Spring bar stock flattening drive mechanism

Abstract

The utility model belongs to spring bar material roll flat technical field discloses spring bar material roll flat drive mechanism, and specific technical scheme is: including motor support, the top of motor support is fixed with the toothed box, the horizontal arrangement of toothed box has drive shaft, first driven shaft and second driven shaft, drive shaft transmits through first gear set and first driven shaft, first driven shaft links with first roll axle through first universal coupling, second driven shaft transmits through second gear set and second driven shaft, servo motor is placed between motor support and roll flat support, servo motor links with drive shaft through speed reducer, first driven shaft links with first roll axle through first universal coupling, second driven shaft links with second roll axle through second universal coupling, the utility model has realized the processing of spring bar material through the cooperation of servo motor and transmission mechanism, through reasonable motor structure layout, the whole appearance is beautiful and reduces the installation space of whole mechanism, power is stable and high precision.

Description

Technical Field

[0001] This utility model belongs to the field of spring bar flattening technology, specifically relating to a drive mechanism used in spring bar processing. Background Technology

[0002] Spring rods are cylindrical. If the cylindrical rod ends are directly rolled into springs, the resulting spring ends will be uneven, requiring further end-face machining, which is time-consuming, labor-intensive, and results in poor spring quality. Therefore, to ensure one-time forming during spring rolling, the cylindrical rod ends need to be machined into a square pyramid shape before rolling. This pyramidal structure ensures one-time forming. Currently, most flattening machines use stepper motors for their drive mechanisms. Stepper motors have poor precision, low energy efficiency, require large installation space, have poor stability, generate high noise during operation, and lack dynamic response, making them unsuitable for the drive requirements of modern fully automatic CNC flattening machines. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model provides a spring bar flattening drive mechanism, which reduces installation space, provides stable driving force, and has a fast response.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a spring bar flattening drive mechanism, including a motor support, a gearbox fixed to the top of the motor support, a drive shaft horizontally arranged inside the gearbox, both ends of the drive shaft being supported in the gearbox by deep groove ball bearings, and the outer end of the drive shaft being locked by a locking washer. One end of the drive shaft extends outward and is connected to a reducer and a servo motor in sequence via a coupling, and the housing of the reducer is fixed to the gearbox by multiple bolts.

[0005] The gearbox contains a first driven shaft and a second driven shaft arranged horizontally. The first driven shaft, the second driven shaft, and the drive shaft are arranged in parallel. Both ends of the first driven shaft are supported in the gearbox by deep groove ball bearings. One end of the first driven shaft extends outside the gearbox and is connected to the first roller shaft via a first universal coupling. The first driven shaft is connected to the drive shaft via a first gear set. Both ends of the second driven shaft are supported in the motor drive housing by deep groove ball bearings. One end of the second driven shaft extends outside the gearbox and is connected to the second roller shaft via a second universal coupling. The second driven shaft is connected to the first driven shaft via a second gear set.

[0006] The servo motor, the first universal joint, and the second universal joint are arranged on the same side of the gearbox. The servo motor, the first universal joint, and the second universal joint are placed between the gearbox and the flattening bracket, making reasonable use of the existing mechanical space and reducing the installation space of the entire flattening machine.

[0007] One end of the first roller shaft is mounted in a first bearing housing via a double-row tapered roller bearing. The first bearing housing is movably mounted at the bottom of the first telescopic device. Under the action of the first telescopic device, the first bearing housing can reciprocate up and down within the flattening support. A first roller ring is installed in the middle of the first roller shaft. The other end of the first roller shaft is mounted in a second bearing housing via a double-row tapered roller bearing. The second bearing housing is movably mounted at the bottom of the second telescopic device. Under the action of the second telescopic device, the second bearing housing can reciprocate up and down within the flattening support. The first bearing housing and the second bearing housing move synchronously.

[0008] One end of the second roller shaft is mounted in the third bearing housing via a double-row tapered roller bearing. The third bearing housing is movably mounted on the top of the third telescopic device. Under the action of the third telescopic device, the third bearing housing can reciprocate up and down within the flattening support. A second roller ring is installed in the middle of the second roller shaft. The other end of the second roller shaft is mounted in the fourth bearing housing via a double-row tapered roller bearing. The fourth bearing shaft is movably mounted on the top of the fourth telescopic device. Under the action of the fourth telescopic device, the fourth bearing housing can reciprocate up and down within the flattening support. The third bearing housing and the fourth bearing housing move synchronously.

[0009] The motor support consists of a top frame and a bottom frame, which are connected by an intermediate support. The intermediate support has weight-reducing through holes, and the top frame and bottom frame are supported by multiple stiffening plates. The entire motor support is lightweight and has high structural strength.

