Thread rolling machine for metal fastener thread forming machining

Abstract

The utility model discloses a thread rolling machine for forming and processing threads of metal fasteners, and relates to the technical field of thread rolling machines. The thread rolling device comprises a workbench, the bottom of the workbench is fixedly connected with supporting legs, the top of the workbench is provided with a thread rolling device, the top of the workbench is fixedly connected with a supporting plate, and the top of the workbench is provided with a fixing device. The fixing device comprises a motor, the back side face of the motor is fixedly connected to the front side face of the supporting plate, and an output shaft of the motor is fixedly connected with a threaded rotating rod. And the effects of movement of the threaded sleeve and movement of the fixing plate are achieved, so that a bolt head is fixed and prevented from moving during thread rolling when the bolt is subjected to thread rolling, and the fixing effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thread rolling machines, in particular to a thread rolling machine for thread forming processing of metal fasteners. Background Art

[0002] The thread rolling machine is a versatile cold extrusion forming machine. It can cold-roll threads, straight grains, and diagonal grains within its rolling force range; roll spur, helical, and helical spline gears; and perform straightening, diameter reduction, burnishing, and various other forming operations. The machine features a safe and reliable electro-hydraulic actuator and control system, allowing each operating cycle to be selected between manual, semi-automatic, and automatic modes.

[0003] According to a disclosed thread rolling machine for fastener manufacturing (publication number: CN 218475947 U), it includes: an operating frame, a thread rolling mechanism, two thread rolling mechanisms are installed between the inner side walls of the operating frame, and are used to process fasteners, a clamping mechanism, the clamping mechanism is installed at the front end of the operating frame, and is used to transport the fasteners to be processed between the two thread rolling mechanisms, a protective component, two protective components are slidably arranged on the top of the operating frame, and are used to protect metal debris generated during the processing of the fasteners, and a cleaning component, two cleaning components are respectively installed on the protective component, and are used to rinse the fasteners during the processing of the fasteners. The thread rolling machine for fastener manufacturing can block metal debris generated during the processing of the fasteners to prevent it from posing a threat to the safety of the user.

[0004] However, the above application has two protective components that are slidably arranged on the top of the operating frame, and the protective components cooperate with the metal debris generated during the processing of the fasteners, making it impossible to clean the thread rolling device. As a result, impurities on the thread rolling device during the thread rolling process may affect the quality of the rolled threads. Therefore, we propose a thread rolling machine for metal fastener thread forming processing that can clean the thread rolling device before thread rolling. Utility Model Content

[0005] The purpose of the utility model is to provide a thread rolling machine for metal fastener thread forming processing, which realizes the movement of the bristles and the push plate through the rotation of the motor output shaft and the coordination of the brush plate, bristles, slide groove, gear, rack, push plate and other components inside the cleaning device, so that the thread rolling device can be cleaned before thread rolling to prevent impurities on the thread rolling device from affecting the quality of the rolled bolts, thereby achieving the cleaning effect and solving the existing problems.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a thread rolling machine for metal fastener thread forming processing, comprising a workbench, the bottom of the workbench is fixedly connected to a support leg, the top of the workbench is provided with a thread rolling device, the top of the workbench is fixedly connected to a support plate, and the top of the workbench is provided with a fixing device;

[0008] The fixing device includes a motor, the back side of the motor is fixedly connected to the front side of the support plate, the output shaft of the motor is fixedly connected to a threaded rotating rod, the circumferential surface of the threaded rotating rod is threadedly connected to a threaded sleeve, the circumferential surface of the threaded sleeve is fixedly connected to a connecting strip, the bottom of the connecting strip is fixedly connected to a pushing rod, the bottom of the motor is fixedly connected to a limiting rod, the circumferential surface of the limiting rod passes through the threaded sleeve, and the circumferential surface of the limiting rod is slidably connected to the inner wall of the threaded sleeve.

[0009] Furthermore, the bottom of the connecting bar is rotatably connected to a rotating shaft, the circumferential surface of the rotating shaft is fixedly connected to a pushing bar, the top of the workbench is fixedly connected to a support rod, and the top of the support rod is fixedly connected to a placement plate. The function of the rotating shaft is to drive the pushing bar to rotate when the pushing bar contacts the slider.

