Pre-pressing device for spring machining

Abstract

The utility model relates to the field of springs, in particular to a prepressing device for spring processing, which comprises a machine table, a prepressing assembly for bearing a spring, a machine body and one of main bodies arranged above the machine table and used for placing the spring and prepressing, and a servo motor is arranged at the bottom of the machine table. The pre-pressing device is provided with the pre-pressing rotating shaft, the spring sleeve rod, the spring body, the pre-pressing ring and the pre-pressing plate, the spring sleeve rod with the appropriate size can be installed on the pre-pressing rotating shaft through the threaded groove and the threaded rod according to the size of the current spring body, then the spring body and the pre-pressing ring are arranged outside the spring sleeve rod with the upward angle in a sleeved mode, and therefore when the pre-pressing plate is pressed downwards, the spring body is not prone to falling off. When the spring body is pressed, the pre-pressing plate can abut against the pre-pressing ring, the pre-pressing ring continues to press the spring body downwards to complete the pre-pressing work, at the moment, the first rotary disc and the second rotary disc drive the pre-pressing rotary shaft to rotate at a constant speed, other inclined spring sleeve rods sequentially turn to the position below the pre-pressing plate, and then the pre-pressing work of the spring can be continued.

Description

Technical Field

[0001] The utility model relates to the field of springs, in particular to a preloading device for spring processing. Background Art

[0002] A spring is a mechanical part that uses elasticity to work. It is usually made of elastic material, such as spring steel. It can deform under the action of external force and return to its original shape after the external force is removed. A pre-stressing device is required during spring processing. The spring pre-stressing device refers to a certain compression operation performed when the spring is processed and manufactured without bearing a load, so as to apply a certain stress to the spring in advance, so that the deformation and stress level of the spring in actual use are more controllable, thereby having better stability, durability, self-locking performance and other characteristics.

[0003] After searching, a spring prestressing device with publication number CN217912665U is found, which specifically discloses a spring prestressing device, which includes a frame and a workbench, a hydraulic cylinder and a pressure plate arranged on the frame, the workbench is horizontally arranged, the hydraulic cylinder is located above the workbench and the piston rod is vertically arranged downward, the pressure plate is arranged at the bottom end of the piston rod of the hydraulic cylinder and is horizontally arranged, and a first clamping plate and a second clamping plate are arranged on the workbench. When the spring is placed vertically on the workbench, the first clamping plate and the second clamping plate are respectively located on both sides of the spring and press against the spring. The present application can limit the spring when prestressing the spring, which has the effect of reducing the possibility of the spring jumping out of the workbench.

[0004] During the use of the existing pre-stressing device, due to the different sizes of springs, it is necessary to manually adjust the clamp to clamp and fix springs of different sizes during pre-stressing. This has a low work efficiency of clamping and pre-stressing one spring at a time, and also delays the processing time of the springs. In addition, the pre-stressing device in the above-mentioned comparative case also lacks a method for quickly pre-stressing in batches. This not only increases the labor intensity and working time of the workers under long-term use, but also has a low overall work efficiency of the device and a narrowed scope of use.

[0005] Therefore, it is necessary to invent a preloading device for spring processing to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a prestressing device for spring processing, which can realize simultaneous prestressing of multiple spring bodies at one time through a prestressing shaft, a spring sleeve rod, a spring body, a prestressing ring and a prestressing plate, thereby greatly improving the overall working efficiency and working time of the prestressing device. Moreover, after the prestressing is completed, as the prestressing shaft rotates, the angle of the prestressed spring sleeve rod is tilted, and the spring body and the prestressing ring will slide down by themselves, thus avoiding the need to manually disassemble the spring bodies one by one. In this way, the device has the ability to prestress in batches quickly, expands the overall use range of the device, and reduces the labor intensity and labor time of workers, so as to solve the problem that in the use of the prestressing device in the prior art, due to the different sizes of springs, manual adjustment of the clamp is required to clamp and fix springs of different sizes during prestressing, so that the working efficiency of clamping and prestressing one by one is too low, and the processing time of the springs is also delayed. In addition, the prestressing device in the above-mentioned comparative case also lacks a method for prestressing in batches quickly, so that long-term use not only increases the labor intensity and labor time of workers, but also the overall working efficiency of the device is low and the scope of application is also narrowed.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a preloading device for spring processing, comprising a machine table for carrying a spring preloading component;

[0008] The machine body is arranged above the machine platform and is used to place the spring and one of the main bodies for preloading. A servo motor is arranged at the bottom of the machine platform. A first rotating disk is fixedly installed at the output end of the servo motor. A transmission belt is movably connected to the outside of the first rotating disk. A second rotating disk is movably connected to the inner side of the transmission belt. A preloading rotating shaft is fixedly installed on the outside of the second rotating disk.