[0010] The first bearing housing and the second bearing housing are connected by two first connecting rods to ensure that the first bearing housing and the second bearing housing move synchronously; the third bearing housing and the fourth bearing housing are connected by two second connecting rods to ensure that the third bearing housing and the fourth bearing housing move synchronously.

[0011] The first gear set includes a first driving gear and a first driven gear. The first driving gear is mounted on the driving shaft, and the first driven gear is mounted on the first driven shaft. The first driven gear is locked on the first driven shaft by a retaining ring.

[0012] The second gear set includes a second driving gear and a second driven gear. The second driving gear is mounted on the first driven shaft and locked on the first driven shaft by a retaining ring. The second driven gear is mounted on the second driven shaft and locked on the second driven shaft by a retaining ring.

[0013] The first roller ring is limited to the bearings on both sides by the first fixed sleeve, and the second roller ring is limited to the bearings on both sides by the second fixed sleeve. The outer surfaces of the first roller ring and the second roller ring are pressed against each other to flatten the end of the spring bar material.

[0014] Compared with the prior art, the specific beneficial effects of this utility model are as follows: This utility model realizes the power composition of the flattening mechanism through the cooperation of servo motor and transmission mechanism. Through reasonable motor structure layout, the servo motor and universal coupling are installed on the same side of the gear box, which is beautiful and reduces the installation space of the entire mechanism. After the servo motor rotates, it drives the corresponding roller to rotate through the gear box, universal coupling and other transmissions to realize the force on the bar in the horizontal direction, so that it is pulled a horizontal distance and flattened. The power is stable and the precision is high, which can meet the drive requirements of fully automatic CNC flattening machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 for Figure 1 Cross-sectional view at point AA.

[0017] Figure 3 for Figure 2 A magnified view of a section at point B.

[0018] Figure 4 for Figure 2 A magnified view of a section at point C.

[0019] Figure 5 for Figure 2 A magnified view of a section at point D.

[0020] Figure 6 A schematic diagram showing the connection relationship between the gearbox and the first and second roller rings. Figure 1 .

[0021] Figure 7 A schematic diagram showing the connection relationship between the gearbox and the first and second roller rings. Figure 2 .

[0022] Figure 8 This is a schematic diagram showing the connection between the gearbox and the motor support.

[0023] In the diagram, 1 is the motor support, 101 is the top frame, 102 is the base frame, 103 is the intermediate support, 104 is the weight-reducing through hole, 105 is the stiffening plate, 2 is the gearbox, 3 is the drive shaft, 4 is the reducer, 5 is the first driven shaft, 6 is the second driven shaft, 7 is the first universal coupling, 8 is the first roller shaft, 9 is the second universal coupling, 10 is the second roller shaft, 11 is the first bearing housing, 12 is the first roller ring, 13 is the second bearing housing, 14 is the flattening support, and 15 is the first extension... The telescopic device is as follows: 16 is the second telescopic device, 17 is the third bearing seat, 18 is the fourth bearing seat, 19 is the second roller ring, 20 is the first connecting rod, 21 is the second connecting rod, 22 is the deep groove ball bearing, 23 is the anti-retraction washer, 24 is the first driving gear, 25 is the first driven gear, 26 is the second driving gear, 27 is the second driven gear, 28 is the first fixed sleeve, 29 is the second fixed sleeve, 30 is the servo motor, 31 is the third telescopic device, and 32 is the fourth telescopic device. Detailed Implementation

[0024] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] like Figure 1-8 As shown, the spring bar flattening drive mechanism includes a motor support 1, a gearbox 2 fixed to the top of the motor support 1, a drive shaft 3 horizontally arranged inside the gearbox 2, both ends of the drive shaft 3 being supported in the gearbox 2 by deep groove ball bearings 22, and both ends of the drive shaft 3 being limited by anti-reverse washers 23. One end of the drive shaft 3 extends outward and is connected in sequence to a reducer 4 and a servo motor 30 via a coupling. The housing of the reducer 4 is fixed to the gearbox 2 by multiple bolts.

[0026] A first driven shaft 5 and a second driven shaft 6 are horizontally arranged inside the gearbox 2. The first driven shaft 5, the second driven shaft 6, and the drive shaft 3 are arranged in parallel. Both ends of the first driven shaft 5 are supported inside the gearbox 2 by deep groove ball bearings 22. One end of the first driven shaft 5 extends outside the gearbox 2 and is connected to the first roller shaft 8 through the first universal coupling 7. The first driven shaft 5 is connected to the drive shaft 3 through the first gear set. Both ends of the second driven shaft 6 are supported inside the motor drive box by deep groove ball bearings 22. One end of the second driven shaft 6 extends outside the gearbox 2 and is connected to the second roller shaft 10 through the second universal coupling 9. The second driven shaft 6 is connected to the first driven shaft 5 through the second gear set.

