, so that the upper mold squeezes the movable block 30 and the cut rod-shaped spring into the mounting groove 11, and due to the side wall of the mounting groove 11 The arc groove 13 causes the middle of the rod-shaped spring to face downward, and the two sides of the rod-shaped spring are bent and perpendicular to the middle section under the action of the arc groove 13. Then, the rod-shaped spring moves downward along the arc groove 13, thereby bending the rod-shaped spring into a U-shaped spring, completing the U-shaped spring bending process. The upper die is reset under the action of the driving member, and the movable block 30 is reset under the action of the elastic component, and the automatic U-shaped spring is moved out of the installation groove 11 for automatic unloading. Through this device, the cutting and bending processes of the wheel U-shaped spring can be simultaneously completed in one stamping, and the transfer step between the two processes is avoided, greatly improving the production efficiency of the U-shaped spring. Therefore, the utility model solves the problem of low production efficiency of U-shaped springs in the prior art.

[0030] It should be noted that, for purposes of example and not limitation, in some optional embodiments, the upper die can be an iron block that fits the mounting groove 11 and is connected to a driver. The driver drives the iron block to move downward rapidly, and the rod-shaped spring is limited and fixed by an auxiliary device, so that the rod-shaped spring is subjected to a momentary large impact force and is cut off under the action of the knife block 20. It is then pressed down together with the iron block to move in the mounting groove 11 and is bent under the action of the arc groove 13. In addition, the upper die can also adopt a multi-section stamping structure, one section for stamping and cutting, and the other section for extrusion and bending. The volume of the section used for extrusion and bending is no larger than the volume of the movable block 30, and it can move up and down in the mounting groove 11. Since the upper die is not the main protection point of this case, it is not excessively limited here.

[0031] Specifically, grooves 14 are provided on both sides of the top of the mold body 10, and the blade block 20 is arranged in the groove 14 on one side, and when the blade block 20 is placed in the groove 14, the top of the blade block 20 is higher than the top of the mold body 10. Furthermore, the height difference between the blade block 20 and the groove 14 is greater than the diameter of the U-shaped spring. By providing the groove 14, the blade block 20 is fixed on the mold body 10, and the blade portion of the blade block 20 is provided on the side close to the mounting groove 11. In addition, by setting the height of the blade block 20 to be higher than the height of the top of the high-pressure mold body 10, and the height difference between the two is greater than the diameter of the U-shaped spring, when the upper mold is pressed downward, the straight rod-shaped spring will be quickly sheared, and part of the punching force will not be shared by the mold body 10, affecting the shearing efficiency.

[0032] Furthermore, the elastic members 40 are springs, and multiple elastic members 40 are evenly spaced along the length of the mounting slot 11. By providing multiple evenly spaced springs, when the movable block 30 is impacted by the upper die, the impact force is distributed evenly across the multiple springs, extending the life of the device. Furthermore, by evenly distributing the springs, the resisting force exerted by the springs is evenly distributed, thereby preventing the movable block 30 from deflecting due to uneven force, which could affect the bending effect.

[0033] Specifically, baffles 50 are provided on both sides of the mold body 10. The baffles 50 include a main body 51 and an extension 52 extending from one side of the main body 51 into the mounting groove 11, so that the U-shaped spring falls outside the mounting groove 11 after being bent. In a specific implementation, by providing the baffles 50 and the extension 52 extending from the main body 51 of the baffle 50 into the mounting groove 11, the top plate of the mounting groove 11 is shielded by the baffles 50. Then, after the spring is bent, during the reset and discharge process of the movable block 30, the material is discharged outward from the top of the mold body 10 and will not fall into the bottom of the mounting groove 11 and affect the function of the elastic member 40. Instead, it will be resisted by the baffles 50, thereby ensuring the smooth operation of the internal parts of the mold body 10 and the normal operation of the spring bending function.

[0034] In addition, the cross-sectional area of ​​the main body 51 gradually decreases from the top to the bottom, so that the main body 51 is tilted away from the mold body 10. By tilting one side of the main body 51, after the U-shaped spring is blanked, it can be blanked along the stopper to the two sides of the mold body 10, thereby guiding the blanking of the U-shaped spring. In addition, by providing a blanking box, the U-shaped spring can be automatically blanked and collected.

[0035] Specifically, the length of the arc groove 13 is less than the length of the limiting groove 12. In a specific implementation, the bending of the U-shaped spring is achieved when the movable block 30 moves down a small distance, so that the two ends of the rod-shaped spring are perpendicular to the middle. Subsequently, the movable block 30 continues to move to the lower end, and the arc groove 13 plays a role in fixing the U-shaped spring to avoid local deformation of the U-shaped spring. Therefore, the arc groove 13 does not need to be set too long, which can not only ensure the bending and fixing effect of the U-shaped spring, but also make the displacement required for the movable block 30 to move smaller, thereby speeding up the blanking and bending efficiency. In addition, when the gap between the installation groove 11 and the movable block 30 is too large due to long-term use, there is a small probability that the spring part will be stuck in the gap. Since the length of the arc groove 13 is less than the length of the limiting groove 12, that is, the depth of the arc groove 13 is less than the length of the vertical parts at both ends of the U-shaped spring, the two ends of the U-shaped spring extend out of the arc groove 13, and the extended part can assist the U-shaped spring to escape from the gap, thereby solving this problem.

