Automatic thread rolling machine for external threads of bolt body

Abstract

The utility model relates to the technical field of automatic thread rolling machines, and provides a bolt body external thread automatic thread rolling machine which comprises a workbench, a rolling assembly is arranged at the top of the workbench, a power bin is formed in the workbench, a pressure adjusting mechanism is arranged at the top of the workbench, and the pressure adjusting mechanism comprises a motor. The side face of the motor is fixedly connected to the inner wall of the power bin. According to the utility model, through the mutual cooperation among the motor, the rack, the cooling box and other components of the pressure regulating mechanism, when external thread rolling needs to be carried out on the bolt body, a worker starts the motor, and through the mutual engagement of a gear and the rack, the movable plate drives the rolling assembly to carry out pressure-applying thread rolling on the bolt body; and meanwhile, the trigger rod extrudes the trigger button to enable the cooling box to be opened, the bolt body in machining is cooled, and through the technical scheme, the technical problem that in the related technology, the thread rolling assembly cannot be adjusted is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of automatic thread rolling machine technology, and more specifically, to an automatic thread rolling machine for external threads of bolts. Background Technology

[0002] A bolt is a cylindrical threaded mechanical part that is fitted with a nut. It consists of two parts: a head and a shank (a cylinder with external threads). In the production process of bolts, the external threads of the bolt need to be processed by an automatic thread rolling machine. The thread rolling machine is a multi-functional cold extrusion forming machine tool.

[0003] According to a public disclosure (publication number: CN 221133905U), an automatic external thread rolling machine for bolts includes a worktable, thread rolling wheels, a conveyor belt, a mounting plate, bolt supports, a push block, and a collection box. Two thread rolling wheels are moved and rotated on the upper side of the worktable via a drive assembly. The conveyor belt is driven between the two thread rolling wheels via a conveying mechanism. Bolt supports are detachably mounted on each mounting plate, and each bolt support has a placement groove containing a frosted pad. The mounting plate also has a mounting groove matching the bolt supports. The push block is lifted and lowered on the lower side of one of the mounting plates via a push assembly, and a push port matching the push block is provided at the mounting groove. Two collection boxes are detachably mounted on both sides of the worktable.

[0004] In the aforementioned application, the cooperation between the worktable and the thread rolling wheel assembly makes it difficult to adjust the position of the thread rolling wheel when it is used to roll the bolt body, resulting in an inaccurate processing effect for different bolt bodies. Therefore, we propose an automatic thread rolling machine for bolt bodies. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this disclosure provide an automatic thread rolling machine for external bolt threads, which solves the problem of adjusting the thread rolling assembly in related technologies.

[0006] According to one aspect, at least one embodiment of this disclosure provides an automatic thread rolling machine for external bolt threads, including a worktable, a rolling assembly disposed on the top of the worktable, a power chamber opened inside the worktable, and a pressure adjusting mechanism disposed on the top of the worktable;

[0007] The pressure regulating mechanism includes a motor, the side of which is fixedly connected to the inner wall of the power chamber. The output end of the motor is fixedly connected to a rotating shaft, and a gear is fixedly passed through the circumference of the rotating shaft. A sliding groove is provided inside the power chamber, and a rack is slidably connected inside the sliding groove. A connecting rod is fixedly connected to the side of the rack, and a movable plate is fixedly connected to the end of the connecting rod away from the side of the rack. A movable slot is provided on the top of the worktable, and the side of the movable plate is slidably connected to the inside of the movable slot.

[0008] For example, in at least one embodiment of this disclosure, an automatic thread rolling machine for external threads of bolts further includes: a cooling box fixedly connected to the top of the worktable, a conveying pipe fixedly passing through the top of the cooling box, and a spray plate fixedly connected to the end of the conveying pipe away from the top of the cooling box, the purpose of which is to cool the processed bolt body.