[0027] The servo motor 30, the first universal coupling 7, and the second universal coupling 9 are arranged on the same side of the gearbox 2. The servo motor 30, the first universal coupling 7, and the second universal coupling 9 are placed between the gearbox 2 and the flattening bracket 14, making reasonable use of the existing mechanical space and reducing the installation space of the entire flattening machine.

[0028] One end of the first roller shaft 8 is mounted in the first bearing housing 11 via a double-row tapered roller bearing. The first bearing housing 11 is movably mounted at the bottom of the first telescopic device 15. Under the action of the first telescopic device 15, the first bearing housing 11 can reciprocate up and down within the flattening bracket 14. The middle part of the first roller shaft 8 is equipped with a first roller ring 12. The other end of the first roller shaft 8 is mounted in the second bearing housing 13 via a double-row tapered roller bearing. The second bearing housing 13 is movably mounted at the bottom of the second telescopic device 16. Under the action of the second telescopic device 16, the second bearing housing 13 can reciprocate up and down within the flattening bracket 14. The first bearing housing 11 and the second bearing housing 13 move synchronously.

[0029] The first telescopic device 15 can be hydraulically driven or electrically driven by a lead screw; the second telescopic device 16 can also be hydraulically driven or electrically driven by a lead screw. If hydraulically driven, the first telescopic device 15 and the second telescopic device 16 adopt a dual parallel synchronous oil circuit to ensure the synchronous operation of the first telescopic device 15 and the second telescopic device 16. If a lead screw drive is used, the lead screws on both sides move synchronously to ensure the synchronous operation of the first telescopic device 15 and the second telescopic device 16.

[0030] One end of the second roller shaft 10 is mounted in the third bearing housing 17 via a double-row tapered roller bearing. The third bearing housing 17 is movably mounted on the top of the third telescopic device 31. Under the action of the third telescopic device 31, the third bearing housing 17 can reciprocate up and down within the flattening bracket 14. The second roller shaft 10 is equipped with a second roller ring 19 in the middle. The other end of the second roller shaft 10 is mounted in the fourth bearing housing 18 via a double-row tapered roller bearing. The fourth bearing housing 18 is movably mounted on the top of the fourth telescopic device 32. Under the action of the fourth telescopic device 32, the fourth bearing housing 18 can reciprocate up and down within the flattening bracket 14. The third bearing housing 17 and the fourth bearing housing 18 move synchronously.

[0031] The third telescopic device 31 can be hydraulically driven or electrically driven; the fourth telescopic device 32 can be hydraulically driven or electrically driven, ensuring the synchronous operation of the third telescopic device 31 and the fourth telescopic device 32.

[0032] The motor support 1 includes a top frame 101 and a bottom frame 102. The top frame 101 and the bottom frame 102 are connected by an intermediate support 103. The intermediate support 103 has a weight-reducing through hole 104. The top frame 101 and the bottom frame 102 are supported by multiple stiffening plates 105. The entire motor support 1 is lightweight and has high structural strength.

[0033] The first bearing housing 11 and the second bearing housing 13 are connected by two first connecting rods 20 to ensure that the first bearing housing 11 and the second bearing housing 13 move synchronously; the third bearing housing 17 and the fourth bearing housing 18 are connected by two second connecting rods 21 to ensure that the third bearing housing 17 and the fourth bearing housing 18 move synchronously.

[0034] The first gear set includes a first driving gear 24 and a first driven gear 25. The first driving gear 24 is mounted on the driving shaft 3, and the first driven gear 25 is mounted on the first driven shaft 5. The first driven gear 25 is locked on the first driven shaft 5 by a retaining ring.

[0035] The second gear set includes a second driving gear 26 and a second driven gear 27. The second driving gear 26 is mounted on the first driven shaft 5 and locked on the first driven shaft 5 by a retaining ring. The second driven gear 27 is mounted on the second driven shaft 6 and locked on the second driven shaft 6 by a retaining ring.

[0036] The first roller ring 12 is limited to the bearings on both sides by the first fixing sleeve 28, and the second roller ring 19 is limited to the bearings on both sides by the second fixing sleeve 29. The outer surfaces of the first roller ring 12 and the second roller ring 19 are squeezed against each other to flatten the end of the spring bar material.