[0036] In addition, through holes 53 are provided on both sides of the bottom of the main body 51. Mounting holes 16 are provided on the mold body 10 to match the through holes 53. Fasteners 60 pass through the through holes 53 and match the mounting holes 16, thereby securing the baffle 50 to the mold body 10. Furthermore, multiple mounting holes 16 are evenly spaced along the height of the mold body 10. By providing the mounting holes 16 and through holes 53, the baffle is fixed to the mold body 10 via the fasteners 60. Furthermore, this detachable connection and the provision of multiple mounting holes 16 allow the height of the baffle to be adjusted. By controlling the height of the baffle, the distance between the upper mold and the lower mold can be adjusted. Furthermore, the time the U-shaped spring remains in the circular arc groove 13, i.e., the time it takes to bend and solidify in the circular arc groove 13, can be adjusted according to the material of the spring. Different solidification times can be used for springs of different materials, allowing the device to adapt to the efficient production of U-shaped springs of various materials.

[0037] Furthermore, both sides of the main body 51 are tilted toward each other, forming an isosceles trapezoidal outer contour. Furthermore, in practice, the tilted sides of the main body 51 can be used to allow the U-shaped spring to be blanked toward both sides of the main body 51, thereby adjusting the blanking angle and providing a corresponding blanking chute or blanking box according to different blanking requirements.

[0038] In summary, the U-shaped spring preparation device in the above embodiment of the present invention, through the movable block 30 set in the installation groove 11 of the mold body 10, and the limiting groove 12 set on the movable block 30 and the top of the mold body 10, allows the rod-shaped spring to be placed in the limiting groove 12, and then through the knife edge set on one side of the mold body 10, when the upper mold is squeezed downward, the rod-shaped spring will be cut by the shear force and the action of the knife edge, and the required cutting length is determined by the length of the limiting groove 12, thereby realizing the cutting process of the rod-shaped spring, and then the upper mold continues to move downward, so that the upper mold squeezes the movable block 30 and the cut rod-shaped spring into the installation groove 11, and due to The arc groove 13 provided on the side wall of the mounting groove 11 causes the middle of the rod-shaped spring to face downward, and the two sides of the rod-shaped spring are bent under the action of the arc groove 13 and are perpendicular to the middle section, and then move downward along the arc groove 13, thereby bending the rod-shaped spring into a U-shaped spring, completing the U-shaped spring bending process. The upper die is reset under the action of the driving member, and the movable block 30 is reset under the action of the elastic component, and the automatic U-shaped spring is moved out of the mounting groove 11 for automatic unloading. Through this device, the cutting and bending processes of the wheel U-shaped spring can be simultaneously completed in one stamping, and the transfer step between the two processes is avoided, greatly improving the production efficiency of the U-shaped spring. Therefore, the utility model solves the problem of low production efficiency of U-shaped springs in the prior art.

[0039] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0040] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A U-shaped spring preparation device, characterized in that: It includes a mold body, a knife block arranged on one side of the mold body and a movable block arranged in the middle of the mold body, a mounting groove for setting the movable block is opened in the middle of the mold body, an elastic member is provided at the bottom of the mounting groove to enable the movable block to move up and down in the mounting groove, the mold body and the top of the movable block are both provided with a limiting groove adapted to the rod-shaped spring, and the side wall on the opposite side of the mounting groove and the movable block is provided with an arc groove for bending the rod-shaped spring to obtain a U-shaped spring.

2. The U-shaped spring manufacturing device according to claim 1, characterized in that: Grooves are provided on both sides of the top of the mold body, and the blade block is arranged in the groove on one side. When the blade block is placed in the groove, the top of the blade block is higher than the top of the mold body.

3. The U-shaped spring manufacturing device according to claim 1, characterized in that: The elastic member is a spring, and a plurality of the elastic members are distributed equidistantly along the length direction of the installation slot.

4. The U-shaped spring manufacturing device according to claim 1, characterized in that: Baffles are provided on both sides of the mold body. The baffles include a main body and an extension portion extending from one side of the main body into the installation slot, so that the rod-shaped spring falls outside the installation slot after being bent.

5. The U-shaped spring manufacturing device according to claim 4, characterized in that: The cross-sectional area of ​​the main body decreases gradually from the top to the bottom, so that the main body is tilted away from the side of the mold body.

6. The U-shaped spring manufacturing device according to claim 1, characterized in that: The length of the arc groove is smaller than the length of the limiting groove.

7. The U-shaped spring manufacturing device according to claim 4, characterized in that: Through holes are provided on both sides of the bottom of the main body, and mounting holes adapted to the through holes are provided on the mold body. Fasteners pass through the through holes and adapt to the mounting holes, so that the baffle is fixed on the mold body.

8. The U-shaped spring manufacturing device according to claim 7, characterized in that: The plurality of mounting holes are distributed equidistantly along the height direction of the mold body.

9. The U-shaped spring manufacturing device according to claim 4, characterized in that: Both sides of the main body are inclined toward one side, so that the outer contour of the main body is an isosceles trapezoid.

10. The U-shaped spring manufacturing device according to claim 2, characterized in that: A height difference between the blade block and the groove is greater than a diameter of the rod-shaped spring.

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