[0010] Furthermore, a hydraulic cylinder is fixedly connected to the top of the placement plate, one end of the hydraulic cylinder is connected to a force rod through a piston sliding connection, and the other end of the hydraulic cylinder is connected to a hydraulic rod through a piston sliding connection. The function of the hydraulic rod is to drive the fixed plate to move.

[0011] Furthermore, a fixing plate is fixedly connected to the front side of the hydraulic rod, and a sliding block is fixedly connected to the top of the placement plate. The function of the fixing plate is to fix the screw head of the bolt.

[0012] Furthermore, a torsion spring is fixedly connected to the circumferential surface of the rotating shaft, and the end of the torsion spring away from the rotating shaft is fixedly connected to the side of the connecting bar. The circumferential surface of the force rod is fixedly connected to a spring, and the end of the spring away from the force rod is fixedly connected to the top of the hydraulic cylinder. The function of the torsion spring is to enable the pushing bar to be reset by the action of the torsion spring when the threaded sleeve moves upward, and the function of the spring is to enable the force rod to be reset by the spring when the pushing rod does not push the force rod.

[0013] Furthermore, the number of the pushing rod, hydraulic cylinder, force rod, hydraulic rod, fixed plate and spring is set to two respectively and they are symmetrical with each other along the vertical center axis of the workbench, the shape of the slider is set to be rectangular and the side of the slider is an inclined surface, the top of the force rod is located on the displacement trajectory of the pushing rod, the number of the pushing rod, hydraulic cylinder, force rod, hydraulic rod, fixed plate and spring is set to two respectively and they are symmetrical with each other along the vertical center axis of the workbench so as to better fix the screw head.

[0014] Furthermore, a cleaning device is provided on the top of the workbench, and the cleaning device includes a support bar, the side of the support bar is fixedly connected to the side of the connecting bar, the bottom of the support bar is fixedly connected to a connecting rod, the bottom of the connecting rod is fixedly connected to a brush plate, and the bottom of the brush plate is fixedly connected to bristles, and the function of the bristles is to clean impurities on the thread rolling device.

[0015] Furthermore, a sliding groove is provided on the front side of the support plate, the circumferential surface of the threaded rotating rod is fixedly connected to a gear, the top of the workbench is slidably connected to a rack, and the front side of the rack is fixedly connected to a push plate, and the function of the push plate is to clean up impurities on the workbench.

[0016] Furthermore, a sliding groove is provided on the top of the workbench, and a collection box is slidably connected to the inner wall of the sliding groove. The function of the collection box is to collect impurities pushed down by the push plate on the workbench.

[0017] Furthermore, the number of the support bars, connecting rods, brush plates and bristles is set to two respectively and they are symmetrical with each other along the vertical center axis of the workbench, the circumferential surface of the gear is meshed with the side of the rack, the number of the support bars, connecting rods, brush plates and bristles is set to two respectively and they are symmetrical with each other along the vertical center axis of the workbench. The purpose is to better clean the thread rolling device, and the purpose of the circumferential surface of the gear is meshed with the side of the rack to drive the rack to move when the gear rotates.

[0018] The utility model has the following beneficial effects:

[0019] The utility model realizes the movement of the threaded sleeve and the fixing plate through the rotation of the motor output shaft and the mutual cooperation of the threaded rotating rod, threaded sleeve, pushing rod, pushing bar, hydraulic cylinder, force-bearing rod, hydraulic rod, fixing plate and other components inside the fixing device, thereby fixing the bolt head to prevent displacement during the thread rolling, thereby achieving the fixing effect.

[0020] The utility model realizes the movement of the brush bristles and the push plate through the rotation of the motor output shaft and the cooperation of the brush plate, bristles, slide groove, gear, rack, push plate and other components inside the cleaning device, so that the thread rolling device can be cleaned before thread rolling to prevent impurities on the thread rolling device from affecting the quality of the rolled bolts, thereby achieving the cleaning effect.