[0009] A trigger rod is fixedly connected to the side of the movable plate, and a trigger button is provided on the side of the cooling box. The purpose of the trigger button is to start the cooling box by pressing the trigger rod.

[0010] A torsion spring is fixedly connected to the side of the trigger button. The end of the torsion spring away from the side of the trigger button is fixedly connected to the side of the cooling box. The function of the torsion spring is to reset the trigger button by its elasticity when the trigger button is not subjected to force.

[0011] The circumferential surface of the gear meshes with the side surface of the rack. The side surface of the trigger button is located on the displacement trajectory of the trigger rod. The meshing of the circumferential surface of the gear with the side surface of the rack ensures that the rotation of the gear can drive the rack to move. The side surface of the trigger button being located on the displacement trajectory of the trigger rod ensures that the movement of the trigger rod can press the trigger button.

[0012] According to another aspect, at least one embodiment of this disclosure also provides an automatic external thread rolling machine for bolts, including a fixing mechanism. The fixing mechanism includes a threaded rod, one end of which is fixedly connected to one end of a rotating shaft. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rod, and a push rod is fixedly connected to the top of the threaded sleeve. A hydraulic cylinder is fixedly connected inside the power chamber. One end of the hydraulic cylinder is slidably connected to a force-bearing rod via a piston, and the other end of the hydraulic cylinder is slidably connected to a hydraulic rod via another piston. A fixing plate is fixedly connected to the end of the hydraulic rod away from the side of the hydraulic cylinder. The function of the fixing mechanism is to prevent the material from falling off during processing due to displacement.

[0013] For example, in at least one embodiment of this disclosure, an automatic thread rolling machine for external bolt threads is provided, which further includes: a movable rod fixedly connected to the side of the threaded sleeve, the side of the movable rod penetrating through the side of the power chamber and slidably connected to the side of the power chamber, and a pusher plate fixedly connected to the end of the movable rod away from the side of the threaded sleeve, the purpose of which is to push the processed material.

[0014] A return spring is fixedly connected to the side of the hydraulic cylinder. The end of the return spring away from the side of the hydraulic cylinder is fixedly connected to the circumferential surface of the force-bearing rod. The purpose is to reset the rod by the elasticity of the return spring when the force-bearing rod is not under force.

[0015] A placement frame is fixedly connected to the top of the workbench, and a limiting plate is fixedly inserted through the circumferential surface of the threaded rod. The function of the placement frame is to place materials, and the function of the limiting plate is to limit the displacement distance of the threaded sleeve.

[0016] One end of the force-bearing rod is located on the displacement trajectory of the push rod, the purpose of which is to ensure that the movement of the push rod can push the force-bearing rod.

[0017] The beneficial effects of the embodiments disclosed herein are as follows:

[0018] 1. In this utility model, through the mutual cooperation between the components such as the motor, rack, and cooling box of the pressure regulating mechanism, when it is necessary to perform external thread rolling on the bolt body, the operator starts the motor, and through the meshing of the gear and rack, the moving plate drives the rolling assembly to apply pressure to the bolt body for thread rolling. At the same time, the trigger rod presses the trigger button to open the cooling box and cool the bolt body during processing. This design achieves the effect of pressing the bolt surface, and can accurately control the thread rolling depth and rolling speed to ensure the quality of the thread.

[0019] 2. In this utility model, through the mutual cooperation between the push rod, hydraulic cylinder and push plate of the fixing mechanism, the rotating shaft drives the threaded rod to rotate at the same time. The rotation of the threaded rod drives the threaded sleeve to move. The movement of the threaded sleeve drives the push rod to move. During the movement of the push rod, it squeezes the force rod, causing the hydraulic rod to move and drive the fixing plate to move, thereby fixing the processed bolt body. This design achieves the effect of fixing the processed bolt body, effectively preventing displacement of the bolt body during processing, which would lead to inaccurate thread shape. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0021] Figure 1 This is a structural schematic diagram of the three-dimensional appearance of the present invention from a first-person perspective;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention from a second-view three-dimensional cross-section;