[0009] A threaded groove is arranged on the outside of the pre-stressing shaft and is used for connecting and installing a threaded rod, and a spring sleeve rod is fixedly installed at one end of the threaded rod, a spring body is arranged on the outside of the spring sleeve rod, a pre-stressing ring is arranged above the spring body, a fixed block is fixedly installed inside the body, a sliding rod is fixedly installed above the fixed block, and a pre-stressing plate is movably connected to the outside of the sliding rod.

[0010] Preferably, the first turntable is movably connected to the second turntable, and the center line of the pre-load shaft coincides with the center line of the second turntable.

[0011] Preferably, the number of the spring sleeve rods is set to be multiple, and the multiple spring sleeve rods are distributed in a ring array on the pre-stressing shaft.

[0012] Preferably, the pre-pressing plate is movably connected to the sliding rods, and the sliding rods are distributed at equal intervals on the machine body.

[0013] Preferably, a hydraulic cylinder is fixedly mounted on the top of the machine body, and a hydraulic rod is movably connected inside the hydraulic cylinder.

[0014] Preferably, a fixed slide rail is provided inside the machine body, a fixed slide sleeve is movably connected to the outside of the fixed slide rail, and a carrying box is fixedly installed on the outside of the fixed slide sleeve.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. The utility model is provided with a pre-stressing shaft, a spring sleeve rod, a spring body, a pre-stressing ring and a pre-stressing plate. According to the size of the current spring body, a spring sleeve rod of a suitable size can be installed on the pre-stressing shaft through a threaded groove and a threaded rod, and then the spring body and the pre-stressing ring are sleeved on the outer side of the spring sleeve rod at an upward angle. In this way, when the pre-stressing plate is pressed down, the pre-stressing plate will contact the pre-stressing ring, and the pre-stressing ring will continue to press down the spring body to complete the pre-stressing work. At this time, only the first turntable and the second turntable need to drive the pre-stressing shaft to rotate at a uniform speed, so that the other side-inclined spring sleeve rods can be turned to the bottom of the pre-stressing plate in turn. The preloading work of the spring can be continued. In this way, multiple spring bodies can be preloaded at the same time next time, which greatly improves the overall working efficiency and working time of the preloading device. Moreover, after the preloading is completed, as the preloading shaft rotates, the angle of the preloaded spring sleeve rod tilts, and the spring body and the preloading ring will slide off by themselves, thus avoiding the need to manually disassemble the spring body one by one. In this way, the device has the ability to quickly preload in batches, expands the overall use range of the device, and reduces the labor intensity and working time of workers.

[0017] 2. The utility model is provided with a fixed block, a sliding rod, a pre-stressing plate, a hydraulic cylinder, a hydraulic rod, a fixed slide rail, a fixed sliding sleeve and a bearing box. When the pre-stressing device is used, the four sets of sliding rods inside the body ensure the stability when the hydraulic cylinder and the hydraulic rod drive the pre-stressing plate to descend for pre-stressing, so that the pre-stressing plate can stably contact the pre-stressing ring to complete the pre-stressing work of the spring, and the fixed slide rail and the fixed sliding sleeve have a simple structure and are easy to operate. After the pre-stressed springs are fully stored, the bearing box can be quickly drawn out to take out the full springs stored inside, without delaying the normal use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the first turntable structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the spring sleeve rod structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the pre-pressing plate of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the carrying box of the utility model.