[0021] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional overall structure of the fixing device of the present invention;

[0025] Figure 3 This is a schematic diagram of the three-dimensional overall structure of the cleaning device of the present invention;

[0026] Figure 4 For the utility model Figure 2 Schematic diagram of the three-dimensional enlarged structure of A in the middle;

[0027] Figure 5 For the utility model Figure 3 Schematic diagram of the three-dimensional enlarged structure of B.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Workbench; 2. Support legs; 3. Thread rolling device; 4. Support plate; 5. Fixing device; 51. Motor; 52. Threaded rotating rod; 53. Threaded sleeve; 54. Connecting bar; 55. Push rod; 56. Limit rod; 57. Rotating shaft; 58. Push bar; 59. Support rod; 510. Placement plate; 511. Hydraulic cylinder; 512. Force rod; 513. Hydraulic rod; 514. Fixing plate; 515. Slider; 516. Torsion spring; 517. Spring; 6. Cleaning device; 61. Support bar; 62. Connecting rod; 63. Brush plate; 64. Brush; 65. Slide groove; 66. Gear; 67. Rack; 68. Push plate; 69. Slide groove; 610. Collection box. DETAILED DESCRIPTION

[0030] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figure 1-Figure 2 、 Figure 4As shown, this embodiment provides a thread rolling machine for metal fastener thread forming processing, comprising a workbench 1, a support leg 2 fixedly connected to the bottom of the workbench 1, a thread rolling device 3 provided on the top of the workbench 1, a support plate 4 fixedly connected to the top of the workbench 1, and a fixing device 5 provided on the top of the workbench 1;

[0033] The fixing device 5 includes a motor 51, the back side of the motor 51 is fixedly connected to the front side of the support plate 4, the output shaft of the motor 51 is fixedly connected to a threaded rotating rod 52, the circumferential surface of the threaded rotating rod 52 is threadedly connected to a threaded sleeve 53, the circumferential surface of the threaded sleeve 53 is fixedly connected to a connecting strip 54, the bottom of the connecting strip 54 is fixedly connected to a push rod 55, the bottom of the motor 51 is fixedly connected to a limiting rod 56, the circumferential surface of the limiting rod 56 passes through the threaded sleeve 53, and the circumferential surface of the limiting rod 56 is slidably connected to the inner wall of the threaded sleeve 53.

[0034] The bottom of the connecting bar 54 is rotatably connected to a rotating shaft 57, the circumferential surface of the rotating shaft 57 is fixedly connected to a pushing bar 58, the top of the workbench 1 is fixedly connected to a support rod 59, and the top of the support rod 59 is fixedly connected to a placement plate 510. The function of the rotating shaft 57 is to drive the pushing bar 58 to rotate when the pushing bar 58 contacts the slider 515.

[0035] A hydraulic cylinder 511 is fixedly connected to the top of the placement plate 510. A force rod 512 is slidably connected to one end of the hydraulic cylinder 511 through a piston, and a hydraulic rod 513 is slidably connected to the other end of the hydraulic cylinder 511 through a piston. The function of the hydraulic rod 513 is to drive the fixed plate 514 to move.

[0036] A fixing plate 514 is fixedly connected to the front side of the hydraulic rod 513, and a slider 515 is fixedly connected to the top of the placement plate 510. The function of the fixing plate 514 is to fix the screw head of the bolt.

[0037] The circumferential surface of the rotating shaft 57 is fixedly connected with a torsion spring 516, and the end of the torsion spring 516 away from the rotating shaft 57 is fixedly connected to the side of the connecting bar 54. The circumferential surface of the force rod 512 is fixedly connected with a spring 517, and the end of the spring 517 away from the force rod 512 is fixedly connected to the top of the hydraulic cylinder 511. The function of the torsion spring 516 is to enable the pushing bar 58 to be reset by the action of the torsion spring 516 when the threaded sleeve 53 moves upward. The function of the spring 517 is to enable the force rod 512 to be reset by the spring 517 when the pushing rod 55 does not push the force rod 512.

[0038] The number of the pushing rod 55, the hydraulic cylinder 511, the force rod 512, the hydraulic rod 513, the fixed plate 514 and the spring 517 are respectively set to two and are symmetrical with each other along the vertical center axis of the workbench 1. The shape of the slider 515 is set to a rectangle and the side of the slider 515 is an inclined surface. The top of the force rod 512 is located on the displacement trajectory of the pushing rod 55. The number of the pushing rod 55, the hydraulic cylinder 511, the force rod 512, the hydraulic rod 513, the fixed plate 514 and the spring 517 are respectively set to two and are symmetrical with each other along the vertical center axis of the workbench 1 in order to better fix the screw head.