[0023] Figure 3 This utility model Figure 1 A three-dimensional magnified structural diagram of A in the diagram;

[0024] Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of B;

[0025] Figure 5 This utility model Figure 2 A magnified three-dimensional structural diagram of C;

[0026] In the diagram: 1. Workbench; 2. Rolling assembly; 3. Power chamber; 4. Pressure regulating mechanism; 41. Motor; 42. Rotating shaft; 43. Gear; 44. Slide groove; 45. Rack; 46. Connecting rod; 47. Moving plate; 48. Moving groove; 49. Cooling box; 410. Conveying pipe; 411. Spraying plate; 412. Trigger rod; 413. Trigger button; 414. Torsion spring; 5. Fixing mechanism; 51. Threaded rod; 52. Threaded sleeve; 53. Push rod; 54. Hydraulic cylinder; 55. Force rod; 56. Hydraulic rod; 57. Fixing plate; 58. Moving rod; 59. Push plate; 510. Return spring; 511. Placement rack; 512. Limiting plate. Detailed Implementation

[0027] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0028] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0030] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-5 As shown, it illustrates an automatic bolt external thread rolling machine according to an embodiment of the present disclosure, including a worktable 1, a rolling assembly 2 provided on the top of the worktable 1, a power chamber 3 opened inside the worktable 1, and a pressure regulating mechanism 4 provided on the top of the worktable 1.

[0034] The pressure regulating mechanism 4 includes a motor 41, the side of which is fixedly connected to the inner wall of the power chamber 3. The output end of the motor 41 is fixedly connected to a rotating shaft 42, and a gear 43 is fixedly passed through the circumference of the rotating shaft 42. A sliding groove 44 is provided inside the power chamber 3, and a rack 45 is slidably connected inside the sliding groove 44. A connecting rod 46 is fixedly connected to the side of the rack 45, and a moving plate 47 is fixedly connected to the end of the connecting rod 46 away from the side of the rack 45. A moving slot 48 is provided on the top of the worktable 1, and the side of the moving plate 47 is slidably connected to the inside of the moving slot 48.

[0035] In some examples, the workbench 1 is also provided with a cooling box 49 fixedly connected to the top of the workbench 1, a conveying pipe 410 fixedly passing through the top of the cooling box 49, and a spray plate 411 fixedly connected to the end of the conveying pipe 410 away from the top of the cooling box 49, the purpose of which is to cool the processed bolt body.

[0036] A trigger rod 412 is fixedly connected to the side of the movable plate 47, and a trigger button 413 is provided on the side of the cooling box 49. The purpose of triggering the cooling box 49 is to press the trigger button 413 by the trigger rod 412.

[0037] A torsion spring 414 is fixedly connected to the side of the trigger button 413. The end of the torsion spring 414 away from the side of the trigger button 413 is fixedly connected to the side of the cooling box 49. The function of the torsion spring 414 is to reset the trigger button 413 by the elasticity of the torsion spring 414 when the trigger button 413 is not subjected to force.

[0038] The circumferential surface of gear 43 meshes with the side surface of rack 45. The side surface of trigger button 413 is located on the displacement trajectory of trigger rod 412. The meshing of the circumferential surface of gear 43 with the side surface of rack 45 ensures that the rotation of gear 43 can drive rack 45 to move. The side surface of trigger button 413 is located on the displacement trajectory of trigger rod 412 to ensure that the movement of trigger rod 412 can press trigger button 413.