[0024] Description of reference numerals:

[0025] 1. Machine platform; 2. Machine body; 3. Servo motor; 4. First turntable; 5. Transmission belt; 6. Second turntable; 7. Preload shaft; 8. Threaded groove; 9. Threaded rod; 10. Spring sleeve rod; 11. Spring body; 12. Preload ring; 13. Fixed block; 14. Sliding rod; 15. Preload plate; 16. Hydraulic cylinder; 17. Hydraulic rod; 18. Fixed slide rail; 19. Fixed slide sleeve; 20. Carrying box. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5 A preloading device for spring processing shown includes a machine table 1 for carrying a spring preloading component;

[0028] The machine body 2 is arranged above the machine platform 1 and is used to place the spring and one of the main bodies for preloading. A servo motor 3 is arranged at the bottom of the machine platform 1. A first turntable 4 is fixedly installed at the output end of the servo motor 3. A transmission belt 5 is movably connected to the outside of the first turntable 4. A second turntable 6 is movably connected to one side of the inside of the transmission belt 5. A preloading shaft 7 is fixedly installed on the outside of the second turntable 6.

[0029] The threaded groove 8 is arranged on the outside of the pre-stressing shaft 7 for connecting and installing the threaded rod 9, and a spring sleeve rod 10 is fixedly installed at one end of the threaded rod 9, a spring body 11 is arranged on the outside of the spring sleeve rod 10, and a pre-stressing ring 12 is arranged above the spring body 11, a fixed block 13 is fixedly installed inside the body 2, a sliding rod 14 is fixedly installed above the fixed block 13, and a pre-stressing plate 15 is movably connected to the outside of the sliding rod 14. When the pre-stressing plate 15 is pressed down, the pre-stressing plate 15 will contact the pre-stressing ring 12, and the pre-stressing ring 12 continues to press down the spring body 11 to complete the pre-stressing work. At this time, only the first turntable 4 and the second turntable 6 need to drive the pre-stressing shaft 7 to rotate at a uniform speed, so that the other side-inclined spring sleeve rods 10 can turn to the bottom of the pre-stressing plate 15 in turn, and the pre-stressing work of the spring can continue.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the first turntable 4 is movably connected with the second turntable 6, and the center line of the pre-stressing shaft 7 coincides with the center line of the second turntable 6. The first turntable 4 and the second turntable 6 drive the pre-stressing shaft 7 to rotate at a uniform speed, so that the inclined spring sleeve rod 10 can be vertically turned to the pre-stressing plate 15 to complete the spring pre-stressing work. The number of spring sleeve rods 10 is set to multiple, and the multiple spring sleeve rods 10 are distributed in a ring array on the pre-stressing shaft 7. According to the size of the current spring body 11, the spring sleeve rod 10 of appropriate size can be installed on the pre-stressing shaft 7 through the threaded groove 8 and the threaded rod 9.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, the pre-stressing plate 15 is movably connected with the sliding rod 14, and the sliding rod 14 is evenly spaced on the body 2. The four groups of sliding rods 14 inside the body 2 ensure the stability when the hydraulic cylinder 16 and the hydraulic rod 17 drive the pre-stressing plate 15 to descend for pre-stressing, so that the pre-stressing plate 15 can stably contact the pre-stressing ring 12 to complete the pre-stressing work of the spring. A hydraulic cylinder 16 is fixedly installed on the top of the body 2, and a hydraulic rod 17 is movably connected inside the hydraulic cylinder 16. The power of the hydraulic cylinder 16 and the hydraulic rod 17 is sufficient to allow the pre-stressing plate 15 to provide sufficient downward pressure stress to the spring to meet different spring pre-stressing requirements. A fixed slide rail 18 is arranged inside the body 2, and a fixed sleeve 19 is movably connected to the outside of the fixed slide rail 18, and a bearing box 20 is fixedly installed on the outside of the fixed sleeve 19. The fixed slide rail 18 and the fixed sleeve 19 have a simple structure and simple operation. After the pre-stressed spring is fully stored, the bearing box 20 can be quickly drawn out to take out the full spring stored inside, without delaying the normal use of the device.