[0039] In this embodiment, first, when the operator needs to use the device to roll the bolt, the operator first starts the thread rolling device 3 and then places the bolt on the placement plate 510. Then, by starting the motor 51, when the output shaft of the motor 51 rotates clockwise, it drives the threaded rotating rod 52 to rotate clockwise. When the threaded rotating rod 52 rotates clockwise, it drives the threaded sleeve 53 to move downward. When the threaded sleeve 53 moves downward, it drives the connecting bar 54 to move downward. When the connecting bar 54 moves downward, it drives the pushing rod 55 to move downward. When the pushing rod 55 moves downward, it pushes the force-bearing rod 512. When the pushing rod 55 When the force-bearing rod 512 is pushed, the force-bearing rod 512 will move into the hydraulic cylinder 511. When the force-bearing rod 512 moves into the hydraulic cylinder 511, the hydraulic rod 513 sliding at the other end of the hydraulic cylinder 511 will be pushed outward due to the action of the internal piston. When the hydraulic rod 513 moves outward, it will drive the fixing plate 514 to move outward, thereby fixing the screw head of the bolt to prevent displacement during thread rolling. At the same time, when the connecting bar 54 moves downward, it will also drive the rotating shaft 57 and the pushing bar 58 to move downward. When the pushing bar 58 moves downward and contacts the slider 515, it will move to the left with the rotating shaft 57 due to the inclined surface of the slider 515, thereby pushing the screw body of the bolt into the thread rolling device 3 for thread rolling. Since the length of the pushing bar 58 is longer than the length of the pushing rod 55, the screw body can be pushed into the thread rolling device 3 first without being pushed because the screw head is fixed first.

[0040] Example 2

[0041] like Figure 3 、 Figure 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that a cleaning device 6 is provided on the top of the workbench 1, and the cleaning device 6 includes a support bar 61, the side of the support bar 61 is fixedly connected to the side of the connecting bar 54, and the bottom of the support bar 61 is fixedly connected to a connecting rod 62, and the bottom of the connecting rod 62 is fixedly connected to a brush plate 63, and the bottom of the brush plate 63 is fixedly connected to bristles 64. The function of the bristles 64 is to clean impurities on the thread rolling device 3.

[0042] A slide groove 65 is provided on the front side of the support plate 4, a gear 66 is fixedly connected to the circumferential surface of the threaded rotating rod 52, a rack 67 is slidably connected to the top of the workbench 1, and a push plate 68 is fixedly connected to the front side of the rack 67. The function of the push plate 68 is to clean up impurities on the workbench 1.

[0043] A sliding groove 69 is provided on the top of the workbench 1 , and a collecting box 610 is slidably connected to the inner wall of the sliding groove 69 . The function of the collecting box 610 is to collect impurities pushed down by the push plate 68 on the workbench 1 .

[0044] The number of support bars 61, connecting rods 62, brush plates 63 and bristles 64 is set to two respectively and they are symmetrical with each other along the vertical center axis of the workbench 1. The circumferential surface of the gear 66 is meshed with the side of the rack 67. The purpose of the support bars 61, connecting rods 62, brush plates 63 and bristles 64 being set to two respectively and they are symmetrical with each other along the vertical center axis of the workbench 1 is to better clean the thread rolling device 3. The purpose of the circumferential surface of the gear 66 being meshed with the side of the rack 67 is to drive the rack 67 to move when the gear 66 rotates.

[0045] In this embodiment, the force of the downward movement of the connecting bar 54 can drive the cleaning device 6. When there are impurities in the thread rolling device 3, it will affect the quality of the rolled thread. Therefore, the thread rolling device 3 can be cleaned by the cleaning device 6 before use. When the connecting bar 54 moves downward, it will drive the support bar 61 to move downward. When the support bar 61 moves downward, it will drive the connecting rod 62 to move downward. When the connecting rod 62 moves downward, it will drive the brush plate 63 to move downward. When the brush plate 63 moves downward, it will drive the bristles 64 to move downward. Since the length of the connecting rod 62 is longer than the push rod 55, the thread rolling device 3 can be cleaned before thread rolling. When the thread rolling is completed, the thread turning rod 52 rotates counterclockwise to drive the gear 66 to rotate counterclockwise. When the gear 66 rotates counterclockwise, it will push the rack 67 forward. When the rack 67 moves forward, it will push the push plate 68 forward, so that the impurities dropped on the workbench 1 can be pushed into the collection box 610.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A thread rolling machine for metal fastener thread forming processing, comprising a workbench (1), characterized in that: The bottom of the workbench (1) is fixedly connected to a support leg (2), the top of the workbench (1) is provided with a thread rolling device (3), the top of the workbench (1) is fixedly connected to a support plate (4), and the top of the workbench (1) is provided with a fixing device (5); The fixing device (5) comprises a motor (51), the back side of the motor (51) is fixedly connected to the front side of the support plate (4), the output shaft of the motor (51) is fixedly connected to a threaded rotating rod (52), the circumferential surface of the threaded rotating rod (52) is threadedly connected to a threaded sleeve (53), the circumferential surface of the threaded sleeve (53) is fixedly connected to a connecting strip (54), the bottom of the connecting strip (54) is fixedly connected to a push rod (55), the bottom of the motor (51) is fixedly connected to a limiting rod (56), the circumferential surface of the limiting rod (56) passes through the threaded sleeve (53), and the circumferential surface of the limiting rod (56) is slidably connected to the inner wall of the threaded sleeve (53).