[0039] For example, such as Figures 1-5 As shown, when the bolt body needs to be threaded, the operator starts the motor 41. The output end of the motor 41 rotates counterclockwise, which drives the rotating shaft 42 to rotate. The rotating shaft 42 drives the gear 43 to rotate. The gear 43 meshes with the rack 45. The rotation of the gear 43 drives the rack 45 to move centrally inside the slide groove 44. The movement of the rack 45 drives the moving plate 47 to move inside the moving groove 48 through the connecting rod 46. The moving plate 47 drives the rolling assembly 2 to apply pressure to the bolt body for thread rolling. The movement of the moving plate 47 drives the trigger rod 412 to move. The movement of the trigger rod 412 presses the trigger button 413, causing the cooling box 49 to open. The coolant inside the cooling box 49 enters the spray plate 411 through the delivery pipe 410 to cool the bolt body being processed.

[0040] like Figures 1-5 As shown, it illustrates an automatic bolt external thread rolling machine according to another embodiment of this disclosure. It is largely the same as the above-described technical solution, so only the differences are described. It includes a fixing mechanism 5, which includes a threaded rod 51. One end of the threaded rod 51 is fixedly connected to one end of the rotating shaft 42. A threaded sleeve 52 is threadedly connected to the circumferential surface of the threaded rod 51. A push rod 53 is fixedly connected to the top of the threaded sleeve 52. A hydraulic cylinder 54 is fixedly connected inside the power chamber 3. One end of the hydraulic cylinder 54 is slidably connected to a force-bearing rod 55 through a piston. The other end of the hydraulic cylinder 54 is slidably connected to a hydraulic rod 56 through another piston. A fixing plate 57 is fixedly connected to the end of the hydraulic rod 56 away from the side of the hydraulic cylinder 54. The function of the fixing mechanism 5 is to prevent the material from falling off during the processing due to displacement.

[0041] In some examples, the following are also included: a movable rod 58 is fixedly connected to the side of the threaded sleeve 52, the side of the movable rod 58 penetrates the side of the power chamber 3 and is slidably connected to the side of the power chamber 3, and a pusher plate 59 is fixedly connected to the end of the movable rod 58 away from the side of the threaded sleeve 52, the purpose of which is to push the processed material.

[0042] A return spring 510 is fixedly connected to the side of the hydraulic cylinder 54. The end of the return spring 510 away from the side of the hydraulic cylinder 54 is fixedly connected to the circumferential surface of the force rod 55. The purpose is to reset the force rod 55 by the elasticity of the return spring 510 when the force rod 55 is not under force.

[0043] The top of the workbench 1 is fixedly connected to a placement rack 511, and the circumferential surface of the threaded rod 51 is fixedly penetrated by a limiting plate 512. The function of the placement rack 511 is to place materials, and the function of the limiting plate 512 is to limit the displacement distance of the threaded sleeve 52.

[0044] One end of the force-bearing rod 55 is located on the displacement trajectory of the push rod 53, the purpose of which is to ensure that the movement of the push rod 53 can push the force-bearing rod 55.

[0045] For example, such as Figures 1-5As shown, the rotating shaft 42 drives the threaded rod 51 to rotate simultaneously. The rotation of the threaded rod 51 drives the threaded sleeve 52 to move, and the movement of the threaded sleeve 52 drives the push rod 53 to move. During the movement of the push rod 53, it presses against the force rod 55, causing the force rod 55 to retract into the hydraulic cylinder 54. At this time, the hydraulic rod 56 extends outward under the pressure of the liquid inside the hydraulic cylinder 54. The movement of the hydraulic rod 56 drives the fixed plate 57 to move, fixing the processed bolt body. After the bolt body is processed, the output end of the motor 41 rotates clockwise, causing the push rod 53 to leave the force rod 55. The elasticity of the return spring 510 causes the fixed plate 57 to return to its original position. The movement of the threaded sleeve 52 drives the push plate 59 to move through the moving rod 58, pushing the processed bolt body for easy handling by the staff.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A bolt external thread automatic thread rolling machine, characterized by, The application relates to a rolling workbench, which comprises a workbench (1), a rolling assembly (2) arranged on the top of the workbench (1), a power compartment (3) arranged in the workbench (1), and a pressure regulating mechanism (4) arranged on the top of the workbench (1). The pressure regulating mechanism (4) comprises a motor (41), the side surface of the motor (41) is fixedly connected to the inner wall of the power compartment (3), the output end of the motor (41) is fixedly connected with a rotating shaft (42), the circumferential surface of the rotating shaft (42) is fixedly penetrated by a gear (43), the inner portion of the power compartment (3) is provided with a sliding groove (44), the inner portion of the sliding groove (44) is slidably connected with a rack (45), the side surface of the rack (45) is fixedly connected with a connecting rod (46), the end, which is away from the side surface of the rack (45), of the connecting rod (46) is fixedly connected with a moving plate (47), the top of the workbench (1) is provided with a moving groove (48), and the side surface of the moving plate (47) is slidably connected with the inner portion of the moving groove (48).