[0037] During operation, the servo motor 30 starts, which in turn drives the reducer 4 and the drive shaft 3 to rotate. Under the action of the first gear set and the second gear set, the first driven shaft 5, the second driven shaft 6, the first roller shaft 8, and the second roller shaft 10 rotate synchronously. Under the combined action of the first telescopic device 15 and the second telescopic device 16, the first bearing seat 11, the second bearing seat 13, and the first roller ring 12 rise and fall synchronously. Under the combined action of the third telescopic device 31 and the fourth telescopic device 32, the third bearing seat 17, the fourth bearing seat 18, and the second roller ring 19 rise and fall synchronously. The first roller ring 12 and the second roller ring 19 squeeze and roll against each other to flatten the end of the spring bar material. By controlling the rollers to move closer or further away through the hydraulic cylinder, the required material taper can be produced, realizing the automatic flattening processing of the spring bar material. It has a high degree of automation and good stability.

[0038] This utility model features a reasonable motor structure layout, with the servo motor 30 and the universal coupling installed on the same side of the gearbox 2, resulting in an aesthetically pleasing design and reduced installation space for the entire mechanism.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A spring bar flattening drive mechanism, characterized in that, Includes a motor support (1), the top of which is fixed with a gearbox (2), and a drive shaft (3) is horizontally arranged inside the gearbox (2). One end of the drive shaft (3) is supported in the gearbox (2) by a bearing, and the other end of the drive shaft (3) is connected to a reducer (4) and a servo motor (30) in sequence by a coupling. The housing of the reducer (4) is fixed to the gearbox (2) by multiple bolts. The gearbox (2) is horizontally arranged with a first driven shaft (5) and a second driven shaft (6). The first driven shaft (5) is supported in the gearbox (2) by bearings. The end of the first driven shaft (5) extending outside the gearbox (2) is connected to the first roller shaft (8) through the first universal coupling (7). The first driven shaft (5) is connected to the drive shaft (3) through the first gear set. The second driven shaft (6) is supported in the motor drive box by bearings. The end of the second driven shaft (6) extending outside the gearbox (2) is connected to the second roller shaft (10) through the second universal coupling (9). The second driven shaft (6) is connected to the first driven shaft (5) through the second gear set. The servo motor (30), the first universal coupling (7), and the second universal coupling (9) are arranged on the same side of the gearbox (2); One end of the first roller shaft (8) is mounted in the first bearing seat (11) through a bearing. The first bearing seat (11) is movably mounted at the bottom of the first telescopic device (15). The first roller ring (12) is mounted in the middle of the first roller shaft (8). The other end of the first roller shaft (8) is mounted in the second bearing seat (13) through a bearing. The second bearing seat (13) is movably mounted at the bottom of the second telescopic device (16). The first telescopic device (15) and the second telescopic device (16) are both mounted on the flattening bracket (14). One end of the second roller (10) is mounted in the third bearing seat (17) via a bearing. The third bearing seat (17) is movably mounted on the top of the third telescopic device (31). The second roller ring (19) is mounted in the middle of the second roller (10). The other end of the second roller (10) is mounted in the fourth bearing seat (18) via a bearing. The fourth bearing seat (18) is movably mounted on the top of the fourth telescopic device (32). Both the third telescopic device (31) and the fourth telescopic device (32) are mounted on the flattening bracket (14).

2. The spring bar flattening drive mechanism according to claim 1, characterized in that, The motor support (1) includes a top frame (101) and a bottom frame (102). The top frame (101) and the bottom frame (102) are connected by an intermediate support (103). The intermediate support (103) has a weight-reducing through hole (104). The top frame (101) and the bottom frame (102) are supported by multiple stiffening plates (105).

3. The spring bar flattening drive mechanism according to claim 2, characterized in that, The first bearing housing (11) and the second bearing housing (13) are connected by two first connecting rods (20), and the third bearing housing (17) and the fourth bearing housing (18) are connected by two second connecting rods (21).

4. The spring bar flattening drive mechanism according to claim 3, characterized in that, Both ends of the drive shaft (3) are supported in the gearbox (2) by deep groove ball bearings (22), and the extended ends of the drive shaft (3) are locked by anti-reverse pads (23); Both ends of the first driven shaft (5) are supported in the gearbox (2) by deep groove ball bearings (22); Both ends of the second driven shaft (6) are supported in the gearbox (2) by deep groove ball bearings (22).

5. The spring bar flattening drive mechanism according to claim 4, characterized in that, The first gear set includes a first driving gear (24) and a first driven gear (25). The first driving gear (24) is mounted on the driving shaft (3), and the first driven gear (25) is mounted on the first driven shaft (5). The second gear set includes a second driving gear (26) and a second driven gear (27). The second driving gear (26) is mounted on a first driven shaft (5), and the second driven gear (27) is mounted on a second driven shaft (6).

6. The spring bar flattening drive mechanism according to claim 5, characterized in that, The first roller ring (12) is limited to the bearings on both sides by the first fixing sleeve (28), and the second roller ring (19) is limited to the bearings on both sides by the second fixing sleeve (29).

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