2. A thread rolling machine for metal fastener thread forming according to claim 1, characterized in that: The bottom of the connecting bar (54) is rotatably connected to a rotating shaft (57), the circumferential surface of the rotating shaft (57) is fixedly connected to a pushing bar (58), the top of the workbench (1) is fixedly connected to a supporting rod (59), and the top of the supporting rod (59) is fixedly connected to a placing plate (510).

3. A thread rolling machine for metal fastener thread forming according to claim 2, characterized in that: A hydraulic cylinder (511) is fixedly connected to the top of the placement plate (510), one end of the hydraulic cylinder (511) is internally connected to a force-bearing rod (512) via a piston sliding connection, and the other end of the hydraulic cylinder (511) is internally connected to a hydraulic rod (513) via a piston sliding connection.

4. A thread rolling machine for metal fastener thread forming according to claim 3, characterized in that: A fixing plate (514) is fixedly connected to the front side of the hydraulic rod (513), and a sliding block (515) is fixedly connected to the top of the placement plate (510).

5. The thread rolling machine for metal fastener thread forming according to claim 4, characterized in that: A torsion spring (516) is fixedly connected to the circumferential surface of the rotating shaft (57), and one end of the torsion spring (516) away from the rotating shaft (57) is fixedly connected to the side of the connecting bar (54). A spring (517) is fixedly connected to the circumferential surface of the force-bearing rod (512), and one end of the spring (517) away from the force-bearing rod (512) is fixedly connected to the top of the hydraulic cylinder (511).

6. A thread rolling machine for metal fastener thread forming according to claim 5, characterized in that: The number of the push rod (55), the hydraulic cylinder (511), the force rod (512), the hydraulic rod (513), the fixing plate (514) and the spring (517) is set to two respectively and they are symmetrical with each other along the vertical center axis of the workbench (1); the shape of the slider (515) is set to be rectangular and the side of the slider (515) is an inclined surface; the top of the force rod (512) is located on the displacement trajectory of the push rod (55).

7. A thread rolling machine for metal fastener thread forming according to claim 6, characterized in that: A cleaning device (6) is provided on the top of the workbench (1), and the cleaning device (6) comprises a support bar (61), the side of the support bar (61) is fixedly connected to the side of the connecting bar (54), the bottom of the support bar (61) is fixedly connected to a connecting rod (62), the bottom of the connecting rod (62) is fixedly connected to a brush plate (63), and the bottom of the brush plate (63) is fixedly connected to bristles (64).

8. A thread rolling machine for metal fastener thread forming according to claim 7, characterized in that: A sliding groove (65) is provided on the front side of the support plate (4), a gear (66) is fixedly connected to the circumferential surface of the threaded rotating rod (52), a rack (67) is slidably connected to the top of the workbench (1), and a push plate (68) is fixedly connected to the front side of the rack (67).

9. A thread rolling machine for metal fastener thread forming according to claim 8, characterized in that: A sliding groove (69) is provided on the top of the workbench (1), and a collection box (610) is slidably connected to the inner wall of the sliding groove (69).

10. A thread rolling machine for metal fastener thread forming according to claim 9, characterized in that: The number of the support bar (61), the connecting rod (62), the brush plate (63) and the bristles (64) is respectively set to two and symmetrical with each other along the vertical center axis of the workbench (1), and the circumferential surface of the gear (66) is meshed with the side surface of the rack (67).

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