2. A bolt external thread automatic thread rolling machine according to claim 1, characterized in that, The top of the workbench (1) is fixedly connected with a cooling box (49), the top of the cooling box (49) is fixedly penetrated by a conveying pipe (410), and the end, which is away from the top of the cooling box (49), of the conveying pipe (410) is fixedly connected with a spraying plate (411).

3. A bolt external thread automatic thread rolling machine according to claim 2, characterized in that, The side surface of the moving plate (47) is fixedly connected with a trigger rod (412), and the side surface of the cooling box (49) is provided with a trigger button (413).

4. The bolt external thread automatic thread rolling machine according to claim 3, characterized in that, The side surface of the trigger button (413) is fixedly connected with a torsional spring (414), and the end, which is away from the side surface of the trigger button (413), of the torsional spring (414) is fixedly connected with the side surface of the cooling box (49).

5. The bolt external thread automatic thread-rolling machine according to claim 4, characterized in that, The circumferential surface of the gear (43) and the side surface of the rack (45) are in meshing connection, and the side surface of the trigger button (413) is located on the displacement track of the trigger rod (412).

6. A bolt external thread automatic thread rolling machine according to claim 5, wherein The top of the workbench (1) is provided with a fixing mechanism (5), the fixing mechanism (5) comprises a threaded rod (51), one end of the threaded rod (51) is fixedly connected with one end of the rotating shaft (42), the circumferential surface of the threaded rod (51) is threadedly connected with a threaded sleeve (52), the top of the threaded sleeve (52) is fixedly connected with a push rod (53), the inner portion of the power compartment (3) is fixedly connected with a hydraulic cylinder (54), one end of the hydraulic cylinder (54) is slidably connected with a stress rod (55) through a piston, the other end of the hydraulic cylinder (54) is slidably connected with a hydraulic rod (56) through another piston, and the end, which is away from the side surface of the hydraulic cylinder (54), of the hydraulic rod (56) is fixedly connected with a fixing plate (57).

7. A bolt external thread automatic thread rolling machine according to claim 6, characterized in that, The side surface of the threaded sleeve (52) is fixedly connected with a moving rod (58), the side surface of the moving rod (58) penetrates through and is slidably connected with the side surface of the power compartment (3), and the end, which is away from the side surface of the threaded sleeve (52), of the moving rod (58) is fixedly connected with a pushing plate (59).

8. The bolt external thread automatic thread rolling machine according to claim 7, characterized in that, The side surface of the hydraulic cylinder (54) is fixedly connected with a reset spring (510), and the end, which is away from the side surface of the hydraulic cylinder (54), of the reset spring (510) is fixedly connected with the circumferential surface of the stress rod (55).

9. The bolt external thread automatic thread-rolling machine according to claim 8, characterized in that, The top of the workbench (1) is fixedly connected with a placing rack (511), and the circumferential surface of the threaded rod (51) is fixedly penetrated by a limiting plate (512).

10. The bolt external thread automatic thread rolling machine according to claim 9, characterized in that, One end of the force receiving rod (55) is located on the displacement track of the push rod (53).

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