[0032] The working principle of the utility model is as follows: firstly, the external power supply is turned on. According to the size of the current spring body 11, the spring sleeve rod 10 of the appropriate size can be installed on the preloading shaft 7 through the threaded groove 8 and the threaded rod 9. Then, the spring body 11 to be preloaded is taken out. The spring body 11 and the preloading ring 12 are sleeved on the outside of the three spring sleeve rods 10 with the angle upward. Then, the switch of the hydraulic cylinder 16 is turned on. The power of the hydraulic cylinder 16 and the hydraulic rod 17 is sufficient to allow the preloading plate 15 to provide sufficient downward pressure stress to the spring to meet different spring preloading requirements. Then, as the hydraulic rod 17 drives The pre-stressing plate 15 descends, and the pre-stressing plate 15 slides on the four sets of sliding rods 14. The four sets of sliding rods 14 ensure the stability of the pre-stressing plate 15 when the hydraulic cylinder 16 and the hydraulic rod 17 drive the pre-stressing plate 15 to descend for pre-stressing, so that the pre-stressing plate 15 can stably contact the pre-stressing ring 12 to complete the pre-stressing work of the spring. Then the pre-stressing plate 15 continues to descend and contacts the pre-stressing ring 12. The pre-stressing ring 12 relatively presses down the spring body 11 and then lifts up to complete the pre-stressing work of the spring. At this time, you only need to turn on the switch of the servo motor 3, so that the servo motor 3 drives the first turntable 4 and the second turntable 6 to rotate, and the pre-stressing shaft 7 is linked. The spring sleeve rods 10 are rotated at a uniform speed, and then the other side-inclined spring sleeve rods 10 are turned to the bottom of the preloading plate 15 in turn. At this time, the preloading plate 15 and the spring sleeve rod 10 are in a vertical state, and the preloading plate 15 can be pressed down according to the above operation to preload the spring. In this way, multiple spring bodies 11 can be preloaded at the same time, which greatly improves the overall working efficiency and working time of the preloading device. Then, after the preloading is completed, as the preloading shaft 7 rotates, the preloaded spring sleeve rod 10 continues to tilt at an angle, and the spring body 11 and the preloading ring 12 will slide down by themselves into the bearing box below. 20, it is avoided that there is a need to manually disassemble the prestressed spring bodies 11 one by one, so that the device has the ability to quickly prestress in batches, expanding the overall use range of the device. Finally, after completing the installation and use of all prestressing devices according to the above operations, turn off the switch of the servo motor 3, turn off the switch of the hydraulic cylinder 16, and quickly draw out the carrying box 20 through the fixed slide rail 18 and the fixed sleeve 19 to take out the springs stored inside. If it is not used for a long time, cut off the external power supply. In this way, the use process of the prestressing device for spring processing is completed.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A preloading device for spring processing, characterized in that: include A machine platform (1) for carrying a spring preloading component; A machine body (2) is arranged above the machine platform (1) and is used to place a spring and one of the main bodies for preloading. A servo motor (3) is arranged at the bottom of the machine platform (1). A first turntable (4) is fixedly mounted on the output end of the servo motor (3). The outside of the first turntable (4) is movably connected to a transmission belt (5). The inside of the transmission belt (5) is movably connected to a second turntable (6). A preloading shaft (7) is fixedly mounted on the outside of the second turntable (6). A threaded groove (8) is arranged on the outside of the pre-stressing shaft (7) and is used for connecting and installing a threaded rod (9), and a spring sleeve rod (10) is fixedly installed at one end of the threaded rod (9), a spring body (11) is arranged on the outside of the spring sleeve rod (10), a pre-stressing ring (12) is arranged above the spring body (11), a fixed block (13) is fixedly installed inside the machine body (2), a sliding rod (14) is fixedly installed above the fixing block (13), and a pre-stressing plate (15) is movably connected to the outside of the sliding rod (14).

2. A preloading device for spring processing according to claim 1, characterized in that: The first rotating disk (4) is movably connected to the second rotating disk (6), and the center line of the pre-pressing rotating shaft (7) coincides with the center line of the second rotating disk (6).

3. A preloading device for spring processing according to claim 1, characterized in that: The number of the spring sleeve rods (10) is set to be multiple, and the multiple spring sleeve rods (10) are distributed in a ring array on the pre-stressing rotating shaft (7).

4. A preloading device for spring processing according to claim 1, characterized in that: The pre-pressing plate (15) is movably connected to the sliding rods (14), and the sliding rods (14) are distributed at equal intervals on the machine body (2).

5. A preloading device for spring processing according to claim 1, characterized in that: A hydraulic cylinder (16) is fixedly mounted on the top of the machine body (2), and a hydraulic rod (17) is movably connected inside the hydraulic cylinder (16).

6. A preloading device for spring processing according to claim 1, characterized in that: A fixed slide rail (18) is arranged inside the machine body (2), a fixed slide sleeve (19) is movably connected to the outside of the fixed slide rail (18), and a carrying box (20) is fixedly installed on the outside of the fixed slide sleeve (19).

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